Simulated pavement rotary drum and automobile test equipment

Patent metadata

Field	Value
Publication number	US-2022316986-A1
Application number	US-202117368232-A
Country	US
Kind code	A1
Filing date	Jul 6, 2021
Priority date	Apr 1, 2021
Publication date	Oct 6, 2022
Grant date	—

Abstract

The present disclosure belongs to the technical field of tests of automobile wheels and automobile chassis suspension systems, and provides a simulated pavement rotary drum and automobile test equipment. A simulated cobblestone pavement, and a simulated impact pavement, so that a testing pavement at a test field is reproduced; an impact load caused by the track pavement, the cobblestone pavement, and the impact pavement can be applied to wheels and a chassis system; and a road simulation test of wheels and a suspension system of an automobile can be performed on bench test equipment. As verified, the simulated pavement rotary drum of the present disclosure can reproduce the simulated track pavement at the test field; and the consistency of radial impact loads is greater than 95% at the same speed and under the same vehicle load operating condition.

First claim

What is claimed is:

1 . A simulated pavement rotary drum, comprising a rotary drum base body and a simulated pavement, wherein the rotary drum base body is cylindrical and the simulated pavement is fixed on a cylindrical side wall of the rotary drum base body;
the simulated pavement is at least one of a simulated track pavement, a simulated cobblestone pavement, and a simulated impact pavement; the simulated track pavement is a pavement provided with rectangular bumps disposed at an equal interval; the simulated cobblestone pavement is a pavement that cobblestone-shaped bumps spread over; and the simulated impact pavement is a pavement provided with simulated speed bumps.

2 . The simulated pavement rotary drum according to claim 1 , wherein the simulated pavement is fixed on the rotary drum base body through bolts.

3 . The simulated pavement rotary drum according to claim 1 , wherein a material of the simulated pavement is 7075 aluminum alloy, and a material of the rotary drum base body is Q345 carbon steel.

4 . The simulated pavement rotary drum according to claim 1 , wherein weight reducing through holes are formed in the rotary drum base body along an axial direction.

5 . A simulated pavement rotary drum, comprising a rotary drum base body and a simulated pavement, wherein
the rotary drum base body comprises a rotating shaft, a left fixed round plate, and a right fixed round plate; and the left fixed round plate and the right fixed round plate are fixed on the rotating shaft, and may rotate with the rotating shaft; the simulated pavement is fixed between edges of the left fixed round plate and the right fixed round plate; the simulated pavement is at least one of a simulated track pavement, a simulated cobblestone pavement, and a simulated impact pavement; the simulated track pavement is a pavement provided with rectangular bumps disposed at an equal interval; the simulated cobblestone pavement is a pavement that cobblestone-shaped bumps spread over; and the simulated impact pavement is a pavement provided with simulated speed bumps.

6 . The simulated pavement rotary drum according to claim 5 , wherein bolt holes are formed in the edges of the left fixed round plate and the right fixed round plate; and left and right sides of the simulated pavement are fixed by means of cooperation of bolts and the bolt holes.

7 . The simulated pavement rotary drum according to claim 5 , wherein a material of the simulated pavement is 7075 aluminum alloy, and a material of the rotary drum base body is Q345 carbon steel.

8 . The simulated pavement rotary drum according to claim 5 , wherein weight reducing through holes are formed in the left fixed round plate and the right fixed round plate along an axial direction.

Assignees

• Citic Dicastal Co Ltd

Inventors

• Li Shide
• Chen Desheng
• Yin Zhigao
• Wang Jun
• Xu Zuo
• Wu Hanqi

Classifications

• G01M17/04 Primary

  Suspension or damping · CPC title

• G01M99/008

  by doing functionality tests · CPC title

• G01M17/0074 Primary

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

• G01M17/013 Primary

  Wheels · CPC title