Explosion-proof sealing structure of mining hydraulic support

Abstract

The utility model discloses an anti-explosion sealing structure for a mining hydraulic support, which belongs to the technical field of mining hydraulic supports and comprises a device body, a base is arranged in the device body, a rear connecting rod and a front connecting rod are mounted above the base, a shield beam is connected above the rear connecting rod and the front connecting rod, one end of the shield beam is connected with a top beam, and a jack is mounted on the inner wall of the shield beam. One end of the top beam is connected with the front beam, the inner wall of the top beam is connected with the stand column, the piston rod and the sealing frame are installed in the stand column, and the rear end of the stand column is connected with the connecting sleeve; the front end of the piston rod is connected with the push rod; the sealing ring is installed in the sealing frame; one end of the threaded rod is connected with the connecting ring. Efficient sealing and leakage prevention of the stand column are achieved through the sealing structure, the burst problem caused by leakage of high-pressure liquid is avoided, maintenance and replacement are convenient through the detachable connecting structure, the device adapts to complex mining working conditions, the safety and reliability of the device are improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of mining hydraulic supports, specifically relating to an explosion-proof sealing structure for mining hydraulic supports. Background Technology

[0002] Mine hydraulic supports are the core support equipment for fully mechanized coal mining faces. Through a hydraulic system, they drive multiple sets of columns and jacks to achieve dynamic support and safety protection for the mine roof, ensuring efficient and safe operation of coal mining. They mainly consist of the following structures: top beams and bases, columns, shield beams and connecting rods.

[0003] Existing mining hydraulic supports rely on the use of a column as a core support component to control the extension and retraction of the support height and initial support force. However, over prolonged use, the column is prone to hydraulic fluid leakage or bursting, affecting the operation of the device and causing considerable inconvenience to the user. Therefore, we need to upgrade and modify the existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide an explosion-proof sealing structure for a mining hydraulic support to solve the problems mentioned in the background art.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] Design an explosion-proof sealing structure for a mining hydraulic support, comprising a device body containing a base. A rear connecting rod and a front connecting rod are mounted on the base. A shield beam is connected above the rear and front connecting rods. One end of the shield beam is connected to a top beam, and a jack is installed on the inner wall of the shield beam. One end of the top beam is connected to a front beam, and a column is connected to the inner wall of the top beam. A piston rod and a sealing frame are installed inside the column, and a connecting sleeve is connected to the rear end of the column. A push rod is connected to the front end of the piston rod of the column. A sealing ring is installed inside the sealing frame. A plug rod is inserted into the push rod and the connecting sleeve. A plug hole is provided in each of the plug rod, push rod, and connecting sleeve. A threaded rod is inserted into the plug hole, and a nut is screwed onto the threaded rod. A connecting ring is connected to one end of the threaded rod.

[0007] Furthermore, multiple sets of casters are installed under the base.

[0008] Furthermore, an oil injection hole is provided inside the column, and a sealing plug is fitted inside the oil injection hole.

[0009] Furthermore, an anti-wear ring is installed inside the sealing ring, and the anti-wear ring is movably sleeved on the piston rod.

[0010] Furthermore, a sealing sleeve is connected to one end of the column, and the sealing sleeve is fixedly connected to the column.

[0011] Furthermore, the nut is provided in multiple sets, and anti-slip grooves are provided inside the nut, with multiple sets of anti-slip grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting a sealing frame, sealing ring, anti-wear ring and sealing sleeve, can provide double sealing and anti-wear treatment for the column. The sealing ring and sealing sleeve work together to enhance the sealing performance of the column, reduce the leakage of high-pressure liquid inside the column, and avoid the risk of explosion caused by high-pressure liquid leakage during use. The anti-wear ring can reduce the wear of the piston rod during movement and extend the service life of the piston rod and the column.

[0014] 2. This utility model, by setting up a plug-in rod, threaded rod, nut and connecting ring, and in conjunction with the plug-in structure of push rod and connecting sleeve, can realize the quick installation and fixation of column components, which is convenient for users to disassemble and replace later, improving maintenance efficiency. At the same time, the design of multiple sets of nuts and anti-slip grooves enhances the connection stability, avoids loosening under complex mining conditions, and further enhances the safety and reliability of the device.

[0015] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional view of the overall structure of an explosion-proof sealing structure for a mining hydraulic support according to this utility model;

[0018] Figure 2 This is a perspective view of the sealing structure of an explosion-proof sealing structure for a mining hydraulic support according to the present invention.

[0019] Figure 3 This is a cross-sectional view of the sealing structure of an explosion-proof sealing structure for a mining hydraulic support according to this utility model;

[0020] Figure 4This is an exploded view of the sealing structure of an explosion-proof sealing structure for a mining hydraulic support according to the present invention;

[0021] Figure 5 This is an exploded view of the disassembly and assembly structure of an explosion-proof sealing structure for a mining hydraulic support according to this utility model.

