GB1131121A - Hydraulic motor control - Google Patents
Hydraulic motor controlInfo
- 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
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.
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)
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 |
-
1966
- 1966-01-25 GB GB3209/66A patent/GB1131121A/en not_active Expired
Cited By (6)
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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