Analysis on the self-locking effect and slipping motion of balls in the screw pair
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Abstract:
In view of self-locking and slipping phenomenon on restricting high-speed operation of ball screw, the model of ball screw is constructed and theoretical analysis of the movement feature of ball screw is made to reveal the reason of self-locking and slipping, and its influence on high-speed operation. Then the sliding speed format of ball screw is derived according to the movement rules of ball screw, and effective methods to avoid ball self-locking and slipping are put forward. Dynamics analysis is conducted with ADAMS software. Simulation results have confirmed the correctness of ball screw’ movement.
