Calibrating apparatus of integral type vehicle mounted digital display type vehicle fourth wheel orientator

Abstract

The invention discloses a kind of calibrating apparatus of integral vehicle digimatic car four wheel locating equipment. The aim of it is to overcome the long time of fetching data and the divided structure and increase the leveling difficulty and the time problem and so on. It is consisted by the framework, axle base adjustment section, back wheel detection section, front wheel detection section, and the zero point detection section. The axle adjustment section is formed by the guide rail and the guide rail slip block installing on the side of the framework work face and it is co-linear with the main pin back rake live shaft axial and parallels with the axial co-linear with two connecting axels of the sensor jacket and locates at the same horizon plane; four suits zero point detection section fix on the two sides upright column of the framework front and back plane symmetry with the lateral direction symmetry of face. The detection four wheel locating device can detect the precision of the wheel references.

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 an integral vehicle-mounted digital-display four-wheel aligner for automobiles. 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 process or its use, the p...

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

[0024] (2) Angle measurement is carried out with a dividing head. On the one hand, the data reading time is longer, and on the other hand, the weight and cost of the equipment are increased;

[0027] (5) Although the self-centering chuck can be used for precise positioning, it increases the overall weight of the equipment

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