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Machining process for rear axle driven gear

A driven gear and processing technology, which is applied in the field of rear axle driven gear processing technology, can solve the problems of complicated operations and high production costs, and achieve the effect of simplifying the heat treatment process and reducing processing costs

Inactive Publication Date: 2016-06-15
重庆江东摩托车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing bevel gear heat treatment process includes ordinary normalizing, carburizing, quenching, secondary heating, re-quenching and other steps, the operation is more complicated and the production cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The technical solution disclosed by the present invention is a rear axle driven gear processing technology, which includes the following steps: forgings—isothermal normalizing—shot blasting—roughing and finishing—coarse and fine cutting teeth—carburizing , Quenching-tempering at 180°C-shot blasting-inner hole grinding-matching gear grinding-phosphating-rust prevention-packaging.

[0007] Further, the isothermal normalizing is to first preheat the driven gear to 930-940°C and then heat it for 60 minutes; then quickly cool the bevel gear to 550-570°C by means of rapid cooling, and heat it for more than 120 minutes; Medium natural cooling or air cooling.

[0008] Further, the carburized driven gear is preheated to 850°C and then kept for 70 minutes, during which the carbon potential is maintained at 0.8; then the driven gear is preheated to 925°C, and then kept for more than 80 minutes, during which the carbon potential is maintained At 0.78~1.24; preheated to 935℃ and then ke...

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PUM

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Abstract

The invention discloses a machining process for a rear axle driven gear. The machining process comprises the following steps of forging, isothermal normalizing, shot blasting treatment, rough and finish machining, rough and finish gear cutting, carburizing and quenching, tempering at the temperature of 180 DEG C, shot blasting, inner hole grinding, lapping gear pairing, parkerising, rust preventing and packing. According to the technical scheme disclosed by the invention, by changing common normalizing into isothermal normalizing and changing the carburizing process into two-time recrystallization, the heat treatment process for the bevel gear can be greatly simplified, and meanwhile the machining cost can also be reduced.

Description

Technical field [0001] The invention relates to a process for processing a driven gear of a rear axle. Background technique [0002] The rear axle gear is a transmission part frequently used in power transmission. It needs to undergo necessary heat treatment to improve its various characteristics during the production process. The existing heat treatment process of bevel gears includes normal normalizing, carburizing, quenching, secondary heating, re-quenching and other steps, and the operations are complicated and the production cost is high. In the prior art, there is an urgent need for a heat treatment process for rear axle gears with simple operation and low cost. Summary of the invention [0003] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a rear axle driven gear processing technology, which has simple operation and low cost. [0004] In order to achieve the above objective, the presen...

Claims

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Application Information

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IPC IPC(8): B23P15/14
Inventor 吴兆平
Owner 重庆江东摩托车配件有限公司