CN220791287U - Working face coal-proof wall caving support device - Google Patents
Working face coal-proof wall caving support device Download PDFInfo
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- CN220791287U CN220791287U CN202321857756.9U CN202321857756U CN220791287U CN 220791287 U CN220791287 U CN 220791287U CN 202321857756 U CN202321857756 U CN 202321857756U CN 220791287 U CN220791287 U CN 220791287U
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- fixed block
- fixedly connected
- screw rod
- base
- bidirectional screw
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 34
- 239000003245 coal Substances 0.000 claims abstract description 19
- 238000005065 mining Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a working face coal-preventing wall caving support device, and relates to the technical field of coal mining; the device comprises a base, wherein a first fixed block is connected above the base through a lifting mechanism; the top of the first fixed block is fixedly connected with a first supporting plate for supporting a working surface top plate; the inside of the first fixed block is rotationally connected with a second bidirectional screw rod, the second bidirectional screw rod is connected with a first driving device, two ends of the second bidirectional screw rod penetrate through two sides of the first fixed block and are respectively connected with a second fixed block in a threaded manner, and one side, far away from the first fixed block, of the second fixed block is fixedly connected with a second supporting plate for supporting the working face ledge; the outer side of the bottom of the base is connected with a third supporting plate which can move up and down through a second driving device and is used for supporting the ground; the device improves the support stability of the base, simultaneously realizes the support function of the two side support ledge, and reduces the production potential safety hazard.
Description
Technical Field
The utility model relates to the technical field of coal mining, in particular to a coal wall caving supporting device for a working face.
Background
Along with the development of mechanized coal mining of the coal mine, especially in the development of comprehensive coal mining, the hydraulic support is necessary equipment for supporting a top plate and maintaining a coal wall in the coal mining of three soft coal seams, large upward coal mining and the like, and the purpose is to maintain the life safety of workers, so that the requirements on the coal wall caving support device for the large upward coal mining working face are more strict, but the existing support device is inconvenient to support the two sides of the working face at the same time, further the support effect is reduced, and is inconvenient to adapt to coal mines with different specifications, so that the use limitation of the support device is improved, and the support device is inconvenient to carry out rapid limiting fixation after moving, so that the subsequent support stability is influenced.
Disclosure of Invention
The utility model overcomes the defects of the prior art and provides a coal-preventing wall caving supporting device for a working face.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme.
A coal-proof wall caving support device for a working face comprises a base, wherein a first fixed block is connected above the base through a lifting mechanism; the top of the first fixed block is fixedly connected with a first supporting plate for supporting a working surface top plate; the inside of the first fixed block is rotationally connected with a second bidirectional screw rod, the second bidirectional screw rod is connected with a first driving device, two ends of the second bidirectional screw rod penetrate through two sides of the first fixed block and are respectively connected with a second fixed block in a threaded manner, and one side, far away from the first fixed block, of the second fixed block is fixedly connected with a second supporting plate for supporting a working face ledge; the outer side of the bottom of the base is connected with a third supporting plate which can move up and down through a second driving device and is used for supporting the ground.
Further, the lifting device comprises a first bidirectional screw rod and an adjusting rod; the first bidirectional screw rod is rotationally connected in the base and fixedly connected with the output end of the first motor; the two ends of the outer side of the first bidirectional screw rod are connected with moving plates in a threaded mode, the tops of the moving plates are rotatably connected with one end of an adjusting rod, and the other end of the adjusting rod is rotatably connected with the bottom of the first fixed block.
Still further, first motor fixed connection is in one side of base, one end of first two-way lead screw passes one side of base and output fixed connection of first motor.
Further, the first driving device comprises a second motor, and the output end of the second motor is fixedly connected with a first bevel gear; the outer side of the second bidirectional screw rod is provided with a second bevel gear, and the first bevel gear is connected with the second bevel gear in a meshed mode.
Further, the two sides of the first fixed block are fixedly connected with second sliding rods, and the second sliding rods are in sliding connection with the second fixed block.
Further, two ends of the bottom of the first supporting plate are respectively and fixedly connected with a first sliding rod, and the outer side of the first sliding rod is connected with a connecting plate in a sliding manner; one end of the connecting plate is fixedly connected with one side of the second fixing block.
Further, the second driving device is a hydraulic cylinder, the hydraulic cylinder is arranged in the base, the output end of the hydraulic cylinder is fixedly connected with the connecting frame, and the bottom of the connecting frame penetrates through the base to be fixedly connected with the third supporting plate.
Furthermore, universal wheels are fixedly connected to four corners of the bottom of the base.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the limiting and fixing functions are realized by arranging the hydraulic cylinder, the connecting frame and the supporting plate, after the base is moved to the target position, the hydraulic cylinder is started to extend, and the supporting plate is driven to abut against the ground through the connecting frame, so that the base can be effectively limited and fixed, and the subsequent supporting stability of the base is improved.
2. According to the utility model, the lifting function is realized by arranging the first bidirectional screw rod, the moving plate, the first motor and the adjusting rod, and the height of the device can be adjusted according to the supporting requirement.
