Classification of trailer axles

The integral axle is like a huge barbell, whose two ends support the body through the suspension system, so the integral axle is usually matched with the non independent suspension; Split axle, like two umbrellas inserted on both sides of the body, and then through the suspension system to support the body, so split axle with independent suspension.

According to the different driving modes, the trailer axle can be divided into four types: steering axle, drive axle, steering drive axle and support axle. The steering axle and support axle belong to the driven axle. Most cars adopt front rear drive (FR), so the front axle is used as the steering axle and the rear axle is used as the drive axle; For FF vehicles, the front axle is the steering drive axle and the rear axle is the support axle.

The structure of the steering axle is basically the same, which is composed of two steering knuckles and a beam. If the beam is compared to the body, the steering knuckle is his head shaking from left to right, and the neck is what we often call the kingpin. The wheels are mounted on the steering knuckle, as if he had a straw hat on his head. However, when driving, the straw hat turns, but the head does not turn, and the middle is separated by bearings, The neck kingpin is the axis of the wheel. The axis of this axis is not perpendicular to the ground, and the wheel itself is not vertical. We will discuss it in the section of wheel alignment.

The difference between the steering drive axle and the steering axle is that everything is hollow. The cross beam becomes the axle housing, and the steering knuckle becomes the steering knuckle housing, because there is a drive shaft inside. The drive shaft is divided into two half shafts by the differential in the middle of the axle housing. The two straw hats are not simply put on the head, In addition, it is directly connected with the two half shafts inside. The half shaft also has an additional joint at the "neck" - universal joint, so the half shaft also becomes two parts, the inner half shaft and the outer half shaft. www.chinaaxle.cn