Supporting device for coal mining

Abstract

The utility model provides a supporting device for coal mining, and belongs to the technical field of coal mining. The supporting device for coal mining comprises two supporting cylinders, two supporting rods and an adjusting mechanism, the supporting rods are in sliding connection with the supporting cylinders, and the number of the supporting rods and the number of the supporting cylinders are both two; the adjusting mechanism comprises a connecting cylinder and a connecting rod, the connecting cylinder and the connecting rod are welded to the two supporting rods correspondingly, the connecting rod is slidably connected with the inner wall of the connecting cylinder, the connecting rod and the connecting cylinder can slide relatively to adjust the width, the connecting rod and the connecting cylinder can be limited to adjust the specific width, and the handle is pulled outwards to adjust the specific width. The handle drives the inserting rod to slide and move the inserting rod out of the current inserting groove, meanwhile, the inserting rod compresses the first spring through the limiting ring, then the connecting rod and the connecting cylinder slide relatively, the handle is loosened after the supporting width is adjusted, the first spring is reset, the inserting rod is inserted into a new inserting groove, the width of the supporting piece can be adjusted, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine mining, and particularly relates to a supporting device for coal mine mining. Background Technique

[0002] A coal mine is an area where humans mine coal resources in coal-rich mining areas. Generally, it is divided into underground coal mines and surface coal mines. When the coal seam is far from the surface, generally, underground roadways are dug to mine coal, which is an underground coal mine. When the distance between the coal seam and the surface is very close, generally, the surface soil layer is directly stripped to mine coal, which is a surface coal mine. Most coal mines in China belong to underground coal mines. Underground mining is very dangerous and is likely to collapse. For underground mining workers, the danger is much higher than that of surface mining. Underground mining requires support members to support the mine tunnel and reduce the occurrence of collapse.

[0003] After retrieval, in the Chinese published utility model patent application number: CN202121716876.8, a supporting device for coal mine mining is disclosed. By pulling the adjusting mechanism by the user, the positioning mechanism is driven into the inside of the positioning groove. At this time, the user can adjust the height of the support plate. After completion, the adjusting mechanism is pulled in the reverse direction, and the telescopic column is fixed through the cooperation with the positioning mechanism, thereby stabilizing the support plate, and solving the problem that the existing support for the mine tunnel is inconvenient due to the inconsistent height of the mine tunnel. However, it cannot adjust the width of the support member. There may be situations where the roadway becomes wider or narrower in the mine tunnel. In these situations, the support member cannot adapt to the changes in the roadway, and the scope of application is small. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a supporting device for coal mine mining that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model provides a supporting device for coal mine mining, including

[0006] A support cylinder, which is used to support the bottom and side walls of the roadway;

[0007] A support rod, which is used to support the top and side walls of the roadway. The support rod is slidably connected to the support cylinder, and both the support rod and the support cylinder are provided with two;

[0008] An adjusting mechanism, which is located between the two support rods, and includes a connecting cylinder and a connecting rod. The connecting cylinder and the connecting rod are respectively welded to the two support rods. The connecting rod is slidably connected to the inner wall of the connecting cylinder. The connecting rod and the connecting cylinder can produce relative sliding to adjust the width, and the connecting rod and the connecting cylinder can be limited to adjust the specific width.

[0009] In a preferred embodiment, slots are provided on the outer side of the connecting rod, and a plurality of the slots are provided, and the plurality of slots are equidistantly arranged.

[0010] In a preferred embodiment, a fixed block is fixedly connected to the outer side of the connecting cylinder, a plug rod is slidably mounted on the fixed block, the plug rod is slidably connected to the connecting cylinder, the plug rod is inserted into the inner wall of the slot, and a handle is fixedly connected to one end of the plug rod.

[0011] In a preferred embodiment, a chute is provided inside the fixed block, a limiting ring is fixedly connected to the outer wall of the plug rod, the limiting ring is slidably connected to the inner wall of the chute, and a first spring is fixedly connected between the limiting ring and the inner wall of the chute.

[0012] In a preferred embodiment, a fixing mechanism is provided on the connecting cylinder, and the fixing mechanism includes a box body, a pedal, a fixing cone, a second spring and a through hole, and the box body is fixedly connected to the outer side of the connecting cylinder.

