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EP0092480A1 - Hydraulischer Stellmotor - Google Patents

Hydraulischer Stellmotor Download PDF

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Publication number
EP0092480A1
EP0092480A1 EP83400756A EP83400756A EP0092480A1 EP 0092480 A1 EP0092480 A1 EP 0092480A1 EP 83400756 A EP83400756 A EP 83400756A EP 83400756 A EP83400756 A EP 83400756A EP 0092480 A1 EP0092480 A1 EP 0092480A1
Authority
EP
European Patent Office
Prior art keywords
jack
servo
piston
solenoid valve
motor according
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.)
Granted
Application number
EP83400756A
Other languages
English (en)
French (fr)
Other versions
EP0092480B1 (de
Inventor
Jacques Henri Chatelin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83400756T priority Critical patent/ATE25132T1/de
Publication of EP0092480A1 publication Critical patent/EP0092480A1/de
Application granted granted Critical
Publication of EP0092480B1 publication Critical patent/EP0092480B1/de
Expired legal-status Critical Current

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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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input
    • F15B7/006—Rotary pump input
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/126—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of actuators of the standard type with special circuit controlling means

Definitions

  • the invention relates to a hydraulic servo motor with displacement by direct transfer of the liquid.
  • the present invention relates to a hydraulic servo motor comprising a jack intended to be connected by its rod to a movable member to be moved and to be positioned precisely, this jack being completely filled with liquid, servo -motor characterized in that the displacement of the piston is carried out by direct transfer of the liquid from one chamber to the other of the jack by at least one electric pump with vibrator supplied from an alternating current source and in that a so-called safety solenoid valve, open at rest is connected to communicate the two chambers of the jack.
  • the jack is a double-acting jack with a double rod.
  • a spring is arranged between the cylinder and the piston of the jack, in order to constantly tend to bring the piston towards one end of the cylinder.
  • a solenoid valve called reversing the direction of movement is connected to put the two chambers in communication. cylinder.
  • the object of the present invention is to produce a hydraulic servo-motor which provides direct servo-control of orders coming from a process computer without analog conversion, nor ancillary devices, without requiring a network of pressurized liquid and the consumption of which in electrical energy is low and limited in time to the duration of the servo motor control pulses.
  • the servo motor according to the invention is of great movement or positioning precision, while the speed of movement or the power is easily adaptable.
  • the reversal of the direction of movement is instantaneous, without dead zone, and therefore ensures the proportionality of the effect obtained with respect to the control order.
  • This servo motor is also compact, low in weight and cost, as well as highly reliable.
  • the servo motor according to the invention will apply to the precise or powerful displacement or positioning of any controlled member, such as control valves, tools of machine tools, etc.
  • the servo motor comprises a double-acting cylinder 1 and double rod, the piston 2 being provided with two rods 31, 3 2 of the same sec- which are intended to be connected to the organ to be enslaved.
  • the chambers 1 1 and 1 2 delimited by the piston 2 are of the same section so as to obtain an identical displacement of the piston 2 in one direction or another for the same volume of fluid introduced through the end orifices 4 1 , 4 2 of the cylinder 1.
  • the vibrator pump 6, as well as the solenoid valve 8 are supplied from the AC voltage U of the sector by means of reversing relays 9 1 , 9 2 themselves controlled by the time pulses coming from a computer.
  • the solenoid valve 7 which is open when it is not energized, is supplied directly by the voltage U of the mains or other network and is therefore normally closed.
  • the vibrator pump 6 When the computer supplies a control pulse C + to relay 9 1 , the vibrator pump 6 is energized, the vibrations of this pump being established for the duration of the control pulse C + and at a frequency corresponding to the frequency of the mains voltage.
  • the spring 11 disposed in the chamber 1 1 1 of the cylinder and acting on the piston 2, moves the piston in the opposite direction of the arrow F at a controlled rate by the section of the calibrated orifice 10.
  • the solenoid valve 8 has been replaced by a second vibrator pump 12 which is in head-to-tail position relative to the pump 6.
  • one of the two pumps 6 or 12 is supplied by the mains voltage U via the relays 9 1 or 9 2 , depending on the control pulse C + or C-coming from the computer.
  • the circuit 5 comprises four solenoid valves 7 1 , 7 2 , 8 1 , 8 2 which are closed when they are not energized, that is to say when they are at rest.
  • the diagonal of the bridge is formed by the vibrator pump 6, and the chambers 1 1 and 1 2 of the jack are isolated, the piston 2 being stationary.
  • the vibrator pump sends the liquid to the chamber 1 2 of the jack by the following circuit, chamber 1 1 , port 4 2 , solenoid valve 8 1 , pump 6, solenoid valve 7 2 which being supplied is open and port 4 1
  • the fluid circuit is supplied by a reservoir 13 and the actuator cylinder 14 is a ram single-acting, the piston 15 comprises a single control rod 15 1.
  • This jack comprises a single compression chamber 16 delimited by the piston 15,. while a spring 17 acts on this piston 15 to ensure either one of the directions of control of the rod 15 1 by tensioning and therefore opening of the solenoid valve 8, or the return of this rod 15 1 towards the safety position when the solenoid valve 7 is cut off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve Device For Special Equipments (AREA)
  • Servomotors (AREA)
  • Actuator (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Control Of Electric Motors In General (AREA)
  • Reciprocating Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Hydraulic Motors (AREA)
EP83400756A 1982-04-19 1983-04-18 Hydraulischer Stellmotor Expired EP0092480B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83400756T ATE25132T1 (de) 1982-04-19 1983-04-18 Hydraulischer stellmotor.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8206683A FR2525292B1 (fr) 1982-04-19 1982-04-19 Servo-moteur hydraulique
FR8206683 1982-04-19

