Inter-frame waste rock blocking supporting structure for fully mechanized coal mining face of coal mine

Abstract

The utility model belongs to the technical field of inter-frame waste rock blocking of a coal mine fully mechanized coal mining face, particularly relates to an inter-frame waste rock blocking supporting structure for the coal mine fully mechanized coal mining face, and aims to solve the problems that a waste rock blocking net is usually fixedly mounted at the top of a mine hole, so that the position of the waste rock blocking net cannot be adjusted along with pushing of a hydraulic support and a scraper conveyer; in order to solve the problems that the labor intensity of workers and the operation danger are increased due to the fact that a waste rock blocking net is often required to be continuously disassembled and assembled by the workers, the following scheme is provided: the device comprises a hydraulic support top beam, and the front end of the hydraulic support top beam is slidably connected with a hydraulic support telescopic front beam and a telescopic waste rock blocking net assembly through a hydraulic rod; the hydraulic support is arranged on the top beams of the two adjacent hydraulic supports. When the hydraulic support is used, along with pushing of the hydraulic support, the position of the waste rock blocking net can be automatically adjusted, workers do not need to continuously disassemble and assemble the waste rock blocking net, the labor intensity of the workers is greatly reduced, and the waste rock blocking supporting structure is designed in a telescopic mode and can be flexibly adjusted according to the actual situation of a working face.

Description

Technical Field

[0001] The utility model relates to the technical field of inter-frame rock retaining for fully-mechanized coal mining working faces, in particular to an inter-frame rock retaining support structure for fully-mechanized coal mining working faces. Background Art

[0002] Hydraulic support is a commonly used support equipment in coal mines. It supports the roof and side walls through the extension and retraction of hydraulic cylinders. It has the characteristics of automatic control, rapid movement and strong adaptability. The inter-frame gangue support structure of the comprehensive mining working face of a coal mine is a safety facility used to prevent gangue (i.e. waste rock generated during the mining process) from falling into the working face through the gaps between hydraulic supports. Usually, a gangue net is installed to further prevent small particles of gangue or coal dust from falling into the working face, thereby reducing accidents caused by gangue particles falling into the working face, while also protecting equipment and personnel on the working face.

[0003] At present, the rock retaining net is usually fixedly installed on the top of the mine, which makes it impossible for the rock retaining net to adjust its position as the hydraulic support and scraper conveyor move. Workers are often required to constantly dismantle and install the rock retaining net, which increases the labor intensity and operation risk of the workers.

[0004] In view of the above problems, the utility model document proposes an inter-frame gangue retaining support structure for a fully mechanized mining working face in a coal mine. Utility Model Content

[0005] The utility model provides an inter-frame rock retaining support structure for a fully mechanized coal mining working face, which solves the problem in the prior art that the rock retaining net is usually fixedly installed on the top of the mine tunnel, resulting in the rock retaining net being unable to adjust its position as the hydraulic support and the scraper conveyor move, and workers are often required to continuously disassemble and install the rock retaining net, which increases the labor intensity of the workers and the risk of the operation.

[0006] The utility model provides the following technical solutions:

[0007] A gangue retaining support structure between frames for fully mechanized mining working face in a coal mine, comprising:

[0008] A hydraulic support top beam, the front end of which is slidably connected to a retractable front beam of the hydraulic support via a hydraulic rod;

[0009] The retractable rock retaining net assembly is arranged on the top beams of two adjacent hydraulic supports so that the rock retaining net can be adjusted in position as the hydraulic supports move. Workers do not need to constantly dismantle and install the rock retaining net, thereby reducing the labor intensity and operational risks of the workers.

[0010] In a possible design, the retractable rock retaining net assembly includes a main frame arranged between two adjacent hydraulic support top beams, a retractable frame is slidably installed in the front end sliding opening of the main frame, and the rock retaining net body is embedded and installed in both the main frame and the retractable frame.

[0011] In a possible design, two long-distance plug plates are symmetrically fixed on the bottom of the main frame, and long-distance plug racks for plugging and fixing the long-distance plug plates are fixed on both sides of the hydraulic support top beam to facilitate rapid disassembly and installation of the main frame.

