Analysis of the coaxiality–geometric hysteresis model of a rotate vector reducer based on Ansys Adams

Abstract. When a traditional performance test device, the rotate vector (RV) reducer, is loading and unloading the reducer tested or running in different torque ranges, the coaxiality error generated by the transmission system has an important impact on the detection accuracy of a key performance parameter of the RV reducer, the hysteresis. In order to design a high-precision performance test device, a RV reducer coaxiality–geometric hysteresis model is proposed. First of all, the static simulation analysis of the transmission system of the traditional performance test device in different torque ranges is carried out using Ansys software, and the corresponding coaxiality error is obtained. Secondly, the RV reducer coaxiality–geometric hysteresis model is established by means of geometric analysis, and combined with Adams dynamics simulation software, the dynamic simulation analysis is carried out under the condition that the coaxiality of the model transmission system is in different error ranges and has no load. When the coaxiality is within the allowable error range, the hysteresis value is 0.5467 arcmin, and the result shows that the accuracy of the model is verified. At the same time, when the coaxiality exceeds the allowable range of error, it will have a great impact on the hysteresis. This result has certain theoretical significance and practical value for the analysis of the influence of the coaxiality error of the high-precision RV reducer performance detection device and the design of the adjustment mechanism.