CN113431611A - Temporary reinforcing and supporting device for coal mine tunnel in coal mining excavation - Google Patents
Temporary reinforcing and supporting device for coal mine tunnel in coal mining excavation Download PDFInfo
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- CN113431611A CN113431611A CN202110501392.XA CN202110501392A CN113431611A CN 113431611 A CN113431611 A CN 113431611A CN 202110501392 A CN202110501392 A CN 202110501392A CN 113431611 A CN113431611 A CN 113431611A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/04—Provisional protective covers for working space for use in drifting galleries
Abstract
The invention belongs to the technical field of coal mining auxiliary equipment, and particularly relates to a temporary reinforcing and supporting device for a coal mine tunnel in coal mining tunneling. This coal mine tunnel temporary reinforcement supporting device in coal mining tunnelling, through setting up the temporary support device of second, the pneumatic cylinder drives first piston rebound, and then extrude the inside hydraulic oil of second installation cavity, hydraulic oil gets into in the section of thick bamboo that goes up and down, and then promote the second piston, the second piston drives installation pole rebound, make through the articulated of installation pole and connecting seat strut the piece when the contact with the tunnel top, make and strut piece and tunnel top contact, it makes mutual weighing apparatus connection and then struts the roof and the lateral wall in tunnel to strut the installation between the piece to two through the hinge to two.
Description
Technical Field
The invention relates to the technical field of coal mining auxiliary equipment, in particular to a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation.
Background
Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines. When the coal layer is far away from the ground surface, a tunnel is excavated to the underground to mine the coal, which is a mineworker coal mine. When the coal seam is very close to the earth surface, the coal is generally excavated by directly stripping the earth surface, which is an open pit coal mine. The vast majority of coal mines in China belong to underground coal mines. Coal mines encompass a large area above ground and below ground as well as associated facilities. Coal mines are reasonable spaces excavated by humans when excavating geological formations rich in coal and generally include roadways, wells, and mining surfaces, among others. Coal is the most predominant solid fuel, one of the flammable organic rocks. It is formed by that the flourishing plants grown in a certain geological age are gradually piled up into a thick layer in a proper geological environment, and are buried in the water bottom or silt, and then undergo the natural coalification action in a long geological age. In the geologic periods of the world, most coal is produced in the stratums of the stone charm, the pilaster, the Jurassic and the third era, which is an important coal-forming era. The carbon content of the coal is generally 46-97%, and the coal is brown to black and has dull to metallic luster. According to different coalification degrees, the coal can be divided into peat, lignite, bituminous coal and anthracite;
the colliery can form a tunnel at the in-process of underground excavation, can make the roof rock stratum above the coal seam lose the support, original pressure balance suffers destruction, the coal seam roof takes place to warp under the effect of overburden rock pressure, destroy, consequently, need in time strut the coal seam roof and guarantee to strut intensity, the roof rock stratum that makes the working face very easily takes place to fracture and fall, cause the loss of casualties and property and equipment, current supporting device is difficult to guarantee that the atress at tunnel roof position is the same when supporting the tunnel, and then the effect of supporting device to the tunnel has been reduced.
Disclosure of Invention
The invention provides a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation, which is based on the technical problem that the existing supporting device is difficult to support the tunnel and simultaneously ensures that the stress of the top wall part of the tunnel is the same, so that the effect of the supporting device on the tunnel is reduced.
The invention provides a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation, which comprises a supporting and mounting device, a first temporary supporting device and a second temporary supporting device, wherein the first temporary supporting device and the second temporary supporting device are respectively arranged at two sides and above the supporting and mounting device;
the supporting and mounting device consists of a supporting base, a mounting column fixedly connected with the upper surface of the supporting base and a ground grabbing component fixedly connected with the lower surface of the supporting base;
the first temporary supporting device is composed of a first mounting block fixedly connected with the surface of one side of the mounting column, a first expansion block in sliding insertion with the outer surface of the first mounting block, a second expansion block in sliding insertion with the outer surface of the first expansion block and a third expansion block in sliding insertion with the outer surface of the second expansion block;
the second temporary supporting device comprises a second mounting block, and the second mounting block is fixedly mounted on the upper surface of the mounting column.
