Gas-dynamic ripper

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

 

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 device for destruction of solid soil, comprising a hollow rod body, the screw tip from the exhaust holes on the side surface of the working chamber with the inlet of the pipeline, with the control valve exhaust located in the housing of the screw tip and communicating with the inlet of the pipeline and the atmosphere through the three-way valve, the piston is forced displacement of gas from the working chamber with an overflow valve, nadporshnevaya cavity made in the form of a pneumatic accumulator, located in the rod housing and a chamber connected with the working chamber through the bypass valve.

The disadvantages of this device are:

1. The working chamber is only part of the internal cavity of the rod body of the Ripper, 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, since the compressed gas which is in newportnews cavity, not mo is et to be used for loosening the soil.

The energy of the compressed gas contained in the pneumatic accumulator (newportnews cavity), is used only for the forced displacement of gas from the working chamber.

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 ground.

2. Nadporshnevaya cavity - air 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.

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 hollow is Tanguy case, kinematically connected and mounted coaxially with the saddle, kinematically associated with the saddle and mounted coaxially with the last bit sleeve with exhaust holes, kinematically associated with the bit sleeve and mounted coaxially with the last 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 to the upper end of the rod main body of the working chamber with a hollow shank, an internal cavity which is in communication with the internal cavity of the rod housing rigidly connected with the arms of the ring body, 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 for tucked up valve to the lower end of the saddle.

Kinemati the mini-link 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 on the basis of 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 gas in the working chamber and in the chamber of the control valve, and to ensure rapid discharge loosening of the soil.

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

The disadvantage of the prototype is that its design does not work in pulse mode forced displacement of gas from the working chamber to maintain a quasi-permanent wave pressure gas compression on an array of frozen or solid ground to a complete emptying of the working chamber.

This disadvantage is due to the fact that although not screwed up in the soil, the main working chamber and the two shall be pneumatic accumulator for accumulating compressed gas between cycles of loosening, but it cannot be used for the work of the Ripper pulsed forced displacement gas from the internal cavity of the rod body of the Ripper.

You want to make constructive changes to the prototype. In the new design compared with the prototype on author. St. USSR №1421012, MKI 4 E 02 F 5/32 provided:

a) use structurally modified not screwed up in the soil is the main working chamber as a pneumatic battery Ripper mode pulse forced displacement gas from the internal cavity of the rod in the body of the Ripper;

b) increasing the volume of the internal cavity of the rod in the body of the Ripper due to coaxially accommodate not screwed up in the soil of the hollow rod of the frame of the cultivator in the compressed air accumulator, by mounting on the upper end of the hollow rod body of the saddle to limit the upward movement of the piston forced displacement gas from the internal cavity of the rod in the body of the Ripper.

The technical result, which will be achieved by implementation of the invention, the improved performance by increasing the volume of the internal cavity (working chamber) in rod building Ripper and by providing a stable pressure of the exhaust when the forced displacement of gas from the working chamber is pulsed mode, that will save a quasi-permanent wave pressure gas compression on an array of frozen or solid ground to a complete emptying of the internal cavity (working chamber) rod in the case of the Ripper.

To achieve this, the technical result of the gas-dynamic Ripper is equipped with a housing of the pneumatic battery, made in the form of a hollow cylinder with upper and lower flange parts made with them in concentric holes, in which are mounted bolts for coaxially mounting the upper flange of the hollow shank, for coaxially securing the bottom flange of the hull pneumatic accumulator to the flange of the hollow rod body made from its upper end at a distance equal to the height of the housing of the pneumatic accumulator, and on the upper end of the hollow rod housing features a saddle to limit the upward movement of the piston forced displacement gas, and in the case of the screw tip on the top saddle to limit the upward movement of the valve control exhaust installed spring to limit the downward movement of the piston forced displacement of gas in the Central hole which is installed outside of the inlet tube for supplying compressed gas into the internal cavity of the rod body of the Ripper.

