Coal mining roof supporting structure

Abstract

The utility model discloses a coal mining roof supporting structure, and relates to the technical field of coal mining. Comprising a hydraulic support and a bearing structural beam, the hydraulic support is hinged to the two sides of the bearing structural beam through pins, the hydraulic support comprises a base plate, a side guard beam and a hydraulic supporting column, the side guard beam and the hydraulic supporting column are fixed to the base plate, and a first kidney-shaped hole is formed in the top end of the side guard beam; the bearing structural beam comprises a left silicon manganese steel top beam, a right silicon manganese steel top beam and a hydraulic oil cylinder; according to the coal mining roof supporting structure, the hydraulic supports and the bearing structural beams are of telescopic structures, the clamping distance and the height of the supporting structure can be adjusted through cooperation of the hydraulic supporting columns and the hydraulic oil cylinders, the supporting structure can adapt to top supporting of coal mine roadways with different areas, universality is high, operation is convenient and fast, and the supporting structure is suitable for popularization and application. And the two sides of the interior of the coal mining roadway are supported through the side guard beams, burying of the roadway by soil on the two sides can be prevented, and internal workers can escape conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a roof support structure for coal mining. Background Art

[0002] Tunnel excavation is required before coal mining in order to transport ore, ventilation, drainage, pedestrians and transportation equipment. During the coal mine tunnel excavation process, due to the soft and broken coal quality, local roof collapse and spalling often occur, affecting the safety of the tunnel. Therefore, the tunnel roof needs to be supported.

[0003] The existing support equipment needs to be customized according to the size of the coal mine cave, which is difficult to adapt to coal mine caves of different sizes. It has poor versatility and only uses the support equipment to support the top roof, leaving the two sides of the tunnel without support, resulting in poor safety. Utility Model Content

[0004] The utility model provides a roof support structure for coal mining to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal mine mining roof support structure, including a hydraulic support and a bearing structure beam, the hydraulic support is hinged to the two sides of the bearing structure beam by pins; the hydraulic support includes a pad, a side guard beam and a hydraulic support, the side guard beam and the hydraulic support are respectively fixed on the pad, and the top of the side guard beam is provided with a first waist-shaped hole; the bearing structure beam includes a left silicon-manganese steel top beam, a right silicon-manganese steel top beam and a hydraulic cylinder, the right silicon-manganese steel top beam and the left silicon-manganese steel top beam are plugged into each other, and the ends of the right silicon-manganese steel top beam and the left silicon-manganese steel top beam are provided with a second waist-shaped hole, the hydraulic cylinder is fixed on the right silicon-manganese steel top beam, and its output end is hinged to the left silicon-manganese steel top beam by pins.

[0006] Furthermore, the side guard beam is fixed to the pad by high-strength bolts, and the side guard beam is hinged to the left silicon-manganese steel top beam and the right silicon-manganese steel top beam respectively.

[0007] Furthermore, a sleeve is provided on the pad, and the tail end of the hydraulic prop is fixed in the sleeve.

[0008] Furthermore, a column cap is fixedly installed on the output end of the hydraulic support, and is hinged to the left silicon-manganese steel top beam and the right silicon-manganese steel top beam through the column cap.

[0009] Furthermore, one end of the left silicon-manganese steel top beam is provided with a plug-in hole, and one end of the right silicon-manganese steel top beam is provided with a plug-in column, and is plugged together with the left silicon-manganese steel top beam through the plug-in column and the plug-in hole.

[0010] Furthermore, the hydraulic cylinder is located in the middle of the right silicon-manganese steel top beam, and support plates are installed on the left silicon-manganese steel top beam and the right silicon-manganese steel top beam.

[0011] Compared with the prior art, the utility model provides a coal mining roof support structure, which has the following beneficial effects:

[0012] The coal mine roof support structure, the hydraulic support and the bearing structure beam are all telescopic structures. Through the cooperation of hydraulic pillars and hydraulic cylinders, the clamping distance and height of the support structure can be adjusted, and it can adapt to the top support of coal mine tunnels of different areas. It has strong versatility and convenient operation. The two sides of the coal mine mining tunnel are supported by side guard beams, which can prevent the tunnel from being buried by soil on both sides, making it convenient for internal staff to escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a structural diagram of the hydraulic support of the utility model;

[0015] Figure 3 This is a structural diagram of the load-bearing structural beam of the utility model.

