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Manufacturing method of molding type self-lubricating knuckle bearing

A technology for joint bearings and manufacturing methods, applied in the direction of sliding contact bearings, bearings, bearing components, etc., which can solve the difficulties in processing and positioning, product coaxiality, poor symmetry, poor radial and circumferential tightness of bearings, etc. question

Active Publication Date: 2019-08-16
FUJIAN LONGXI BEARING (GROUP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of the cavity, subsequent processing and positioning are difficult, resulting in poor coaxial...

Method used

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  • Manufacturing method of molding type self-lubricating knuckle bearing
  • Manufacturing method of molding type self-lubricating knuckle bearing
  • Manufacturing method of molding type self-lubricating knuckle bearing

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Embodiment Construction

[0025] Please check figure 1 , the molded self-lubricating joint bearing includes an outer ring 1 and an inner ring 2, the outer ring 1 is provided with a through hole, the wall of the through hole is an inner spherical surface 11, the inner ring 2 has an outer spherical surface 21, and the inner ring 2 is located at In the through hole of the outer ring 1, a cavity is formed between the inner spherical surface 11 of the outer ring 1 and the outer spherical surface 21 of the inner ring 2, and a lubricating material 3 is injected into the cavity.

[0026] A method for manufacturing molded self-lubricating joint bearings, comprising:

[0027] Step 1: Process the outer ring semi-finished product 1' and the inner ring 2. The outer ring semi-finished product 1' has a through hole 11'. If the through hole 11' is a cylindrical hole, the inner ring 2 is provided with an axial through hole 22;

[0028] Step 2, put the auxiliary cushion 4 into the through hole of the outer ring semi-fi...

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PUM

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Abstract

The invention discloses a manufacturing method of a molding type self-lubricating knuckle bearing. The manufacturing method comprises the following steps that an outer ring semi-finished product and an inner ring are machined, wherein the outer ring semi-finished product is provided with a through hole; an auxiliary gasket layer is placed in the through hole, the inner ring is placed in the through hole, the auxiliary gasket layer is located between the inner ring and the outer ring semi-finished product, the outer ring semi-finished product is extruded, and the extruded auxiliary gasket layeris filled with a cavity formed between the inner ring and the outer ring semi-finished product; an outer rotative surface of outer ring semi-finished product is machined, two ends of the outer ring semi-finished product are machined to remove margin at the two ends of the outer ring semi-finished product, the auxiliary gasket layer is removed, and a lubricating material is a cavity filled betweenan outer ring and the inner ring. The manufacturing method has the following advantages that the auxiliary gasket layer is introduced, the deformation effect of the outer ring is supported in the extrusion process, so that the shape of extrusion forming shape is accurate, the size precision is high, the outer ring ellipse is small after extrusion, twisting is avoided, the gasket layer can eliminate the gap between the inner ring and the outer ring after extruded, and the coaxiality and the cavity symmetry degree of the inner ring and the outer ring in the extruded machining are easy to control, so that the radial sealing degree and the circumferential sealing degree of the bearing can be accurately controlled.

Description

technical field [0001] The invention relates to a method for manufacturing a joint bearing, in particular to a method for manufacturing a molded self-lubricating joint bearing. Background technique [0002] Molded self-lubricating layer spherical plain bearing is a kind of spherical sliding bearing. Its typical feature is that a layer of low-friction, high-load, and Grinding lubricating material, the inner ring can swing flexibly during use without lubrication. In the manufacturing process of molded self-lubricating spherical plain bearings, it is necessary to manufacture a cavity with a large gap and high precision through precision machining of the outer ring of the bearing, and then inject lubricating materials. The existing manufacturing methods of molded self-lubricating joint bearings are as described in CN201110361372.3, CN201710198042.4, and CN201310061370.1. An existing manufacturing method includes: step 1, processing the outer ring semi-finished product and the ...

Claims

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Application Information

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IPC IPC(8): F16C23/04F16C33/10
CPCF16C23/045F16C33/10
Inventor 刘文水张淮捷陈清伟庄彩虹
Owner FUJIAN LONGXI BEARING (GROUP) CO LTD
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