[0012] In a possible design, two short-spacing plug plates are symmetrically fixedly provided at the front end of the bottom of the retractable frame, and short-spacing plug racks for plugging and fixing the short-spacing plug plates are fixedly provided on both sides of the retractable front beam of the hydraulic support, so as to quickly disassemble and install the retractable frame.

[0013] In a possible design, a row of steel brushes is fixedly provided on the top of the inner wall of the sliding opening to prevent debris from affecting the extension and retraction of the retractable frame.

[0014] In a possible design, the main body of the rock retaining net is made of galvanized sheet material.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0016] In the present application, when in use, between two adjacent top beams of the hydraulic support, the main frame is fixed on the top beam of the hydraulic support using a long-distance plug-in plate and a long-distance plug-in rack to ensure that the main frame is stable and in the correct position, and the retractable frame is slidably installed in the front sliding opening of the main frame, and the retractable frame is fixed on the retractable front beam of the hydraulic support using a short-distance plug-in plate and a short-distance plug-in rack;

[0017] According to the needs of the working surface, the position of the hydraulic support top beam and the retractable front beam of the hydraulic support is adjusted by the extension and retraction of the hydraulic rod, thereby driving the movement of the main frame and the retractable frame, so that the gangue retaining net is adjusted accordingly. At the same time, the debris in the sliding mouth is cleared by a steel brush to ensure that the retractable frame can be extended and retracted smoothly.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, as the hydraulic support moves, the gangue retaining net can automatically adjust its position, and workers do not need to constantly disassemble and install it, which greatly reduces the labor intensity of workers. In addition, the effective blocking of the gangue retaining net can prevent gangue from splashing, reduce the risk of injury to workers, and improve work safety.

[0020] The utility model adopts a retractable design for the middle block gangue support structure, which can be flexibly adjusted according to the actual situation of the working surface to meet the needs of different working surfaces. At the same time, the main frame and the retractable frame adopt a modular design, which is convenient for disassembly and installation, maintenance and replacement.

[0021] The utility model realizes automatic adjustment of the gangue retaining support structure by combining the telescopic design of the hydraulic support and the telescopic design of the gangue retaining net component, reduces the labor intensity and operation danger of the workers, and improves the safety and efficiency of the coal mine comprehensive mining working face. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of an inter-frame gangue retaining support structure for a fully mechanized coal mining working face provided by an embodiment of the utility model;

[0023] Figure 2 Another perspective structural schematic diagram of an inter-frame gangue retaining support structure for a fully mechanized coal mining face provided by an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a retractable rock retaining net assembly structure for a frame rock retaining support structure for a fully mechanized coal mining working face provided by an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of a hydraulic support top beam and a corresponding hydraulic support retractable front beam structure for an inter-frame gangue retaining support structure for a fully mechanized mining face in a coal mine provided by an embodiment of the utility model.

[0026] Figure numerals: 1. hydraulic support top beam; 2. hydraulic support retractable front beam; 3. main frame; 4. retractable frame; 5. long-distance plug-in plate; 6. long-distance plug-in rack; 7. short-distance plug-in plate; 8. short-distance plug-in rack; 9. sliding port; 10. steel brush; 11. gangue retaining net body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0030] Embodiment 1

[0031] Please refer to Figure 1-4 , an inter-frame rock retaining support structure, comprising:

[0032] A hydraulic support top beam 1, the front end of which is slidably connected to a hydraulic support retractable front beam 2 via a hydraulic rod;

[0033] The retractable rock-blocking net assembly is arranged on two adjacent hydraulic support top beams 1 so that the rock-blocking net can be adjusted in position as the hydraulic support moves. Workers do not need to constantly disassemble and install the rock-blocking net, thereby reducing the workers' labor intensity and work risks. The retractable rock-blocking net assembly is mainly composed of a main frame 3 and a retractable frame 4. The retractable rock-blocking net assembly includes a main frame 3 arranged between two adjacent hydraulic support top beams 1, a retractable frame 4 is slidably installed in a front end sliding opening 9 of the main frame 3, and a rock-blocking net body 11 is embedded and installed in both the main frame 3 and the retractable frame 4. The rock-blocking net body 11 is made of galvanized sheet material, has high strength and corrosion resistance, and can effectively block rock debris. According to the needs of the working surface, the position of the hydraulic support top beam 1 and the retractable front beam 2 of the hydraulic support is adjusted by retracting the hydraulic rod, thereby driving the movement of the main frame 3 and the retractable frame 4, so that the rock-blocking net is adjusted in position accordingly;

