CN112576289A - Coal mine tunnel supporting device - Google Patents
Coal mine tunnel supporting device Download PDFInfo
- Publication number
- CN112576289A CN112576289A CN202011441313.2A CN202011441313A CN112576289A CN 112576289 A CN112576289 A CN 112576289A CN 202011441313 A CN202011441313 A CN 202011441313A CN 112576289 A CN112576289 A CN 112576289A
- Authority
- CN
- China
- Prior art keywords
- roadway
- bevel gear
- supporting
- plate
- coal mine
- 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.)
- Withdrawn
Links
- 230000008093 supporting effect Effects 0.000 title claims abstract description 72
- 239000003245 coal Substances 0.000 title claims abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/46—Telescopic props with load-measuring devices; with alarm devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a coal mine roadway supporting device, which comprises a bottom plate, wherein a first roadway supporting and protecting plate and a second roadway supporting and protecting plate are symmetrically arranged at the upper end of the bottom plate, a groove is formed in one side of the first roadway supporting and protecting plate, a controller is arranged in the groove, supporting sleeves are fixedly arranged at the upper ends of the first roadway supporting and protecting plate and the second roadway supporting and protecting plate, a first driving bevel gear and a first driven bevel gear are driven to rotate through rotation of a rocking handle, a one-way screw rod is driven to rotate, a lifting pipe is driven to ascend through rotation of the one-way screw rod, a first sliding chute is matched with a first sliding block to limit the ascending and descending pipe during ascending and descending, the second driving bevel gear and a second driven bevel gear are driven to rotate through rotation of a T-shaped rod, a two-way screw rod is driven to rotate through rotation of the second driven bevel gear, and a telescopic pipe sleeved by a second internal thread is, and supporting two sides of the inner wall of the roadway top supporting guard plate.
Description
Technical Field
The invention belongs to the technical field of roadway support equipment, and particularly relates to a coal mine roadway support device.
Background
As a traditional energy source, coal always has a great proportion in national economy of China, and along with the construction of modern mines, the safety smoothness of roadways is guaranteed in response to various underground geological environments, so that the safety problem is a major key point.
The basic purpose of supporting the roadway is to alleviate and reduce the movement of surrounding rocks so that the section of the roadway cannot be excessively reduced, and simultaneously prevent the scattered and damaged surrounding rocks from falling off, and the roadway supporting effect not only depends on the supporting force of a support, but also is influenced by a series of factors such as the nature of the surrounding rocks, the supporting force, the contractibility, the installation density of the support, the morning and evening of the installation time of the support, the installation quality of the support, the contact mode (point contact or surface contact) of the support and the surrounding rocks.
When the existing coal mine roadway supporting device supports a roadway generated by coal mine excavation, the heights of all parts of the top of the roadway are possibly different, so that all parts of the top of the roadway are difficult to be well supported, and the supporting position of the roadway supporting device cannot be adjusted according to the height of the top of the roadway.
