Vehicle toe-in angle and camber angle measuring device and method

Abstract

The invention discloses a vehicle toe-in angle and camber angle measuring device and method. The vehicle toe-in angle and camber angle measuring device comprises measuring assemblies fixed to the two sides of a to-be-detected vehicle respectively, each measuring assembly comprises a reflector, a supporting plate, a laser assembly and an adjusting assembly, the reflectors are fixed to wheels, and the planes where the reflectors are located are perpendicular to the axes of the wheels; a wheel center mark is arranged at the position, corresponding to the axis of the vehicle, of the reflector; the laser assembly comprises a measuring laser, the measuring laser is fixed to the side face, away from the to-be-detected vehicle, of the supporting plate, and the supporting plate is provided with a measuring light beam hole allowing a measuring light beam of the measuring laser to penetrate through; and the supporting plate is fixed on the adjusting assembly, the position of the supporting plate can be adjusted through the adjusting assembly, a reflecting block is arranged at the position, close to the measuring light beam hole, of the reference surface of the supporting plate, a reflecting surface forming a 45-degree included angle with the reference surface is arranged on the reflecting block, and a dial perpendicular to the reference surface is arranged at the end, facing the supporting plate, of the reflecting surface. The measuring precision can be guaranteed, the size is small, the weight is light, and the carrying convenience is improved.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a vehicle toe angle and camber angle measuring device and method. Background technique [0002] The toe-in and camber angle of the wheel have a significant impact on the driving stability of the vehicle and the life of the tire. Therefore, in the maintenance of the vehicle, it is often necessary to measure the toe-in angle and camber angle. [0003] However, the measuring equipment currently used are all large-scale 3D measuring equipment fixedly installed. Although they have high precision, they cannot be moved and are inconvenient to use. Or use a tape measure to measure the distance difference between the leading edge and the trailing edge of the tire, and the measurement accuracy is unacceptable. There are also some patents that have explored portable measuring devices, but considering the impact of the use environment and the accuracy of the vehicle itself, the results are unsatisfactory...

AI Technical Summary

Problems solved by technology

Its entire structure is purely mechanical, and it needs to span both sides of the vehicle and cover the length of the front or rear suspension of the vehicle. It still has a large one-dimensional size and is inconvenient to carry

CN106985909A discloses a wheel alignment and toe angle adjustment system for a three-wheeled vehicle, which reflects the angle through laser reflection, but the positioning of the laser and the reflector depends on the wheel itself, lacking precise positioning

Considering that the toe angle of the wheel is generally a small angle of about 10', and the wheelbase deviation of the vehicle will affect the measurement system, it is difficult to obtain accurate measurement results with this measurement method

And the above two technical solutions can only measure the toe angle, but cannot measure the camber angle

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