CN116856973A - Quick supporting device for coal mine tunnel fault - Google Patents

Quick supporting device for coal mine tunnel fault Download PDF

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Publication number
CN116856973A
CN116856973A CN202310981972.2A CN202310981972A CN116856973A CN 116856973 A CN116856973 A CN 116856973A CN 202310981972 A CN202310981972 A CN 202310981972A CN 116856973 A CN116856973 A CN 116856973A
Authority
CN
China
Prior art keywords
telescopic
supporting
coal mine
rod
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310981972.2A
Other languages
Chinese (zh)
Inventor
冯小军
丁增
胡秦境
王恩元
赵雪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN202310981972.2A priority Critical patent/CN116856973A/en
Publication of CN116856973A publication Critical patent/CN116856973A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14Telescopic props
    • E21D15/44Hydraulic, pneumatic, or hydraulic-pneumatic props
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50Component parts or details of props
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50Component parts or details of props
    • E21D15/54Details of the ends of props
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50Component parts or details of props
    • E21D15/54Details of the ends of props
    • E21D15/55Details of the ends of props of prop heads or feet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention belongs to the technical field of coal mine supporting equipment, and provides a rapid supporting device for coal mine tunnel fault crossing, which comprises the following components: a telescopic support rod; the telescopic piece is of a net structure, two ends of the telescopic piece are respectively connected to the sliding rod in a sliding mode through two rotating assemblies, and the two ends of the sliding rod are respectively connected with the telescopic supporting rods through adjusting the relative distance between the two rotating assemblies located on the same side, so that the whole length of the telescopic piece is changed; the mother boards are respectively connected with the telescopic parts through the connecting components, and the opposite side walls of any two adjacent mother boards are respectively connected with the daughter boards through the telescopic parts; the backup pad, backup pad pass through supporting part setting at the motherboard top surface. The invention realizes the following steps: the split structure is convenient for assembling after the device is moved to a designated position, so that the assembling efficiency is improved; the distance of the telescopic piece is adjustable, so that the width of the device suitable for coal mine roadways is guaranteed, and the suitability of the device for coal mine roadways with different sizes is improved.