Therefore, a coal mine roadway supporting device is provided to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a coal mine roadway supporting device, and aims to solve the problems that the conventional coal mine roadway supporting device is difficult to support all parts of the top of a roadway well and cannot adjust the supporting position of the roadway supporting device according to the height of the top of the roadway due to different heights of all parts of the top of the roadway in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a coal mine roadway supporting device comprises a bottom plate, wherein a first roadway supporting and protecting plate and a second roadway supporting and protecting plate are symmetrically installed at the upper end of the bottom plate, a groove is formed in one side of the first roadway supporting and protecting plate, a controller is arranged in the groove, supporting sleeves are fixedly installed at the upper ends of the first roadway supporting and protecting plate and the second roadway supporting and protecting plate, a rocking handle is rotatably connected to one side of each supporting sleeve, an anti-slip pad is fixedly sleeved at one end of each rocking handle, a first driving bevel gear is fixedly sleeved on the outer wall of the other end of each rocking handle, a second rotating bearing is fixedly installed at the inner bottom of each supporting sleeve, an one-way screw rod is fixedly inserted into the inner ring of each second rotating bearing, a first driven bevel gear is fixedly sleeved on the outer wall of one end of each one-way screw rod, the first driving bevel gear is meshed with the first driven bevel gear, and, one end of the lifting pipe is positioned inside the supporting sleeve, a sealing gasket is arranged between the lifting pipe and the supporting sleeve, the upper ends of two groups of lifting pipes are fixedly provided with a roadway top supporting guard plate, the inner top of the roadway top supporting guard plate is fixedly provided with a connecting plate, one side of the connecting plate is provided with a methane sensor, the bottom of the connecting plate is fixedly connected with a telescopic sleeve, one side of the telescopic sleeve is rotatably connected with a T-shaped rod, the outer wall of one end of the T-shaped rod is fixedly sleeved with a second driving bevel gear, the second driving bevel gear is meshed with a second driven bevel gear, the inner ring of the second driven bevel gear is fixedly inserted with a two-way lead screw, two ends of the two-way lead screw are symmetrically sleeved with two groups of telescopic pipes, slots are symmetrically arranged on two sides of the inner wall of the top roadway supporting guard plate, and one, the alarm is fixedly arranged at the upper end of the telescopic sleeve, a lower cable fixing ring is fixedly connected to the upper end of the telescopic sleeve through a fixing block, and an upper cable fixing ring is fixedly connected to the lower cable fixing ring through a bolt.
Preferably, a first rotating bearing is embedded in one side of the supporting sleeve, and one end of the rocking handle is fixedly inserted into an inner ring of the first rotating bearing.
Preferably, the inner ring of the lifting pipe is provided with a first internal thread corresponding to the one-way screw rod, one end of the one-way screw rod is in threaded connection with the first internal thread, and the lifting pipe is located above the driven bevel gear.
Preferably, two sets of first chutes are symmetrically formed in the inner wall of the supporting sleeve, two sets of first sliding blocks are arranged in the first chutes in a sliding mode, the first chutes and the first sliding blocks are arranged in a corresponding mode, and two sets of first sliding blocks are arranged at one ends of the first sliding blocks and connected with the outer wall of the lifting pipe.
Preferably, a third rotating bearing is embedded in one side of the telescopic sleeve, and one end of the T-shaped rod is fixedly inserted into an inner ring of the third rotating bearing.
Preferably, second internal threads corresponding to the two-way screw rods are arranged inside the two groups of extension tubes, and two ends of each two-way screw rod are in threaded connection with the two groups of second internal threads.
Preferably, the outer wall of the telescopic pipe is symmetrically connected with two groups of second sliding blocks, and the inner wall of the telescopic pipe is provided with sliding grooves for the two groups of second sliding blocks to slide.
Preferably, one side of the first roadway supporting and protecting plate is hinged with a box door through a hinge, and a door lock is arranged on the box door.
Preferably, a protective net is arranged on the outer side of the bottom plate, and the first roadway supporting guard plate, the second roadway supporting guard plate and the roadway roof supporting guard plate are all located inside the protective net.
The invention has the technical effects and advantages that: compared with the prior art, the coal mine roadway supporting device provided by the invention has the following advantages:
1. according to the invention, the rocking handle rotates to drive the first driving bevel gear and the first driven bevel gear to rotate, the one-way screw rod is driven to rotate, the lifting pipe is driven to ascend through the rotation of the one-way screw rod, the first sliding groove is matched with the first sliding block to limit the lifting pipe during ascending and descending, and the roadway top support guard plate is lifted through the ascending and descending of the lifting pipe, so that the problem that the roadway top support in the roadway support device cannot be adjusted according to the height of the roadway top due to different heights of the roadway top in the conventional coal mine roadway support device is solved to a certain extent.
2. According to the invention, through the design of the structures such as the methane sensor, the alarm and the controller, the controller is electrically connected with the methane sensor and the alarm through the wires, so that the increase of the content of the coal gas in the roadway can be pre-warned, and the harm is avoided.
3. According to the invention, through the design of the structures such as the lower cable fixing ring, the upper cable fixing ring and the bolt, the cable wires in the roadway are integrated, so that a larger space is vacated, and the problems of personnel tripping and other problems caused by scattered placement are avoided.
