(57) Abstract:The invention relates to the field of mining and construction, in particular for machines for the destruction of frozen and durable soil gasoinline impact. Object of the invention is to reduce the energy intensity of the process of destruction of the soil with increasing adaptation Ripper to soil conditions and structural simplification. The invention consists in that in gatenoise the Ripper containing hydraulic, compressor and the working body in the form of a tubular casing with a screw tip having near the last exhaust openings and overlying the valve, and placed inside the housing, coaxial him, tubular hollow cylinder, the gas distribution system pipelines, valve mechanism and operating the primary and secondary chambers, on the side opposite to the working tip, a piston located on the tubular cylinder inside which is made movable on the type of the pusher and has on the outer surface of the sealing ring for closing the outlet of the compressed gas, and in the upper part of the pusher is made of longitudinal openings for the inlet gas, the length of which somerimes through the working valve is omitted gazoprovoda tube, connecting the control chamber with a source of compressed gas or atmosphere, and the second working chamber outside the housing and serves as a drive, in addition, latinpussy Ripper can be supplemented reducing valve, consisting of two membranes connected to the valve to supply compressed air from a compressor. 1 C.p. f-crystals, 1 Il. The invention relates to the field of mining and construction, in particular for machines for the destruction of frozen and durable soil gasoinline effect.Known technical solution consists in the fact that the device for the destruction of a ground pulse of high pressure gas contains bury in the ground the tip and connected therewith a tubular body with a tank of compressed gas, through which the valves are communicated with the supply line of gas and exhaust holes in the body, located near the tip (ed. St. N 569687, CL E 02 F 5/18, 1976).In the known device the exhaust valve is adjusted to a certain pressure of the compressed gas and there is no possibility to automatically regulate the pressure of gas in the tank, depending on the strength of erodible soil.It is also known device (ed. St. USSR N 621839, CL E 02 F 5/30, E 21 37/14, kotorogo is capacity, filled with a compressed gas. In the lower part of the working body in a tubular housing with holes for exhaust of compressed gas from the tank. In the tank is a spring-loaded piston is connected by a thrust with the overlapping of the exhaust valve hole and the separating space of the vessel into two chambers. One camera through a controlled valve is in communication with the gas inlet line, the other with exhaust holes. The camera can be periodically connected via through holes in the piston, which has a spring-loaded valves.The disadvantage of this device is to limit the pressure values, because the stiffness of the spring valve significantly reduces the range of the required pressure for the destruction of the soil, making it economical enough. Another disadvantage is the lack of adaptability to soil conditions.It is also known a device for loosening soil (ed. St. USSR N 1078003, CL E 02 F 5/30, 1984).The device includes a screw tip connected to the tubular body, a container for compressed gas, made for the housing of the working body, through which the exhaust valve is in communication with the supply line of gas and with the normally open valve, shut-off element which is located on the side of the vessel.The downside of it is high intensity, so as normally open valve mounted at the outlet from the tank, has a significant resistance to the outflow of gas, and due to their large inertia due to the presence of springs, the resistance which must be overcome compressed gas at the end, he covers only the remnants of the compressed gas, after actuating the sharp increase of the expiration of the compressed gas, thereby missing the bulk of it in the atmosphere and blocking only the compressed gas remaining in the tank, and the gas filling of the tubular body, is lost. In addition, the known device does not allow to regulate the pressure of gas in the tank in accordance with the specific ground conditions, that is, to set the optimum pressure of the compressed gas depending on the physico-mechanical properties of soil.Closest to the claimed device is a device for loosening soil (ed. St. N 2004710, CL E 02 F 5/32, 1993).The device includes a hydraulic drive, the compressor, the working body in the form of a tubular casing with a screw tip having near the last exhaust mu includes basic and additional working camera, gazoprovoda piping and valve mechanism, including a working valve overlap of exhaust apertures, the camera control work valve connected through gazoprovoda tube passing through the working valve, a source of compressed gas or atmosphere.The disadvantage of this device, despite the detailed development of each element is the excessive workload of the structure and its large dimensions, since all work items are inside the working body, and lack of adaptation to soil conditions, since the destruction of the soil is carried out by a pulse of compressed gas to a predetermined pressure.The objective of the proposed solutions is to eliminate these disadvantages.The invention consists in that in gatenoise the Ripper containing hydraulic, compressor and the working body in the form of a tubular casing with a screw tip having near the last exhaust holes placed inside the housing, coaxial him, tubular hollow cylinder, gas distribution system, including primary and secondary working chamber, gazoprovoda troopa work valve, connected through gazoprovoda tube