MacPherson independent suspension front axle assembly with circulating ball steering mechanism

Abstract

A MacPherson independent suspension front axle assembly with a circulating ball steering mechanism comprises a circulating ball power-assisted steering device, a steering driving mechanism, a MacPherson independent suspension and a hydraulic disc brake system. The circulating ball power-assisted steering device is arranged on a frame and connected with the MacPherson independent suspension through the steering drive mechanism which is a broken type steering trapezium mechanism. The MacPherson independent suspension comprises a transverse stabilization system. The hydraulic disc brake system is provided with an ABS device. The front axle assembly fills in the blank of adopting the MacPherson independent suspension system and the circulating ball power-assisted steering device steering system which are matched for domestic light commercial vehicles, the front steering trapezium is large in steering power assistance, and ride comfort and controllability of vehicles are improved.

Description

technical field [0001] The invention relates to the technical field of steering front axle assembly, in particular to a recirculating ball steering mechanism MacPherson independent suspension front axle assembly. Background technique [0002] The school bus market in our country has a broad prospect. With the occurrence of school bus overloading accidents one after another, the country has promulgated many mandatory regulations, and the demand for school bus safety, handling stability and driving comfort continues to increase. At the same time, with the development of urban logistics, the demand for light-duty logistics vehicles in cities has increased sharply. In addition to meeting the demand for cargo, light-duty logistics vehicles have also continuously improved their comfort requirements. At present, the leaf spring non-independent suspensions used in these two types of commercial vehicles in China can no longer meet the requirements of ride comfort and handling stabili...

AI Technical Summary

Problems solved by technology

At present, the leaf spring non-independent suspensions used in these two types of commercial vehicles in China can no longer meet the requirements for ride comfort and handling stability. At the same time, the rack and pinion steering front axle used by passenger vehicles cannot meet the layout and load requirements. Require

[0003] At present, the chassis assembly system of school buses and light trucks basically uses non-independent suspension and integral steering trapezoidal mechanism. The traditional leaf spring non-independent suspension front axle assembly has poor ride comfort and handling stability.

There are also some school buses and light trucks that use MacPherson independent suspension with rack and pinion steering mechanism. However, due to insufficient steering force, large difference from the previous steering arrangement, and high maintenance costs, it is difficult to use MacPherson independent suspension. Promoted on the above two types of models

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