Solid and frozen ground cutting device

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

 

The invention relates to the field of mining and construction and can be used in devices gas-dynamic actions for layer-by-layer destruction array durable and frozen ground.

Known for avtv of the USSR №968228, IPC 3 E 02 F 5/30, a device for layer-by-layer development of frozen soils, including working tip and a tubular housing with exhaust holes, through which the valve is communicated with a tank of compressed gas. On the upper part of the tubular housing fixed hard disk to which the perimeter pivotally suspended from a rod dividers. Each divider is mounted on a hard disk by means of a pivoting head, which is connected with the divider by means of a threaded connection.

The disadvantages of this device are:

1. Rod dividers passive when splitting into fractions of solid or frozen ground, since the flow of exhaust apertures pulse of compressed gas is detached layer of soil from the array and uplift. The reservoir is supported on the rod dividers, but not destroyed by small fractions. This is because at the periphery of the funnel fracture energy of the expanding gases is not enough for a strong impact of soil on the dividers. The result is the formation of oversized pieces (large chips) frozen or solid g is the flying boot. The resulting oversized complicates the use of the developed soil for backfilling trenches and pits, excavation and transportation of soil.

If we increase the share of energy pulse of compressed gas to strike the ground about the rod dividers, it will increase the intensity of the destruction.

2. Rod dividers only partially fulfill the role of a protective screen, as all the pieces are smaller than the distance between the rod dividers will not be crushed, and to move the residual energy of the gas pulse beyond the crater of destruction.

The closest solution to the proposed design Ripper is a Ripper on avtv of the USSR №1421012, IPC 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, kinematically associated with the bit sleeve and mounted coaxially with the latest housing screw tip, a vertical guide shafts for mounting on the frame of the machine base, on which is installed with the possibility of longitudinal movement of the brackets attached to them bushings for connection with the guide shafts, the lower ends of which is mounted a protective screen cents the actual hole for passage of the rod body, 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 shaft mounted through the Central hole is rigidly connected to the brackets of the ring body, which made the Central upper annular channel with radial channels and a Central lower annular channel with radial 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 the control cavity and placed in the cavity of the control spring for tucked up valve to the lower end of the saddle.

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

In the prototype we used an original node timing. The presence of the annular body Central upper annular channel with radial channels and a Central bottom Kohl is avago channel with radial, two valves control allows reliable option differentiated compressed gas in the working chamber and into the cavity of the control valve, and to ensure rapid fault detection and Troubleshooting.

The location of the annular casing above the protective screen and the main working chamber allows for easy mounting on a vertical guide shafts and disassembly of vertically spaced guide shafts when conducting maintenance and repair in the field, which allows to improve the operating conditions of the Ripper.

The presence in the prototype detachable connection with a differentiated perception of stress (torque perceive the spline, and the axial load - contact details Ripper allows you to redistribute the load on the details of the Ripper, to repair, easy replacement in the field of defective seals or parts, which also improves the operating conditions of the Ripper.

The disadvantage of the prototype is that the design is working in the stratied destruction frozen or solid ground, poorly adapted to the crushing of the soil in small fractions. This disadvantage is due to the fact that on the periphery of the funnel fracture energy of the gas pulse becomes weeks is enough to break up the soil into small fractions.

You want to make constructive changes to the prototype. In the new design compared with the prototype on avtv of the USSR №1421012, IPC 4 E 02 F 5/32, provided: to install four additional gas-dynamic Ripper, shank which appropriate place in concentric holes formed in the annular body.

If you make structural changes to the prototype, it will require changes in the distribution mechanism to ensure reliable operation of the device.

These design changes will create additional gas pulses for uniform crushing of the soil fraction.

The technical result, which will be achieved by implementation of the invention, the enhancement of performance and uniformity crushing soil fractions due to the simultaneous impact energy of the gas pulses from the rippers, arranged in concentric holes of the ring body and the Ripper installed in the Central hole of the ring body.

To achieve this technical result shanks four additional gas-dynamic rippers placed in end-to-end concentric holes formed in the annular body, and around each of the through concentric holes made from the upper concentricus the second annular channel with radial channels and lower concentric annular channel with radial channels, one of the top concentric annular channels 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 radial channels and the internal cavity in the shank with the inner cavity of the working chamber and each of the other upper concentric annular channel through radial channels in the annular housing is in communication with the Central upper annular channel, and one of the lower concentric annular channels 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 an annular groove in the shank, through the Central inlet tube to the cavity of the control valve for the message of the annular gap between the rod body and the Central inlet tube from the exhaust holes on the bit sleeve, and every other lower concentric annular channel through radial channels in the annular housing is communicated with the Central lower annular channel.

