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Hydro-pneumatic spring, wheel steering mechanism, wheel and electromobile

A technology of oil-gas spring and steering mechanism, which is applied to steering mechanism, power steering mechanism, electric steering mechanism, etc., can solve problems affecting handling stability, etc. Effect

Pending Publication Date: 2018-05-04
武汉梦马易腾智能汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the side slip angle of the tire, it will cause sideways friction between the tire and the ground, and affect the handling stability

Method used

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  • Hydro-pneumatic spring, wheel steering mechanism, wheel and electromobile
  • Hydro-pneumatic spring, wheel steering mechanism, wheel and electromobile
  • Hydro-pneumatic spring, wheel steering mechanism, wheel and electromobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 , this embodiment provides an oil and gas spring, including an oil cylinder, a guide shaft 3, a damping plate 4 and a floating piston 5;

[0037] The oil cylinder includes a cylinder tube 1 and a hollow piston rod 2. The top end of the piston rod 2 is slidably arranged in the cylinder tube 1 and the bottom end is located outside the cylinder tube 1. The inner cavity of the piston rod 2 is connected to the cylinder tube 1. The oil cavity of the cylinder barrel 1 is conducted through the oil passage hole opened at the top of the piston rod 2;

[0038] The guide shaft 3 is coaxially fixed on the top of the cylinder 1 and the bottom end extends into the inner cavity of the piston rod 2; the damping plate 4 is embedded and slidably installed in the inner cavity of the piston rod 2 and It is fixedly connected with the bottom end of the guide shaft 3, and a damping oil passage is arranged on the damping plate 4;

[0039] The floating piston 5 is slidably arrang...

Embodiment 2

[0049] like figure 1 , an embodiment of the present invention provides a steering mechanism for a wheel, including the oil and gas spring provided in the above-mentioned first embodiment, wherein the guide shaft 3 is a spline shaft 3 and is splined with the top end of the piston rod 2, that is, in the The top end of the piston rod 2 is provided with a piston rod spline sleeve 22 , the spline shaft 3 is penetrated on the cylinder barrel 1 and the top end is connected with a driving unit for driving it to rotate around its own axis.

[0050] Continuing the steering mechanism of the above-mentioned wheels, such as figure 1 , the drive unit includes a drive motor 61, a steering worm gear 63 and a steering worm 62, the steering worm gear 63 is coaxially sleeved with the spline shaft 3, and the steering worm 62 meshes with the steering worm gear 63 and is The drive motor 61 is connected. Since the driving motor 61 controls the steering of the wheel through the steering worm 62 and...

Embodiment 3

[0054] like figure 1 , the present invention also provides a wheel, including a wheel body 73, a wheel axle 72 and a wheel axle seat 71, the wheel axle 72 is mounted on the wheel axle seat 71 and connected with the wheel body 73, and also includes the above embodiments 2. The steering mechanism of the wheels provided.

[0055] The axle seat 71 includes a vertical section 712 for connecting with the wheel axle 72 and a horizontal section 711 connected to the top of the vertical section 712 and extending toward the outside of the vehicle body. The bottom end of the piston rod 2 is connected to the The top of the horizontal section 711 is fixedly connected. Preferably, the vertical section 712 and the horizontal section 711 are both disc-shaped structures; in the above-mentioned embodiment provided with the piston rod lower seat 21, the piston rod lower seat 21 is fixedly connected to the horizontal section 711, such as by Bolts, etc. Further preferably, a vertical load sensor...

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Abstract

The invention provides a hydro-pneumatic spring, a wheel steering mechanism provided with the hydro-pneumatic spring, a wheel provided with the wheel steering mechanism and an electromobile adopting the wheel. The hydro-pneumatic spring comprises an oil cylinder, a guide shaft, a damping plate and a floating piston. The oil cylinder comprises a cylinder barrel and a hollow piston rod communicatingwith an oil cavity of the cylinder barrel. The guide shaft is coaxially fixed to the top of the cylinder barrel, and the bottom end of the guide shaft stretches into an inner cavity of the piston rod. The damping plate is arranged in the inner cavity of the piston rod in a sliding manner and is fixedly connected with the bottom end of the guide shaft. A damping oil passing channel is arranged onthe damping plate. The floating piston is arranged in the inner cavity of the piston rod in a sliding manner and located below the damping plate, and the inner cavity of the piston rod is divided intoan upper oil chamber and a lower gas chamber. Through the division function of the floating piston and the damping function of the damping plate, based on the compression or expansion effect of relation motion between the piston rod and the cylinder barrel on the gas chamber, it can be guaranteed that a good elastic damping effect can be achieved in the automobile running process, and the automobile operation stability can be improved.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and more particularly relates to an oil-gas spring, a wheel steering mechanism equipped with the oil-gas spring, a wheel equipped with the wheel steering mechanism, and an electric vehicle using the wheel. Background technique [0002] In the steering system of the existing wheeled vehicle, the left and right steering wheels are mechanically connected by steering tie rods to form a so-called "steering trapezoid". It can realize conventional steering driving, but it cannot realize the in-situ steering with pure rolling of each wheel around the center of the vehicle, turning all wheels 90° to achieve lateral translation, and turning all wheels at the same steering angle to achieve oblique translation, etc. mobility. [0003] Existing wheeled vehicles all design the steering kingpin to have a certain inclination and backward inclination and a certain steering offset distance, the purpose is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/06F16F9/32F16F9/512B60G11/26B60G11/27B60G17/052B62D5/04
CPCF16F9/061F16F9/063F16F9/3221F16F9/3228F16F9/5123B62D5/0421B60G11/265B60G11/27B60G17/052B60G2200/422B60G2200/44B60G2202/15
Inventor 柯德钧朱恒
Owner 武汉梦马易腾智能汽车科技有限公司
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