Height adjusting mechanisms for air suspensions of automobile

Abstract

The invention relates to height adjusting mechanisms for air suspensions of an automobile. The height adjusting mechanisms are sensitive to height change of the suspensions of the automobile, facilitate adjustment and enable the left and right air suspensions to be at the same height. Each mechanism comprises a height valve, a horizontal oscillating bar and a vertical rod assembly, wherein the vertical rod assembly comprises a straight rod and a hinge sleeve nested at one end of the straight rod. Each height adjusting mechanism further comprises a lower bracket assembly and a swaying block nested on the straight rod. At least two through holes are formed in the middle of each swaying block, and a groove is formed in the bottom of the swaying block; an adjusting nut is arranged in each groove, threads are formed in the other end of each straight rod, and the adjusting nut is nested at the thread end; each lower bracket assembly comprises an L-shaped rod and an L-shaped bracket, the L-shaped bracket is fixed on an axle tube press plate, the free end of the L-shaped bracket is movably connected with the first rod end of the L-shaped rod, accordingly, the L-shaped rod can vertically move relative to the L-shaped bracket, and the second rod end of the L-shaped rod penetrates into one of the through holes in the swaying block.

Description

technical field [0001] The invention relates to a height adjustment structure, in particular to a height adjustment mechanism for adjusting an automobile air suspension. Background technique [0002] In the prior art, there are two ways to adjust the height of the air suspension: an electronic ECAS control system and a mechanical height valve control mechanism. The electronic ECAS control system is expensive and inconvenient to maintain because most of the core components need to be imported. The existing mechanical height valve linkage adjustment mechanism generally includes: a height valve fixed on the vehicle frame, a sway bar connected with the height valve and a vertical rod assembly, and one end of the vertical rod assembly can be moved through the hinge sleeve and the yaw rod. It is connected by rotation, and the other end is connected with the bridge tube pressure plate through a Z-shaped bracket. With this kind of structure, since the connecting parts of the conne...

AI Technical Summary

Problems solved by technology

With this structure, since the connecting parts of the connecting rods are mostly connected by rubber hinges, the relative rotation of each rod is inflexible, the response to the beating of the suspension is not sensitive, and it is difficult to adjust the height of the left and right suspensions to be consistent.

When the length of the vertical rod assembly is adjusted, the straight rod in the vertical rod assembly needs to be pulled out directly from the rubber hinge by hand, and there are often parts such as tires, fenders and shock absorbers around the height valve connecting rod. The working space is narrow, so the operation is difficult when the vehicle is off-line and debugged, which seriously affects the debugging effect and production efficiency

Images