Porous static pressure guide

Details Porous static pressure guide Porous static pressure guide

1987-09-09

1988-12-27

Herrmann, Allan D.

Machine element or mechanism

Gearing

Directly cooperating gears

10 86R, 74459, 74468, 384107, 3849071, 427438, F16H 2524, F16C 3206

Patent

active

047932015

ABSTRACT:
A static pressure lead screw includes a porous ceramic body having fluid flow paths as part of a flank. The porous ceramic body is fixed by a tubular base member through which the fluid does not flow. Fluid guide holes for supplying the fluid to the porous body extend through the tubular base member and are connected to the porous body. In a preferred embodiment, an electroless-plated layer is formed in a surface layer of the flank or an inner portion continuous with the surface layer, thereby obtaining various high-accuracy static pressure guides with high statical stiffness.

REFERENCES:
patent: 3171295 (1965-03-01), Benckert
patent: 3670583 (1972-06-01), Leming
patent: 4695489 (1987-09-01), Zarnoch et al.
patent: 4710034 (1987-12-01), Tittizer et al.
"Hydrostatic Lead Screws" by John H. Rumbarger et al., Machine Design, Apr. 11, 1968, pp. 218-224.
Japan Society of Precision Engineering, No. 49, Jul., (1983), p. 889; Aug. (1983), p. 1083; Jun., (1983), p. 760.
Junkatsu, 20, May (1975), p. 393.
Japan Society of Precision Engineering, No. 48, Oct. (1982), p. 1291, 1341.

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