Truck Leaf Spring Assy

60Si2Mn Truck Leaf Spring Assy

Automotive leaf springs are also called blade springs.

The principle of action of the leaf spring is the characteristics of its mechanical structure, because the middle of the leaf spring is fixed by riding bolts, and the curl lugs at both ends are hinged on the bracket, thus playing a cushioning role. Moreover, the two ends of the leaf spring will show a natural state of upward bending after installation, which can play a role in the transmission of force in the longitudinal arrangement, so that the structure such as shock absorbers can be omitted. Moreover, the leaf spring will be made into an inverted triangle shape in various superimposed processing, and the number of steel plates is determined according to the required shock absorption effect and the load-bearing of the car. The greater the number of steel plates, the thicker the thickness, and the shorter the length, the better their elasticity and rigidity.

In order to better improve the performance of leaf springs, we need to optimize them. Due to the vertical positive load of the steel plate, each steel plate spring reed will be deformed due to the action of force, and the phenomenon of upper arch bending will occur. Especially in large, heavy trucks, leaf springs are weak points, and the rolling lugs of the main piece are severely stressed, in order to improve this situation, manufacturers usually make a structure of clad ears at both ends of the second piece, or use other support or connection methods such as rubber support pads.