Damping device and engineering vehicle

Abstract

The invention relates to a damping device and an engineering vehicle. The damping device comprises a housing (6) and a rubber spring; the rubber spring comprises a mandrel (1) and a rubber body (2) which surrounds the periphery of the mandrel (1) in a fitted mode; the rubber spring is at least partially arranged in the housing (6); a first cavity (8) is formed between the bottom of the rubber spring and the inner wall of the housing (6); the outer end of the mandrel (1) is connected with a vibration isolation object; the housing (6) is connected with a fixed basal body; the inner end of the mandrel (1) is connected with a first elastic structure arranged in the first cavity (8); and / or a second elastic structure is arranged in the rubber body (2). According to the damping device, other elastic structures are organically combined with the rubber spring in structure, and another elastic structure is additionally arranged to further absorb vibration on the basis of adopting the rubber spring to damp, so that the vibration isolation efficiency can be improved, and therefore, vibration generated by the vibration isolation object is isolated more effectively.

Description

technical field [0001] The invention relates to the technical field of engineering vehicles, in particular to a vibration damping device and an engineering vehicle. Background technique [0002] Engineering vehicles, such as excavators, road rollers, loaders, graders, etc., have been widely used in construction sites such as construction, roads, mines, ports, etc. Due to the poor road conditions and working environment of the workplace, engineering vehicles are in the process of working In the middle, it is often accompanied by a huge instantaneous impact, resulting in low-frequency vibration and shaking. As the group of construction machinery drivers continues to expand, their requirements for the working environment are also increasing, which puts forward higher requirements for the comfort of the cab. [0003] In order to isolate the cab of engineering vehicles, shock absorbers are generally used to block and weaken the vibration energy transmitted from the frame to the ...

AI Technical Summary

Problems solved by technology

[0006] (1) The vibration cannot be effectively isolated, and the problem of low-frequency shaking of the cab during the working process of the construction vehicle is not fundamentally solved;

[0007] (2) The rigidity of this kind of silicone oil shock absorber is fixed, it is difficult to meet the needs of complex working conditions of engineering vehicles, especially during operation, and it is difficult to maximize the comfort of engineering vehicles

[0008] (3) The dynamic characteristics of the silicone oil shock absorber are greatly affected by temperature, and its stiffness and damping decrease with the increase of temperature. When the silicone oil shock absorber works under heavy load and large impact for a long time, the vibration isolation effect will decrease significantly

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