Gear pin assembly tool convenient to operate

By designing an easy-to-operate gear pin assembly fixture, the problem of time-consuming and laborious replacement of pins between gears and drive shafts was solved, enabling convenient installation and disassembly in confined spaces.

CN223903845UActive Publication Date: 2026-02-13QINGDAO CONNIE RAIL TRANSIT EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520611385.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-13
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

In existing technologies, the process of replacing the pin between the gear and the drive shaft is time-consuming and labor-intensive, and it is difficult to complete efficiently, especially in a confined operating space.

Method used

A gear pin assembly fixture designed for easy operation includes a first fixing block and a second fixing block. Through threaded engagement and a limiting structure, the gear pin can be easily installed and removed.

Benefits of technology

The system enables convenient replacement of gear pins within a confined operating space, reducing operational difficulty and time costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gear pin assembly tool convenient to operate, and relates to the technical field of gear pin assembly, the gear pin assembly tool comprises a first fixing block, the end part of the first fixing block is provided with a connecting part, and the side part of the connecting part is provided with a first limiting groove. According to the design scheme, through the design that the second fixing block is installed on the side portion of the first fixing block in a matched mode, the first fixing block and the second fixing block are installed on the two sides of the gear respectively in the using process, and the first fixing block and the second fixing block are locked and fixed together. Then the gear pin is installed in the pin hole of the transmission shaft from one side of the first fixing block, then the ejector pin pushes the gear pin into the pin holes in the gear and the transmission shaft by locking the ejector rod, meanwhile, the old pin is ejected out through the new pin, and therefore replacement of the gear pin is completed; therefore, a user can conveniently complete the assembly operation of the gear pin in some narrow operation space, and the replacement process of the gear pin is time-saving and labor-saving.
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Description

TECHNICAL FIELD

[0001] The utility model relates to gear pin assembly technical field especially a gear pin assembly frock convenient to operation. BACKGROUND

[0002] The gear door stabilizer assembly of the motor car, high speed rail and other track vehicles adopts the gear transmission mode, and the double elastic cylindrical pins are used to fix between the gear and the transmission shaft, that is, two C-shaped pins are assembled into the pin holes of the gear and the transmission shaft.

[0003] The pin shaft between the gear and the transmission shaft needs to be replaced regularly after the vehicle drives for a period of time, and in the prior art, in order to shorten the vehicle maintenance time, the gear pin is usually replaced by the on-site construction mode, that is, without removing the gear door stabilizer assembly from the vehicle, the worker knocks out the gear pin using a punch and installs a new gear pin, this mode can shorten the vehicle maintenance time, but due to the limited installation space, it is inconvenient to operate, resulting in a time-consuming and laborious process of replacing the gear. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a gear pin assembly frock convenient to operate.

[0005] The utility model discloses a gear pin assembly frock convenient to operate, including the first fixed block, the end of first fixed block is equipped with the connecting portion, the side of connecting portion is equipped with the first limit slot, the one end of connecting portion is fixedly installed with the second fixed block away from first fixed block, the side of second fixed block is equipped with the second limit slot matched with first limit slot, the movable installation of first fixed block has the top block, the one end of first fixed block is installed through the screw cooperation with the top rod away from connecting portion, the one side of top block is installed with the thimble close to connecting portion.

[0006] Further, the installation groove is formed in the first fixed block, arc grooves are formed in the front and rear sidewalls of the installation groove, a through groove is formed in the right sidewall of the first fixed block and communicates with the arc grooves, a guide rod is fitted and installed in the arc groove, and slide grooves matched with the guide rod are formed in the front and rear sidewalls of the top block.

[0007] Further, a plurality of groups of first through holes are formed in the front and rear sidewalls of the first fixed block, the first through holes communicate with the installation groove, first connecting bolts are fitted and installed in the first through holes, and a plurality of groups of first threaded holes matched with the first connecting bolts are formed in the sidewall of the guide rod.

[0008] Further, a second threaded hole is formed in the middle of the right side wall of the first fixed block, a threaded part matched with the second threaded hole is arranged on the top rod, and a screwing part is arranged on the end of the top block away from the first fixed block.