In addition, the feature of the device for destruction of solid and frozen soils is that the Central upper annular channel through the valve to control what odaca compressed gas, through pipelines, through one of the upper concentric annular channels with radial channels in the wall of the annular housing is in communication with the power source, and the Central lower annular channel through the valve for controlling the supply of compressed gas through pipelines, through one of the lower concentric annular channels with radial channels in the wall of the annular housing communicated with the atmosphere and with a source of power.

On the protective screen is made through four concentric holes for the passage of additional installed rod housings.

These private distinctive features aimed at achieving the same technical result is increased productivity and uniformity crushing soil fractions due to the simultaneous effect of the energy of the five gas pulses to the array developed frozen or solid ground.

The invention is illustrated by drawings.

Figure 1 gives a General view of the device for destruction of solid and frozen ground,

figure 2 is a view As in figure 1;

figure 3 is a view in section of the ring body with the control system;

figure 4 - cross section b-B figure 3;

figure 5 - cross section b-b In figure 3;

figure 6 is screwed up in the soil of your equipment (in section) of one of the rippers.

Device for destruction of solid and frozen soils contains the vertically spaced guide shafts 1, fastened to the frame (not shown) of the machine base, a circular casing 2 that is associated with the vertically spaced guide shaft 1 by means of brackets 3 and covering the shaft 1 bushing 4 with the possibility of longitudinal movement, fixedly mounted on the lower ends of the guide shafts 1 protective screen 5, which is made a Central opening 6 for the passage of the hollow rod body 7 of the Central Ripper and concentric openings 8 for the passage of the hollow rod housings 7 additional rippers (1, 2).

On the flange portion 9 of the hollow rod body 7 of the Central Ripper and flange parts 9 hollow rod housings 7 additional rippers fixed main working chamber 10, which are located above the protective screen 5 (Fig 1)

The case of each of the main working chamber 10 is made in the form of a hollow cylinder with a bottom 11 and top 12 of the flange parts made with them in concentric holes 13, in which are mounted bolts 14 for coaxially mounting the lower flange part 11 of the main body of the working chamber 10 to the flange portion 9 of the hollow rod body 7 of the Central Ripper or flange portion 9 of the hollow rod body 7 additional Ripper for coaxially mounting the upper flange portion 12 of the main body of the working chamber 10 to the flange portion 15 of the hollow XB is Stevica 16 Central Ripper or to the flange part 17 of the hollow shank 18 additional Ripper (1, 2).

In the annular body 2 is made: the Central hole 19 with a diameter d C, Central upper annular channel 20 with the radial channels 21 and 22, the Central lower annular channel 23 with a radial channels 24 and 25 (Fig 3, 4, 5), through concentric holes 26 of diameter d.

Around each of the through concentric holes 26 made in the annular body 2 of the upper concentric annular channel 27 with the radial channels 28 and lower concentric annular channel 29 with radial channels 30 (Fig 3, 4, 5).

The hollow shank 16 is kinematically connected with a drive mechanism (not shown) and is mounted rotatably in the inner cavity of the center hole 19 of the ring body 2, which also established the sleeve 31 with radial channels 32, a sleeve 33 with the radial channels 34, the sealing ring 35, the flanges 36 of the sealing (3, 4, 5).

Each hollow shank 18 additional Ripper kinematically connected with a drive mechanism (not shown) and is mounted rotatably in the inner cavity through concentric holes 26 of the ring body 2, which also established the sleeve 37 with the radial channels 38, sleeve 39 with the radial channels 40, the sealing ring 41, the flanges 42 of the sealing (3, 4, 5).

In the hollow shank 16 of the Central Ripper made radiation is inoe hole 43, which has a Central inlet tube 44, and annular groove 45 in diameter d, in which tube 44 is fixed (Fig 3, 5).

In the hollow shank 18 each additional Ripper a radial hole 46, which has a Central inlet tube 44, and annular groove 47 in diameter d, in which tube 44 is fixed (Fig 3, 5).

Each Central inlet tube 44 along the longitudinal axis mounted in the cavity 48 of the main working chamber 10 in the cavity 49 of the rod body 7, the valve 50 in the cavity 51 of the management of this valve 50 (Fig 1, 3, 6).

