Gas-dynamic ripper

 

The invention relates to the field of mining and construction and can be used rippers gas-dynamic steps for ripping solid and frozen soils. Gas-dynamic Ripper includes a hollow rod body, kinematically connected and mounted coaxially with the bit sleeve with exhaust holes, kinematically associated with the bit sleeve and mounted coaxially with the last screw tip, upright guide shaft for mounting on base frame of the machine on which you installed with the possibility of longitudinal movement of the bracket with a fixed bushings for connection with the shaft, valves for controlling the supply of compressed gas and pipelines to supply gas from the supply source to the gas distribution mechanism, made in the form attached to the upper end of the rod body, the main working chamber with a hollow shank, rigidly connected to the bracket annular body located in the wall of the three annular channels, coaxially mounted inner and outer inlet tube mounted with the possibility of a limited axial movement within the bit sleeve and interaction with the bottom Thor the exhaust holes in the bit sleeve, having the control cavity and placed in the cavity to control the inner tube, a spring for pressing the valve to the lower end of the rod body. One of the annular channels in the wall of the annular housing is communicated through the valve with tubing for compressed gas from the power source and through made in the annular housing radial channels communicated through the inner tube with the cavity of the control valve for the message of the annular gap between the rod body and the outer inlet tube from the exhaust holes on the bit sleeve. The cultivator is equipped with a large piston with the possibility of axial movement, installed in the main working chamber, which is made of concentric stepped holes, large diameter which has a needle valve, a spring for pressing the needle valve to concentric holes formed in the bypass sleeve that is installed in the large piston side newportnews cavity, and from the side of the lower end of the large piston is made smaller diameters of stepped concentric holes for messages through concentric holes formed in the small piston, coaxially attached to a large piston with whom rhna part of the internal cavity of the rod body, in the upper end of which is installed dunk ring to limit the movement of large and small pistons down and side newportnews cavity ring depreciation installed in the large piston to limit its movement together with the small piston upwards. Through the valve to control the flow of gas through the pipeline, through the annular channel with radial channels in the wall of the annular housing through the radial channels and the internal cavity in the shank nadporshnevaya cavity communicated with the atmosphere and with a source of power. Through the valve, through pipelines, through the annular channel with radial channels in the wall of the annular housing through the outer inlet tube, the annular gap between the rod body and the outer inlet tube in communication with the power source. Productivity increases. 1 C.p. f-crystals, 9 Il.

The invention relates to the field of mining and construction and can be used rippers gas-dynamic steps for ripping solid and frozen ground.

It is known by the author. St. USSR 899797, MKI E 02 F 5/30, a device for destruction of solid soil, including housing, screw the tip of the exhaust holes on the side poverkhnostnuyu with feed gas pipeline through the working chamber.

The disadvantages of this device are: 1. Nadporshnevaya cavity pneumatic battery should not be discharged, so as not provided by the device for its discharge.

Therefore, the compressed gas in the pneumatic accumulator is constant, regardless of the location of the Ripper: the object of loosening, in the transport position, in the Parking lot between shifts, when the repair or maintenance of the cultivator.

2. The working chamber is the interior of the rod body, its volume is small and therefore will be a little digging depth per cycle, low productivity and high energy consumption of the process of destruction of the soil.

Digging depth in this device is based on the energy of compressed gas enclosed in podpornoy cavity, because the compressed gas which is in newportnews cavity, cannot be used for loosening soil.

The volume of the working chamber in the device according to ed. St. USSR 899797, MKI E 02 F 5/30, can be increased to a limited extent only by increasing the diameter of the rod body, screwed up in the soil. But with the growth of the diameter of the rod body grows to work on screwing the device into the soil, increases the intensity of the destruction Grun what uchetom power, consumed to drive the compressor, which can be placed on a given base car.

3. The third drawback of the cultivator by ed. St. USSR 899797, MKI E 02 F 5/30, is that it cannot be repaired in the field, as the hollow rod case with screw tip is connected rigidly. The use of detachable joints allowing for the repair, quick replacement in the field, of defective parts.

