基于ADINA分析的连续回转电液伺服马达结构优化及性能研究

Research on Performance and Structure Optimization of Continuous Rotary Electro-hydraulic Servomotor Based on ADINA

为了改善连续回转电液伺服马达的超低速性能,采用ADINA软件对钢壳及铝壳电液伺服马达的配油盘进行了有限元分析,在系统开环性能实验基础上,对现有钢壳及铝壳连续回转电液伺服马达进行了低速性能对比实验,结果表明在油压的作用下,铝壳马达配油盘产生较大的变形及端面间隙,内泄漏是铝壳马达产生低速脉动及爬行现象的主要原因,为此对配油盘结构及叶片顶廓形状进行了优化,使变形量及内泄漏大为减少,且改进后的叶片最大压力角为14.043度。该研究为新型连续回转电液伺服马达的设计奠定了基础。

In order to improve the low speed performance of continuous rotary electro-hydraulic servomotor, this paper adopted ADINA software to carry out finite element analysis on the valve plate of steel shell and aluminum shell servomotor, and based on open loop performance experiment, the low speed performance of steel shell and that of aluminum shell continuous rotary electrohydraulic servomotor was compared through the comparison experiment. The result is that the deformation of aluminum shell servomotor is very large, and it creates the gap, and the fact is that the inner leakage is the main reason for the low speed crawling phenomenon; therefore, the structure of the valve plate and the vane structure are optimized, and the deformation and leakage decreases greatly. After improvement, the maximum pressure angle is 14. 043 degree, which supplies foundation for the design of new type servomotor.