[0009] Further, a slot matched with the top pin is formed in the middle of the side wall of the top block close to the connecting part, the top pin is inserted into the slot, a second through hole matched with the top pin is formed in the side wall of the mounting groove, and the second through hole is communicated with the first limiting slot.

[0010] Further, a limiting table is arranged on the top of the second limiting slot, a third through hole matched with the top pin is formed in the limiting table, the third through hole is coaxially arranged with the second through hole, and a plurality of groups of limiting teeth are fixedly arranged on the end of the second limiting slot away from the connecting part.

[0011] Further, a fourth through hole is formed in the side wall of the connecting part, a second connecting bolt is fittedly arranged in the fourth through hole, and a third threaded hole matched with the second connecting bolt is formed in the side wall of the second fixed block.

[0012] The beneficial effects of the utility model are that the design scheme of the utility model is provided with the second fixed block matched with the side part of the first fixed block, the first fixed block and the second fixed block are installed on the two sides of the gear respectively in use, the first fixed block and the second fixed block are locked and fixed together, then the gear pin is installed from one side of the first fixed block into the pin hole of the transmission shaft, then the locking top rod is used, the top rod pushes the top block to be close to the second fixed block, the top pin pushes the gear pin into the pin hole in the gear and the transmission shaft, the old pin is pushed out by the new pin, and thus the replacement of the gear pin is completed, so that the user can conveniently complete the assembly work of the gear pin in some narrow operation space, and the replacement process of the gear pin is time-saving and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model is further described below in combination with the drawings and examples.

[0014] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is the right view of the utility model;

[0017] Figure 4 It is the top view of the utility model;

[0018] Figure 5 It is Figure 4 The sectional structure schematic view in A-A direction;

[0019] Figure 6 isomeric view of the utility model;

[0020] Figure 7 isomeric view of the utility model second fixed block structure diagram;

[0021] Figure 8 isomeric view of the utility model assembly gear pin when the three-dimensional structure schematic diagram;

[0022] Figure 9 isomeric view of the utility model assembly gear pin when the internal structure schematic diagram.

[0023] In the figure: 1. first fixed block, 11. connecting portion, 111. first limit slot, 112. fourth through hole, 12. installation slot, 13. arc slot, 14. through slot, 15. first through hole, 16. second threaded hole, 17. second through hole, 2. second fixed block, 21. second limit slot, 22. limit platform, 23. third through hole, 24. limit tooth, 25. third threaded hole, 3. top block, 31. sliding slot, 32. insertion slot, 4. top rod, 41. threaded portion, 42. screwing portion, 5. thimble, 6. guide rod, 61. first threaded hole, 7. first connecting bolt, 8. second connecting bolt. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical scheme of the utility model, the utility model is further described below in conjunction with the drawings, obviously, the drawings described below are only one embodiment of the utility model, and for the ordinary skilled person in the art, under the premise of not paying creative labor, according to this drawing and embodiment, other embodiments obtained all belong to the protection scope of the utility model.

[0025] According to Figures 1-9As shown, a gear pin assembly tool convenient to operate, including a first fixed block 1, the end of the first fixed block 1 is provided with a connecting part 11, the side of the connecting part 11 is provided with a first limiting groove 111, the end of the connecting part 11 away from the first fixed block 1 is fixedly installed with a second fixed block 2, the side of the second fixed block 2 is provided with a second limiting groove 21 matched with the first limiting groove 111, the first fixed block 1 is movably installed with a top block 3, the end of the first fixed block 1 away from the connecting part 11 is installed with a top rod 4 through threaded cooperation, the side of the top block 3 close to the connecting part 11 is installed with a thimble 5 in cooperation, the two end side walls of the connecting part 11 are provided with fourth through holes 112, the second connecting bolt 8 is installed in the fourth through hole 112 in cooperation, the two end side walls of the second fixed block 2 are provided with third threaded holes 25 matched with the second connecting bolt 8, in use, first, the second fixed block 2 is installed on one side of the gear in cooperation, then the second fixed block 2 is installed on the other side of the gear, and the second connecting bolt 8 is installed, under the fastening of the second connecting bolt 8, the first fixed block 1 and the second fixed block 2 are fixed on the gear in cooperation, so as to facilitate the subsequent gear pin dismounting tool.

