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Machining technology for gear shaft

A processing technology and gear shaft technology, applied in the field of gear shaft processing technology, can solve problems such as easy cracks and easy wear of teeth

Inactive Publication Date: 2016-06-08
重庆市巴南区仁荣机械厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing gear shafts have always been prone to cracks and the teeth are easy to wear, and the processing technology needs to be further optimized.

Method used

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Embodiment Construction

[0016] Below in conjunction with embodiment the present invention will be further described, and its operating steps are as follows:

[0017] A kind of gear shaft processing technology, this processing technology comprises the following steps:

[0018] (2) Process flow: material preparation→forging→normalizing→rough and semi-finishing→quenching and tempering→carburizing treatment→finishing and grinding→inspection and storage;

[0019] (2) Material selection: 42CrMo steel is selected;

[0020] (3) The heating temperature is 1100-1150°C, the initial forging temperature is 1150-1220°C, and the final forging temperature is >880°C;

[0021] (4) Normalizing treatment: normalizing temperature 880~1000℃;

[0022] (5) Rough and semi-finishing: gear hobbing, so that the roughness of the processed lower gear box is: Ra<3.2μm;

[0023] (6) Quenching and tempering treatment: intermediate frequency induction heating quenching, low temperature tempering, oil quenching after heating to 840...

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Abstract

The invention discloses a machining technology for a gear shaft. The machining technology is characterized by including the following technological processes of material preparing, forging, normalizing, rough machining and semi-finishing machining, thermal refining, carburizing treatment, finish machining tooth grinding and checking and storage. According to the machining technology for the gear shaft, cracks and abrasion can be reduced, and the fatigue life can be prolonged.

Description

technical field [0001] The invention belongs to the field of processing technology, in particular to a gear shaft processing technology. Background technique [0002] The rolling mill is an important machine in modern industrial production, and the gear shaft of the rolling mill is an important transmission part in the rolling mill, which mainly bears alternating loads, impact loads, shear stress and contact stress. The shaft is prone to cracks and the teeth are prone to wear. Therefore, the core of the gear shaft is required to have a certain strength and toughness, a high fatigue limit and multiple impact resistance. The surface should also have a certain hardness and wear resistance. However, the existing gear shafts always have the problems of easy cracks and easy wear of the teeth, and the processing technology needs to be further optimized. Contents of the invention [0003] In view of the deficiencies in the prior art, the purpose of the present invention is to p...

Claims

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Application Information

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IPC IPC(8): B23P15/14
Inventor 李仁荣
Owner 重庆市巴南区仁荣机械厂
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