[0013] In a preferred embodiment, the pedal is slidably connected to the inner wall of the box body, the fixing cone is fixedly connected to the bottom of the pedal, the second spring is fixedly connected between the pedal and the inner wall of the box body, and the through hole is provided at the bottom of the box body.

[0014] In a preferred embodiment, a lead screw is rotatably installed on the support cylinder through a bearing, a limiting rod is fixedly connected between the inner walls of the support cylinder, the lead screw is threadedly connected to a slider, the slider is slidably connected to the limiting rod, and the top of the slider is fixedly connected to the bottom of the support rod.

[0015] In a preferred embodiment, a housing is fixedly connected to the outer side of the support cylinder, a rotating shaft is rotatably installed on the housing, gears are fixedly connected to the outer walls of the rotating shaft and the lead screw, the two gears are meshed and connected, a turntable is fixedly connected to the end of the rotating shaft extending out of the housing, a turning handle is fixedly connected to the top of the turntable, a positioning screw is provided on the support cylinder, and the lead screw is arranged on the rotation path of the positioning screw.

[0016] By pulling the handle outwards, the handle drives the plug rod to slide and removes the plug rod from the current slot. At the same time, the plug rod compresses the first spring through the limiting ring. Then, the connecting rod and the connecting cylinder slide relative to each other. After adjusting the support width, release the handle, and the first spring resets to make the plug rod insert into a new slot, so that the width of the support member can be adjusted, and the applicable range is wide. When disassembling, the connecting rod can be slid out of the connecting cylinder, so that the two support rods and the connecting rod support cylinder can be disassembled, which is convenient for transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the overall structure provided by the embodiment of the present invention;

[0018] Figure 2 Schematic cross-sectional structure diagram of the fixing block provided by the embodiment of the present utility model;

[0019] Figure 3 Schematic structure diagram of the connecting rod provided by the embodiment of the present utility model;

[0020] Figure 4 Schematic structure diagram of the fixing mechanism provided by the embodiment of the present utility model;

[0021] Figure 5 Schematic cross-sectional structure diagram of the support cylinder and the housing provided by the embodiment of the present utility model;

[0022] In the figure: 1, support cylinder; 2, adjustment mechanism; 201, connecting cylinder; 202, connecting rod; 203, slot; 204, fixing block; 205, insertion rod; 206, handle; 207, sliding groove; 208, limiting ring; 209, first spring; 3, fixing mechanism; 301, box body; 302, pedal; 303, fixing cone; 304, second spring; 305, through hole; 4, support rod; 5, lead screw; 6, limiting rod; 7, slider; 8, housing; 9, rotating shaft; 10, gear; 11, turntable; 12, turning handle; 13, positioning screw. Specific embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Referring to Figures 1 - 5 , the present utility model provides a technical solution: a support device for coal mine excavation, including a support cylinder 1, a support rod 4, and an adjustment mechanism 2. The support cylinder 1 is used to support the bottom and side walls of the roadway; the support rod 4 is used to support the top and side walls of the roadway. The support rod 4 is slidably connected to the support cylinder 1, and both the support rod 4 and the support cylinder 1 are provided with two; the adjustment mechanism 2 is located between the two support rods 4, and includes a connecting cylinder 201 and a connecting rod 202. The connecting cylinder 201 and the connecting rod 202 are respectively welded to the two support rods 4. The connecting rod 202 is slidably connected to the inner wall of the connecting cylinder 201. The connecting rod 202 and the connecting cylinder 201 can slide relative to each other to adjust the width, and the connecting rod 202 and the connecting cylinder 201 can be limited to adjust the specific width. The support rod 4 slides in the support cylinder 1 to adjust the support height. The connecting cylinder 201 and the connecting rod 202 are used to support the top of the roadway;

