Method for measuring and evaluating flexible gear in working state based on rigid gear parameters

Abstract

The invention relates to a method for measuring and evaluating a flexible gear in a working state based on a rigid gear parameter. The method comprises the following steps: 1, calculating to obtain ameshing region angle parameter alpha and the number 4N-2 of gear tooth pairs participating in meshing; 2, taking basic parameters of the rigid gear as detection parameters of the flexible gear, and taking a designed tooth form of the rigid gear as a theoretical tooth form of the flexible gear; 3, measuring actual coordinate points of bilateral tooth shapes of different gear teeth of the evaluatedflexible gear in different working states; meanwhile, the performance of the flexible gear is evaluated; 4, measuring an i-th gear tooth form actual coordinate point and a tooth form error of the i-thgear tooth form on the flexible gear, wherein the angle difference between the tooth form actual coordinate point and the length diameter of the wave generator is the position delta; (3), when deltais greater than -alpha and less than alpha, the i-th gear tooth is in a meshing working state, otherwise, the i-th gear tooth is in a non-meshing state; 5, repeating the step 4; and 6, comprehensivelyevaluating the quality of the flexible gear. The method provided by the invention aims to reflect a comprehensive error, and not only comprises design and processing of a tooth form error, but also comprises influence on a wave generator; the problem that the performance of the flexible gear cannot be measured and evaluated in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of harmonic gear transmission detection, in particular to a method for measuring and evaluating a flexible spline under a working state based on rigid spline parameters. Background technique [0002] The harmonic gear reducer mainly includes a rigid wheel with internal teeth, a flexible spline with external teeth that can produce radial elastic deformation during operation, and an elliptical wave generator installed inside the flexible spline. The harmonic gear reducer has many advantages such as simple structure, small size, light weight and high transmission efficiency. In the application field of harmonic transmission, especially in the field of industrial robots, the requirements for the accuracy and space size of harmonic gear transmission are extremely strict. Shape design, processing, flexspline deformation and stress research, etc. [0003] Among them, the tooth shape of the flexspline has a great ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a flexible spline measurement and evaluation method based on rigid spline parameters under working conditions to solve the problem that the performance of the flexible spline cannot be measured and evaluated in the prior art

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