Description

Quick supporting device for coal mine tunnel fault
Technical Field
The invention belongs to the technical field of coal mine supporting equipment, and particularly relates to a rapid supporting device for coal mine roadway fault crossing.
Background
The coal mine tunnel needs to be dug in the coal mine underground mining process, but as geological structures such as faults exist in underground coal strata, and the risk of broken stone falling or tunnel collapse exists in the construction process of the tunnel passing through the faults, a coal mine supporting device is generally arranged at the position of the tunnel passing through the faults to support the tunnel, so that the tunnel collapse is avoided.
In the prior art, the coal mine supporting device is large in size, and the roadway is narrow, so that the supporting device is long in arrangement time. In addition, because the section sectional areas of the excavation roadway of different tunneling devices are different, the size of the supporting device in the prior art is generally a fixed size, and the supporting device cannot be suitable for the roadway with different sectional areas.
Disclosure of Invention
The invention aims to provide a rapid supporting device for coal mine tunnel fault crossing, which solves the problems, and the split structure provided by the invention is convenient for assembling after the device is moved to a designated position, so that the assembling efficiency is improved; the distance of extensible member is adjustable, and then has guaranteed the width that the device can be suitable for the colliery tunnel, can change the whole height of device through flexible bracing piece, has finally realized the adjustment of the width and the height of tunnel support device, has improved the suitability to different sizes colliery tunnel.
In order to achieve the above object, the present invention provides the following solutions: comprising the following steps:
a telescopic support rod;
the telescopic part is of a net structure, two ends of the telescopic part are respectively connected to the sliding rod in a sliding mode through two rotating assemblies, the whole length of the telescopic part is changed through adjusting the relative distance between the two rotating assemblies located on the same side, and two ends of the sliding rod are respectively connected with the telescopic supporting rod;
the mother boards are respectively connected with the telescopic pieces through the connecting components, and the opposite side walls of any two adjacent mother boards are respectively connected with the two sides of the daughter board through the telescopic parts;
the supporting plate is arranged on the top surface of the motherboard through a supporting part.
Preferably, the rotating assembly comprises a sleeve, the sleeve is sleeved on the sliding rod in a sliding mode, a rotating piece is fixedly connected to the side wall of the sleeve, and the rotating piece is connected with one side end portion of the telescopic piece in a rotating mode.
Preferably, the connecting assembly comprises a connecting rod, one end of the connecting rod is fixedly connected to the bottom surface of the motherboard, the other end of the connecting rod penetrates through the hinging part of the telescopic piece and is fixedly connected with a bottom plate, a limit ring is sleeved on the connecting rod and is fixedly connected with the connecting rod, and the limit ring is in contact with the top surface of the telescopic piece.
Preferably, the telescopic part comprises a fixed block, the fixed block is fixedly connected to one side of the daughter board, which faces the mother board, a through groove is formed in the side wall of the mother board, a limiting cavity is communicated in the through groove, the daughter board is in sliding contact with the through groove, and the fixed block is in sliding contact with the inner wall of the limiting cavity.
Preferably, the supporting part comprises the supporting rod, one end of the supporting rod is fixedly connected with the supporting plate, the other end of the supporting plate is fixedly connected with the top surface of the motherboard, and the supporting plate is provided with an angle adjusting piece.
Preferably, the angle adjusting piece comprises two rotating blocks, the two rotating blocks are connected through a rotating shaft in a rotating mode, and the supporting rod is used for adjusting the angle through the angle adjusting piece.
Preferably, the telescopic support rod, telescopic support rod bottom surface includes the hydraulic telescoping cylinder, hydraulic telescoping cylinder output is connected with the lifter.
Preferably, a first abutting block is fixedly connected to one end of the sliding rod, a through hole is formed in the top of the side wall of the lifting rod, the other end of the sliding rod penetrates through the two through holes of the lifting rod, an external thread is formed in the end, away from the first abutting block, of the sliding rod in a threaded connection mode, a second abutting block is connected with one end of the sliding rod, the first abutting block is in contact with the lifting rod, and the second abutting block is in contact with the other lifting rod.
Preferably, the bottom surface of the side wall of the hydraulic telescopic cylinder is fixedly connected with a fixing plate, and the fixing plate is fixed on the ground through a pin.
Compared with the prior art, the invention has the following advantages and technical effects:
1. the split structure is convenient for assembling after the device is moved to the designated position, so that the assembling efficiency is improved;
2. the distance of extensible member is adjustable, and then has guaranteed the width that the device can be suitable for the colliery tunnel, can change the whole height of device through flexible bracing piece, has finally realized the width and the adjustment of height of device, has improved the suitability to different sizes colliery tunnel.
Drawings
For a clearer description of embodiments of the invention or of the solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that, without inventive faculty, a person skilled in the art may obtain further drawings from these drawings:
