Bench for research of parametres in chain gate for ore pass

FIELD: testing equipment.

SUBSTANCE: invention is related to benches for execution of experimental research in laboratory conditions. Device comprises section of vertically oriented pipe fixed on frame, lower cut of which has fixed circular guide with angle profile in cross section with vertical and horizontal shelves. There is upper ring arranged on horizontal shelf with the possibility of rotation in horizontal plane versus this guide. Ring is equipped with identical welded round-link chains attached along its perimetre, lower ends of which are fixed on another lower ring with the possibility of its rotation in horizontal plane and displacement in vertical plane. On upper ring along its perimetre there are alternating rollers installed with the possibility of their rotation in horizontal and vertical axes and with the possibility of rollers interaction accordingly with horizontal and vertical shelves of circular guide. On lower ring along its perimetre with identical pitch there are rollers arranged in vertical axes with the possibility of their interaction with internal cylindrical surface of jacket fixed on frame, as well as two additional diametrically installed rollers on detachable horizontal axes with the possibility of their interaction with vertically oriented guides of I-section in cross section. Guides are hingedly suspended to frame by their upper ends with the possibility of their rotation in plane passing through axes of additional rollers, to the sides from lower ring and fixation of these guides in turned position versus frame. On upper and lower rings there are rims attached with the possibility to install sections of flexible elements in their chutes and with rims enclosure by flexible elements at the angle close to 360 degrees. At the same time one end of each flexible element is fixed on rim, and the second one is equipped with dynamometre and is kinematically joined to drive. ,. Upper ring is equipped with stop accessory, having possibility to fix upper ring versus circular guide. Cylindrical jacket is arranged with vertical slot cut with the possibility to arrange branch of flexible element coming off lower ring. At least on three round-link chains in area of their fixation to upper ring there are detectors installed, which register value of longitudinal load over round-link chains, and round-link chains with detectors are arranged along perimetre of upper ring at the same distance from each other. In internal cavity of pipe section there is round plate arranged with gap in horizontal plane with the possibility of replaceable weights location on it and interaction with ore sample placed inside internal section of pipe section. Plate, with the help of flexible element, length of which is equal to height of pipe section, is kinematically connected to frame as point of flexible element attachment to frame is allocated along axis of pipe section symmetry. Under lower ring there is container installed on frame with gate valve placed in its upper part with the possibility of ore pass reception and arrangement in container.

EFFECT: provision of possibility in laboratory conditions to detect power and kinematic characteristics of chain gate for ore pass for conditions of bulk ore outlet from ore pass with versions of rotary ring location - upper or lower ones.

4 cl, 6 dwg

 

The invention relates to stands for experimental studies in the laboratory, namely, stands for research of parameters of the chain stopper for ore passes.

The technical result of the invention is the determination in the laboratory force and kinematic characteristics of chain stopper for ore passes to the terms of issue of lumpy ore from the ore passes.

Stand for research of the parameters of the chain stopper for ore passes is characterized by the fact that it consists of the segment attached to the chassis by a vertically oriented pipe, on the lower edge of which is fixed an annular guide with angled profile in cross-section with vertical and horizontal shelves, and rings placed with the possibility of rotation in a horizontal plane relative to this guide and provided with secured at its perimeter with the same step welded kruglozerny chains, the lower ends of which are secured to another ring with the possibility of rotation in the horizontal plane and offset in the vertical plane, while the top ring on the perimeter of installed alternating between a roller with a possibility of rotation in the horizontal and vertical axes and interoperable rollers respectively with the horizontal and vertical the individual shelves of the ring rail, and the lower ring on the perimeter with the same step on the vertical axes of the rollers installed with the possibility of their interaction with the inner cylindrical surface of the casing, fixed to the frame and diametrically located two additional rink on removable horizontal axes, with the possibility of their interaction with vertically oriented guide h-profile in cross section, pivotally suspended from the frame with their upper ends with the possibility of rotation in the plane passing through the axis of the additional rollers in the side of the lower ring and fixing the rails in a rotated position relative to the frame, the upper and lower rings pinned rims with accommodation in their the grooves of the segments of the flexible elements and covering rims flexible elements at an angle close to 360, with one end of each flexible element is mounted on the rim, and the other is equipped with a dynamometer and kinematically connected with the actuator, the upper ring is provided with a locking device to lock the upper ring relative to the ring rail, a cylindrical casing made with a vertical slot cut with the possibility of placing it down with the bottom ring of the branches of the flexible element, and at least three kruglozernyh circuits in the area of their attachment to the top of the ring gauges, registering the magnitude of the longitudinal loading kruglozernyh circuits, and kruglozerny circuit with sensors placed around the perimeter of the upper ring at the same distance from each other, in the inner cavity of the pipe segment is placed with a gap in the horizontal plane round plate with the possibility of hosting a removable cargo and communicate with an internal cavity of the pipe segment of a sample of ore, and the plate with the flexible element, the length of which is equal to the height of the pipe segment, kinematically connected with the frame when the point of attachment of the flexible element to the frame along the axis of symmetry of the pipe segment, below the bottom ring is installed on the frame container is placed in its the upper part of the slide gate capable of receiving and placing in a container of a sample of ore. The sensors can detect tension kruglozernyh circuits or the pressure of their links on the top ring in the places of their charms to him. The retaining device of the upper ring can be made in the form prescribed by the annular guide screws with the possibility of its interaction with the hole in the upper ring.

