(E21C3)

E   Fixed constructions(158841)
E21C     ining or quarrying(17294)
E21C3                 (5992)
E21C3/26 - (2)
E21C3/30 - (1)
Cut for mining and road machines // 2643386
FIELD: mining.SUBSTANCE: cut contains a holder, a head in the form of a body of revolution with a replaceable working part, into which a tip of carbide material is mounted. The length of the replaceable working part of the head is 0.4-0.8 of the length of the head. The replaceable working part of the head is made with an axial cylindrical projection and an annular groove. The head is made with a nest to accommodate an axial protrusion. The head has a through threaded hole in the socket. In the threaded through hole, there is a locking screw that enters the annular groove of the replaceable working part of the head. The head with the slot of the locking screw is buried in the threaded hole. The tip is made in the form of a disk fixed in the axial slot of the replaceable working part of the head on the axis of rotation and equipped with a cutting edge. In the head of the cutting tool, a second seat is provided in which the axial projection of the second exchangeable working part of the head is located. At the side of the second nest solved through the threaded hole in which screwed the second set screw so that it is located in the second nest and placed into the second ring machining second interchangeable head working section. The head with the slot of the locking screw is buried in the threaded hole. At the end of the second replaceable working part of the head, opposite to the axial projection, there is a cone tip made of hard-alloy material. In holder, there is a hole for the cotter pin to lock the cutter in the toolholder channel in regulation matches plane passing through the axis of rotation changeable working parts of the head, cutting plane array. The first replaceable working part of the head with the tip in the form of a disk is placed first in the direction of movement of the tool. The head of the cutter is made tapering in the direction from the holder to the tips to the oval, encompassing the circumference of both replaceable parts and the head.EFFECT: increasing the effectiveness of breaking rock mass.4 dwg
ethod of location of lower boundary of consolidated layer of ridge and hummock based on water melt salt content in thermal electric drilling // 2643376
FIELD: transportation.SUBSTANCE: method involves the implementation of thermal electric drilling of wells in ice. Simultaneously with the drilling, melt water is sucked from the edge of the working part of the heating crown, which is fed through the hose to the ice surface to the salinity meter, and the drilling speed and salinity of the melt water are recorded on the computer or logger. In further processing of the records the drilling speed is compared with the salinity of melt water, taking into account the time of water passing from the well through the hose to the salinity meter. And the drilling speed, corresponding to the transition of a drill rod from dense ice to lose ice or void and which is the closest to the sharp increase in the salinity of water drained due to the large differences in salinity of melt ice and sea water, increases, is determined as the drill rod coming out of the consolidated layer and the depth of location of its lower boundary is recorded.EFFECT: creation of a method for determining the location of the lower boundary of the consolidated layer.1 cl
Hydraulic hammer // 2643244
FIELD: mining; construction.SUBSTANCE: invention relates to mining and construction industries and is aimed at increasing the efficiency of hydraulic hammer production and operation. Hydraulic hammer contains a body with pressure and discharge channels and with reciprocating striker mounted in it for transmitting a force pulse to work tool having pressure channel, overflow channel, drain channel and control channel, and in the upper part of which there is a hole in which the control slide valve is located. Striker forms with the housing a pressure cavity, an overflow cavity for equalizing the fluid pressure and a drain cavity, and the control slide valve is made with three lands, where the diameter of the upper land is greater than the diameter of the lower land, and the middle land is stepped.EFFECT: invention is aimed at increasing the efficiency of hydraulic hammer production and operation.10 cl, 1 dwg

illing machine, crusher of rock fractures for it and system of longwall mining // 2642698
FIELD: mining engineering.SUBSTANCE: machine is located adjacent to a face conveyor for transporting the material, and comprises a chassis, a boom pivotally connected to the chassis, a blade drum for engagement with stope face, while knife drum is mounted for rotation on the boom, and the crusher rock fractures used to trap material on the face conveyor. In this case, the chassis includes a first end and a second end, the chassis being movable in at least a first direction that is substantially parallel to the stope face. The crusher of rock fractures includes an elongated crushing arm having a first end and a second end, the first end being pivotally connected to the chassis about the axis of the lever. The crusher of the rock fractures also includes a number of teeth for crushing the mined material.EFFECT: development of longwall in a compact manner, with a compact crusher.19 cl, 4 dwg

Rock oriented cutting device // 2641679
FIELD: mining.SUBSTANCE: device includes a hollow cylindrical body with radial holes bushing with the bevelled inside edges, sleeve liquid permeable material, filled with loose substance solidified when interacting with the fluid. It is equipped with a second sleeve. The hollow cylindrical body with radial holes is made in the form of a cup which, on the side opposite to its bottom, is inserted with the possibility of longitudinal displacement into the sleeve to radial holes. The bushing from the side free from the mentioned housing is fastened to a pipe string for supplying a working fluid. One of these hoses is wound on the bushing and the second one on the end of the hull free from the bush to the radial holes.EFFECT: increasing the tensile force in the plane orthogonal to the borehole axis and excluding the effect of the device on the rock break force.5 cl, 1 dwg
Guiding device in assembly for guiding plough // 2641151
FIELD: agriculture.SUBSTANCE: guiding device in assembly comprises a housing part including: a first guide rail for providing a predetermined direction of the corner plough and extending along a first axis, and a second guide rail spaced from the first guide rail and defining a maintenance space therebetween and extending along the second axis coaxially to the first axis. The guiding assembly additionally comprises a liner inserted into the maintenance space and has a third guide rail extending along the third axis; with the assembled liner, the third axis is aligned with the first and second axes; and a support device capable of supporting and positioning the liner relative to the housing part.EFFECT: increasing the productivity due to reducing maintenance time.15 cl, 10 dwg

Water thermodrill for drilling wells in ice bodies // 2640605
FIELD: machine engineering.SUBSTANCE: device contains a hollow body in the form of a pipe, to the upper end of which is attached a drill hose, supplying a hot water to the body, a drill bit is attached to the lower end of the body. The drill bit consists of a tip and a bush. The tip has a small parabolic sharpening about one centimetre in length from the outside and a conical bore inside. The bush with an axial hole along its entire length has a conical groove outside at the bottom and a conical groove inside, on the outside of the conical surface of the bush the rectangular grooves are cut in the form of thread. The tip is attached to the body by means of a thread. The bush is mounted coaxially in the tip. The conical surface of the bush enters the cone hole of the tip so that their ends are flush at the same level, while the grooves on the conical surface of the bush form channels for discharging water from the bit in the form of spread, swirling jets. The bush is pressed against the tip by means of a spring held in place by a nut screwed into the upper part of the tip and has a free move upward with increasing clearance between its outer conical surface and the inner conical surface of the tip.EFFECT: sensitivity is increased to determine the position of the boundaries and the dimensions of voids in ice piles while maintaining a high drilling speed.2 cl, 3 dwg

