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Steering system of a vehicle with variable wheel base

A steering system and variable wheelbase technology, applied in vehicle components, steering mechanisms, steering rods, etc., can solve problems such as the inability to meet the steering requirements of variable wheelbase vehicles

Active Publication Date: 2016-07-06
青岛精宇智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the length of each link of the Ackerman trapezoidal steering mechanism is fixed, its steering characteristics cannot be changed. Therefore, the current domestic mechanical steering system generally cannot meet the steering requirements of variable wheelbase vehicles.

Method used

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  • Steering system of a vehicle with variable wheel base
  • Steering system of a vehicle with variable wheel base
  • Steering system of a vehicle with variable wheel base

Examples

Experimental program
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Embodiment Construction

[0028] The preferred embodiments of the invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, so as to define the protection scope of the invention more clearly.

[0029] The variable wheelbase steering system of the present invention is mainly composed of a steering unit 10 with variable parameters and a series of linkage mechanisms. Geometry of rod mechanisms.

[0030] Such as figure 1 Shown is the schematic diagram of the steering system mechanism of the present invention, the drive axle 1 and the cross drive axle 2 are hinged to each other at the OC point with their respective midpoints, and the OC point is located on the main frame 25 of the vehicle. According to the geometric principle, changing the angle θ between the two drive axles will change the wheelbase b and wheelbase 1, that is, increasing the angle θ will increase...

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Abstract

The invention relates to a steering system of a vehicle with variable wheelbase, comprising a drive axle, a cross drive axle, a vehicle main frame, a steering unit and a steering linkage mechanism; The central hinge mechanism, the drive axle and the cross drive axle are installed on the kingpin shaft of the frame, the kingpin shaft of the frame is a hollow shaft, the main shaft of the steering power arm passes through the kingpin shaft of the frame and is connected to the steering gear, so The steering unit and the steering link mechanism are installed on the drive axle or the cross drive axle; the steering link mechanism and the steering unit are installed in cooperation; the present invention utilizes the structural layout characteristics of the cross axle and its variable wheelbase characteristics to convert the The Keman trapezoidal steering mechanism is designed as an independent steering unit. It realizes the steering of the vehicle through a series of linkage mechanisms. By changing the structural parameters of the above steering unit, its steering characteristics are changed to meet the steering requirements under all wheelbase conditions.

Description

technical field [0001] The invention relates to a steering system of a vehicle with a variable wheel base, in particular to a mechanical steering system of an agricultural vehicle chassis with drive axles in a cross-arranged form and with an adjustable wheel base, and belongs to the technical field of vehicle steering control. Background technique [0002] As we all know, the vehicle needs to turn during driving; when the vehicle turns, in theory, to make each wheel only roll and not slide, each wheel must roll around the same center point O, that is, the deflection angle of the steering wheel satisfies the Ackermann steering principle, that is, the outside The cotangent value of the deflection angle of the steered wheel is equal to the cotangent value of the deflection angle of the inner steered wheel plus the ratio of the wheelbase to the wheelbase (cotα=cotβ+b / l, where α and β are the deflection angles of the outer and inner wheels respectively ; b is the distance between...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D7/16B62D7/18B62D7/00
Inventor 孟广耀黄居鑫孟昭渝溪陈晓维王龙李雪莱韩国旭李华廷
Owner 青岛精宇智能科技有限公司
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