Preferably, grab ground part including grab ground sucking disc, a plurality of the mouth that loses heart has been seted up to grab ground sucking disc's interior top surface, the one end of disappointing mouth runs through the inner wall of grabbing ground sucking disc and extends to the one side surface that supports the base.
Preferably, a first installing port has been seted up to a side surface of erection column, the mounting groove has been seted up to one side inner wall of first installing port, the inner wall fixed mounting of mounting groove has drive motor, drive motor's the fixed cover of main shaft has been cup jointed first belt pulley, two a side surface of first installation piece all has a first pivot, two through bearing fixedly connected with the outer surface of first pivot has all fixedly cup jointed second belt pulley and third belt pulley, two be connected through first belt drive between second belt pulley and the first belt pulley.
Preferably, the equal fixedly connected with slider of both sides surface of first installation piece, first expansion piece and second expansion piece, the spout has all been seted up to the both sides internal surface of first expansion piece, second expansion piece and third expansion piece, and is a plurality of the surface of slider respectively with a plurality of the inner wall slip grafting of spout.
Preferably, the surface of one side of first installation piece, first expansion piece and second expansion piece all fixedly connected with second pivot, it is a plurality of the surface of second pivot all movably cup joints the fourth belt pulley, two the equal fixedly connected with first drive belt and the second drive belt of week side of third belt pulley.
Preferably, the first transmission belt is sequentially contacted with the peripheral side surface of the fourth belt pulley above the third belt pulley, and the tail end of the first transmission belt is fixedly connected with one surface of the upper end of the third expansion block.
Preferably, the second drive belt in proper order with be located the third belt pulley below the side face contact all around of fourth belt pulley, and the end of second drive belt with a fixed surface of third expansion piece lower extreme is connected, two the equal fixedly connected with first connecting plate in a side surface of third expansion piece, a side fixed surface of first connecting plate is connected with first block rubber, the inner wall fixed mounting of first block rubber has first pressure switch.
Preferably, first installation cavity has been seted up to the upper surface of erection column, the inner wall fixed mounting of first installation cavity has the pneumatic cylinder, the second installation cavity has been seted up to the inner wall of second installation piece, the inner wall of second installation cavity is provided with hydraulic oil, first opening has been seted up to the inner bottom wall of second installation cavity, just the one end of first opening runs through and extends to the lower surface of second installation piece, the hydraulic stem of pneumatic cylinder extends to the inner wall of second installation cavity through first opening.
Preferably, a first piston is movably sleeved on the inner wall of the second installation cavity, one end of a hydraulic rod of the hydraulic cylinder is fixedly connected with the lower surface of the first piston, a second communicating port is formed in the inner top wall of the second installation cavity, the second communicating port is formed in the plurality of lifting cylinders, a lifting cylinder is fixedly connected to the inner wall of the second communicating port, a third communicating port is formed in the inner top wall of the lifting cylinder, the second piston is movably sleeved on the inner wall of the lifting cylinder, an installation rod is fixedly connected to the upper surface of the second piston, and the outer surface of the installation rod is movably sleeved on the inner wall of the third communicating port.
Preferably, a plurality of hinge interface has been seted up to the upper end of installation pole, the inner wall of hinge interface articulates through the round pin axle activity has the connecting seat, and is a plurality of the equal fixed connection of upper surface of connecting seat has a support piece, and every two are adjacent all through hinge activity hinge joint between the support piece, the last fixed surface of supporting the piece is connected with the second rubber piece, and is a plurality of the connector has all been seted up to the upper surface of second rubber piece, the inner wall fixed mounting of connector has second pressure switch.
The beneficial effects of the invention are as follows:
1. through setting up the support installation device, will grab ground sucking disc through the gravity of first temporary support device and the interim supporting device of second and push down, grab the inside air of ground sucking disc and discharge through the mouth that loses heart, increase the power of grabbing of supporting the base through grabbing ground sucking disc.
2. Through setting up first temporary support device, driving motor drives first belt pulley and rotates, drive two second belt pulleys through first belt pulley and rotate, and then drive two third belt pulleys and rotate to same direction simultaneously, carry out the rolling through third belt pulley to first drive belt and second drive belt, cooperation through spout and slider, and then drive the third piece that expands in proper order, second expansion piece and the outside expansion of first expansion piece, make the contact of the both sides inner wall in first block and tunnel, and then strut the both sides inner wall in tunnel.
3. Through setting up the interim supporting device of second, the pneumatic cylinder drives first piston rebound, and then extrudees the inside hydraulic oil of second installation cavity, hydraulic oil gets into in the section of thick bamboo that goes up and down, and then promote the second piston, the second piston drives installation pole rebound, make support the piece when the contact with the tunnel top through the articulated of installation pole and connecting seat, make support piece and tunnel top contact, it makes mutual weighing apparatus connection and then strut the roof and the lateral wall in tunnel to strut the installation between the piece to two through the hinge and strut between the piece and make a plurality of pieces.
Drawings
Fig. 1 is a schematic view of a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 2 is a sectional view of a mounting column structure of a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 3 is a sectional view of the installation of the internal gear and the rack of the installation column of the temporary reinforcing and supporting device for the coal mine tunnel in coal mining excavation, which is provided by the invention;
fig. 4 is a sectional view of a support base structure of a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 5 is an exploded view of a first temporary support device of a temporary reinforcing support device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 6 is an exploded view of a second temporary support device of the temporary reinforcing support device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 7 is a sectional view of a second mounting block structure of a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 8 is a perspective view of a connection seat structure of a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 9 is an enlarged view of a structure at a position a in fig. 2 of the temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation according to the present invention;
fig. 10 is an enlarged view of a structure at a position B in fig. 7 of the temporary reinforcing and supporting device for the coal mine tunnel in coal mining excavation according to the present invention.
In the figure: 1. a support base; 11. mounting a column; 12. a ground gripping suction cup; 13. an air escape opening; 14. A spring tube; 15. a through hole; 16. a connector valve; 2. a first mounting block; 21. a first expansion block; 22. a second expansion block; 23. a third expansion block; 24. a first mounting port; 25. a drive motor; 26. a first pulley; 27. a second pulley; 28. a third belt pulley; 29. a first belt; 210. a slider; 211. a chute; 212. a fourth belt pulley; 213. a first drive belt; 214. a second belt; 215. a first connecting plate; 216. a first rubber block; 217. a first pressure switch; 218. a rack; 219. a gear; 3. a second mounting block; 31. a first mounting cavity; 32. a hydraulic cylinder; 33. a second mounting cavity; 34. a first communication port; 35. a first piston; 36. a second communication port; 37. a lifting cylinder; 38. a third communication port; 39. a second piston; 310. mounting a rod; 311. hinging the interface; 312. a connecting seat; 313. a support block; 314. a hinge; 315. a second rubber block; 316. a connecting port; 317. a second pressure switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-10, a temporary reinforcing and supporting device for a coal mine tunnel in coal mining excavation comprises a supporting and mounting device, a first temporary supporting device and a second temporary supporting device.
The supporting and mounting device comprises a supporting base 1, a mounting column 11 is fixedly connected to the upper surface of the supporting base 1, in order to increase the ground grabbing force between the supporting base 1 and the ground, a ground grabbing component is fixedly connected to the lower surface of the supporting base 1, the ground grabbing component comprises ground grabbing suckers 12, in order to enable air in the ground grabbing suckers 12 to flow out, air release ports 13 are formed in the inner top surfaces of the ground grabbing suckers 12, one ends of the air release ports 13 penetrate through the inner walls of the ground grabbing suckers 12 and extend to the outer surface of one side of the supporting base 1, the air in the ground grabbing suckers 12 flows out through the air release ports 13, and the supporting force and the ground grabbing force between the supporting base 1 and the ground are increased;
the ground-grasping suction cups 12 are pressed downward by the gravity of the first temporary support means and the second temporary support means, the air inside the ground-grasping suction cups 12 is discharged through the air-escape openings 13, and the ground-grasping force of the support base 1 is increased by the ground-grasping suction cups 12.