FIG. 1 is a schematic structural view of a rapid supporting device for coal mine tunnel fault passing;
FIG. 2 is an enlarged view of a portion of FIG. 1A in accordance with the present invention;
FIG. 3 is a schematic view of a telescopic part according to the present invention;
FIG. 4 is a schematic view of a rotating assembly according to the present invention;
FIG. 5 is a schematic diagram of a second embodiment of the present invention;
FIG. 6 is a schematic diagram of a third embodiment of the present invention;
1, a telescopic supporting rod; 2. a telescoping member; 3. a slide bar; 4. a motherboard; 5. a sub-board; 6. a support plate; 7. a sleeve; 8. a rotating member; 9. a connecting rod; 10. a bottom plate; 11. a limit ring; 12. a fixed block; 13. a through groove; 14. a spacing cavity; 15. a support rod; 16. a rotating block; 17. a rotating shaft; 18. a hydraulic telescopic cylinder; 19. a lifting rod; 20. a first abutment block; 21. a through hole; 22. a second abutment block; 23. a fixing plate; 24. a pin; 25. an outer cylinder; 26. an inner rod; 27. a rotating motor; 28. a first gear; 29. a second gear; 30. a screw; 31. a screw hole; 32. an abutment hole; 33. an abutment block; 34. the groove is rotated.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Embodiment one:
referring to fig. 1 to 4, the invention provides a rapid supporting device for coal mine tunnel fault, which comprises:
a telescopic support rod 1;
the telescopic part 2 is of a net structure, two ends of the telescopic part 2 are respectively connected to the sliding rod 3 in a sliding way through two rotating assemblies, the whole length of the telescopic part 2 is changed by adjusting the relative distance between the two rotating assemblies positioned on the same side, and two ends of the sliding rod 3 are respectively connected with the telescopic supporting rod 1;
the mother boards 4, a plurality of mother boards 4 are respectively connected with the telescopic pieces 2 through connecting components, and two opposite side walls of any two adjacent mother boards 4 are respectively connected with two sides of the daughter board 5 through telescopic parts;
the backup pad 6, backup pad 6 sets up at motherboard 4 top surface through the supporting part.
The both ends of the extensible member 2 that set up have been connected on two slide bars 3 through two rotating assemblies respectively, can realize the control to extensible member 2 overall length through the relative distance between two rotating assemblies of adjustment with one side, and then the distance between two slide bars 3 has been adjusted, extensible member 2 wholly extends when the distance between two rotating assemblies reduces, when the relative distance between two rotating assemblies increases, extensible member 2 wholly reduces, when carrying, extensible member 2 that the volume is less is convenient for carry, can adjust extensible member 2's length according to the roadway width simultaneously, the suitability to different sizes tunnel of device has been improved, because motherboard 4 has set up on extensible member 2 through coupling assembling, therefore when extensible member 2 extends, the distance between two adjacent motherboards 4 increases, the subplate 5 that simultaneously set up has realized between two adjacent motherboards 4 exposes in the external world, the leakproofness of a fender top has been guaranteed, the rubble that drops to the roadway cross fault department has avoided taking place and has been smashed the accident, a plurality of backup pads 6 of setting up in the top surface of motherboard 4 are arc structure, the supporting part that sets up can realize the adjustment of backup pad 6 angle simultaneously, consequently, the top surface 6 and supporting rod 6 can be closely connected with the top surface of the support bar 1, and the high degree of extension device has been guaranteed, and the top surface that the supporting rod is closely connected to the supporting device has been guaranteed, and the high degree of the roadway has been realized, and the roadway has been well and has guaranteed.
Further optimizing scheme, the rotating assembly includes sleeve 7, and sleeve 7 slip cap is established on slide bar 3, and sleeve 7 lateral wall rigid coupling has rotating member 8, and rotating member 8 and expansion piece 2 one side tip rotate to be connected.
As shown in fig. 3, the connecting part at the same side of the telescopic part 2 can move on the sliding rod 3 through the sleeve 7 and the rotating part 8, and the length of the telescopic part 2 connected with the sliding rod is changed through the change of the relative position of the rotating component on the same sliding rod 3, so that the adaptation to roadways with different sizes is realized.
Further optimizing scheme, coupling assembling includes connecting rod 9, and connecting rod 9 one end rigid coupling is in mother board 4 bottom surface, and the articulated department that the other end of connecting rod 9 runs through extensible member 2 and rigid coupling have bottom plate 10, still overlaps on the connecting rod 9 and establishes and the rigid coupling has spacing collar 11, and spacing collar 11 and extensible member 2 top surface contact.
The connecting rod 9 that sets up can regard as the articulated pole of the articulated department of net structure's extensible member 2, and the spacing collar 11 and the bottom plate 10 that set up on the connecting rod 9 have guaranteed simultaneously that connecting rod 9 can not take place with extensible member 2 between longitudinal position's change, have guaranteed the supporting performance of connecting rod 9 to mother board 4 simultaneously to when extensible member 2 takes place to extend or shrink, can drive mother board 4 and take place to extend or shrink.
Further optimizing scheme, the expansion and contraction part includes fixed block 12, and fixed block 12 rigid coupling is in the side of daughterboard 5 towards mother board 4, has seted up logical groove 13 on the lateral wall of mother board 4, and logical inslot 13 intercommunication has spacing chamber 14, daughterboard 5 and logical groove 13 sliding contact, fixed block 12 and spacing chamber 14 inner wall sliding contact.
