Shallow buried short-distance coal seam safe mining supporting device

Abstract

The utility model discloses a shallowly buried close-distance coal seam safe mining support device, which relates to the technical field of coal mining equipment, and comprises a support bottom plate, the upper surface of the support bottom plate is fixedly connected with four square blocks, the middle positions of the upper surfaces of the four square blocks are fixedly connected with telescopic columns, and the telescopic columns are fixedly connected with the support bottom plate. A heightening table is fixedly connected to the middle position of the upper surface of the supporting bottom plate, a jack is fixedly connected to the middle position of the upper surface of the heightening table, and through cooperative work of the jack, a supporting plate and a bearing plate, a first arc-shaped sleeve, a second arc-shaped sleeve and a third arc-shaped sleeve can move towards the surface of a coal seam; according to the safety mining supporting device, the situation that operators consume manpower to adjust the height of the safety mining supporting device is avoided, the workload of the operators is relieved, the protective net and the arc-shaped baffle work in cooperation, stones can be prevented from falling off from the upper portion, the situation that the workers are injured by the falling stones can be avoided, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment technology, and in particular to a support device for safe mining of shallow buried coal seams at close range. Background Technology

[0002] Coal seams are layered solid combustible minerals formed from plant remains through complex biochemical and geological processes. They are found within coal-bearing rock formations, located between the roof and floor rocks. The number, thickness, occurrence, and burial depth of coal seams are constrained by paleotectonic, paleogeographic, and paleoclimatic conditions. The occurrence of coal seams is an important basis for determining the economic value of coalfields and for development planning. Closely spaced coal seams are generally considered to be those with very close interlayer spacing, resulting in significant mutual influence during mining.

[0003] The existing safety mining support system is quite cumbersome to adjust in terms of height. It requires operators to spend manpower to adjust the height of the support system, which increases the workload of the operators. In addition, small stones may fall from above, and if they are not stopped, they may cause injury to workers passing below, thus reducing its practicality. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings mentioned in the background art by proposing a safe mining support device for shallowly buried, close-range coal seams.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A support device for safe mining of shallow buried coal seams at close range includes a support base plate, four square blocks are fixedly connected to the upper surface of the support base plate, a telescopic column is fixedly connected to the middle position of the upper surface of the four square blocks, and a raising platform is fixedly connected to the middle position of the upper surface of the support base plate.

[0007] A jack is fixedly connected to the middle position of the upper surface of the lifting platform. A drive rod is provided at the power output end of the jack. A support plate is provided on the upper surface of the drive rod. Two receiving plates are fixedly connected to both the front and rear ends of the support plate.

[0008] Preferably, two arc-shaped sleeves are fixedly connected to the left and right sides of the two receiving plates, two load-bearing plates are fixedly connected to the lower surface of the two arc-shaped sleeves, and the upper surface of the two load-bearing plates is provided with a sliding groove.

[0009] Preferably, a slider is movably connected to the inner wall of the groove, and an arc-shaped sleeve is fixedly connected to the upper surface of the slider.

[0010] Preferably, an arc-shaped baffle is inserted inside the arc-shaped sleeve, and a connecting block is fixedly connected to the upper surface of the arc-shaped sleeve, and the number of connecting blocks is three.

[0011] Preferably, an arc-shaped sleeve three is fixedly connected to the upper surface of the three connecting blocks, and a protective net is inserted into the inside of the arc-shaped sleeve three.

[0012] Preferably, the lower surface of the support base plate is fixedly connected to a support column, and the number of support columns is four, with a tripod fixedly connected to one side of the four support columns near the middle position.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Through the coordinated operation of the jacks, support plates, and receiving plates, the three arc-shaped sleeves (one, two, and three) can be moved towards the surface of the coal seam. When these sleeves are in close contact with the coal seam surface, the operator can stop the jacks, avoiding the need for manual adjustment of the height of the safety mining support device and reducing the operator's workload. The combined operation of the protective net and the arc-shaped baffles prevents large or small stones from falling from above. Falling stones will slide along the arc-shaped baffles to the left and right sides of the device, preventing them from accumulating above the device and thus avoiding injury to workers. This increases the practicality of the device. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a structural schematic diagram of a support device for safe mining of shallow-buried, close-range coal seams proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the supporting base plate structure proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the arc-shaped sleeve structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the three-structure arc-shaped sleeve proposed in this utility model.

[0020] In the diagram: 1. Support base plate; 2. Square block; 3. Telescopic column; 4. Raising platform; 5. Jack; 6. Drive rod; 7. Support plate; 8. Support plate; 9. Arc sleeve one; 10. Load-bearing plate; 11. Slide groove; 12. Sliding block; 13. Arc sleeve two; 14. Arc baffle; 15. Connecting block; 16. Arc sleeve three; 17. Protective net; 18. Support column; 19. Tripod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1

[0023] Reference Figure 1-4 A support device for safe mining of shallow buried coal seams at close range includes a support base plate 1, four square blocks 2 are fixedly connected to the upper surface of the support base plate 1, a telescopic column 3 is fixedly connected to the middle position of the upper surface of the four square blocks 2, and a raising platform 4 is fixedly connected to the middle position of the upper surface of the support base plate 1.