As shown in fig. 1-2, 5 and 9, the first temporary supporting devices are disposed on two sides of the supporting and mounting device, in order to drive the two first temporary supporting devices simultaneously, a first mounting opening 24 is formed on one side surface of the mounting column 11, a mounting groove is formed on one side inner wall of the first mounting opening 24, a driving motor 25 is fixedly mounted on the inner wall of the mounting groove, a first belt pulley 26 is fixedly sleeved on a main shaft of the driving motor 25, a first rotating shaft is fixedly connected to one side surface of each of the two first mounting blocks 2 through a bearing, a second belt pulley 27 and a third belt pulley 28 are fixedly sleeved on the outer surface of each of the two first rotating shafts, in order to drive the two second belt pulleys 27 to rotate in the same direction, so that the two second belt pulleys 27 are in transmission connection with the first belt pulley 26 through a first belt 29, a first expansion block 21 is disposed on the outer surface of the first mounting block 2, the outer surface of the first expansion block 21 is provided with a second expansion block 22, and the outer surface of the second expansion block 22 is provided with a third expansion block 23;
in order to make the third expansion block 23, the second expansion block 22 and the first expansion block 21 sequentially expand outwards, sliding blocks 210 are fixedly connected to the outer surfaces of two sides of the first installation block 2, the first expansion block 21 and the second expansion block 22, sliding grooves 211 are formed in the inner surfaces of two sides of the first expansion block 21, the second expansion block 22 and the third expansion block 23, the outer surfaces of the sliding blocks 210 are respectively in sliding insertion connection with the inner walls of the sliding grooves 211, in order to control the third expansion block 23, the second expansion block 22 and the first expansion block 21, a second rotating shaft is fixedly connected to one side surface of each of the first installation block 2, the first expansion block 21 and the second expansion block 22, a fourth belt pulley 212 is movably sleeved on the outer surfaces of the second rotating shafts, and a first transmission belt 213 and a second transmission belt 214 are fixedly connected to the peripheral side surfaces of the two third belt pulleys 28;
in order to bring the third expansion block 23, the second expansion block 22 and the first expansion block 21 to move smoothly outward, the first transmission belt 213 is sequentially contacted with the peripheral side surface of the fourth belt pulley 212 located above the third belt pulley 28, the end of the first transmission belt 213 is fixedly connected with one surface of the upper end of the third expansion block 23, the second transmission belt 214 is sequentially contacted with the peripheral side surface of the fourth belt pulley 212 located below the third belt pulley 28, the end of the second transmission belt 214 is fixedly connected with one surface of the lower end of the third expansion block 23, in order to make the first connection plate 215 closely contact with the inner wall of the roadway, the first connection plate 215 is fixedly connected with one side surface of the two third expansion blocks 23, and the first rubber block 216 is fixedly connected with one side surface of the first connection plate 215, in order to make the first temporary support device closely contact with the inner wall of the roadway, the driving motor 25 is controlled to stop, a first pressure switch 217 is fixedly arranged on the inner wall of the first rubber block 216;
in addition, holes can be formed in the two sides of the mounting column 11 along the width direction of the mounting column for mounting the spring tube 14, the other end of the spring tube 14 is fixed to the top of the first connecting plate 215, a through hole 15 is formed in the surface of the spring tube 14, a connector valve 16 communicated with other spring tubes 14 is fixedly mounted at the outer end of the spring tube 14, the spring tube 14 can be stretched along with the expansion of the whole device, so that the operation of preventing dust, low-concentration gas, cooling and fire in a coal mine can be realized, and the corresponding water pipe, ventilation pipe and negative pressure fan are connected to one end of the outermost part of the spring tube 14, so that the water-spraying type dust removal, fire extinguishing, cooling and gas concentration reduction can be realized; or the dust and the gas on the coal mine are absorbed by using the ventilation pipe and the negative pressure fan.
The driving motor 25 drives the first belt pulley 26 to rotate, the first belt pulley 26 drives the two second belt pulleys 27 to rotate, then the two third belt pulleys 28 are driven to rotate towards the same direction, the first transmission belt 213 and the second transmission belt 214 are wound through the third belt pulley 28, and the third expansion block 23, the second expansion block 22 and the first expansion block 21 are sequentially driven to expand outwards through the matching of the sliding groove 211 and the sliding block 210, so that the first rubber block 216 is in contact with the inner walls of two sides of the roadway, and the inner walls of two sides of the roadway are supported; meanwhile, a torsion spring for reverse contraction can be fixedly sleeved on a shaft at the winding position of each belt and each transmission belt, so that the whole device can automatically reset when not used.
