Method for improving performance of bearing bush steel backing

A technology of bearing bush and steel back, applied in the field of bearing bush steel back, can solve the problems of low strength of bearing bush steel back, easy deformation of bearing bush steel back, affecting normal use, etc., so as to improve deformation stability, reduce dimensional change, and improve stability Effect

Inactive Publication Date: 2019-03-01
MIBA PRECISION COMPONENTS CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, although the existing technology can improve the lubrication situation, the strength of the steel back of the bearing pad is low, which causes the steel back of the bearing pad to be easily deformed during assembly and operation, which affects the normal use. Therefore, we propose an improved bearing pad steel back method of back performance

Method used

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  • Method for improving performance of bearing bush steel backing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Rolling treatment: the plate-shaped bearing material is passed through the gap between a pair of rotating rolls, and the cross-section of the plate-shaped bearing material is reduced due to the compression of the rolls; bending shaping: the rolled plate is processed by a press brake The raw material of the bearing pad is bent to form a semicircle; low-temperature heat treatment: put the raw material of the plate-shaped bearing pad after bending and shaping into a heat treatment machine for heating, and then perform size processing and coating treatment after heating to obtain the finished bearing pad, heat treatment The temperature is 200℃, the holding time is 120min, the heating rate of heat treatment is 1℃ / min, and the heat treatment machine is heated by a heating coil wound internally into a ring or other shape. The steel back of the bearing bush needs to be coated before coating treatment. Sand blasting, coating treatment includes primary spraying and secondary spray...

Embodiment 2

[0025] Rolling treatment: the plate-shaped bearing material is passed through the gap between a pair of rotating rolls, and the cross-section of the plate-shaped bearing material is reduced due to the compression of the rolls; bending shaping: the rolled plate is processed by a press brake The raw material of the bearing pad is bent to form a semicircle; low-temperature heat treatment: put the raw material of the plate-shaped bearing pad after bending and shaping into a heat treatment machine for heating, and then perform size processing and coating treatment after heating to obtain the finished bearing pad, heat treatment The temperature is 220°C, the holding time is 70min, the heating rate of heat treatment is 2°C / min, and the heat treatment machine is heated by a heating coil wound internally into a ring or other shape. The steel back of the bearing bush needs to be coated before coating treatment. Sand blasting, coating treatment includes primary spraying and secondary spra...

Embodiment 3

[0027] Rolling treatment: the plate-shaped bearing material is passed through the gap between a pair of rotating rolls, and the cross-section of the plate-shaped bearing material is reduced due to the compression of the rolls; bending shaping: the rolled plate is processed by a press brake The raw material of the bearing pad is bent to form a semicircle; low-temperature heat treatment: put the raw material of the plate-shaped bearing pad after bending and shaping into a heat treatment machine for heating, and then perform size processing and coating treatment after heating to obtain the finished bearing pad, heat treatment The temperature is 250°C, the holding time is 90min, the heating rate of heat treatment is 3°C / min, and the heat treatment machine is heated by a heating coil wound internally into a ring or other shape. The steel back of the bearing bush needs to be coated before coating treatment. Sand blasting, coating treatment includes primary spraying and secondary spra...

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Abstract

The invention discloses a method for improving performance of a bearing bush steel backing. The method comprises the following steps that S1, rolling treatment is conducted, specifically, a platy bearing bush raw material passes through a gap between a pair of rotating rollers, the platy bearing bush raw material is compressed by the rollers, and thus the section of the platy bearing bush raw material is reduced; S2, press-bending shaping is conducted, specifically, the rolled platy bearing bush raw material is bent in a pressed mode through a bending press, and thus the rolled platy bearing bush raw material is in a semicircular shape; and S3, low-temperature heat treatment is conducted, specifically, the platy bearing bush raw material subjected to press-bending shaping is put into a heat treatment machine to be heated, after heating, dimensional processing and coating treatment are conducted, and thus a finished bearing bush is obtained. According to the method for improving the performance of the bearing bush steel backing, the hardness of the bearing bush steel backing can be adjusted and improved, the deformation stability of the bearing bush is improved, by controlling the hardness of the steel backing, the design requirement is met, the dimensional change amount of the bearing bush is decreased, the stability of assembly and operation is improved, and the problem that the strength of an existing bearing bush steel backing is low, consequently, the bearing bush steel backing is prone to deforming in the assembly and operation processes, and normal use is affected issolved.

Description

technical field [0001] The invention relates to the technical field of bearing pad steel backs, in particular to a method for improving the performance of bearing pad steel backs. Background technique [0002] The bearing pad is the contact part of the sliding bearing and the journal. The shape is a tile-like semi-cylindrical surface, which is very smooth. It is generally made of wear-resistant materials such as bronze and anti-friction alloy. In special cases, it can be made of wood, engineering plastics or rubber. production. There are two types of bearing pads: integral type and split type. The integral type bearing pad is usually called a shaft sleeve. There are two types of integral bearing bushes with or without oil grooves and with oil grooves. The bearing bush and the journal adopt a clearance fit, and generally do not rotate with the shaft. [0003] The invention with the patent number CN105570305A discloses a bearing pad and a processing method of the bearing pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/40C21D8/00
CPCC21D8/005C21D9/40
Inventor 贾新超
Owner MIBA PRECISION COMPONENTS CHINA
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