CN114673535A - Large-inclination-angle supporting device for preventing coal wall from caving - Google Patents
Large-inclination-angle supporting device for preventing coal wall from caving Download PDFInfo
- Publication number
- CN114673535A CN114673535A CN202210313764.0A CN202210313764A CN114673535A CN 114673535 A CN114673535 A CN 114673535A CN 202210313764 A CN202210313764 A CN 202210313764A CN 114673535 A CN114673535 A CN 114673535A
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- China
- Prior art keywords
- sleeve
- bevel gear
- supporting
- inner end
- screw rod
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- 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.)
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 71
- 239000003245 coal Substances 0.000 title claims abstract description 16
- 239000002689 soil Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
-
- 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
-
- 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
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/10—Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates
Landscapes
- 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 large-inclination-angle supporting device for preventing coal wall caving, which comprises a screw rod arranged at the inner end of a supporting shaft, wherein a bearing seat is fixedly arranged at the inner end of a sleeve, the inner end of the bearing seat is connected with the outer surface of the top end of the screw rod, the top end of the screw rod is fixedly connected with a first bevel gear, the inner end of the sleeve is provided with an inner cavity, a rotatable rocker is arranged at the inner end of the inner cavity, the outer surface of the output end of the rocker is fixedly connected with a second bevel gear, the outer side of the second bevel gear is connected with the first bevel gear, and a mounting block is fixedly arranged at the top end of the sleeve. This prevent big inclination strutting arrangement of coal wall caving is provided with back shaft and bracing piece, makes bevel gear group mesh transmission through the rotation of remote pole, drives the screw rod and rotates and make the sleeve move up, and two sets of bracing pieces rotate in step for roof and bracing piece form triangle-shaped supporting construction, and multiunit supporting construction increases the roof and struts the effect to the mine tunnel inner wall is strutted to the roof simultaneously.
Description
Technical Field
The invention relates to the technical field of mine tunnel supporting, in particular to a large-inclination-angle supporting device for preventing coal wall caving.
Background
The method is characterized in that the caving easily occurs during the transportation of the mine in mining industry, the mine working face and the roadway collapse under the action of mine pressure, so that serious safety accidents are caused, the common solution is to support the mine by a supporting device, so that the safety and stability are improved, but the existing supporting device has certain defects, such as the defects;
the existing supporting device adopts a beam column structure more, the supporting effect is poor, good supporting effect cannot be provided when the pressure of a mine tunnel is too large, roof caving rib caving is caused to occur, the installation stability of the existing supporting device is poor, and the longer roadway cannot be comprehensively supported.
In order to solve the problems, innovative design is urgently needed on the basis of the original supporting device.
Disclosure of Invention
The invention aims to provide a large-inclination-angle supporting device for preventing rib spalling of a coal wall, and aims to solve the problems that the conventional supporting device in the background art mostly adopts a beam-column structure, has poor supporting effect, cannot provide good supporting effect when the pressure of a mine tunnel is too high, causes roof collapse and rib spalling, has poor mounting stability and cannot comprehensively support a longer roadway.
In order to achieve the purpose, the invention provides the following technical scheme: a large-inclination-angle supporting device for preventing coal wall caving mainly comprises a base, a supporting shaft, a sleeve and a top plate, wherein the supporting shaft is fixedly installed at the upper end of the base, the sleeve is arranged at the outer end of the supporting shaft, and the top end of the sleeve is provided with the top plate which is in contact with the top of a mine tunnel;
the method comprises the following steps:
the screw rod is arranged at the inner end of the supporting shaft, a bearing seat is fixedly arranged at the inner end of the sleeve, the inner end of the bearing seat is connected with the outer surface of the top end of the screw rod, a first bevel gear is fixedly connected to the top end of the screw rod, an inner cavity is formed in the inner end of the sleeve, a rotatable rocker is arranged at the inner end of the inner cavity, a second bevel gear is fixedly connected to the outer surface of the output end of the rocker, the outer side of the second bevel gear is connected with the first bevel gear, an installation block is fixedly arranged at the top end of the sleeve, a supporting rod is connected to the outer side shaft of the installation block, a spring is fixedly connected to the side end of the supporting rod, a movable block is connected to the top shaft of the supporting rod, a sliding groove is formed in the bottom end of the top plate, and the inner end of the sliding groove is connected with the movable block;
the knob is rotatably arranged at the inner end of the base, a main gear is fixedly connected to the outer surface of the output end of the knob, a rack is connected to the outer end of the main gear, a pinion is connected to the tail end of the rack, and the inner end of the output end of the knob is provided with a ground socket.