The closest solution to the proposed design Ripper is a Ripper on author. St. USSR 1421012, MKI 4 E 02 F 5/32 (prototype), including a hollow rod body, kinematically connected and mounted coaxially with the saddle, kinematically associated with the saddle and mounted coaxially with the last bit sleeve with exhaust holes, screw tip, the drive mechanism of the screw tip, a vertical guide shafts are installed with the possibility of longitudinal movement of the brackets attached to them bushings for connection with the guide shafts, valves for controlling the supply of compressed gas and pipelines for the supply of compressed gas from a source of supply to the gas distribution mechanism, made in the form attached on the top of the internal cavity of the rod body, rigidly connected with the brackets annular housing located in its wall two annular channels installed with the possibility of a limited axial movement within the bit sleeve and interaction with the lower end of the valve seat for the message of the annular gap between the seat and the Central inlet tube from the exhaust holes on the bit sleeve having a cavity control and placed in the cavity of the control spring to tighten the valve to the lower end of the saddle.

The kinematic linkage rod body with a saddle, saddle bit sleeve, bit sleeve with a screw tip is made in the form of a splined connection with locking devices for the connection of parts.

In the prototype applied Nezavisimaia in the soil is the main working chamber, the volume of which is determined based on the maximum possible performance of the compressor is placed on the base car, and depending on the frequency of cycles of operation of the cultivator. This allows to increase the depth of cultivation, the productivity of the Ripper.

Used in the original prototype of the node timing allows reliable option differentiated compressed NTA.

The presence in the prototype plug connections allows its repair, quick replacement in the field of defective parts.

The disadvantages of the prototype is that in difficult ground conditions the operator Ripper to save performance (constant depth loosening) is forced to increase the pressure of the compressed gas in the working chamber, as in heavy soil conditions increase the strength characteristics of frozen ground rupture, shear, compression.

If the pressure of the compressed gas generated by the compressor is placed on the gas-dynamic Ripper, is not enough, the operator is forced to reduce the depth of tillage, to reduce the performance of Ripper, and the intensity of the destruction of frozen ground increases.

These drawbacks are due to the fact that in the working chamber is not a device that allows you to get an excessive pressure of the compressed gas is more that can create the compressor is placed on the gas-dynamic Ripper.

If you make structural changes to the prototype, it will require changes in the distribution mechanism to ensure reliable option of filling compressed gas working chamber and its discharge p the Institute of invention - increase productivity by increasing the depth of tillage.

To achieve this, the technical result of the gas-dynamic Ripper is equipped with a large piston with the possibility of axial movement, established in the main working chamber, which is made of concentric stepped holes, large diameter which has a needle valve, a spring for pressing the needle valve to concentric holes formed in the bypass sleeve that is installed in the large piston side newportnews cavity, and from the side of the lower end of the large piston is made smaller diameters of stepped concentric holes for messages through concentric holes formed in the small piston, coaxially attached to a large piston from its lower end face with the possibility of axial movement, established in the main working chamber, in the upper part of the internal cavity of the rod body, the upper end of which it is the dunk ring to limit the movement of large and small pistons down and side newportnews cavity ring depreciation installed in the large piston to limit its movement sovmeschyonnye channels in the wall of the annular housing, through the radial channels and the internal cavity in the shank nadporshnevaya cavity communicated with the atmosphere and with a source of supply, and through the valve to control the flow of compressed gas through pipelines, through the annular channel with radial channels in the wall of the annular housing through the outer inlet tube, the annular gap between the rod body and the outer inlet tube in communication with the power source.

In addition, the feature of gas-dynamic Ripper is that in the lower part of the main working chamber is made of radial openings for communication of the annular gap between the main working chamber and a small piston with the atmosphere, in which filters are installed.

These private distinctive features aimed at achieving the same technical result increased productivity due to the receipt in the annular gap between the rod body and the outer inlet tube gauge pressure compressed gas more that can create the compressor is placed on the gas-dynamic Ripper.

