| 摘要 |
PURPOSE:To suppress deviation and vibration by providing oblong holes in plural places of a cup-shaped wall formed by gouging the core at one end of a cylinder, boring a precision through-hole in the center of the other end of the cylinder, providing cutout parts at both side faces of a neck part with the outer periphery cut out into the radius dimension of the cylinder, and silver-blazing a cylindrical protruding body, having a precision through-hole at the center, to an opening part. CONSTITUTION:One end of a cylinder is gouged through to form a cup-shaped wall 61 with an opening part 68, and the wall 61 is provided with oblong holes 62 in plural places. A precision through-hole is bored in the outer end center of the cylinder to provide a thread part 64 and to provide a neck part 65 with the outer periphery cut out into about the radius dimension of the cylinder diameter. A precision through-hole is bored at the center of the opening part 68, and a protrusive cylindrical body provided with a screw 67 is fitted into the precision through hole and silver-soldered. The oblong holes 62 serve as the insert/takeout ports for the nuts 71, 74 and a spanner in the case of connecting a driving shaft 70 and a rotary shaft 72 to a joint 60 and as the confirmation-inspection holes for connection. Both side faces of the neck part 65 are provided with cutout parts 63 serving as a spanner fitting/ removing part for fastening/loosening the nuts 71, 74. Rotation is thereby transmitted without the generation of deviation and vibration. |