Preferably, base and back shaft are welding integral structure, and back shaft and sleeve are for cup jointing the connection to the sleeve is threaded connection with the screw rod, and the rotation through the screw rod drives the sleeve and removes to the back shaft top.
Preferably, the screw rod forms a rotating structure with the sleeve through the bearing seat, the top end of the screw rod is fixedly connected with the first bevel gear, the first bevel gear is in meshed connection with the second bevel gear, and the screw rod is driven to rotate through meshed transmission of the bevel gear set.
Preferably, the bracing piece is provided with two sets of about the installation piece central line symmetry, and the bracing piece passes through the spring and constitutes elastic construction with the sleeve to bracing piece top movable block passes through the spout and constitutes sliding construction with the roof, increases support stability through the triangle-shaped supporting construction that bracing piece and roof constitute.
Preferably, the knob is rotatably connected with the base, the outer surface of the knob is fixedly connected with the main gear, the main gear is meshed with the rack, a plurality of sets of auxiliary gears are arranged at the inner end of the rack, and the output ends of the plurality of sets of knobs are driven to rotate simultaneously through meshing transmission of the gears and the rack.
Preferably, the output end of the knob is of a hollow structure, the output end of the knob is in threaded connection with the ground plug, the bottom end of the ground plug is connected with the mine road soil in an inserting mode, and the installation stability of the base is improved through downward movement of the ground plug.
Compared with the prior art, the invention has the beneficial effects that: the large-inclination-angle supporting device for preventing the coal wall from caving;
1. the supporting shafts and the supporting rods are arranged, the bevel gear set is meshed and driven through rotation of the remote rods, the screw rods are driven to rotate, so that the sleeve moves upwards, the two groups of supporting rods rotate synchronously, the top plate and the supporting rods form a triangular supporting structure, and meanwhile, the supporting effect of the top plate on the inner wall of the mine tunnel is improved through the multiple groups of supporting structures;
2. be provided with the base and insert with ground, make gear train and rack mesh the transmission through the rotation of knob, drive the inner ground of knob and insert and move down under the threaded connection effect, go deep into the ore deposit road soil for the difficult appearance of base rocks, increases the installation stability of base simultaneously, makes the steadiness of whole device improve.
Drawings
FIG. 1 is a schematic view of the overall front view structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a front view of the support rod of the present invention;
FIG. 4 is a side view of the top plate of the present invention;
FIG. 5 is a front cross-sectional structural view of the base of the present invention.
In the figure: 1. a base; 2. a support shaft; 3. a sleeve; 4. a screw; 5. a bearing seat; 6. a first bevel gear; 7. an inner cavity; 8. a rocker; 9. a second bevel gear; 10. mounting blocks; 11. a support bar; 12. a spring; 13. a movable block; 14. a top plate; 15. a chute; 16. a knob; 17. a main gear; 18. a rack; 19. a pinion gear; 20. and (4) inserting the ground.
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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a large-inclination-angle supporting device for preventing coal wall caving mainly comprises a base 1, a supporting shaft 2, a sleeve 3 and a top plate 14, wherein the supporting shaft 2 is fixedly installed at the upper end of the base 1, the sleeve 3 is arranged at the outer end of the supporting shaft 2, and the top end of the sleeve 3 is provided with the top plate 14 which is in contact with the top of a mine;
the method comprises the following steps:
the screw rod 4 is arranged at the inner end of the supporting shaft 2, the inner end of the sleeve 3 is fixedly provided with a bearing seat 5, the inner end of the bearing seat 5 is connected with the outer surface of the top end of the screw rod 4, the top end of the screw rod 4 is fixedly connected with a first bevel gear 6, the inner end of the sleeve 3 is provided with an inner cavity 7, the inner end of the inner cavity 7 is provided with a rotatable rocker 8, the outer surface of the output end of the rocker 8 is fixedly connected with a second bevel gear 9, the outer side of the second bevel gear 9 is connected with the first bevel gear 6, the top end of the sleeve 3 is fixedly provided with an installation block 10, the outer side shaft of the installation block 10 is connected with a supporting rod 11, the side end of the supporting rod 11 is fixedly connected with a spring 12, meanwhile, the top end shaft of the supporting rod 11 is connected with a movable block 13, the bottom end of the top plate 14 is provided with a sliding groove 15, and the inner end of the sliding groove 15 is connected with the movable block 13;
the knob 16 is rotatably arranged at the inner end of the base 1, the outer surface of the output end of the knob 16 is fixedly connected with a main gear 17, the outer end of the main gear 17 is connected with a rack 18, the tail end of the rack 18 is connected with a pinion 19, and the inner end of the output end of the knob 16 is provided with a ground plug 20.