[0026] In the embodiment, the first fixed block 1 is provided with an installation groove 12, the front and rear side walls of the installation groove 12 are provided with arc-shaped grooves 13, the right side wall of the first fixed block 1 is provided with a through groove 14 communicated with the arc-shaped grooves 13, the arc-shaped grooves 13 are installed in cooperation with guide rods 6, the front and rear side walls of the top block 3 are provided with sliding grooves 31 matched with the guide rods 6, the front and rear side walls of the first fixed block 1 are provided with a plurality of groups of first through holes 15, the first through holes 15 are communicated with the installation groove 12, the first through holes 15 are installed in cooperation with first connecting bolts 7, the side wall of the guide rod 6 is provided with a plurality of groups of first threaded holes 61 matched with the first connecting bolts 7, the top block 3 is installed in cooperation in the installation groove 12, the guide rod 6 passes through the through groove 14 and is installed in cooperation in the arc-shaped groove 13, and is fixed through the first connecting bolt 7, the guide rod 6 is tightly attached to the sliding grooves 31 on the side walls of the top block 3, so as to support and guide the top block 3 through the guide rod 6.

[0027] In the embodiment, the right side wall of the first fixed block 1 is provided with a second threaded hole 16 in the middle, the top rod 4 is provided with a threaded part 41 matched with the second threaded hole 16, the end of the top block 3 away from the first fixed block 1 is provided with a screwing part 42, the top rod 4 is installed in the second threaded hole 16 through threaded cooperation, the top rod 4 is connected with a wrench or the like tool through the screwing part 42, so that the user can conveniently rotate the top rod 4.

[0028] In the embodiment, the top block 3 is provided with a slot 32 matched with the ejector pin 5 in the middle of the side wall close to the connecting part 11, the ejector pin 5 is inserted into the slot 32, the second through hole 17 matched with the ejector pin 5 is formed in the side wall of the mounting slot 12, the second through hole 17 is communicated with the first limiting slot 111, the top of the second limiting slot 21 is provided with a limiting platform 22, the third through hole 23 matched with the ejector pin 5 is formed in the limiting platform 22, the third through hole 23 is coaxially arranged with the second through hole 17, a plurality of groups of limiting teeth 24 are fixedly installed at the end of the second limiting slot 21 away from the connecting part 11, preferably, the number of the limiting teeth 24 is two groups, the two groups of limiting teeth 24 are symmetrically arranged on the two sides of the third through hole 23, the limiting teeth 24 are used for circumferentially limiting the gear, then the bottom surface of the limiting platform 22 is abutted with the end surface of the gear, so that the pin hole of the gear is aligned with the third through hole 23.

[0029] In use, first, the second fixing block 2 is installed on one side of the gear, and the third through hole 23 is aligned with the pin hole of the gear, then the first fixing block 1 is installed on the other side of the gear, and the first fixing block 1 and the second fixing block 2 are locked and fixed together through the second connecting bolt 8, then the gear pin is installed into the second through hole 17, then the ejector pin 5 is inserted into the slot 32, after the ejector pin 5 is installed, the user locks the jacking rod 4 by using a wrench, the jacking rod 4 pushes the top block 3 close to the second fixing block 2, so that the ejector pin 5 pushes the gear pin into the pin hole in the gear and the transmission shaft, and the old pin is pushed out through the new pin, so that the replacement of the gear pin is completed, therefore, the user can conveniently complete the assembly work of the gear pin in some narrow operation space, so that the replacement process of the gear pin is time-saving and labor-saving.

[0030] The above embodiment is only an exemplary embodiment of the utility model, and is not used for limiting the utility model, and the protection scope of the utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the essence and protection scope of the utility model, and the modification or equivalent replacement should also be regarded as falling within the protection scope of the utility model.

