静压支承摆动液压马达研究  

Research on the Static Pressure Support Rotary Hydraulic Actuator

作　　者：李树立[1] 焦宗夏[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100083

出　　处：《润滑与密封》2006年第8期49-51,64,共4页Lubrication Engineering

基　　金：高等学校博士学科点专项科研基金资组项目(20010006016)

摘　　要：在工程实际需求的基础上,将静压支承技术应用在摆动马达结构设计中,设计了静压支承摆动液压马达。考虑马达轴向间隙形成的节流液阻以及转速和油温变化对静压支承的影响,推导了相应的计算公式,并给出了具体的仿真实例。仿真结果表明,马达轴向间隙所形成的节流液阻及马达转速对所设计的静压支承摆动液压马达影响很小,油温变化对承载能力有一定影响。该结构能使马达转子具有轴向自动对中能力,提高了摆动马达寿命及控制特性。Based on the requirements of engineering, a static pressure support rotary hydraulic actuator was designed by using the static pressure support technology in the design of the rotary hydraulic actuator. Considering the influence upon static pressure support of variance of liquid resistance which produced by axial clearance, rotational speed and oil temperature of the actuator, corresponding calculation formulas were deduced. Simulation results indicate that variance of liquid resistance, rotational speed of actuator have less influence upon carrying capacity, but oil temperature of actuator has some influence upon carrying capacity. The designed rotary hydraulic actuator has the ability of auto centering, which improves the serve life and control characteristics of the actuator.

关 键 词：静压支承 摆动液压马达 自动对中 

分 类 号：TH137[机械工程—机械制造及自动化]