Pneumatic shock mechanism // 2638603
FIELD: construction.SUBSTANCE: shock mechanism consists of a cylindrical body with final channels, circular flange with central through hole, working tool with a shank, step hammer with a rod part, a bar with a rod part, installed in the central hole of the circular flange, permanently based in the central through hole of the step hammer, a circular chamber of a pneumatic buffer (working stroke), a sleeve of the cylindrical body with a hole for the passage of the rod part and forming on the side of the circular chamber of the pneumatic buffer (working stroke) a ring nip, restricting the travel value of the hammer, a nozzle with a channel for feeding air, fixed relatively to the cylindrical body, a circular distributing chamber in the sleeve of the cylindrical body, a network air chamber on the side of the circular flange, idle movement chamber on the side of the shank of the working tool, held by a spring against the cylindrical body. On the lateral surface of the rod part of the bar an inclined flattened channel is made with a curvature surface of higher than the second order, providing changing through passage cross-section, increasing from the full diameter size of the rod part of the bar before it ends on the face of the step hammer, installed in the central through hole.EFFECT: reduction of local airflow resistance at the inlet, reduction of the cycle time, increase in the utilization factor of the internal energy of the air, and the cost-effectiveness of the pneumatic shock mechanism.3 dwg

Air hammer // 2637682
FIELD: construction.SUBSTANCE: air hammer includes an air hammer mechanism of a throttle-valveless type, comprising a working tool with a shank, a cylindrical housing, a cup with a channel for supplying air from the circuit, fixed detachably relative to the housing, an annular flange with a central opening, an end pre-chamber formed between the cup and the annular flange, a striker with a through axial hole, disposed in the housing and separating the housing cavity into a working stroke chamber and an idling chamber, a rod-tube mounted in the central opening of the annular flange, passed through the central opening in the cup and fixed relative to the cup itself, a groove in the idling chamber, a radial release channel in the rod-tube with the channel continuation in the form of a longitudinal axial channel opening into the atmosphere and opened by the striker end from the shank side of the working tool. An annular accumulation chamber is formed between the cup and the cylindrical housing. The annular flange is equipped with a sidewall and a radial bypass channel formed therein, continuously communicating the end pre-chamber with the annular accumulation chamber. In the working stroke chamber of the annular flange side, an annular chamber of a pneumatic buffer and an annular power augmentation chamber are made in the form of annular recesses separated by an annular bead. In the housing wall, at the level of the recess of the annular power augmentation chamber, through-pass radial power augmentation channels are made, constantly communicating the annular accumulation chamber with the annular power augmentation chamber. The lateral rod-tube surface is equipped with a bypass channel in the form of a channel-flat with a cutting edge on the side of the annular flange, so that the bypass channel inlet on the side of the working stroke chamber is made at the level of the annular bead separating the annular chamber of the pneumatic buffer and the annular power augmentation chamber.EFFECT: increasing the momentum of the pressure forces for the striker acceleration, both during the idling and the working stroke, increasing the kinetic energy of the striker with its subsequent transmission to the working tool shank.1 dwg
ethod for developing mine workings and conducting stoping operations // 2634597
FIELD: mining engineering.SUBSTANCE: method of developing mine workings and conducting stopping operations includes drilling of cut and periphery wells (holes). The operations are carried out in two stages. At the first stage, the cut wells (holes) of depth equal to 1…1.2 of the periphery wells depth (holes) are drilled according to a preset blasting scheme. Then transverse hydraulic fracturing is carried out in rock mass through the cut well (hole), cutting off the blasted block from the main rock mass. Longitudinal hydraulic fracturing is carried out through periphery wells (holes), dividing basic rock mass into blasted blocks with size preset by the blasting scheme. Prior to commencing hydraulic fracturing operations in the cut well (hole), cutting of transversal initiating slit is carried out. Longitudinal initiating slits are cut in periphery wells (holes). At the second stage, after the hydraulic fracturing, explosive charge is set in the drilled wells (holes) according to a structure allowing to blast with reduced impact. The blocks formed by hydraulic fracturing are separated from main rock mass or mechanical impact on the blocks is applied, providing opening of transversal and longitudinal cracks of hydraulic fracturing and breaking possible bridges therebetween. The blocks blasted in the result of explosion or mechanical impact are transported along the workings to surface.EFFECT: reduced volume of drilling work, reduced amount of explosive used.1 dwg

Device for determining poisson factors and transverse deformations of fragments of crushed rock array and evaluating their compressibility in array // 2634312
FIELD: mining engineering.SUBSTANCE: device comprises a frame of sidewalls, beams and stand connected to a closed circuit, a beam installed in the center of the frame, and loading mechanisms. The loading mechanisms are made in the form of vertical and horizontal hydraulic jacks with dynamometers installed leaning against the beam mounted in the frame center and the frame stand, respectively, it is also provided with a plate which is installed horizontally on the surface of the array of crushed rocks and connected by strings with instrumentation for registering vertical deformation of the array, a carriage mounted on the plate configured for horizontal movement, inside which a compression ring with a stamp is fixed. A second horizontal plate, a second carriage on ball bearings, a hydraulic jack and a dynamometer are arranged in series on the stamp of the compression ring and connected to the central beam of the frame, wherein the stamp is connected to instrumentation for registration of its movements.EFFECT: increased efficiency and reliability for determination of Poisson factors and transverse deformation of fragments of crushed rock array and compressibility of rock in the array.2 dwg

ethod to weaken surface layer of open pit benches during seasonal freezing of rock // 2634149
FIELD: mining engineering.SUBSTANCE: method includes cutting of inclined slots on a slope and horizontal slots on a working platform by a working member of a disc-cutting excavator with milling cutters installed parallel to each other. Independent periodic and asynchronous superposition of oscillations to each of the milling cutters is carried out separately by means of vibration mechanisms, which frequency and amplitude oscillations are transferred depending on inclination angle of a telescopic rod, directions of cutting force by the milling cutters and physico-mechanical properties of rock controlled by sensors of automatic process control system and control of working systems of the disc-milling excavator. The adjustment of the milling cutters positioning with respect to each other is carried out along the guides by means of hydraulic mechanism.EFFECT: increased performance, reliability and process efficiency of frozen rock softening.2 dwg

