Automobile Leaf spring eye rolling processing-WONDEE Autoparts 09-July 2020

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Leaf spring, which is the most commonly used spring suspension component of freight cars, plays an elastic role between the frame and the axle, reduces the bumpy feeling brought by the vehicle on the road, and ensures the stability and comfort of the vehicle in the process of driving.

Automobile leaf spring function: Shock absorption and buffering.

Leaf spring, also known as leaf spring, is the most widely used elastic element in automobile suspension. The structure of automobile suspension is generally composed of elastic element, guiding mechanism and shock absorber. The elastic element can be divided into leaf spring, air spring, spiral spring and torsion bar spring. Among them, leaf spring is widely used in freight cars.

Important Processing technology of automobile leaf spring: Eye Rolling and Eye wrapping .

1. Upper rolling eye
Upper roll eye are used in most vehicle models. At the same time, in order to strengthen the strength of the first piece of lug and protect the first piece after fracture, the front end of the second piece adopts the wrap Eye structure. The reason why the first piece is easy to fold is that there is an action arm (additional bending moment) between the force transfer center and the root of the first piece, and the shear stress and bending stress act near the root. The front length of the upper roll eye must be processed accurately, otherwise the axle will be installed askew and the vehicle will deviate.

2. Lower rolling eye
Generally, it is designed to meet the requirements of the layout and motion track. Because the rolling eye has to bear vertical load, the thickness of the rolling eye should be thicker, otherwise it is easy to open and produce plastic deformation.

3. Flat rolling eye
This kind of rolling eye form is much more reasonable than that of upper rolling eye form, but it is also much more difficult in technology. Generally, this kind of rolling eye form is mostly used in off-road vehicles. There is no bending moment of the upper eye, and the root of the eye is only under tension.

The flat roll eye can reduce the stress of the ear, because the direction of the longitudinal force coincides with the center line of the main section of the spring. For springs that cannot increase the thickness of the main piece and must ensure the strength of the main roll eye, the flat eye is mostly used. However, the manufacturing of flat roll eye is more complicated than the above two types of ears, and the manufacturing cost is higher. Generally, flat eyes or lower ears are used in cars.

WONDEE Autoparts Leaf Spring Series include : conventional spring, parabolic spring, semi-trailer spring, trailer spring, pickup spring, boat trailer spring, truck spring, agricultural vehicle spring, sprung drawbar, air linker, TRA spring, OEM spring etc, Loose spring, and steel flat bar for springs;

Видео Automobile Leaf spring eye rolling processing-WONDEE Autoparts 09-July 2020 канала Richard Luo