The invention is aasnaes graphics, showing:

Figure 1 gives a General view of the gas-dynamic Ripper management system;

Figure 2 - General view of the longitudinal section of the working part of the gas-dynamic Ripper;

Figure 3 is a view in section of the ring body.

Gas-dynamic Ripper includes a housing 1 of a pneumatic accumulator, made in the form of a hollow cylinder with a bottom 2 and top 3 of the flange parts and made them in concentric holes 4, which is installed with the bolts 5 for coaxially mounting the lower flange part 2 of the housing 1 pneumatic accumulator to the flange portion 6 of the hollow rod body 7 Ripper, for coaxially mounting the upper flange portion 3 of the housing 1 pneumatic accumulator to the flange portion 8 of the hollow shaft 9, on which the above housing 1 pneumatic accumulator is a circular casing 10 that is associated with the vertically arranged guide shaft 11 by means of bracket 12 and covering the shaft 11 bushing 13 with the possibility of longitudinal displacement (figure 1).

The flange portion 6 of the hollow rod body 7 Ripper removed from its upper end by a distance equal to the height “H” of the housing 1 pneumatic accumulator (figure 2). Protective screen 14 fixedly mounted on the lower end of the guide shaft 11 and has a Central opening 15 for the passage through it of the hollow is Tagomago housing 7 Ripper (1). Vertically positioned guide shaft 11 is fixed on the frame of the machine base (not shown).

In the inner cavity 16 of the rod body 7 Ripper installed the piston 17 of forced displacement gas (figure 2). And at the upper end of the hollow rod body 7 Ripper installed the saddle 18 to limit the upward movement of the piston 17 of forced displacement gas from the internal cavity 16. The saddle 18 is made the Central hole 19 (figure 2).

The housing 20 of the screw tip with a hollow rod body 7 Ripper associated spline connection 21, a coupling 22 with a nut 23 (figure 2). On the housing 20 of the screw tip is screw the blade 24.

In the cavity 25 of the stepped bore in the housing 20 of the screw tip installed spring 26, the valve 27 controls the exhaust, saddle 28 (figure 2). The valve 27 controls the exhaust tightened to the valve seat 28 by a spring 26 and closes the exhaust holes 29, which are made radially from the socket toward the outer surface of the housing 20 of the screw tip. Movement of the valve 27 controls the exhaust up limited seat 28. In the saddle 28 is made the Central hole 30.

In the cavity 25 of the stepped bore in the housing 20 of the screw tip on the top of the saddle 28 is installed spring 31 to limit the downward movement of the piston 17 forced displacement of gas from in the morning cavity 16 in the rod body 7 Ripper (2).

In the annular body 10 is made of a Central hole 32, the diameter dC, annular channel 33 with the radial channels 34, the annular channel 35 with the radial channels 36, the annular channel 37 with the radial channels 38 (Fig 3).

The hollow shaft 9 is kinematically connected with a drive mechanism (not shown) and is mounted rotatably in the inner cavity of the Central hole 32 of the annular body 10, which also established the sleeve 39 with the radial channels 40, sleeve 41 with the radial channels 42, the sleeve 43 with the radial channels 44, the sealing ring 45, the flanges 46 of the o (3).

In the inner cavity 47 of the shank 9, the Central hole 19 in the saddle 18, the Central hole 48 made in the piston 17 in the cavity 16 of the rod body 7 of the Ripper in the cavity 25 of the housing 20 of the screw tip along the longitudinal axis coaxially installed 49 internal and external 50 of the inlet tube (figure 2, 3). The internal inlet tube 49 extending from the outer inlet tube 50 in the cavity 25 of the housing 20 of the screw tip, installed in the valve 27 controls the exhaust and in the cavity 51 of the management of this valve 27 (figure 2).

