Calibrating apparatus for vehicle vertically and horizontally flat non-relating angle modulation type fourth wheel orientator

Abstract

This invention discloses one test device for automobile industry field cross plane irrelatively angle four-wheel position machine, which comprises front axis test part and back part, wherein the front part is composed of front wheel test part and front bench board and shell; the front bench is fixed on shell and two front wheels test parts are symmetrically fixed on the front bench board ends andthe two test parts have two card disc rotation axis; the back axis test part is composed of push angle test part, shell, upper bench board, back wheel test part, push force angle rotation axis and down bench board.

Description

technical field [0001] The invention relates to an inspection device of automobile inspection equipment in the field of automobile industry, more specifically, it relates to an inspection device of a four-wheel aligner of an independent angle-adjusting type of automobile vertical and horizontal planes. Background technique [0002] The car's handling stability and straight-line driving performance are guaranteed by the reasonable matching of the car's wheel alignment parameters. Any misalignment of the parameters will cause the car to lose its handling stability and straight-line driving ability, accelerate tire wear, increase fuel consumption, and reduce safety And other issues. [0003] The four-wheel aligner is the most important testing equipment for checking whether the wheel alignment is accurate. At present, there are more than 30,000 four-wheel aligners in the country, and they are increasing at a rate of 30% per year. However, no matter whether it is the production...

AI Technical Summary

Problems solved by technology

The detection of the above parameters by the four-wheel aligner can be realized by different detection methods and sensors, because the caster angle and the inclination angle of the wheel cannot be directly measured by the sensor of the four-wheel aligner, but indirectly through the corresponding mathematical model Therefore, it is extremely difficult to test the detection accuracy of different four-wheel aligners

[0010] (1) The structure is complex, the processing precision is high, and the cost is increased;

[0011] (2) The transmission chain is long and the cumulative error is large;

[0012] (3) The measurement method of kingpin inclination and kingpin camber is vernier measurement, which is complicated to manufacture;

[0013] (4) The thrust angle and steering angle cannot be tested

[0016] (1) The structure is complex, the processing precision is high, and the cost is increased;

[0017] (2) The transmission chain is long and the cumulative error is large;

[0018] (3) Caster angle and steering angle cannot be tested;

[0019] (4) The left and right wheels cannot move independently, and the front and rear axles cannot move independently;

[0020] (5) Calibration accuracy, principle, and parameters do not meet the requirements of the Ministry of Communications standard JT / T505-2004

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