Middle supporting shaft assembly for vehicle

Abstract

The invention relates to a middle supporting shaft assembly for a vehicle and belongs to the technical field of automobile parts. The middle supporting shaft assembly comprises a shaft beam assembly. The shaft beam assembly comprises a camber beam, a shaft tube and a shaft head. The camber beam is located in the middle of the shaft beam assembly and connected with a single-air-bag lifting support, and the shaft head is located at the end of the shaft beam assembly and connected with an active steering mechanism. The middle supporting shaft assembly has the advantages that the segmented structure and the single-air-bag lifting structure are adopted, the structure of a lifting system can be simplified, active steering can be achieved, tire abrasion can be reduced, and the performance of the whole supporting shaft assembly is improved.

Description

technical field [0001] The invention relates to a vehicle center support shaft assembly, which belongs to the technical field of auto parts and is especially suitable for commercial vehicle transmission systems. Background technique [0002] In recent years, with the increase of automobile fuel prices and the increasing emphasis on environmental protection, commercial vehicle users have higher and higher requirements for vehicle lightweight and fuel-saving performance. Therefore, the liftable support shaft is applied to heavy trucks. The reason is that, under no-load or light-load conditions, after the support shaft is lifted, running resistance can be reduced, tire wear can be reduced, fuel consumption can be reduced, and ride comfort of the vehicle can be improved; and, due to no-load or light-load After the supporting shaft is lifted, the pressing force of the drive axle to the ground can be increased, and the adhesion between the wheel and the ground can be improved. ...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used lifting shafts mainly have the following problems: 1. Most of the common lifting shafts use the four-link guide mechanism to carry out the lifting operation. There are many disadvantages such as large number of parts, complicated manufacturing, high cost, and difficult maintenance; 2. Most of the existing lifting shafts adopt follow-up steering structure, which has a large turning radius and serious tire wear; 3. Most of the existing lifting shafts are equipped with steel plates The spring suspension cannot well isolate the impact, vibration and noise of the road surface, and it is increasingly unable to meet the needs of commercial vehicle users in terms of vehicle comfort, handling and safety.

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