The invention is illustrated graphics, which depict: Fig. 1 gives a General view of the gas-dynamic Ripper with the control system of Fig. 2-the log compressed gas annular gap between the rod body and the outer supply pipe to the pressure, equal to the maximum produced by the compressor of Fig. 3 is a cross section along a - a in Fig. 2; Fig. 4 - position of the large and small pistons in the main working chamber and the rod body at the moment of completing the compressed gas newportnews cavity in the end of the cycle gas compression in the annular gap between the rod body and the outer supply tube; Fig. 5 is a view in section of the ring body; Fig. 6 - section B-B in Fig. 5; Fig. 7 is a cross - section In Fig. 5; Fig. 8 - section G G in Fig. 5;
in Fig. 9 is screwed up in the soil of your equipment (in section) of a Ripper.

Gas-dynamic Ripper contains the rod body 1, to the upper end of which the 2 bolts securing the main working chamber 3 is connected with the hollow shaft 4, the annular body 5 located on the hollow shaft 4 above the main working chamber 3 and is connected with a vertically arranged guide shaft 6 by means of the bracket 7 and covering the shaft 6 bushing 8 with the possibility of longitudinal movement, a protective shield 9, fixedly mounted on the lower end of the guide shaft 6 and having a Central hole 10 of diameter defor the passage through it the rod body 1 of the Ripper (Fig.1).

Vertically from the option axial movement includes a large piston 11 (Fig.2).

To the lower end of the large piston 11 by bolts 12 coaxially attached small piston 13 which is coaxially installed in the main working chamber 3 and in the upper part of the cavity 14 of the rod body 1.

In the large piston 11 is made of concentric stepped hole 15, in large diameters d* which has a needle valve 16, the spring 17 to tighten the needle valve 16 to concentric holes 18 made in the bypass sleeve 19, which is installed in the large piston 11 from newportnews cavity 20 (Fig. 2), and from the side of the lower end of the large piston 11 is made smaller diameters d of the stepped concentric holes 15 for communication with a through concentric holes 21 made in the small piston 13 (Fig. 3 and 4).

In the large piston 11 from newportnews cavity 20 is set to the cushioning ring 22 to limit movement of the big 11 and 13 small pistons up.

The ring 23 depreciation and installed in the upper end of the rod body 1 to limit movement of the big 11 and 13 small piston down (Fig. 4).

In the lower part of the main working chamber 3 is made of radial holes 24 for the message of the annular gap between the main working chamber 3 and the low on Olney Central hole 26, diameter dC, annular channel 27 with the radial channels 28, the annular channel 29 with radial channels 30, the annular channel 31 with radial channels 32 (Fig. 5, 6, 7, 8).

The hollow shank 4 main working chamber 3 is kinematically connected with a drive mechanism (not shown) and is mounted rotatably in the inner cavity of the center hole 26 of the ring body 5, which also established the sleeve 33 with the radial channels 34, the sleeve 35 with the radial channels 36, sleeve 37 with the radial channels 38, the sealing ring 39, the flanges 40 o.

In the inner cavity 41 of the shaft 4, in newportnews cavity 20, in the Central hole 42 of the by-pass sleeve 19, in the Central hole 43 of the large piston 11, in the Central hole 44 of the small piston 13 in the cavity 14 of the rod body 1 along the longitudinal axis coaxially mounted inner 45 and outer 46 of the inlet tube (Fig. 2 and 5).

The internal inlet tube 45 extending from the outer inlet tube 46 in the cavity 14 of the rod body 1 and mounted in the valve 47 and the cavity 48 to control this valve 47 (Fig. 9) is removed from the outer inlet tube 46 in the cavity 41 of the shaft 4 main working chamber 3 (Fig. 5) at a distance L equal to Russ who was 7, 8).

The valve 47 is mounted inside the bit sleeve 49 with the possibility of a limited axial movement and interaction with the lower end of the rod body 1.

The valve 47 is tightened to the lower end of the rod body 1 by a spring 50 (Fig. 9) and closes the exhaust hole 51, which are made radially from the socket toward the outer surface of the bit sleeve 49. Movement of the valve 47 up is limited to the lower end of the rod body 1.