ethod for developing steeply dipping deposits of solid mineral deposits // 2634144
FIELD: mining engineering.SUBSTANCE: method includes positioning an automated deep mining complex with relative to a face with consideration of the direction of the ore body deposition. The width of the ore body plane coverage in the horizontal is provided by means of complex positioning mechanism relative to guides, wherein information about the contours of the blasted rock is provided by rock contour control sensors to a system control unit. Synchronization of the bucket working cycle with cutting member is carried out by means of the control system and coordination of mechanisms operation with consideration of rational face formation, providing accumulation of rock at the face bottom and subsequent excavation of rock by the bucket. The bucket is mounted on stands secured to a carriage moving along a telescopic boom by means of cable winch.EFFECT: increased performance, reliability and expanded process efficiency of rock breaking with different degree of strength and adhesion.3 dwg

echanical stemming for implementation of output charging technology in form of blast hole or bore hole during drilling and blasting operations (versions) // 2634131
FIELD: blasting.SUBSTANCE: mechanical stemming is made in the form of a wedge-shaped shutter, which includes an outer sleeve with sliding structures and an element in its cavity with an outer wedge surface, at least one interacting with the inner surfaces of the sliding structures of the sleeve facing it. In the above-mentioned elements of the gate valve, technological channels are constructively formed, which are functional means for locating the conductors of the initiation pulse of the detonator. Technological channels are spatially arranged with the possibility of outputting the free ends of the said conductors beyond the sleeve to the mouth of the outlet. The sleeve is formed with an end surface facing away from the mouth, which is functionally a stop surface for providing an external dynamic effect on this stop surface along the axis of the hub during the wedging of its sliding structures while ensuring that this bushing moves relative to the element with at least one wedge surface. The element with a wedge surface is equipped with a construction-technological locking-and-measuring device, which is mechanically connected in the axial direction with this element. The said locking-and-measuring device is provided with structural and technological reference elements and is functionally a means for determining the position of the regulated installation of the spacer from the production mouth as well as the means of connection of the element to a wedge surface with a fixed base structure for effecting fixation of said element during the wedging of the sliding structures of the sleeve.EFFECT: increased effectiveness of stemming fixing.6 cl, 5 dwg
Blast-hole pressure gas generator, cartridge for manufacturing blast-hole pressure gas generator (versions), device for filling cartridge with fuel, method for manufacturing blast hole pressure gas generator immediately before use and method for loading gas generator into blast hole (versions) // 2633606
FIELD: machine engineering.SUBSTANCE: gas generator comprises a tubular body with a closed bottom and an open opposite end closed by a plug used for installation of an igniter, as well as an oxidant and fuel which is in mixed state inside the body. The body of the tubular shape from the side of the open end is provided with an outer screw thread, the plug is made in the form of a cap or cover with an inner screw thread for screwing it onto the body, at that a circular projection is made inside the cap or cover on its bottom surface, at least partially deepened in the cavity of the body open end and adjoining to the inner wall surface or enclosing the body open end for sealing the body cavity. The igniter is fixed on the cap or cover with output into the body cavity in the center of the annular projection of its working part which is coated or covered with material resistant to the action of fuel.EFFECT: increased transportation and storage safety.20 cl, 7 dwg

Pneumatic striker mechanism // 2633005
FIELD: machine engineering.SUBSTANCE: mechanism includes a cylindrical body with outlet channels and a bushing installed therein, a stepped hammer with a rod and a main portion, a through hole and a bushing in the rod portion with a channel-groove dividing body cavity into idle stroke chamber from a shank side and a circular working one, a circular flange with channels for air supply from a network chamber rigidly fixed relative to the circular flange of the rod which is constantly located in the hammer through-hole and interacting with the channel-groove of the bushing, the working tool with the shank portion, a circular distributing chamber communicating on one side with the network chamber by channels for air supply of the circular flange and on the other side with the circular working chamber by means of a circular throttle channel, at that the rod is installed for periodic communication depending on the position of the stepped hammer, the circular distributing chamber and the idle chamber therebetween. The circular throttle channel is formed by channel-grooves or channel-flats with variable cross section along the height made on diametrically opposite sides of the rod portion of the striker.EFFECT: reduction of the air back pressure in the idle chamber and circular distributing chamber of working stroke by adjusting the amount of air supplied in the chamber, thereby economy of the device is increased.2 cl, 4 dwg

Electric pulse drilling bit // 2631749
FIELD: mining engineering.SUBSTANCE: electric pulse drill bit comprises a grounded and high voltage bits coaxially disposed and separated by a high-voltage continuous isolator, the high-voltage bit is made with side washing windows, and the gap between the grounded and high-voltage bits in which the high-voltage solid isolator is installed is greater than the inter-electrode distance between the unipolar electrodes in the bottomhole portion of electric pulse drill bit. The grounded bit is equipped with grounded rod electrodes evenly located in the bottom part of the electric pulse drill bit, between each pair of which the lower ends of the high-voltage rod electrodes are equidistant from them. The upper ends of the electrodes are attached to the cylindrical part of the high-voltage bit over its side flushing windows. The surfaces of grounded and high-voltage rod electrodes farthest from the axial line of the electric pulse drill bit are located at the same distance from this axial line.EFFECT: increased efficiency of drilling.3 cl, 6 dwg, 1 tbl, 1 ex

Hydraulic hammer // 2631463
FIELD: construction.SUBSTANCE: hydraulic hammer comprises a housing, in which an impact mechanism, an axle box with a working tool located therein, an upper elastic buffer for positioning and damping the vibrational loads of the impact mechanism and a lower elastic buffer for positioning and damping the vibration loads of the axle box are mounted. Between the housing and the axle box, at least one female part is mounted, fixing and positioning the axle box relative to the housing. The inner surface of the female part and the outer surface of the axle box are made cone-shaped, tapering upward or downward.EFFECT: increased reliability, reduced vibration and impact loads transmitted from the axle box to the hydraulic hammer housing, improved maintainability, as well as ensuring the fixation and positioning of the axle box relative to the hydraulic hammer housing.6 cl, 1 dwg

Adjustable compression-vacuum shock machine of double action // 2630931
FIELD: construction.SUBSTANCE: machine comprises a housing and a striker arranged therein, forming the upper chamber and the lower chamber, a vacuum compressor located at the upper part of the housing, connected to the upper chamber and comprising at least one pair of centrifugal compression-vacuum mechanisms mounted oppositely to each other with suction openings connected to the disc and having a common channel through an opening in this disc, which forms chambers above and below the disc in the upper housing part. The chamber above the disc is connected to the atmosphere, and cuts off said upper chamber and the chamber under the disc from the atmosphere. Said centrifugal compression-vacuum mechanisms are electrically connected to a three-position switch electrically connected to the current source, a receiver connected to the upper chamber, a magnetic lock for the striker, installed in the upper chamber, and a working tool. The lower chamber is connected to the atmosphere. The receiver is located in the housing between the upper chamber and the vacuum compressor and is connected to the upper chamber through the openings of the centering disk separating the receiver from the upper chamber, and to the vacuum compressor - through the openings in the mounting disc separating the vacuum compressor from the receiver. The magnetic lock for the striker is connected to a regulator located in the receiver and made with the possibility to change its length.EFFECT: ensuring the possibility to expand the energy of impacts and the frequency, to avoid pressure losses during the flow-over from the receiver to the upper chamber, to reduce the machine dimensions by width, and to work in hard-to-reach places.3 cl, 1 dwg