[0022] In the diagram: 1. Device body; 2. Base; 3. Rear connecting rod; 4. Front connecting rod; 5. Protective beam; 6. Top beam; 7. Front beam; 8. Jack; 9. Casters; 10. Column; 11. Oil injection hole; 12. Sealing plug; 13. Piston rod; 14. Sealing frame; 15. Sealing ring; 16. Anti-wear ring; 17. Push rod; 18. Sealing sleeve; 19. Connecting sleeve; 20. Insert rod; 21. Connecting ring; 22. Insert hole; 23. Threaded rod; 24. Nut; 25. Anti-slip groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1 As shown in Figure 5, this embodiment provides an explosion-proof sealing structure for a mining hydraulic support, including a device body 1. The device body 1 contains a base 2. A rear connecting rod 3 and a front connecting rod 4 are mounted above the base 2. A shield beam 5 is connected above the rear connecting rod 3 and the front connecting rod 4. One end of the shield beam 5 is connected to a top beam 6, and a jack 8 is installed on the inner wall of the shield beam 5. One end of the top beam 6 is connected to a front beam 7, and a column 10 is connected to the inner wall of the top beam 6. A piston rod 1 is installed inside the column 10. 3 and sealing frame 14 and the rear end of column 10 are connected to connecting sleeve 19. The front end of piston rod 13 of column 10 is connected to push rod 17. Sealing ring 15 is installed in sealing frame 14. Insertion rod 20 is inserted into push rod 17 and connecting sleeve 19. Insertion hole 22 is opened in insertion rod 20, push rod 17 and connecting sleeve 19. Threaded rod 23 is inserted into insertion hole 22. Nut 24 is screwed on threaded rod 23. Connecting ring 21 is connected to one end of threaded rod 23.

[0025] Preferably, a set of multiple sets of casters 9 are installed under the base 2 to facilitate the user's movement of the device, increasing its practicality and convenience. An oil injection hole 11 is provided inside the column 10, and a sealing plug 12 is fitted inside the oil injection hole 11. The oil injection hole 11 facilitates the user's oil injection into the column 10, and the sealing plug 12 seals the oil injection hole 11 to prevent oil leakage. An anti-wear ring 16 is installed inside the sealing ring 15 and is movably fitted onto the piston rod 13. The anti-wear ring 16 increases the safety of the device, reduces wear on the piston rod 13 during use, and extends the service life and working time of the piston rod 13.

[0026] Preferably, one end of the column 10 is connected to a sealing sleeve 18, which is fixedly connected to the column 10. By setting the sealing sleeve 18, the connection and closeness between the devices are increased. Multiple sets of nuts 24 are provided, and anti-slip grooves 25 are opened inside the nuts 24. Multiple sets of anti-slip grooves 25 are provided. By setting the anti-slip grooves 25, it is convenient for users to pre-tighten the nuts 24, and avoid the user from slipping or being unable to turn the nuts 24 during the process of turning them.

[0027] The working principle and process of this utility model are as follows: During use, the user installs the sealing ring 15 and anti-wear ring 16 inside the sealing frame 14, and then installs the piston rod 13 and push rod 17 inside the column 10. This seals the column 10 and controls its operation. The column 10 pushes the piston rod 13 out, causing the top beam 6 to adhere tightly to the top plate, forming initial support. The jack 8 retracts, pulling the support forward to a new position. This seals and prevents wear on the column 10, reducing the possibility of high-pressure liquid leakage and preventing the device from bursting due to high-pressure liquid leakage during use, thus extending the device's service life. When the device needs to be adjusted during use, the column 10... When disassembling and replacing the device, the user rotates the nut 24 off the threaded rod 23. After removal, the user pulls the nut out through the threaded rod 23 into the insertion hole 22. After pulling it out, the user moves the connecting sleeve 19 and the push rod 17 through the connecting ring 21 to remove the nut. After removal, the user can reinstall the new column 10. This allows for the installation and fixation of the device, facilitating the user's later disassembly and replacement, improving maintenance efficiency, and enhancing safety and reliability.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A mine hydraulic support explosion-proof sealing structure, characterized in that, Including the device body (1), the device body (1) contains the base (2), the rear link (3) and the front link (4) are installed above the base (2), the shelter beam (5) is connected above the rear link (3) and the front link (4), one end of the shelter beam (5) is connected with the roof beam (6), and the jack (8) is installed on the inner wall of the shelter beam (5), one end of the roof beam (6) is connected with the front beam (7), and the inner wall of the roof beam (6) is connected with the stand column (10), the piston rod (13) and the sealing frame (14) are installed in the stand column (10), and the rear end of the stand column (10) is connected with the connecting sleeve (19), the front end of the piston rod (13) of the stand column (10) is connected with the push rod (17), the sealing ring (15) is installed in the sealing frame (14), the push rod (17) and the connecting sleeve (19) are inserted with the plug-in rod (20), the plug-in rod (20), the push rod (17) and the connecting sleeve (19) are all provided with plug-in holes (22), the plug-in holes (22) are inserted with threaded rods (23), the threaded rods (23) are screwed with nuts (24), and one end of the threaded rods (23) is connected with connecting rings (21).

2. The explosion-proof sealing structure of a hydraulic support for mine according to claim 1, characterized in that, The mobile wheel (9) is installed below the base (2), and the mobile wheel (9) is provided with a plurality of groups.

3. The explosion-proof sealing structure of a hydraulic support for mine according to claim 1, characterized in that, The stand column (10) is provided with an oil injection hole (11), and the oil injection hole (11) is sealed and connected with a sealing plug (12).

4. The explosion-proof sealing structure of a hydraulic support for mine according to claim 1, characterized in that, The wear-resistant ring (16) is installed in the sealing ring (15), and the wear-resistant ring (16) is movably sleeved on the piston rod (13).

5. The explosion-proof sealing structure of a hydraulic support for mine according to claim 4, characterized in that, One end of the stand column (10) is connected with a sealing sleeve (18), and the sealing sleeve (18) is fixedly connected with the stand column (10).

6. The explosion-proof sealing structure of a hydraulic support for mine according to claim 1, characterized in that, The nut (24) is provided with a plurality of groups, the nut (24) is provided with an anti-skid groove (25), and the anti-skid groove (25) is provided with a plurality of groups.

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