Title:
STRUCTURE FOR IMPARTING PRELOAD TO ROLLING BEARING, AND THREE-DIMENSIONAL MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2019039439
Kind Code:
A
Abstract:
To provide a structure for imparting a preload to a rolling bearing, easier to manage a preload than before, and enabling cost reduction.SOLUTION: A preload imparting structure for imparting a preload to a bearing 27 of a scanning part 29 of a three-dimensional measurement device 1, wherein the three-dimensional measurement device comprises: the bearing 27 to an inner ring 27b of which a vertical rotational shaft 6 is fixed; a scanning mirror 7 attached to the vertical rotational shaft 6; and a motor 28 configured to rotationally drive the vertical rotational shaft 6. The preload imparting structure comprises: a sleeve 330 engaged to an outer ring 27a of the bearing 27; a leaf spring 340 engaged to the sleeve 330 so as to separable from the sleeve 330, and fastened to a housing body 310 through a machine screw 410; and a ring 350 connecting the sleeve 330 and the leaf spring 340 in a detachable manner. With elastic deformation of the leaf spring 340, a preload is imparted to the outer ring 27a through the sleeve 330.SELECTED DRAWING: Figure 3
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Inventors:
TERASHIMA YASUO
TANAKA YASUSHI
TANAKA YASUSHI
Application Number:
JP2017159097A
Publication Date:
March 14, 2019
Filing Date:
August 22, 2017
Export Citation:
Assignee:
TOPCON CORP
International Classes:
F16C25/08; F16C19/54; G01C15/00
Attorney, Agent or Firm:
Suenari Mikio
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