Bit sleeve 49 with the rod body 1 and the screw tip 52 is connected splined connections 53, 54, couplings with lock nuts 55 and 56. Screw the tip 52 is screw blade 57.

The pipe 58 (Fig. 1) through the valve 59 for controlling the supply of compressed gas through the pipe 60, the fitting 61, through the radial channel 62 and the annular channel 27 with the radial channels 28 in the wall of the ring body 5 (Fig. 5 and 6), through radial channels 34 in the sleeve 33 and the radial channels 63 in the shaft 4 is in communication with the internal cavity 41 of the shaft 4.

The inner cavity 41 of the shaft 4 communicates with newportnews cavity 20.

The pipe 58 (Fig. 1) through the pipe 64, through the valve 65 for controlling the supply of compressed gas through the pipe 66, the nozzle 67 through radial channels 36 in the sleeve 35, an annular groove 69 in the shaft 4, having a diameter dtothrough the inner inlet tube 45 communicates with the cavity 48 of the control valve 47 for the message of the annular gap between the rod body 1 and the outer inlet tube 46 with exhaust holes 51 in the discharge sleeve 49 (Fig. 9). The pipe 58 is connected to the source 70 power (Fig. 1).

The pipe 58 for supplying compressed gas from a source 70 of supply through the pipe 71, valve 72 for controlling the supply of compressed gas through the pipe 73, the fitting 74, the radial channel 75 and the annular channel 31 with radial channels 32 in the wall of the ring body 5 (Fig. 1, 5, 8), through radial channels 38 in the sleeve 37, the annular groove 76 in the shaft 4, having a diameter dtothrough the outer inlet tube 46 is in communication with the annular gap between the rod body 1 and the outer inlet tube 46 (Fig. 9).

Operation of gas-dynamic Ripper is as follows.

Drive mechanism (not shown) provides the rotation of the shaft 4 the basis of the working chamber 3, the screwing of the screw tip 52, the bit sleeve 49, the rod body 1 in frozen or firm soil (Fig. 1, figs. 9).

Torque perceive the spline 53, 54, and additional axial couplings 55, resulting in no leakage of compressed gas through the seal when filling the annular gap between the rod body 1 and the outer inlet tube 46, when filling the cavity 48 of the control valve 47.

Simultaneously with the tightening of gas-dynamic Ripper into the ground, the operator opens the valves 59, 65,72 for controlling the supply of compressed gas.

The valve 59 is set by the operator in the position in which the pipe 60 communicates with the atmosphere (Fig. 1).

From source 70 is powered by pipeline 58, through conduit 64, through the valve 65 for controlling the supply of compressed gas through the pipe 66, the fitting 67, through the radial channel 68 and the annular channel 29 with radial channels 30 in the wall of the ring body 5 (Fig. 5 and 7), through radial channels 36 in the sleeve 35, the annular groove 69 in the shaft 4, having a diameter dtothrough the inner inlet tube 45, the compressed gas is supplied into the cavity 48 of the control valve 47 for the message of the annular gap between the rod body 1 and the outer inlet tube 46 with exhaust holes 51 in the discharge sleeve 49 (Fig. 9).

At the same time from a source 70 of the supply piping 58, 71, through the valve 72 to control the flow of compressed gas through the pipe 73, the fitting 74, the radial channels 38 in the sleeve 37, an annular groove 76 in the shaft 4, having a diameter dtothrough the outer conductive tube 46, the compressed gas enters the annular gap between the rod body 1 and the outer conductive tube 46, picking up 13 small and large pistons 11 upwards (Fig. 2 and 9), and through the filter 25, the radial holes 24 in the lower part of the main working chamber 3, the air is sucked into the annular gap between the main working chamber 3 and the small piston 13.

At the same time from newportnews cavity 20 through the cavity 41 in the shaft 4, through the radial channels 63 in the shaft 4, through the radial channels 34 in the sleeve 33, through radial channels 28, the annular channel 27 and the radial channel 62 in the annular body 5, through fitting 61, through line 60 and valve 59 gas released into the atmosphere without creating resistance to movement of large 11 and 13 small piston upward (Fig. 1 and 5), resulting in the annular gap between the rod body 1 and the outer inlet tube 46, the pressure of the compressed gas rises to the maximum generated by the compressor and controlled by the operator by indications of monometr (not shown).