Cutting device for feeder-crusher (versions), feeder-crusher, device for keeping the cutter and method of connecting the cutyet to mining machine // 2630337
FIELD: mining engineering.SUBSTANCE: feeder-crusher comprises a frame forming a receiving end and a discharge end, a conveyor attached to the frame for moving the raw material from receiving end to discharge end, and a crusher attached to the frame between receiving and discharge ends for processing raw materials. Crusher includes a holder having an opening for cutter, running along the longitudinal axis of holder, and an opening for a pin, located across the opening for cutter and crossing the cutter holding device. The cutter has a cutting part, a bar, and a recess made in the bar. Wherein, when the bar is held in the opening for cutter, the said recess is aligned with the pin opening. The holding device is designed to hold the cutter in holder and comprises a pin, freely disposed in said pin opening and recess with engagement with cutter, and an integral plug inserted into the pin opening and having a dimension that provides its resilient engagement with holder. In this case, the plug substantially insulates and holds the pin in said pin opening. The said pin is located in the pin opening in unsecured condition.EFFECT: protection of connecting element against corrosion and easy replacement of cutter.38 cl, 9 dwg

Two-piston air hammer // 2630331
FIELD: machine engineering.SUBSTANCE: device includes a housing with two coaxially located cylindrical cavities separated by a partition with an opening, two pistons located within the cylindrical cavities having cavities of driving and idle strokes, a shank coaxially arranged with the pistons, an air distribution unit with air supply and air discharge channels of equal diameter and a working slide valve in the form of a hollow cylinder, installed in a cylindrical cavity, with the formation of chambers. The housing is equipped with a compressed air supply chamber. One of the pistons is made hollow with a hollow rod, and the second piston is made solid with two solid rods. One of the rods installed in the cavity of the other piston and the opening of the partition between the cylinders. The second rod is mounted coaxially to the first rod on the opposite side of the piston and is provided with a pusher disposed at its end. The rod with the pusher is made of variable cross-section and is installed with a gap with the possibility of moving in the cavity of the working slide valve. The slide valve is provided with a supply and a discharge annular grooves, wherein the supply groove is connected to the compressed air supply chamber and to the cylindrical cavities of the pistons by channels, and the discharge groove is connected to the atmosphere by air discharge channels. The grooves are located at a distance from each other equal to three channel diameters, the width of the grooves is equal to the diameter of the channel, the distance between the channels in the area of the working slide valve is equal to one channel diameter, and the stroke of the working slide valve is equal to two channel diameters.EFFECT: increased operational characteristics and performance reliability.2 cl, 3 dwg

Two-piston air hammer // 2630325
FIELD: machine engineering.SUBSTANCE: device includes a housing with two coaxially located cylindrical cavities separated by a partition with an opening, two pistons located within the cylindrical cavities having cavities of driving and idle strokes, a shank coaxially arranged with the pistons, an air distribution unit with air supply and air discharge channels of equal diametre and a working slide valve in the form of a hollow cylinder, installed in a cylindrical cavity, with the formation of chambers. One of the pistons is made hollow with a hollow rod, and the second piston is made solid with a solid rod installed in the cavity of the other piston and the opening of the partition between the cylinders. The second piston is equipped with a command slide valve of cylindrical shape installed coaxially to the rod on the opposite side of the piston, wherein an axial channel, an exhaust annular groove, an air supply groove with openings communicating with the chambers of the working slide valve cavity and with the atmosphere by the channels are formed. The working slide valve is mounted with the possibility of axial movement along the command slide valve and is equipped with a supply and discharge annular grooves. The supply groove is connected with an axial air supply channel and cylindrical cavities of the pistons by the channels, and the discharge groove is connected with the atmosphere by air discharge channels and channels with cylindrical piston cavities. The ducts are located at a distance from each other, equal to three channel diametres. The width of the grooves is equal to the diametre of the channel. The distance between the channels in the working slide valve zone is equal to the diametre of the channel. The stroke of the working slide valve is equal to two channel diametres.EFFECT: increased operational characteristics and performance reliability.2 cl, 4 dwg
ethod of determining location of bottom boundary of toros and hummock consolidated layer in electro-thermal drilling // 2630017
FIELD: oil and gas industry.SUBSTANCE: electro-thermal well drilling is performed in ice along with recording on a computer or a drilling speed logger. Simultaneously with drilling, suction of the meltwater heating crown from the edge of the working zone is carried out and then it is supplied onto the ice surface to the location of the drill operator. The operator visually monitors the presence and intensity of the fluid flow, recording the transition from the air-water mixture to the constant fluid flow by marking the drilling speed in the computer register by pressing a special button. The dependence of the drilling speed is compared with the operator's mark on the presence of a constant flow of water, taking into account the time of water passing from the well through the hose to the outlet of the pump. The change in drilling speed, corresponding to the transition of a drill from dense ice to loose ice or the void closest to the mark, is defined as the drill exit from the consolidated layer and the depth of the bottom boundary of the consolidated layer is established.EFFECT: determination of the depth of the bottom boundary of the consolidated layer for non-core drilling.2 cl

Impact device // 2629723
FIELD: construction.SUBSTANCE: impact device comprises a housing, a striker located in the housing and dividing it into chambers of working stroke and idle run, an air distribution mechanism comprising a cover, a pre-valve cavity, valves, command chambers connected with command channels to the chambers of working stroke and idle run, intake channels and an exhaust port. A sub-valve bushing is located in the cover. In the annular cavity between the sub-valve bushing and the cover there is a separating bushing with guide axial grooves for valves and valves made in the form of annular sectors with the possibility of independent axial movement. Flanges arranged in the pre-valve cavity are made on the lower end of the valves. The valves form with their upper end form in the annular cavity command chambers connected with command channels to the chambers of working stroke and ide run.EFFECT: increasing the impact power of the device.3 dwg

Cutting insert of tangential rotary cutter // 2629507
FIELD: mining.SUBSTANCE: cutting insert of the tangential rotary cutter includes the cutting step and the fastening step. In this case, the fastening step is conical, and the cutting step is in the axial section according to the law of quadratic function with surface reinforcement by indenters, made of composite wear-resistant material located in a plan along the Archimedes spiral.EFFECT: increased efficiency and tool life.2 dwg

