Gear modification method

A gear and tooth profile technology, applied in the field of gear modification, can solve the problems of affecting the service life of the gear, the gear can not meet the requirements of use, the deformation of the gearbox, etc., and achieve the effect of improving the bearing capacity, improving the service life and satisfying the transmission performance.

Inactive Publication Date: 2017-05-24
常州市格里森前进齿轮有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The gears in the transmission are affected by external factors, such as: poor parallelism of the two axes, deformation of the gearbox and other factors, the gears that conform to the theoretical tooth shape will not meet the requirements of use, resulting in end contact, top contact, root contact and other factors. Poor contact affects the service life of the gear

Method used

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Embodiment Construction

[0016] The present invention will now be described in detail.

[0017] A kind of gear modification method of the present invention, comprises the following steps:

[0018] Step 1: Design parameters, determine the parameters and accuracy values ​​of the gear to be modified, the parameters include the number of teeth, modulus, pressure angle, and helix angle;

[0019] Step 2: Select the tooth blank according to the design parameters and usage occasions;

[0020] Step 3: Rough machining of the tooth blank;

[0021] Step 4: Heat treatment and normalizing treatment to improve the internal structure of the material, refine and refine;

[0022] Step 5: semi-finishing the tooth blank;

[0023] Step 6: Leave a certain margin for fine grinding and carry out gear hobbing;

[0024] Step 7: heat treatment carburizing and quenching, control the depth of carburized layer and tooth surface hardness;

[0025] Step 8: Grinding process, control datum surface and hole to meet the design requ...

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Abstract

The invention provides a gear modification method. The gear modification method comprises the steps of material selection, rough machining, heat treatment normalizing treatment, semifinishing, gear hobbing, heat treatment carburizing and quenching, grinding machining, gear-grinding machining and the like. Modification is conducted through the gear modification method, the contact spot position is effectively controlled, bearing capacity is greatly improved, negative factors brought by external reasons are overcome, the service life of a gear is prolonged, and transmission performance is achieved.

Description

technical field [0001] The invention relates to the technical field of gear processing, in particular to a gear modification method. Background technique [0002] Gear transmission has the advantages of reliable operation, high transmission efficiency and long service life, and is widely used in machine transmission. At present, for gears with high transmission performance requirements, it is not enough to rely solely on manufacturing and installation accuracy, especially under heavy loads, the bending deformation of the load-bearing gears and shafts makes the theoretical tooth shape unable to meet the requirements, resulting in inconsistent contact of the gears along the tooth direction. Narrowing occurs evenly, and the acceleration gear is damaged. In order to obtain a more uniform tooth load, avoid tooth end contact, and improve the load-carrying capacity, it is necessary to modify the tooth profile of the gear, and modify the gear, tooth profile, and tooth shape accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 蒋荣坤
Owner 常州市格里森前进齿轮有限公司
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