Causes Of The First And Second Pieces Of Automobile Leaf Spring Easy To Break

The first piece of steel plate, especially the front section of the front steel plate, is very important. The steel plate is fixed on the axle and connected to the main beam through steel plate pins, playing an important role in positioning the axle. If it breaks, it will cause the axle to move forward and backward, resulting in uncontrollable direction.

(1) Excessive use of emergency braking. Driving in mountainous areas and using emergency braking downhill can easily cause the front steel plate to break. Because when braking is adopted, most of the load of the car moves forward and is borne by the front leaf spring, which is easy to cause fatigue and fracture of the leaf spring. It is recommended to use exhaust braking instead of emergency braking.

(2) If the brake adjustment is too tight, if the brake efficiency is poor or a problem suddenly occurs, emergency braking will be adopted, so that the leaf spring will be broken due to too much impact.

(3) The leaf spring is subject to too much impact force due to poor road surface, overload and overspeed, which is easy to fracture.

(4) The leaf spring breaks due to fatigue due to frequent overloading, long use, reduced elasticity and rigidity.

(5) The leaf spring with poor quality was replaced. The curvature of its blade did not meet the standard, the steel plate material was poor or the heat treatment was poor, resulting in uneven stress and fracture.

(6) The small clip screws of the steel plate are not installed or the gap between the screws and the steel plate is too large. When the vehicle is bumpy, the steel plate pins drive the first and second plates of the steel plate to float up and down, causing excessive up and down travel of the first and second plates of the steel plate.

In order to prevent the first and second pieces of leaf spring from breaking, the following methods are recommended:

(1) Regularly inspect and prepare for the unexpected.

(2) Properly adjust the vehicle's brakes.

(3) Use less emergency braking and more engine exhaust braking.

(4) Driving in curves, do not turn too quickly.

(5) When replacing steel plate blades, high-quality ones should be selected to ensure that their bending meets the regulations.

(6) Load evenly, without deviation, and without overloading.

(7) When driving on uneven roads or downhill, the speed should be controlled.

(8) Install steel plate small clips to fasten one or two steel plates with three or four steel plates together.