4. According to the invention, through the design of the structures such as the roadway top support guard plate, the telescopic sleeve, the T-shaped rod, the second driving bevel gear, the two-way screw rod, the second driven bevel gear, the telescopic pipe, the second internal thread, the second sliding chute, the second sliding block and the like, the T-shaped rod rotates to drive the second driving bevel gear and the second driven bevel gear to rotate, the second driven bevel gear rotates to drive the two-way screw rod to rotate, the telescopic pipe sleeved by the second internal thread is stretched, two sides of the inner wall of the roadway top support guard plate are supported, and the roadway top support guard plate can play an auxiliary supporting role in supporting the top of the roadway.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the support sleeve of the present invention;
FIG. 3 is a schematic sectional view of the telescopic tube of the present invention;
FIG. 4 is a schematic structural view of the lower cable retaining ring and the upper cable retaining ring of the present invention;
fig. 5 is a schematic side view of the first roadway support plate according to the present invention.
In the figure: 1. a base plate; 2. a first roadway support plate; 3. a second roadway supporting plate; 4. a support sleeve; 5. a rocking handle; 6. a first rotating bearing; 7. a first drive bevel gear; 8. a second rotary bearing; 9. a one-way screw rod; 10. a driven bevel gear; 11. a lifting pipe; 12. a first internal thread; 13. a first chute; 14. a first slider; 15. a gasket; 16. supporting guard plates at the top of the roadway; 17. a connecting plate; 18. a telescopic sleeve; 19. a T-shaped rod; 20. a third rotating bearing; 21. a second drive bevel gear; 22. a bidirectional screw rod; 23. a second driven bevel gear; 24. a telescopic pipe; 25. a second internal thread; 26. a second chute; 27. a second slider; 28. a cable fixing ring is arranged; 29. a cable fixing ring is arranged; 30. a bolt; 31. a methane sensor; 32. an alarm; 33. a slot; 34. a non-slip mat; 35. a groove; 36. a controller; 37. a box door; 38. a door lock; 39. and (4) a protective net.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a coal mine roadway supporting device as shown in figures 1-5, which comprises a bottom plate 1, wherein a first roadway supporting plate 2 and a second roadway supporting plate 3 are symmetrically installed at the upper end of the bottom plate 1, a groove 35 is formed in one side of the first roadway supporting plate 2, a controller 36 is arranged inside the groove 35, a box door 37 is hinged to one side of the first roadway supporting plate 2 through a hinge, and a door lock 38 is arranged on the box door 37, so that the controller 36 is protected through the box door 37 and the door lock 38, and an irrelevant person is prevented from touching the controller 36 to modify the controller 36.
The equal fixed mounting in upper end of backplate 3 is supported in first tunnel 2 and second tunnel has support sleeve 4, one side of support sleeve 4 is rotated and is connected with rocking handle 5, embedded first rotating bearing 6 in one side of support sleeve 4, the fixed inner circle of pegging graft in first rotating bearing 6 of one end of rocking handle 5, the fixed cover of one end of rocking handle 5 is equipped with slipmat 34, can play anti-skidding effect when rotating rocking handle 5 through slipmat 34, the fixed cover of having connect first initiative bevel gear 7 on the other end outer wall of rocking handle 5, can rotate through rocking handle 5 and drive first initiative bevel gear 7 and the part of its connection and rotate.
Supporting sleeve 4's interior bottom fixed mounting has second rolling bearing 8, the fixed grafting of inner circle of second rolling bearing 8 has one-way lead screw 9, fixed cover has connect first driven bevel gear 10 on the one end outer wall of one-way lead screw 9, first initiative bevel gear 7 meshes with first driven bevel gear 10, elevator pipe 11 has been cup jointed on the one-way lead screw 9, elevator pipe 11's inner circle is provided with the first internal thread 12 corresponding with one-way lead screw 9, one end and the 12 threaded connection of first internal thread of one-way lead screw 9, and elevator pipe 11 is located the top of first driven bevel gear 10, can drive elevator pipe 11 that cup joint on the one-way lead screw 9 through first initiative bevel gear 7 and the meshing rotation of first driven bevel gear 10 and rise.
