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Gear ring machining process

A processing technology and ring gear technology, applied in the field of ring gear processing technology, can solve the problems of low tooth shape accuracy, backward heat treatment technology, and insufficient mechanical strength, etc., to reduce segregation, ensure ring gear deformation, and improve service life Effect

Inactive Publication Date: 2013-12-25
江国辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's automobile industry started relatively late, and its heat treatment technology is relatively backward. For example, the internal ring gear processed by the existing technology, or the tooth shape precision is low or the mechanical strength cannot meet the requirements of the current automobile.

Method used

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Examples

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Effect test

Embodiment Construction

[0006] The present invention is a ring gear processing technology, which includes the following steps: step 1, forging, select low-carbon alloy steel 20CrMnTiH material, reserve a margin according to the requirements of the drawing, select 20CrMnTiH as the material, forge and form; step 2, rough turning, remove Preliminary forming of the outer circle, hole, and end face with a large amount of allowance; Step 3, quenching and tempering, using a quenching temperature of 890°C-900°C, a tempering temperature of 550°C, and a hardness of 180-200HBW after quenching and tempering to eliminate the defects caused by forging organization, and make the organization uniform, which appropriately increases the hardness of the organization and reduces the internal stress of the organization; Step 4, finish turning, the outer circle, hole, end face, and seam are formed according to the technical requirements; Step 5, gear shaping, the The tooth shape of the ring gear is rough machined, leaving ...

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PUM

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Abstract

The invention discloses a gear ring machining process, which comprises the following steps of forging, rough turning, tempering, fine turning, gear shaping, fine gear broaching, carburizing, press quenching and shot blasting to obtain a finished product. According to the gear ring machining process provided by the invention, the product has the advantages of higher surface hardness, high core hardness and deep hardened layer; meanwhile, the machining cost is reduced, and the gear ring size can be ensured.

Description

technical field [0001] The invention relates to a ring gear processing technology. Background technique [0002] The automobile synchronizer ring gear is one of the important parts in the automobile transmission mechanism. Its processing quality, structure and service life directly affect the normal driving of the automobile and the personal safety of the drivers and passengers. my country's automobile industry started relatively late, and its heat treatment technology is relatively backward. For example, the inner ring gear processed by the existing technology, or the tooth shape precision is low or the mechanical strength is not up to the mark, which can no longer meet the requirements of the current automobile. Contents of the invention [0003] The invention provides a processing technology of the gear ring. The product produced by the method has high surface hardness, core hardness and deep hardened layer, reduces the processing cost and can ensure the size of the gea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
Inventor 江国辉
Owner 江国辉
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