Synchronizer toothed-ring abrasion blasting technique

A synchronizer gear ring, sandblasting technology, applied in the direction of gear teeth, components with teeth, belts/chains/gears, etc., can solve the problems of multiple burrs and poor wear resistance of threads, and achieve no raw material loss and service life. The effect of long and improved lubrication conditions

Active Publication Date: 2010-10-06
WUHAN KYOWA SYNCHRONIZER RING
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AI Technical Summary

Problems solved by technology

[0002] At present, the automotive synchronizer gear rings produced in China are all produced by forging and turning processes. After the turning is completed, there is no further treatment, and the processed product has more burrs on the thread surface;
[0003] At the same time, because the synchronizer ring plays the role of gear shift synchronization in the automobile transmission, it needs to be in contact with the gear cone and run in frequently, so it also has high requirements for its wear resistance, and the synchronizer ring is mainly Compared with steel parts, copper alloy materials have poor wear resistance. Before the base material is improved, there is no good way to improve its wear resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] A sandblasting process for a synchronizer ring, comprising:

[0012] 1) Customized turntable wet sand blasting machine from Dongguan Dongcheng Baitong Hardware Machinery Factory, model: BT-ZP-1212W-4;

[0013] 2) Clamp the workpiece (gear ring product) to the fixture;

[0014] 3) Select #180 quartz sand, initially set the sandblasting pressure: 50-290Kpa, set the sandblasting distance: 150-200mm, set the sandblasting time: 2-4 seconds, set the product speed: 30-50RPM;

[0015] 4) Carry out sandblasting test on the gear ring according to the above parameters;

[0016] 5) Detect the surface condition and roughness of the sandblasting parts, and carry out the wear resistance test on the sandblasting parts, which meets the target requirements;

[0017] 6) According to the above test data, the technological parameters of the sandblasting of the gear ring are summarized as follows: quartz sand #180, sandblasting pressure: 290Kpa, set sandblasting distance: 150mm, set sandbl...

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PUM

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Abstract

A sandblast technology for alligatoring rings of a synchronizer is used for performing sandblast to processed alligatoring rings, and has the advantages that tiny burrs on the surfaces of workpieces can be removed, thereby smoothing the surfaces of the workpieces, eliminating the harm brought by the burrs, and improving the grade of the workpieces; tiny and even concave and convex surfaces are generated on the surfaces of spare parts for storing lubricating oil, thereby improving the lubricating condition and reducing the noise; and the fatigue value and the wear resistance of the spare partsare enhanced remarkably.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a sandblasting process for a synchronizer gear ring. Background technique [0002] At present, the automotive synchronizer gear rings produced in China are all produced by forging and turning processes. After the turning is completed, there is no further treatment, and the processed product has more burrs on the thread surface; [0003] At the same time, because the synchronizer ring plays the role of gear shift synchronization in the automobile transmission, it needs to be in contact with the gear cone and run in frequently, so it also has high requirements for its wear resistance, and the synchronizer ring is mainly Compared with steel parts, copper alloy materials have poor wear resistance. Before the base material is improved, there is no good way to improve its wear resistance. Contents of the invention [0004] The purpose of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23F19/10B24C1/04
Inventor 朱元华张诚王小刚何克奇韩惠齐
Owner WUHAN KYOWA SYNCHRONIZER RING
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