| 摘要 |
PURPOSE: A structure of fixing a reduction motor for a winch in a tower crane is provided to enable simple and quick installation of a reduction motor, thereby facilitating the assembly of a winch drum. CONSTITUTION: In a structure of fixing a reduction motor(50) for a winch in a tower crane, the motor unit(20) and the reduction gear unit(30) of the reduction motor are directly coupled together. The reduction gear unit is coupled to the drum shaft of a winch drum(10) so that the reduction motor is fixed to a winch frame(40). The winch drum is supported in a fixing bracket(41) of the winch frame and allowed to rotate. In a first fixing location where the motor unit and the reduction gear unit of the reduction motor are located in the horizontal direction, a fixing plate(44) with a through hole aligned with fixing holes(30a) formed in the reduction gear unit is installed in the winch frame and fixed with bolts and nuts. In a second fixing position where the motor unit and the reduction gear unit of the reduction motor are in the upright position, a socket(46) with a screw hole aligned with the fixing holes of the reduction gear unit is installed and fixed in the fixing bracket of the winch frame. |
