Detachable top beam hydraulic support for coal mine

Abstract

The utility model provides a detachable top beam hydraulic support for a coal mine, which belongs to the technical field of supports, and comprises a hydraulic support, a detachable top beam and a hydraulic cylinder, a support plate is arranged at the bottom in the hydraulic support, a top plate is arranged at the top of the hydraulic support, a moving block is arranged in the middle of the support plate, slideways are arranged on two sides of the moving block, and the slideways are fixed on the upper surface of the support plate. Supporting sliding plates are arranged on the two sides of the connecting block, a detachable top beam is arranged between the upper surfaces of the supporting sliding plates, an opening is formed in the front face of the hydraulic support, a plurality of first positioning blocks are arranged behind the opening, the upper surfaces of the first positioning blocks are fixed to the lower surface of a top plate, and positioning grooves are formed in the rear portions of the first positioning blocks in an embedded mode; a plurality of second positioning blocks are arranged at the rear end of the detachable top beam, a plurality of positioning pins are arranged at the rear ends of the second positioning blocks, the positioning grooves are matched with the positioning pins in a clamped mode, a hydraulic cylinder is arranged behind the moving block, the connecting block can be driven by a hydraulic push rod to enable the detachable top beam to move towards the opening, and the positioning grooves and the positioning pins are fixed in a clamped mode.

Description

Technical Field

[0001] The utility model relates to the technical field of supports, in particular to a detachable top beam hydraulic support for coal mines. Background Art

[0002] Hydraulic support is an important part of coal mine comprehensive mining equipment. It uses hydraulic power to achieve lifting, forward movement and other movements. It can reliably and effectively support and control the roof of the working face, isolate the goaf, prevent gangue from entering the mining face and advance the conveyor. It is used in conjunction with a coal mining machine to achieve comprehensive mechanization of coal mining, solve the contradiction that roof management lags behind coal mining work in coal mining, further improve and enhance the efficiency of coal mining and transportation equipment, reduce the labor intensity of coal miners, and maximize the protection of the life safety of coal miners. At present, the top beam specifications of the hydraulic support are fixed, so that the support position of the hydraulic support is fixed and cannot be adjusted, resulting in a limited scope of use of the hydraulic support. In order to solve the above problems, a detachable top beam hydraulic support for coal mines is proposed to solve the above problems. Utility Model Content

[0003] In view of this, the utility model provides a detachable top beam hydraulic support for coal mines. The utility model can move the detachable top beam toward the opening by driving the connecting block through the hydraulic push rod, so that the positioning groove and the positioning hook are engaged and fixed.

[0004] In order to solve the above technical problems, the utility model provides a detachable top beam hydraulic support for coal mines, comprising a hydraulic support, a detachable top beam and a hydraulic cylinder, a support plate is provided at the bottom of the hydraulic support, a top plate is provided at the top of the hydraulic support, a moving block is provided in the middle of the support plate, slideways are provided on both sides of the moving block, the slideways are fixed on the upper surface of the support plate, a connecting block is provided above the moving block, supporting slide plates are provided on both sides of the connecting block, a detachable top beam is provided between the upper surfaces of the supporting slide plates, an opening is provided on the front side of the hydraulic support, a plurality of first positioning blocks are provided behind the opening, the upper surface of the first positioning block is fixed to the lower surface of the top plate, a positioning groove is embedded in the rear part of the first positioning block, a plurality of second positioning blocks are provided at the rear end of the detachable top beam, a plurality of positioning hooks are provided at the rear end of the second positioning block, the positioning grooves are engaged with the positioning hooks, and a hydraulic cylinder is provided behind the moving block.

[0005] A connecting groove for fixing a sealing sleeve is arranged in the rear of the moving block, a sealing sleeve for protecting and sealing the hydraulic push rod is arranged in the connecting groove, and a hydraulic push rod for driving the moving block and the detachable top beam to move is arranged in the sealing sleeve.

[0006] A groove is provided on the upper surface of the moving block for connecting the moving block and the connecting block. The groove cooperates with the connecting block. Connecting plates are provided on the front and rear surfaces of the groove for reinforcing the fixing of the moving block and the connecting block. The two ends of the connecting plate are fixed to the moving block, and the middle part of the connecting plate is fixed to the connecting block.

