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众所周知,在曲柄传动机构中,主动件和从动件的传动比是周期变化的。所以,对于主动件速度高的机器或要加速的质量大的机器而言一例如,在轧制工业中的辅助机械以及钢板加工工业中的成形机处往往出现主动件速度高和要加速的质量大这种情况一在传动件中出现很大的动力,而且在计算时务须考虑它。为此,了解从动件的最大加速度乃是必不可少的先决条件。铰销四连杆机构中从动件的加速度分为法向分量和切向分量。后者根据从动件的角加速度得出.
As we all know, in the crank drive, the drive and follower gear ratio is cyclical. Thus, for machines with a high active speed or for mass-accelerated machines, for example, auxiliary machines in the rolling industry and formers in the sheet-metal working industry tend to have high speeds and accelerations of the drive In this case, there is a great momentum in the transmission, and it must be considered in the calculation. For this reason, understanding the maximum acceleration of the driven part is an indispensable prerequisite. Hinge four-bar linkage in the acceleration of the follower is divided into normal components and tangential components. The latter is based on the angular acceleration of the follower.