双定子马达滚柱受力特性分析与实验研究

为了寻求具有滚柱受力小、间隙补偿能力强的双定子马达叶片结构，改善双定子叶片液压马达运行的平稳性，提出一种U形连杆槽结构。对双定子液压多速马达4种不同工作方式下的滚柱受力特性进行分析，推导出滚柱与连杆槽之间的摩擦力与滚柱偏转角、槽型夹角的关系，从而得到滚柱磨损量对各接触面正压力的影响。同时还进行了实验研究。结果表明：具有U形连杆槽的叶片结构不仅可以改善滚柱与连杆之间的应力状态，还可以使滚柱与各接触面之间的正压力的变化率趋于稳定。

Analysis on Force Characteristics of Double-Stator Motor Rollers and Experimental Research

In order to find a double-stator motor blade structure with small roller force and strong clearance compensation ability, and to improve the smooth operation of the double-stator blade hydraulic motor, a U-shaped connecting rod slot structure was proposed. The roller force characteristics under four different working modes of the double-stator hydraulic multi-speed motor were analyzed, and the relationship between the friction force between the roller and the connecting rod groove and the roller deflection angle, and the groove angle was deduced,to obtain the influence of roller wear on the positive pressure of each contact surface. At the same time, experimental research was also carried out. The results show that the blade structure with U-shaped connecting rod groove can not only improve the stress state between the roller and the connecting rod, but also make the change rate of the positive pressure between the roller and each contact surface more stable.