3. According to the utility model, the second motor, the first bevel gear, the second bevel gear and the second bidirectional screw rod are arranged, so that the function of supporting two sides is realized, two sides of the main supporting surface can be extended and supported, the situation that two sides of the main supporting surface fall off and loose is avoided, and then the potential safety hazard is greatly reduced.
Drawings
FIG. 1 is a schematic perspective view of a wall caving support device for coal protection on a working surface;
FIG. 2 is a front view of the face coal-protection wall caving support device of the present utility model;
FIG. 3 is a cross-sectional view of FIG. 2;
fig. 4 is an enlarged schematic view of the structure at a in fig. 3.
In the figure: 1. a base; 2. a first bidirectional screw rod; 3. a moving plate; 4. an adjusting rod; 5. a first fixed block; 6. a first support plate; 7. a second fixed block; 8. a second support plate; 9. a first slide bar; 10. a connecting plate; 11. a second bidirectional screw rod; 12. a second slide bar; 13. a first motor; 14. a second motor; 15. a first bevel gear; 16. a second bevel gear; 17. a hydraulic cylinder; 18. a connecting frame; 19. a third support plate; 20. and a universal wheel.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail by combining the embodiments and the drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. The following describes the technical scheme of the present utility model in detail with reference to examples and drawings, but the scope of protection is not limited thereto.
Referring to fig. 1 to 4, the present embodiment provides a supporting device for a coal-proof wall panel of a working surface, which comprises a base 1, wherein an installation groove is formed in the base 1, two parallel first bidirectional screw rods 2 are symmetrically installed in the installation groove, one end of each first bidirectional screw rod 2 penetrates through one side of the base 1 and is fixedly connected with an output end of a first motor 13, the first motor 13 is fixedly connected to one side of the base 1, the first motor 13 is started, and the first motor 13 drives the first bidirectional screw rods 2 to rotate. The outside both ends threaded connection of first two-way lead screw 2 has movable plate 3, and first two-way lead screw 2 rotates and moves with movable plate 3, and movable plate 3's top rotates and is connected with regulation pole 4, and movable plate 3 moves and moves with regulation pole 4, and one end rotation that movable plate 3 was kept away from to regulation pole 4 is connected with first fixed block 5, and movable plate 3 moves the height of adjusting first fixed block 5 with first fixed block 5 through adjusting pole 4, and the top fixedly connected with first backup pad 6 of first fixed block 5, and first fixed block 5 moves and supports the top with first backup pad 6.
The inside of the first fixed block 5 is rotatably connected with a second bidirectional screw rod 11, and two ends of the second bidirectional screw rod 11 penetrate through two sides of the first fixed block 5 and are respectively connected with a second fixed block 7 in a threaded mode. The second motor 14 is installed in the first fixed block 5, the output end of the second motor 14 is fixedly connected with the first bevel gear 15, the second motor 14 is started, and the second motor 14 rotates with the first bevel gear 15. The outer side of the second bidirectional screw rod 11 is provided with a second bevel gear 16, the first bevel gear 15 is in meshed connection with the second bevel gear 16, and the first bevel gear 15 drives the second bevel gear 16 to rotate; the second bevel gear 16 rotates to drive the second bidirectional screw rod 11 to rotate. The second fixing blocks 7 on two sides are driven to move through rotation of the second bidirectional screw rods 11, one side of each second fixing block 7 is fixedly connected with a second supporting plate 8, and the second fixing blocks 7 move to drive the second supporting plates 8 to move so as to support two sides.
In order to keep the second fixing block 7 stable during movement, a further improved structure of the present embodiment is that the second slide bars 12 are fixedly connected to the upper and lower sides of the first fixing block 5, and the second slide bars 12 are disposed inside the second fixing block 7 and are slidably connected to the second fixing block 7. Furthermore, the two ends of the bottom of the first supporting plate 6 are fixedly connected with a first sliding rod 9, the outer side of the first sliding rod 9 is slidably connected with a connecting plate 10, and the connecting plate 10 can move along the first sliding rod 9. One end of the connecting plate 10 is fixedly connected with one side of the top of the second fixed block 7, and the second fixed block 7 moves along the first sliding rod 9 with the connecting plate 10.
The hydraulic cylinder 17 is arranged in the base 1, the output end of the hydraulic cylinder 17 is fixedly connected with the connecting frame 18, the hydraulic cylinder 17 is started, and the hydraulic cylinder 17 drives the connecting frame 18 to move up and down. The bottom of the connecting frame 18 penetrates through the bottom of the base 1 and is fixedly connected with a third supporting plate 19, and the connecting frame 18 moves to move up and down with the third supporting plate 19. Until the third support plate 19 is in contact with the ground, preventing movement of the device during use. The four corners of the bottom of the base 1 are fixedly connected with universal wheels 20, and when the third supporting plate 19 is folded, the device is integrally moved.
