Suspension structure below train of motor train unit

Abstract

The invention discloses a suspension structure below a train of a motor train unit, which comprises an upper fork arm, a lower fork arm, a wheel bearing, a first shock strut, a second shock strut, a disc and a cross rod, wherein the upper fork arm is connected with the upper end of the disc, and the lower fork arm is connected with the lower end of the disc; one end of the cross rod is connected with the lower end of the disc; each of the first shock strut and the second shock strut is composed of a helical spring and a shock absorber, and the helical spring is sleeved on the external surface of the shock absorber; one end of the first shock strut is connected with the bottom end of the disc, and the other end of the first shock strut is upward; and the lower end of the second shock strut is connected with the cross rod, and the upper end of the second shock strut is connected with the first shock strut. The suspension structure disclosed by the invention has the technical effects of reasonable structural design and higher durability and reliability, the lateral inclination of the train is relatively small in a turning process, and the train is not easy to slope downward in an emergency braking process.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to an under-suspension structure of an EMU. Background technique [0002] The suspension system refers to the entire support system composed of springs and shock absorbers between the vehicle body and tires. The proper function of the suspension system is to support the body and improve the riding experience. Different suspension settings will give the driver different driving experiences. Suspension system, seemingly simple in appearance, integrates various forces and determines the stability, comfort and safety of a car. It is one of the most critical components of a modern car. [0003] In the prior art, most existing automobiles adopt the McPherson front suspension. The MacPherson suspension has a simple structure and is light in weight. In addition, the ability of the shock-absorbing strut to withstand lateral impact is weak, making the shock absorber prone to deformat...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a suspension structure under the EMU, which solves the problem that the shock absorber is prone to deformation and oil leakage in the existing automobile suspension system, and the durability is average, and the vehicle tends to roll seriously when turning, and when braking suddenly The obvious technical problem of nodding has achieved the technical effect of reasonable structural design, higher durability and reliability, less vehicle roll when turning, and less easy nodding when braking suddenly

Images