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Oil-gas spring, wheel steering mechanism, wheel and vehicle

A technology of oil-pneumatic springs and wheels, which is applied in the field of vehicles and wheels, can solve problems such as difficult realization, and achieve the effects of improving mobility, high passability, and good controllability

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

These requirements are difficult to achieve in existing unmanned vehicles

Method used

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  • Oil-gas spring, wheel steering mechanism, wheel and vehicle
  • Oil-gas spring, wheel steering mechanism, wheel and vehicle
  • Oil-gas spring, wheel steering mechanism, wheel and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 with figure 2 , The embodiment of the present invention provides an oil-gas spring, including an oil cylinder, an elastic damping unit, and an oil circuit unit. The oil cylinder includes a piston rod 3 and a multi-stage cylinder tube nested step by step from the outside to the inside; each adjacent two-stage cylinder In the tube, the outer wall of the inner cylinder tube 2 has a stepped shaft structure with a wide upper and a narrow bottom. The large-diameter section 201 of the inner cylinder 2 is embedded and slidably arranged in the outer cylinder 1, and the top end is provided with the outer cylinder tube. 1 The inner cavity is connected to the oil hole, the small diameter section 202 of the inner cylinder tube 2 penetrates the bottom end of the outer cylinder tube 1 and surrounds the inner wall of the outer cylinder tube 1 to form an annular oil chamber 7; The piston rod 3 includes a piston part 301 and a rod part 302 connected to the bottom end of t...

Embodiment 2

[0051] This embodiment provides a wheel steering structure, which includes the oil-gas spring provided in the first embodiment above, wherein the oil-gas spring is a spring provided with a spline shaft 4, and the top of the spline shaft 4 is connected to drive its winding A drive unit that rotates on its axis. In this embodiment, such as figure 1 with figure 2 , The drive unit preferably includes a drive motor 12, a steering worm wheel 14 and a steering worm 13, the steering worm wheel 14 is coaxially sleeved with the spline shaft 4, and the steering worm 13 meshes with the steering worm wheel 14 and Connect with the driving motor 12. Since the driving motor 12 controls the steering of the wheels through the steering worm 13 and the steering worm wheel 14, and because the worm has a certain self-locking effect on the worm wheel, it can offset the steering interference of the ground on the wheel.

[0052] In the steering structure of the wheel provided in this embodiment, the sp...

Embodiment 3

[0056] Such as figure 2 , This embodiment provides a wheel, including a wheel body 34, a wheel axle 35 and a wheel axle seat 33, the wheel axle 35 is mounted on the wheel axle seat 33 and connected to the wheel body 34, and also includes the first embodiment described above The oil-air spring provided; the axle seat 33 includes a vertical section 332 for connecting with the wheel axle 35 and a horizontal section 331 connected to the top of the vertical section 332 and extending toward the vehicle body, the rod The bottom end of the portion 302 is fixedly connected to the top end of the horizontal section 331. The above-mentioned vertical section 332 and horizontal section 331 preferably adopt a disc-shaped structure.

[0057] A further preferred solution is that the oil-air spring is a spring provided with a spline shaft 4, and the top end of the spline shaft 4 is connected with a driving unit that drives it to rotate around its own axis. For this solution, reference may be mad...

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Abstract

The invention provides an oil-gas spring, a wheel steering mechanism provided with the oil-gas spring, a wheel provided with the oil-gas spring and a vehicle adopting the wheel. The oil-gas spring comprises an oil cylinder, an elastic damping unit and an oil path unit, wherein the oil cylinder comprises a piston rod and multiple stages of cylinder barrels nested stage by stage; an annular oil chamber is formed between every two adjacent stages of cylinder barrels in a surrounding mode, the piston rod is embedded and slidably arranged in the innermost cylinder barrel, and the piston rod and theinner wall of the innermost layer cylinder barrel form an annular oil chamber in a surrounding mode; and an elastic damping port is formed in the upper part of the outermost cylinder barrel, the upper part of the outermost cylinder barrel is connected with the elastic damping unit, oil path ports are formed in the upper part of the outermost cylinder barrel and all the annular oil chambers, and each oil path port is connected with the oil path unit. According to the oil-gas spring, the wheel, the vehicle and the like, the position height of each wheel center, the size of the moving stroke andthe size of the elasticity coefficient can be adjusted according to the needs of various driving conditions so that the requirements of different driving conditions can be met, and the advantages ofbeing high in trafficability and high in maneuverability are provided.

Description

Technical field [0001] The invention belongs to the technical field of automobiles, and more specifically, relates to an oil-gas spring, a wheel steering mechanism equipped with the oil-gas spring, a wheel equipped with the oil-gas spring, and a vehicle adopting the wheel. Background technique [0002] In the current chassis design of high-passability unmanned vehicles, there are generally two categories: crawler type and wheel type. [0003] The former crawler-type vehicle has good off-road performance, can cross wide trenches, and can climb certain steps, but the speed on the road is not high; steering is achieved by the difference in speed between left and right crawlers, and it will cause greater damage to the road during driving; it cannot be laterally or obliquely Translation, limiting maneuverability. [0004] The latter wheeled vehicles run at high speeds on highways and do not damage the road surface during driving. However, the existing wheeled vehicles have poor off-road...

Claims

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Application Information

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IPC IPC(8): F16F9/06F16F9/16F16F9/32F16F9/512B60G11/26B60G11/27B60G17/052B62D5/04
CPCF16F9/065F16F9/165F16F9/3228F16F9/5123B62D5/0421B60G11/265B60G11/27B60G17/052B60G2202/15B60G2200/422B60G2200/44B60G2800/0192
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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