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轴主要是用来支承作旋转运动的零件(如齿轮、链轮、带轮、车轮等)以实现旋转运动,并传递动力,因此轴是组成机器的重要零件。同时轴在各机件中受力最大,设备常因轴损坏而使机器停车,甚至造成全部机器报废,故在日常维修中应对担负主要任务的轴密切监控与保养,以避免早期磨损或发生事故。轴按其承载情况不同可分为:(1)转轴同时受弯矩和转矩的轴,在各种机器中也是常见的轴。(2)传动轴只受转矩而不受弯矩或所受弯矩很小的轴。
The shaft is mainly used to support rotating parts (such as gears, sprockets, pulleys, wheels, etc.) to achieve rotary motion and power transmission, the shaft is an important part of the machine. At the same time the axis in the mechanical parts of the maximum force, the equipment often due to shaft damage to the machine parking, or even cause all the machines scrapped, so in the daily maintenance of the main tasks to deal with the shaft close monitoring and maintenance to avoid early wear or accident . Shaft according to their different bearing conditions can be divided into: (1) shaft bending moment and torque at the same time, in a variety of machines is also a common axis. (2) The shaft of the transmission shaft is subjected to torque without bending moment or bending moment.