本文对超越离合器作了受力分析,提出了超越离合器在正常工况下(自行锁紧、自行脱离和传递工作载荷),楔角“α”必须满足不等式:-(_2-_1)<α<_2-_1。 一、超越离合器是由套筒1、滚子2、星轮3等主要元件组成(图1)。主动件转动时,滚子在摩擦力作用下滚向槽角尖部楔紧于槽中,主动件就带动从动件一起转动,这就是超越离合器的接合。套筒与星轮都可作主动件,但传递扭矩的方向相反。图1所示是套筒为主动 In this paper, the force analysis of the overrunning clutch is presented. The wedge angle “α” must satisfy the inequality of the overrunning clutch under normal conditions (self-locking, self-disengagement and transmission of working load): - (_ 2-_1) _2-_1. First, the clutch is from the sleeve 1, roller 2, Star 3 and other major components (Figure 1). When the driving part rotates, the roller rolls under the frictional force to wedge the groove tip, and the driving part drives the driven part to rotate together. That is to say, the clutch is engaged. Sleeve and the star wheel can be used as the active parts, but the opposite direction of torque transmission. Figure 1 shows the sleeve is active