As shown in fig. 2, when two adjacent mother boards 4 are driven by the telescopic members 2 to move in opposite or opposite directions, the daughter boards 5 slidably connected to the two mother boards 4 can be coated or released, so that the supporting capacity of supporting the roof against broken stones falling from the fault crossing position of the coal mine tunnel is improved, the occurrence of crush injury accidents is avoided, and the fixed block 12 and the limiting cavity 14 ensure that the daughter boards 5 cannot deviate from the limiting range of the mother boards 4.
Further optimizing scheme, the supporting part includes bracing piece 15, bracing piece 15 one end and backup pad 6 rigid coupling, and the other end rigid coupling of backup pad 6 is provided with the angle adjustment piece on backup pad 6 at the top surface of mother board 4.
The supporting rod 15 is arranged to connect the supporting plate 6 with the motherboard 4, and meanwhile, the supporting plate 6 is an arc-shaped plate which is matched with the radian of the top surface of the roadway, so that the laminating performance of the supporting plate to the roadway is guaranteed, and the supporting of the roadway is realized.
Further optimizing scheme, angle adjustment piece includes two rotating blocks 16, rotates through pivot 17 between two rotating blocks 16 and connects, and bracing piece 15 realizes the regulation of angle through angle adjustment piece.
In order to ensure the supporting performance of the supporting rod 15 on the supporting plate 6, the two rotating blocks 16 are provided with the maximum rotating angles, and the rotating angles of the angle adjusting pieces arranged above the mother boards 4 at different positions are different, so that the adjustable angles are increased from the center position of the supporting top surface to two sides.
Further optimizing scheme, flexible bracing piece 1 bottom surface includes hydraulic telescoping cylinder 18, and hydraulic telescoping cylinder 18 output is connected with lifter 19.
The lifting rod 19 can be driven to lift by the hydraulic telescopic cylinder 18, and finally the whole height of the support is adjusted.
Further optimizing scheme, the one end rigid coupling of slide bar 3 has first butt piece 20, and through-hole 21 has been seted up at lifter 19's lateral wall top, and two through-holes 21 of two lifter 19 are run through to the other end of slide bar 3, and the external screw thread has been seted up to the one end that slide bar 3 kept away from first butt piece 20 and threaded connection has second butt piece 22, and first butt piece 20 and a lifter 19 contact, second butt piece 22 and another lifter 19 contact.
After the two sliding rods 3 are connected with the four lifting rods 19, lifting of the two sliding rods 3 can be achieved, and lifting of the supporting structure of the supporting top surface is achieved.
In a further optimized scheme, a fixed plate 23 is fixedly connected to the bottom surface of the side wall of the hydraulic telescopic cylinder 18, and the fixed plate 23 is fixed on the ground through a pin 24.
The telescopic supporting rod 1 can be fixed at a proper position on the ground of a roadway through the cooperation of the pin 24 and the fixing plate 23.
When the device is used, firstly, each part is conveyed to a designated position in a roadway, then four telescopic supporting rods 1 are fixed at proper positions through pins 24, a hydraulic telescopic cylinder 18 is controlled to lower a lifting rod 19 to the lowest position, one threaded end of a sliding rod 3 is conveyed into a through hole 21 of the lifting rod 19, sleeves 7 on two rotating components at one end of a telescopic piece 2 are sleeved on the sliding rod 3, then the other sliding rod 3 respectively penetrates into the through hole 21 of the lifting rod 19 and two sleeves 7 at the other end of the telescopic piece 2 and respectively fixes the two sliding rods 3 through two second abutting blocks 22, and as the telescopic piece 2 drives a motherboard 4 to be arranged at proper positions, the adaptation of the transverse distance of supporting and the transverse distance of the roadway is realized, the hydraulic telescopic cylinder 18 is controlled to lift the lifting rod 19, and the height of the roadway can be integrally adapted to the supporting.
Embodiment two:
as shown in fig. 5, the only difference between the present embodiment and the first embodiment is that the lengths of the two sliding rods 3 are increased, and a plurality of telescopic members 2 can be sleeved on the sliding rods 3, so that the supporting length of the top surface of the support is increased, and the supporting capability of crossing faults on a roadway with a longer length is improved.
Embodiment III:
as shown in fig. 6, the difference between the present embodiment and the first and second embodiments is that the telescopic support rod 1 includes an outer cylinder 25 and an inner rod 26, the inner rod 26 is slidably connected in the outer cylinder 25, a rotating motor 27 is fixedly connected to a side wall of the outer cylinder 25, a first gear 28 is fixedly connected to an output end of the rotating motor 27, a rotating groove 34 is formed below a side wall of the outer cylinder 25, the first gear 28 penetrates through the rotating groove 34 and is engaged with a second gear 29, the second gear 29 is rotatably connected to a bottom surface of an inner cavity of the outer cylinder 25, one end of a screw 30 is fixedly connected to a top surface of the second gear 29, a screw hole 31 is formed in a bottom surface of the inner rod 26, the screw 30 is in threaded connection with the screw hole 31, an abutting hole 32 is formed in an outer wall of the outer cylinder 25, an abutting block 33 is in threaded connection with an inner thread of the abutting hole 32, and the abutting block 33 and the inner rod 26 are in contact with each other.
The first gear 28 and the second gear 29 are driven to rotate by starting the rotating motor 27, so that the screw 30 rotates, the inner rod 26 is lifted in the inner cavity of the outer cylinder 25 in the rotating process of the screw 30, and meanwhile, the height of the inner rod 26 can be fixed by manually tightening the abutting block 33.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims (9)

