Tool for shock absorber piston

Abstract

The utility model discloses a tool for a shock absorber piston, and belongs to the technical field of piston dismounting tools. The tool for the shock absorber piston comprises a fixing disc, a hexagonal prism is arranged at the top of the fixing disc, a fixing assembly is arranged at the bottom of the fixing disc and comprises a first fixing body and a second fixing body, the first fixing body is fixedly connected with the fixing disc, and the second fixing body is movably connected with the fixing disc. The first fixing body and the second fixing body are two semi-circular ring structures which are oppositely arranged; a plurality of mounting grooves are formed in the inner side wall of the first fixing body and the inner side wall of the second fixing body, and limiting mechanisms are arranged in the mounting grooves. The first fixing body and the second fixing body are movably connected so that a piston can be fixed, and the hexagonal prism and the whole tool can be conveniently rotated through a wrench due to the arrangement of the hexagonal prism; therefore, the piston is mounted or fixed. And the limiting mechanism is arranged in the mounting groove, so that the vertical position of the piston is conveniently limited, and the piston is more convenient to disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to piston dismounting tool technical field more specifically, relate to a shock absorber piston tool. BACKGROUND

[0002] With the demand of locomotive vehicle increasing, the demand of oil pressure shock absorber for attenuating the vibration of locomotive vehicle is increasing. The locomotive vehicle oil pressure shock absorber is a vulnerable part, and the shock absorber needs to be maintained regularly, and the maintenance task is also very large. During the maintenance process, the piston with threaded coupling structure needs to be dismounted to separate the piston and the piston rod. In order to ensure good fastening performance, the threaded connection between the piston and the piston rod of most oil pressure shock absorbers uses threaded fastening glue, so that it is difficult to dismount by using ordinary dismounting method. The existing dismounting method generally damages the threaded fastening glue by using heating, baking and other methods, and then dismounts manually on the vice by using spanner. When the vice clamps the piston, manual clamping is needed, which is laborious and easy to loosen, causing dismounting inconvenience. In view of this, the utility model provides a shock absorber piston tool. SUMMARY

[0003] The utility model aims at providing a shock absorber piston tool to solve the problems in the background.

[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0005] A shock absorber piston tool, comprising a fixed disc, the top of the fixed disc is provided with a hexagonal prism, the bottom of the fixed disc is provided with a fixed assembly, the fixed assembly comprises a first fixed body and a second fixed body, the first fixed body is fixedly connected with the fixed disc, the second fixed body is movably connected with the fixed disc, the first fixed body and the second fixed body are two semicircular ring structures arranged oppositely.

[0006] The inner side wall of the first fixed body and the second fixed body is provided with a plurality of installation grooves, and a limiting mechanism is arranged in the installation groove.

[0007] Preferably, the second fixed body is provided with a screw rod penetrating through the two sides respectively, the screw rod is screw connected with the second fixed body, and the end of the screw rod is rotationally connected with the first fixed body.

[0008] Preferably, the limiting mechanism comprises a limiting block, the limiting block is slidably matched with the installation groove, a plurality of first springs are arranged at one end of the inner side of the limiting block, and the other end of the first spring is connected with the inner wall of the installation groove.

[0009] Preferably, the limiting block is provided with a sliding rod penetrating through the two sides, the end of the sliding rod is provided with a sliding block, the inner wall of the installation groove is provided with a sliding groove, and the sliding block is slidably matched with the sliding groove.

[0010] Preferably, the slide rod is in sliding fit with the limiting block, the slide rod is sleeved with a second spring on two sides of the limiting block, one end of the second spring is connected with the limiting block, and the other end of the second spring is connected with the sliding block.

[0011] Preferably, the rubber pad is bonded to one end of the inner side of the limiting block.