[0025] A slot 203 is formed on the outer side of the connecting rod 202. There are a plurality of the slots 203, and the plurality of slots 203 are equidistantly arranged. A fixing block 204 is fixedly connected to the outer side of the connecting cylinder 201. A plug rod 205 is slidably mounted on the fixing block 204. The plug rod 205 is slidably connected to the connecting cylinder 201. The plug rod 205 is inserted into the inner wall of the slot 203. One end of the plug rod 205 is fixedly connected with a handle 206. A chute 207 is formed inside the fixing block 204. A limiting ring 208 is fixedly connected to the outer wall of the plug rod 205. The limiting ring 208 is slidably connected to the inner wall of the chute 207. A first spring 209 is fixedly connected between the limiting ring 208 and the inner wall of the chute 207. By pulling the handle 206 outwards, the handle 206 drives the plug rod 205 to slide and removes the plug rod 205 from the current slot 203. At the same time, the plug rod 205 compresses the first spring 209 through the limiting ring 208. Then, the connecting rod 202 and the connecting cylinder 201 slide relative to each other. After adjusting the support width, the handle 206 is released. The reset of the first spring 209 causes the plug rod 205 to be inserted into a new slot 203, so that the width of the support member can be adjusted, and the application range is wide. During disassembly, the connecting rod 202 can be slid out of the connecting cylinder 201, so that the two support rods 4 and the link support cylinder 1 can be disassembled, which is convenient for transportation;

[0026] A fixing mechanism 3 is arranged on the connecting cylinder 201. The fixing mechanism 3 includes a box body 301, a pedal 302, a fixing cone 303, a second spring 304 and a through hole 305. The box body 301 is fixedly connected to the outer side of the connecting cylinder 201. The pedal 302 is slidably connected to the inner wall of the box body 301. The fixing cone 303 is fixedly connected to the bottom of the pedal 302. The second spring 304 is fixedly connected between the pedal 302 and the inner wall of the box body 301. The through hole 305 is formed in the bottom of the box body 301. The through hole 305 is used for the passage of the fixing cone 303. By stepping on the pedal 302, the pedal 302 drives the fixing cone 303 to move downwards and compresses the second spring 304 until the fixing cone 303 is inserted into the roadway, and then the whole support member can be fixed, improving the stability of the support. During transportation, the second spring 304 can prevent the fixing cone 303 from easily falling downwards and prevent stabbing the staff, which is convenient for transportation;

[0027] The support cylinder 1 is rotatably installed with a lead screw 5 through a bearing. A limiting rod 6 is fixedly connected between the inner walls of the support cylinder 1. The lead screw 5 is threadedly connected with a slider 7. The slider 7 is slidably connected with the limiting rod 6. The top of the slider 7 is fixedly connected with the bottom of the support rod 4. The outside of the support cylinder 1 is fixedly connected with a housing 8. A rotating shaft 9 is rotatably installed on the housing 8. Fixed gears 10 are fixedly connected to the outer walls of the rotating shaft 9 and the lead screw 5 respectively. The two gears 10 are meshed and connected. One end of the rotating shaft 9 extending out of the housing 8 is fixedly connected with a turntable 11. The top of the turntable 11 is fixedly connected with a turning handle 12. A positioning screw 13 is arranged on the support cylinder 1. The lead screw 5 is arranged on the rotation path of the positioning screw 13. By rotating the turning handle 12, the turning handle 12 drives the rotating shaft 9 to rotate through the turntable 11. Under the transmission of the gears 10, the lead screw 5 rotates. Under the limitation of the limiting rod 6, the slider 7 moves up and down along the lead screw 5, thereby driving the support rod 4 to slide on the support cylinder 1 to adjust the support height. After the adjustment is completed, the positioning screw 13 is rotated to fix the lead screw 5 to prevent the lead screw 5 from rotating.

[0028] Specifically, the working process or working principle of this coal mine mining support device is as follows: The staff pulls the handle 206 outwards. The handle 206 drives the insertion rod 205 to slide and removes the insertion rod 205 from the current slot 203. At the same time, the insertion rod 205 compresses the first spring 209 through the limiting ring 208. Then, the connecting rod 202 and the connecting cylinder 201 slide relative to each other. After adjusting the support width, the handle 206 is released. The first spring 209 resets to make the insertion rod 205 insert into a new slot 203, which can adjust the width of the support member and has a wide application range.

