VARIABLE THROTTLE-TYPE HYDROSTATIC BEARING

摘要

PROBLEM TO BE SOLVED: To provide a variable throttle-type hydrostatic bearing including a diaphragm-type variable throttle, not affected by use conditions and having desired damping performance in actual use.;SOLUTION: A variable throttle-type hydrostatic bearing includes: a diaphragm 33 in which a surface orthogonal to its thickness direction is opposed to a projecting surface 31b at a prescribed interval; and a flow channel 31c formed on the projecting surface 31b in a state of being communicated with a static pressure pocket 2a. The variable throttle-type hydrostatic bearing adjusts a throttle amount on the basis of an opening of a clearance between the diaphragm 33 and the projecting surface 31b. A damping property of the diaphragm 33 is set to a desired value by pressing a damping pad 34 opposed to the diaphragm 33, by a pressing spring 35, and adjusting a clearance t₃ between the diaphragm 33 and the damping pad 34.;COPYRIGHT: (C)2015,JPO&INPIT