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What is double universal joint axle shaft?

Views: 2     Author: Site Editor     Publish Time: 2021-11-01      Origin: Site

Introduction of front axle u joint shaft

The universal joint is a mechanical part that realizes variable Angle power transmission and is used to change the direction of thefront axle u joint shaft company-Xinsanming transmission axis. It is the "joint" part of the universal transmission device of the automobile drive system. The combination of universal joint and drive shaft is called universal joint transmission device. In the front engine rear wheel drive vehicle, the universal joint transmission device is installed between the transmission output shaft and the drive axle main reducer input shaft; In front-engine, front-wheel drive vehicles, the drive shaft is omitted, and the universal joint is installed between the front axle axle, which is responsible for both driving and steering, and the wheels.

The structure and function of universal joints are similar to joints on human limbs, which allow the Angle between the connected parts to change within a certain range. In order to meet the power transmission, adapt to the Angle change caused by the up and down jumping caused by the steering and the car running, the drive axle of the front drive car, the half shaft and the wheel shaft are commonly connected with the universal joint. However, due to the limitation of axial size, the deflection Angle is relatively large, and a single universal joint can not make the output shaft and the instantaneous angular velocity of the shaft into the shaft equal, easy to cause vibration, aggravate the damage of components, and produce a lot of noise, so a wide variety of constant velocity universal joint. In front drive vehicles, each half axle uses two constant speed universal joints, the one near the variable speed drive axle is the inner half axle universal joint, the one near the axle is the outer half axle universal joint.

The working principle of front axle universal joint shaft

When six relatively the cardan universal joint fork when swinging Angle range, 1 double fork may also be driven deflection corresponding Angle, make the two cross axis center and the Angle of cut the axis of the two cardan 1 and 6 (i.e., the alpha and alpha 1 in figure 1 (2) difference is very small, so that the two shaft angular velocity is close to equal, the difference in the allowable range, so the duplex universal joint has a constant speed.

When the double universal joint is used for steering drive axle, there can be no indexing mechanism, but it must be ensured that the center of the double universal joint is located at the intersection of the main pin axis and the half shaft axis in the structure to ensure quasi-constant speed transmission.

The double universal joint allows a larger Angle between shafts, and has the advantages of simple structure, convenient manufacture and reliable operation.


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  : +86 29 86033971
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  : The Innovation Industrial Park, No.36, Jingwei Road ,Xi'an Economic and Technological Development Zone,Xi'an City,Shaanxi Province,China
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