[0024] A jack 5 is fixedly connected to the middle of the upper surface of the riser platform 4. A drive rod 6 is installed at the power output end of the jack 5. A support plate 7 is installed on the upper surface of the drive rod 6. Two bearing plates 8 are fixedly connected to both the front and rear ends of the support plate 7. Two arc-shaped sleeves 9 are fixedly connected to the left and right sides of the two bearing plates 8. Two load-bearing plates 10 are fixedly connected to the lower surface of the two arc-shaped sleeves 9. A sliding groove 11 is formed on the upper surface of the two load-bearing plates 10. A slider 12 is movably connected to the inner wall of the sliding groove 11. An arc-shaped sleeve 13 is fixedly connected to the upper surface. An arc-shaped baffle 14 is inserted inside the arc-shaped sleeve 9. A connecting block 15 is fixedly connected to the upper surface of the arc-shaped sleeve 9, and there are three connecting blocks 15. An arc-shaped sleeve 16 is fixedly connected to the upper surface of the three connecting blocks 15. A protective net 17 is inserted inside the arc-shaped sleeve 16. A support column 18 is fixedly connected to the lower surface of the support base plate 1, and there are four support columns 18. A tripod 19 is fixedly connected to one side of the four support columns 18 near the middle position.

[0025] The existing safety mining support system is quite cumbersome to adjust in terms of height. It requires operators to spend manpower to adjust the height of the support system, which increases the workload of the operators. In addition, small stones may fall from above, and if they are not stopped, they may cause injury to workers passing below, thus reducing its practicality.

[0026] When using this device, the operator first places the entire unit below the nearest coal seam. Then, the operator activates jack 5. The power output of jack 5 causes drive rod 6 to move upward. This upward movement of drive rod 6 moves support plate 7 and receiving plate 8 upward, which in turn moves arc-shaped sleeves 1-9, 2-13, and 3-16 towards the surface of the coal seam. When these three sleeves are in close contact with the coal seam surface, the operator can stop jack 5 to avoid injury. The height of the safety mining support device is adjusted by the operator, which reduces the workload of the operator. Then the operator inserts the protective net 17 into the inside of the arc sleeve 16 to prevent some large stones from falling from above. If small stones fall from above, the operator can insert the arc baffle 14 into the inside of the arc sleeve 13. The falling stones will slide along the arc baffle 14 to the left and right sides of the device and will not accumulate on top of the device, thus preventing falling stones from causing injury to the workers and increasing the practicality of the device.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A support device for safe mining of shallow, closely spaced coal seams, comprising a supporting base plate (1), characterized in that: The upper surface of the supporting base plate (1) is fixedly connected with square blocks (2), and there are four square blocks (2). A telescopic column (3) is fixedly connected to the middle position of the upper surface of the four square blocks (2), and a raising platform (4) is fixedly connected to the middle position of the upper surface of the supporting base plate (1). A jack (5) is fixedly connected to the middle position of the upper surface of the riser (4). A drive rod (6) is provided at the power output end of the jack (5). A support plate (7) is provided on the upper surface of the drive rod (6). Two receiving plates (8) are fixedly connected to both the front and rear ends of the support plate (7).

2. The support device for safe mining of shallow, closely spaced coal seams according to claim 1, characterized in that, Two arc-shaped sleeves (9) are fixedly connected to the left and right sides of the two receiving plates (8), and two load-bearing plates (10) are fixedly connected to the lower surfaces of the two arc-shaped sleeves (9). The upper surfaces of the two load-bearing plates (10) are provided with grooves (11).

3. The support device for safe mining of shallow, closely spaced coal seams according to claim 2, characterized in that, The inner wall of the slide groove (11) is movably connected to a slider (12), and the upper surface of the slider (12) is fixedly connected to an arc-shaped sleeve (13).

4. The support device for safe mining of shallow, closely spaced coal seams according to claim 3, characterized in that, An arc-shaped baffle (14) is inserted inside the arc-shaped sleeve (9), and a connecting block (15) is fixedly connected to the upper surface of the arc-shaped sleeve (9), and the number of connecting blocks (15) is three.

5. A support device for safe mining of shallow, closely spaced coal seams according to claim 4, characterized in that, The upper surfaces of the three connecting blocks (15) are fixedly connected to an arc-shaped sleeve three (16), and a protective net (17) is inserted into the inside of the arc-shaped sleeve three (16).

6. The support device for safe mining of shallow, closely spaced coal seams according to claim 1, characterized in that, The lower surface of the support base plate (1) is fixedly connected to a support column (18), and there are four support columns (18). A tripod (19) is fixedly connected to one side of the four support columns (18) near the middle position.

Images