Extracted depth reference benchmark // 2627503
FIELD: mining engineering.SUBSTANCE: extracted depth reference benchmark includes an estuarial tube, base and locking plugs connected to the indicators by steel cables. In this case, the estuarial tube is made of galvanized spring material along the diameter of hole, has a slot for its easy insertion into hole, protrudes on the 50-70 mm from hole to the level of fixing the worked out space in light and is the reference point for roof displacement for base and locking indicators. Base and locking plugs are made of spring wire, rolled up in the form of spirals with diameter D=8-10 mm with diluted ends of length L=12-14 mm at an angle α=145-155°, directed into the depth of hole. At the same time, the carrier steel cables of displacement indicators are pivotally mounted on the lower part of the spirals, keeping them on weight; and on the upper part ropes for extracting the plug from hole are mounted, the lower ends of which are fixed on corresponding displacement indicators diametrically opposite to the carrier cables, and have different colours. Displacement indicators are performed from the tubes entering into each other in the sequence of open-casts arrangement, have measuring scales, and, at the ends, openings for releasing and securing ends of cables and adjusting the position of indicator relative to estuarial tube.EFFECT: simplification of measurements and design of reference benchmark and possibility of its reuse.2 dwg

Device and method for monitoring roof separation layer on basis of fiber grid in mining // 2627051
FIELD: mining engineering.SUBSTANCE: device for monitoring roof separation layer on the basis of fiber grid consists of a perpendicular measuring barrel (1) installed in hole drilled in the roof, and an layout case of equipment layout (19) connected from below to the perpendicular measuring barrel (1). Mounting brackets (6) of guide roller and mounting brackets (7) of roller with steel tape are symmetrically mounted on the upper part of layout case (19), and socle beams (15) of constant strength are symmetrically mounted on the lower part. Tension springs (16) are installed on opposite ends of socle beams (15) of constant strength. The other ends of two tension springs (16) are connected to steel wire rope (3). Steel wire rope (3) passes through rollers (17) with steel tape and guide rollers (18), and extends outward from fair-lead (2) of steel wire rope at the top of perpendicular measuring barrel (1). End head of steel wire rope (3) is connected to anchor head (5). Fiber grids A (8) and fiber grid B (9) are symmetrically mounted on the left sides and right sides of the socle beams (15) of constant strength. Fiber grids A (8) and fiber grids B (9) exit outwardly from fiber fair-lead (10) through the same fiber (12) and are connected to the fiber connector (14). Also, method for monitoring roof separation layer on basis of fiber grid in mining operations using a device for monitoring roofing separation layer on basis of fiber grid in mining operations.EFFECT: increasing safety due to higher monitoring efficiency and measurement accuracy.7 cl, 7 dwg

ethod of wear-resistant indexable pick manufacture // 2626481
FIELD: mining engineering.SUBSTANCE: hardening of mounting is carried out immediately after its production by hot stamping from cylindrical work which, in order to increase the intensity of metal deformation in head part of mounting, is pre-equipped with a facet of 0.38d to 0.44d length at an angle of 5.5β up to 7β, where d - is the diameter of work, β - is the angle of inclination of the side surface of stamp. Reinforcement of mounting with a carbide insert is made by cold pressing.EFFECT: increasing the hardness of pick mounting surface in the area of its contact with destroyed rock, which increases the service life of pick.5 dwg

Device for measuring ground deformation // 2625616
FIELD: measuring equipment.SUBSTANCE: device for measuring ground deformation relates to the field of measuring equipment, particularly to the method of measuring the relative displacements of two points on the ground surface or selected areas of the engineering and construction structures, spaced at the considerable distances occurring due to exposure to exogenous and natural processes. The device for measuring the ground deformation consists of a rope 1 fixed to the anchor 2, which, having passed the route bends, falls onto the shaft 4 of the motor 5 through the mobile unit 3 with a large reduction ratio and the angle sensor of the shaft rotation. The motor is fixed to the housing base 5 of the device measuring system. There are always a few rope turns on the motor shaft 4, that is provided by the braked buffer coil 6 with a sufficient rope reserve capable of measuring even with significant anchor movements. The device for measuring the rope tensile force 7 is introduced in the system, by which the rope tensile force is measured. Voltage from the device for measuring the rope tensile force 7 is input to the signal processing unit 8, the output of which is connected to the input of the motor controlling unit 9, where the difference signal is formed between the digital signal from the device for measuring the rope tensile force and introduced into its memory with a value corresponding to the particular threshold force value F0 - the predetermined small tensile force. The outputs from the unit 9 are connected respectively to the motor 5 and the signal converting unit 10 from the motor controlling unit by the value of the anchor movements. Calculation of the anchor movement values is carried out in the output signal converting unit 10 from the unit 9 by the value of the anchor movements. An encoder 11 is introduced into the measuring circuit to obtain an independent information about the anchor movements, connected to the input of the signal converting unit 12 from the encoder by the value of the anchor movements. The outputs of the units 10 and 12 are connected to the input of the signal comparing unit 13, in which conclusion on the danger degree of the developing processes is made based on the data analysis of the deformation values and due to the geological features of the observation object.EFFECT: improving the measurement accuracy.1 dwg

aterials stress state evaluation method // 2625360
FIELD: measurement equipment.SUBSTANCE: method involves samples testing till destruction. Samples are produced from the monoliths of the tested material, then they are test for monoaxial tension, compression, and in terms of triaxial stress state. These data are used to build a strength passport with envelope of Mohr's circle of stress limit. Main crack surface roughness (Rz) value is measured for each type of rock stress state based on which the roughness (Rz) change nomogram is constructed for the material destruction main crack surface, depending on the main normal stresses value σin the destruction crack zone. Then, a sample is taken from the area of the main crack of the building structure tested material destruction, and there roughness value Rz1 is measured of the destruction main crack surface through which, using a nomogram obtained, the value is determined of the maximum normal stresses σn.r. The point of the tested material limit state is determined, for which in the vertical axis of the material strength passport a value is set of the maximum normal stress acting in the zone of material destruction of σn.r. and from this point a perpendicular is put to the envelope of Mohr's circles of stress. Using the material limit state point, a Mohr's circle of stress is built for the tested sample of the destroyed structure element, and according to it, principal normal stress values σ2p and σ1p are determined and the material stress state type is defined in which the structure element was destroyed.EFFECT: improved accuracy of stress state assessment of materials that make up the structure, improved reliability of its operation.3 cl, 4 dwg

