Five-shaft heavy-duty car steering system

Abstract

The invention relates to a steering system for a five-axle heavy duty car. The forward-rotation output shaft of a right angle gear box is connected with the input end of a front steering gear through the transmission shaft of a first front axle, the output end of the front steering gear is hinged with the middle part of a driving arm, the lower end of the driving arm is connected with a steering arm on a first wheel hub through the longitudinal tie of a first front axle, the upper end of the driving arm is connected with the upper end of an oscillating arm through the upper tie rod of a second front axle, the middle part of the oscillating arm is hinged on a longitudinal beam, and the lower end of the oscillating arm is connected with a steering arm on a second wheel hub through the longitudinal tie of a second front axle; after being decelerated, the backward-rotation output shaft of the right angle gear box is connected with the input end of a rear steering gear through a transmission shaft mechanism, and the output end of the rear steering gear is connected with a steering arm on a fifth wheel hub through the longitudinal tie of a fifth axle. The transmission part of the steering system is under very small stress, the flexibility and the reliability of steering can be guaranteed, the operation is labor saving, and the steering system has the advantages of simple structure, easy assembly, light overall weight, low consumption of materials and low production cost.

Description

technical field [0001] The invention relates to a steering device of an automobile, in particular to a steering system of a five-axle heavy-duty automobile. Background technique [0002] At present, four-axle heavy-duty vehicles usually use the first and second axles to steer, and the steering control and steering assist mechanisms are better designed and installed. For heavy-duty vehicles with five or more axles, in order to reduce the steering radius, in addition to the steering of the first and second axles, the fifth axle or the fourth and fifth axles also use a steering axle. In order to reliably realize the power steering control of the fifth bridge or the fourth and fifth bridges, there are mainly two methods as follows: [0003] 1. Swing arm tie rod serial connection type hydraulic power steering mechanism [0004] The steering control and steering assist mechanism of the fourth axle or the fourth and fifth axles of a five-axle heavy-duty vehicle usually adopts a h...

AI Technical Summary

Problems solved by technology

[0007] (1) The transmission part is stressed, the flexibility and reliability of the steering are poor, and the operation is laborious

[0008] (2), complex structure, difficult assembly, heavy overall weight, high material consumption and high production cost

However, the structure of this mechanism is complicated and the cost is expensive. At present, domestic automobile manufacturers have no vehicles to adopt it.

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