The valve 50 is installed inside the bit sleeve 52 with the possibility of a limited axial movement and interaction with the lower end of the rod body 7 (6). The valve 50 is tightened to the lower end of the rod body 7 by the spring 53 and closes the exhaust hole 54, is made radially on the bit sleeve 52. Movement of the valve 50 up is limited to the lower end of the rod body 7.

Bit sleeve 52 with a hollow rod body 7, with the body 55 of the screw tip is installed coaxially and connected splined connections 56 and 57, couplings 58, with lock nuts 59 (6). On the housing 55 of the screw tip is screw the blade 60.

The pipe 61 is connected to the power source 62 (Fig 3). The pipe 61 through line 63, through kr is n 64 for controlling the supply of compressed gas, through the pipe 65, the fitting 66, through the radial channel 67 in the annular housing 2, through one of the upper concentric annular channels 27 with radial channels 28 in the annular housing 2 through radial channels 38 in the sleeve 37, through radial channels 68 in the shank 18 is in communication with the internal cavity 69 of the shank 18 additional Ripper (3, 4).

The inner cavity 69 of the shank 18 additional Ripper communicates with the cavity 48 of the main working chamber 10 (Fig 1, 3).

The pipe 61 through line 63, through the valve 64 to control the flow of compressed gas through the pipe 65, the fitting 66, the radial channel 67 through one of the upper concentric annular channels 27 through radial channel 21 in the annular housing 2 (Fig 3, 4), through the Central upper annular channel 20, through the radial channels 22 in the annular housing 2 through radial channels 32 in the sleeve 31 through radial channels 70 in the shank 16 is communicated with the inner cavity 71 of the shank 16 of the Central Ripper. The inner cavity 71 of the shank 16 of the Central Ripper communicates with the cavity 48 of the main working chamber 10 (Fig 1, 3).

The pipe 61 through line 63, through the valve 64 to control the flow of compressed gas through the pipe 65, the fitting 66, the radial channel 67 through one of the upper concentric annular channels 27 through radial channel 21, through C is tranny upper annular channel 20, radial channels 21 in the annular body 2, through the other of the upper concentric annular channels 27 and radial channels 28 in the annular housing 2 through radial channels 38 in sleeves 37, through radial channels 68 in the shank 18 is in communication with the internal cavity 69 in the shanks 18 and other additional rippers (3, 4).

The pipe 61 through conduit 72, through the valve 73 for controlling the supply of compressed gas through the pipe 74, the nozzle 75, the radial channel 76 in the annular housing 2, through one of the lower concentric annular channels 29 with radial channels 30 in the annular housing 2 through radial channels 40 in the sleeve 39, an annular groove 47 in the shank 18 having a diameter d, through the Central inlet tube 44 communicates with the cavity 51 of the control valve 50 for the message of the annular gap between the rod body 7 and the Central supply pipe 44 from the exhaust holes 54 in the discharge sleeve 52 (3, 5, 6).

The pipe 61 through conduit 72, through the valve 73 for controlling the supply of compressed gas through the pipe 74, the nozzle 75, the radial channel 76 in the annular housing 2, through one of the lower concentric annular channels 29 through radial channel 24 in the annular housing 2 (Fig 3, 5), through the Central lower annular channel 23 through the radial channels 25 in the annular housing 2 through radial channels 34 in the sleeve 33 through the annular groove 45 of the shank 16, having a diameter d, through the Central inlet tube 44 communicates with the cavity 51 of the control valve 50 for the message of the annular gap between the rod body 7 of the main Ripper and the Central inlet tube 44 from the exhaust holes 54 in the discharge sleeve 52 (6).

The pipe 61 through conduit 72, through the valve 73 for controlling the supply of compressed gas through the pipe 74, the nozzle 75, the radial channel 76 in the annular housing 2, through one of the lower concentric annular channels 29 through radial channel 24 in the annular housing 2 (Fig 3, 5), through the Central lower annular channel 23 through radial channels 24 in the annular housing 2, through other lower concentric annular channels 29 and radial channels 30 in the annular housing 2 through radial channels 40 in sleeves 39, through the annular groove 47 in the shank 18 having a diameter d, through the Central inlet tube 44 communicates with the cavities 51 of the control valve 50 for messages annular gap between the rod housings 7 and the Central inlet tube 44 from the exhaust holes 54 in the discharge bushings 52 and other additional rippers (3, 5, 6).