ethod of determining the dynamics of the processes of the deformation of the rocks of the mountain massif and the device for its realisation // 2624746
FIELD: mining.SUBSTANCE: method involves drilling wells and holes in underground mines. A measuring set with a video endoscope fixed at its end and a perspective ruler fixed at a distance of the wide-angle visual angle of the video vision of the video endoscope is inserted into the well. The exact position of the cracks is determined by the depth of the well and its approximate width, the location of the cracks found in the well is fixed along the length of the rod, and the video endoscope and the prospective ruler determine their approximate width, fix them in the observation log, cracks are classified by width. For each class, a measuring cone-probe with a certain step of the measuring rifled steps and their diameter is selected. Cone-probe, anchored on the rod, is injected into the mouth of the measured crack and on the diameter of the steps and their number, depth move hidden areas in rift, define the breadth and depth of its disclosure. Repeated cycles of measurements are carried out according to the classification of previously measured cracks and from the changes in crack opening width determine the dynamics of rock mass deformation processes. The device contains a measuring probe, made in the form of a removable cone-probe, in which completed mounting hole for fastening to the typesetting of the measuring rod, and by forming a cone cut measuring steps, the rod is a rod set with elements of articulation with each other. Measuring steps threaded cone-probe performed with step on its axis in ascending order from h=0.5 mm, with diameters from stages d=1 mm in width measured cracks. At the end of the set of rods, a video endoscope is installed, and a perspective ruler is attached at a distance of the wide-angle visual angle of the video endoscope capture.EFFECT: increasing the accuracy of measurements.3 cl, 5 dwg

Submersible meter of rock destruction energy efficiency // 2624064
FIELD: mining engineering.SUBSTANCE: submersible meter of rock destruction energy efficiency includes a hydraulic cylinder, loading piston with a rod equipped with an indenter. In this case, the hydraulic cylinder contains an intermediate rod connected to two pistons: external and internal, which divide the hydraulic cylinder into four cavities: inlet, middle, pressure and power. In this case, the middle cavity has an outlet to the atmosphere through a window in which a pusher is placed interacting with a stop located on the intermediate rod of the hydraulic cylinder and connected to a movable wedge which is in communication with the hydraulic cylinder body by means of a spacer spring. Between the pressure and the power cavity, hydraulic communication is provided through a channel.EFFECT: increasing the accuracy of determining the energy efficiency of rock destruction, simplifying the operator's work during research.1 dwg

Pneumatic hammer // 2623936
FIELD: machine engineering.SUBSTANCE: pneumatic hammer contains a handle with a sleeve forming an air cushioning chamber, a casing, a trunk with a working tool installed in the casing, with a hammer and an air supply pipe and an air distributor. The air supply pipe is made stepped with a large step, by means of which it is fixed in the barrel and with a small step installed in the sleeve with a possibility of movement and made with a closed end and radial holes on its side surface for periodic communication of the air distribution unit with the compressed air network.EFFECT: simplifying the design, increasing the ease of use and efficiency of vibration damping.3 dwg

Connected coal-cutting device // 2623381
FIELD: mining.SUBSTANCE: in one of the longwall coal-cutting machine embodiment it contains the first section of the carrier with mounted thereon the first cutting arm and the second section with mounted thereon the second cutting arm. The first and the second sections of the carrier are connected by the hinged joint. The longwall coal-cutting machine device is mounted on the rail. The retaining shoe extends from the hinged joint and contains at least one retaining element, which engages with the rail. Thus longwall coal-cutting machine forms the transverse axis, extending generally from the first cutting arm to the second cutting arm, the retaining shoe is made with ability to move perpendicularly to the transverse axis.EFFECT: improved longwall coal-cutting machine guidance according to the operating horizon.23 cl, 16 dwg

Protecting cover for wear protection (versions) // 2622941
FIELD: mining.SUBSTANCE: protecting cover for toolholder unit wear protection, suitable for using at basing part of the toolholder unit comprises at least two wall sections angled toward each other for covering surface areas of the basing part, wherein these wall sections are united with each other in a single whole. The protecting cover for wear protection is formed as a metal molded article or a metal part obtained by plastic deformation. At least a part of wall sections verge into each other via rounded transitions. An opening is positioned at the wall section formed as a front wall, designed to receive the tail cutter head.EFFECT: efficient and long lasting protection against toolholder unit wear.21 cl, 10 dwg
Hydro-rifting device // 2622275
FIELD: mining.SUBSTANCE: device comprises a housing which is separable along its longitudinal axis with annular cavities at its ends, a mechanism for returning them to the inoperative position located inside the detachable body, an elastic chamber, and expanding inserts disposed between the parts of the detachable housing with guide grooves, protrusions of the expanding inserts moving along them and interacting with them and elastic chamber, end sealing clips with cylindrical flanges with a working agent connection into the elastic chamber and the displacement connection of air from this chamber. Between the nozzles there is a working agent volume limiter with a housing with a longitudinal slot comprising a sleeve, interacting with it by means of a control element, a spring-loaded pusher contacting the control element and a persistent element interacting with it. The control element is installed in the longitudinal slit of the working agent volume limiter housing and contacts the inner wall of the elastic chamber. One end of the working agent volume limiter is connected to the supply connection of the working agent by means of a pusher mounted with the possibility to move along the axial channels of the housing and the connection and provided with grooves for passing the working agent, and the opposite end of the limiter housing is freely located in the channel of the air outlet and contacts the bushing. The last and adjacent end of the housing have holes for the working agent passage. The elastic chamber is provided with longitudinal corrugations, the distance between diametrically located points of the corrugations in the plane of the expanding inserts is less than the distance between the analogous points relative to the longitudinal axis of the housing parts, and the control element located in the plane of symmetry of the expanding inserts contacts the inner surface of the longitudinal corrugations of maximum diameter. The guide grooves and the expanding insert protrusions installed in them have a semi-cylindrical shape.EFFECT: hydro-rifting device allows to increase the service life of the camera several times while maintaining the working stroke of the punch.3 cl, 4 dwg
Pyrotechnical composition for solid bodies thermal destruction charges // 2622127
FIELD: blasting.SUBSTANCE: pyrotechnic composition for solid bodies thermal destruction charges contains, wt %: aluminium powder 22-32, ferric oxide 54-60, synthetic rubber 5-6 as a binder, fluoroplast-4 2-3 and fluororubber SKF-32 2- 3. Powders of the thermal basis of aluminium and iron oxide composition are limited to a size in the range of 20-50 mcm. Introduction of halogen-containing components (fluoroplastic and fluorine rubber) into the pyrotechnic composition ensured the activation of compacted charges combustion, with improved flammability and stable combustion for a safe speed of solids thermal destruction.EFFECT: solution enables composition manufacturability of long charges and increased functionality when used as intended.1 tbl, 5 ex
Hydro-rifting device // 2622065
FIELD: mining.SUBSTANCE: hydro-rifting device comprises a housing which is separable along its longitudinal axis with annular cavities at its ends, a mechanism for returning them to the inoperative position located inside the detachable body, an elastic chamber, and expanding inserts disposed between the parts of the detachable housing on the side of the plane of the connector and interacting with them and elastic chamber, end sealing clips with cylindrical flanges with a working agent connection into the elastic chamber and the displacement connection of air from this chamber, the working agent volume limiting located between the fittings, which has contact with the inner wall of the elastic chamber. One end of the working agent volume limiter is connected to the supply connection of the working agent and the opposite end of the limiter housing is freely located in the channel of the air outlet. The device is equipped with a wedging unit with a drive for its longitudinal movement fixed to one of the split housing parts. Bevels having contact with the reciprocating bevels on the wedging unit inner surface are made on the outer surface of one of the body parts. The split housing parts are offset relative to the expanding inserts symmetry plane, and the outer surface of the unit has a shape that allows the unit to enter the wellbore. The drive of the wedging unit longitudinal movement is made in the form of a mechanical nut-screw transmission, the nut is made in the unit end surface and the end part of the screw is provided with an annular cannelure, and at the end of one of the sealing rings, the gripper is rigidly fixed, on which the guide groove is coaxially aligned with the screw, the groove is designed to compensate the transverse displacement of the screw end part relative to the gripper.EFFECT: device allows to increase the service life of the camera several times due to increasing the working stroke of the punch.4 cl, 5 dwg

