Temporary supporting hydraulic support for coal mining tunneling working face

Abstract

The utility model discloses a temporary supporting hydraulic support for a coal mining tunneling working face. The temporary supporting hydraulic support comprises a supporting frame, a hydraulic supporting assembly and a protection assembly. The hydraulic supporting assemblies are symmetrically arranged on the back face of the supporting frame and used for supporting the supporting frame to be attached to the tunneling face. The protection assembly is arranged on the front face of the supporting frame and used for intercepting coal briquettes falling off from the supporting frame, the protection assembly comprises a protection structure arranged on the front face of the supporting frame, and a fixing part is connected to the back face of the supporting frame in a penetrating mode; the protection assembly is arranged on the back face of the supporting frame, the protection structure and the supporting frame are connected and locked through the fixing part in the protection assembly, and in the occasions that the protection structure is abraded by coal gangue and needs to be replaced, compared with the situation that the protection structure and the supporting frame are fixed in a penetrating and inserting mode through a plurality of bolts, replacement is convenient. The fixing part can quickly realize separation and replacement of the protection structure and the supporting frame, and the problem that time is consumed when a plurality of bolts are mounted and separated is solved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment technology, and in particular to a hydraulic support for temporary support in coal mining and tunneling operations. Background Technology

[0002] In the process of coal mining, the coal mining and tunneling face is an important link in coal production. Its safe production and efficient tunneling have always been the focus of the industry. With the continuous development of coal mining technology, hydraulic supports are being used more and more widely in the coal mining and tunneling face, becoming one of the key technical equipment to ensure the safety of the working face.

[0003] However, existing coal mining and tunneling work faces temporary support hydraulic supports that typically use multiple bolts to fix the protective structure to the support plate. The protective structure is made of plastic. During long-term use, the plastic protective structure is easily worn by coal gangue at the working face, and the protective structure cannot prevent coal gangue from falling. In this case, in order to replace the protective structure, it is necessary to disassemble and install multiple bolts one by one, which consumes the entire replacement time of the protective structure.

[0004] Therefore, how to design a hydraulic support for emergency support in coal mining and tunneling operations that can quickly separate and replace the protective structure from the support frame has become a pressing technical problem to be solved in the current coal mining field. Utility Model Content

[0005] The purpose of this utility model is to provide a temporary hydraulic support for coal mining and tunneling operations to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temporary hydraulic support for coal mining and tunneling working faces, comprising:

[0007] A support frame for supporting the tunnel face;

[0008] A hydraulic support assembly is symmetrically arranged on the back of the support frame, and the hydraulic support assembly is used to support the fit between the support frame and the tunneling face;

[0009] A protective component is disposed on the front of a support frame and is used to intercept coal blocks falling from the support frame. The protective component includes a protective structure disposed on the front of the support frame and a fixing part for limiting the protective structure is inserted and connected to the back of the support frame.

[0010] Preferably, the protective structure includes:

[0011] A connecting frame is disposed on the front side of the support frame;

[0012] An interception net is disposed inside the connecting frame, and the front of the interception net has multiple diamond-shaped holes.

[0013] Preferably, the fixing part includes:

[0014] A sleeve, the end of which is inserted and connected to the back of the support frame;

[0015] The L-shaped insert is inserted into the inner cavity of the sleeve, the back of the support frame and the back of the connecting frame in sequence.

[0016] A locking block is provided at the intersection of the L-shaped insert and the connecting frame, and the locking block is used to limit the L-shaped insert.

[0017] A retainer is disposed in the inner cavity of the sleeve, and the retainer is used to prevent the locking block from rotating.

[0018] Preferably, the back of the connecting frame is provided with a connecting groove for the L-shaped insert and the locking block to pass through, and the inner wall of the connecting groove is provided with a locking groove for engaging the locking block.

[0019] Preferably, the retainer includes:

[0020] A retaining ring, which is sleeved on the outside of the L-shaped insert;

[0021] A compression spring is sleeved on the outside of the L-shaped insert and located at the bottom of the fixing ring.

[0022] Preferably, the hydraulic support assembly includes:

[0023] Multiple hydraulic folding arms, the top ends of which are fixedly connected to the back of the support frame;

[0024] Multiple bases, the top of which is fixedly connected to the bottom end of the hydraulic folding arm.