passing through the working valve with a source of compressed gas or atmosphere, according to the invention, the tubular hollow cylinder configured to move the follower type, the inner cavity of which simultaneously is the main working chamber and on the top, opposite the screw tip, the end of the tubular hollow cylinder made rigidly connected with the piston, and valve mechanism includes camera control plunger, which placed the working end of the piston, and the secondary working chamber, which functions as a storage of compressed gas, outside of the working body and connected with the main working chamber through radial channels, made in the tubular body, and longitudinal slots made in the upper part of the pusher, the length of which is equal to the length of the stroke of the follower on the outer surface of which is directed toward the inner side of the tubular housing, the o ring with the possibility of overlap when moving the pusher exhaust holes radial channels in the tubular casing, primary and secondary camera connected to the camera control valve through the work the ring over in turn by a source of compressed gas or atmosphere.In addition, this object is achieved due to the fact that latinpussy Ripper can be supplemented reducing valve, consisting of two membranes connected to the valve to supply compressed air from a compressor.The claimed technical solution is illustrated by the drawing, which shows a General view of the inventive latinolingo Ripper.Ripper contains a working body in the form of a tubular body 1 with a screw tip 2 and the exhaust holes 3, the overlapped work valve 4 located in close proximity to exhaust vents. Inside the tubular body 1 coaxially placed him tubular hollow cylinder 5, is arranged to move the follower type, the inner cavity of which simultaneously is the main working chamber 6, and the upper end of the small tubular cylinder 5 is made rigidly connected with the piston 7. The gas distribution system includes a main working chamber 6 and the additional working chamber 8, which serves as a storage of compressed gas and outside of the working body and connected with the main working chamber 6 through the radial channels 9, made in the tubular body 1, and the longitudinal a surface which has a sealing ring 11. Latinpussy Ripper also contains the hydraulic actuator 12, a compressor 13, the gas distribution system in addition to the primary and secondary 8 working chambers includes gazoprovoda pipes 14, the valve mechanism, which includes the camera control 15 working valve 4 connected through gazoprovoda tube 16 passing through the working valve 4, with a source of compressed gas or atmosphere, the control chamber 17 of the plunger 5, which placed the working end of the piston 7. The main 6 and an additional 8 working camera connected to the camera control 15 working valve through the annular gap 18 formed between gazoprovoda tube 16 and the working valve 4. The control chamber 17 of the plunger 5 is connected in turn to a source of compressed gas or atmosphere. Gazoprovoda tube 16 passes through the piston 7 by a sealing sleeve (not shown). Additional working camera drive 8 is rigidly mounted on the tubular body 1 of the Ripper through the gas distribution ring 19.The camera control 15 working valve 4 through gazoprovoda tube 16 and the gas distribution ring 20 three-way valve 21 is connected with a pressure reducing diaphragm valve pressure reducing diaphragm valve 22. The hollow tubular plunger 5 with the outer side facing the inner side of the housing of the working body 1 has two sealing rings 24 and 11, the size of which is commensurate with the size of the stroke of the pusher (equal to the height of the camera control valve). Valve pressure reducing valve mechanism includes a hydraulic actuator 12 in the form of the motor junction box 25, pump 26, a system of distribution pipes 27. Himself a pressure reducing diaphragm valve 22 consists of two membranes 28 and 29 are rigidly connected with the valve stem 30 overlying the access of compressed gas from the compressor 13. Each of the membranes in contact respectively with pneumatic 31 and 32 hydraulic chambers a pressure reducing valve.The loosening of the frozen soil of the proposed CSD is as follows. To tubular body 1 of the hydraulic motor 12 is transmitted torque. Under the action of this moment, the screw tip 2 is wrapped in an array, immersing in frozen soil working body with exhaust holes 3 to a predetermined depth. Torque on the rod depends on the actual soil strength and, consequently, the pressure in the hydraulic actuator of the working body rises to a certain of westok, opens the valve 30. Gas from the compressor 13 into the chamber 31, then through the valve 21, the gas distribution ring 20 and Gazoprovod tube 16 enters the control chamber 15 working valve 4. The gas exerts on the valve surface 4, pressing it up to the ring of the pusher 5. The valve closes the exhaust hole 3, and the plunger 5 is lifted up, revealing the entrance of compressed gas through the main working chamber 6 of the slot in the plunger 10, the radial channels 9 and the gas distribution ring 19, the drive 8. Through the annular gap 18 between the gas-feeding tube 16 and the channel walls in the operating valve 4 gas gradually fills the main working chamber 6 and the additional working chamber of the accumulator 8 to the pressure required to fracture the soil adequate strength. The control chamber 17 of the piston 7 of the plunger 5 through the pipeline 14 and the gas distribution ring 23, is filled with gas to the same pressure. Upon reaching the working body with the exhaust holes 3 required depth, actuates solenoid pneumatic three way valve 21, which cuts the gas supply from the compressor 13 