The operation of the device for destruction of solid and frozen soils is as follows. By means of a drive mechanism (not shown) is provided by the rotation of the hollow shank 16 CE the Central Ripper and hollow shank 18 additional rippers, vertical screw housings 55 screw terminals with bit bushings 52 and the hollow rod housings 7 rippers in frozen or firm soil (figure 1).

Torque perceive the spline 56 and 57 and the axial load - contacting elements of the hollow rod body 7 Ripper bit and sleeve 52, the bit sleeve 52 and the housing 55 of the screw tip (6).

The nuts 59 prevent loosening couplings 58, resulting in no leakage of compressed gas when filling the annular gap between the rod body 7 of the Ripper and the Central inlet tube 44 (6) when filling cavities 48 of the main working chambers 10 (figure 1).

Simultaneously screwing the device into the ground, the operator opens the valves 64 and 73 for controlling the supply of compressed gas (figure 3).

From the source 62 to the power supply via pipelines 61 and 63, through the valve 64 to control the flow of compressed gas through the pipe 65, the fitting 66, through the radial channel 67 and one of the upper concentric annular channels 27 with radial channels 28 in the annular housing 2 through radial channels 38 in the sleeve 37, through radial channels 68 in the shank 18, the compressed gas enters the cavity 69 of the shank 18 additional Ripper (3, 4), into the cavity 48 of the main working chamber 10, in the annular gap between the rod body 7 is ripping the La and the Central inlet tube 44 (1, 6).

At the same time from the top of the concentric annular channel 27 through the radial channel 21 in the annular housing 2 (Fig 3, 4), through the Central upper annular channel 20, through the radial channels 22 in the annular housing 2 through radial channels 32 in the sleeve 31 through radial channels 70 in the shank 16, the compressed gas is delivered into the internal cavity 71 of the shank 16 of the Central Ripper (3, 4), into the cavity 48 of the main working chamber 10, in the annular gap between the rod body 7 of the Ripper and the Central inlet tube 44 (Fig 1, 6).

At the same time from a Central upper annular channel 20, through the radial channels 21 in the annular body 2, through the other of the upper concentric annular channels 27 and radial channels 28 in the annular housing 2 through radial channels 68 in the shank 18, the compressed gas is delivered into the internal cavity 69 in the shanks 18 and other additional rippers (3, 4)in the cavity 48 of the main working chambers 10, in the annular gap between the rod housings 7 rippers and the Central inlet tube 44 (Fig 1, 6).

From the source 62 to the power supply via pipelines 61 and 72 through the valve 73 for controlling the supply of compressed gas through the pipe 74, the nozzle 75, the radial channel 76 in the annular housing 2, through one of the lower concentric annular channels 29 with radial channels 30 in the annular housing 2 through p is dialine channels 40 in the sleeve 39, an annular groove 47 in the shank 18 having a diameter d, through the Central conductive tube 44, the compressed gas is supplied into the cavity 51 of the control valve 50 for the message of the annular gap between the rod body 7 and the Central conductive tube 44 from the exhaust holes 54 in the discharge sleeve 52 (Fig 3, 5, 6).

At the same time from the bottom of the concentric annular channel 29 through the radial channel 24 in the annular housing 2 (Fig 3, 5), through the Central lower annular channel 23 through the radial channels 25 in the annular housing 2 through radial channels 34 in the sleeve 33, through an annular groove 45 in the shank 16 having a diameter d, through the Central inlet tube 44, the compressed gas is supplied in the cavity 51 of the control valve 50 for the message of the annular gap between the rod body 7 of the main Ripper and the Central inlet tube 44 from the exhaust holes 54 in the discharge sleeve 52 (6).

At the same time from the Central lower annular channel 23 through radial channels 24 in the annular housing 2, through other lower concentric annular channels 29 and radial channels 30 in the annular housing 2 through radial channels 40 in sleeves 39, through the annular groove 47 in the shank 18 having a diameter d, through the Central inlet tube 44, the compressed gas enters the cavity 51 of the control valve 50 for messages kalawy the gaps between the rod housings 7 and the Central inlet tube 44 from the exhaust holes 54 in the discharge bushings 52 and other additional rippers (3, 5, 6).

