Constant velocity universal joint noun explanation

Source: Bearing network time: 2018-01-11

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A constant velocity joint is a joint that connects two axes that do not coincide; and the two shafts transmit the moving tissue at the same angular velocity. It is an important component in the car transmission system; its function is to transfer the power of the engine from the transmission to The driving wheel of the car; satisfied with the demand of the outer end corner of the car drive shaft, the engine's power is transmitted to the wheel smoothly and firmly, to compensate for the jumping of the inner end suspension of the car.
There are many types of constant velocity joints for cars; the most commonly used ones are the ball cage type constant velocity joints and the tripod type constant velocity joints; it has the first sliding sleeve, three-way shaft, transmission shaft and star. The primary parts of the sleeve, the cage and the bell-shaped shell are composed. Because the constant velocity joint transmits a deep driving torque; the load is heavy; the transmission precision is high; the demand is large; and it is a safety part; therefore, the primary parts are selected Forgings are processed.
Constant velocity joint; English name: CVJoint (ConstantVelocityJoint) constant velocity joint; is the universal joint of the drive shaft and the output shaft (angular speed). It is on the front-wheel drive car; its front axle is installed There is a constant velocity joint drive shaft (drive and steering).
The power of the front-wheel drive vehicle; the powertrain consisting of the engine, the transmission and the final drive is transmitted directly to the front wheel. The front wheel is both the drive wheel and the steering wheel; the deflection is large when turning; Up to 400 or more. At this time, it is impossible to use the conventional universal universal transmission shaft with a small deflection angle. Because the general universal joint has a large deflection angle, a large fluctuation of the rotational speed and torque will occur. It is necessary to use a constant velocity joint drive shaft with large deflection angle and uniform angular velocity.
The principle of the constant velocity joint is similar to that of the bevel gear meshing; since the bearing point of the force transmission point is always on the bisector of the angle between the two axes; thus ensuring the constant velocity motion. The defect of the constant velocity joint is that the layout is complicated. The production process is fine; the cost is high; therefore, it cannot completely replace the general universal joint.
The presentation of constant velocity joints; greatly promoted the development of front-wheel drive vehicles and all-wheel drive vehicles.
The constant velocity universal joint for front wheel drive; the wheel end fixed type and the differential end sliding type; the latter can slide elastically in the axial direction to compensate for the change of the axial length.

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