to the working body and connects the control chamber 15 working valve 4 with the atmosphere (Ref. 2). Due to the drop dichotic pulsed gas flow in the soil and its destruction. After the destruction of the soil gas pulse, the pressure in the chamber 6 and the drive 8 drops sharply, and the gas pressure in the control chamber 17 by the piston of the plunger is transmitted to the plunger 5, the latter under the action of this force moves down and its sealing rings 11 and 24 overlaps the exhaust hole 3 and hole through which an end of the gas in the accumulator 8 and, consequently, stops the outflow of gas from the chambers 6 and 8. The workflow is pumped.The use of the proposed Ripper allows you to reduce the energy intensity of the process of destruction of the soil, because, first, into the working chamber and a drive pressure reducing diaphragm valve pumped the gas, the pressure which is necessary for the destruction of this soil strength; secondly, when a sharp drop in gas pressure, resulting in the destruction of the soil, the pusher their sealing rings overlaps the gas at the outlet of the working chamber and the drive, eliminating wasteful leakage of gas into the atmosphere. 1. Latinpussy Ripper containing hydraulic, compressor, work the body in the form of a tubular casing with a screw tip having near the last exhaust holes placed inside the housing, coaxially of Emory, gazoprovoda piping and valve mechanism, including a working valve overlap of exhaust apertures, the camera control work valve connected through gazoprovoda tube passing through the working valve, a source of compressed gas or atmosphere, characterized in that the tubular hollow cylinder configured to move the follower type, the inner cavity of which simultaneously is the main working chamber, and a top opposite the screw tip end of the tubular hollow cylinder made rigidly connected with the piston, and valve mechanism includes camera control plunger, which placed the working end of the piston, and the secondary working chamber, serving as a drive compressed gas, outside of the working body and connected with the main working chamber through radial channels made in the tubular body, and longitudinal slots made in the upper part of the pusher, the length of which is equal to the length of the stroke of the follower on the outer surface of which is directed toward the inner side of the tubular housing, the o ring with the possibility of overlap when moving the pusher open exhaust control valve through the work of the annular gap, formed between gazoprovoda tube and a working valve, and the camera control plunger is connected, in turn, to a source of compressed gas or atmosphere.2. Latinpussy Ripper under item 1, characterized in that it has a pressure reducing valve, consisting of two membranes connected to the valve to supply compressed air from a compressor.
FIELD: mining industry; civil engineering.
SUBSTANCE: invention can be used in rippers of gas-dynamic action for loosening firm and frozen soils. Proposed gas-dynamic ripper has hollow rod housing installed coaxially and connected mechanically with housing of screw head with exhaust holes, vertically installed gui9de shaft for fastening on frame of base machine on which bracket is installed for longitudinal displacement with fitted-on bushings for connection with shaft, cocks to control delivery of compressed gas and pipelines to deliver compressed gas from supply source to gas distributor made in form of pneumatic accumulator with hollow shank secured on hollow rod housing, and ring housing with three ring channels in its wall rigidly connected with bracket, coaxially installed inner and outer supply pipes, exhaust control valve installed in screw head installed for limited axial displacement inside housing of screw head and interacting with seat for communicating ring clearance between seat and inner supply pipe with exhaust holes in housing of screw head are provided with control space and inner supply pipe arranged in control space, spring to press valve to seat, and piston for forced displacement of gas installed inside hollow rod housing for limited axial displacement. One of ring channels in wall of ring housing communicates through cock with pipeline to deliver compressed gas from supply source, and it communicates through radial channels made in ring housing through inner supply pipe with valve control space to communicate ring clearance between seat and inner supply pipe with exhaust holes in screw head housing. Space of pneumatic accumulator communicates with atmosphere and with supply source through compressed gas supply control cock, pipelines, ring channel with radial channels in wall of ring housing, radial channels and inner space in shank. Ring clearance between seat and inner supply pipe communicates with supply source through compressed gas supply cock, pipelines, ring channel with radial channels in wall of ring housing and outer supply pipe. Housing of pneumatic accumulator is made in form of hollow cylinder with lower and upper flanged parts provided with concentric holes for coaxial fastening of upper flanged part of pneumatic accumulator to flanged part of hollow shank, for coaxial fastening of lower flanged part of pneumatic accumulator to flanged part of hollow rod housing made at a distance from its upper end face equal to height of housing of pneumatic accumulator. Seat installed on upper end face of hollow rod housing for limiting upwards movement of forced gas displacement piston. Spring for limiting downward movement of forced gas displacement piston is installed on upper end face of seat to limit upward movement exhaust control valve. Outer supply pipe is installed in central hole of forced gas displacement piston.
