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A bionic sand-surfing wheel drum-shaped wheel surface imitating the three-dimensional curved surface of the sole of an ostrich

A three-dimensional curved surface, bionic wheel technology, applied in the field of engineering bionics, can solve the problems of poor sand fixation and current limiting effect of ordinary wheel surfaces, low wheel traction, and large fluidity, etc., to improve passability and traction performance, and superior sand fixation and current limiting effect. , the effect of superior sand passability

Inactive Publication Date: 2016-04-06
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether the wheel can run smoothly on the sandy ground is directly related to the characteristics of the wheel surface. Ordinary wheel surfaces have poor sand-fixing and current-limiting effects. Usually slipping, sinking, etc.

Method used

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  • A bionic sand-surfing wheel drum-shaped wheel surface imitating the three-dimensional curved surface of the sole of an ostrich
  • A bionic sand-surfing wheel drum-shaped wheel surface imitating the three-dimensional curved surface of the sole of an ostrich
  • A bionic sand-surfing wheel drum-shaped wheel surface imitating the three-dimensional curved surface of the sole of an ostrich

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Experimental program
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Embodiment Construction

[0019] see figure 1 , figure 2 , image 3 and Figure 4 As shown, the present invention is composed of several bionic wheel surface monomers 1 arranged in an array on the circumference of the base circle 2. The bionic wheel surface monomer 1 is composed of an ellipsoidal surface 11, a groove surface 12 and a gentle curved surface 13; The line 3 is the contour line, and the ellipsoidal surface 11, the groove surface 12, the gently curved surface 13 and two transition surfaces of the wheel surface are obtained by sweeping the first wire 4 and the second wire 5 respectively as the sweeping wire;

[0020] like Figure 5 As shown, the first wire 4 is composed of four circular arcs, two adjacent circular arcs are tangent, and the radii are R 1 = 50mm, R 2 =38.675mm, R 3 = 50mm, R 7 =275mm, the center of the circle is O 1 (0, 0, 250), O 2 (0,80.268,287.687),O 3 (0,100.41,201.337), O(0,0,0); angle θ 1 =64.849°, angle θ 2 =77.999°, angle θ 3 =39.663°, angle θ 7 =20.161°,...

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Abstract

The invention discloses a bionic sand crossing vehicle wheel drum-shaped wheel face which imitates a 3D curved face of the sole of an ostrich. The bionic sand crossing vehicle wheel drum-shaped wheel face is formed by distributing multiple bionic wheel face monomers on the circumference of a base circle in an array mode. Each bionic wheel face monomer is composed of an ellipsoid, a groove face and a slowly curved face. A semi-elliptic arc line serves as an outline. The ellipsoids, the groove faces, the curved faces and two transition faces of the wheel face are obtained by scanning with a first guide line and a second guide line as scanning guide lines respectively. The ellipsoids, the groove faces and the slowly-curved faces imitate the curved face of the sole of the third toe of the ostrich. The bionic sand crossing vehicle wheel drum-shaped wheel face solves the problem that a vehicle can hardly run normally in a desert, improves the trafficability and the traction performance of a running wheel or tire on a loose sandy soil road surface and is applicable to loose and soft medium environments such as the desert, the gobi desert, the moon and the Mars. Compared with a wheel of a smooth drum-shaped wheel face structure with the same size, the traction force of a hook is improved by 2.8% to 5.7%, the traction efficiency is improved by 3.2% to 6.5%, and the relative flowing speed of sandy oil under the wheel face is reduced by 8.9% to 11.6%.

Description

technical field [0001] The invention belongs to the technical field of engineering bionics, and in particular relates to a drum-shaped wheel surface of a bionic sand-riding wheel imitating the three-dimensional curved surface of the sole of an ostrich. Background technique [0002] In today's increasingly competitive society, the level of productivity is an important indicator of a country's overall national strength, and the amount of mineral resources extracted in a country, such as oil, coal, and metals, is directly related to the development of a country's productivity. my country is a vast country with rich mineral resources, but a considerable part of the resources are stored in deserts, Gobi and other areas with extremely poor road conditions. According to the desert census data released in June 2006, my country's desertified land has reached 1.73 million square kilometers, accounting for 18% of the total land area, of which the Gobi desert is about 1.16 million squar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B15/00
Inventor 张锐杨明明刘海宝曾桂银罗刚薛书亮李建桥
Owner JILIN UNIV
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