Bore bit blade insert // 2619953
FIELD: mining.SUBSTANCE: bore bit blade insert comprises an insert body, blade and rear edge. The rear edge of the plate is made on the surface ensuring blade sharpening from its outer rim to the inside rim decreasing in such a way that the angle between the insert rear edge and the blade points guidepath line remains constant.EFFECT: possibility of the insert rear edge contact during its interaction with the rock is excluded and provided rock free cutting process along the entire blade insert length.1 dwg

Control method of the rock mass stress condition in the vicinity of working // 2618778
FIELD: mining.SUBSTANCE: scanning is performed by ultrasonic stationary noise signals with the average equal to zero mass sections, located between parallel wells along its depth. The ultrasonic signals reception is carried out by two acoustic transducers, which at each of the scanning sections are located symmetrically relatively to the axis of the emitted acoustic transducer radiating pattern main lobe. Measure the correlation intervals and the cross-correlation coefficient of the signals from the receiving transducers outputs, increasing its clamping force to the well wall until the measured correlation intervals increase is stopped. The values of the measured cross-correlation coefficient are fixed after reaching the specified moment in each section and the graph of this coefficient versus the depth is plotted. The depth, from which the cross-correlation coefficient obtains the constant value, is taken as the abutment pressure zone limits, and the depth, from which the cross-correlation coefficient is less than the specified value, is taken as the stress relief zone limit. The depth, at which the maximum value of the cross-correlation coefficient takes place, corresponds to the maximum stress in the abutment pressure zone.EFFECT: determination of the stresses spatial distribution in the vicinity of the mine workings and the abutment pressure zone maximum depth.3 dwg

ethod of management of the mountain combine with planetary-disk executive body // 2618630
FIELD: mining.SUBSTANCE: according to the method based on the control of the load current of the main engine executive body of the combine, set the maximum value of the current consumed by the main engine of the executive body of the combine harvester and the speed of delivery for slaughter. Compare the current setpoint with the actual value determined by the sensor current, if the actual value of the main engine load current executive body greater than a predetermined, reduced speed of the combine feed for slaughter if the main engine of the actual value of the load current executive body less than the specified, it is determined the actual value of the feed rate harvester for slaughter, compare it with the set flow rate and compared values do not match the speed of the combine is controlled feeding. Control of the load current is carried out on all of the drive motors cutter executive body of the combine, thus regulate the speed of the combine feeding in excess of load current in at least one drive motor of the executive body. When you reach the desired flow rate change is carried out step by controlling the cutting speed burin portable drives.EFFECT: invention allows for automatic control of the drive mechanism for moving and portable drives rotation incisal heading-and-winning machines with planetary disk executive bodies, to ensure the rational values of the cutting parameters, and reduce specific energy consumption of the process of destruction of the rock mass.2 cl, 2 dwg

Automated operations of mining machine // 2617498
FIELD: mining.SUBSTANCE: embodiments of the present invention relate to automated operations of mining machines, such as mining machines of continuous action for the exploitation of solid mountain rocks. The methods and the system of automatic control of mining tunneling machine of continuous action. One method involves automatic controlling of at least one actuator for setting the platform carrying the shearer head to a predetermined position for start-up, automatic control of at least one actuator for extending the platform to the face being exploited before entering the shearer head into contact with the face being exploited and the excess of at least one indicator of physical force between the shearer head and the pit-face exploited, of a predetermined value, and automatical saving of at least one coordinate of the face being exploited on a computer readable medium, wherein at least one of the coordinates is based on the parameter of at least one actuator when the indicator exceeds the predetermined value.EFFECT: invention provides higher safety and efficiency of work.122 cl, 26 dwg

Stabilometer // 2616946
FIELD: mining.SUBSTANCE: stabilometer for testing the rock samples contains a sample chamber, a load cylinder with a piston, a pressure sources connected to the chamber and the cylinder, and stabilization loading slide valve, mounted in the piston and fixed by a threaded sleeve at the base of the cylinder. There is the cavity in the piston, where the support sleeve is located, connected to the slide valve and contacting the piston shoulders. There is the drain hole in the load cylinder, where the shut-off control valve with electrical motor is installed, it is electrically connected with the electronic extensometer, the extensometer housing is fixed inside the loading cylinder on the shoulders, and the measuring rod of the extensometer brought out through the hole in the shoulders to the cavity of the piston and contacting the bearing sleeve.EFFECT: improved accuracy of rocks dimensional tests by eliminating inaccuracy, connected to the potential elastic power of the working fluid when it is compressed, and reduction of negative impact of the cylinder, piston and plunger device siltation.1 dwg
ultipoint sealing device of auxiliary high-pressure water jet for cutting mechanism used in mining equipment // 2615546
FIELD: mining.SUBSTANCE: multipoint sealing device of the auxiliary high-pressure water jet of the cutting mechanism comprises a water conducting housing and a water conveyance hose, connected in series between the cutting shaft and the cutting-providing tank of the cutting mechanism used in mining equipment. The input water intake channel is configured radially across the water conveyance housing, the water-conducting hose and the cutting shaft, and respectively communicates with the inlet water opening for the cutting-providing tank and the main flow channel of the cutting shaft. Two sides of the input water-intake channel are respectively provided with the first sealing O-shaped ring, the gear combined sealing, and the second sealing O-shaped ring. The water-conductive housing is made with the drain gutter, and the cutting-providing tank is made with the water outflow channel communicating with the drainage gutter.EFFECT: sealing with long service life and increasing the efficiency of the auxiliary cutting with the high-pressure water jet.3 cl, 3 dwg