The stand is presented in figure 1, a side view, figure 2 a section a - a of figure 1, figure 3 - cross-section B-B of figure 1, figure 4 is a side view of the upper ring with the measuring devices on the circuits with the check chain tension, figure 5 is the same with the pressure of the chain links on the top ring, figure 6 is a view In figure 5.

Stand for research of the parameters of the chain stopper for ore passes consists of a segment mounted on frame 1 of a vertically oriented pipe 2. On the lower edge of the tube 2 is fixed guide ring 3 with angled cross-section profile with 4 vertical and 5 horizontal shelves. On the horizontal shelf 5 guide ring 3 is placed the upper ring 6 with the possibility of rotation in a horizontal plane relative to the guide 3. The ring 6 is supplied attached at its perimeter with the same step welded kruglozerny circuits 7. The lower ends kruglozernyh circuit 7 is fixed at the other (lower) ring 8 with the possibility of rotation in the horizontal plane and offset in the vertical plane.

On the upper ring 6 at its perimeter set alternating between the rollers 9 and 10 with the possibility of rotation on a horizontal 11 and 12 vertical axes and with the possibility of interaction between rollers 9 and 10, respectively, with 5 horizontal and vertical 4 shelves guide ring 3. On the lower ring 8 at its perimeter with the same step on the vertical axis 13 mounted rollers 14 with the possibility of their interaction with the inner cylindrical surface of the casing 15, is attached to the chassis 1. On the lower ring 8 is also mounted diametrically located et the extra rink 16 and 17 on the removable horizontal axes 18 and 19 interoperable additional rollers 16 and 17 with vertically oriented guide rails 20 and 21 of the double-tee cross-section profile, which the hinge 22 and 23 is suspended from the frame 1 with their upper ends with the possibility of rotation in the plane passing through the axis 18 and 19 additional rollers 16 and 17, in the side of the lower ring 8 and the fixing rails 20 and 21 in a rotated position relative to the frame 1. On the top 6 and bottom 8 rings pinned rims 24 and 25 with the possibility of placing in their gutters segments of the flexible elements 26 and 27 and with the possibility of coverage rims 24 and 25 of the flexible elements 26 and 27 at an angle close to 360. With one end 28 and 29 of each flexible element 26 and 27 mounted on the rim 24 and 25, and the other is equipped with a dynamometer 30 and 31 and kinematically connected with a drive (not shown). The drive can be both mechanical and manual. The upper ring 6 provided with a locking device 32 to lock the upper ring 6 relative to the guide ring 3. A cylindrical casing 15 is made with a vertical slot cut-out 33 with the possibility of placing it down with the lower ring 8 branches flexible element 27.

At least three kruglozernyh circuits 7 in the area of their attachment to the upper ring 6 mounted sensors 34 (1), registering a magnitude of the longitudinal loading kruglozernyh circuits 7 and kruglozerny circuit 7 with the sensors 34 are placed around the perimeter of the upper ring 6 at the same distance from each other (Fig.6). The sensors 34 can be done which are in the form of a device 35 for measuring tension kruglozernyh circuits 7 (figure 4) or devices 36 for measuring the pressure of the links kruglozernyh circuit 7 on the upper ring 6 in the places of their charms to this ring (figure 5).