[0034] In order to facilitate the disassembly and installation of the main frame 3, two long-distance plug-ins 5 are symmetrically fixedly arranged at the bottom of the main frame 3, and long-distance plug-ins 6 matching with the long-distance plug-ins 5 are fixedly arranged on both sides of the hydraulic support top beam 1. By inserting the long-distance plug-ins 5 into the long-distance plug-ins 6, the main frame 3 can be quickly fixed on the hydraulic support top beam 1;

[0035] Similarly, two short-spacing plug plates 7 are symmetrically fixedly provided at the front end of the bottom of the telescopic frame 4, and short-spacing plug racks 8 matching with the short-spacing plug plates 7 are fixedly provided on both sides of the telescopic front beam 2 of the hydraulic support. By inserting the short-spacing plug plates 7 into the short-spacing plug racks 8, the telescopic frame 4 can be quickly fixed on the telescopic front beam 2 of the hydraulic support.

[0036] The present application can be used for inter-frame gangue retaining in fully-mechanized mining working faces in coal mines, and can also be used in other fields applicable to the present application.

[0037] Embodiment 2

[0038] Improvements based on Example 1:

[0039] A support structure for inter-frame rock retaining in a fully-mechanized coal mining working face, which is used in the field of inter-frame rock retaining in a fully-mechanized coal mining working face;

[0040] Please refer to Figure 3 In order to prevent debris from affecting the extension and retraction of the telescopic frame 4, a row of steel brushes 10 are fixedly provided on the top of the inner wall of the sliding opening 9. When the telescopic frame 4 slides in the sliding opening 9, the steel brushes 10 can effectively remove possible debris and ensure that the telescopic frame 4 can be extended and retracted smoothly.

[0041] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A gangue retaining support structure between frames for fully mechanized mining working face in coal mines, characterized in that: include: A hydraulic support top beam (1), wherein the front end of the hydraulic support top beam (1) is slidably connected to a hydraulic support telescopic front beam (2) via a hydraulic rod; The retractable rock retaining net assembly is arranged on two adjacent hydraulic support top beams (1) so that the rock retaining net can adjust its position as the hydraulic support moves.

2. The inter-frame gangue retaining support structure for a fully mechanized coal mining working face according to claim 1 is characterized in that: The retractable rock-blocking net assembly comprises a main frame (3) arranged between two adjacent hydraulic support top beams (1), a retractable frame (4) is slidably installed in a front end sliding opening (9) of the main frame (3), and a rock-blocking net body (11) is embedded and installed in both the main frame (3) and the retractable frame (4).

3. The inter-frame gangue retaining support structure for a fully mechanized coal mining working face according to claim 2 is characterized in that: Two long-distance plug plates (5) are symmetrically fixedly arranged at the bottom of the main frame (3), and long-distance plug frames (6) for plugging and fixing the long-distance plug plates (5) are fixedly arranged on both sides of the hydraulic support top beam (1), so as to quickly disassemble and install the main frame (3).

4. The inter-frame gangue retaining support structure for a fully mechanized coal mining working face according to claim 3 is characterized in that: Two short-distance plug plates (7) are symmetrically fixedly arranged at the front end of the bottom of the telescopic frame (4), and short-distance plug frames (8) for plugging and fixing the short-distance plug plates (7) are fixedly arranged on both sides of the telescopic front beam (2) of the hydraulic support, so as to quickly disassemble and install the telescopic frame (4).

5. The inter-frame gangue retaining support structure for a fully mechanized coal mining face according to claim 2, characterized in that: A row of steel brushes (10) is fixedly arranged on the top of the inner wall of the sliding opening (9) to prevent debris from affecting the telescopic frame (4) from telescoping.

6. The inter-frame gangue retaining support structure for a fully mechanized coal mining face according to claim 2, characterized in that: The rock retaining net body (11) is made of galvanized sheet material.

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