Method for testing automobile hub bearing unit torque rigidity

A technology of automobile wheel hub and testing method, which is applied in the direction of measuring device, torque measurement, power measurement, etc., can solve the problems of simple test conditions, large error of test data, low test simulation, etc., and achieve good repeatability, stable loading, The effect of reducing tedious calculation time

Inactive Publication Date: 2009-06-24
LUOYANG BEARING RES INST CO LTD
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AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of simple test conditions, low test simulation, and large test data errors in the current test and analysis of the moment rigidity of the automobile wheel hub bearing unit, the present invention provides a test method for the moment rigidity of the automobile wheel hub bearing

Method used

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  • Method for testing automobile hub bearing unit torque rigidity

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Embodiment Construction

[0025] The test method of the moment rigidity of the automobile hub bearing unit of the present invention comprises figure 1 In the shown test device, a differential transformer type displacement sensor (8) is configured on the test device, and the tested data is fed back to the computer for analysis and comparison, and the moment rigidity value is calculated, wherein

[0026] ① The test device includes an axial loading cylinder, an axial loading adjustment part, a radial loading cylinder, a radial loading adjustment part, a test base, a combined loading sleeve and a mandrel;

[0027] ② There are eight differential transformer displacement sensors (8) distributed on the test point;

[0028] ③ The computer contains analysis software;

[0029] The inner ring flange of the tested automobile hub bearing unit (7) is fixedly installed on the test base (6) by bolts, and the test mandrel (14) is set on the inner ring, and the combined loading sleeve (9) is fixedly installed on the ou...

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Abstract

A method for testing the moment rigidity of a vehicle hub bearing unit is characterized in that an inner ring flange of a hub bearing unit 7 of a vehicle to be tested is fixed on a testing base 6; a combined loading sleeve 9 is fixedly mounted on an outer ring of the bearing unit; an adjusting thread sleeve 5, a radial tension sensor 4 and a radial slide block 3 are connected sequentially with one end of the bearing unit, and a radial cylinder 1 is connected with the end through a lever 2; the other end is connected with a radial slide block 10, and then connected with an axial cylinder 12, and a guiding rail 13 is adjusted to displace in line with the radial slide block; when in test, the radial cylinder applies a radial load one fourth as much as the weight of the vehicle, the axial cylinder applies the overturning moment as required, and the sensor measures the load; after the radial and axial load is applied, the hub bearing unit of the vehicle to be tested produces inclination on the horizontal section; a differential transformer type displacement sensor 8 measures the inclination of eight points; and the moment rigidity value of the hub bearing unit of the vehicle is obtained after computer software analyses and calculates the inclination of the eight collected points.

Description

technical field [0001] The invention belongs to the technical field of torque testing, and mainly relates to a testing method for the torque rigidity of an automobile hub bearing unit. Background technique [0002] The moment rigidity index of the automobile hub bearing unit significantly affects the driving comfort, steering stability and safety of the automobile. With the rapid development of the automobile industry, the experimental research on the moment rigidity of the automobile hub bearing unit has attracted more and more attention. . [0003] At present, most of the moment rigidity test and analysis of the wheel hub bearing unit is carried out by a rough method, that is, the hub flange at one end of the tested wheel hub bearing unit is fixed, and a simple moment load is applied to the steering knuckle flange at the other end. Or a dial gauge to measure the inclination angle of the hub flange relative to the steering knuckle flange. [0004] This test method is rela...

Claims

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Application Information

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IPC IPC(8): G01L3/00
Inventor 王健张金焕郭韶鹏赵俊宏李宜谦
Owner LUOYANG BEARING RES INST CO LTD
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