| 主权项 |
1. A quick replacement device of an abrasive belt wheel, disposed on a belt sander, the belt sander having an abrasive belt wheel box, the abrasive belt wheel being mounted in the abrasive belt wheel box, the abrasive belt wheel being connected with an output shaft of a motor through a coupling, characterized by:
the abrasive belt wheel box having a circumferential wall, the abrasive belt wheel box comprising two fixing seats spaced along a long axis thereof, the fixing seats being perpendicular to the long axis of the abrasive belt wheel box and integral with the circumferential wall, a first space, a second space, and a third space being defined within the circumferential wall of the abrasive belt wheel box, the fixing seats each having a receiving trough, the fixing seats each having longitudinal support seats at two opposing sides of the receiving trough, the support seats each having a longitudinal first through hole; two ends of the abrasive belt wheel being provided with brackets relative to the fixing seats, the brackets each having two protruding portions relative to the support seats, the protruding portions each having a longitudinal second through hole; a plurality of fixing members each being inserted in the first through hole and the second through hole for the brackets to be fixed to the fixing seats, the abrasive belt wheel being disposed in the second space, the coupling and the output shaft of the motor being disposed in the first space. |