The one end of fall way 11 is located support sleeve 4's inside, two sets of first spouts 13 have been seted up to the symmetry on support sleeve 4's the inner wall, it is provided with first slider 14 all to slide in two sets of first spouts 13, first spout 13 is the corresponding setting with first slider 14, and the one end of two sets of first sliders 14 is all fixed and fall way 11's outer wall connection, be provided with sealed pad 15 between fall way 11 and the support sleeve 4, sealed pad 15 sets up to elastic sealing pad, can mutually support through first spout 13 and first slider 14 and carry on spacingly when falling fall way 11.
The fixed lane roof backplate 16 that is provided with in upper end of two sets of fall way 11, lane roof backplate 16 sets up to arch lane roof backplate, and the fixed connecting plate 17 that is provided with in top of lane roof backplate 16, one side of connecting plate 17 are provided with methane sensor 31, and methane sensor 31 passes through wire and 36 electric connection of controller, and accessible controller 36 controls the setting to methane sensor 31's response methane concentration.
Bottom fixedly connected with telescopic tube 18 of connecting plate 17, one side of telescopic tube 18 is rotated and is connected with T type pole 19, one side of telescopic tube 18 is embedded to have third rolling bearing 20, the fixed inner circle of pegging graft in third rolling bearing 20 of one end of T type pole 19, fixed second drive bevel gear 21 that has cup jointed on the one end outer wall of T type pole 19, the meshing has second driven bevel gear 23 on the second drive bevel gear 21, the fixed two-way lead screw 22 that has pegged graft of inner circle of second driven bevel gear 23, two-way lead screw 22 sets up to the two-way lead screw 22 that the screw thread is reverse setting, can rotate through T type pole 19 and drive second drive bevel gear 21 and the meshing of second driven bevel gear 23, it rotates with its part that cup joints to drive two-way lead screw 22 through second driven bevel gear 23.
The two ends of the two-way screw rod 22 are symmetrically provided with two sets of extension tubes 24, the two sets of extension tubes 24 are internally provided with second internal threads 25 corresponding to the two-way screw rod 22, the two ends of the two-way screw rod 22 are in threaded connection with the two sets of second internal threads 25, the outer wall of the extension tube 24 is symmetrically connected with two sets of second sliding blocks 27, the inner wall of the extension tube 18 is provided with second sliding grooves 26 for the two sets of second sliding blocks 27 to slide, slots 33 are symmetrically formed in two sides of the inner wall of the roadway top support guard plate 16, one ends of the two sets of extension tubes 24 are inserted into the two sets of slots 33 in a sliding mode, the extension tubes 24 can be limited when rotating through the mutual matching of the second sliding grooves 26 and the second.
The alarm 32 is fixedly arranged at the upper end of the telescopic sleeve 18, the alarm 32 is electrically connected with the controller 36 through a wire, the alarm 32 is controlled and set by the controller 36 to alarm, the lower cable fixing ring 28 is fixedly connected at the upper end of the telescopic sleeve 18 through a fixing block, the upper cable fixing ring 29 is fixedly connected with the lower cable fixing ring 28 through a bolt 30, cable wires in a roadway can be integrated through the lower cable fixing ring 28, the upper cable fixing ring 29 and the bolt 30, more space is vacated, personnel tripping or other problems caused by scattered placement are avoided, a protective net 39 is arranged on the outer side of the bottom plate 1, and the first roadway supporting plate 2, the second roadway supporting plate 3 and the roadway top supporting plate 16 are all located inside the protective net 39, so that the supporting capability of the roadway supporting device can be improved through the protective net 39, and the roadway supporting device can also be provided with a waterproof effect through grouting the protective net 39.