[0012] Compared with the prior art, the shock absorber piston tool has the beneficial effects that:

[0013] The first fixed body and the second fixed body are movably connected to fix the piston, and the six-prism is convenient to rotate by using a wrench, so that the installation or fixation of the piston is realized. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the shock absorber piston tool of the utility model installed on a piston;

[0015] Figure 2 It is a schematic view of the shock absorber piston tool of the utility model installed on a piston;

[0016] Figure 3 It is a schematic view of the second fixed body of the utility model;

[0017] Figure 4 It is a schematic view of the limiting mechanism of the utility model.

[0018] Mark number explanation: 1, fixed disc; 101, six-prism; 2, first fixed body; 3, second fixed body; 4, installation groove; 401, sliding groove; 5, limiting mechanism; 501, limiting block; 502, first spring; 503, slide rod; 504, sliding block; 505, second spring; 6, screw rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0020] Embodiment:

[0021] Please refer to Figures 1-4The utility model provides a tool for shock absorber piston, including fixed disc 1, the top of fixed disc 1 is equipped with six prism 101, the six prism 101 is equipped with the six prism 101 and whole tooling and can be rotated by spanner, the bottom of fixed disc 1 is equipped with fixed assembly, and the fixed assembly is used to clamp the shock absorber piston, and it is convenient to install or disassemble piston and use, and the fixed assembly includes first fixed body 2 and second fixed body 3, and the first fixed body 2 is fixedly connected with fixed disc 1, and the second fixed body 3 is movably connected with fixed disc 1, and the first fixed body 2 and second fixed body 3 are two half circular ring structures and are oppositely arranged, and when using, the shock absorber piston is clamped between the half circular ring structures,

[0022] The inner side wall of first fixed body 2 and second fixed body 3 is provided with a plurality of installation grooves 4, and a limiting mechanism 5 is arranged in the installation groove 4, the limiting mechanism 5 can be clamped in the groove of the piston, and the position of the piston is limited in the vertical position, and the stability of the piston during fixing is enhanced.

[0023] In the application, the second fixed body 3 is provided with a screw rod 6 penetrating through the two sides, the screw rod 6 is in threaded connection with the second fixed body 3, the end of the screw rod 6 is in rotary connection with the first fixed body 2, the distance between the first fixed body 2 and the second fixed body 3 is adjusted by rotating the screw rod 6, and the purpose of fixing the piston is realized. The outer side of the second fixed body 3 is provided with a notch at the connection position with the screw rod 6.

[0024] In the application, the limiting mechanism 5 includes a limiting block 501, the limiting block 501 is in sliding fit with the installation groove 4, the limiting block 501 can slide along the extension direction of the installation groove 4, a plurality of first springs 502 are arranged at one end of the inner side of the limiting block 501, the other end of the first spring 502 is connected with the inner wall of the installation groove 4, the first spring 502 provides a certain supporting force for the limiting block 501, and the limiting block 501 can extend into the groove of the side of the piston.

[0025] In the application, the limiting block 501 is provided with a sliding rod 503 penetrating through the two sides, the end of the sliding rod 503 is provided with a sliding block 504, the inner wall of the installation groove 4 is provided with a sliding groove 401, the sliding block 504 is in sliding fit with the sliding groove 401, the limiting block 501 is arranged on the sliding rod 503, the sliding rod 503 and the limiting block 501 can move by the sliding of the sliding block 504 along the sliding groove 401, and thus the limiting block 501 can abut against the outer wall of the piston.

[0026] In the application, the sliding rod 503 is in sliding fit with the limiting block 501, so that the vertical position of the limiting block 501 can be properly adjusted according to the position of the groove on the piston, and the limiting block 501 can accurately enter the groove of the piston or be clamped on the lower edge of the piston. The second spring 505 is sleeved on both sides of the sliding rod 503, one end of the second spring 505 is connected with the limiting block 501, and the other end of the second spring 505 is connected with the sliding block 504. Through the arrangement of the second spring 505, the limiting block 501 can be reset.

[0027] In the application, the inner side of the limiting block 501 is bonded with a rubber pad, so as to increase the friction between the limiting block 501 and the piston, and prevent the piston from being damaged.