Electrical discharge method for rock destruction // 2613678
FIELD: mining engineering.SUBSTANCE: electric discharge method for rock destruction may be used in mining engineering and construction industries for strong rocks in rock quarries and slabs, border stones, a variety of construction stone elements. For all planes of spalling, including at the bottom of the plantar surface of each block there are formed the extended electrical breakdown channels by high-voltage discharge with an energy insufficient for breaking rock. For the formation of each channel of the electric rock breakdown, one shall provide for at least five high-voltage pulses. Bottomhole ends of the rod electrodes are made in the form of toothed wheels, or wheels with sharp edges. Separation of the rock is carried out by applying of high voltage pulses with high energy of each pulse, or known methods.EFFECT: invention improves the efficiency of destruction of rocks, improving the quality of surface spalling, including the bottom sole that increases the output of blocks of hard rock and other products of specified form.2 cl, 3 dwg

Linear pan and longwall cutter // 2613659
FIELD: machine building.SUBSTANCE: invention relates to longwall cutters and, more specifically to all-movable face conveyer linear pan. Linear pan section comprises front rail, mined space side rail opposite to front rail and conveyor pan between face rail and mined space side rail. Front rail has horizontal upper surface by upper surface height and with upper surface width, inclined loading surface passing in mining face and ground surface direction and arranged at oblique angle relative to upper surface, loading surface located on loading height and having loading surface width, loading surface width, and cavity for material made in front surface under loading surface and recessed in mined space direction.EFFECT: technical result is improving of both mining combine and cut material loading characteristics.23 cl, 10 dwg

ethod for controlling stress-strain state of rock massif // 2613229
FIELD: mining engineering.SUBSTANCE: invention relates to mining engineering and is intended to control the stress-strain state (SSS) of the rock mass, including those having a block structure, and can be used to estimate and forecast the stability of mine workings in the manufacture of mining operations. The way in which the controlled area on the well is being drilled from underground mines in the contour direction of working space. A bleeding core shall be selected, the analysis of which determines the size, location of the natural units in the rock mass and the boundaries between them. One shall carry out the test of bleeding core selected for each type of rock at the borehole depth and determine the value of the maximum allowable elastic deformation of this type of rock. One shall mount benchmarks along the longitudinal axis of the well within the natural blocks. Benchmarks mount places shall be selected in proximity to the boundaries of the natural blocks, and in the absence of the latter - after a certain interval of the well depth. The far benchmark shall be fixed near the contour of the working space. One shall measure the value of displacements between adjacent benchmarks along the longitudinal axis of the well. In addition, one shall measure the values ​​of the displacement of each benchmark along the longitudinal axis of the well relative to the conductor, which is used in calculating the value of deformation of the rock mass, being rigidly fixed to the wellhead, for which each of the benchmarks is equipped with an autonomous flexible coupling, such as stainless steel string, one end of which is fixed on a benchmark and the other end is brought out from the measuring unit mounted on the conductor and is connected to a tensioning device for continuous tensioning of flexible connection with the tensioning device is movable along it. After measuring the displacements, it is the basis for calculation the value of deformation of rock massif and deformations - for the parameters of elastic or inelastic deformations, which are to evaluate SSS rock massif changes at the controlled area. Moreover, the parameters of elastic or inelastic deformations of natural blocks of rock massif shall be determined by comparing the obtained values of deformations of the rock massif to the maximum allowable size of the elastic deformation of this type of rock. Then one shall fix their localization zones, define the parameters of these zones. A beginning of the active phase of rock deformation in zone of inelastic deformation and its duration, up to the collapse of a near circuit massif into worked space, shall be set on those benchmarks on which one records values of the displacement with respect to the conductor with continuous speed. The value of maximum allowable displacements of benchmarks at which there is a collapse of near circuit massif shall be determined when the flexible connection failure of any of the benchmarks, and it is used to forecast future collapses of adjacent roks to the waste space in the subsequent monitoring of SSS on working benchmarks.EFFECT: invention provides increased positioning accuracy of localization of deformation zones.1 dwg

aterials mechanical processing device and method by milling and drilling // 2610474
FIELD: technological processes.SUBSTANCE: group of inventions relates to materials mechanical processing method and device by milling and/or drilling, particularly for removal of hard rocks, concrete, minerals or coal. Device includes tool drum accommodating several tool shafts with machining tools attached to their ends, projecting from tool drum. At that, tool shafts can be driven into rotation. Tool shafts driving element and tool drum can rotate relative to each other, wherein drum carrying device can displace relative to material using displacement device. Using control device tool carrying device displacement speed can vary relative to material and tool drum speed. To avoid occurrence of critical operating conditions device is equipped with, at least one measurement transducer for measurement of natural translational vibration and/or, at least one measurement transducer for determining tool drum angular oscillations, and control device, which contains at least one vibrations analyzing module, using which vibrations range can be defined during analysis of oscillations, and at least one controller module, using which rotation speed and/or relative speed are controlled or adjusted as oscillations function defined by analysis module. Method of materials machining by means of device.EFFECT: improving mechanical processing device.25 cl, 3 dwg
ethod for breakdown rocks and ores by hydroexplosion // 2607829
FIELD: mining.SUBSTANCE: invention relates to mining industry, in particular, to blasting of rocks and ores. Method of breakdown of rocks and ores by hydroexplosion involves drilling of wells, formation of explosive charges, placing explosive charges in well in a shell, filling clearance with water, initiation and blasting of charges. Formation of distributed packaged explosive charges is performed outside well, reinforced on two threads of detonating cord, charge is placed into a shell, wherein in bottom part of well to lower cartridge of charge is fixed a load – metal cylinder with diameter smaller than well diameter, shell is filled with water.EFFECT: higher efficiency of hydroexplosion, improved quality of crushing rock mass and reduced consumption of explosives.1 cl, 1 dwg

Slow rotation of cutter-loader drum // 2607134
FIELD: machine building.SUBSTANCE: group of inventions relates to cutter-loaders. Cutter-loader includes a cutting drum with multiple cutting teeth arranged on the drum and a mechanism of the cutting drum rotation. Mechanism of the cutting drum rotation includes a power supply source, a cutter motor, a switch and a drive with controlled frequency. Switch has the first and the second states. First state electrically connects the power supply source and the cutter motor for operation of the cutting drum at the rate of cutting, a the second state electrically connects the drive with controlled frequency and the cutter motor for operation of the cutting drum at the rate of servicing, lower than that of cutting.EFFECT: technical result is provision for rotation of the cutting drum of the machine at the rate of servicing.20 cl, 4 dwg
 
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