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Regulation Method for Torque-Angle Characteristics of Rotary Electric-Mechanical Converter Based on Hybrid Air Gap

《中国机械工程学报:英文版》2020年 第2期 | Bin Meng Yongjiang Lai Xinguo Qiu   Key Laboratory of Special Purpose Equipment and Advanced Processing Technology Ministry of Education Zhejiang University of Technology Hangzhou China
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摘 要:The torque-angle characteristics of electric-mechanical converters are important determinants of the quality of electrohydraulic proportional control systems.It is far more difficult for a rotary electric-mechanical converter(REMC)to obtain flat torque-angle characteristics than traditional proportional solenoid,greatly influencing the promotion and application of rotary valves for electrohydraulic proportional control systems.A simple and feasible regulation method for the torque-angle characteristics of REMCs based on a hybrid air gap is proposed.The regulation is performed by paralleling an additional axial air gap with the original radial air gap to obtain a flat torque-angle characteristic and increase output torque.For comparison,prototypes of REMCs based on hybrid and radial air gaps were manufactured,and a special test rig was built.The torque-angle characteristics under different excitation currents and step responses were studied by magnetic circuit analysis,finite element simulation,and experimental research.The experimental results were consistent with the theoretical analysis.It was shown that REMCs based on a hybrid air gap can obtain a flat torque-angle characteristic with further optimizing of key structural parameters and also increase output torque.This regulation method provides a new approach for the design of proportional rotary electromechanical converters.
【分 类】【工业技术】 > 自动化技术、计算机技术 > 计算技术、计算机技术
【关键词】 Rotary valve Rotary electric-mechanical converter Torque-angle characteristic Hybrid air gap Axial air gap Radial air gap
【出 处】 《中国机械工程学报:英文版》2020年 第2期 100-110页 共11页
【收 录】 中文科技期刊数据库