In the inner cavity of the pipe segment 2 is placed with a gap in the horizontal plane round plate 37 with the possibility of hosting a removable cargo 38 and communicate with an internal cavity of the pipe segment 2 ore sample 39. This plate 37 by means of the flexible element 40, the length of which is equal to the height of the pipe segment 2, kinematically connected with the frame 1 when the point 41 of the flexible mounting element 40 to the frame 1 along the symmetry axis of the pipe segment 2. Under the lower ring 8 on the frame 1 has a container 42 is placed in the upper part of the slide damper 43 capable of receiving and placing in a container 42 of the ore sample 39.

The retaining device 32 of the upper ring 6 may be made in the form mounted on the ring rail 3 screw 44 with the possibility of its interaction with the hole 45 in the upper ring 6.

The design and selection of the parameters of the stand are made on the basis of theory of similarity with regard to the parameters of the designed or operated the ore passes - diameter outlet conditions of its placement in the mine, as well as particle size distribution and physical-mechanical properties of ore in ore passes.

Work on the stand is carried out as follows. Research carried out for the two embodiments of the drive chain gate at the top and nizhnemrasskaya drive ring.

When you research options chain bolt with the top placement of the rotary ring 6 with the rim 25 of the lower ring 8 remove the flexible element 27 with a fixed dynamometer 31. The guides 20 and 21 is fixed in a vertical position. The rotation of the screw 44 of the locking 32 rasstropovyvajut upper ring 6, thus moving the screw 44 from the hole 45 in the upper ring 6. Slide gate 43 overlap the container 42. In a section of pipe 2 and in the inner space between kruglozerny circuits 7 place the ore sample 39, on top of which set the plate 37, and it is removable cargo 38, imitating (at appropriate scale) the ore pressure on the shutter of the actual ore passes. In the initial position, the pressure of a sample of ore 39 perceived gate valve 43. Next, gradually opening the gate valve 43 with the provision of unloading ore samples 39 in the container 42, by a mechanical actuator or manually by means of the flexible element 26 to rotate the upper ring 6, consistently capturing both readings of the dynamometer 30, the angle of rotation of the upper ring 6, the lifting height of the lower ring 8 and the sensors 34, the clamping load on kruglozerny circuit 7, as measured by tension devices 35 or as measured by device 36, the pressure of the upper links kruglozernyh circuit 7 on the upper ring 6 are operated, gradually spinning kruglozerny circuit 7, to completely shut off the flow of ore 39 of the outlet pipe section 2.

When you research options chain bolt with the lower placement of the rotary ring 8 by means of the screw 44 of the locking 32 of the upper ring 6 is fixed relative to the annular guide 3 using the locking device 32. The guides 20 and 21 rotate about hinges 22 and 23 in the side of the lower ring 8 and is fixed in this position. Next, perform operations similar to those described above. Then, gradually opening the gate valve 43 with the provision of unloading ore samples 39 in the container 42, by a mechanical actuator or manually by using the flexible element 27 rotates the lower ring 8, sequentially capturing both readings of the dynamometer 31, the angle of rotation of the lower ring 8, the lifting height of the lower ring 8 and the sensors 34. The operation was performed, gradually spinning kruglozerny circuit 7, to completely shut off the flow of ore 39 of the outlet pipe section 2, simulating the ore passes.

The readings of the load cells 30 and 31 determine the tension in the flexible elements 26 or 27 and the required power drives rotation of the rings 6 or 8. The readings of the sensors 34 (range 35 and 36) determine the maximum tension of the chains 7 and need to change the e durable dimensions circuits 7 and their type. For the angle of twist chains 7 determine canadaeast drives the rotation of the top 6 or bottom 8 of the rings. The lifting height of the lower ring 8 determine the dimensions of the chain stopper designed for the actual conditions.

Features of the invention allow in the laboratory to determine the force and kinematic characteristics of chain stopper for ore passes to the terms of issue of lumpy ore from the ore passes at different hosting options, slewing ring, associated with the drive - upper and lower.

