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Patent Searching and Data


Title:
FLUID HOLDING DEVICE
Document Type and Number:
Japanese Patent JP2011073072
Kind Code:
A
Abstract:

To provide a fluid holding device (a static pressure bearing and a static pressure guide) capable of restraining accuracy reduction in a moving body by a disturbance load varying at a high speed.

This fluid holding device includes displacement sensors 9 and 10 for measuring relative displacement by disturbance force of a main spindle 3 and bearings 4 and 5, and land pressure oil supply-suction means 7 and 8 for supplying-sucking pressure oil of a land part of a static pressure pocket, and restrains the accuracy reduction in the fluid holding device by the disturbance force by supplying pressure oil to the land part or sucking the pressure oil of the land part so as to restrain the relative displacement of the bearings 4 and 5 and the main spindle 3 by the disturbance force.


Inventors:
Tanase, Ryota
Application Number:
JP2009000224038
Publication Date:
April 14, 2011
Filing Date:
September 29, 2009
Export Citation:
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Assignee:
JTEKT CORP
International Classes:
B23B19/02; B23Q1/70; B23Q17/00; F16C32/06
Domestic Patent References:
1991-03-01
1987-10-27
1988-06-22
1982-10-30