1. The utility model provides a colliery tunnel cross fault quick support device which characterized in that includes:
a telescopic support rod (1);
the telescopic part (2), the telescopic part (2) is of a net structure, two ends of the telescopic part (2) are respectively connected to the sliding rod (3) in a sliding way through two rotating assemblies, the whole length of the telescopic part (2) is changed by adjusting the relative distance between the two rotating assemblies positioned on the same side, and two ends of the sliding rod (3) are respectively connected with the telescopic supporting rod (1);
a plurality of mother boards (4) are respectively connected with the telescopic pieces (2) through connecting components, and two opposite side walls of any two adjacent mother boards (4) are respectively connected with two sides of a daughter board (5) through telescopic parts;
the supporting plate (6), the supporting plate (6) is arranged on the top surface of the motherboard (4) through a supporting part.
2. The rapid supporting device for coal mine roadway fault passing according to claim 1, wherein: the rotating assembly comprises a sleeve (7), the sleeve (7) is sleeved on the sliding rod (3) in a sliding mode, a rotating piece (8) is fixedly connected to the side wall of the sleeve (7), and the rotating piece (8) is connected with one side end portion of the telescopic piece (2) in a rotating mode.
3. The rapid supporting device for coal mine roadway fault passing according to claim 2, wherein: the connecting assembly comprises a connecting rod (9), one end of the connecting rod (9) is fixedly connected to the bottom surface of the motherboard (4), the other end of the connecting rod (9) penetrates through the hinged portion of the telescopic piece (2) and is fixedly connected with a bottom plate (10), a limit ring (11) is further sleeved on the connecting rod (9) and fixedly connected with the connecting rod, and the limit ring (11) is in contact with the top surface of the telescopic piece (2).
4. The rapid supporting device for coal mine roadway fault passing according to claim 2, wherein: the telescopic part comprises a fixed block (12), the fixed block (12) is fixedly connected to one side of the daughter board (5) facing the mother board (4), a through groove (13) is formed in the side wall of the mother board (4), a limiting cavity (14) is communicated in the through groove (13), the daughter board (5) is in sliding contact with the through groove (13), and the fixed block (12) is in sliding contact with the inner wall of the limiting cavity (14).
5. A rapid supporting device for coal mine tunnel fault passing according to claim 3, wherein: the supporting part comprises a supporting rod (15), one end of the supporting rod (15) is fixedly connected with the supporting plate (6), the other end of the supporting plate (6) is fixedly connected with the top surface of the motherboard (4), and an angle adjusting piece is arranged on the supporting plate (6).
6. The rapid supporting device for coal mine tunnel fault passing according to claim 5, wherein: the angle adjusting piece comprises two rotating blocks (16), the two rotating blocks (16) are connected in a rotating mode through a rotating shaft (17), and the supporting rod (15) is used for adjusting the angle through the angle adjusting piece.
7. The rapid supporting device for coal mine tunnel fault passing according to claim 6, wherein: the bottom surface of the telescopic supporting rod (1) comprises a hydraulic telescopic cylinder (18), and the output end of the hydraulic telescopic cylinder (18) is connected with a lifting rod (19).
8. The rapid supporting device for coal mine tunnel fault passing according to claim 7, wherein the rapid supporting device comprises; further comprises: the one end rigid coupling of slide bar (3) has first butt piece (20), through-hole (21) have been seted up at the lateral wall top of lifter (19), the other end of slide bar (3) runs through two of lifter (19) through-hole (21), the slide bar (3) is kept away from the one end of first butt piece (20) has been seted up external screw thread and threaded connection has second butt piece (22), first butt piece (20) with one lifter (19) contact, second butt piece (22) with another lifter (19) contact.
9. The rapid supporting device for coal mine tunnel fault passing according to claim 7, wherein the rapid supporting device comprises; further comprises: the bottom surface of the side wall of the hydraulic telescopic cylinder (18) is fixedly connected with a fixing plate (23), and the fixing plate (23) is fixed on the ground through a pin (24).
CN202310981972.2A 2023-08-07 2023-08-07 Quick supporting device for coal mine tunnel fault Pending CN116856973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310981972.2A CN116856973A (en) 2023-08-07 2023-08-07 Quick supporting device for coal mine tunnel fault

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310981972.2A CN116856973A (en) 2023-08-07 2023-08-07 Quick supporting device for coal mine tunnel fault

Publications (1)

Publication Number Publication Date
CN116856973A true CN116856973A (en) 2023-10-10

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ID=88230675

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310981972.2A Pending CN116856973A (en) 2023-08-07 2023-08-07 Quick supporting device for coal mine tunnel fault

Country Status (1)

Country Link
CN (1) CN116856973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117231262A (en) * 2023-11-10 2023-12-15 阳泉市广凯机械制造有限公司 Mining roadway support device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117231262A (en) * 2023-11-10 2023-12-15 阳泉市广凯机械制造有限公司 Mining roadway support device
CN117231262B (en) * 2023-11-10 2024-02-02 阳泉市广凯机械制造有限公司 Mining roadway support device

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