1. Stand for research of the parameters of the chain stopper for ore passes characterized in that it consists of the segment attached to the chassis by a vertically oriented pipe, on the lower edge of which is fixed an annular guide with angled profile in cross-section with vertical and horizontal shelves, and rings placed with the possibility of rotation in a horizontal plane relative to this guide and provided with secured at its perimeter with the same step welded kruglozerny chains, the lower ends of which are secured to another ring with the possibility of rotation in the horizontal plane and offset in the vertical plane, while the top ring on the perimeter of installed alternating between other rinks in the possibility of their rotation on the horizontal and vertical axes and interoperable rollers respectively with the horizontal and vertical shelves of the ring rail, and the lower ring on the perimeter with the same step on the vertical axes of the rollers installed with the possibility of their interaction with the inner cylindrical surface of the casing, fixed to the frame and diametrically located two additional rink on removable horizontal axes, with the possibility of their interaction with vertically oriented guide h-profile in cross section, pivotally suspended from the frame with their upper ends with the possibility of rotation in the plane passing through the axis of the additional rollers in the side of the lower ring and fixing the rails in a rotated position relative to the frame, the upper and lower rings pinned rims with accommodation in their the grooves of the segments of the flexible elements and covering rims flexible elements on the corner, close to 360, with one end of each flexible element is mounted on the rim, and the second is equipped with a dynamometer and kinematically connected with the actuator, the upper ring is provided with a locking device to lock the upper ring relative to the ring rail, a cylindrical casing made with a vertical slot cut with the possibility of placing it down with the bottom ring of the branches of the flexible element, and at least three kruglozernyh circuits in the area of their attachment to the top of the ring gauges, registering the magnitude of the longitudinal loading kruglozernyh circuits, and kruglozerny circuit with sensors placed around the perimeter of the upper ring at the same distance from each other, in the inner cavity of the pipe segment is placed with a gap in the horizontal plane round plate with the possibility of hosting a removable cargo and communicate with an internal cavity of the pipe segment of a sample of ore, and the plate with the flexible element, the length of which is equal to the height of the pipe segment, kinematically connected with the frame when the point of attachment of the flexible element to the frame along the axis of symmetry of the pipe segment, below the bottom ring is installed on the frame container is placed in its the upper part of the slide gate capable of receiving and placing in a container of a sample of ore.

2. The stand according to claim 1, characterized in that the sensors are made in the form of a device that registers the tension kruglozernyh chains in their suspension to the upper ring.

3. The stand according to claim 1, characterized in that the sensors are made in the form of a device that registers the pressure of the links kruglozernyh circuits on the upper ring in the places of their charms to it.

4. The stand according to claim 1, characterized in that the retaining device of the upper ring is made in the form prescribed by the annular guide screws with the possibility of its interaction with a hole in the top ring.



 

Same patents:

FIELD: mining.

SUBSTANCE: invention refers to test benches for experimental investigations in laboratories. The test bench for investigation of parameters of the chain gate for ore chute consists of the section of a vertical oriented tube secured on a frame; a circular guide of angular profile in cross section with vertical and horizontal flanges is fastened on the lower cut of the said tube; the bench also consists of a ring designed to turn in a horizontal plane relative to the guide and equipped with welded round-link chains arranged along the perimeter of the ring at uniform spacing. Lower ends of chains are secured to another ring, which can turn in a horizontal plane and can be set off in a vertical plane. Alternating between them rollers are installed on the upper ring along its perimeter; the rollers are designed to rotate around horizontal and vertical axes and also the rollers interact correspondingly with horizontal and vertical flanges of the circular guide. Further the rollers are assembled on the lower ring along the perimeter of the ring with uniform distance between them and on vertical axes; these rollers are designed to interact with interior cylinder surface of the case secured on a frame; also on the lower ring there are assembled two additional diametrically set rollers on removable horizontal axes, the said rollers interact with vertical oriented guides of double-T profile in cross section pivotally hanged to the frame with their upper ends and able to turn in the plane passing through the axes of the additional rollers sideways from the lower ring; the said guides can be fixed in turned position relative to the frame. In upper and lower rings in grooves of sections of flexible elements there are secured rims; flexible elements envelope the rims at an angle close to 360 degrees. One end of each flexible element is fastened on the rim, while another is equipped with a dynamometer and kinematically connected with a drive. The upper ring is equipped with a catch device, which fixes the upper ring relative to the circular guide. The cylinder case has a vertical slit wherein the branch of the flexible element running from the lower ring is located. A round plate is placed in the interior cavity of the tube section with a gap in a horizontal plane; alternative loads can be arranged on the plate; also this plate interacts with samples of ore located in the interior cavity of the tube section. By means of the flexible element, the length of which is equal to the height of the tube section, the plate is kinematically tied with the frame, where points of flexible element fixture to the frame are arranged along the symmetry axis of the section of the tube. A container with a slide gate in its upper part is installed under the lower ring on the frame; the samples of ore can be received and placed in the container.

