cardan universal joint, i.e., the English name of the universal joint, the angle is variable to achieve power transmission parts, required for changing the position of the propeller shaft line direction, which is the “joint” universal vehicle drive gearing system component. In combination with a universal joint shaft, called gimbal gear. On the front-engine rear drive vehicle, gimbal drive is mounted between the transmission output shaft and gear unit input shaft of the main drive axle; the front-engine front-drive vehicle drive shaft is omitted, gimbal mounting in between both responsible for driving and responsible for steering axle and front axle wheels.
1. Noun interpretation joint
cardan universal joint, i.e., the English name of the universal joint, the angle is variable to achieve power transmission parts, for the need to change the direction of the drive axis position, which is the “joint” of the transmission member universal car drive system. In combination with a universal joint shaft, called gimbal gear. On the front-engine rear drive vehicle, gimbal drive is mounted between the transmission output shaft and gear unit input shaft of the main drive axle; the front-engine front-driveThe vehicle drive shaft is omitted, is mounted between the joint responsible for both driving and steering front axle is responsible for the wheel axle.
Section 2. Gimbal structure and function
Section gimbal joint structure and function somewhat like the human limbs, it is allowed to be connected the angle between the parts vary 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, drive shaft is a universal joint at each end, its role is to both ends of shaft angle equal, thereby ensuring instantaneous angular velocity of the input shaft and the output shaft is always equal to [123 ]
Section 3. Joint Category
According to whether a significant joint elasticity in the torsional direction can be divided into rigid joint and a flexible joint. Not rigid joint can be divided into a constant velocity joint (commonly a cross-axis), the quasi-constant velocity joint (e.g., double cardan) and the constant velocity joint (ball type Wan the festival) three.