Hydraulic bidirection return stroke damper

Abstract

The hydraulic bidirectional return stroke damper consists of three kinds of hydraulic cylinder, including vibration cylinder, compression cylinder and extending cylinder, mutually communicated through pipeline with non-return valve. The vibration cylinder is provided with piston and piston rod, and each of compression cylinder and extending cylinder is provided with piston and elastic element. When the wheel accepts upward shock and vibration, some of the non-return valves is opened for oil to flow fast from the vibration cylinder to the compression cylinder, and when the wheel stops ascending, the valve is closed and oil can return to the vibration cylinder slowly only through the small hole. Similarly when the wheel moves downwards, the other non-return valve acts. In this way, the present invention realizes bidirectional return stroke damping.

Description

technical field [0001] The invention relates to a damping device, in particular to a hydraulic two-way return damping damper used in various vehicles. Background technique [0002] At present, various vehicles use damping elements and shock absorbers in order to reduce vibration during driving, such as leaf springs, springs, spring-air damping shock absorbers, hydraulic shock absorbers, oil-gas combination shock absorbers, etc. . According to whether there is damping, it can be divided into two categories, that is, non-damping shock absorbers and damping shock absorbers. The undamped shock absorber has a fast response speed when encountering impact vibration, but it also resets quickly, and can cause chatter or even resonance, and the vibration reduction effect is obviously not good. The shock absorbers that have been used or known are basically damping shock absorbers. The principle of shock absorption is to use the friction force of the damping element or the damping for...

AI Technical Summary

Problems solved by technology

The non-damping shock absorber has a fast response speed when encountering impact vibration, but the reset is also fast, and it can cause chatter or even resonance, and the vibration reduction effect is obviously not good

The shock absorbers that have been used or known are basically damping shock absorbers. The principle of shock absorption is to use the friction force of the damping element or the damping force when the oil passes through the small hole to prevent the stretching and compression of the elastic element. , to absorb the energy of vibration, the advantage is that after the wheel is impacted and vibrated, the wheel resets slightly slower, and the disadvantage is that when the wheel is impacted and vibrated, because the shock absorber damps the stretching and compression of the elastic element, the first vibration feeling is on the contrary. Undamped shock absorbers are more pronounced

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