The role and use of automobile leaf springs
Date:2021-10-29 Click:710
Leaf spring: It is made up of multiple steel plates of unequal length and unequal curvature. After installation, both ends naturally bend upwards. When the impact force of the road surface on the wheels is transmitted, the steel plate deforms, which acts as a buffer and damping vibration, and it also has a guiding force transmission effect when it is arranged longitudinally. Most non-independent suspensions use leaf springs as elastic elements, which eliminates the need for guiding devices and shock absorbers, and has a simple structure.
Leaf spring is the most widely used elastic element in automobile suspension. It is a combination of several alloy springs of equal width but unequal length (the thickness can be equal or unequal). Of elastic beams.
When the leaf spring is installed in an automobile suspension and the vertical load it bears is positive, each spring leaf is deformed under force and has a tendency to bend upward. At this time, the axle and the frame are close to each other. When the axle and the frame move away from each other, the positive vertical load and deformation of the leaf spring will gradually decrease, sometimes even in the reverse direction. The rolling ears of the main film are severely stressed and weak. In order to improve the stress of the main film rolling ears, the end of the second film is often bent into a rolling ear and wrapped around the main film rolling ear, which is called a wrapping ear. In order to make it possible for each piece to slide relatively when it is elastically deformed, a large gap is left between the rolling ears of the main piece and the wrapping ears of the second piece. In some suspensions, the two ends of the leaf springs are not made into curled ears, but other support connection methods, such as rubber support pads, are used.
The flat rectangular steel plate is in a curved shape. It is a chassis spring composed of several pieces. One end is mounted on the hanger with a tip, and the other end is connected to the beam with a lifting lug, so that the spring can expand and contract. It is currently suitable for medium and large cargo trucks.
