Non-magnetic planet shaft and machining process thereof

A processing technology and technology of planetary shaft, applied in the field of non-magnetic planetary shaft and its processing technology

Active Publication Date: 2014-08-27
无锡市神力齿轮冷挤有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]The purpose of the present invention is to overcome the planetary shaft existing in the prior art, which is easily magnetized during use and generates slip resistance, which in turn causes the one-way clutch to engage and generate power low, which affects the service life of the starter, and provides a non-magnetic planetary shaft and its processing technology

Method used

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  • Non-magnetic planet shaft and machining process thereof

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0024] The shape of the non-magnetic planet shaft in the embodiment is as figure 1 As shown, it is made of austenitic stainless steel 0Cr18Ni9 material. In order to meet the technical requirements, the processing process adopted by the non-magnetic planetary shaft is: blanking→solution treatment→surface oxalate treatment→extruding splines and thickening→machining→rolling oblique splines→straightening→grinding Processing→nitrocarburizing→degreasing and cleaning.

[0025] Specifically, the processing technology of the non-magnetic planet shaft includes the following steps:

[0026] (1), blanking: the blank is a smooth cylindrical body, and the material is austenitic stainless steel 0Cr18Ni9, which is non-magnetic and has high plasticity and toughness;

[0027] (2) Solution treatment: heat the blank to 1000~1200℃, keep it warm for 15~20 minutes, and then quick...

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Abstract

The invention relates to a non-magnetic planet shaft and a machining process thereof. The non-magnetic planet shaft is made of a stainless steel 0Cr18Ni9 material. The machining process of the non-magnetic planet shaft includes feeding, solution treatment, surface oxalate treatment, spline extruding and heading, machining, inclined spline rolling, straightening, grinding, nitrocarburizing and deoiling washing. The planet shaft manufactured through the process is table and even in organization, not easy to magnetize even in long-time use, flexible in sliding and capable of meeting the requirement for bending strength.

Description

technical field [0001] The invention relates to a planetary shaft and its processing technology, in particular to a non-magnetic planetary shaft and its processing technology. Background technique [0002] After decades of development, my country's auto industry has made great progress. A starter with a new structure has appeared. The starter does not have a shift fork and a slip ring. The one-way clutch moves forward by the rotation inertia of the planetary shaft, changing from forced meshing to flexible meshing. However, the original planetary shaft material is made of 45 steel or low-carbon alloy steel (20CrMnTi) is found to be easily magnetized during use to generate slip resistance, and the engagement efficiency of the one-way clutch is low, resulting in low life of the starter. [0003] The traditional processing process of the planetary shaft is: forging billet (45 steel) → normalizing or quenching and tempering → machining (the spline part adopts rolling process → h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00C21D9/28C23C8/32F16H57/08
CPCB23P15/00C21D9/28C23C8/32C23F17/00F16H57/08
Inventor 王维涛王建江
Owner 无锡市神力齿轮冷挤有限公司
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