EFFECT: increased efficiency.
FIELD: mining industry, particularly gas-dynamic devices for layered ground cutting.
SUBSTANCE: device has hollow rod body of central ripper kinematically connected to discharge bush coaxially thereto, screw bit body connected to discharge bush coaxially thereto, vertical guiding shafts to be secured to the base machine frame. Corbels are connected to guiding shafts so that corbels may perform longitudinal movement. Corbels have bushings for connecting thereof with guiding shafts. Device also has protective shield with central orifice for hollow rod body passage, valves to control delivery of compressed air and pipelines for compressed air supplying from source to gas distribution mechanism formed as the main operative chamber secured to upper end of hollow rod body and having hollow tail inserted in through central orifice of annular body rigidly connected to corbels. Annular body has central upper annular channel with radial channels and central lower annular channel with radial channels. Annular body may perform limited axial displacement inside discharge bush and may cooperate with lower end of valve rod body to establish communication between annular gap defined by rod body and central supply pipe, and exhaust orifices of discharge bush. Annular body comprises control chamber and central feeding pipe arranged into the control chamber, spring for valve pressing to lower end of rod body of central ripper. The device is provided with four additional gas-dynamic rippers with tails installed in through coaxial orifices formed in the annular body. Upper coaxial channel with radial channels and lower coaxial channel with radial orifices are formed around each through coaxial channel. One upper coaxial annular channel communicates through said valve with pipeline for compressed air supplying from the source and communicates with operative chamber by means of radial channels formed in annular body and through radial channels and inner cavity of the tail. Each other upper coaxial annular channel communicates with central upper annular channel through radial channels in annular body. One of the lower coaxial annular channels communicates with pipeline supplying for compressed air through the valve and with valve control chamber by means of radial channels made in annular body through annular groove created in the tail and through central supplying pipe to establish communication between annular gap defined by rod body of additional ripper and central supplying pipe, and exhaust orifices in discharge bush. Each other lower coaxial annular channel communicates with central lower annular channel through radial channels of annular body.
EFFECT: increased output.
3 cl, 6 dwg
FIELD: mining and building, particularly for layered ground cutting by impulse compressed gas pressure application to the ground.
SUBSTANCE: device has load-bearing frame with vertical guiding shafts and cams connected thereto, gas-dynamic rippers with tubular rods. Connected to rods are screw heads with exhaust orifices, discharge bushes, working chambers, annular cases of gas-distribution units connected to vertical guiding shafts by means of brackets and enclosing vertical guiding shafts of sliding bushes. The device also has protective screen composed of several sections located at different levels along device height, movably connected to lower ends of vertical guiding shafts and eccentrically located relative central orifices adapted to receive tubular rods of gas-dynamic rippers formed in each protective screen section. Device also has supply system for -dynamic rippers. Upper parts of vertical guiding shafts may perform rotation through 0°-360° with fixation thereof and are installed in concentric orifices formed in load-bearing frame. Each cam has orifice for cam fixing in determined position. The orifices are eccentric to longitudinal vertical guiding shaft axis. Load-bearing frame also has concentric orifices formed with regard to each concentric orifice adapted for vertical guiding shaft installation. Concentric orifices of load-bearing frame are used for fixed cam connection with load-bearing frame. The connection is made as locking bolt installed in cam orifice and in one concentric orifice of loaf-bearing frame.
EFFECT: increased capacity.
2 cl, 6 dwg
FIELD: building equipment, particularly adapted to develop frozen and firm ground.
