| 摘要 |
PROBLEM TO BE SOLVED: To remarkably reduce a cost by minimizing the axial length of a motor direct-coupled configuration and the number of part items and parts. SOLUTION: A motor shaft 11 is fitted into the center of the drive shaft part of a drive shaft, a bearing 5 fixed to a casing 1 is installed on the diametral outside thereof, a balance weight 7 is fitted onto the bearing parallel with each other, the inner ring of the bearing 5 is fixed, and an eccentric shaft part 2A is installed immediately adjacent to the bearing to remarkably reduce a distance between the motor end face and the end face of a fluid machine. By this, the axial length of the entire fluid machine can be reduced remarkably, the stability of operation can be increased because a bearing fixed interval can be set shorter, and a bearing and coupling can be eliminated. Thus, a cost can be reduced remarkably.
|
