Tool capable of disassembling pin shaft in narrow space

Abstract

The utility model discloses a tool capable of disassembling a pin shaft in a narrow space, which comprises a hydraulic nut, the hydraulic nut is connected with a hand pump through a guide pipe, the back of the hydraulic nut is provided with a driving structure used for driving the hydraulic nut to move up and down, and the driving structure comprises a screw rod and a threaded sleeve. One end of the threaded sleeve is fixedly connected with the back of the hydraulic nut, and the other end of the threaded sleeve is in threaded connection with the lead screw. The hydraulic support pin shaft dismounting device is simple in structure, convenient to operate and capable of conveniently and rapidly dismounting a pin shaft in a narrow space of a hydraulic support, avoids danger caused by traditional hammer knocking, can improve integrity of a tail beam and an inserting plate, increases top coal recovery rate, reduces labor intensity of workers, and improves working efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mining tool technology, and in particular relates to a tool that can disassemble a pin in a confined space. Background Technology

[0002] Currently, the hydraulic cylinders of the tail beam, insert plate, and side guard plate of the hydraulic support at the 4304 working face are experiencing unloading issues and cracking of the side guard plate trunnions. When replacing the hydraulic cylinders of the tail beam, side guard plate, insert plate, and side guard plate, the pins are corroded and the space is too narrow, making disassembly difficult. This results in the cylinders being unable to be replaced, causing great difficulties for the work. Utility Model Content

[0003] The purpose of this utility model is to provide a tool that can disassemble a pin in a confined space, so as to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the specific technical solution of this utility model is as follows: A tool for disassembling a pin in a confined space includes a hydraulic nut, wherein the hydraulic nut is connected to a hand pump via a conduit, and the back of the hydraulic nut is provided with a drive structure for driving its up and down movement.

[0005] Preferably, the drive structure includes a lead screw and a threaded sleeve, one end of which is fixedly connected to the back of a hydraulic nut, and the other end is threadedly connected to the lead screw.

[0006] Preferably, the threaded sleeve is a cavity structure with one end open, and the inner wall of the threaded sleeve is provided with internal threads.

[0007] Preferably, a rotating rod is provided at the end of the lead screw away from the threaded sleeve.

[0008] Preferably, the rotating rod and the lead screw have a T-shaped structure.

[0009] The tool of this utility model that can disassemble a pin in a confined space has the following advantages:

[0010] This utility model has a simple structure and is easy to operate. It can conveniently and quickly disassemble the pin shaft of the hydraulic support in the narrow space, and avoid the danger caused by the traditional hammering. It can improve the integrity of the tail beam and insert plate, increase the top coal recovery rate, reduce the labor intensity of workers, and improve work efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the connection between the hydraulic nut and the pin in this utility model.

[0014] The markings in the diagram are as follows: 1. Hydraulic nut; 2. Guide tube; 3. Hand pump; 4. Threaded sleeve; 5. Lead screw; 6. Rotary rod. Detailed Implementation

[0015] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0016] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0019] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0020] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a tool for disassembling pins in confined spaces.

[0021] like Figure 1-2 As shown, this utility model discloses a tool for disassembling a pin in a confined space, comprising a hydraulic nut 1. The hydraulic nut 1 is connected to a hand pump 3 via a conduit 2, and a drive structure for driving its up-and-down movement is provided on the back of the hydraulic nut 1. The drive structure includes a lead screw 5 and a threaded sleeve 4. One end of the threaded sleeve 4 is fixedly connected to the back of the hydraulic nut 1, and the other end is threadedly connected to the lead screw 5. By rotating the lead screw 5, the threaded sleeve 4 can move along the length of the lead screw 5 due to its threaded connection, thus allowing the threaded sleeve 4 to move along with the hydraulic nut 1, thereby disassembling the pin connected to the hydraulic nut 1. The threaded sleeve 4 is a hollow structure with one open end, and its inner wall is provided with internal threads, providing space for the threaded sleeve 4 to move on the lead screw 5. A rotating rod 6 is provided at the end of the lead screw 5 away from the threaded sleeve 4. The rotating rod 6 and the lead screw 5 form a T-shape, facilitating the rotation of the lead screw 5.

[0022] The working principle of this tool for disassembling pins in confined spaces is as follows: During use, the hand pump 3 connects the hydraulic nut 1 to the threaded connection on the pin, thus fixing the hydraulic nut 1 to the pin. Then, rotating the rotating rod 6 causes the lead screw 5 to rotate, which in turn causes the threaded sleeve 4 to move the hydraulic nut 1 along the length of the lead screw 5, allowing the hydraulic nut 1 to pull out the pin. The entire process is easy and effortless, allowing for convenient and quick disassembly of pins in confined spaces on hydraulic supports, avoiding the dangers of traditional hammering. This improves the integrity of the tail beam and insert plate, increases top coal recovery rate, reduces worker labor intensity, and improves work efficiency.

[0023] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A tool for disassembling a pin shaft in a narrow space, characterized by: The utility model provides a hydraulic nut (1) is connected with hand pressure pump (3) through the pipeline (2), and the back of hydraulic nut (1) is provided with the drive structure for driving the up and down movement thereof.

2. The tool for disassembling a pin shaft in a narrow space according to claim 1, wherein: The drive structure comprises a screw rod (5) and a threaded sleeve (4), one end of the threaded sleeve (4) is fixedly connected with the back of the hydraulic nut (1), and the other end is threadedly connected with the screw rod (5).

3. A tool for disassembling a pin shaft in a narrow space according to claim 2, characterized in that: The threaded sleeve (4) is a cavity structure with one end being open, and the inner wall of the threaded sleeve (4) is provided with internal threads.

4. The tool for disassembling a pin shaft in a narrow space according to claim 2, wherein: The screw rod (5) is provided with a rotating rod (6) at the end away from the threaded sleeve (4).

5. The tool for disassembling a pin shaft in a narrow space according to claim 4, wherein: The rotating rod (6) and the screw rod (5) are in a T-shaped structure.

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