After screwing the rippers on the calculated depth of loosening the operator rotates the valve 73 for controlling the supply of compressed gas in such a position in which the cavity 51 of the control valve 50 is communicated with the atmosphere (figure 1, 3, 6). The pressure of the compressed gas in the annular gap between the rod housings 7 rippers and the Central inlet tube 44 moves down the valve 50 controls the exhaust (figure 1, 3, 6). Spring 53 under the valve 50 controls the exhaust compressed. Starts pulsed release of compressed gas through the exhaust holes 54 in the discharge sleeves 52 of an annular gap between the rod housings 7 rippers and the Central inlet tube 44 from the cavity 48 of the main working chambers 10, the inner cavity 71 in the shank 16 of the Central Ripper, from the inner cavity 69 in the shank 18 additional rippers (1, 3, 6).

Frozen or solid ground feels the simultaneous impact of five gas pulses from the rippers, arranged in concentric holes 26 of the ring body 2, and the Ripper set in the center hole 19 of the ring body 2 (Fig 1, 3). This promotes uniform crushing of the soil fractions, increase destruction for the cycle of cultivation, productivity.

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

1. Device for destruction of solid and frozen soils, comprising a hollow rod body 7 of the Central Ripper, kinematically connected and mounted coaxially with the bit sleeve 52, kinematically associated with the bit sleeve 52 and mounted coaxially with the latest housing 55 of the screw tip, a vertical guide shafts 1 for mounting on the frame of the machine base, on which is installed with the possibility of longitudinal movement of the brackets 3 attached to their sleeves 4 for connection with the guide shaft 1, the lower ends of which is mounted a protective screen 5 with a Central opening 6 for the passage of the hollow rod body 7 of the Central Ripper, valves 64 and 73 for controlling the supply of compressed gas and pipelines for the supply of compressed gas from a source 62 of the power distribution mechanism, made in the form attached to the upper end of the hollow rod body 7 of the Central Ripper main working chamber 10 with a hollow shank 16 mounted through the Central hole 19 is rigidly connected to the brackets 3 ring body 2, which made the Central upper annular channel 20 with the radial channels 22 and the Central lower annular channel 23 with a radial channels 25 that is installed with the possibility of limiting the aqueous axial movement within the bit sleeve 52 and interaction with the lower end of the rod body 7 valve 50 for the message of the annular gap between the rod body 7 and the Central inlet tube 44 with the exhaust holes 54 in the discharge sleeve 52 having a cavity 51 control and placed in the cavity 51 of the control of the Central inlet tube 44, the spring 53 to tighten the valve 50 to the lower end of the rod body 7 of the Central Ripper, characterized in that it is equipped with four additional gas-dynamic rippers, the shank 18 which are placed in end-to-end concentric holes 26 made in the annular body 2, and around each of the through concentric holes 26 made upper concentric annular channel 27 with the radial channels 28 and lower concentric annular channel 29 with radial channels 30, one of the top concentric annular channels 27 is communicated through the valve 64 to control the flow of compressed gas from the pipe 61 for supplying compressed gas from a source 62 food and by accomplished in the ring case 2 radial channels communicated through radial channels and the inner cavity 69 in the shank 18 with an internal cavity 48 of the working chamber 10, and every other upper concentric annular channel 27 through radial channels 21 in the annular body 2 is in communication with the Central upper annular channel 20, and one of the lower concentric annular channels 29 is communicated through the valve 73 for controlling the supply of compressed gas from the pipe 61 for supplying compressed the gas from source 62 food and by accomplished in the ring case 2 radial channels communicated through an annular groove 47 in the shank 18, through the Central inlet tube 44 with the cavity 51 of the control valve 50 for the message of the annular gap between the rod body 7 additional Ripper and the Central inlet tube 44 from the exhaust holes 54 in the discharge sleeve 52, and each of the other lower concentric annular channel 29 through radial channels 24 in the annular body 2 is in communication with the Central bottom of the annular channel 23.

2. The device according to claim 1, characterized in that the Central upper annular channel 20 through the valve 64 to control the flow of compressed gas through pipelines, through one of the upper concentric annular channels 27 with radial channels 28 in the annular body 2 is in communication with a source 62 of power, and the Central lower annular channel 23 through the valve 73 for controlling the supply of compressed gas through pipelines, through one of the lower concentric annular channels 29 with radial channels in the annular body 2 communicates with the atmosphere and with a source 62 of power.

3. The device according to claim 1 or 2, characterized in that the shield 5 is made through four concentric openings 8 for the passage of rod housings 7 additional rippers.



 

Same patents:

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

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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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