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Car steering linkage mechanism

A steering transmission, automobile technology, applied in the direction of mechanical steering gear, etc., can solve the problems of tire wear, inaccurate turning, no turning center, etc.

Inactive Publication Date: 2009-08-26
闫成贵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the steering system of existing automobiles adopts the isosceles trapezoidal double rocker mechanism - the Ackermann mechanism, which cannot guarantee that the intersection point of the steering wheel axis at any steering angle falls on the extension line of the rear wheel axis, that is, it does not turn Center, the turning is not precise, the tire and the road surface will slide sideways, this kind of sliding becomes a safety hazard, when the speed is fast, the car may overturn, and the sliding will also increase the wear of the tire and reduce the service life

Method used

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  • Car steering linkage mechanism
  • Car steering linkage mechanism
  • Car steering linkage mechanism

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0046] see figure 1 , figure 2 , Figure 6 ( Figure 7 , Figure 8 , Figure 11 , Figure 12 , Figure 13 Several working states of this mechanism are shown in the figure): the steering transmission mechanism of this automobile includes a frame 1 and an input pinion shaft 2 arranged on the frame 1, an intermediate gear 3, a rack 4, a pair of telescopic sleeves Combine rocker 6 and output shaft 8 thereof, a set of parallelogram double rocker mechanism.

[0047] The input pinion shaft 2, the intermediate gear 3, and the rack 4 are sequentially meshed; the frame 1 has a guide groove of the rack 4, and the rack 4 slides longitudinally with the guide groove; the back of the rack 4 has a hinge seat 5, and the hinge The seat 5 is located at the midpoint of the rack 4, and a pair of output shaft hinge seats 7 are arranged on the frame 1 symmetrically with respect to the center line of the frame, and its center line is parallel to the rack 4; one end of the two telescopic sleev...

example 2

[0095] see image 3 , Figure 4 , Figure 9 , Figure 10 : The difference with Example 1 is that the back of the rack 4 has a pair of hinge seats 5, which are symmetrically arranged relative to the midpoint of the rack; one end of the two telescopic sleeve rockers 6 is respectively hinged on the two hinge seats 5 on the back of the rack , the other ends are respectively hinged on the two hinge seats 7 on the frame, and the hinge shaft is the output shaft 8, which is fixedly connected with the telescopic sleeve rocker 6. When the car is running straight, the connection of the four hinge points The line is an isosceles trapezoid, and the isosceles triangle formed by the extension and intersection of the two legs of the isosceles trapezoid also satisfies the relational formula: a / b=0.5˜2A / B. The rest are the same as example one.

[0096] From Figure 5 , Figure 9 , Figure 10 It can be seen that the function and principle of this example are also the same as those of Exam...

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Abstract

The invention discloses a car steering linkage mechanism, comprising a machine rack and an input gear shaft, a middle gear, a rack, a pair of telescopic sleeved rockers and output shafts thereof and a parallelogram double-rocker mechanism which are arranged on the machine rack; the input gear shaft, the middle gear and the rack are sequentially meshed; the machine rack is provided with a guide groove for the rack, and the rack and the guide groove are in the longitudinal slide fit; one or two hinged supports are arranged on the back surface of the rack, a pair of output shaft hinged supports are arranged on the machine rack and symmetrically arranged relative to the central line of the machine rack, and the central connecting line thereof is parallel to the rack; one end of each telescopic sleeved rocker is hinged on the hinged supports on the back surface of the rack, the other end of each is respectively hinged on the two hinged supports on the machine rack, a hinge shaft thereof is the output shaft, and the output shaft is fixedly connected with the telescopic sleeved rockers; when a car is in straight driving, the connection lines of all the hinge points show an isosceles triangle or an isosceles trapezoid. The car steering linkage mechanism can lead an intersection point of shaft lines of steering wheels to be always positioned on an extension line of the shaft lines of rear wheels, thereby leading four tires to roll on road surface without slip.

Description

technical field [0001] The invention relates to a direction control device of an automobile, in particular to a steering transmission mechanism of the device. Background technique [0002] When the car is turning, it is theoretically required that each wheel only rolls and does not slide, and each wheel must roll around the same center point. Obviously, this center point must fall on the extension line of the center line of the rear axle, and the left and right front wheels must also be in the same direction. This point is the center of the circle. But the steering system of existing automobiles adopts the isosceles trapezoidal double rocker mechanism - the Ackermann mechanism, which cannot guarantee that the intersection point of the steering wheel axis at any steering angle falls on the extension line of the rear wheel axis, that is, it does not turn In the center, the turning is inaccurate, and the tires and the road surface will slide sideways. This kind of sliding beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/12
Inventor 闫成贵
Owner 闫成贵
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