The knob 16 is rotatably connected with the base 1, the outer surface of the knob 16 is fixedly connected with the main gear 17, the main gear 17 is meshed with the rack 18, meanwhile, a plurality of sets of pinions 19 are arranged at the inner end of the rack 18, the output end of the knob 16 is of a hollow structure, the output end of the knob 16 is in threaded connection with the ground socket 20, and the bottom end of the ground socket 20 is plugged with the mine soil.
The working principle is as follows: when the supporting device with a large inclination angle for preventing the coal wall from caving is used, according to the graph shown in fig. 1-5, firstly, the device is placed at a position to be operated, the base 1 is placed in a groove formed at the bottom end of a mine, the rocker 8 is rotated to enable the output end of the rocker to drive the second bevel gear 9 in the inner cavity 7 to rotate, because the second bevel gear 9 is in meshed connection with the first bevel gear 6, the first bevel gear 6 drives the bottom end screw rod 4 to rotate, meanwhile, the screw rod 4 forms a rotating structure with the sleeve 3 through the bearing seat 5, and the screw rod 4 is in threaded connection with the bottom end supporting shaft 2, the screw rod 4 drives the sleeve 3 to move upwards, so that the mounting blocks 10 at the top end of the sleeve 3 move synchronously, the mounting blocks 10 can drive the supporting rods 11 to rotate obliquely in the moving process, the top ends of the two groups of supporting rods 11 can drive the movable blocks 13 to move towards the direction far away from the central line of the top plate 14 along the sliding groove 15, the spring 12 with the reset function is extruded, the top plate 14 has a larger area and is in contact with the top side of the mine way in a fitting manner, so that the bottom end of the top plate is provided with a plurality of groups of supporting structures for stably supporting the top plate, and the supporting stability is higher through a supporting structure formed by two groups of supporting rods 11;
the knob 16 of base 1 outer end is rotated through the spanner, make its output drive the master gear 17 of surface and rotate, the master gear 17 will drive multiunit pinion 19 through rack 18 when rotating and rotate, make pinion 19 drive multiunit knob 16 output and rotate simultaneously, because knob 16 output is connected and knob 16 output inserts 20 for threaded connection with ground for rotating with base 1, will drive ground when its pivoted and insert 20 and move down, stretch into the soil of mine way bottom, increase base 1's installation stability, whole practicality has been increased.
Those not described in detail in this specification are well within the skill of the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A large-inclination-angle supporting device for preventing coal wall caving mainly comprises a base (1), a supporting shaft (2), a sleeve (3) and a top plate (14), wherein the supporting shaft (2) is fixedly installed at the upper end of the base (1), the sleeve (3) is arranged at the outer end of the supporting shaft (2), and the top end of the sleeve (3) is provided with the top plate (14) which is in contact with the top of a mine;
it is characterized by comprising: the screw rod (4) is arranged at the inner end of the supporting shaft (2), a bearing seat (5) is fixedly arranged at the inner end of the sleeve (3), the inner end of the bearing seat (5) is connected with the outer surface of the top end of the screw rod (4), a first bevel gear (6) is fixedly connected to the top end of the screw rod (4), an inner cavity (7) is formed in the inner end of the sleeve (3), a rotatable rocker (8) is arranged at the inner end of the inner cavity (7), a second bevel gear (9) is fixedly connected to the outer surface of the output end of the rocker (8), the outer side of the second bevel gear (9) is connected with the first bevel gear (6), a mounting block (10) is fixedly arranged at the top end of the sleeve (3), a supporting rod (11) is connected with an outer side shaft of the mounting block (10), a spring (12) is fixedly connected to the side end of the supporting rod (11), and a movable block (13) is connected to the top shaft of the supporting rod (11), the bottom end of the top plate (14) is provided with a sliding groove (15), and the inner end of the sliding groove (15) is connected with the movable block (13); the rotary knob (16) is rotatably arranged at the inner end of the base (1), a main gear (17) is fixedly connected to the outer surface of the output end of the rotary knob (16), the outer end of the main gear (17) is connected with a rack (18), the tail end of the rack (18) is connected with a pinion (19), and a ground plug (20) is arranged at the inner end of the output end of the rotary knob (16).
