A tail end support for a high-extraction face machine

Abstract

This utility model belongs to the field of mining equipment technology, and in particular to a tail end support for a high-extraction working face. It includes a main body of the end hydraulic support, with a thickened support component on the top. The thickened support component includes a top shell and a baffle. The baffle rotates on the top of the end hydraulic support. In this utility model, the top shell and baffle replace the top protective plate of the end hydraulic support in contact with the roadway wall. Activation of the air supply unit controls the extension and retraction of the drive pipe, allowing the back plate and end plate to move outward from the inside of the baffle. This allows the back plate to cover and shield the roadway wall not covered by the top protective plate of the end hydraulic support from the outside. Simultaneously, the end plate rotates in front of the back plate to be placed horizontally at the bottom of the roadway and cover the bottom coal seam, thus forming a complete planar space at the bottom of the roadway for workers to step on and move around, improving the support effect of the end hydraulic support on the roadway wall.

Description

Technical Field

[0001] This utility model belongs to the field of mining equipment technology, specifically relating to a tail end support for a high-extraction working face machine. Background Technology

[0002] The end support of a high-extraction working face is a type of mining construction equipment. Supported by hydraulic pipes, it provides cover for other equipment as it passes through. Part of the end hydraulic support's protective plate rests against the roadway wall, effectively supporting the working face roadway. However, the protective plate of the end hydraulic support is close to the roadway wall, but it does not completely cover it. There is a gap between the end of the protective plate and the roadway floor, and the bottom of the roadway is also covered by coal seams. This results in insufficient horizontal space between the end hydraulic support's protective plate and the roadway wall for workers to move around, affecting the support's ability to support the roadway wall and hindering the safe movement of workers within the roadway. Utility Model Content

[0003] This utility model provides a tail end support for a high-extraction face machine, which improves the support effect and enhances construction safety.

[0004] This utility model provides the following technical solution: It includes a hydraulic support body at the end of the end, a thickened support assembly at the top of the hydraulic support body, the thickened support assembly including a top shell and a baffle shell, the baffle shell rotating on the top of the hydraulic support body via the top shell, an extension support assembly at the top of the hydraulic support body, the extension support assembly located inside the thickened support assembly, the extension support assembly including a back plate, an end plate, an air supply component, and drive pipes, the end plate rotating in front of the back plate, the number of drive pipes being four, the back plate being connected to the air supply component via the four drive pipes, the air supply component controlling the extension and retraction of the drive pipes to control the lateral movement of the back plate and the end plate on the top of the hydraulic support body.

[0005] The top shell is fixedly connected to the top of the end hydraulic support body, the baffle is snapped into the inside of the top shell, and the top of the baffle is flush with the top of the top shell.

[0006] The rear end of the baffle is fixedly connected to a rotating crossbar, which is rotatably connected to the top of the top shell.

[0007] The back plate and the end plate are both snapped together inside the top shell, the end plate is located in front of the back plate, and the bottom of the end plate has a slope.

[0008] The end plate is fixedly connected to a steering rod at its rear end, and the steering rod is rotatably connected to the front end of the back plate.

[0009] The air supply component is fixedly connected to the rear end of the top shell, and an air duct box is fixedly connected to the input end of the air supply component. The four drive tubes are fixedly fixed in a straight line to the output end of the air supply component, and the other end of the drive tubes is fixedly connected to the rear end of the back plate.

[0010] The inner wall of the baffle is provided with a clearance groove, the back plate is located below the clearance groove, the inner wall of the baffle is provided with an arc-shaped groove, the arc-shaped groove is connected to the front end of the clearance groove, and the steering rod is located inside the arc-shaped groove.

[0011] The beneficial effects of this utility model are:

[0012] This invention increases the thickness of the top of the hydraulic support body by installing a thickened support component connected to the top of the hydraulic support body. A top shell and a baffle replace the top protective plate of the hydraulic support body in contact with the roadway wall, protecting the top protective plate. An extension support component is installed inside the thickened support component, and the baffle protects the extension support component from the outside. Activation of the air supply unit controls the extension and retraction of the drive pipe, controlling the lateral movement of the back plate and end plate between the top of the hydraulic support body and the baffle. This allows the back plate and end plate to move outward from the inside of the baffle, covering and shielding the roadway wall not covered by the top protective plate of the hydraulic support body. Simultaneously, the end plate rotates in front of the back plate to be positioned horizontally at the bottom of the roadway, covering the bottom coal seam. This creates a complete planar space at the bottom of the roadway for workers to step on and move around in, improving the support effect of the hydraulic support body on the roadway wall, ensuring the safe movement of workers within the roadway, and enhancing construction safety.