SUBSTANCE: device has tractor, executive tool formed as band with wedges secured thereto, executive tool frame, which connects the executive tool with tractor, and power source installed on executive tool frame. Device additionally comprises gantry connected to the tractor, vertical frame secured to gantry and cantledge lever. One lever end is pivotally connected to vertical frame. Central lever part is freely supported by executive tool frame through roller. Cantledge is installed on free lever end. Vibrator is rigidly secured inside executive tool frame, wherein the executive tool frame is three-dimensional and connected to vertical frame to perform rotation relative tractor in horizontal and vertical planes. Wedges are solid and cutting faces thereof are oriented along tractor travel direction axis. Band and cutting faces of the wedges form cutting disc having round continuous cutting edge.
EFFECT: increased capabilities due to possibility of ground cutting parameters regulation.
FIELD: mechanical engineering.
SUBSTANCE: the bearing-rotary device in the engineer track vehicle is installed in the nose section of the chassis on the side of the tower of and positioned in the armored hull, it is fastened in cantilever in the tower and made in the form of a low-profile straight cylinder with a bottom shaped as a ball segment. An opening is made in the segment on the side of the tower for disposition of the drive of the bearing platform. The upper part of the portal is cylinder-shaped and provided with a boom rotation mechanism. An ogee is made on the retractable section of the boom, at the end of the projecting part positioned are ears with an axle installed on which are the excavator dipper and the tooth-ripper positioned under the excavator dipper for provision of separate or joint operation by formation of a gripping working member. The wall of the retractable section positioned on the opposite side of the ogee is additionally provided with a cargo-catching hook hanger for applying hoist slings to the cargo. Brackets are made on the lateral walls of the retractable section, fastened in whose ears are two short-range hydraulic cylinders linked with the tooth-ripper through a leverage with formation of a drive for turning and fixing the shaped cutouts for arrangement of the hydraulic cylinders of the tooth-ripper drive at a shift of the boom from the operating to traveling position are made in the lateral walls of the boom bearing section on the side of the retractable section.
EFFECT: expanded functional potentialities of the vehicle, enhanced protection of the bearing-rotary device.
6 cl, 12 dwg
FIELD: mining industry.
SUBSTANCE: invention can be used in working members of mining and earth-moving machines, particularly, in machines for digging hard and frozen soils. Proposed ripper point for breaking hard and frozen soils has shank with slot for fastening, and wedge-like working part formed by front end surface, two side surfaces and rear surface. Working part of front end surface located in place of intensive wear is reinforced along longitudinal axial line H-H by three of stress concentrators, being round elements projecting over front end working surface and dipped into body of point. Distance L between concentrators in row and distance 1 between rows is equal to triple value of their diameter.
EFFECT: reduced effort to applied to small soil, reduced power consumption for ripping, increased service life of ripper point.
SUBSTANCE: invention concerns ground development by diggers and can be applied in mining, in construction for communication channel and line laying in hard and frozen soil and rock. Vibration ripper includes basic machine, parallelogram suspension, bearing beam 3, struts 5 with ripping cogs, vibration exciters. Articulated supports 8 are mounted at the top part of struts 5 and linked to resilient element 9. Resilient element is made in the form of pneumatic cylinder 9 including two equal chambers encasing force variation pistons 10 connected over stocks 11 and control rods 12 to top parts of struts 5. Each pneumatic cylinder chamber features volume variation pistons 13 connected by concentric stocks 14 over links 15 to hydraulic cylinders 16 controlling chamber volume and mounted at the ends or pneumatic cylinder 9.
EFFECT: enhanced efficiency of ground ripping.
SUBSTANCE: invention is related to construction and mining, and may be used in development of hard rocks, firm and frozen soils. Impact ripper includes basic machine, equal-arm lever mounted on hinged frame with main and additional pneumatic hammers, cavities of which are separated with piston-strikers, and air-distributing system that contains air distributor 12 and air manifold. Air distributor is arranged in the form of body and has rotor 13, which rests with journals via bearings 14 and 15, installed in bodies of couplers 16 and body of air distributor. Inside rotor 13 there are two non-communicating holes 17, arranged along radial lines. On generatrix of rotor 13 there are grooves 18, which are connected to radial holes 17. In journals of rotor 13 there are channels 19, which connect holes 17 to bores and channels 21, arranged in bodies of couplers 16. One of rotor 13 journals is connected via flanged coupler 22 to electric motor 23.
EFFECT: improved efficiency of ripper operation, simplification and increase of operation reliability.