The working principle is as follows: when the device is used, according to the height of the top of a roadway, the rocking handle 5 rotates to drive the first driving bevel gear 7 and the first driven bevel gear 10 to rotate, the unidirectional screw rod 9 is driven to rotate, the lifting pipe 11 is driven to ascend through the rotation of the unidirectional screw rod 9, the first sliding groove 13 is matched with the first sliding block 14 to limit the ascending and descending of the lifting pipe 11, the roadway top support guard plate 16 is lifted through the ascending and descending of the lifting pipe 11 to support the top of the roadway, cable wires and the like in the roadway are integrated through the structural design of the lower cable fixing ring 28, the upper cable fixing ring 29, the bolts 30 and the like to vacate a larger space, the T-shaped rod 19 rotates to drive the second driving bevel gear 21 and the second driven bevel gear 23 to rotate, the bidirectional screw rod 22 is driven to rotate through the rotation of the second driven bevel gear 23, the telescopic pipe 24 sleeved with the second internal thread 25 stretches out and draws back, and draws back both sides of, the roadway top supporting plate 16 can conveniently support the top of the roadway to achieve an auxiliary supporting effect, and the controller 36 can be electrically connected with the methane sensor 31 and the alarm 32 through leads to early warn the increase of the content of the coal gas in the roadway.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a coal mine tunnel supporting device, includes bottom plate (1), its characterized in that: a first roadway support guard plate (2) and a second roadway support guard plate (3) are symmetrically installed at the upper end of the bottom plate (1), a groove (35) is formed in one side of the first roadway support guard plate (2), a controller (36) is arranged in the groove (35), a support sleeve (4) is fixedly installed at the upper ends of the first roadway support guard plate (2) and the second roadway support guard plate (3), a rocking handle (5) is rotatably connected to one side of the support sleeve (4), an anti-slip pad (34) is fixedly sleeved at one end of the rocking handle (5), a first driving bevel gear (7) is fixedly sleeved on the outer wall of the other end of the rocking handle (5), a second rotating bearing (8) is fixedly installed at the inner bottom of the support sleeve (4), an one-way screw rod (9) is fixedly inserted into the inner ring of the second rotating bearing (8), a first driven bevel gear (10) is fixedly sleeved on the outer wall of one end of the one-way screw rod (9), the first driving bevel gear (7) is meshed with the first driven bevel gear (10), a lifting pipe (11) is sleeved on the one-way screw rod (9), one end of the lifting pipe (11) is located inside the supporting sleeve (4), a sealing gasket (15) is arranged between the lifting pipe (11) and the supporting sleeve (4), a roadway top supporting plate (16) is fixedly arranged at the upper end of the lifting pipe (11), a connecting plate (17) is fixedly arranged at the inner top of the roadway top supporting plate (16), a methane sensor (31) is arranged on one side of the connecting plate (17), a telescopic sleeve (18) is fixedly connected to the bottom of the connecting plate (17), a T-shaped rod (19) is rotatably connected to one side of the telescopic sleeve (18), a second driving bevel gear (21) is fixedly sleeved on the outer wall of one end of the T-shaped rod (19), and a second driven bevel gear (23) is meshed with the second driving bevel gear (21), the fixed two-way lead screw (22) of pegging graft of inner circle of driven bevel gear of second (23), the both ends symmetrical sleeve of two-way lead screw (22) is equipped with two sets of flexible pipes (24), slot (33) have been seted up to the equal symmetry in inner wall both sides of lane top backplate (16), and are two sets of the one end of flexible pipe (24) is all slided and is pegged graft in two sets of the inside of slot (33), the fixed alarm (32) that are provided with in upper end of telescopic tube (18), cable retainer plate (28) down is passed through fixed block fixedly connected with in the upper end of telescopic tube (18), cable retainer plate (29) are gone up through bolt (30) fixedly connected with in cable retainer plate (28) down.
2. A coal mine roadway support apparatus as claimed in claim 1, wherein: a first rotating bearing (6) is embedded in one side of the supporting sleeve (4), and one end of the rocking handle (5) is fixedly inserted into an inner ring of the first rotating bearing (6).
3. A coal mine roadway support apparatus as claimed in claim 1, wherein: the inner ring of the lifting pipe (11) is provided with a first internal thread (12) corresponding to the one-way screw rod (9), one end of the one-way screw rod (9) is in threaded connection with the first internal thread (12), and the lifting pipe (11) is located above the driven bevel gear (10).