[0016] In the figure: 1. hydraulic support; 11. pad; 12. side guard beam; 13. hydraulic support; 14. first waist-shaped hole; 15. sleeve; 16. column cap; 2. load-bearing structure beam; 21. left silicon-manganese steel top beam; 22. right silicon-manganese steel top beam; 23. hydraulic cylinder; 24. second waist-shaped hole; 25. plug-in hole; 26. plug-in column; 27. support plate. DETAILED DESCRIPTION

[0017] 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 in 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.

[0018] See also Figure 1-Figure 3The utility model discloses a coal mining roof support structure, comprising a hydraulic support 1 and a bearing structure beam 2, wherein the hydraulic support 1 is hinged to both sides of the bearing structure beam 2 by pins, and the hydraulic support 1 and the bearing structure beam 2 are both telescopic structures, and the clamping distance and height of the support structure can be adjusted by the cooperation of the hydraulic support 13 and the hydraulic cylinder 23, so that the support structure can be adapted to the top support of coal mine tunnels of different areas, and the support structure has strong versatility and convenient operation, and the two sides of the coal mining tunnel are supported by the side guard beams 12, so that the tunnel can be blocked from being buried by the soil on both sides, so that the internal staff can escape easily;

[0019] The hydraulic support 1 includes a backing plate 11, a side guard beam 12 and a hydraulic support 13. The side guard beam 12 and the hydraulic support 13 are respectively fixed on the backing plate 11, and a first waist-shaped hole 14 is provided at the top end of the side guard beam 12.

[0020] The bearing structure beam 2 includes a left silicon-manganese steel top beam 21, a right silicon-manganese steel top beam 22 and a hydraulic cylinder 23. The right silicon-manganese steel top beam 22 and the left silicon-manganese steel top beam 21 are plugged into each other, and the ends of the right silicon-manganese steel top beam 22 and the left silicon-manganese steel top beam 21 are both provided with a second waist-shaped hole 24. The hydraulic cylinder 23 is fixed on the right silicon-manganese steel top beam 22, and its output end is hinged to the left silicon-manganese steel top beam 21 through a pin.

[0021] Specifically, the side guard beam 12 is fixed to the backing plate 11 by high-strength bolts, and the side guard beam 12 is hinged to the left silicon-manganese steel top beam 21 and the right silicon-manganese steel top beam 22 respectively.

[0022] In this embodiment, both sides of the coal mining tunnel are supported by side guard beams 12, which can prevent the tunnel from being buried by soil on both sides, making it easier for the internal workers to escape.

[0023] Specifically, a sleeve 15 is provided on the pad 11 , and the tail end of the hydraulic prop 13 is fixed in the sleeve 15 .

[0024] In this embodiment, the sleeve 15 is an assembly structure used for installing and fixing the hydraulic support 13 .

[0025] Specifically, a column cap 16 is fixedly installed at the output end of the hydraulic support 13, and is hinged to the left silicon-manganese steel top beam 21 and the right silicon-manganese steel top beam 22 through the column cap 16.

[0026] In this embodiment, the column cap 16 is a connection structure used for installation and connection between the hydraulic support 13 and the left silicon-manganese steel top beam 21 and the right silicon-manganese steel top beam 22 .

[0027] Specifically, one end of the left silicon-manganese steel top beam 21 is provided with a plug-in hole 25 , and one end of the right silicon-manganese steel top beam 22 is provided with a plug-in column 26 , and is plugged together with the left silicon-manganese steel top beam 21 through the plug-in column 26 and the plug-in hole 25 .

[0028] In this embodiment, the left silicon-manganese steel top beam 21 and the right silicon-manganese steel top beam 22 are plugged together by the cooperation of the plug-in column 26 and the plug-in hole 25 , so that the distance between the two can be adjusted by the hydraulic cylinder 23 .

