Tire rolling resistance coefficient measuring and testing device

Abstract

The invention discloses a tire rolling resistance coefficient measuring and testing device which comprises a flat road surface template to be in contact with a test tire, a workbench used for settingthe road surface template, and a tire loading device, wherein a surface of the road surface template is provided with an adhesion layer which is consistent with an actual road surface in terms of material; the road surface template is used for setting the road surface model, and the workbench is connected to a template driving device for driving the workbench to move via a tension and pressure sensor; the tire loading device for setting the test tire and applying predetermined positive pressure thereto to press the test tire tightly against the road surface model. A surface of the tire rollingresistance coefficient measuring and testing device is provided with the adhesion layer which is consistent with an actual road surface in terms of material, an actual rolling resistance coefficientof the tire on an actual road surface can be measured, and realistic and reliable measurement results can be obtained. Further, the tension and pressure sensor is cheaper than a conventional sensor for a wheel axle; the testing device is simple in structure and low in requirements for working environment and structural precision and therefore is low in cost.

Description

technical field [0001] The invention relates to the technical field of tire testing equipment, in particular to a tire rolling resistance coefficient measurement test device. Background technique [0002] In the prior art, the rolling resistance coefficient of a rubber pneumatic tire is usually measured by a dynamometric method, referred to as the rolling resistance coefficient. The rolling resistance coefficient is defined as the ratio of the rolling resistance of the tire to the normal pressure on the tire. [0003] Existing dynamometric test devices mainly include two types of roller test devices and flat belt test devices. The roller test device usually includes a pressurized oil cylinder, a test tire, a force sensor, a roller and a drive motor. The diameter of the roller is larger than the outer diameter of the test tire or smaller than the inner diameter of the test tire. During the test, the test tire is installed on the inner or outer surface of the roller. And pres...

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Problems solved by technology

[0007] Furthermore, in order to compensate for the errors introduced by the structural characteristics of the drum and the endless steel belt itself, the working environment and precision of the drum test device and the flat belt test device are usually very high, and the selection of the load cell is also special, resulting in production higher cost

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