As shown in fig. 1, 6-8 and 10, the second temporary supporting device includes a second mounting block 3, the second temporary supporting device is disposed above the supporting and mounting device, in order to drive the second temporary supporting device, a first mounting cavity 31 is formed on the upper surface of the mounting column 11, and a hydraulic cylinder 32 is fixedly mounted on the inner wall of the first mounting cavity 31; the hydraulic cylinder 32 can be a double-output piston rod type, a rack 218 can be fixedly mounted at the bottom of a piston rod at the bottom of the hydraulic cylinder, and a gear 219 is fixedly sleeved on the shaft of the two second belt pulleys 27, so that the rack 218 is meshed with the gear 219 to drive the second belt pulleys 27 to rotate when the hydraulic cylinder 32 extends and retracts, and further the driving motor 25 is replaced by the same driving source for driving, on one hand, the driving energy consumption can be reduced, and on the other hand, the whole linkage can be realized, and the control is convenient.
Afterwards, a second mounting cavity 33 is formed in the inner wall of the second mounting block 3, hydraulic oil is arranged on the inner wall of the second mounting cavity 33, a first communication port 34 is formed in the inner bottom wall of the second mounting cavity 33, one end of the first communication port 34 penetrates through and extends to the lower surface of the second mounting block 3, and a hydraulic rod of the hydraulic cylinder 32 extends to the inner wall of the second mounting cavity 33 through the first communication port 34.
In order to push hydraulic oil in the second installation cavity 33, the first piston 35 is movably sleeved on the inner wall of the second installation cavity 33, one end of a hydraulic rod of the hydraulic cylinder 32 is fixedly connected with the lower surface of the first piston 35, the second communicating port 36 is formed in the inner top wall of the second installation cavity 33, in order to control the lifting of the installation rod 310 in the lifting cylinder 37, the lifting cylinder 37 is fixedly connected with the inner walls of the second communicating ports 36, the inner top wall of the lifting cylinder 37 is provided with the third communicating port 38, the second piston 39 is movably sleeved on the inner walls of the lifting cylinders 37, the installation rod 310 is fixedly connected with the upper surface of the second piston 39, and the outer surface of the installation rod 310 is movably sleeved with the inner wall of the third communicating port 38.
In order to enable the supporting blocks 313 to be attached to the inner wall of a roadway, hinge joints 311 are formed at the upper ends of the mounting rods 310, the inner wall of each hinge joint 311 is movably hinged with a connecting seat 312 through a pin shaft, the supporting blocks 313 are fixedly connected to the upper surfaces of the connecting seats 312, so that the supporting blocks 313 deflect after being contacted with the inner wall of the roadway through the hinging of the connecting seats 312 and the mounting rods 310, every two adjacent supporting blocks 313 are movably hinged through hinge hinges 314, the upper surfaces of the supporting blocks 313 are fixedly connected with second rubber blocks 315, in order to control the hydraulic cylinder to stop after a second temporary supporting device is contacted with the inner wall of the roadway, connecting ports 316 are formed in the upper surfaces of the second rubber blocks 315, and second pressure switches 317 are fixedly mounted on the inner walls of the connecting ports 316;
The working principle is as follows: when the temporary supporting device is used, the supporting and mounting device supports the first temporary supporting device and the second temporary supporting device, the first temporary supporting device supports the inner walls of two sides of a roadway, and the second temporary supporting device supports the top of the roadway;
the supporting base 1 presses the ground-grasping suction cups 12 downwards due to gravity, air in the ground-grasping suction cups 12 is exhausted through the air-escape openings 13, and the ground-grasping force of the supporting base 1 is increased through the ground-grasping suction cups 12;
firstly, the driving motor 25 is controlled to drive the first belt pulley 26 to rotate, the two second belt pulleys 27 are driven to rotate by a belt between the first belt pulley 26 and the two second belt pulleys 27, then the two third belt pulleys 28 are driven to simultaneously rotate towards the same direction, the first transmission belt 213 and the second transmission belt 214 are wound by the third belt pulley 28, the third expansion block 23, the second expansion block 22 and the first expansion block 21 are sequentially driven to expand outwards by the matching of the chute 211 and the sliding block 210, and then the first connecting plate 215 and the first rubber block 216 are driven to move, so that the first rubber block 216 is in contact with the inner walls of two sides of the roadway, and then the inner walls of two sides of the roadway are supported, and after the first pressure switch 217 is subjected to certain pressure, the driving motor 25 is controlled to stop;
