摘要 |
PURPOSE: A measurement apparatus for vehicle wheel is provided to accurately detect data on the vertical and horizontal vibration caused due to unbalancing of vehicle wheel. CONSTITUTION: A measurement apparatus comprises a motor(170) rotating by a power applied from an external source; a belt(180) for transmitting rotating force of the motor; a pulley(175) rotating through the belt when the motor rotates; a main shaft(174) connected to the pulley, and which rotates along with the rotation of the pulley; a bearing support shaft(173) arranged at a side of the main shaft; a pulse generating member(162) arranged outside the pulley; a pulse detection member(152) for detecting pulse signals output from the pulse generating member; a hollow wheel support(176) coupled to the right end of the main shaft and to a vehicle wheel; a coupling member(190) arranged outside the vehicle wheel, and which supports the vehicle wheel such that the vehicle wheel coupled to the wheel support does not escape from the wheel support during rotation; a first bearing(164) and a second bearing(166) arranged at the outer periphery of the bearing support shaft, and which rotate together with the bearing shaft; a vibration transfer unit(130) arranged outside the first and second bearings, and which transfers vibration applied from the first and second bearings; a first vibration sensing unit(110) connected to the vibration transfer unit, and which measures vibration applied from the first and second bearings; and a second vibration sensing unit(120) arranged beneath the vibration transfer unit, and which measures vibration applied from the first and second bearings.
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