EFFECT: invention facilitates laboratory assessment of strength and kinematic characteristics of chain gate for ore chute for conditions of ore lumps chute with various versions of turn ring position: upper and lower one.

2 cl, 1 dwg

FIELD: physics.

SUBSTANCE: laboratory bench designed as standalone installation includes air-ejector mounted inside of rectangular box with counter swirl air flow apparatus attached on its cover plate. Downflow swirler in body cavity is provided with plain washer attached below tangential branch pipe. Upflow swirler is made of identical thin-walled bent tubes with lower ends rigidly clamped in line to each other through inside perimeter of half-length telescopic pipe moving over external diameter of coaxial branch pipe. Upper ends of the bent tubes protruding from the telescopic pipe are deflected from its axis and are bent towards clockwise rotation at the same time. Along the telescopic pipe axis, there is a moving axial pipe provided with injection nozzle from the side of working chamber. The pipe is provided in the axial bore between lower ends of the bent tubes, while its lower end is moving within bottom-most portion of the coaxial branch pipe and supplied with the fluid valve at its end by. External surface of the telescopic tube close to its upper end face contains removable plain washer radially split to petals with angular edges bent towards storage hopper cavity. Slide gates with in-built internal cavity provided with square-sectioned channel and casing external surface provided with linear metric scales are attached to inlet end faces of downflow and upflow branch pipes. Linear metric scales relate to moving flat latching plates with datum planes relative to linear scales.

EFFECT: higher level position stability and stable rotation of toroidal product blanket, reduced back leakage of dust from under the dividing washer, ensured lower hydrodynamic resistance in upflow swirler and in apparatus as a whole, prevented dust adhering in stagnant air within acute angle between bottom-most portion of storage hopper and upflow branch pipe.

16 cl, 17 dwg

FIELD: mechanical engineering; trainers.

SUBSTANCE: invention relates to training devices which can provide real conditions of crankshaft laying required for training servicemen for repair and operation of internal combustion engines. Proposed trainer for forming skills of crankshaft laying in internal combustion engine contains table, ratchet head with rotating end piece, support plate and brackets on support plate. Beads of main bearings of cylinder block are connected by channels and high pressure hoses with hydraulic plant. Pressure and temperature of working liquid in hydraulic system are read by pressure and temperature gauges.

EFFECT: possibility to create real conditions for selection of shells for main bearings, laying of crankshaft and reduction of time taken for fitting operations in process of repair of crank gear.

3 dwg

FIELD: training facilities.

SUBSTANCE: trainer allows modeling real conditions of doing adjusting works of valve mechanism, which skills are necessary for preparing specialists who repair and maintain the internal combustion engines. Trainer for forming skills of doing adjusting works of internal combustion engine's valve mechanism has table, rattle head with rotating tip, support plate, arm-pieces on support plane. Rotation transmitted from handle of drive of main shaft, disposed inside table in supports of rotation, is passed through drive gear to distribution shaft, disposed inside table in supports of rotation. Head of arm-pieces in assembly is attached to top part of support plate by means of arm-pieces. Axes of pushers are fastened to lower part of support plate onto arm-pieces. Support plate is fastened to table for rotation and fixation. Axis of rotation of rotary plate is shifted relatively axis of pushers. Re-adjustment of space in valve mechanism is provided.

EFFECT: reduced time for re-adjustment.

FIELD: engineering of training appliances utilized in training process during studies of mechanics, physics, theory of mechanisms.

SUBSTANCE: training device for demonstration of gearing by means of overhead projector contains body of transparent material in form of plates 1,2, driving disk 5, leading cog 7c with external teeth and following cog 8 with internal teeth, held on axis, and gear couple with external connection. Gear couple is mounted on lower plate 1 of body, one gear 14 of which is connected to following cog 8. leading cog 7 is mounted on driving disk 5, and following cog 8 - with possible free rotation on upper plate of body by means of additional disk 9 and axis 11.

EFFECT: expanded demonstrational capabilities of device, unification of devices, demonstrating types of gearings, decreased device dimensions, increased legibility of image on screen and improved efficiency of device utilization during training process.

1 dwg

FIELD: training tools and devices for the training process.