[0025] Preferably, the bottom of the base is provided with a pad, which is used to increase the contact area between the base and the ground.

[0026] The technical effects and advantages of this utility model are as follows:

[0027] This utility model features a protective component on the back of the support frame. The fixing part in the protective component connects and locks the protective structure to the support frame. When the protective structure is worn by coal gangue and needs to be replaced, compared to using multiple bolts to fix the protective structure to the support frame, the fixing part of this design can quickly detach and replace the protective structure from the support frame, avoiding the time-consuming problem of installing and removing multiple bolts. Attached Figure Description

[0028] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0029] Figure 2 The second schematic diagram shows the overall structure of this utility model.

[0030] Figure 3 The third schematic diagram shows the overall structure of this utility model.

[0031] Figure 4 This is a structural schematic diagram of the fixing part and support frame of this utility model.

[0032] Figure 5 This is a cross-sectional view of the connection between the fixing part, the support frame and the connecting frame of this utility model.

[0033] Figure 6 This is a partial structural diagram of the connecting frame of this utility model.

[0034] In the diagram: 1. Base; 101. Pad; 2. Hydraulic folding arm; 3. Support frame; 4. Protective structure; 401. Connecting frame; 4011. Connecting groove; 4012. Locking groove; 402. Interception net; 5. Fixing part; 501. Sleeve; 502. L-shaped insert; 503. Fixing ring; 504. Compression spring; 505. Locking block. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] This utility model provides, for example Figure 1-6 As shown:

[0037] Example 1,

[0038] A temporary hydraulic support for coal mining and tunneling work, comprising: a support frame 3, a hydraulic support assembly, and a protective assembly;

[0039] Specifically, the support frame 3 is used to support the tunneling face, the hydraulic support components are symmetrically arranged on the back of the support frame 3, the hydraulic support components are used to support the fit between the support frame 3 and the tunneling face, and the protective components are arranged on the front of the support frame 3, the protective components are used to intercept coal blocks falling from the support frame 3.

[0040] It should be noted that the support frame 3 is made of alloy steel. In order to reduce its own weight, the support frame 3 has multiple triangular hollow holes on its surface. The protective components are used to prevent coal blocks from falling through the hollow holes.

[0041] Specifically, the protective components include a protective structure 4 disposed on the front of the support frame 3, and a fixing part 5 for limiting the protective structure 4 is inserted and connected to the back of the support frame 3.

[0042] It should be noted that the protective structure 4 includes a connecting frame 401 and an intercepting net 402. The connecting frame 401 is located on the front of the support frame 3, and the intercepting net 402 is located on the inner side of the connecting frame 401. The front of the intercepting net 402 has multiple diamond-shaped holes.

[0043] Specifically, the connecting frame 401 is made of stainless steel, and the intercepting net 402 is made of polypropylene. It is glued to the connecting frame 401, and the diamond-shaped holes facilitate the flow of gas inside the tunnel face.

[0044] It should be noted that the fixing part 5 includes: sleeve 501, L-shaped insert 502, locking block 505 and retaining member;

[0045] Specifically, the end of the sleeve 501 is inserted and connected to the back of the support frame 3, the end of the L-shaped insert 502 is sequentially inserted and connected to the inner cavity of the sleeve 501, the back of the support frame 3 and the back of the connecting frame 401, the locking block 505 is provided at the insertion point of the L-shaped insert 502 and the connecting frame 401, and the retaining member is provided in the inner cavity of the sleeve 501.

[0046] It should be noted that the locking block 505 is used to limit the L-shaped insert 502, the retaining member is used to prevent the locking block 505 from rotating, the sleeve 501 and the support frame 3 are fixed by welding at the insertion point, the locking block 505 and the L-shaped insert 502 are fixed by welding at the end, the locking block 505 and the L-shaped insert 502 form an L-shape, the back of the connecting frame 401 is provided with a connecting groove 4011 for the L-shaped insert 502 and the locking block 505 to pass through, and the inner wall of the connecting groove 4011 is provided with a locking groove 4012 for locking the locking block 505.

[0047] Specifically, the locking groove 4012 is a circular groove. After the locking block 505 is inserted into the locking groove 4012, the L-shaped insert 502 is rotated so that the locking block 505 is engaged with the inner wall of the locking groove 4012. The retaining components include: a retaining ring 503 and a compression spring 504.

