Hydraulic power-assisted chassis axle steering system

Abstract

The invention discloses a hydraulic power-assisted chassis axle steering system. The hydraulic power-assisted chassis axle steering system comprises a left steering knuckle, a right steering knuckle and a brake, wherein the left steering knuckle and the right steering knuckle are mounted on a chassis; the brake is used for performing braking a wheel hub; trapezoid arms are respectively connected to connecting supporting points of the left steering knuckle and the chassis, and of the right steering knuckle and the chassis; a steering knuckle arm is also connected to the connecting support point of the left steering knuckle; the trapezoid arms are connected through a cross bar assembly; a roller is arranged at the middle part of the cross bar assembly; an arc sliding groove is formed in a position, corresponding to the roller, of the chassis; a steering drag link is connected to the other end of the steering knuckle arm, and connected to the brake through a steering rocker arm; the trapezoid arms and the steering drag link adopt a structure with the disconnected middle; and a trim mechanism is mounted at the disconnected part. The hydraulic power-assisted chassis axle steering system disclosed by the invention has the advantages of being reliable in performance, simple in structure, symmetric and artistic, uniform in stress, free from error and the like; and through the trim mechanism disclosed by the application, the exchanging number of times can be reduced, so that the steering accuracy is guaranteed.

Description

Technical field: [0001] The invention relates to the field of automobile components, and mainly relates to a hydraulic power-assisted chassis axle steering system. Background technique: [0002] The traditional chassis axle steering system is composed of some parallel rods, which is equivalent to the trapezoidal mechanism of the four-bar mechanism. It has the advantages of reliable performance, stable operation, simple structure, easy manufacture, symmetrical appearance, and balanced force. However, there will be steering errors in the steering, which cannot achieve accurate errors; at the same time, the long-term use of the steering mechanism will cause slight deformation or loosening of the connecting rod structure, which will affect the steering error, and it will also exist if it is replaced. error, and caused a waste of resources; in order to further reduce the error and facilitate steering control, the wheels can be increased. When meeting the demand for increased tire...

AI Technical Summary

Problems solved by technology

[0002] The traditional chassis axle steering system is composed of some parallel rods, which is equivalent to the trapezoidal mechanism of the four-bar mechanism. It has the advantages of reliable performance, stable operation, simple structure, easy manufacture, symmetrical appearance, and balanced force. However, there will be steering errors in the steering, which cannot achieve accurate errors; at the same time, the long-term use of the steering mechanism will cause slight deformation or loosening of the connecting rod structure, which will affect the steering error, and it will also exist if it is replaced. error, and caused a waste of resources; in order to further reduce the error and facilitate steering control, the wheels can be increased. When meeting the demand for increased tires, such as: the tire size is increased from 17 inches to 18 inches, the tire envelope Various problems such as interference with the front knuckle neck need to be improved

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