SUBSTANCE: the invention is dealt with the field of training tools and devices for the training process, in particular, with research of engineering and technology of the automated water supply systems, automatic control of a water supply system in a training process using engineering tools of the new information technologies of training. The multifunctional automated complex training-research laboratory consists of blocks connected in series and-or in parallel through intermediate tanks and devices of water-pump over and a water purification. The laboratory has a pumping plant of the first water rise connected by pressure conduits with chambers of switching with an intermediate tank of influent water, which through a pumping plant of the second water rise is interconnected with the technological apparatuses and blocks of the automated plant of the water purification including a block of clarification of water by settling, consisting of a chamber of a flocculation, a horizontal settler, a block of a reactant system, a block of a clarification of water in a suspension layer, including an air separator connected with a clarifier containing a suspended slurry bed, a block of a water clarification by filtration, that consists of a non-pressure fast and a pressure fast or ultra-speed filter with an intermediate tank of a clarified water, which through the pumping plant of the second water rise is connected to the apparatus of disinfection of water and is connected with an intermediate tank of purified water. The laboratory has an automated system of control over technological processes and a supervisory console with use of a PC and a symbolic circuit. The technical result is creation and implementation in the training-research process of the multifunction automated complex training-research laboratory operating in conditions of model engineering of real water supply systems.

EFFECT: the invention presents a created and introduced multifunction automated complex training-research laboratory operating in the real water supply systems.

18 cl, 7 dwg

The invention relates to the creation of the new laboratory for the study of powder materials

The invention relates to a transport machine building, in particular for spatial planting layouts used to estimate the pose of the driver, the position of the vehicle, adjustment of the external shape and appearance of the car interior

The invention relates to training

FIELD: mining.

SUBSTANCE: invention refers to mineral resource industry and can be applied when developing ore and non-metal minefields for transporting mineral product under influence of proper weight. Method involves boring of a pilot well till design length is achieved by means of a forward travel reaming bit. After that, it is removed and on the free splined shaft there assembled is a reverse travel reaming bit which consists of telescopic cross-pieces and a centering guide. Then, the pilot well is enlarged with reverse travel till the required shape of "flattened cone" is obtained.

EFFECT: excluding rat-holing of the ascending workings, decreasing energy consumption when crushing mined rock, and creating safe working conditions.

2 dwg

Ore chute gate // 2354600

FIELD: mechanics.

SUBSTANCE: ore chute gate comprises two bottoms attached onto cranks and arranged below the outlet hole to turn in a vertical plane in opposite directions relative to horizontal axles. The latter are fitted outside the branch pipe vertical walls and in parallel to them. Aforesaid cranks are linked up by other two cranks with their free ends linked with the rods of power cylinders arranged horizontally. The latter have are furnished with two rods to turn the cranks of aforesaid linkage in different sides. The cranks of bottoms, in initial position and with the gate opened, are oriented horizontally, while the cranks of the above linkage with the branch pipe walls form a 45 degrees angle. There is a dual-slope baffle arranged inside the branch pipe at the level of axles and in parallel to them to overlap the end face edges of bottoms, in plan, with the gate closed. Every bottom's crank has two pins fixed in cantilever therewith to enter, unobstructed, the openings of counter balance that rests upon the bottom's crank via detachable sleeves fitted on the pins.

EFFECT: higher reliability of gate operation.

5 cl, 7 dwg

FIELD: mining.

SUBSTANCE: invention refers to test benches for experimental investigations in laboratories. The test bench for investigation of parameters of the chain gate for ore chute consists of the section of a vertical oriented tube secured on a frame; a circular guide of angular profile in cross section with vertical and horizontal flanges is fastened on the lower cut of the said tube; the bench also consists of a ring designed to turn in a horizontal plane relative to the guide and equipped with welded round-link chains arranged along the perimeter of the ring at uniform spacing. Lower ends of chains are secured to another ring, which can turn in a horizontal plane and can be set off in a vertical plane. Alternating between them rollers are installed on the upper ring along its perimeter; the rollers are designed to rotate around horizontal and vertical axes and also the rollers interact correspondingly with horizontal and vertical flanges of the circular guide. Further the rollers are assembled on the lower ring along the perimeter of the ring with uniform distance between them and on vertical axes; these rollers are designed to interact with interior cylinder surface of the case secured on a frame; also on the lower ring there are assembled two additional diametrically set rollers on removable horizontal axes, the said rollers interact with vertical oriented guides of double-T profile in cross section pivotally hanged to the frame with their upper ends and able to turn in the plane passing through the axes of the additional rollers sideways from the lower ring; the said guides can be fixed in turned position relative to the frame. In upper and lower rings in grooves of sections of flexible elements there are secured rims; flexible elements envelope the rims at an angle close to 360 degrees. One end of each flexible element is fastened on the rim, while another is equipped with a dynamometer and kinematically connected with a drive. The upper ring is equipped with a catch device, which fixes the upper ring relative to the circular guide. The cylinder case has a vertical slit wherein the branch of the flexible element running from the lower ring is located. A round plate is placed in the interior cavity of the tube section with a gap in a horizontal plane; alternative loads can be arranged on the plate; also this plate interacts with samples of ore located in the interior cavity of the tube section. By means of the flexible element, the length of which is equal to the height of the tube section, the plate is kinematically tied with the frame, where points of flexible element fixture to the frame are arranged along the symmetry axis of the section of the tube. A container with a slide gate in its upper part is installed under the lower ring on the frame; the samples of ore can be received and placed in the container.

