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有蜗轮传动,特别是有自行制动蜗轮传动的机械中蜗轮惰性运转过程(即在无作用力,如切断电能在电驱动的情形下),从机械构件强度方面来看是一危险过程,会使机械破坏。实际上,如果从自行制动蜗轮上(图一)突然解除主动轴上的旋转力矩,随之作惰性运动,则由於蜗杆不可能为蜗轮驱动,在蜗杆与蜗轮的惰性力矩成一定的比值时(包括与它们相连的其余机械零件的惰性力矩在内),蜗杆当蜗轮还有一些动力的时候即行停止。这种动力没有可能将蜗杆转回,而转变成使齿和轴变形的位能,并可能使齿和轴破坏。
In the case of worm gear drives, in particular in the case of machines with self-braking worm gears, which are inert processes (ie in the absence of force, eg in the case of electrically driven cutting off of electrical energy), this is a dangerous process in terms of the strength of the mechanical components. To mechanical damage. In fact, if the inertial moment of the worm shaft is not driven by the worm when the inertia torque of the worm shaft and the inertia moment of the worm wheel (Including the inertial moments of the remaining mechanical parts connected to them), the worm stops when the worm wheel still has some power. This kind of power is not likely to turn the worm back, but into the deformation of the teeth and shaft potential energy, and may damage the teeth and shafts.