| 摘要 |
PURPOSE: A locking structure of grinder wheels is provided to prevent a wheel from being separated from a rotary shaft by using washer and bolt which are coupled with lowest end of the rotary shaft. CONSTITUTION: A locking structure of grinder wheels comprises a driving unit(200), a rotary shaft(300), a wheel washer(400), a wheel(500), a wheel nut(600), a washer(700), and a bolt(800). The rotary shaft is rotated by operation of the driving unit. The wheel washer, wheel, and the wheel nut are successively combined with threads formed in lower part of external cylindrical surface of the rotary shaft. A groove is formed in lower surface of the rotary shaft in a longitudinal direction. The washer is combined in lower part of the rotary shaft and adheres closely to the wheel nut. |
