GB1131121A - Hydraulic motor control - Google Patents

Hydraulic motor control

Info

Publication number
GB1131121A
GB1131121A GB3209/66A GB320966A GB1131121A GB 1131121 A GB1131121 A GB 1131121A GB 3209/66 A GB3209/66 A GB 3209/66A GB 320966 A GB320966 A GB 320966A GB 1131121 A GB1131121 A GB 1131121A
Authority
GB
United Kingdom
Prior art keywords
motor
amplifier
servovalve
pressure
valve
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
GB3209/66A
Inventor
Richard Samuel Jonathan Good
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.)
Marwin Machine Tools Ltd
Original Assignee
Marwin Machine Tools Ltd
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 Marwin Machine Tools Ltd filed Critical Marwin Machine Tools Ltd
Priority to GB3209/66A priority Critical patent/GB1131121A/en
Publication of GB1131121A publication Critical patent/GB1131121A/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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/425—Motor capacity control by electric actuators
    • 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
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/27—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an absolute digital measuring device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/16—Controlling the angular speed of one shaft
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41309—Hydraulic or pneumatic drive
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42074—Position feedback and speed feedback, speed measured with tacho

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

1,131,121. Automatic speed control. MARWIN MACHINE TOOLS Ltd. Jan.24, 1967 [Jan.25, 1966], No.3209/66. Heading G3R. A variable stroke hydraulic motor is driven through a servovalve which meters the output of a source of fluid at constant pressure, and a tachometer registers the speed of the motor as an electric signal which is fed back to control the servovalve. The source of fluid is a pressure compensated pump, or a fixed output pump with a large accumulator fed through an unload relief valve. The motor may be of the swash-plate type. As shown, a constant pressure pump 10 supplies a variable stroke hydraulic motor 14 through valve 12, the motor driving a tachometer generator 16 which provides a feedback signal to control the valve to compensate for spindle loading. The feedback circuit comprises an operational amplifier 22 and a booster amplifier 24. The stroke of the motor 14 is controlled by unit 26 in accordance with signals in binary code which are decoded by a unit 30 to provide preset stroke positions, and a reference voltage for the amplifier 22 through generator 32. Speed is restricted by an indicator 34 and logic unit 36. In another embodiment, the amplifier 24 is fed by two pressure transducers indicating the difference in pressure across the servovalve and the motor respectively.
GB3209/66A 1966-01-25 1966-01-25 Hydraulic motor control Expired GB1131121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3209/66A GB1131121A (en) 1966-01-25 1966-01-25 Hydraulic motor control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3209/66A GB1131121A (en) 1966-01-25 1966-01-25 Hydraulic motor control

Publications (1)

Publication Number Publication Date
GB1131121A true GB1131121A (en) 1968-10-23

Family

ID=9754012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3209/66A Expired GB1131121A (en) 1966-01-25 1966-01-25 Hydraulic motor control

Country Status (1)

Country Link
GB (1) GB1131121A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510671A1 (en) * 1981-08-03 1983-02-04 Linde Ag HYDRAULIC DRIVE ASSEMBLY WITH A HYDRAULIC ENGINE CONNECTED TO A PRESSURE NETWORK PIPE
FR2537801A1 (en) * 1982-12-10 1984-06-15 Commercial Shearing CONSTANT SPEED GENERATOR DRIVE SYSTEM AND SPEED CONTROL APPARATUS OF A TREE
CN105257494A (en) * 2015-11-26 2016-01-20 浙江大学 Multi-row digital axial plunger piston pump controlled by flow discrete combination switch and control method for multi-row digital axial plunger piston
CN105257495A (en) * 2015-11-26 2016-01-20 浙江大学 Flow dispersion switch control digital axial plunger pump and control method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510671A1 (en) * 1981-08-03 1983-02-04 Linde Ag HYDRAULIC DRIVE ASSEMBLY WITH A HYDRAULIC ENGINE CONNECTED TO A PRESSURE NETWORK PIPE
FR2537801A1 (en) * 1982-12-10 1984-06-15 Commercial Shearing CONSTANT SPEED GENERATOR DRIVE SYSTEM AND SPEED CONTROL APPARATUS OF A TREE
GB2132389A (en) * 1982-12-10 1984-07-04 Commercial Shearing Constant speed drive system
CN105257494A (en) * 2015-11-26 2016-01-20 浙江大学 Multi-row digital axial plunger piston pump controlled by flow discrete combination switch and control method for multi-row digital axial plunger piston
CN105257495A (en) * 2015-11-26 2016-01-20 浙江大学 Flow dispersion switch control digital axial plunger pump and control method thereof
CN105257495B (en) * 2015-11-26 2018-08-21 浙江大学 Flow discrete switch controls the control method of Digital axial piston pump

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