Drum for simulating road surfaces

Patent metadata

Field	Value
Publication number	US-9709464-B2
Application number	US-201615019340-A
Country	US
Kind code	B2
Filing date	Feb 9, 2016
Priority date	Feb 11, 2015
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

The present invention provides a drum of a wheel tester, which is characterized in that an outer surface of the drum has cyclic corrugations parallel to a cross section of the drum, wherein the cyclic corrugation in one cycle on the outer surface is composed of a concave arc and a convex arc, both of which are tangential in ends and equal in diameter, and one cycle is 30 to 50 mm in length and 1 to 1.5 mm in depth. The drum is easy to machine, reduced in cost, increased in friction force and suitable for simulating various road surfaces.

First claim

The invention claimed is:

1. A drum of a wheel tester, comprising:
an outer surface of a drum comprises a plurality of cyclic corrugations, wherein the plurality of cyclic corrugation in one cycle on the outer surface comprise a concave arc and a convex arc, both of which are tangential in ends and equal in diameter; wherein one cycle is 30 to 50 mm in length and 1 to 1.5 mm in depth; and wherein the drum is formed of carbon steel.

2. The drum of the wheel tester according to claim 1 , wherein a surface of the drum also comprises a wear-resistant alloy coating formed by electric arc spraying; and wherein the wear-resistant alloy coating is formed from a 7Cr13 solder wire by the electric arc spraying.

3. The drum of the wheel tester according to claim 2 , wherein the wear-resistant alloy coating is 0.3 to 0.5 mm in thickness.

4. The drum of the wheel tester according to claim 1 , wherein the drum is 1700 to 3200 mm in diameter and 400 to 600 mm in width.

5. The drum of the wheel tester according to claim 1 , wherein the drum is 1800 to 2200 mm in diameter; a corrugation cycle is 30 to 50 mm in length; and the corrugations are 1.1 to 1.4 mm in depth.

6. The drum of the wheel tester according to claim 1 , wherein the drum is 1900 to 2100 mm in diameter; a corrugation cycle is 32 to 42 mm in length; and the corrugations are 1.1 to 1.4 mm in depth.

7. The drum of the wheel tester according to claim 1 , wherein the drum is 2000 mm in diameter; a corrugation cycle is 32 to 42 mm in length; and the corrugations are 1.3 mm in depth.

8. The drum of the wheel tester according to claim 1 , wherein the drum is 2000 mm in diameter and 450 mm in width; a corrugation cycle is 36 mm in length; and the corrugations are 1.3 mm in depth.

9. The drum of the wheel tester according to claim 1 , wherein the corrugations of the drum are 1.3 mm in depth and take a shape of a plurality of segments of smooth and tangential arcs, with arc radius being 62.63 mm.

10. The drum of the wheel tester according to claim 1 , wherein the corrugations are parallel to a cross section of the drum.

Assignees

• Citic Dicastal Co Ltd

Inventors

• Liu Chunhai
• Li Shide
• Yin Zhigao
• Liu Qiang
• Sheng Hongwei
• Du Yiwu
• Wang Yongning
• Zhu Zhihua
• Li Changhai

Classifications

• G01M17/022 Primary

  the tyre co-operating with rotatable rolls · CPC title

• G01M17/0074

  Details, e.g. roller construction, vehicle restraining devices · CPC title