[0029] The staff rotates the turning handle 12. The turning handle 12 drives the rotating shaft 9 to rotate through the turntable 11. Under the transmission of the gears 10, the lead screw 5 rotates. Under the limitation of the limiting rod 6, the slider 7 moves up and down along the lead screw 5, thereby driving the support rod 4 to slide on the support cylinder 1 to adjust the support height. After the adjustment is completed, the positioning screw 13 is rotated to fix the lead screw 5 to prevent the lead screw 5 from rotating. By stepping on the pedal 302, the pedal 302 drives the fixed cone 303 to move downwards and compress the second spring 304 until the fixed cone 303 is inserted into the roadway, and then the entire support member can be fixed, improving the stability of the support.

Claims

1. A supporting device for coal mining, characterized in that: include A support cylinder (1), the support cylinder (1) being used to support the bottom and side walls of the tunnel; A support rod (4), the support rod (4) being used to support the top and side walls of the tunnel, the support rod (4) being slidably connected to the support tube (1), and two of each of the support rod (4) and the support tube (1) are provided; The adjusting mechanism (2) is located between the two support rods (4), and comprises a connecting tube (201) and a connecting rod (202). The connecting tube (201) and the connecting rod (202) are respectively welded to the two support rods (4). The connecting rod (202) is slidably connected to the inner wall of the connecting tube (201). The connecting rod (202) and the connecting tube (201) can slide relative to each other to adjust the width. The connecting rod (202) and the connecting tube (201) can be limited to adjust the specific width.

2. A supporting device for coal mining according to claim 1, characterized in that: A slot (203) is provided on the outer side of the connecting rod (202), and a plurality of the slots (203) are provided, and the plurality of the slots (203) are arranged at equal distances.

3. A supporting device for coal mining according to claim 2, characterized in that: The outer side of the connecting tube (201) is fixedly connected to a fixing block (204), an insert rod (205) is slidably mounted on the fixing block (204), the insert rod (205) is slidably connected to the connecting tube (201), the insert rod (205) is plugged into the inner wall of the slot (203), and one end of the insert rod (205) is fixedly connected to a handle (206).

4. A supporting device for coal mining according to claim 3, characterized in that: A sliding groove (207) is provided inside the fixed block (204); a limiting ring (208) is fixedly connected to the outer wall of the insertion rod (205); the limiting ring (208) is slidably connected to the inner wall of the sliding groove (207); and a first spring (209) is fixedly connected between the limiting ring (208) and the inner wall of the sliding groove (207).

5. A supporting device for coal mining according to claim 4, characterized in that: The connecting tube (201) is provided with a fixing mechanism (3), the fixing mechanism (3) comprising a box body (301), a pedal (302), a fixing cone (303), a second spring (304) and a through hole (305), and the box body (301) is fixedly connected to the outside of the connecting tube (201).

6. A supporting device for coal mining according to claim 5, characterized in that: The pedal (302) is slidably connected to the inner wall of the box body (301), the fixed cone (303) is fixedly connected to the bottom of the pedal (302), the second spring (304) is fixedly connected between the pedal (302) and the inner wall of the box body (301), and the through hole (305) is opened at the bottom of the box body (301).

7. A supporting device for coal mining according to claim 6, characterized in that: The support tube (1) is rotatably mounted with a screw rod (5) via a bearing, a limit rod (6) is fixedly connected between the inner walls of the support tube (1), a slider (7) is threadedly connected to the screw rod (5), the slider (7) is slidably connected to the limit rod (6), and the top of the slider (7) is fixedly connected to the bottom of the support rod (4).

8. A supporting device for coal mining according to claim 7, characterized in that: The outer side of the support tube (1) is fixedly connected to a housing (8), a rotating shaft (9) is rotatably mounted on the housing (8), the outer wall of the rotating shaft (9) and the outer wall of the screw rod (5) are both fixedly connected to a gear (10), the two gears (10) are meshingly connected, one end of the rotating shaft (9) extending out of the housing (8) is fixedly connected to a turntable (11), the top of the turntable (11) is fixedly connected to a turning handle (12), a positioning screw (13) is provided on the support tube (1), and the screw rod (5) is arranged on the rotation path of the positioning screw (13).

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