Return error simulation analysis and experimental study for RV reducer with ADAMS

Rotary vector (RV) reducers are a common type of transmission device, and their transmission accuracy is crucial for many applications. Among them, the return difference (in other words, the reverse clearance of the reducer is called return error) is an important factor affecting the transmission accuracy of the reducer. The transmission return difference of the RV reducer refers to the lag of the output shaft angle when the input shaft rotates in reverse. Currently, research on geometric return difference does not consider the direction of cycloidal wheel tooth profile modification and manufacturing and installation errors on return difference. Therefore, this study establishes an accurate geometric return difference model considering manufacturing and installation errors and conducts simulation based on automatic dynamic analysis of mechanical systems (ADAMS). The dynamic return difference of the RV reducer under actual working conditions was simulated by automatic dynamic analysis of mechanical systems, and the overall hysteresis curve of the system was obtained using a transmission error test bench. The results showed that manufacturing and installation errors significantly impacted the transmission return difference of the reducer, and reducing these errors could improve transmission accuracy. This research provides an important basis for tolerance design of transmission systems and has important significance for improving the transmission accuracy of reducers.