FR3103863B1 - DEVICE FOR MONITORING THE POSITION OF A CYLINDER ROD AND HYDRAULIC LINEAR ACTUATOR INCLUDING SUCH A DEVICE - Google Patents

DEVICE FOR MONITORING THE POSITION OF A CYLINDER ROD AND HYDRAULIC LINEAR ACTUATOR INCLUDING SUCH A DEVICE Download PDF

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Publication number
FR3103863B1
FR3103863B1 FR1913262A FR1913262A FR3103863B1 FR 3103863 B1 FR3103863 B1 FR 3103863B1 FR 1913262 A FR1913262 A FR 1913262A FR 1913262 A FR1913262 A FR 1913262A FR 3103863 B1 FR3103863 B1 FR 3103863B1
Authority
FR
France
Prior art keywords
monitoring
linear actuator
cylinder rod
actuator including
hydraulic linear
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.)
Active
Application number
FR1913262A
Other languages
French (fr)
Other versions
FR3103863A1 (en
Inventor
Eric Julien
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.)
Nexter Systems SA
Original Assignee
Nexter Systems SA
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 Nexter Systems SA filed Critical Nexter Systems SA
Priority to FR1913262A priority Critical patent/FR3103863B1/en
Publication of FR3103863A1 publication Critical patent/FR3103863A1/en
Application granted granted Critical
Publication of FR3103863B1 publication Critical patent/FR3103863B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • 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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
    • F41A9/39—Ramming arrangements
    • F41A9/42—Rammers separate from breech-block
    • F41A9/44—Fluid-operated piston rammers
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/045—Compensating for variations in viscosity or temperature
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)

Abstract

L’invention porte sur un dispositif (12) de contrôle du positionnement d’une tige (3,4) d’un piston (3p,4p) d’un vérin (2) à double effet, comportant une première chambre (5) et une deuxième chambre (7). Ce dispositif de contrôle (12) est caractérisé en ce qu’il comporte au moins un réservoir cylindrique (12a) renfermant un piston libre (13) et dont un premier compartiment (14) est destiné à être raccordé par une liaison hydraulique (11) à la deuxième chambre (7) du vérin (2), et un second compartiment (15) est destiné à être raccordé au circuit hydraulique de commande du vérin (2). Le réservoir (12a) comporte au moins deux capteurs (C1,C2,C3,C4) aptes à détecter le passage du piston libre (13) devant lui. Figure à publier avec l’abrégé : Fig. 1The invention relates to a device (12) for controlling the positioning of a rod (3,4) of a piston (3p, 4p) of a double-acting cylinder (2), comprising a first chamber (5). and a second bedroom (7). This control device (12) is characterized in that it comprises at least one cylindrical reservoir (12a) containing a free piston (13) and of which a first compartment (14) is intended to be connected by a hydraulic connection (11). to the second chamber (7) of the cylinder (2), and a second compartment (15) is intended to be connected to the hydraulic control circuit of the cylinder (2). The reservoir (12a) comprises at least two sensors (C1, C2, C3, C4) capable of detecting the passage of the free piston (13) in front of it. Figure to be published with the abstract: Fig. 1

FR1913262A 2019-11-28 2019-11-28 DEVICE FOR MONITORING THE POSITION OF A CYLINDER ROD AND HYDRAULIC LINEAR ACTUATOR INCLUDING SUCH A DEVICE Active FR3103863B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1913262A FR3103863B1 (en) 2019-11-28 2019-11-28 DEVICE FOR MONITORING THE POSITION OF A CYLINDER ROD AND HYDRAULIC LINEAR ACTUATOR INCLUDING SUCH A DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1913262 2019-11-28
FR1913262A FR3103863B1 (en) 2019-11-28 2019-11-28 DEVICE FOR MONITORING THE POSITION OF A CYLINDER ROD AND HYDRAULIC LINEAR ACTUATOR INCLUDING SUCH A DEVICE

Publications (2)

Publication Number Publication Date
FR3103863A1 FR3103863A1 (en) 2021-06-04
FR3103863B1 true FR3103863B1 (en) 2021-12-03

Family

ID=70918483

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1913262A Active FR3103863B1 (en) 2019-11-28 2019-11-28 DEVICE FOR MONITORING THE POSITION OF A CYLINDER ROD AND HYDRAULIC LINEAR ACTUATOR INCLUDING SUCH A DEVICE

Country Status (1)

Country Link
FR (1) FR3103863B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439706A (en) * 1966-03-02 1969-04-22 Edwin R Barrett Remote valve actuation and indication system
DE3014432A1 (en) * 1980-04-15 1981-10-22 Zimmermann & Jansen GmbH, 5160 Düren DEVICE FOR ACCURATE POSITION REPORTING OF A DOUBLE-SIDED APPLICABLE PISTON IN A HYDRAULIC WORKING CYLINDER
NO334269B1 (en) * 2012-05-29 2014-01-27 Fmc Technologies Ltd Determination of position for hydraulic submarine actuator

Also Published As

Publication number Publication date
FR3103863A1 (en) 2021-06-04

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