After that, the valve 72 is closed and the valve 59 is switched to a position in which (Fig. 1) from a source 70 of the supply pipe 58, through the valve 5e annular body 5 (Fig. 5 and 6), through radial channels 34 in the sleeve 33 and the radial channels 63 in the shaft 4, the compressed gas is delivered into the internal cavity 41 of the shaft 4, and then in nadporshnevaya cavity 20 (Fig. 4).

When the buildup of excessive pressure of the compressed gas in newportnews cavity 20 will begin moving large 11 and 13 small piston down, will begin a cycle of compression of gas in the annular gap between the rod body 1 and the outer supply tube 46.

At the same time (Fig. 2 and 4) of an annular gap between the main working chamber 3 and the small piston 13 through the radial holes 24, through the filters 25 gas released into the atmosphere without creating resistance to compression of gas in the annular gap between the rod body 1 and the outer supply tube 46. The end of the cycle gas compression in the annular gap between the rod body 1 and the outer supply tube 46 is controlled by the operator by indications of monometr (not shown).

For loosening soil, the operator rotates the valve 65 for controlling the supply of compressed gas in such a position in which the cavity 48 of the control valve 47 communicates with the atmosphere.

The pressure of the compressed gas in the annular gap between the rod body 1 and the outer inlet tube 46 almost instantly moves down participation 51 in the discharge sleeve 49 of an annular gap between the rod body 1 and the outer inlet tube 46 (Fig. 9).

When the pressure of the compressed gas in the annular gap between the rod body 1 and the outer inlet tube 46 will be less than the gas pressure in newportnews cavity 20 (Fig. 4), then the spring 17 under the needle valve 16 will begin to shrink and from newportnews cavity 20 through the openings 18 in the bypass sleeve 19, through the gaps between the concentric stepped hole 15 in the large piston 11 and the needle valve 16, through concentric holes 21 in the small piston 13 compressed gas starts to flow in the annular gap between the rod body 1 and the outer inlet tube 46, the exhaust hole 51 in the discharge sleeve 49, completing the cycle of loosening frozen or solid ground (Fig. 9).

The pressure of the compressed gas in newportnews cavity 20 drops, the spring 17 returns the needle valve 16 in a normally closed condition, compressing the needle valve 16 concentric to the holes 18 in the bypass sleeve 19 (Fig. 4), and spring 50 pressing the valve 47 to the lower end of the rod body 1, resulting in exhaust hole 51 located on the bit sleeve 49, overlap valve 47 (Fig. 9).

Valves 59, 65 for controlling the supply of compressed gas are closed (Fig. 1). Then gasdynamic Ripper re the proposed gas-dynamic Ripper (compared with a known Ripper) - performance is increased by 1.5 times due to the receipt in the annular gap between the rod body 1 and the outer inlet tube 46 30 % of the excess pressure of the compressed gas is greater than can create a compressor, which allowed to increase the depth of loosening 1.2 times.


