Stand facilities to do the revolving shaft of the door of the reform machine outside

摘要

PROBLEM TO BE SOLVED: To solve the problems that since a gap for reducing the sliding resistance between the inner ring of each rolling bearing is required to be secured and a rotary shaft, and fit dimensions proper to the rolling bearing can not be obtained, the rolling bearing becomes broken and the rotation of a door becomes heavy to be easily opened/closed.;SOLUTION: The lower part of the rotary shaft 8 in a door 4 of a straightening machine is provided with an ascending/descending device 7, so as to be a mechanism where both the rotary axis 8 and door 4 can ascend and descend. Then, the need of sliding to the upper and lower directions is eliminated between the inner ring of each rolling bearing 12 provided at the connection arm for the rotary axis 8 and the door 4, and the rotary axis 8. In this way, fit dimensions proper to each rolling bearing 12 can be easily obtained. Further, by providing plain bearings 11 passing through the rotary shaft so as to be freely slidable, the load on each rolling bearing 12 provided at the connection arm for the rotary shaft 8 and the door 4 is sheared also by the plain bearings 11 passed through the rotary shaft 8; thus the load on each rolling bearing 12 is reduced.;COPYRIGHT: (C)2007,JPO&INPIT