What are the models applicable to the broken axle?

The trailer axle is one of the main structural forms of the axle. Compared with the common monolithic axles, the split axles do not have a solid or hollow axle in the middle, but instead a jointed structure, so that the two wheels can achieve relative motion between each other.

To put it in plain English, the two wheels on the same shaft, whether they beat or swing, can achieve complete independent movement without interfering with each other. The premise of this function is that the two wheels each use an independent suspension and are connected to the frame through their own suspension system.

Therefore, the suspension used by the broken axle is generally an independent suspension, and the broken axle can also be called an "independent suspension axle".

The style of the broken axle can be further subdivided, such as the following:

1. Single cross arm broken axle

This kind of axle is rarely used now, because when the suspension is stressed and deformed, the wheel is easy to tilt and cause the vehicle's wheel base to change, affecting the firmness of the tire grip. In addition, if the axle is equipped with the steering function, it is easy to make the kingpin internal inclination Angle and the wheel camber Angle have a large change, which has a certain impact on the steering control.

2, double cross arm broken axle

This kind of broken axle is generally used on the front wheel of the car, and its upper and lower swinging arms are not equal in length, which can control the Angle of the wheel and the kingpin and the change of the wheel base. When the wheel moves up and down, the curvature of the upper arm is smaller than that of the lower arm, which can achieve slight internal and external movement of the upper part of the tire, while the bottom influence is small, which is conducive to reducing tire damage and improving the ride comfort and directional stability of the vehicle.

3. Single longitudinal arm type broken axle

This kind of axle is more used in the non-steering wheel, because its wheel up and down jump amplitude is large, easy to make the kingpin rear Angle has a great change, affecting the driving stability.

4. Double longitudinal arm type broken axle

This form of axle is suitable for the steering wheel, and its two longitudinal arms are generally the same length, so that a parallel four-link mechanism can be formed, and the rear Angle of the kingpin can be maintained when the wheel is jerked up and down.

To say the advantages of the broken axle, the first one is that the driving stability is relatively high, the reason is that the middle of the broken axle replaces the shaft rod, and the installation position of the engine can be reduced or moved forward to a certain extent, so that the center of gravity of the vehicle is lower, which can improve the stability of the driving.

In addition, the wheels on both sides of the broken axle are respectively installed independent suspension, and when one side is jolted, the other side can not be affected, which can improve the comfort of driving to a certain extent.

Also because of the performance that the two sides of the wheel can move independently, the vehicle can quickly escape from the road conditions such as rotten roads, steps, deep trenches, cross shafts, shell pits, mud, etc., so it is widely used in a variety of military vehicles or off-road vehicles.

Although the split axle has obvious advantages, it is not suitable for all vehicles. For example, a truck is more suitable for an integral axle than a broken axle.

Why is that? There is a joint connection structure between the two sides of the broken axle, and the load-bearing performance is naturally less than the hollow or solid shaft beam of the integral axle, so it is powerless when transporting goods.

In contrast, although the integral axle is slightly weaker in ride comfort and vibration resistance, it can provide greater load bearing force and torque, and the modeling structure is relatively simple, daily maintenance and maintenance are more convenient, and it is suitable for freight vehicles.

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