Thermal processing method for spiral bevel gear

A heat treatment method and technology of bevel gears, which are applied in the heat treatment of gears and the heat treatment of spiral bevel gears, can solve the problems of large deformation of spiral bevel gears, low yield, and large temperature difference changes of spiral bevel gears, etc., to reduce heat treatment deformation , reduce the temperature difference, eliminate the effect of processing stress
CN107034342AInactive Publication Date: 2017-08-11็‡•ๅ‡Œ้ฃž
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
็‡•ๅ‡Œ้ฃž
Publication Date
2017-08-11
Estimated Expiration
Not applicable ยท inactive patent
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Abstract

The invention discloses a thermal processing method for a spiral bevel gear. The method comprises the steps of basket loading operation, cleaning treatment before furnace charging, carburizing treatment, isothermal quenching treatment, cleaning treatment after quenching, tempering treatment, air cooling treatment, and the like. According to the thermal processing method for a spiral bevel gear, the carburizing treatment adopts a heating manner of step temperature rising and temperature preserving, therefore, temperature differences of respective parts of the spiral bevel gear can be reduced, generation of a machining stress is eliminated, and deformation of the spiral bevel gear caused by too fast heating is reduced; since the isothermal quenching treatment is adopted after the carburizing treatment, a constant oil pool temperature ensures uniform cooling of the spiral bevel gear, deformation of the spiral bevel gear is reduced, the thermal processing deformation of the spiral bevel gear is reduced, and a higher thermal processing finished product rate of the spiral bevel gear is ensured.
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Description

technical field

[0001] The invention relates to a heat treatment method for gears, in particular to a heat treatment method for spiral bevel gears, and belongs to the technical field of gear manufacturing. Background technique

[0002] Gear transmission is the most widely used form of transmission in mechanical transmission. Because of its characteristics of accurate transmission ratio, high efficiency, compact structure, reliable operation and long life, it is widely used in modern machine tools and instruments.

[0003] As the basic element of gear transmission, the gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. Among them, the spur gear has the best structure and manufacturability and is the easiest to process. Any tooth shape processing method can be used. The wheel part is processed, and for the spiral bevel gear (that is, the spiral bevel gear), because its teeth are distributed on the surface of a cone, and ...

Claims

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