Patent ID: 6293146
Filing Date: 2001-09-25
Classification: G01M

Abstract:
A wheel balancing device for use in a vehicle comprising:a pulley rotated by a belt rotated by a motor;a main shaft adapted to rotate with said pulley;a first bearing housing mounted around the main shaft to guide the main shaft;a second bearing housing mounted near the first bearing housing and rotatably supporting the main shaft;a pulse generator mounted near the second bearing housing and having a plurality of slots for generating a pulse;a pulse detector mounted near the pulse generator to detect the pulse signal from the pulse generator;a wheel support on which a wheel is closely supported thereon having a hollow space therewithin and mounted near the pulley;a stop for preventing the wheel from unloosening from the wheel support when the wheel rotates, the stop supported by the wheel support, the stop mounted near the wheel support;a first vibration detection device mounted under the first bearing housing to detect a vibration of the first bearing housing;a second vibration detection device mounted under the second bearing housing to detect a vibration of the second bearing housing;wherein the first vibration detection device includes:a first support frame fixed to a main frame under the first bearing housing by a plurality of fixing elements;a first protuberance mounted under a center of the first support frame extending downwardly therefrom to protrude above the main frame;a first washer mounted near the first protuberance;a first sensing member mounted under the first washer to detect a vibration transmitted from the main shaft during its rotation;a first ball mounted under a center of the first sensing member to disperse a force due to the vibration to the first sensing member when the first sensing member detects the vibration; anda first clamping device mounted under the first ball to maintain the first sensing member under the first support frame by depressing the first ball upwardly.