The working principle of the device is as follows:
when the device is used, the universal wheel 20 is utilized to move the device to a proper position, the first motor 13 is started, the first motor 13 rotates with the first bidirectional screw rod 2, the first bidirectional screw rod 2 rotates with the moving plates 3 at two ends to move, the moving plates 3 move with the first fixing blocks 5 through the adjusting rods 4, the height of the first fixing blocks 5 is adjusted, and the first fixing blocks 5 move with the first supporting plates 6 to support the top.
The second motor 14 is started, the second motor 14 rotates through the first bevel gear 15 and the second bevel gear 16, the second bevel gear 16 rotates through the second bidirectional screw rod 11, the second bidirectional screw rod 11 rotates and moves through the second fixed block 7, the second fixed block 7 moves through the connecting plate 10 along the first sliding rod 9, stability in the moving process of the second fixed block 7 is kept, the second fixed block 7 moves through the second supporting plate 8 and moves along the second sliding rod 12, stability in the moving process of the second fixed block 7 is further guaranteed, and the second fixed block 7 supports two sides through the second supporting plate 8.
The hydraulic cylinder 17 is started, the hydraulic cylinder 17 moves with the connecting frame 18, and the connecting frame 18 moves with the third supporting plate 19 until the third supporting plate 19 is attached to the ground, so that the device is prevented from moving in the using process.
While the utility model has been described in detail in connection with specific preferred embodiments thereof, it is not to be construed as limited thereto, but rather as a result of a simple deduction or substitution by a person having ordinary skill in the art to which the utility model pertains without departing from the scope of the utility model defined by the appended claims.
Claims (8)
1. The coal wall caving supporting device for the working face is characterized by comprising a base (1), wherein a first fixed block (5) is connected above the base (1) through a lifting mechanism; the top of the first fixed block (5) is fixedly connected with a first supporting plate (6) for supporting a working surface top plate; the inside of the first fixed block (5) is rotationally connected with a second bidirectional screw rod (11), the second bidirectional screw rod (11) is connected with a first driving device, two ends of the second bidirectional screw rod (11) penetrate through two sides of the first fixed block (5) and are respectively connected with a second fixed block (7) in a threaded manner, and one side, far away from the first fixed block (5), of the second fixed block (7) is fixedly connected with a second supporting plate (8) for supporting a working surface ledge; the outer side of the bottom of the base (1) is connected with a third supporting plate (19) which can move up and down through a second driving device and is used for supporting the ground.
2. The coal wall caving support device for the working face according to claim 1, wherein the lifting mechanism comprises a first bidirectional screw rod (2) and an adjusting rod (4); the first bidirectional screw rod (2) is rotationally connected in the base (1), and the first bidirectional screw rod (2) is fixedly connected with the output end of the first motor (13); the two-way screw rod is characterized in that two ends of the outer side of the first two-way screw rod (2) are connected with a movable plate (3) in a threaded mode, the top of the movable plate (3) is rotationally connected with one end of an adjusting rod (4), and the other end of the adjusting rod (4) is rotationally connected with the bottom of the first fixed block (5).
3. The coal wall caving support device for the working face according to claim 2, wherein the first motor (13) is fixedly connected to one side of the base (1), and one end of the first bidirectional screw rod (2) penetrates through one side of the base (1) and is fixedly connected with the output end of the first motor (13).
4. The coal-proof wall caving support device for the working face according to claim 1, wherein the first driving device comprises a second motor (14), and the output end of the second motor (14) is fixedly connected with a first bevel gear (15); the outer side of the second bidirectional screw rod (11) is provided with a second bevel gear (16), and the first bevel gear (15) is connected with the second bevel gear (16) in a meshed mode.
5. The coal wall caving support device for the working face according to claim 1, wherein the two sides of the first fixed block (5) are fixedly connected with second sliding rods (12), and the second sliding rods (12) are in sliding connection with the second fixed block (7).
6. The coal-preventing wall caving support device for the working face according to claim 1 or 5, wherein the two ends of the bottom of the first support plate (6) are fixedly connected with first slide bars (9) respectively, and the outer sides of the first slide bars (9) are connected with connecting plates (10) in a sliding manner; one end of the connecting plate (10) is fixedly connected with one side of the second fixed block (7).
7. The coal wall caving support device for the working face according to claim 1, wherein the second driving device is a hydraulic cylinder (17), the hydraulic cylinder (17) is arranged in the base (1), the output end of the hydraulic cylinder (17) is fixedly connected with a connecting frame (18), and the bottom of the connecting frame (18) penetrates through the base (1) to be fixedly connected with a third supporting plate (19).
8. The coal-proof wall caving support device for the working face according to claim 1, wherein universal wheels (20) are fixedly connected to four corners of the bottom of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321857756.9U CN220791287U (en) | 2023-07-14 | 2023-07-14 | Working face coal-proof wall caving support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321857756.9U CN220791287U (en) | 2023-07-14 | 2023-07-14 | Working face coal-proof wall caving support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791287U true CN220791287U (en) | 2024-04-16 |
Family
ID=90654018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321857756.9U Active CN220791287U (en) | 2023-07-14 | 2023-07-14 | Working face coal-proof wall caving support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791287U (en) |
-
2023
- 2023-07-14 CN CN202321857756.9U patent/CN220791287U/en active Active
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