1. What is an axle?
An axle is a bridge-type structure that is connected to the frame (or load-bearing body) through the suspension and has car wheels mounted on both ends. The function of the axle is to transmit the forces and moments in all directions between the frame (or load-bearing body) and the wheels, which has an important impact on the car’s power, stability, load-bearing capacity and other properties. If it is used as a drive axle, in addition to its load-bearing function, it also plays the role of drive, reduction and differential.
2. What types of axles are divided into
1. According to the different driving methods,Axles are divided into four types: steering axle, drive axle, steering drive axle and support axle.
(1) Steering axle: The structure of the steering axle consists of the front axle, steering knuckle, kingpin and wheel hub.
(2) Drive axle: It is the bridge that provides power output. Rear-wheel drive vehicles generally come in two forms: single-wheel drive and two-wheel drive.
(3) Steering transaxle: a transaxle with steering function, common in cars, trucks are only available in all-wheel drive models.
(4)Support bridge: no power output, only plays a load-bearing role. The middle or rear axle of some single-axle driven three-axle vehicles is a support axle. The axles on the trailer are all support axles. There is also a form of suspended bridge in the support bridge. A suspended bridge refers to a bridge that can float up and down. Its structure is basically similar to an ordinary supported bridge, with the addition of a lifting mechanism.
2. According to different suspension structures, axles can be divided into integral and disconnected axles.
(1) Integral axle: When using non-independent suspension, the center of the axle is a solid or hollow center beam.
(2) Disconnected axle: The separated axle is an articulated structure and is used together with independent suspension.
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