The shank 9 is made of a radial hole 52, which is installed outside of the inlet tube 50 and the annular groove 53 with a diameter of dtoin which the tube 50 is fixed (figure 3). And inside the I inlet tube 49, extending from the outer inlet tube 50 in the cavity 47 of the shaft 9, mounted in a radial hole 54, is made in the shank 9, and fixed in the annular groove 55 of the shank 9 (figure 3).

The internal inlet tube 49 is removed from the outer inlet tube 50 in the cavity 47 of the shank 9 at a distance l equal to the distance between the rows of radial channels 36, 38 and communicated with them an annular channels 35, 37 in the annular housing 10 (Fig 3).

The pipe 56 is connected to the power source 57 (Fig 1).

The pipe 56 through the valve 58 to control the flow of compressed gas through the pipe 59, the fitting 60 (figure 1), through the radial channel 61 and the annular channel 33 with the radial channels 34 in the wall of the ring body 10 (figure 3), through radial channels 40 in the sleeve 39 and the radial channels 62 in the shank 9 is in communication with the internal cavity 47 of the shank 9. The internal cavity 47 of the shank 9 communicates with the cavity 63 in the housing 1 of a pneumatic accumulator. The pipe 56 for supplying compressed gas from a source 57 of power through pipes 64, 65, through the valve 66 to control the flow of compressed gas through the pipe 67, the fitting 68 (Fig 1, 3), via the radial channel 69 and the annular channel 35 with the radial channels 36 in the wall of the annular housing 10 through radial channels 42 in the sleeve 41, an annular groove 55 in the shank 9 having a diameter of dtothrough internal is advocasey pipe 49 communicates with the chamber 51 (2) control valve 27 for the message of the annular gap between the seat 28 and the internal inlet tube 49 with the exhaust holes 29 in the housing 20 of the screw tip.

The pipe 56 for supplying compressed gas from a source 57 of supply through the pipe 64, through the valve 70 to control the flow of compressed gas through the pipe 71, the fitting 72 (1), the radial channel 73 and the annular channel 37 with the radial channels 38 in the wall of the ring body 10 (figure 3), through the radial channels 44 in the sleeve 43, the annular groove 53 in the shank 9 having a diameter of dtothrough the outer inlet tube 50 is in communication with the annular gap between the rod body 7 and the outer inlet tube 50, with the cavity 25 in the housing 20 of the screw tip, the annular gap between the seat 28 and the internal inlet tube 49 (figure 2).

Operation of gas-dynamic Ripper is carried out as follows. By means of a drive mechanism (not shown) is provided by the rotation of the hollow shaft 9, the vertical screw housing 20 of the screw tip with the hollow rod body 7 Ripper in frozen or firm soil (figure 1).

Torque perceives spline connection 21, and the axial load - contacting elements of the hollow rod body 7 of the Ripper and the case 20 of the screw tip (figure 2). The nut 23 prevents the unscrewing of the coupling 22, resulting in no leakage of compressed gas through the seal when filling the annular gap between the rod body 7 richlite and outer inlet tube 50, when filling the cavity 25 of the stepped bore in the housing 20 of the screw tip, when filling the annular gap between the seat 28 and the internal inlet tube 49 (figure 2).

Simultaneously with the tightening of gas-dynamic Ripper into the ground, the operator opens the valves 58, 66, 70 for controlling the supply of compressed gas (figure 1). From a source 57 of the supply pipes 56, 64, 65 through the valve 66 to control the flow of compressed gas through the pipe 67, the fitting 68, through the radial channel 69 and the annular channel 35 with the radial channels 36 in the wall of the ring body 10 (figure 1, figure 3), through radial channels 42 in the sleeve 41, an annular groove 55 in the shank 9 having a diameter of dtothrough the inner inlet tube 49 compressed gas is supplied into the cavity 51 of the control valve 27 for the message of the annular gap between the seat 28 and the internal inlet tube 49 with the exhaust holes 29 in the housing 20 of the screw tip (figure 2).