[0029] Specifically, the hydraulic cylinder 23 is located in the middle of the right silicon-manganese steel top beam 22 , and a support plate 27 is installed on the left silicon-manganese steel top beam 21 and the right silicon-manganese steel top beam 22 .

[0030] In this embodiment, the main functions of the left silicon-manganese steel top beam 21 and the right silicon-manganese steel top beam 22 are to bear and transmit the rock load caused by the collapse of the top plate, and the support plate 27 can prevent some broken stones from falling.

[0031] When in use, the hydraulic support 1 and the bearing structure beam 2 are both telescopic structures. Through the cooperation of the hydraulic support 13 and the hydraulic cylinder 23, the clamping distance and height of the support structure can be adjusted, which can adapt to the top support of coal mine tunnels of different areas. It has strong versatility and convenient operation. The two sides of the coal mine mining tunnel are supported by the side guard beams 12, which can prevent the soil on both sides from burying the tunnel, making it convenient for internal staff to escape.

[0032] To sum up, the coal mine roof support structure, the hydraulic support 1 and the bearing structure beam 2 are both telescopic structures. Through the cooperation of the hydraulic support 13 and the hydraulic cylinder 23, the clamping distance and height of the support structure can be adjusted, which can adapt to the top support of coal mine tunnels of different areas. It has strong versatility and convenient operation. The two sides of the coal mine mining tunnel are supported by the side guard beams 12, which can prevent the soil on both sides from burying the tunnel, making it convenient for internal staff to escape.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mining roof support structure, comprising a hydraulic support (1) and a bearing structure beam (2), characterized in that: The hydraulic support (1) is hinged to two sides of the load-bearing structural beam (2) via pins; The hydraulic support (1) comprises a backing plate (11), a side guard beam (12) and a hydraulic support (13); the side guard beam (12) and the hydraulic support (13) are respectively fixed to the backing plate (11), and a first waist-shaped hole (14) is provided at the top end of the side guard beam (12); The bearing structure beam (2) comprises a left silicon-manganese steel top beam (21), a right silicon-manganese steel top beam (22) and a hydraulic cylinder (23); the right silicon-manganese steel top beam (22) and the left silicon-manganese steel top beam (21) are plugged together, and the ends of the right silicon-manganese steel top beam (22) and the left silicon-manganese steel top beam (21) are both provided with a second waist-shaped hole (24); the hydraulic cylinder (23) is fixed to the right silicon-manganese steel top beam (22), and its output end is hinged to the left silicon-manganese steel top beam (21) via a pin.

2. A coal mining roof support structure according to claim 1, characterized in that: The side guard beam (12) is fixed to the pad (11) by means of high-strength bolts, and the side guard beam (12) is hingedly connected to the left silicon-manganese steel top beam (21) and the right silicon-manganese steel top beam (22), respectively.

3. A coal mine roof support structure according to claim 1, characterized in that: A sleeve (15) is provided on the pad (11), and the tail end of the hydraulic support (13) is fixed in the sleeve (15).

4. A coal mining roof support structure according to claim 1, characterized in that: A column cap (16) is fixedly mounted on the output end of the hydraulic support (13), and is hingedly connected to a left silicon-manganese steel top beam (21) and a right silicon-manganese steel top beam (22) respectively through the column cap (16).

5. A coal mining roof support structure according to claim 1, characterized in that: One end of the left silicon-manganese steel top beam (21) is provided with a plug-in hole (25), and one end of the right silicon-manganese steel top beam (22) is provided with a plug-in column (26), and is plug-connected to the left silicon-manganese steel top beam (21) via the plug-in column (26) and the plug-in hole (25).

6. A coal mining roof support structure according to claim 1, characterized in that: The hydraulic cylinder (23) is located in the middle of the right silicon-manganese steel top beam (22), and a support plate (27) is installed on the left silicon-manganese steel top beam (21) and the right silicon-manganese steel top beam (22).

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