摘要
为了实现双定子液压马达的径向间隙补偿与可靠密封,提出了一种连杆外滚柱结构形式.依靠马达工作时产生的离心惯性力与液压力差,将连杆与滚柱分别压紧内、外定子曲线,形成密封容积;对不同工况下的双定子液压马达进行了受力分析,得到了各接触面正压力的数学表达式;同时搭建了试验台进行验证.结果表明:连杆外滚柱结构的双定子液压马达能够在实现滚压的同时具有更高地容积效率和比功率,连杆滚柱组与外定子间有滚动摩擦,减少了对定子曲线的磨损,延长了马达的工作寿命.
In order to achieve radial clearance compensation and reliable sealing, connecting rod outer pin roller double-stator multi-motor was proposed. Driven by the high pressure oil and centrifugal in- ertial force, the connecting rod and the pin roller were pressed on the stators tightly, forming the seal- ing volume. Force analysis was done under different working Conditions, and the mathematical ex- pressions of the positive pressure on each interface were obtained. The experimental platform which used to test the prototype was set up. The results indicate that connecting rod outer pin roller doublestator multi-motor can acquire rolling while maintaining higher volumetric efficiency and have higher power density, and the rolling contact in the motor can reduce the wear and tear in stator curves, which will prolong the service life of the motor.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第5期57-60,74,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50975246)
关键词
双定子液压马达
密封机理
径向间隙补偿
差动连接
容积效率
double-stator multi-motor
sealing mechanism
radial clearance compensation
differentialconnection
volumetric efficiency