[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0016] Figure 3 This is a side view of the cross-sectional structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the partially separated structure of this utility model.

[0018] In the diagram: 1. Main body of the end hydraulic support; 2. Thickened support assembly; 21. Top shell; 22. Baffle shell; 221. Clearance groove; 222. Arc groove; 23. Rotating crossbar; 3. Extended support assembly; 31. Back plate; 32. End plate; 321. Steering rod; 33. Air supply component; 331. Air venting box; 34. Drive pipe; 4. Inclined surface. Detailed Implementation

[0019] Please see Figures 1-4 The present invention provides the following technical solution: it includes an end hydraulic support body 1, the top of the end hydraulic support body 1 is provided with a thickened support component 2, the thickened support component 2 includes a top shell 21 and a baffle 22, the baffle 22 is rotated on the top of the end hydraulic support body 1 through the top shell 21, the top of the end hydraulic support body 1 is provided with an extension support component 3, the extension support component 3 is located inside the thickened support component 2, the extension support component 3 includes a back plate 31, an end plate 32, an air supply component 33 and a drive pipe 34, the end plate 32 is rotated in front of the back plate 31, the number of drive pipes 34 is four, the back plate 31 is connected to the air supply component 33 through the four drive pipes 34, the air supply component 33 controls the extension and retraction of the drive pipes 34 to control the lateral movement of the back plate 31 and the end plate 32 on the top of the end hydraulic support body 1.

[0020] In this implementation scheme: the top guard plate of the end hydraulic support body 1 is close to the roadway wall for operation control and support operation of the roadway wall. The thickened support component 2 is set on the top of the end hydraulic support body 1. The thickened support component 2 consists of a top shell 21 and a baffle 22. The top shell 21 is fixedly connected to the top of the end hydraulic support body 1. The baffle 22 is snapped into the inside of the top shell 21. A rotating crossbar 23 is fixedly connected to the rear end of the baffle 22. The rotating crossbar 23 is rotatably connected to the top of the top shell 21, so that the baffle 22 is stably rotatably connected to the top of the end hydraulic support body 1 through the top shell 21. The top of the baffle 22 is flush with the top of the top shell 21, so that the baffle 22 and the top shell 21 can stably adhere to the roadway wall, so that the baffle 22 and the top shell 21 can replace the top guard plate of the end hydraulic support body 1 to support the roadway wall.

[0021] The extension support assembly 3 is installed on the top of the end hydraulic support body 1. Located inside the thickened support assembly 2, the extension support assembly 3 consists of a back plate 31, an end plate 32, an air supply component 33, and drive pipes 34. Both the back plate 31 and the end plate 32 are snapped together inside the top shell 21. The end plate 32 is located in front of the back plate 31, and a steering rod 321 is fixedly connected to the rear end of the end plate 32. The steering rod 321 is rotatably connected to the front end of the back plate 31, ensuring the end plate 32 is stably rotatably connected to the front of the back plate 31. The air supply component 33 is fixedly connected to the rear end of the top shell 21. The number of drive pipes 34... There are four drive tubes 34, which are fixed in a straight line at the output end of the air supply component 33. The other end of the drive tube 34 is fixedly connected to the rear end of the back plate 31, so that the back plate 31 is stably connected to the air supply component 33 through the four drive tubes 34. The input end of the air supply component 33 is fixedly connected to the air priming box 331. When the air supply component 33 is activated, it guides gas into the air through the air priming box 331. The air supply component 33 guides the gas into the drive tubes 34, which can control the extension and retraction of the drive tubes 34 inside the top shell 21, so as to effectively control the lateral movement of the back plate 31 and the end plate 32 between the end hydraulic support body 1 and the baffle 22. The bottom of the end plate 32 has a slope 4. When the baffle 22 is subjected to force, it can rotate inside the top shell 21, so that the end plate 32 can effectively push the baffle 22 out from the inside of the baffle 22 and move to the outside of the baffle 22. The inner wall of the retaining shell 22 is provided with a clearance groove 221, the back plate 31 is located below the clearance groove 221, the inner wall of the retaining shell 22 is provided with an arc-shaped groove 222, the arc-shaped groove 222 connects to the front end of the clearance groove 221, and the steering rod 321 is located inside the arc-shaped groove 222, so as to block and constrain the extension support assembly 3 from the outside through the retaining shell 22, and stably position the extension support assembly 3 on the inner side of the retaining shell 22.