[0048] It should be noted that the fixing ring 503 is sleeved on the outside of the L-shaped insert 502, and the compression spring 504 is sleeved on the outside of the L-shaped insert 502 and located at the bottom of the fixing ring 503.

[0049] The L-shaped insert 502 and the fixing ring 503 are fixed by welding. The compression spring 504 pushes the fixing ring 503 to make the locking block 505 stick tightly to the inner wall of the locking groove 4012, so as to prevent the locking block 505 from rotating and shifting and falling off from the connecting groove 4011.

[0050] Example 2,

[0051] A hydraulic support assembly is used in the coal mining and tunneling workface temporary support hydraulic support in Embodiment 1;

[0052] The hydraulic support assembly includes multiple hydraulic folding arms 2 and multiple bases 1;

[0053] Specifically, the top ends of multiple hydraulic folding arms 2 are fixedly connected to the back of the support frame 3; the top of the base 1 is fixedly connected to the bottom end of the hydraulic folding arms 2.

[0054] It should be noted that the working principle of the hydraulic folding arm 2 is based on the working principle of the SQ16Z-4CJ folding arm. The top of the hydraulic folding arm 2 is welded and fixed to the back of the support frame 3. The base 1 is fixed to the bottom of the hydraulic folding arm 2 by bolts. A pad 101 is welded to the bottom of the base 1 to increase the contact area between the base 1 and the ground.

[0055] In practical use, a protective component is provided on the back of the support frame 3. The fixing part 5 in the protective component connects and locks the protective structure 4 to the support frame 3. When the protective structure 4 is worn by coal gangue and needs to be replaced, compared with the protective structure 4 and the support frame 3 being fixed by multiple bolts, the fixing part 5 of this design can quickly detach and replace the protective structure 4 and the support frame 3, avoiding the time-consuming problem of installing and removing multiple bolts.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic support for temporary support of a coal face, characterised in that, include: Support frame (3), the support frame (3) is used for supporting the tunnel face; A hydraulic support assembly is symmetrically arranged on the back of the support frame (3) and is used to support the fit between the support frame (3) and the tunneling face; The protective component is disposed on the front of the support frame (3) and is used to intercept coal blocks falling from the support frame (3). The protective component includes a protective structure (4) disposed on the front of the support frame (3) and a fixing part (5) for limiting the protective structure (4) is inserted and connected to the back of the support frame (3).

2. The hydraulic support for temporary support of a coal face according to claim 1, characterised in that, The protective structure (4) includes: A connecting frame (401) is disposed on the front side of the support frame (3); An interception net (402) is disposed on the inner side of the connecting frame (401), and the front of the interception net (402) has multiple diamond-shaped holes.

3. The hydraulic support for temporary support of a coal face according to claim 2, characterised in that, The fixing part (5) includes: A sleeve (501) is inserted and connected at its end to the back of the support frame (3); L-shaped insert (502), the ends of which are sequentially inserted into the inner cavity of the sleeve (501), the back of the support frame (3), and the back of the connecting frame (401); Locking block (505) is disposed at the intersection of L-shaped post (502) and connecting frame (401), and the locking block (505) is used to limit L-shaped post (502). A retainer is disposed in the inner cavity of the sleeve (501) and is used to prevent the locking block (505) from rotating.

4. The hydraulic support for temporary support of a coal face according to claim 3, characterised in that, The back of the connecting frame (401) is provided with a connecting groove (4011) for the L-shaped insert (502) and the locking block (505) to pass through, and the inner wall of the connecting groove (4011) is provided with a locking groove (4012) for engaging the locking block (505).

5. The hydraulic support according to claim 3, characterized in that, The retaining element includes: A fixing ring (503) is sleeved on the outside of the L-shaped insert (502); Compression spring (504) is sleeved on the outside of L-shaped insert (502) and located at the bottom of fixing ring (503).

6. The hydraulic support for temporary support of a coal face according to claim 5, characterised in that, The hydraulic support assembly includes: Multiple hydraulic folding arms (2), the top ends of the multiple hydraulic folding arms (2) are fixedly connected to the back of the support frame (3); Multiple bases (1), the top of which is fixedly connected to the bottom end of the hydraulic folding arm (2).

7. The hydraulic support according to claim 6, characterized in that, The bottom of the base (1) is provided with a pad (101), which is used to increase the contact area between the base (1) and the ground.

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