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凡是速度 V≤2m/s 的电梯均采用齿轮曳引机。曳引机是电梯中至关重要的部件,如果制造不良将会产生严重振动、噪音及大大降低传动效率等后果。尤其传动效率问题已引起电梯行业的高度重视。一、提高曳引机传动效率的途径曳引机蜗杆传动效率的计算公式与齿轮传动效率的计算公式类似(η=η_1·η_2·η_3),也是主要考虑以下三个方面:(一)啮合效率η_1它主要考虑到齿面间相对滑动的功率损失,蜗轮传动的啮合效率可按下式计算:
All elevators with speed V ≤ 2m/s are geared. The traction machine is a vital part of the elevator. If it is poorly manufactured, it will have serious vibration, noise and greatly reduce the transmission efficiency. In particular, the transmission efficiency problem has caused the elevator industry to attach great importance. First, to improve the drive efficiency of the traction machine traction drive worm drive efficiency calculation formula and gear transmission efficiency is similar to the formula (η = η_1 · η_2 · η_3), but also mainly consider the following three aspects: (a) the efficiency of meshing Η_1 It mainly considers the relative power loss between the tooth surfaces. The meshing efficiency of the worm gear drive can be calculated as follows: