GB906818A - Hydrostatic bearing - Google Patents

Hydrostatic bearing

Info

Publication number
GB906818A
GB906818A GB1131859A GB1131859A GB906818A GB 906818 A GB906818 A GB 906818A GB 1131859 A GB1131859 A GB 1131859A GB 1131859 A GB1131859 A GB 1131859A GB 906818 A GB906818 A GB 906818A
Authority
GB
United Kingdom
Prior art keywords
fluid
resistance
pads
pressure
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1131859A
Inventor
Joseph Kenneth Royle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB1131859A priority Critical patent/GB906818A/en
Publication of GB906818A publication Critical patent/GB906818A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
    • B23Q1/385—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports in which the thickness of the fluid-layer is adjustable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

906,818. Machine-tool details. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 1, 1960 [April 2, 1959], No. 11318/59. Class 83 (3). [Also in Group XXXIV] In a fluid bearing means are provided for measuring the variation in resistance to flow of fluid through a clearance space 6 and for varying the supply pressure to maintain constant the flow of fluid through the space. The resistance to flow through a restriction 2 is represented in Fig. 3 by a resistance R 1 and that through the clearance space 6 by a resistance R 2 . The pressure P s of the fluid supplied from a valve 10 is connected to one end of the valve casing and the pressure P 1 of the fluid passing to the clearance space is connected to the other end of the valve casing. Since the areas of valve spools 13, 14 are in the ratio 2: 1 the pressure P 1 = ¢ P s . The resistance R 2 is thereby maintained as a constant proportion of R 1 , say 0.3 to 0.7 R 1 . Two such systems may be employed on the slide of a lathe, milling machine or profile checking machine as shown in Fig. 4, there being no need to ensure a fine finish on the main bearing areas 33, 34, 35, 36. To prevent damage in case of sudden loads or failure of the fluid pressure supply, pads 50, Fig. 5, may be used to convey the fluid to the auxiliary bearing surfaces 37, 39, 38, 40 of Fig. 4. The pads 50 are carried on rods 51 which can be moved axially against springs 54 if the pads contact the slideway. Such pads can be used on dividing heads, sighting instruments and vertical bearings. Additional conventional pads may also be provided.
GB1131859A 1959-04-02 1959-04-02 Hydrostatic bearing Expired GB906818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1131859A GB906818A (en) 1959-04-02 1959-04-02 Hydrostatic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1131859A GB906818A (en) 1959-04-02 1959-04-02 Hydrostatic bearing

Publications (1)

Publication Number Publication Date
GB906818A true GB906818A (en) 1962-09-26

Family

ID=9984070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1131859A Expired GB906818A (en) 1959-04-02 1959-04-02 Hydrostatic bearing

Country Status (1)

Country Link
GB (1) GB906818A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266854A (en) * 1963-11-29 1966-08-16 Sheffield Corp Machine system
DE3024150A1 (en) * 1980-03-06 1981-09-10 Makino Milling Machine Co. Ltd., Tokyo LOAD COMPENSATED LEADERSHIP MECHANISM
EP1382415A1 (en) * 2002-07-18 2004-01-21 P & L GmbH & Co. KG Active vibration damping in a machine tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266854A (en) * 1963-11-29 1966-08-16 Sheffield Corp Machine system
DE3024150A1 (en) * 1980-03-06 1981-09-10 Makino Milling Machine Co. Ltd., Tokyo LOAD COMPENSATED LEADERSHIP MECHANISM
EP1382415A1 (en) * 2002-07-18 2004-01-21 P & L GmbH & Co. KG Active vibration damping in a machine tool
US7018103B2 (en) 2002-07-18 2006-03-28 P&L Gmbh & Co. Kg Active vibration damping in a machine tool

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