【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20210618
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True or False: The characteristic of a toothed clutch is that it can engage smoothly during operation, without any shocks or noise. (X) For the daily question activity in the moving equipment section, please respond within three days. Correct answers earn rewards ranging from 5 to 15 points; those who provide detailed answers receive additional rewards. Those who get it wrong receive no points. All forum members are welcome to participate actively and support the development of the forum! ! !
Wrong; a interlocking clutch has a gap between the teeth and the grooves
Wrong. In principle, a snap clutch cannot be engaged or disengaged while in motion, as this generates significant impact forces; not to mention the noise, and the teeth may even break under high speeds. A friction clutch is more suitable for engaging and disengaging during movement.
Error! The interlocking clutch has a simple structure and small external dimensions, and it is capable of transmitting large torques; therefore, it is widely used. However, it should be used only when the two shafts do not rotate and the speed difference is very small, otherwise the teeth may break due to impact
Error analysis: A toothed clutch consists of two semi-clutches with teeth on their end faces. Semi-clutch 1 is fixed to the driving shaft, while semi-clutch 2 is connected to the driven shaft via guide keys (or splines). An actuating mechanism is used to move the slider axially, thereby enabling disengagement. It has a small size but can transmit high torque; after engagement, there is no relative sliding between the driving and driven shafts, and the transmission ratio remains constant. However, there is impact during engagement, making it suitable for static engagement or when the speed difference is small (≤10 r/min for rectangular teeth, and ≤300 r/min for other tooth shapes); it is mainly used in the drive shaft systems of low-speed machinery.