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Method for replacing knuckle bearing in subassembly of engine

A kind of joint bearing and engine technology, applied in sliding contact bearings and other directions, can solve the problems of inconvenient replacement work, inability to directly replace, material waste, etc., to reduce waste, eliminate adverse effects, and facilitate installation.

Inactive Publication Date: 2007-10-10
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the connection of the joint bearing in the assembly is fixed, it cannot be replaced directly. The replacement of the joint bearing can only be realized by replacing the entire joint bearing assembly.
This not only causes waste of materials, but also brings inconvenience to the replacement work.

Method used

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  • Method for replacing knuckle bearing in subassembly of engine
  • Method for replacing knuckle bearing in subassembly of engine
  • Method for replacing knuckle bearing in subassembly of engine

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Experimental program
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Embodiment Construction

[0018] Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment:

[0019] In this embodiment, the original aperture of the component after the joint bearing is taken out is D1=φ17mm, and the specific replacement steps are as follows:

[0020] 1. Take out the joint bearing with unqualified clearance, as shown in Figure 3: heat locally in the components with the joint bearing, the heating temperature is ≤200°C, use press machine tools, bushings, mandrels, micrometers and other equipment to take out Spherical joint bearing, the original aperture of the assembly after taking out the joint bearing is D1 = φ17mm, its upper and lower deviations are -0.015mm and -0.034mm respectively, the height of the assembly is 5.3mm, and its upper and lower deviations are 0mm and -0.16mm respectively ;

[0021] 2. Supplement the diameter of the assembled joint bearing in the processed component, as shown in Figure 4: Use a lathe to process th...

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PUM

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Abstract

The invention is the knuckle bearing replacing method of the engine assembly, which is to add the muff between the assembly and the knuckle bearing. The replacing processes are: take out the non-standard knuckle bearings; the diameter of the compensation processing equipping knuckle bearing is (D2); the cylinder outside diameter (D) of the processing muff is the same as the aperture (D2) of the processes knuckle bearing and ensures the tightness of 0.008-0.034mm; process the chamfer on the contacting face of the knuckle bearing and the muff; replace the knuckle bearing: at first equip the end of the muff with inside chamfer in the aperture (D2) of the assembly, secondly equip the processed the knuckle bearing in the aperture of the muff end with the outside chamfer, and ensure the equipping clearance of 0.02-0.04mm.

Description

technical field [0001] The invention belongs to the technical field of bearing replacement methods, in particular to a method for replacing joint bearings in engine assemblies. technical background [0002] The existing joint bearing components of the engine require that the joint bearing should have a gap of 0.02 to 0.04mm after closing. Since the joint bearing component rotates continuously during the working process, there must be a certain degree of gap between the rack and earrings and other components. When the wear of the gap exceeds 0.04mm, the reliability of the mechanism cannot be guaranteed. In order to ensure the reliability of the operation of the mechanism, it is necessary to keep the clearance in the acceptable range and replace the joint bearing in time. However, because the connection of the joint bearing in the assembly is fixed, it cannot be replaced directly. The replacement of the joint bearing can only be realized by replacing the entire joint bearing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C23/04
Inventor 包宏强高连会李景波李冰雁
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION