Optimized Design of RV Reducer for Improved Load Capacity
As the core component of industrial robots,the RV reducer is faced with practical working conditions such as overload and high-speed operation,and it is easy to encounter the problem of insufficient load capacity.Based on the analysis of the transmission principle of RV reducers and the stress of the cycloidal pin-wheel pair,a multi-objective optimization mathematical model of RV reducers is established by selecting structural parameters eccentricity and pin tooth radius as optimization variables to improve the load capacity.NSGA-Ⅱ algorithm is used to solve the model,and the Pareto optimal solution is obtained by optimization,and the optimal scheme is selected by fuzzy set theory.Taking the 150BX RV reducer as an example,the optimized RV reducer prototype is manufactured,and the load capacity and transmission efficiency are tested.The test results show that the optimized RV reducer has significantly improved the bearing capacity under rated load,and the performance under heavy load is even better.It is verified that the multi-objective optimization mathematical model is feasible and can effectively improve the load capacity,which provides a useful reference for the practical engineering optimization design of RV reducers.
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