2. The supporting device with the large inclination angle for preventing the coal wall caving from being broken is characterized in that the base (1) and the supporting shaft (2) are of a welding integrated structure, the supporting shaft (2) and the sleeve (3) are in sleeved connection, and the sleeve (3) and the screw (4) are in threaded connection.
3. The large-inclination supporting device for preventing the coal wall caving according to claim 1, wherein the screw (4) and the sleeve (3) form a rotating structure through a bearing seat (5), the top end of the screw (4) is fixedly connected with the first bevel gear (6), and the first bevel gear (6) is in meshed connection with the second bevel gear (9).
4. The large-inclination supporting device for preventing the coal wall caving from being broken is characterized in that the supporting rods (11) are symmetrically arranged in two groups about the central line of the mounting block (10), the supporting rods (11) and the sleeve (3) form an elastic structure through the springs (12), and the movable block (13) at the top end of the supporting rods (11) and the top plate (14) form a sliding structure through the sliding groove (15).
5. The steep supporting device for preventing the coal wall from caving in according to claim 1, wherein the knob (16) is rotatably connected with the base (1), the outer surface of the knob (16) is fixedly connected with the main gear (17), the main gear (17) is in meshed connection with the rack (18), and the inner end of the rack (18) is provided with a plurality of sets of pinions (19).
6. The large-inclination supporting device for preventing the coal wall caving from occurring according to claim 5, wherein the output end of the knob (16) is hollow, the output end of the knob (16) is in threaded connection with the ground plug (20), and the bottom end of the ground plug (20) is inserted into the soil of the mine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210313764.0A CN114673535A (en) | 2022-03-28 | 2022-03-28 | Large-inclination-angle supporting device for preventing coal wall from caving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210313764.0A CN114673535A (en) | 2022-03-28 | 2022-03-28 | Large-inclination-angle supporting device for preventing coal wall from caving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114673535A true CN114673535A (en) | 2022-06-28 |
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ID=82076467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210313764.0A Pending CN114673535A (en) | 2022-03-28 | 2022-03-28 | Large-inclination-angle supporting device for preventing coal wall from caving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114673535A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3832856A (en) * | 1971-12-14 | 1974-09-03 | Oesterr Alpine Montan | Device for vertically positioning the props of a mine roof supporting frame |
| CN209163839U (en) * | 2018-11-27 | 2019-07-26 | 张家界恒亮新材料科技有限公司 | A kind of mining industry mine safety protection supporting frame |
| CN210919107U (en) * | 2019-08-23 | 2020-07-03 | 孔令伟 | Coal mine tunneling and supporting device |
| CN211202018U (en) * | 2019-09-24 | 2020-08-07 | 山东尔多新材料有限公司 | Roadway supporting structure for coal mining safety protection |
| CN212614787U (en) * | 2020-07-09 | 2021-02-26 | 山西中科赛德能源科技有限公司 | Temporary support device for working face coal seam roadway excavation |
-
2022
- 2022-03-28 CN CN202210313764.0A patent/CN114673535A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3832856A (en) * | 1971-12-14 | 1974-09-03 | Oesterr Alpine Montan | Device for vertically positioning the props of a mine roof supporting frame |
| CN209163839U (en) * | 2018-11-27 | 2019-07-26 | 张家界恒亮新材料科技有限公司 | A kind of mining industry mine safety protection supporting frame |
| CN210919107U (en) * | 2019-08-23 | 2020-07-03 | 孔令伟 | Coal mine tunneling and supporting device |
| CN211202018U (en) * | 2019-09-24 | 2020-08-07 | 山东尔多新材料有限公司 | Roadway supporting structure for coal mining safety protection |
| CN212614787U (en) * | 2020-07-09 | 2021-02-26 | 山西中科赛德能源科技有限公司 | Temporary support device for working face coal seam roadway excavation |
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Application publication date: 20220628 |