| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device which achieves both of supplying grease to a portion where lubrication is required, and preventing intrusion of the grease into a motor, and in which an output shaft from a strain wave gearing is directed upward. <P>SOLUTION: The driving device includes: a strain wave gearing 10; a motor spacer 5 which has a first grease reservoir 52 in a groove state of enclosing a motor shaft 61 and storing grease 8 flowing down from the strain wave gearing 10, and a second grease reservoir 53 in a groove state of enclosing the first grease reservoir 52 and storing the grease 8 overflowing from the first grease reservoir 52, and which positions a motor 6 with the motor shaft 61 directed upward, below the strain wave gearing 10; and a grease circulation ring 4 which has a cylindrical portion 41 whose lower part is narrowed, which is fixed to the motor shaft 61 between a wave generator 3 and the motor spacer 5, and which rotates together with the motor shaft 61. <P>COPYRIGHT: (C)2013,JPO&INPIT |
