液压电机泵电机转子转速的数值分析  

Numerical Analysis of Rotational Speed of Rotor of a Hydraulic Motor-Pump

作　　者：冀宏[1] 任威[1] 孙东宁[1] 王文璐[1] 

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050

出　　处：《甘肃科学学报》2014年第1期71-74,共4页Journal of Gansu Sciences

基　　金：国家自然科学基金项目(51075194);甘肃省科技支撑项目(1011GKCA041)

摘　　要：针对研制的11kW液压电机泵,通过理论计算与流场解析,并运用电磁仿真软件Ansoft中RMxprt模块对电机转子的转速进行数值分析.研究发现:浸油负载导致液压电机泵浸油电机带载启动,造成的功率损失较大,随油温升高,该项损失会快速减小;转子鼠笼导体材料的电阻率对转速影响较大,额定压力下,紫铜鼠笼电机的转速能够提高81r/min,采用电阻率小的导体可有效提高其转速及电机泵总效率.Aimed at the 11 kW hydraulic motor pump prototype, the rotational speed of the motor rotor is numerically analyzed by using the CFD （Computational Fluid Dynamics） technique and the RMxprt module of the software Ansoft. The study showed that viscous load caused the load starting of the motor and thus the loss of power,and the loss decreased rapidly with the increase of the oil temperature,and that the resis- tivity of the rotor squirrel cage conductor material had a great impact on the rotational speed,and the speed of the copper squirrel cage motor increased by 81 r/min. Thus, the use of material with lower resistivity could effectively improve the speed and efficiency of the motor pump.

关 键 词：液压电机泵 电机转子 转速 浸油负载 鼠笼 

分 类 号：TH137[机械工程—机械制造及自动化] TM343[电气工程—电机]