关键词: RV 减速器, 行星齿轮副, 接触疲劳损伤, 齿轮修形

Abstract: RV reducer is one of the core components of industrial robots, and its stiffness retention and durability were directly related to the continuous accuracy and service life of robots. It was not the planetary gear pair that restricts the life of the RV reducer, but through a series of durability tests, it was found that the contact fatigue damage particles generated by the planetary gear pair have a rolling strengthening damage on the crank shaft contact fatigue and the cycloidal contact pair, so we had to face such problems and find solutions. This article takes the principle of contact fatigue damage in the planetary gear pair of RV reducer as the background, analyzes the causes, proposes gear modification and improvement measures, and forms a closed loop from problem to improvement, providing reference experience for the design of planetary gear pairs in subsequent series of RV reducers.

Key words: RV reducer, planetary gear pair, contact fatigue damage, gear reshaping