4. A coal mine roadway support apparatus as claimed in claim 1, wherein: two sets of first spout (13) have been seted up to the symmetry on the inner wall of support sleeve (4), and are two sets of all slide in first spout (13) and be provided with first slider (14), first spout (13) are corresponding the setting with first slider (14), and are two sets of the outer wall connection of the one end of first slider (14) is all fixed and fall way (11).
5. A coal mine roadway support apparatus as claimed in claim 1, wherein: a third rotating bearing (20) is embedded in one side of the telescopic sleeve (18), and one end of the T-shaped rod (19) is fixedly inserted into an inner ring of the third rotating bearing (20).
6. A coal mine roadway support apparatus as claimed in claim 1, wherein: second internal threads (25) corresponding to the two-way screw rods (22) are arranged in the two groups of extension tubes (24), and two ends of the two-way screw rods (22) are in threaded connection with the two groups of second internal threads (25).
7. A coal mine roadway support apparatus as claimed in claim 1, wherein: two groups of second sliding blocks (27) are symmetrically connected to the outer wall of the telescopic pipe (24), and second sliding grooves (26) for the two groups of second sliding blocks (27) to slide are formed in the inner wall of the telescopic pipe (18).
8. A coal mine roadway support apparatus as claimed in claim 1, wherein: one side of the first roadway supporting plate (2) is hinged with a box door (37) through a hinge, and a door lock (38) is arranged on the box door (37).
9. A coal mine roadway support apparatus as claimed in claim 1, wherein: the outer side of the bottom plate (1) is provided with a protective net (39), and the first roadway supporting plate (2), the second roadway supporting plate (3) and the roadway top supporting plate (16) are all located inside the protective net (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011441313.2A CN112576289A (en) | 2020-12-10 | 2020-12-10 | Coal mine tunnel supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011441313.2A CN112576289A (en) | 2020-12-10 | 2020-12-10 | Coal mine tunnel supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112576289A true CN112576289A (en) | 2021-03-30 |
Family
ID=75132088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011441313.2A Withdrawn CN112576289A (en) | 2020-12-10 | 2020-12-10 | Coal mine tunnel supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112576289A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228129A (en) * | 2020-11-09 | 2021-01-15 | 柳州铁道职业技术学院 | Assembled tunnel supporting device |
| CN113719320A (en) * | 2021-08-30 | 2021-11-30 | 兴义民族师范学院 | Coal mine tunnel country rock stability monitoring devices |
| CN114473929A (en) * | 2022-02-24 | 2022-05-13 | 江苏中为金属制造有限公司 | Rotating bracket for mounting vehicle tire |
| CN117661999A (en) * | 2024-01-31 | 2024-03-08 | 山西省煤炭地质水文勘查研究院有限公司 | Supporting device of underground roadway support drilling machine |
-
2020
- 2020-12-10 CN CN202011441313.2A patent/CN112576289A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228129A (en) * | 2020-11-09 | 2021-01-15 | 柳州铁道职业技术学院 | Assembled tunnel supporting device |
| CN113719320A (en) * | 2021-08-30 | 2021-11-30 | 兴义民族师范学院 | Coal mine tunnel country rock stability monitoring devices |
| CN113719320B (en) * | 2021-08-30 | 2023-10-24 | 兴义民族师范学院 | Coal mine roadway surrounding rock stability monitoring device |
| CN114473929A (en) * | 2022-02-24 | 2022-05-13 | 江苏中为金属制造有限公司 | Rotating bracket for mounting vehicle tire |
| CN117661999A (en) * | 2024-01-31 | 2024-03-08 | 山西省煤炭地质水文勘查研究院有限公司 | Supporting device of underground roadway support drilling machine |
| CN117661999B (en) * | 2024-01-31 | 2024-04-09 | 山西省煤炭地质水文勘查研究院有限公司 | Supporting device of underground roadway support drilling machine |
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Application publication date: 20210330 |