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Mounting tool and method for double-lug interference fit bushing

A technology of interference fit and tool installation, applied in the direction of manufacturing tools, hand-held tools, etc., can solve the problems of low coaxiality, high bushing damage rate, low installation accuracy of double-ear bushings, etc., to improve assembly efficiency , The tooling structure is simple and practical, and the effect of fast positioning

Inactive Publication Date: 2021-03-12
JIANGXI CHANGHE AVIATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention: to solve the technical problems of low installation accuracy, low coaxiality and high bushing damage rate of double lug bushings

Method used

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  • Mounting tool and method for double-lug interference fit bushing
  • Mounting tool and method for double-lug interference fit bushing
  • Mounting tool and method for double-lug interference fit bushing

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Example 1, see figure 1 , 2, 4, 5, 7, provide a kind of installation tool of double lug interference fit bushing, described bushing has flanging at one end, and flanging is positioned at double lug inner side;

[0034] The installation tool includes a first shaft, a second shaft, a support sleeve and a block;

[0035] The first shaft is a stepped shaft, the outer diameter of the thick shaft of the stepped shaft is greater than the inner diameter of the bushing hole, and the thin shaft of the stepped shaft is matched with the bushing hole, and the gap is less than 0.03mm;

[0036] The second shaft is in clearance fit with the bush hole, and the clearance is less than 0.03mm;

[0037] The outer diameter of the support sleeve is in clearance fit with the lug hole, and the inner diameter of the support sleeve is the same as the inner diameter of the bush;

[0038] The block is detachably connected to the second shaft, and can be fixed integrally with the second shaft.

...

Embodiment 2

[0042] Embodiment 2, referring to Fig. X-xx, provides an installation tool for a two-lug interference-fit bushing, one end of the bushing has a flanging, and the flanging is located inside the two-lug;

[0043] The installation tool includes a first shaft, a second shaft, a support sleeve and a block;

[0044] The first shaft is a stepped shaft, the outer diameter of the thick shaft of the stepped shaft is greater than the inner diameter of the bushing hole, and the thin shaft of the stepped shaft is matched with the bushing hole, and the gap is less than 0.03mm;

[0045] The second shaft is in clearance fit with the bush hole, and the clearance is less than 0.03mm;

[0046] The outer diameter of the support sleeve is in clearance fit with the lug hole, and the inner diameter of the support sleeve is the same as the inner diameter of the bush;

[0047] The block is detachably connected to the second shaft, and can be fixed integrally with the second shaft.

[0048] The secon...

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Abstract

The invention relates to an mounting method for a double-lug interference fit bushing. One end of the bushing is provided with a flange, and the flange is located on the inner side of a double-lug; and the mounting tool comprises a first shaft, a second shaft, a supporting sleeve and a clamping block. The platform has the beneficial effects.

Description

technical field [0001] The invention relates to the technical field of lug bush assembly, and specifically provides an installation tool and method for a double lug interference fit bush. Background technique [0002] In the prior art, an interference-fit bushing is often involved in assembling the lug rocker arm. This kind of part is a double-lug rocker arm. There are two holes in the part that need to be equipped with bushings. The bushing and the hole are interference fit. When assembling the bushing, in the prior art, the bushing is generally cooled in liquid nitrogen by temperature difference coordination, then the bushing is put into the hole, and the bushing is pressed into the hole with a short shaft. At this time, although the bushing The outer diameter of the sleeve is reduced, but there is still a certain amount of interference. If the bushing is not aligned with the hole coaxially, it will cause the bushing to cut off a layer of the inner side of the hole and be...

Claims

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Application Information

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IPC IPC(8): B25B27/02
CPCB25B27/02
Inventor 邵继超熊曦耀苏贵鸿汪小军黄康华聂发兴汪广平王鹏徐志鹏汤明军罗秋妹
Owner JIANGXI CHANGHE AVIATION IND