Research on vane end face of cam-rotor vane servo motor based on disturbing torque

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• 作者：Fan Yuan 袁 璠 ; Xuyong Wang 王旭永…
• 关键词：Key wordscam ; rotor vane motor (CRVM) ; vane end face (VEF) ; disturbing torque ; reduced oil pressure ; normal contact force ; servo performance
• 刊名：Journal of Shanghai Jiaotong University (Science)
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：21
• 期：6
• 页码：641-647
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Electrical Engineering; Materials Science, general; Computer Science, general; Architecture, general; Life Sciences, general;
• 出版者：Shanghai Jiaotong University Press
• ISSN：1995-8188
• 卷排序：21

文摘

Cam-rotor vane motor (CRVM) is one of the new continuous hydraulic servo motors with the characteristics of no pulsation of instantaneous flow rate and output torque, small volume and rotating inertia. It is one of the appropriate actuators for hydraulic servo system which has good dynamic and steady-state performance requirements. The ideal output torque of CRVM is pulseless, but the actual output torque of CRVM is pulsating. This is caused by the disturbing torque of contact components, especially the friction between vane and cam-rotor. In order to get better performance of CRVM, which means more stable output torque and smaller disturbing torque, we discuss four kinds of vane end faces (VEFs). Analytic formulae of the normal contact force and the disturbing torque caused by the vane are derived from systematical force analysis. The normal contact force and the disturbing torque vary through a period under different VEF, and the reduced oil pressure is simulated in this paper. The simulation shows that the VEF with the proper round and reduced oil pressure can significantly decrease the disturbing torque and get better servo performance. The experiment results verify the correctness of the theoretical analysis and simulation.