[0028] In a possible embodiment, one end of the first fixed body 2 and the second fixed body 3 is rotatably connected, and the other end is movably connected. Two hinged seats are rotatably connected to the ends of the first fixed body 2 and the second fixed body 3, respectively. A connecting plate is arranged on the outer side of the hinged seat, and a through hole is formed in the connecting plate. The two connecting plates are fixed by the cooperation of the bolt or screw 6 and the nut. The hinged seat is arranged to adjust the two connecting plates to be in parallel, so that the bolt can pass through. When the piston is clamped, the distance between the two connecting plates can be selected by the bolt of different lengths. In this connection mode, only one bolt needs to be rotated when the piston is fixed.

[0029] In a possible embodiment, the limiting mechanism 5 can also be arranged at the bottom surface of the first fixed body 2 and the second fixed body 3, so as to clamp the limiting block 501 on the edge of the piston, which is more suitable for use when the piston is disassembled.

[0030] Working principle: when the tool is used, the end of the piston is placed between the two semicircular ring structures arranged opposite to each other of the first fixed body 2 and the second fixed body 3, and then the screw 6 is rotated to adjust the distance between the first fixed body 2 and the second fixed body 3, so as to fix the piston. When the two semicircular ring structures are close to each other, and the end of the piston is in contact with the inner wall of the fixed disc 1, the limiting block 501 enters the groove or the edge close to the lower end of the piston. Then the two semicircular ring structures continue to approach each other until the piston is clamped. The limiting block 501 is clamped in the groove or the edge of the piston under the action of the first spring 502, so as to limit the vertical position of the piston. After the piston is fixed, the wrench is clamped on the hexagonal column 101 to rotate, so as to rotate the whole tool, thereby disassembling or assembling the piston.

[0031] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A tool for a shock absorber piston comprising a fixing disc (1), characterised in that: The top of the fixed disc (1) is provided with a hexagonal prism (101), and the bottom of the fixed disc (1) is provided with a fixing assembly, the fixing assembly comprises a first fixing body (2) and a second fixing body (3), the first fixing body (2) is fixedly connected with the fixed disc (1), the second fixing body (3) is movably connected with the fixed disc (1), and the first fixing body (2) and the second fixing body (3) are two half circular ring structures arranged oppositely. The inner side walls of the first fixing body (2) and the second fixing body (3) are both provided with a plurality of mounting grooves (4), and the mounting grooves (4) are provided with limiting mechanisms (5).

2. A tool for a shock absorber piston according to claim 1, characterized in that: The second fixing body (3) is provided with a screw rod (6) penetrating through the two sides, the screw rod (6) is in threaded connection with the second fixing body (3), and the end of the screw rod (6) is in rotational connection with the first fixing body (2).

3. The tooling for a shock absorber piston of claim 1 wherein: The limiting mechanism (5) comprises a limiting block (501), the limiting block (501) is in sliding fit with the mounting groove (4), a plurality of first springs (502) are arranged at one end of the inner side of the limiting block (501), and the other end of the first spring (502) is connected with the inner wall of the mounting groove (4).

4. A tool for a shock absorber piston according to claim 3, characterized in that: The limiting block (501) is provided with a sliding rod (503) penetrating through the two sides, the end of the sliding rod (503) is provided with a sliding block (504), the inner wall of the mounting groove (4) is provided with a sliding groove (401), and the sliding block (504) is in sliding fit with the sliding groove (401).

5. A tool for a shock absorber piston according to claim 4, characterized in that: The sliding rod (503) is in sliding fit with the limiting block (501), the second spring (505) is arranged on the two sides of the limiting block (501) and covers the sliding rod (503), one end of the second spring (505) is connected with the limiting block (501), and the other end of the second spring (505) is connected with the sliding block (504).

6. A tool for a shock absorber piston according to claim 5, characterized in that: The inner side of the limiting block (501) is bonded with a rubber pad.

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