[0007] A sliding support plate for cooperating with the moving block is erected in the middle of the slideway, and a sliding groove for connecting the sliding support plate and the supporting slide plate is provided on the upper surface of the sliding support plate. The upper surface of the sliding groove is fixed to the supporting slide plate, and the sliding support plate is slidably matched with the slideway.

[0008] A hydraulic fixer for connecting the hydraulic push rod with the moving block is arranged at the front end of the hydraulic push rod, and the front end of the hydraulic fixer is fixed with the moving block.

[0009] A hydraulic connector for connecting the hydraulic push rod and the hydraulic cylinder is arranged at the rear end of the hydraulic push rod. The hydraulic connector is connected to the hydraulic cylinder, and the hydraulic cylinder is connected to the upper surface of the support plate.

[0010] A limit plate is provided at the front end of the supporting slide plate for extending the detachable top beam to the maximum position, a limit plate is provided at the front end of the slideway, the height of the limit plate is consistent with the upper surface of the supporting slide plate, linkage blocks are provided on both sides of the moving block, and the linkage blocks are fixed to one side of the sliding support plate.

[0011] A fixing plate is provided at the rear end of the supporting slide plate for sliding the supporting plate to retract to the deepest position, the bottom of the fixing plate is fixed to the upper surface of the supporting plate, and a fixing plate is provided at the rear end of the slideway.

[0012] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0013] 1. The hydraulic cylinder drives the hydraulic push rod, and then the moving block drives the connecting block to move, so that the detachable top beam on the supporting slide plate moves toward the opening, and after moving to the limit plate, the maximum bearing pressure of the detachable top beam is reached, so that the positioning groove in the first positioning block is engaged and fixed with the positioning groove on the second positioning block to improve the stability of the detachable top beam, and then the detachable top beam is displaced to increase the protection area, thereby maximizing the life safety of coal miners.

[0014] 2. A limit plate is provided at the front end of the support slide plate for extending the removable top beam to the maximum position. A limit plate is provided at the front end of the slideway. The height of the limit plate is consistent with the upper surface of the support slide plate. Linkage blocks are provided on both sides of the moving block. The linkage blocks are fixed to one side of the sliding support plate, thereby improving the supporting capacity of the top beam movement.

[0015] 3. A connecting groove for fixing a sealing sleeve is provided in the rear part of the moving block. A sealing sleeve for protecting and sealing the hydraulic push rod is provided in the connecting groove. A hydraulic push rod for driving the moving block and the detachable top beam to move is provided in the sealing sleeve. The use of the sealing sleeve can improve the protection capability of the hydraulic push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a side sectional view of the main body of a detachable top beam hydraulic support for coal mines of the utility model;

[0017] Figure 2It is a top cross-sectional view of the utility model;

[0018] Figure 3 It is a rear cross-sectional view of the utility model;

[0019] Figure 4 It is a rear cross-sectional view of the utility model.

[0020] Explanation of the reference numerals: 100, hydraulic support; 101, detachable top beam; 102, hydraulic cylinder; 103, top plate; 104, opening; 105, support plate; 200, moving block; 201, slideway; 202, connecting block; 203, supporting slide plate; 204, groove; 205, connecting plate; 206, sliding support plate; 207, slide groove; 208, limit plate; 209, fixed plate; 210, linkage block; 300, first positioning block; 301, positioning groove; 302, second positioning block; 303, positioning lever; 400, connecting groove; 401, sealing sleeve; 402, hydraulic push rod; 403, hydraulic fixer; 404, hydraulic connector. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 The technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the utility model.