EFFECT: invention facilitates laboratory assessment of strength and kinematic characteristics of chain gate for ore chute for conditions of ore lumps chute with various versions of turn ring position: upper and lower one.

2 cl, 1 dwg

FIELD: mining; transporting.

SUBSTANCE: chain gate for ore chute consists of two rings assembled under discharge opening one above another and oriented in horizontal planes. The rings are tied between them with vertically oriented round-link chains secured on the rings with their ends and arranged along the whole perimeter of rings. The upper ring is stationary fastened under the discharge opening, while the lower ring is kinematically connected with a drive and is designed to turn in horizontal plane. The lower ring is equipped with rollers arranged around the exterior perimeter of the ring at uniform distances; the rollers are designed to rotate around vertical axes and interact with interior surface of a vertically oriented case of cylinder shape; the case envelopes chains with a gap. The case is secured on a stationary foundation. The lower ring from the lower side is made in form of a rim, in the groove of which a steel wire cable is inserted; the cable with its one end is secured on the rim, while with its another end it is tied with a drum, which is kinematically connected to the drive equipped with a breaking facility. In the initial position, when the gate is open, the cable envelopes the rim along the whole length of its circumference, while a slack from the rim strand of the cable envelopes a deflecting unit from below; the deflecting unit can rotate around its axis equipped with sliders; the sliders are designed to be set off in vertical guides and are equipped with a counterweight; in its initial position the counterweight is placed on the foundation. The axis of the drum is assembled so that it exceeds the lower ring at a value bigger, than vertical displacement of the lower ring, when the discharge opening of ore chute is shut; the distance in horizontal plane of the axis of the drum from the axis of the deflecting unit is chosen from the condition of approximate equality of resultant force of tension of tight and slack strands of the cable enveloping the deflecting unit for the lower ring in the initial position and after its displacement upward at closing the discharge opening with curled chains. The case is made with a vertical slot wherein the cable slack from the rim of the lower block can be inserted with a gap; the height of the slot is accepted not less, than the travel of vertical displacement of the lower ring.

EFFECT: invention facilitates simplifying design of chain gate and increasing reliability of operation at discharging lumps via discharge opening of ore chutes of increased sizes.

3 dwg

Ore chute gate. // 2347911

FIELD: mining..

SUBSTANCE: invention refers to auxiliary transport equipment, particularly to gates and is designed mainly for shutting off outlet apertures of ore chutes in mines; it can be also implemented for outlet of lump loads from hoppers. The ore chute gate contains two cylinder bottoms installed under an outlet port secured on two cranks; the said bottoms are designed to rotate in vertical plane into opposite directions against horizontal axes. The axes are located on outer sides of vertical walls of a sleeve and parallel to them. The cylinder bottoms of cranks are arranged overhung with the length of arc corresponding to right angle; free ends of bottoms are directed inside the sleeve. Kinematical connection between cranks is made in form of additional cranks secured on axes. Free ends of cranks are connected with rods of two double-piston-rod actuating cylinders oriented horizontally and assembled with gaps relative to two other walls of the sleeve. In their initial position at an open gate the cranks are oriented horizontally, while the additional cranks form the angle of 45 degrees with the walls of the sleeve; the additional cranks are designed to interact after turn into the direction of the sleeve at the angle of 90 degrees with stops secured on the sleeve. A shield with two sloping surfaces is installed inside the sleeve at the level of axes and parallel to them; the said shield overlaps the end flanges of the cylinder bottoms in plane when the gate is closed and is oriented along the axis of sleeve symmetry. Free ends of the shield are arranged in slots of the side walls of the sleeve and are designed to set off the shield in vertical and horizontal planes. The shield is spring loaded towards brackets of the sleeve by means of a compression spring. At the ends of the shield there are installed unbalance vibrators; their axes are parallel to a lengthwise axis of the shield. Dimensions of the gate are chosen considering the following ratio R=0.5B+a, r<0.355[0.5(B-b)+a-c], where R is radius of the crank, m, r is radius of additional crank, m, B is the width of the outlet port of the sleeve, m, a is the distance between the axis and inside surface of the sleeve wall, m, b is total distance between piston rods and piston rods and end walls of the actuating cylinder for final positions of the piston rods, m, c is the height of the piston rod of the actuating cylinder, m. A replaceable component out of wear and shock resistant material is installed on top of the shield with two sloping surfaces.