Claims

1. A pinion pin assembly tool that facilitates operation, characterized by: The utility model provides a fixing block, including first fixed block (1), the end of first fixed block (1) is equipped with connecting portion (11), the side of connecting portion (11) is equipped with first limit slot (111), the one end of connecting portion (11) away from first fixed block (1) is fixedly installed with second fixed block (2), the side of second fixed block (2) is equipped with the second limit slot (21) matched with first limit slot (111), the movable mounting of first fixed block (1) is equipped with top block (3), the one end of first fixed block (1) away from connecting portion (11) is cooperatively installed with top rod (4), the one side of top block (3) near connecting portion (11) is cooperatively installed with thimble (5).

2. A gear pin assembly tool for facilitating operation according to claim 1, wherein, The utility model provides a fixing block, including first fixed block (1), the end of first fixed block (1) is equipped with connecting portion (11), the side of connecting portion (11) is equipped with first limit slot (111), the one end of connecting portion (11) away from first fixed block (1) is fixedly installed with second fixed block (2), the side of second fixed block (2) is equipped with the second limit slot (21) matched with first limit slot (111), the movable mounting of first fixed block (1) is equipped with top block (3), the one end of first fixed block (1) away from connecting portion (11) is cooperatively installed with top rod (4), the one side of top block (3) near connecting portion (11) is cooperatively installed with thimble (5).

3. A gear pin assembly tool for facilitating operation according to claim 2, wherein, The utility model provides a fixing block, including first fixed block (1), the end of first fixed block (1) is equipped with connecting portion (11), the side of connecting portion (11) is equipped with first limit slot (111), the one end of connecting portion (11) away from first fixed block (1) is fixedly installed with second fixed block (2), the side of second fixed block (2) is equipped with the second limit slot (21) matched with first limit slot (111), the movable mounting of first fixed block (1) is equipped with top block (3), the one end of first fixed block (1) away from connecting portion (11) is cooperatively installed with top rod (4), the one side of top block (3) near connecting portion (11) is cooperatively installed with thimble (5).

4. A gear pin assembly tool for ease of operation as claimed in claim 2, wherein, The utility model provides a fixing block, including first fixed block (1), the end of first fixed block (1) is equipped with connecting portion (11), the side of connecting portion (11) is equipped with first limit slot (111), the one end of connecting portion (11) away from first fixed block (1) is fixedly installed with second fixed block (2), the side of second fixed block (2) is equipped with the second limit slot (21) matched with first limit slot (111), the movable mounting of first fixed block (1) is equipped with top block (3), the one end of first fixed block (1) away from connecting portion (11) is cooperatively installed with top rod (4), the one side of top block (3) near connecting portion (11) is cooperatively installed with thimble (5).

5. A gear pin assembly tool for facilitating operation as defined in claim 2, wherein, The utility model provides a fixing block, including first fixed block (1), the end of first fixed block (1) is equipped with connecting portion (11), the side of connecting portion (11) is equipped with first limit slot (111), the one end of connecting portion (11) away from first fixed block (1) is fixedly installed with second fixed block (2), the side of second fixed block (2) is equipped with the second limit slot (21) matched with first limit slot (111), the movable mounting of first fixed block (1) is equipped with top block (3), the one end of first fixed block (1) away from connecting portion (11) is cooperatively installed with top rod (4), the one side of top block (3) near connecting portion (11) is cooperatively installed with thimble (5).

6. A gear pin assembly tool for facilitating operation according to claim 5, wherein, The utility model provides a fixing block, including first fixed block (1), the end of first fixed block (1) is equipped with connecting portion (11), the side of connecting portion (11) is equipped with first limit slot (111), the one end of connecting portion (11) away from first fixed block (1) is fixedly installed with second fixed block (2), the side of second fixed block (2) is equipped with the second limit slot (21) matched with first limit slot (111), the movable mounting of first fixed block (1) is equipped with top block (3), the one end of first fixed block (1) away from connecting portion (11) is cooperatively installed with top rod (4), the one side of top block (3) near connecting portion (11) is cooperatively installed with thimble (5).

7. A gear pin assembly tool for facilitating operation according to any one of claims 1-6, wherein, ​