GB898923A - Improvements in or relating to hydraulic drive arrangements - Google Patents

Improvements in or relating to hydraulic drive arrangements

Info

Publication number
GB898923A
GB898923A GB1253460A GB1253460A GB898923A GB 898923 A GB898923 A GB 898923A GB 1253460 A GB1253460 A GB 1253460A GB 1253460 A GB1253460 A GB 1253460A GB 898923 A GB898923 A GB 898923A
Authority
GB
United Kingdom
Prior art keywords
chamber
liquid
pump
wheel
supported
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
GB1253460A
Inventor
Kenneth Hewer Treweek
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 GB1253460A priority Critical patent/GB898923A/en
Publication of GB898923A publication Critical patent/GB898923A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

898,923. Machine tool details. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 6, 1961 [April 8, 1960], No. 12534/60. Class 83 (3). [Also in Groups XXIX, XXXI and XXXIV] An hydraulic drive arrangement for a member 11, Fig. 2, such as the tool carrier of a machine tool, supported for sliding motion on a supporting member 12 comprises a liquid chamber 15 which is formed between the adjacent bearing surfaces of the members 11, 12 and is of small dimension in a direction normal to the bearing surfaces so that liquid fed to the chamber 15 passes through it in the form of a thin layer and driving movement is imparted to the member 11 by the force exerted by the liquid due to its viscosity and skin friction drag upon the walls of the chamber. The member 11 may be formed with two chambers 15, 16 and liquid is supplied from a pump 20 to chamber 15 to move the member in the direction of arrow A or to chamber 16 to move the member in the direction of arrow B. Valves may be provided at the inlets or outlets of the chamber to control the movement of the member. In another embodiment, the chamber 24, Fig. 3, extends substantially the whole length of the member 21 and the supply from the pump 28 is directed to one end or the other of the chamber to effect movement of the member 21, which may be formed with chambers on opposite sides of the supporting member 21 to prevent separation of the surfaces. In a further embodiment for rotating a shaft 51, Fig. 5, the chamber 53 is formed in a housing 52 and fluid is supplied from a pump 57 to one end or the other of the chamber to rotate the shaft in one direction or the other. In a similar arrangement, a wheel 61, Fig. 6, such as a vehicle wheel, is supported on a stub shaft 62 and fluid supplied from a pump 67 to the chamber 63 through a passage 65 or 66 rotates the wheel in one direction or the other. Further passages 68, 69, 70 are connected by a passage 71 to atmosphere or suitable control means to relieve pressure at a bearing area 64 so that the wheel is supported on the liquid as in the ease of a hydrostatic bearing.
GB1253460A 1960-04-08 1960-04-08 Improvements in or relating to hydraulic drive arrangements Expired GB898923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1253460A GB898923A (en) 1960-04-08 1960-04-08 Improvements in or relating to hydraulic drive arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1253460A GB898923A (en) 1960-04-08 1960-04-08 Improvements in or relating to hydraulic drive arrangements

Publications (1)

Publication Number Publication Date
GB898923A true GB898923A (en) 1962-06-14

Family

ID=10006380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1253460A Expired GB898923A (en) 1960-04-08 1960-04-08 Improvements in or relating to hydraulic drive arrangements

Country Status (1)

Country Link
GB (1) GB898923A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235321A1 (en) * 1986-02-28 1987-09-09 Julius Maschinenbau GmbH Method of machining metal strip and guiding means used therefor
GB2201386A (en) * 1986-12-15 1988-09-01 Hydro Spartan Ltd Wheel drive arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235321A1 (en) * 1986-02-28 1987-09-09 Julius Maschinenbau GmbH Method of machining metal strip and guiding means used therefor
GB2201386A (en) * 1986-12-15 1988-09-01 Hydro Spartan Ltd Wheel drive arrangement

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