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Multi-link straight line guide independent suspension with 3-RRR telescopic compensation mechanism

A compensation mechanism, independent suspension technology, applied in the direction of suspension, elastic suspension, cantilever mounted on the pivot, etc., can solve the problem of poor bending stiffness, large sliding friction at the moving pair, and unsuitable for suspension guide mechanism and other problems, to achieve the effect of reducing wear, convenient assembly and adjustment, and improving handling stability.

Active Publication Date: 2013-11-13
WANXIANGQIANCHAO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The suspension branch chains in the above patents [1] and [2] are all RRR kinematic chains, and their bending stiffness is poor along the direction perpendicular to the plane determined by the RRR kinematic chain; the suspension branch chains in patent [3] are RPR kinematic chains , has good stiffness in all directions, but the RPR kinematic chain is not suitable for use as a suspension guiding mechanism due to the large sliding friction at the moving pair due to the existence of the moving pair

Method used

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  • Multi-link straight line guide independent suspension with 3-RRR telescopic compensation mechanism
  • Multi-link straight line guide independent suspension with 3-RRR telescopic compensation mechanism
  • Multi-link straight line guide independent suspension with 3-RRR telescopic compensation mechanism

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: as figure 1 , this kind of multi-link linear guide independent suspension with 3-RRR telescopic compensation mechanism, including wheel 1, body or frame 6, spring damper system 4 and steering knuckle 2, said steering knuckle 2 passes through the hub The unit is connected with the wheel 1, and the spring damper system 4 is respectively connected with the steering knuckle 2 and the vehicle body or frame 6 through the ball joint, and also includes four suspension branch chains, which are respectively the first suspension branch chain 3a on the upper side, The second suspension branch chain 3b on the upper side, the first suspension branch chain 5a on the lower side, and the second suspension branch chain 5b on the lower side; the suspension branch chains all include an inner connecting rod 7 and an outer connecting rod 9 Three identical RRR kinematic chains composed of three rotating pairs, referred to as 3-RRR mechanism, and three identical RRR kinematic cha...

Embodiment 2

[0146] Embodiment 2: The suspension mechanism adds a branch chain on the basis of Embodiment 1, and the vertical plane where the added suspension branch chain is located coincides with or is parallel to the vertical plane where other suspension branch chains are located. , increased the strength and rigidity of the mechanism, and the rest of the structure is the same as in Example 1.

Embodiment 3

[0147] Embodiment 3: The suspension mechanism adds two branch chains on the basis of embodiment 1, and the vertical plane where the added suspension branch chains are located coincides with the vertical plane intersection lines where other suspension branch chains are located or Parallel increases the strength and rigidity of the mechanism, and the rest of the structure is the same as in Embodiment 1.

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Abstract

The invention relates to a multi-link straight line guide independent suspension with a 3-RRR telescopic compensation mechanism. The suspension comprises a vehicle wheel, a vehicle body or a vehicle frame, a spring shock absorber system and a steering knuckle, wherein the steering knuckle is connected with the vehicle wheel through a hub unit; the spring shock absorber system is respectively connected with the steering knuckle and the vehicle boy or the vehicle frame through a ball pair; the suspension also comprises four suspension branched chains; each suspension branched chain comprises an inside link, an outside link and three same RRR kinematic chains formed by three rotating pairs; and the three same RRR kinematic chains are arranged along the axis of a suspension branched chain symmetrically at an angle of 120 degrees. By using the suspension, positioning parameters such as a vehicle wheel camber angle, a kingpin inclination angle, a kingpin caster angle, a vehicle wheel toe-in (toe-out), the distance between left and right wheels, wheel base and the like are remained unchanged all the time during a bouncing up and down process of the vehicle wheel, so that the abrasion of tires is reduced effectively, and the vehicle handling stability, the driving smoothness and the riding comfort degree can be improved effectively.

Description

technical field [0001] The invention relates to an automobile suspension system, in particular to a multi-link linear guide independent suspension with a 3-RRR telescopic compensation mechanism. Background technique [0002] Suspension is a general term for devices that ensure the elastic connection between the wheel or axle and the vehicle's load-carrying system (frame or load-bearing body) and can transmit loads, ease shocks, attenuate vibrations, and adjust the position of the vehicle body during driving. Generally, the suspension is mainly composed of three parts: elastic elements, shock absorbers and guide mechanisms. In some cases, a certain component plays two or three roles, such as a leaf spring that also acts as an elastic element and a guiding mechanism. The function of the guide mechanism is to ensure reliable transmission of all forces and moments between the wheel and the body or frame, and to determine the displacement characteristics of the wheel relative to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G3/26
CPCB60G3/26B60G7/008B60G2200/18B60G2200/46B60G2200/462B60G2204/148B60G2206/11
Inventor 资小林赵景山张杰刘向邱宝象冯之敬
Owner WANXIANGQIANCHAO CO LTD
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