[0022] like Figure 1-4As shown: the present embodiment provides a detachable top beam hydraulic support for coal mines, comprising a hydraulic support 100, a detachable top beam 101 and a hydraulic cylinder 102. A support plate 105 with a slideway 201 is provided at the bottom of the hydraulic support 100. The support plate 105 is also used to support a moving block 200 so that the moving block 200 slides. A top plate 103 for protectively supporting the top of the hydraulic support 100 is provided at the top. A moving block 200 for driving a connecting block 202 and a detachable top beam 101 to move is provided in the middle of the support plate 105. Slideways 201 for auxiliary support of the movement of the detachable top beam 101 are provided on both sides of the moving block 200. The slideways 201 are fixed on the upper surface of the support plate 105. A connecting block 202 for connecting the moving block 200 and the detachable top beam 101 is provided above the moving block 200. Both sides of the connecting block 202 are provided with a connecting plate 206 for auxiliary support along the slideway 201 is a movable support slide 203, and a detachable top beam 101 is provided between the upper surfaces of the support slide 203 for extending the protection area. An opening 104 is provided on the front side of the hydraulic support 100 for the front end of the detachable top beam 101 to extend out, and a plurality of first positioning blocks 300 for opening positioning grooves 301 are provided behind the opening 104. The upper surface of the first positioning block 300 is connected and fixed to the lower surface of the top plate 103 by bolts, and a positioning groove 301 for engaging with the positioning groove 303 is embedded in the rear part of the first positioning block 300. A plurality of second positioning blocks 302 for fixing the positioning groove 303 are provided at the rear end of the detachable top beam 101, and a plurality of positioning grooves 303 for connecting the second positioning block 302 with the first positioning block 300 are provided at the rear end. The positioning groove 301 is engaged with the positioning groove 303, and a hydraulic cylinder 102 for driving the hydraulic push rod 402 is provided at the rear of the moving block 200.

[0023] When in use, the hydraulic cylinder 102 drives the hydraulic push rod 402, and then the moving block 200 drives the connecting block 202 to move, so that the removable top beam 101 on the supporting slide plate 203 moves toward the opening 104, and after moving to the limit plate 208, the maximum bearing pressure of the removable top beam 101 is reached, so that the positioning groove 301 in the first positioning block 300 is engaged and fixed with the positioning groove 303 on the second positioning block 302, so as to improve the stability of the removable top beam 101, and then the removable top beam 101 is displaced to increase the protection area.

[0024] This embodiment provides a detachable top beam hydraulic support 100 for coal mines.

[0025] like Figure 1 , 2As shown: a connecting groove 400 for fixing a sealing sleeve 401 is provided in the rear part of the moving block 200, the connecting groove 400 is embedded in the rear part of the moving block 200, a sealing sleeve 401 for protecting and sealing a hydraulic push rod 402 is provided in the connecting groove 400, the connecting groove 400 and the sealing sleeve 401 are welded and fixed, and a hydraulic push rod 402 for driving the moving block 200 and the detachable top beam 101 to move is provided in the sealing sleeve 401.

[0026] like Figure 3 , 4 As shown: the upper surface of the moving block 200 is provided with a groove 204 for connecting the moving block 200 and the connecting block 202, the groove 204 cooperates with the connecting block 202, and the front and rear surfaces of the groove 204 are provided with connecting plates 205 for reinforcing the fixing of the moving block 200 and the connecting block 202, both ends of the connecting plate 205 are fixed to the moving block 200, the moving block 200 and the connecting block 202 are fixed by bolts through the connecting plate 205, and the middle part of the connecting plate 205 is fixed to the connecting block 202 by bolts.

[0027] like Figure 1 , 2 As shown in , 3 and 4: a sliding support plate 206 for cooperating with the movement of the moving block 200 is erected in the middle of the slide 201, and a sliding groove 207 for sliding the sliding support plate 206 is provided on the upper surface of the sliding support plate 206, the sliding groove 207 is slidably matched with the sliding support plate 206, and the sliding support plate 206 is slidably matched with the slide 201.

[0028] like Figure 1 , 2 As shown: a hydraulic fixer 403 for connecting the hydraulic push rod 402 with the moving block 200 is provided at the front end of the hydraulic push rod 402, the hydraulic push rod 402 and the hydraulic fixer 403 are sealed and fixed, the front end of the hydraulic fixer 403 is fixed to the moving block 200 with bolts, a hydraulic connector 404 for connecting the hydraulic push rod 402 with the hydraulic cylinder 102 is provided at the rear end of the hydraulic push rod 402, the hydraulic push rod 402 and the hydraulic connector 404 are mechanically sealed, the hydraulic connector 404 is sealed and connected to the hydraulic cylinder 102, and the hydraulic cylinder 102 is fixed to the upper surface of the support plate 105 with bolts.