Claims

1. Gas cultivator, comprising a hollow rod body, kinematically connected and mounted coaxially with the bit sleeve with exhaust holes, kinematically associated with the bit sleeve and mounted coaxially with the last screw tip, upright guide shaft for mounting on base frame of the machine on which you installed with the possibility of longitudinal movement of the bracket with a fixed bushings for connection with the guide shaft, valves for controlling the supply of compressed gas and pipelines for the supply of compressed gas from a source of supply to the gas distribution mechanism, made in the form attached to the upper end of the rod main body of the working chamber with a hollow shank, rigidly connected to the bracket annular body located in the wall of the three annular channels, coaxial of uttanasana bit inside of the sleeve and the interaction with the lower end of the rod of the valve body for communication of the annular gap between the rod body and the outer inlet tube from the exhaust holes on the bit sleeve, having the control cavity and placed in the cavity of the Department of internal inlet tube, a spring for pressing the valve to the lower end of the rod housing, with one of the annular channels in the wall of the annular housing is communicated through the valve for controlling the supply of compressed gas to a pipeline for the supply of compressed gas from the power source and through made in the annular housing radial channels communicated through the inner inlet tube to the cavity of the control valve for the message of the annular gap between the rod body and the outer inlet tube from the exhaust holes on the bit sleeve, characterized in that it has a large piston for axial movement, installed in the main working chamber, which is made of concentric stepped holes, large diameter which has a needle valve, a spring for pressing the needle valve to concentric holes formed in the bypass sleeve that is installed in the large piston side newportnews cavity, and from the side of the lower end of the large piston is made smaller diameters of stepped concentric holes for messages with end-to-end concentric with the possibility of axial movement, established in the main working chamber, in the upper part of the internal cavity of the rod body, the upper end of which it is the dunk ring to limit the movement of large and small pistons down and side newportnews cavity ring depreciation installed in the large piston to limit its movement together with the small piston through the valve for controlling the supply of compressed gas through the pipeline, through the annular channel with radial channels in the wall of the annular housing through the radial channels and the internal cavity in the shank nadporshnevaya cavity communicated with the atmosphere and with a source of power, and through the valve to control the flow of compressed gas through pipelines, through the annular channel with radial channels in the wall of the annular housing through the outer inlet tube, the annular gap between the rod body and the outer inlet tube in communication with the power source.

2. Ripper under item 1, characterized in that the lower part of the main working chamber is made of radial openings for communication of the annular gap between the main working chamber and a small piston with the atmosphere, in which filters are installed.

 

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Gas-dynamic ripper // 2244784

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.

3 dwg

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.

5 dwg

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.

3 dwg

Vibration ripper // 2367747

FIELD: construction.

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.

3 dwg

Impact ripper // 2372447

FIELD: construction.

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.

3 dwg

Impact ripper // 2380489

FIELD: mining.

SUBSTANCE: impact ripper consists of base machine, of mounted frame 1, of hydro-cylinder and pneumatic hammer 3. Pneumatic hammer 3 contains a case with piston-die 5 and tooth 4 installed inside. The ripper is equipped with at least one beam 6 connected to mounted frame 1 by means of rotation axle 7 and balance weight 8. Also pneumatic hammer 3 and balance weight 8 are arranged on beam 6 and designed to travel along it.

EFFECT: increased efficiency of soil ripping and reduced dynamic loads affecting base machine.

3 dwg

Improved ripper tip // 2434998

FIELD: mining.

SUBSTANCE: ripper tip includes replaceable tooth and attached seat in top cover of ripper tip. Ripper tooth is protected against rotation within the above top cover of ripper tip owing to locking heavy-shrink fitting so that the replaceable ripper tooth does not rotate when it is being used. Locking heavy-shrink fitting prevents penetration of solid particles into the gap between the walls of the above tooth and the above attached seat. Tooth has locking cone-shaped stock, and the above seat is provided with cone-shaped hole to be adjoined to the above locking cone-shaped stock. Tooth is cone-shaped and ends with a tip. Tip is made from high-strength material. Ripper tooth includes head section made at least partially from high-strength material. Top cover and ripper tooth form conjugation between seat and stock of ripper tooth having the corresponding shape; at that, seat and stock of ripper tooth have inner cone for formation of clamping cone between top cover and tooth; at that, ripper tooth is removed from cover in case of failure of clamping cone. Seat with inner cone forms some part of section for arrangement of ripper tooth in the cover, and the above stock of ripper tooth having the corresponding shape forms the part of ripper tooth. In stock of ripper tooth and section for arrangement of ripper tooth there made are through transverse channels the axial lines of which are aligned in case of fixture in the seat of stock of ripper tooth, which allows inserting the retaining pin. Head section of ripper tooth includes outward protruding arm enabling removal of ripper tooth. Section for arrangement of ripper tooth includes displacement hole that passes from external section of ripper tip to the area of base of the above seat, which allows displacing the tooth at available corresponding tool.

EFFECT: improving wear resistance and service life and economic effectiveness.

21 cl, 14 dwg

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