传动轴原理

传动轴是由轴管、弹性套和万向节组成。弹性套能主动调理变速器与驱动桥之间间隔的改变。万向节是确保变速器输出轴与驱动桥输入轴两轴线夹角的改变，并完成两轴的等角速传动。

万向节是轿车传动轴上的要害部件。在前置发动机后轮驱动的车辆上，万向节传动轴设备在变速器输出轴与驱动桥主减速器输入轴之间；而 前置发动机前轮驱动的车辆省掉了传动轴，万向节设备在既担任驱动又担任转向的前桥半轴与车轮之间。轿车是一个运动的物体。在后驱动轿车上，发动机、离合器 与变速器作为一个全体设备在车架上，而驱动桥经过弹性悬挂与车架衔接，两者之间有一个间隔，需求进行衔接。轿车运转中路面不平发生跳动，负荷改变或许两个总成设备方位差异，都会使得变速器输出轴与驱动桥主减速器输入轴之间的夹角和间隔发生改变，因而要用一个“以变应变”的设备来处理这一个问题，因而就有了万向节。

universal joint is the key part of automobile transmission shaft. In the front engine rear wheel drive vehicle, the cardan shaft installed in the transmission output shaft and the drive axle main reducer input shaft; and the front engine front drive vehicle omits the drive shaft, gimbal mounted between the drive and is responsible for responsible for steering front axle shaft and the wheel. A car is a moving object. In the rear drive vehicle, the engine, the clutch and the transmission are installed on the frame as a whole, and the drive axle is connected with the frame through the elastic suspension. The car running road surface bouncing, load change or two assembly position difference, will make the transmission output shaft and the drive axle main reducer between the transmission input shaft angle and distance change, so use a device to change the strain "to solve the problem, so there is the universal joint.