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Testing device for single-wheel traction performance

A traction performance and testing device technology, which is applied in the direction of automobile tire testing, etc., can solve the problems of complicated and difficult device control, unstable measurement results, and decreased measurement accuracy, and achieve the effects of low cost, simple manufacture, and space saving

Inactive Publication Date: 2014-01-01
CHINA AGRI UNIV
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Problems solved by technology

The existing single-wheel experimental device mainly includes a double parallel four-bar linkage structure and an inner and outer frame structure, but there are problems of decreased measurement accuracy and unstable measurement results due to the installation method and position of the sensor, or the influence of external loads. , other devices that try to improve the measurement accuracy based on this structure increase the corresponding sensors and controllers, making the device control complicated, difficult and expensive

Method used

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  • Testing device for single-wheel traction performance
  • Testing device for single-wheel traction performance
  • Testing device for single-wheel traction performance

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Embodiment Construction

[0033] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] see figure 1 - Fig. 4, a single-wheel traction performance testing device, including a bench 1, a parallel four-bar linkage group 3, an outer frame 4, a double-acting hydraulic cylinder 5, an inner frame 6, a longitudinal sensor 7, a torque sensor 8, a side Directional sensor 9, vertical sensor 11, lateral preload spring 10, vertical preload spring 12, tire under test 13, bearing housing 14, hydraulic motor 15, small sprocket 16, chain 17, large sprocket 18, transmission axis 19. Set the advancing direction of the tested tire 13 as the X-axis, the axial direction as the Y-axis, and the vertical upward as the coordinate system of the Z-axis, and the O point is the geometric center of the tested tire 13, thus establishing XOY, XOZ, YOZ three flat.

[0035] A single-wheel traction performance test ...

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Abstract

The invention belongs to the field of testing devices and particularly relates to a testing device for a single-wheel traction performance. The invention aims to provide the testing device for the single-wheel traction performance; mounting ways and mounting positions of all sensors reach ideal measurement states, and existing sensor data is used for carrying out feedback control, so that the measurement accuracy is improved and the cost is saved.

Description

technical field [0001] The invention belongs to the field of test devices, in particular to a device for testing the traction performance of a single wheel. Background technique [0002] The single wheel traction performance test device is used to test the traction performance of a single agricultural or off-road vehicle tire. The traction performance of the tire is closely related to the parameters of the tire itself, the tire load, and the ground conditions. The study of the relationship between the above factors is of great significance for the in-depth study of the tire-ground interaction mechanism, the development of new walking devices, and the guidance of tire selection. The traction-slip ratio test results can comprehensively characterize the relationship between the above factors, which is of great significance for further revealing the tire-soil interaction mechanism. [0003] The single-wheel experimental device developed for the traction force-slip rate experime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/02
Inventor 宋正河武秀恒谢斌朱忠祥毛恩荣
Owner CHINA AGRI UNIV
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