Gear micro-modification design method and wear test bench based on wear test

Abstract

The invention provides an abrasion-test-based micro profile modification design method for a gear. The method comprises the following steps of (1) drawing a gear tooth profile detection curve and a gear tooth direction detection curve before an abrasion test; (2) performing the abrasion test; (3) drawing a gear tooth profile detection curve and a gear tooth direction detection curve after the abrasion test; (4) determining a tooth profile modification mode and a tooth direction profile modification mode; (5) determining a tooth profile modification position; (6) determining a tooth profile modification amount and a tooth direction modification amount. The invention also provides an abrasion test bed. According to the method and the bed, the micro profile modification design efficiency and accuracy of the gear can be improved.

Description

technical field [0001] The invention relates to a gear manufacturing method and testing equipment, in particular to a gear microscopic modification design method and a stand for wear testing of gears. Background technique [0002] With the development of involute gear transmission technology and the gradual improvement of gear processing technology, higher requirements are put forward for the load-carrying capacity, transmission quality, vibration and noise of gears in gearboxes (such as automobile gearboxes). [0003] During the actual load transmission process of involute gears, due to the elastic deformation of the gear teeth after being stressed, the pitch changes, and the shafts, bearings, and housings (boxes) supporting the gears will also undergo elastic deformation, resulting in The meshing misalignment of the gears changes the transmission characteristics of the gears, resulting in uneven distribution of tooth surface loads along the tooth width and tooth height dir...

AI Technical Summary

Problems solved by technology

[0005] ①The design is based on the subjective experience of the engineer, and there is a lack of quantitative indicators to guide the gear modification design, so it is difficult to ensure the effectiveness of the modification design

[0006] ②Using the contact spot test to verify the microscopic modification, it is difficult to put forward quantitative optimization suggestions for the microscopic modification. Usually, it is necessary to carry out multiple cycles of design→test→optimization to achieve a good modification result, and the cycle is long

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