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Processing technology of bearing

A technology of bearing processing and technology, which is applied in the field of bearing processing technology, can solve the problems of low toughness, easy fracture, rib fracture, etc., and achieve the effect of improving efficiency and good corrosion resistance

Inactive Publication Date: 2018-05-25
贵州弘润实业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, under the action of a large axial load, the problem of rib fracture is difficult to deal with, and the toughness is relatively small, so it is easier to break when subjected to axial force

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A bearing processing technology includes forging, turning, carburizing and heat treatment.

[0025] Described turning process comprises the steps:

[0026] A. Blanking: The original blank for blanking is a tubular bar. Cut the original blank according to the length of the bearing on the sawing machine to obtain the primary blank of the bearing. The outer diameter of the original blank is 0.1 larger than the outer diameter of the final product of the bearing. mm-0.2mm, the inner diameter of the original blank is 0.1mm-0.2mm smaller than the inner diameter of the final bearing product;

[0027] B. End face chamfering and grinding: the two end faces of the bearing are chamfered, and the two end faces of the bearing are ground on a surface grinder;

[0028] C. Punching: There is an oil injection hole on the side wall of the bearing, the bearing is fixed on the punching machine, and the oil injection hole is manufactured by stamping;

[0029] D. Oil injection hole chamferi...

Embodiment 2

[0041]A bearing processing technology includes forging, turning, carburizing and heat treatment.

[0042] The bearing material is 40Cr 1 Ni 2 A stainless steel.

[0043] Liquid throwing treatment is also carried out after the heat treatment.

[0044] The liquid polishing treatment process is to place the inner ring and outer ring of the stainless steel bearing in the centrifugal drum, and then add a certain amount of water by adding high-frequency ceramic balls and polishing liquid; the weight ratio in sequence is 15:30 :6:45, temperature 60°C.

[0045] Passivation treatment is also carried out after the liquid throwing treatment, the passivation solution is to add 2g calcium dichromate powder in 100ml of hydrochloric acid, stir and dissolve.

[0046] The heat treatment includes quenching and tempering. Quenching is heating to 800°C, holding for 30 minutes and quenching in cooling oil; tempering is heating to 250°C, holding for 6 hours, and cooling naturally.

[0047] Tur...

Embodiment 3

[0049] A bearing processing technology includes forging, turning, carburizing and heat treatment.

[0050] The bearing material is 40Cr 1 Ni 2 A stainless steel.

[0051] Liquid throwing treatment is also carried out after the heat treatment.

[0052] The liquid polishing treatment process is to place the inner ring and outer ring of the stainless steel bearing in the centrifugal drum, and then add a certain amount of water by adding high-frequency ceramic balls and polishing liquid; the weight ratio in sequence is 15:30 :6:45, temperature 80°C.

[0053] Passivation treatment is also carried out after the liquid throwing treatment, the passivation solution is to add 2g calcium dichromate powder in 100ml of hydrochloric acid, stir and dissolve.

[0054] The heat treatment includes quenching and tempering. Quenching is heating to 1000°C, holding for 30 minutes and quenching in cooling oil; tempering is heating to 300°C, holding for 6 hours, and cooling naturally.

[0055] T...

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Abstract

The processing method of a bearing comprises (1) a step of preparation, and tempering a inner ring and an outer ring of the bearing; (2) a step of processing and forming the inner ring and outer ringof the bearing; (3) a step of fixing the inner ring and outer ring of the bearing by a clamping hoop; (4) piercing a through hole at the outer ring of the bearing in a axial direction; (5) a step of grinding and machining towards the inner and outer ring of the bearing; (6) adopting wire cutting to cut out a clamping block , and the cut clamping block enabling the through hole to be divided into afirst through hole and a second through hole which is arranged at both sides of a fracture of the outer ring of the bearing; (7) installing a ball bearing at a position between the outer ring of thebearing and the inner ring of the bearing; and (8) loading the clamping block into the fracture, and inserting a bolt into the first through hole and the second through hole for interference fit. Tempering towards the inner ring and outer ring of the bearing is carried out before the process, so that the ductility and toughness of the bearing are enhanced. The bearing has high bearing capacity, the service life compared with the existing full ball bearing is greatly prolonged, and the safety is high.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a bearing processing technology. Background technique [0002] Bearing is an important part of contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient (friction coefficient) during its movement, and ensure its rotation accuracy (accuracy). According to the different friction properties of moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings. Among them, the rolling bearing has been standardized and serialized, but compared with the sliding bearing, its radial dimension, vibration and noise are larger, and the price is also higher. Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling element and cage. Strictly speaking, they are composed of six parts: outer ring, inner ring, rolling element, cage, seal, and lubricating o...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/003
Inventor 罗来元
Owner 贵州弘润实业发展有限公司
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