Quick dismounting device and method for cotter pin

A dismantling device and cotter pin technology, which is applied to hand-held tools, manufacturing tools, etc., can solve the problems of easy damage to nuts and other parts, lack of quick disassembly methods, and difficulty in disassembly by ordinary tools, so as to improve operational stability and speed. The effect of dismantling and reducing the difficulty of operation

Active Publication Date: 2021-09-24
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the cotter pin is installed, it is tightly connected with the nut, so it is difficult to disassemble it with ordinary tools
When repairing or reinstalling the cotter pin is required, the original cotter pin is difficult to disassemble safely, and the nut and other parts are easily damaged during the disassembly process
[0004] At the same time, due to the current general-purpose tools such as needle-nose pliers and flat-nose pliers, in order not to damage the parts, alth

Method used

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  • Quick dismounting device and method for cotter pin
  • Quick dismounting device and method for cotter pin
  • Quick dismounting device and method for cotter pin

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1

[0043] A fast disassembly device, such as Figure 1 - Figure 4 As shown, a clamping member 1 including two mutually active riveting, each of which includes a clamping region and a grip region 2 connected to a clamping region, including a clamping member 3 and Support 4, clamp 3 and support 4 on the same horizontal plane;

[0044] The clamp 3 includes a clamping end 301 and a first connection end, and the first connecting end is connected to the grip region 2, and the end portion of the clamping end 301 is provided with a clamping edge 302.

[0045] The support 4 includes a curved support terminal 401 and a second connection end, and the clamping end 301 is adjacent to the arc support terminal 401 to form a connection point, the end surface of the clamp end 301 and the curved support end 401 at the connection point. The angle formed is the same as the angle of the nut 6;

[0046] One of the supports 4 is also provided with a jaw 402, and the jaws 402 are disposed ...

Example Embodiment

[0064] Example 2

[0065] A quick dismantling of an opening pin, including the following steps:

[0066] (1) Reverse bending open pin: The clamping edge 302 of the two clamps 3 in the open pin 7 is held in the tail of the opening 7 tail of the opening pin of the end surface of the nut 6, the curved shape of the support 4 The support terminal 401 supports the end surface of the other end of the nut 6, rotates according to the arc of the curved support terminal 401, reverse bending the opening pin 7 tail, and the tail of the opening pin is returned to the free opening state;

[0067] (2) Rotating opening pin: Using the opening pin 7 quick disassembly clamp holds the opening of the opening 7 tail, rotate the opening pin 4 around 90 ° around itself; rotating 90 ° mainly facilitating opening pin 7 quick removal device to open pin 7 The opening pin 7 tail is cut;

[0068] (3) Trimming open pin: Using the opening pin 7 quick disassembly device on the jaw 402 of the support 4 starts trim ...

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PUM

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Abstract

The invention discloses a quick dismounting device and method for a cotter pin, and belongs to the field of assembly. The quick dismounting device comprises two clamping parts which are movably riveted with each other. Each clamping part comprises a clamping area and a holding area connected with the clamping area, each clamping area comprises a clamping piece and a supporting piece, and the clamping pieces and the supporting pieces are located on the same horizontal plane. Each clamping piece comprises a clamping end, wherein a clamping cutting edge is arranged at the end portion of the clamping end, and each supporting piece comprises an arc-shaped supporting end. The clamping cutting edges are additionally arranged at the end portions of the clamping parts, the clamping cutting edges are partially sunken into the tail of the cotter pin under the action of clamping force, the cotter pin can be effectively clamped, deformation and dislocation of the cotter pin in the disassembling process are avoided, and the cotter pin is prevented from sliding and loosening in the clamping process. A jaw is additionally arranged and can pinch off the tail part of the opened cotter pin, so that the residual cotter pin forms a barrier-free pin, the cotter pin is conveniently pulled out, a nut and a bolt are not damaged, and the disassembly is quicker after direct pulling.

Description

technical field [0001] The invention relates to the field of assembly, in particular to a quick disassembly device and method for a cotter pin, which is mainly used in the disassembly process of cotter pins in various electromechanical equipment and systems. Background technique [0002] Cotter pin is a kind of metal hardware, commonly known as spring pin, safety pin, and also a mechanical part, mainly used for threaded connection and anti-loosening. After tightening the nut, insert the split pin into the nut groove and the hole at the end of the bolt, and pull the tail of the split pin apart to prevent the relative rotation between the nut and the bolt. [0003] For ordinary use occasions, it is enough to open the cotter pin to 60°, which can meet the anti-loosening requirements, and the installation work can be completed by using ordinary screwdrivers and wrenches. However, for fields with high reliability requirements such as aviation and aerospace equipment, it is neces...

Claims

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Application Information

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IPC IPC(8): B25B27/00
CPCB25B27/00
Inventor 何磊刘雪豪张开剑曹虎钟学敏张领伟谭与龙刘云飞王向凯
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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