control pneumatic cylinder 32 starts, drive first piston 35 rebound, and then extrude the inside hydraulic oil of second installation cavity 33, hydraulic oil gets into in the section of thick bamboo 37 that goes up and down, and then promote second piston 39, second piston 39 drives installation pole 310 rebound, make support piece 313 when the contact with the tunnel top through the articulated of installing pole 310 and connecting seat 312, make support piece 313 and tunnel top contact, make through hinge 314 to support the installation between the piece 313 two and make mutual weighing apparatus connection between a plurality of support pieces 313, after second pressure switch 317 receives certain pressure, control pneumatic cylinder 32 stop work, can strut the roof and the lateral wall in tunnel.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a coal mine tunnel temporary reinforcement supporting device in coal mining tunnelling which characterized in that: the device comprises a supporting and mounting device, a first temporary supporting device and a second temporary supporting device, wherein the first temporary supporting device and the second temporary supporting device are respectively arranged on two sides and above the supporting and mounting device;
the supporting and mounting device is composed of a supporting base (1), a mounting column (11) fixedly connected with the upper surface of the supporting base (1) and a ground grabbing component fixedly connected with the lower surface of the supporting base (1);
the first temporary supporting device is composed of a first mounting block (2) fixedly connected with the surface of one side of the mounting column (11), a first expansion block (21) in sliding insertion connection with the outer surface of the first mounting block (2), a second expansion block (22) in sliding insertion connection with the outer surface of the first expansion block (21), and a third expansion block (23) in sliding insertion connection with the outer surface of the second expansion block (22);
the second temporary supporting device comprises a second mounting block (3), and the second mounting block (3) is fixedly mounted on the upper surface of the mounting column (11).
2. The temporary reinforcing and supporting device for the coal mine tunnel in coal mine excavation according to claim 1, characterized in that: grab ground part and including grabbing ground sucking disc (12), a plurality of it has seted up run-flat mouth (13) to grab the interior top surface of ground sucking disc (12), the one end of run-flat mouth (13) runs through the inner wall of grabbing ground sucking disc (12) and extends to the one side surface of supporting base (1).
3. The temporary reinforcing and supporting device for the coal mine tunnel in coal mine excavation according to claim 1, characterized in that: first installing port (24) have been seted up to a side surface of erection column (11), the mounting groove has been seted up to one side inner wall of first installing port (24), the inner wall fixed mounting of mounting groove has driving motor (25), first belt pulley (26), two have been cup jointed to the main shaft of driving motor (25) a side surface of first installation piece (2) all is through the first pivot of bearing fixedly connected with, two the surface of first pivot is all fixed the cover and is connect second belt pulley (27) and third belt pulley (28), two through first belt (29) transmission connection between second belt pulley (27) and first belt pulley (26).
4. The temporary reinforcing and supporting device for the coal mine tunnel in coal mine excavation according to claim 1, characterized in that: the equal fixedly connected with slider (210) of both sides surface of first installation piece (2), first expansion piece (21) and second expansion piece (22), spout (211) have all been seted up to the both sides internal surface of first expansion piece (21), second expansion piece (22) and third expansion piece (23), and is a plurality of the surface of slider (210) is respectively with a plurality of the inner wall of spout (211) slides and pegs graft.
5. The temporary reinforcing and supporting device for the coal mine tunnel in coal mine excavation according to claim 3, characterized in that: the equal fixedly connected with second pivot in a side surface of first installation piece (2), first expansion piece (21) and second expansion piece (22), it is a plurality of fourth belt pulley (212), two have all been cup jointed in the activity to the surface of second pivot the equal fixedly connected with first drive belt (213) and second drive belt (214) of week side of third belt pulley (28).
