Automatic measuring system for corner-wheel spacing of vehicle front wheel

• Main Authors: LIU XIN, WU YINSHAN, WANG JINBIN, ZHOU YU, YANG HUAXI
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2009
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The utility model discloses an automatic rotation angle-tread measurement system of automotive front wheels, which is composed of a tread measurement unit, a movable rotation angle platform measurement unit, an electric control, data processing software, etc., wherein a plurality of strong magnetic steels and Hall elements form a row of Hall element linear array; and each strong magnetic steel corresponds to one Hall sensor. When the wheels rolls moving keys, the moving keys descend entirely, the strong magnetic steel arranged on the lowermost part of the moving keys descends accordingly, and the corresponding lower Hall element detects the movement signal of the strong magnetic steel and converts the mechanical movement into an electrical signal; the state of the moving keys is transmitted to a computer through a signal detection circuit; and the computer calculates the position of the wheels according to the state of each moving key and the number of the descending moving keys. The automatic rotation angle-