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Anti-fatigue manufacturing method of spiral bevel gear

A manufacturing method and technology of bevel gears, applied in the field of gear manufacturing, can solve the problems of heavy pollution, elimination, high energy consumption, etc., and achieve the effects of improving fatigue life, reducing energy consumption, and simple material composition

Active Publication Date: 2015-05-20
天津市天瑞硬化工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0022] In addition, it should be pointed out that conventional gas carburizing and quenching is a process with high energy consumption and heavy pollution. If the above problems cannot be fundamentally solved, this process will also face the end of being eliminated.

Method used

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  • Anti-fatigue manufacturing method of spiral bevel gear
  • Anti-fatigue manufacturing method of spiral bevel gear
  • Anti-fatigue manufacturing method of spiral bevel gear

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Embodiment Construction

[0096] Below in conjunction with accompanying drawing, the 9-step operation specific embodiment of the curved bevel gear anti-fatigue manufacturing method of the present invention is described in detail:

[0097] 1. Attached figure 1 The part drawing of the given curved bevel gear is prepared, the material is 42Cr2Mo, the forging ratio should be ≥ 3, and the one-time forming die forging process is adopted.

[0098] 2. After the blank is removed from the mold, it enters the isothermal normalizing process with waste heat from forging, and its heat treatment process curve is according to the attached figure 2 Process curve implementation in Zone I. The isothermal temperature for 42Cr2Mo steel is 680 ±5 ℃, the hardness value is 180-190HB, and the average grain size is grade 6.

[0099] 3. After the rough turning of the gear blank, it is transferred to the CNC lathe for finishing turning, and all parts meet the process requirements.

[0100] 4. The tooth blank is semi-finish-c...

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Abstract

The invention relates to a novel composite surface-enhanced spiral bevel gear production process system based on a current anti-fatigue manufacturing method system and integrating induction quenching and gas nitriding. The invention aims to provide a composite surface-enhanced cyclo-palloid spiral bevel gear manufacturing method with heated precision of 4 to 6 levels and achieving the purpose that the theory contact zone meshed strength is meshed with carburizing and quenching strength. The invention aims to further provide a new spiral bevel gear production technology which can not only embody the current anti-fatigue high-end gear manufacturing method purpose, but also agree with the complete software and hardware match of a roadmap of heat treatment technology development in China.

Description

technical field [0001] The invention belongs to a gear manufacturing method, in particular to an anti-fatigue manufacturing method of a curved bevel gear. Background technique [0002] In the existing technology, due to the urgent need for long-life and high-reliability gears in high-end fields such as aviation, aerospace, automobiles, wind power, high-speed rail, and ships, people started from the reverse thinking of anti-fatigue and proposed and constructed a gear based on material technology. The core is a gear anti-fatigue manufacturing method system that uses heat treatment as a means to obtain quantitative indicators of high fatigue performance. [0003] In the prior art, although the production technology of curved bevel gears has gone through a hundred years, in actual production, especially in the field of the automobile industry, which uses the largest number of curved bevel gears, its manufacturing method still stays in the forming and manufacturing stage. The sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/14
Inventor 张元增
Owner 天津市天瑞硬化工程有限公司
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