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Large-modulus and small-tooth-number gear machining method

A processing method and large modulus technology, applied in the field of gear processing, can solve the problems of low processing precision, poor surface roughness, affecting the normal use of gears, etc., and achieve the effect of simple processing and overcoming processing difficulties.

Inactive Publication Date: 2020-05-22
衡山同远机械有限公司
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The performance is low machining accuracy and poor surface roughness, affecting the normal use of gears

Method used

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Embodiment Construction

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0027] A gear processing method with a large module and a small number of teeth, comprising the following steps:

[0028] Step 1, forging, according to the structure of the gear, the gear is decomposed into two identical half gears, and then the blank is heated to 850°C-900°C through an intermediate frequency diathermy furnace, and then the blank is forged as a whole.

[0029] Step 2, annealing the billet, and eliminating the casting stress by resonance method, controlling the deformation, and obtaining two gear blanks.

[0030] Step 3, rough turning, roughing the two semi-gear blanks on the machine tool, roughing the interface surface of the two half-gear blanks, leaving a machining allowance of 5-10mm for the interface plane of the two half-gear blanks; and then forming the whole...

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Abstract

The invention discloses a large-modulus and small-tooth-number gear machining method. The large-modulus and small-tooth-number gear machining method comprises piece forging, annealing treatment for casting stress removal, rough turning, semi finish turning, carburizing and quenching, finish turning, fine control shot blasting, flaw detection and final inspection. The large-modulus and small-tooth-number gear machining method has the advantages that large-modulus and small-tooth-number gear machining can be achieved, and the problems that machining is difficult and serious deformation is likelyto happen during machining are solved; and special design of a gear tool is not needed, complex tooth face rough and finish machining can be finished through a square shoulder disc milling tool bar tool, and machining is more simple and economical.

Description

technical field [0001] The invention relates to the technical field of gear processing, in particular to a gear processing method with a large module and a small number of teeth. Background technique [0002] Usually, gears with a modulus between 50mm-150mm and a number of teeth less than 14 are called super-large modulus gears with a small number of teeth. This type of gear is often used in industries such as coal machinery, port machinery, and marine machinery. It has strong transmission capacity and compact structure. Features. At present, the main processing methods and characteristics of super large modulus and small number of teeth gears are as follows: [0003] Fan Chengfa: The hobbing method is rarely used due to serious "undercutting" caused by gear processing with a small number of teeth, and the custom-made super large modulus hob has a long period and high price. The planing method uses the straight section of the planer edge to approach the profile of the toot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 肖科
Owner 衡山同远机械有限公司
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