[0029] like Figure 1 , 2As shown in , 3 and 4: a limit plate 208 is provided at the front end of the supporting slide 203 for extending the detachable top beam 101 to the maximum position, a limit plate 208 is provided at the front end of the slide 201, the limit plate 208 is connected to the upper surface of the supporting plate 105 by using a steel plate with bolts, the height of the limit plate 208 is consistent with the upper surface of the supporting slide 203, linkage blocks 210 for connecting the moving block 200 with the sliding support plate 206 are provided on both sides of the moving block 200, the linkage block 210 is fixed to one side of the sliding support plate 206 by bolts, a fixing plate 209 is provided at the rear end of the supporting slide 203 for contracting the sliding support plate 206 to the deepest position, the bottom of the fixing plate 209 is fixed to the upper surface of the supporting plate 105 by using a steel plate with bolts, and a fixing plate 209 is provided at the rear end of the slide 201.

[0030] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A detachable top beam hydraulic support for coal mines, characterized in that: The invention comprises a hydraulic support (100), a detachable top beam (101) and a hydraulic cylinder (102); a support plate (105) is provided at the bottom of the hydraulic support (100); a top plate (103) is provided at the top of the hydraulic support (100); a moving block (200) is provided in the middle of the support plate (105); slideways (201) are provided on both sides of the moving block (200); the slideways (201) are fixed on the upper surface of the support plate (105); a connecting block (202) is provided above the moving block (200); supporting slide plates (203) are provided on both sides of the connecting block (202); the detachable top plate (203) is provided between the upper surfaces of the supporting slide plates (203); The hydraulic support (100) is provided with an opening (104) on the front side, and a plurality of first positioning blocks (300) are provided behind the opening (104), the upper surface of the first positioning block (300) is fixed to the lower surface of the top plate (103), and a positioning groove (301) is embedded in the rear part of the first positioning block (300), and a plurality of second positioning blocks (302) are provided at the rear end of the detachable top beam (101), and a plurality of positioning hooks (303) are provided at the rear end of the second positioning block (302), and the positioning grooves (301) are engaged with the positioning hooks (303), and the hydraulic cylinder (102) is provided at the rear of the movable block (200).

2. A detachable top beam hydraulic support (100) for coal mines according to claim 1, characterized in that: A connecting groove (400) is provided in the rear portion of the moving block (200), a sealing sleeve (401) is provided in the connecting groove (400), and a hydraulic push rod (402) is provided in the sealing sleeve (401).

3. A detachable top beam hydraulic support (100) for coal mines as claimed in claim 2, characterized in that: The upper surface of the moving block (200) is provided with a groove (204), the groove (204) cooperates with the connecting block (202), and connecting plates (205) are provided on the front and rear surfaces of the groove (204), the two ends of the connecting plate (205) are fixed to the moving block (200), and the middle part of the connecting plate (205) is fixed to the connecting block (202).

4. A detachable top beam hydraulic support (100) for coal mines as claimed in claim 3, characterized in that: A sliding support plate (206) is vertically arranged in the middle of the slideway (201), a sliding groove (207) is arranged on the upper surface of the sliding support plate (206), the upper surface of the sliding groove (207) is fixed to the lower surface of the supporting slide plate (203), and the sliding support plate (206) is slidably matched with the slideway (201).

5. A detachable top beam hydraulic support (100) for coal mines as claimed in claim 4, characterized in that: A hydraulic fixer (403) is provided at the front end of the hydraulic push rod (402), and the front end of the hydraulic fixer (403) is fixed to the moving block (200).

6. A detachable top beam hydraulic support (100) for coal mines as claimed in claim 5, characterized in that: A hydraulic connector (404) is provided at the rear end of the hydraulic push rod (402), the hydraulic connector (404) is connected to the hydraulic cylinder (102), and the hydraulic cylinder (102) is connected to the upper surface of the support plate (105).

7. A detachable top beam hydraulic support (100) for coal mines according to claim 6, characterized in that: A limit plate (208) is provided at the front end of the support slide plate (203), and the limit plate (208) is provided at the front end of the slideway (201). The height of the limit plate (208) is consistent with the upper surface of the support slide plate (203). Linkage blocks (210) are provided on both sides of the moving block (200), and the linkage blocks (210) are fixed to one side of the sliding support plate (206).

8. A detachable top beam hydraulic support (100) for coal mines as claimed in claim 7, characterized in that: A fixing plate (209) is provided at the rear end of the supporting slide plate (203), the bottom of the fixing plate (209) is fixed to the upper surface of the supporting plate (105), and the fixing plate (209) is provided at the rear end of the slideway (201).

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