[0022] The thickened support component 2 is integrally connected to the top of the end hydraulic support body 1, increasing the thickness of the top of the end hydraulic support body 1. The top shell 21 and the baffle 22 cover the top plate of the end hydraulic support body 1, so that the top shell 21 and the baffle 22 can replace the top plate of the end hydraulic support body 1 to contact the roadway wall, thus protecting the top plate of the end hydraulic support body 1. The shield 22 shields and protects the extended support assembly 3 from the outside. When the air supply component 33 is activated, it can control the drive pipe 34 to extend and retract inside the shield 22, thereby controlling the lateral movement of the back plate 31 and the end plate 32 between the top of the end hydraulic support body 1 and the shield 22. This allows the back plate 31 and the end plate 32 to move outward from the inside of the shield 22, so that the back plate 31 covers and shields the roadway wall not covered by the top protective plate of the end hydraulic support body 1 from the outside. At the same time, the end plate 32 rotates in front of the back plate 31 to be placed horizontally at the bottom of the roadway and cover the bottom coal seam, so as to form a complete planar space at the bottom of the roadway for construction personnel to step on and move, thereby improving the support effect of the end hydraulic support body 1 on the roadway wall, ensuring the safe movement of construction personnel in the roadway, and improving the safety of construction.

Claims

1. A large mining height working face tail end head support, comprising an end head hydraulic support body (1), characterized in that: The end hydraulic support body (1) is provided with a thickened support assembly (2) at its top. The thickened support assembly (2) includes a top shell (21) and a baffle (22). The baffle (22) rotates on the top of the end hydraulic support body (1) via the top shell (21). The end hydraulic support body (1) is provided with an extension support assembly (3) at its top. The extension support assembly (3) is located inside the thickened support assembly (2). The extension support assembly (3) includes a back plate ( 31) End plate (32), air supply component (33) and drive pipe (34), the end plate (32) rotates in front of the back plate (31), the number of drive pipes (34) is four, the back plate (31) is connected to the air supply component (33) through the four drive pipes (34), the air supply component (33) controls the extension and retraction of the drive pipe (34) to control the back plate (31) and the end plate (32) to move laterally on the top of the end hydraulic support body (1).

2. A tail-end face end support for a high cutting face according to claim 1, characterised in that: The top shell (21) is fixedly connected to the top of the end hydraulic support body (1), and the baffle (22) is engaged with the inside of the top shell (21). The top of the baffle (22) is flush with the top of the top shell (21).

3. A tail-end face end support for a high cutting face according to claim 1, characterised in that: The rear end of the baffle (22) is fixedly connected to a rotating crossbar (23), which is rotatably connected to the top of the top shell (21).

4. A tail-end face end support for a high cutting face according to claim 1, characterised in that: The back plate (31) and the end plate (32) are both engaged and connected to the inside of the top shell (21). The end plate (32) is located in front of the back plate (31), and the bottom of the end plate (32) has a slope (4).

5. A tail-end face end support for a high cutting face according to claim 1, characterised in that: A steering rod (321) is fixedly connected to the rear end of the end plate (32), and the steering rod (321) is rotatably connected to the front end of the back plate (31).

6. A tail-end face end support for a high cutting face according to claim 1, characterised in that: The air supply component (33) is fixedly connected to the rear end of the top shell (21). The input end of the air supply component (33) is fixedly connected to the air duct box (331). The four drive tubes (34) are fixedly in a straight line at the output end of the air supply component (33). The other end of the drive tube (34) is fixedly connected to the rear end of the back plate (31).

7. A high cutting face tail end head support according to claim 5, characterised in that: The inner wall of the baffle (22) is provided with a clearance groove (221), the back plate (31) is located below the clearance groove (221), the inner wall of the baffle (22) is provided with an arc groove (222), the arc groove (222) is connected to the front end of the clearance groove (221), and the steering rod (321) is located inside the arc groove (222).

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