6. The temporary reinforcing and supporting device for the coal mine tunnel in coal mine excavation according to claim 5, characterized in that: first drive belt (213) in proper order with be located third belt pulley (28) top the side face contact all around of fourth belt pulley (212), and the end of first drive belt (213) with a fixed surface connection of third expansion piece (23) upper end.
7. The temporary reinforcing and supporting device for the coal mine tunnel in coal mine excavation according to claim 1, characterized in that: second drive belt (214) in proper order with be located third belt pulley (28) below the side face contact all around of fourth belt pulley (212), and the end of second drive belt (214) with a fixed surface of third expansion piece (23) lower extreme is connected, two the equal fixedly connected with first connecting plate (215) of a side surface of third expansion piece (23), a side fixed surface of first connecting plate (215) is connected with first block rubber (216), the inner wall fixed mounting of first block rubber (216) has first pressure switch (217).
8. The temporary reinforcing and supporting device for the coal mine tunnel in coal mine excavation according to claim 1, characterized in that: first installation cavity (31) have been seted up to the upper surface of erection column (11), the inner wall fixed mounting of first installation cavity (31) has pneumatic cylinder (32), second installation cavity (33) have been seted up to the inner wall of second installation piece (3), the inner wall of second installation cavity (33) is provided with hydraulic oil, first intercommunication mouth (34) have been seted up to the inner bottom wall of second installation cavity (33), just the one end of first intercommunication mouth (34) runs through and extends to the lower surface of second installation piece (3), the hydraulic stem of pneumatic cylinder (32) extends to the inner wall of second installation cavity (33) through first intercommunication mouth (34).
9. The temporary reinforcing and supporting device for the coal mine tunnel in the coal mine excavation process, according to claim 8, is characterized in that: first piston (35) has been cup jointed in the inner wall activity of second installation cavity (33), the hydraulic stem one end of pneumatic cylinder (32) with the lower fixed surface of first piston (35) is connected, second intercommunication mouth (36) have been seted up to the interior roof of second installation cavity (33), and is a plurality of the inner wall fixedly connected with lift section of thick bamboo (37) of second intercommunication mouth (36), and the interior roof of lift section of thick bamboo (37) has seted up third intercommunication mouth (38), and is a plurality of second piston (39) has been cup jointed in the inner wall activity of lift section of thick bamboo (37), just the last fixed surface of second piston (39) is connected with installation pole (310), the surface of installation pole (310) with the inner wall activity of third intercommunication mouth (38) is cup jointed.
10. The temporary reinforcing and supporting device for the coal mine tunnel in the coal mine excavation process of claim 9, wherein: it is a plurality of hinge interface (311) have been seted up to the upper end of installation pole (310), the inner wall of hinge interface (311) articulates through the round pin axle activity has connecting seat (312), and is a plurality of piece (313) are strutted to the equal fixedly connected with of upper surface of connecting seat (312), and every two are adjacent it is articulated all through hinge (314) activity between piece (313) to strut, it is connected with second rubber block (315), a plurality of to strut the last fixed surface of piece (313) the connector (316) has all been seted up to the upper surface of second rubber block (315), the inner wall fixed mounting of connector (316) has second pressure switch (317).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110501392.XA CN113431611A (en) | 2021-05-08 | 2021-05-08 | Temporary reinforcing and supporting device for coal mine tunnel in coal mining excavation |
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| CN202110501392.XA CN113431611A (en) | 2021-05-08 | 2021-05-08 | Temporary reinforcing and supporting device for coal mine tunnel in coal mining excavation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776354A (en) * | 2022-06-20 | 2022-07-22 | 徐州华超矿山设备有限公司 | Mine ore mining supporting platform |
-
2021
- 2021-05-08 CN CN202110501392.XA patent/CN113431611A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776354A (en) * | 2022-06-20 | 2022-07-22 | 徐州华超矿山设备有限公司 | Mine ore mining supporting platform |
| CN114776354B (en) * | 2022-06-20 | 2022-08-26 | 徐州华超矿山设备有限公司 | Mine ore mining supporting platform |
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Application publication date: 20210924 |