At the same time from a source 57 of the supply pipes 56 and 64 through the valve 70 to control the flow of compressed gas through the pipe 71, the nozzle 72, the radial channel 73 and the annular channel 37 with the radial channels 38 in the wall of the annular housing 10 (Fig 1, 3), through the radial channels 44 in the sleeve 43, the annular groove 53 in the hollow shank 9 having a diameter of dtothrough the outer inlet tube 50, the compressed gas enters the floor is here 25 in the housing 20 of the screw tip, in the annular gap between the rod body 7 Ripper and outer inlet tube 49 (figure 2).

The piston 17 of forced displacement gas moves up and tightened the saddle 18 (figure 2). And from a source 57 of the supply pipe 56 through the valve 58 to control the flow of compressed gas through the pipe 59, the fitting 60, the radial channel 61 and the annular channel 33 with the radial channels 34 in the wall of the annular housing 10 (Fig 1, 3), through radial channels 40 in the sleeve 39, through radial channels 62 in the shank 9, the compressed gas is supplied into the cavity 47 of the shank 9, the annular gap between the housing 1 pneumatic accumulator and a hollow rod body 7 Ripper (1). After screwing the Ripper on the calculated depth of loosening the operator rotates the valve 66 (Fig 1) for controlling the supply of compressed gas in such a position in which the cavity 51 of the control valve 27 communicates with the atmosphere (figure 2). The pressure of the compressed gas in the annular gap between the seat 28 and the internal inlet tube 49 moves down the valve 27 controls the exhaust. The spring 26 under the valve 27 controls the exhaust is compressed.

Starts pulsed release of compressed gas through the exhaust holes 29 in the housing 20 of the screw tip of the cavity 25 in the housing 20 of the screw tip. The piston 17 is moved down, forcibly displacing gas from the annular gap megustanuvas housing 7 Ripper and outer inlet tube 50. The spring 31 absorbs the blow of the piston 17 in the end of the turn (figure 2).

After completion of the cycle of loosening the operator sets the gasdynamic Ripper to a new place loosening. The cycle is repeated.

During maintenance, repair Ripper, after completion of the work on the ground loosening the compressed gas in the annular gap between the housing 1 pneumatic accumulator and a hollow rod body 7, in the inner cavity 47 of the shank 9 (2, 3) is removed by the operator into the atmosphere through the valve 58 for controlling the supply of compressed gas (figure 1).

For this purpose, the operator sets the valve 58 for controlling the supply of compressed gas in such a position in which the pipe 59 is disconnected from the source 57 power supply and connects with the atmosphere (figure 1).

Then through radial channels 62 and 40 in the shank 9 and the sleeve 39 through radial channels 34, the annular channel 33 and the radial channel 61 in the annular body 10 (figure 3), through line 59, through the valve 58 to control the flow of compressed gas from the cavity 47 of the shank 9 of the annular gap between the housing 1 pneumatic accumulator and a hollow rod body 7 and the compressed gas is expelled into the atmosphere (figure 1, 2).

