Stickslip motion phenomenon usually appears in the servocylinder with using of traditional contact seal because of the friction and the sizable difference characteristics between dynamic friction and static friction. The lower of the accuracy and response speed of the position servosystem was caused directly. Aimed at this problem, it was proposed to use the double conical hydrostatic bearing and added labyrinth seal as the rod seal to lower the friction of servocylinder, and to improve the low speed stability of hydraulic cylinder. It is verified and analyzed by using CFD numerical simulation and AMESim simulation.
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吴晓明,赵子良,郑树伟,姜昊宇.活塞杆非接触密封在伺服液压缸中的应用及其对[J].机床与液压,2015,43(13):71-74. . Use of Noncontact Seal in Servo Cylinder and Its Influence on Low Speed Stability of Hydraulic System[J]. Machine Tool & Hydraulics,2015,43(13):71-74