Single-axle four-air-bag air suspension

Abstract

The invention relates to the technical field of air bag air suspensions, and in particular relates to a single-axle four-air-bag air suspension which comprises a chassis, an upper connecting seat, air bags, supporting mechanisms, hinge seats, supporting plates, a bearing shaft and U-shaped hoops, the two ends of the bearing shaft are fixedly connected with the two sets of supporting plates through the U-shaped hoops, the two ends of the supporting plates are hinged to the supporting mechanisms with a protection function through two sets of hinge seats, the air bags are arranged on the supporting mechanisms, one end of each air bag is connected with the chassis through the upper connecting seat, the upper connecting seat pulls mesh cloth, the mesh cloth moves to drive a first pin roller and a second pin roller to move, and the first pin roller rotates to enable a coil spring in a coil spring device to deform; when the air bags are deflated, as the chassis descends, under the action of the coil spring in the coil spring device, the first pin roller rotates reversely, the mesh cloth is stuffed into a retracting and releasing groove through reverse rotation of the first pin roller; in conclusion, with setting of the mesh cloth, in the running process of the vehicle, the air bags are prevented from being damaged by broken stones, the protection effect on the air bags is achieved, and then when the air bags are not used, the mesh cloth can be automatically retracted.

Description

technical field [0001] The invention relates to the technical field of airbag air suspension, in particular to a single-axle four-airbag air suspension. Background technique [0002] Currently. The development trend of tractor chassis is: lightweight and low cost. In this context, electronically controlled air suspensions and composite air suspensions have appeared in domestic and foreign markets, which are mainly used in 4×2 and 6×4 tractors. Most of the 6×2 tractors use traditional leaf springs to match double front axles and rear drive axles. The leaf spring suspension system is heavy, costly, and poor in comfort. [0003] The existing airbag air suspension is directly connected to the chassis of the tractor, one end of the airbag is connected to the suspension, and the other end of the airbag is connected to the chassis of the tractor. During the use of the tractor, the airbag will be squeezed by forces in different directions, so that the airbag The torn between the ...

AI Technical Summary

Problems solved by technology

Most of the 6×2 tractors use traditional leaf springs to match the layout of double front axles and rear drive axles. The leaf spring suspension system is heavy, costly, and poor in comfort.

[0003] The existing airbag air suspension is directly connected to the chassis of the tractor, one end of the airbag is connected to the suspension, and the other end of the airbag is connected to the chassis of the tractor. During the use of the tractor, the airbag will be squeezed by forces in different directions, so that the airbag The torn between the chassis and the suspension of the vehicle will easily cause breakage between the airbag and the chassis of the tractor, and at the same time reduce the service life of the airbag. Secondly, when the tractor is driving, when the stone is crushed, the broken stone is easy to cut Injury air bag, for this reason, the present invention proposes a kind of single axle four air bag air suspension to be used for solving the above-mentioned problem

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