Gas cultivator, comprising a hollow rod body 7, kinematically connected and mounted coaxially with the housing 20 of the screw head with the exhaust on the holes 29, made radially from the socket toward the outer surface of the housing 20 of the screw tip, upright guide shaft 11 for mounting on the frame of the machine base, on which is installed with the possibility of longitudinal movement of the bracket 12 with a fixed bushing 13 for connection with the guide shaft 11, the valves 58, 66, 70 for controlling the supply of compressed gas and pipelines for the supply of compressed gas from a source 57 of the power distribution mechanism, made in the form mounted on the hollow rod body 7 of the housing 1 pneumatic accumulator with a hollow shank 9, rigidly connected to the bracket 12 of the ring body 10 located in panel three annular channels 33, 35, 37, is coaxially installed 49 internal and external 50 of the inlet tube that is installed with the possibility of a limited axial movement within the housing 20 of the screw tip and interaction with the seat 28 of the valve 27 controls the exhaust for the message of the annular gap between the seat 28 and the internal inlet tube 49 with the exhaust holes 29 in the housing 20 of the screw tip having a cavity 51 control and placed in the cavity 51 of the Department of internal inlet tube 49, the spring 26 for tucked up valve 27 controls the exhaust to the valve seat 28 that is installed with the possibility of Ogre is ikenaga axial movement within a hollow rod body 7 of the piston 17 of forced displacement gas, one of the annular channels 35 in the wall of the annular body 10 is communicated through the valve 66 to control the flow of compressed gas from the pipe 56 for supplying compressed gas from a source 57 of nutrition and by made in the annular body 10 radial channels communicated through the inner inlet tube 49 with the cavity 51 of the control valve 27 for the message of the annular gap between the seat 28 and the internal inlet tube 49 with the exhaust holes 29 in the housing 20 of the screw tip, and through the valve 58 to control the flow of compressed gas through pipes 56, 59 through the annular channel 33 with the radial channels 34 in the wall the annular body 10 through radial channels 62 and the inner cavity 47 in the shank 9 of the cavity 63 in the housing 1 pneumatic accumulator communicated with the atmosphere and with a source of 57 power, and through the valve 70 to control the flow of compressed gas through pipes 56, 64, through the annular channel 37 with the radial channels 38 in the wall of the annular housing 10, through the external inlet tube 50 of the annular gap between the seat 28 and the internal inlet tube 49, the cavity 25 of the stepped bore in the housing 20 of the screw tip, the annular gap between the rod body 7 and the outer inlet tube 50 is in communication with the source 57 power supply, characterized in that the housing 1 of the pneumatic accumulator is made in the form on the second cylinder with a bottom 2 and top 3 flange portions, made them in concentric holes 4, which is installed with the bolts 5 for coaxially mounting the upper flange portion 3 of the housing 1 pneumatic accumulator to the flange portion 8 of the hollow shaft 9, for coaxially mounting the lower flange part 2 of the housing 1 pneumatic accumulator to the flange portion 6 of the hollow rod body 7 made from its upper end at a distance equal to the height of the housing 1 pneumatic accumulator, and on the upper end of the hollow rod body 7 has a saddle 18 to limit the upward movement of the piston 17 of forced displacement gas, and in the case 20 of the screw tip on the top of the seat 28 for limit the upward movement of the valve 27 controls the exhaust installed spring 31 to limit the downward movement of the piston 17 forced displacement of gas in the Central hole 48 which is installed outside feeding tube.



 

Same patents:

Gas-dynamic ripper // 2236514
The invention relates to the field of mining and construction and can be used rippers gas-dynamic steps for ripping solid and frozen soils

The invention relates to impact tools that can be used in machines for the development of rock and frozen ground in the mining and construction industries

Ripper // 2223370
The invention relates to equipment for loosening frozen ground and frozen bulk materials

The invention relates to the field of mining and road-building machinery, namely the electromagnetic shock mechanisms, and can be used for the destruction of rocks, branches sludge formations in the ladle for casting metals, the activation of the working bodies of mining machines etc

The invention relates to the construction and road machines and is intended for use in static-dynamic Ripper durable and frozen soils for compaction in confined conditions, fracture of asphalt and concrete pavement of roads and other works

Gas-dynamic ripper // 2209891
The invention relates to the field of mining and construction and can be used rippers gas-dynamic steps for ripping solid and frozen soils

Socalval // 2176699
The invention relates to devices designed for mechanical cleaning coatings

Latinpussy ripper // 2154734
The invention relates to the field of mining and construction, in particular for machines for the destruction of frozen and durable soil gasoinline impact

The invention relates to impact tools that can be used in machines for the development of rock and frozen ground in the mining and construction industries

Front shovel loader // 2139979
The invention relates to the field of mining and construction, in particular for mechanization of loading and movement of soil and other bulk materials

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

Up!