GB1088321A - Fluid bearing - Google Patents

Fluid bearing

Info

Publication number
GB1088321A
GB1088321A GB45790/64A GB4579064A GB1088321A GB 1088321 A GB1088321 A GB 1088321A GB 45790/64 A GB45790/64 A GB 45790/64A GB 4579064 A GB4579064 A GB 4579064A GB 1088321 A GB1088321 A GB 1088321A
Authority
GB
United Kingdom
Prior art keywords
air
line
bearing surfaces
bearing
separate
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
GB45790/64A
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.)
Sheffield Corp
Original Assignee
Sheffield Corp
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
Priority claimed from US326822A external-priority patent/US3266854A/en
Application filed by Sheffield Corp filed Critical Sheffield Corp
Publication of GB1088321A publication Critical patent/GB1088321A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • F16C32/0644—Details of devices to control the supply of liquids to the bearings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • F16C29/025—Hydrostatic or aerostatic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • F16C32/0651—Details of the bearing area per se
    • F16C32/0659—Details of the bearing area per se of pockets or grooves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators

Landscapes

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

Abstract

1,088,321. Bearings, lubricating. SHEFFIELD CORPORATION. Nov. 10, 1964 [Nov. 29, 1963], No. 45790/64. Heading F2A. A fluid bearing comprises sensing means responsive to the size of the distance between opposed bearing surfaces and which regulates control means controlling the flow of fluid supplied between the bearing surfaces. In Fig. 2 air from supply line 21 and pressure regulator 22 passes through line 28 and pressure relay 27, which is provided with valve 32, to outlet 35 and serves to separate the bearing surfaces 13, 16. Air also passes through restrictor 23 and line 25 to orifice 26, the back pressure generated in the line 25 resulting in a deflection of diaphragm 31 of relay 27. Thus a decrease in the distance between the bearing surfaces 13, 16 causes an increase in back pressure which deflects diaphragm 31 and further opens valve 32, and increases the flow of air to separate the surfaces, and vice versa. Constant spacing between the surfaces is thus maintained. Separate bearing zones are provided (Fig. 3, not shown) each bounded by air channels in surface 16 leading to atmosphere, and comprising an area with outlets and one or more sensing orifices. The fluid supply to each zone is controlled independently. The embodiment relates to supporting a tailstock of a grinding machine.
GB45790/64A 1963-11-29 1964-11-10 Fluid bearing Expired GB1088321A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US326822A US3266854A (en) 1963-11-29 1963-11-29 Machine system
FR996565A FR1416160A (en) 1963-11-29 1964-11-27 Carrier fluid support

Publications (1)

Publication Number Publication Date
GB1088321A true GB1088321A (en) 1967-10-25

Family

ID=30117020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45790/64A Expired GB1088321A (en) 1963-11-29 1964-11-10 Fluid bearing

Country Status (2)

Country Link
FR (1) FR1416160A (en)
GB (1) GB1088321A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121892A (en) * 1982-06-11 1984-01-04 Nat Res Dev Fluid bearings
WO2000038880A1 (en) * 1998-12-14 2000-07-06 C.E. Johansson Ab Device for a movable carriage carried in a bearing of air
EP2962806A3 (en) * 2014-06-30 2016-04-13 Fritz Studer AG Machine tool, in particular a grinding machine, and workpiece holding device for a machine tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662220A1 (en) * 1990-05-15 1991-11-22 Maitre Ateliers AIR CUSHION SUPPORT DEVICE AND ITS APPLICATIONS.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121892A (en) * 1982-06-11 1984-01-04 Nat Res Dev Fluid bearings
WO2000038880A1 (en) * 1998-12-14 2000-07-06 C.E. Johansson Ab Device for a movable carriage carried in a bearing of air
EP2962806A3 (en) * 2014-06-30 2016-04-13 Fritz Studer AG Machine tool, in particular a grinding machine, and workpiece holding device for a machine tool

Also Published As

Publication number Publication date
FR1416160A (en) 1965-10-29

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