双联万向节的结构汽车转向驱动轮必须用万向节驱动,而万向节的运转应是等速或接近等速的。过去曾试图采用普通的单十字轴万向节,但其传动角度只能在30°以下,转速范围较低且不能保证等速传动。目前,已有许多种用以传递中、低扭矩的等速万向节,其中大部分为球笼式。这种万向节的传动角度约为40°左右,生产方便,很适合小客车使用。 The structure of a double joint The steering wheel of a car must be driven by a gimbal, while the gimbal should be driven at or near constant velocity. In the past, we tried to use the common single-cross shaft joint, but the transmission angle can only be below 30 °, the speed range is lower and the constant speed transmission can not be guaranteed. At present, there are many types of constant velocity universal joints for transmitting medium and low torques, most of which are ball cage type. This universal joint transmission angle of about 40 °, easy production, it is suitable for small bus use.