Method for replacing knuckle bearing in subassembly of engine
A technology of joint bearings and engines, which is applied in the direction of sliding contact bearings, etc., can solve the problems of inability to directly replace, waste materials, and inconvenient replacement work, and achieve the effects of eliminating adverse effects, reducing waste, and facilitating installation
Inactive Publication Date: 2005-10-26
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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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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[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, such as image 3 Shown: Heating locally in the components with joint bearings, heating temperature ≤ 200 ℃, using equipment such as press machine tools, bushings, mandrels and micrometers to take out the joint bearings, the original aperture of the components after taking out the joint bearings D1 = Φ17mm, the upper and lower deviations are -0.015mm and -0.034mm respectively, the height of the component is 5.3mm, and the upper and lower deviations are 0mm and -0.16mm respectively;
[0021] 2. Supplement the diameter of the assembled joint bearing in the processing component, such as Figure 4 Shown: Use a lathe to process the...
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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 components. 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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Inventor 包宏强高连会李景波李冰雁
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION