径向柱塞马达柱塞腔内动态压力研究  

Study on cylinder pressure transients in radial piston hydraulic motors

作　　者：谈宏华[1] 陈卓如[1] 金朝铭[1] 张守礼[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》1999年第5期126-129,共4页Journal of Harbin Institute of Technology

摘　　要：以径向柱塞液压马达为研究对象，详细分析了柱塞腔内压力的变化过程，建立了柱塞腔内动态压力的数学模型，通过相应的仿真发现，柱塞经过下死点后，腔内压力的延迟降低到回油压力，将大大地增加马达轴上的阻力矩．当马达低速运行时，将是影响马达的低速稳定性的一个重要因素，为了提高马达的低速稳定性，就要严格控制马达的配流遮盖量．Through analysis of transient cylinder pressure in the connecting - rod camshaft hydraulic motors, mathematical models are established for instantaneous pressure. Simulations show the cylinder pressure which defers its reduction to return pressure causes an obvious rise in resistance torque which is one of the important factors having effeet on stability at low speed. Therefore the distribution overlap of motor must he stricily controlled.

关 键 词：动态压力 遮盖量 液压马达 径向柱塞马达 柱塞腔 

分 类 号：TH137.51[机械工程—机械制造及自动化]