Multi-axle steering mechanism and structure parameter determination method thereof

A steering mechanism and multi-axis steering technology, which is applied to steering mechanisms, steering rods, vehicle components, etc., can solve problems such as complex structure of multi-axis steering mechanisms, inapplicability to multi-axis steering vehicles, and difficulty in parameter determination, achieving simple structure, The effect of reliable performance and simple design method

Inactive Publication Date: 2020-01-21
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] This patent basically realizes the multi-axis steering of multi-axis vehicles in terms of function, but its working principle is complex, the mechanism is cumbersome, multiple steering cylinders are needed, the design process is complicated, the calculation is large, and there is no certain versatility, so it is not applicable Compatible with most multi-axle steerable vehicles
[0005] Therefore, the problems existing in the prior art are: the structure of the multi-axis steering mechanism is complicated, and the parameters are difficult to determine

Method used

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  • Multi-axle steering mechanism and structure parameter determination method thereof
  • Multi-axle steering mechanism and structure parameter determination method thereof
  • Multi-axle steering mechanism and structure parameter determination method thereof

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example 1

[0073] This implementation is a multi-axis steering mechanism and its parameter determination method. The parameter determination of the multi-axis steering mechanism is divided into the determination of the geometric parameters of the hydraulic mechanism rods, the determination of the geometric parameters of the front rods, the determination of the geometric parameters of the middle rods, and the determination of the rear rods. The geometric parameters are determined. It is achieved by the following steps:

[0074] Step 1: Calculate the limit rotation angles of each wheel α1 (right front wheel) 50.43°, α2 (right middle wheel) 43.156°, α3 (right rear wheel ) 33.63°, β1 (left front wheel) 42.95°, β2 (left middle wheel) 35.81°, β3 (left rear wheel) 27.1°.

[0075] Step 2: Draw half of the hydraulic mechanism of the rod-based mechanism separately, set the rotation angle of the middle lever to 30° when the left part of the hydraulic mechanism changes from the static equilibrium s...

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Abstract

The invention discloses a multi-axle steering mechanism and a structure parameter determination method of the multi-shaft steering mechanism. The multi-axle steering mechanism is simple in structure,easy to design and small in calculation amount. The multi-axle steering mechanism is used for being fixed on a vehicle frame (5) and driving wheels to steer, and the vehicle frame (5) comprises left,middle and right longitudinal beams (51, 52 and 53), front and rear transverse beams (54 and 57), at least a first intermediate transverse beam (55) and a second intermediate transverse beam (56). Anintermediate hydraulic lever mechanism (1), a front section steering mechanism (2), a middle section steering mechanism (3) and a rear section steering mechanism (4) which are arranged on the vehicleframe (5) are further included. The structure parameter determination method of the multi-shaft steering mechanism comprises the following steps of (10) determining the geometrical parameters of a hydraulic mechanism rod, (20) determining the geometrical parameters of a front section rod, (30) determining the geometrical parameters of a middle section rod and (40) determining the geometrical parameters of a rear section rod.

Description

technical field [0001] The invention belongs to the technical field of automobile steering mechanisms, in particular to a multi-axis steering mechanism and a method for determining structural parameters thereof. Background technique [0002] The steering mechanism of an automobile directly affects the driver's grasp of the direction during the steering process of the vehicle, which affects the steering accuracy at the slightest level, and directly poses a certain threat to the life safety of the vehicle and the driver at the worst. In the steering of multi-axle vehicles, it is necessary to ensure that the steering angles of the wheels on the left and right sides are different, and it must also conform to the steering principle of the Akaman car. This has very high requirements for the design of the steering system. Most of the multi-axle vehicles currently in use use a combination of electromechanical and hydraulic systems. Steering system, this type of steering system has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D7/15
CPCB62D7/1536
Inventor 王良模张金成孙鹏程王陶
Owner NANJING UNIV OF SCI & TECH
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