Publications (2)

Publication Number Publication Date
EP0092480A1 true EP0092480A1 (de) 1983-10-26
EP0092480B1 EP0092480B1 (de) 1987-01-21

Family

ID=9273133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400756A Expired EP0092480B1 (de) 1982-04-19 1983-04-18 Hydraulischer Stellmotor

Country Status (10)

Country Link
US (1) US4642986A (de)
EP (1) EP0092480B1 (de)
JP (1) JPS59500575A (de)
AT (1) ATE25132T1 (de)
AU (1) AU559849B2 (de)
DE (1) DE3369368D1 (de)
DK (1) DK156310C (de)
FI (1) FI80332C (de)
FR (1) FR2525292B1 (de)
WO (1) WO1983003643A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572201A1 (fr) * 1984-10-19 1986-04-25 Penn Ernest Commande a distance electrique

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637404A1 (de) * 1986-11-03 1987-11-26 Bornemann & Haller Kg Stellantrieb
US4910961A (en) * 1987-05-21 1990-03-27 Vertran Manufacturing Company Hydraulic door opening or closing device
US5107677A (en) * 1987-05-21 1992-04-28 Vertran Manufacturing Company Hydraulic door actuator
US5161957A (en) * 1987-05-21 1992-11-10 Vertran Manufacturing Company Hydraulic door actuator
JPH0346002U (de) * 1989-09-13 1991-04-26
FI100677B (fi) * 1996-09-13 1998-01-30 Multilift Oy Menetelmä hydraulisesti käytetyn koneen liikenopeuden ohjaamiseksi, hy draulisesti käytetyn koneen käyttöjärjestelmä ja ohjauslaitteisto
DE19719080C1 (de) * 1997-04-30 1998-09-10 Mannesmann Ag Elektrohydraulisches Betätigungsgerät für Bremsen für Industrieanlagen
US20060168955A1 (en) * 2005-02-03 2006-08-03 Schlumberger Technology Corporation Apparatus for hydraulically energizing down hole mechanical systems
US20060276786A1 (en) * 2005-05-25 2006-12-07 Brinker Mark R Apparatus for accurately positioning fractured bone fragments toward facilitating use of an external ring fixator system
US8061261B2 (en) * 2007-02-28 2011-11-22 Raytheon Company Antagonistic fluid control system for active and passive actuator operation
US7954252B2 (en) * 2008-06-06 2011-06-07 Schlumberger Technology Corporation Methods and apparatus to determine and use wellbore diameters
EP2678570B1 (de) * 2011-02-23 2015-04-29 Schaeffler Technologies AG & Co. KG Hydraulische einrichtung zur betätigung einer kupplung
WO2014159861A1 (en) * 2013-03-14 2014-10-02 Schlumberger Canada Limited Tool for measuring wellbore geometry
DE102015119108A1 (de) * 2015-11-06 2017-05-11 Pleiger Maschinenbau Gmbh & Co. Kg Verfahren und Vorrichtung zum Ansteuern einer hydraulisch betätigten Antriebseinheit einer Armatur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2117466A1 (de) * 1970-04-15 1971-10-28 Kaelle Regulatorer Ab Hydraulischer Schrittmotor
FR2082346A5 (de) * 1970-03-11 1971-12-10 Snecma

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948118A (en) * 1955-02-28 1960-08-09 Honeywell Regulator Co Electromagnetic pump actuated device
CH563532A5 (de) * 1973-03-14 1975-06-30 Buehler Ag Geb
DE2500096C3 (de) * 1975-01-03 1984-08-02 Sauer Getriebe KG, 2350 Neumünster Hydraulische Schaltungseinrichtung zur Druckmittelwegesteuerung mit Konstantregelung des Druckmittelstroms für einen doppeltwirkenden Hydromotor
US4416187A (en) * 1981-02-10 1983-11-22 Nystroem Per H G On-off valve fluid governed servosystem
US4437385A (en) * 1982-04-01 1984-03-20 Deere & Company Electrohydraulic valve system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082346A5 (de) * 1970-03-11 1971-12-10 Snecma
DE2117466A1 (de) * 1970-04-15 1971-10-28 Kaelle Regulatorer Ab Hydraulischer Schrittmotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PRODUCT LICENSING INDEX, no. 82, fevrier 1971, page 33, Industrial Opportunities Ltd., Havant, GB. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572201A1 (fr) * 1984-10-19 1986-04-25 Penn Ernest Commande a distance electrique

Also Published As

Publication number Publication date
AU1470383A (en) 1983-11-04
FR2525292B1 (fr) 1986-12-19
JPS59500575A (ja) 1984-04-05
FI80332C (fi) 1990-05-10
FI834670A0 (fi) 1983-12-19
WO1983003643A1 (fr) 1983-10-27
US4642986A (en) 1987-02-17
DK584783D0 (da) 1983-12-19
FI834670L (fi) 1983-12-19
ATE25132T1 (de) 1987-02-15
DK156310B (da) 1989-07-31
FI80332B (fi) 1990-01-31
DK156310C (da) 1990-02-26
JPH0357324B2 (de) 1991-08-30
FR2525292A1 (fr) 1983-10-21
DK584783A (da) 1983-12-19
AU559849B2 (en) 1987-03-19
DE3369368D1 (en) 1987-02-26
EP0092480B1 (de) 1987-01-21

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