EFFECT: increased reliability of operation at unloading oversize lumps through outlet port of ore chute, eliminating possibility of jamming of separate lumps of unloaded bulk between cylinder bottoms and supporting them cranks and avoiding doming.

2 cl, 5 dwg

Ore drawing device // 2312810

FIELD: mining, particularly devices to draw and deliver particulate materials (crushed rock) from ore passes in underground mining.

SUBSTANCE: device comprises gutter with driving gate arranged in lower part thereof and defining sector in cross-section. The gate may rotate in vertical plane. The gutter has comb member arranged in bottom part thereof and connected to gate through hinged-lever connection. Lever of the connection is installed in the comb member and may slide in slot by means of roller. Upper comb member part has dovetail partitions.

EFFECT: increased operational reliability, simplified structure, assemblage and maintenance.

2 dwg

FIELD: mining, particularly transport specially adapted to underground conditions.

SUBSTANCE: method involves loading industrial waste in tilting skip unloaded from skip bottom; receiving and unloading industrial waste via hoppers; lowering empty skip at predetermined depth for skip loading with industrial waste from another hopper; transporting skip filled with industrial waste along bore to receiving hopper opened by means of hinges; unloading industrial waste through bottom thereof; filling the skip with mineral; lifting the skip to day surface along the bore.

EFFECT: increased efficiency of skip hoist usage for industrial waste lowering and transportation to goaf.

1 dwg

Ore chute // 2298104

FIELD: mining industry, possible use during underground extraction of mainly ore formations and kimberlite pipes.

SUBSTANCE: ore chute is provided with elastic, closed covers positioned pair-wise along the height of ore chute shaft and filled with compressed air. They are held on armored hermetic cable for feeding compressed air and on rope. Cover pairs adjacent height-wise are positioned transversely to each other. Diameter d of cover is selected from inequality d>0,5D, where D - diameter or transverse diameter of ore chute. Distance between adjacent pairs of covers vertical-wise along height h is calculated from formula h=10+1/dp, where dp - average diameter of rock mass piece, meters.

EFFECT: decreased degree of size reduction of rock mass, decreased costs of major repairs of ore chute, reduced speed of rock mass during transfer through ore chutes of practically any height.

2 dwg

Ore pass // 2272148

FIELD: mining, particularly for underground ore deposit and kimberlite pipe development.

SUBSTANCE: ore pass comprises shaft, loading mouth and sieve. The ore pass shaft is provided with conveyer belts suspended to sieve grate so that distances between adjacent conveyer belts are different and defined by maximal dimensions of rock pieces passing between the belts. Sealed elastic shell is arranged in lower ore pass part. The sieve is installed at α=17° - 45° angle to horizontal plane. Lower conveyer belt ends are provided with weights.

EFFECT: reduced degree of rock grinding, increased service life of ore pass members.

5 dwg

The invention relates to mining and can be used to improve the performance of the release of the rock mass of the ore chutes and duchek

Ore pass // 2272148

FIELD: mining, particularly for underground ore deposit and kimberlite pipe development.

SUBSTANCE: ore pass comprises shaft, loading mouth and sieve. The ore pass shaft is provided with conveyer belts suspended to sieve grate so that distances between adjacent conveyer belts are different and defined by maximal dimensions of rock pieces passing between the belts. Sealed elastic shell is arranged in lower ore pass part. The sieve is installed at α=17° - 45° angle to horizontal plane. Lower conveyer belt ends are provided with weights.

EFFECT: reduced degree of rock grinding, increased service life of ore pass members.

5 dwg

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