1
What is?
That cardan universal joints, the angle is variable to achieve power transmission parts, required for changing the position of the propeller shaft line direction, which is the vehicle drive system Wan the “joint” of the transmission member. In combination with a universal joint shaft, called gimbal gear.
2
Structure and Function
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section gimbal joint structure and function somewhat like the human limbs, which allows the angle between the connecting part is varied within a certain range. To meet the power transmission, and the steering angle adaptation generated during operation of the vehicle caused by change up and down, is connected between the common joint front drive axle driven motor vehicle, with the axle half shafts. However, due to restrictions by the axial dimension, and requires a relatively large angle, a single universal joint shaft and the output shaft can not instantaneous angular velocity of the shaft is equal to, likely to cause vibration, increased damage to the components, and generates a lot of noise, so widely used in a variety of constant velocity joints. Front drive vehicle, each axle with two constant velocity joints, and close to the transaxle joint is a joint inner axle, the axle near the outer joint axle. The rear drive vehicle, the engine, the clutch and the transmission as a whole is mounted on the frame, and the drive axle connected to the frame by elastic suspension, having a distance therebetween, connection. Uneven road operation of the vehicle from bouncing, load change or difference of two assemblies mounted, will be such that the transmission output shaft to the drive axle gear unit input angle and distance between the axes is changed, so after driving the car gimbal transmission forms are double universal joints, that the two ends of each shaftA universal joint, its role is to both ends of shaft angle are equal, in order to ensure instantaneous angular velocity of the output shaft and the input shaft is always equal.
3
Type
according to its velocity joint characteristic is not divided into constant velocity joint (universal joint cross shaft common), the quasi-constant velocity universal joint (a duplex, three-shaft type, etc.) and a constant velocity universal joint (ball type, composition type, etc.).
universal joint stiffness their size, can be divided into rigid and flexible gimbal joint.
