EP1826417A2 - Hydraulischer Aktor für Schwingtore oder Kipptüren mit Druckschalter - Google Patents

Hydraulischer Aktor für Schwingtore oder Kipptüren mit Druckschalter Download PDF

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Publication number
EP1826417A2
EP1826417A2 EP07380042A EP07380042A EP1826417A2 EP 1826417 A2 EP1826417 A2 EP 1826417A2 EP 07380042 A EP07380042 A EP 07380042A EP 07380042 A EP07380042 A EP 07380042A EP 1826417 A2 EP1826417 A2 EP 1826417A2
Authority
EP
European Patent Office
Prior art keywords
hydraulic
fluid
pressure
conduit
hydraulic actuator
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
EP07380042A
Other languages
English (en)
French (fr)
Other versions
EP1826417B1 (de
EP1826417A3 (de
Inventor
Antonio Alcaide Ots
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.)
Matz Erreka S Coop
Original Assignee
Matz Erreka S Coop
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Filing date
Publication date
Application filed by Matz Erreka S Coop filed Critical Matz Erreka S Coop
Publication of EP1826417A2 publication Critical patent/EP1826417A2/de
Publication of EP1826417A3 publication Critical patent/EP1826417A3/de
Application granted granted Critical
Publication of EP1826417B1 publication Critical patent/EP1826417B1/de
Not-in-force 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
    • F15B15/18—Combined units comprising both motor and pump

Definitions

  • the present invention relates to a hydraulic actuator for swing gates or overhead doors.
  • hydraulic units are frequently used for the operating of overhead doors such as that described, for example, in ES 8100441 A1 , which comprises an electric motor, a hydraulic pump powered by said electric motor and a hydraulic distributor that distributes a fluid driven by the pump towards a hydraulic cylinder, said hydraulic cylinder comprising a piston that is displaced by the pressure exerted by the fluid, causing the movement of a rod that acts directly on the door.
  • ES 2024105 A6 describes a hydraulic unit for the operating of swing gates that comprises a pump, a distributor, a hydraulic cylinder with a piston that is displaced by the pressure exerted by the fluid, and a drive mechanism of the rack and pinion type that turns the linear movement of the piston into a rotational movement of an shaft connected to an arm which acts directly on the door.
  • Said hydraulic units or actuators in the event that the door traps an obstacle during its opening or closing stroke, continue to push the door against said obstacle exerting a pressure that depends on the predetermined rating pressure until the operating time of the hydraulic actuator ends.
  • the objective of this invention is to provide a hydraulic actuator for overhead doors or swing gates as defined in the claims.
  • the hydraulic actuator incorporates a means for detecting either an increase in the pressure of the fluid above a predetermined rating pressure or, rather, a reduction in the pressure of the fluid below a normal operating pressure, as both situations occur when the door traps an obstacle.
  • the inventive hydraulic actuator is made up of a motor that powers a hydraulic pump and a hydraulic distributor that distributes a fluid driven by the hydraulic pump towards a hydraulic cylinder, in whose interior a piston is displaced by the action of the fluid originating from the hydraulic distributor.
  • the means for detecting said variations of pressure is generally included in the hydraulic distributor, although it may be connected to another integral element of the hydraulic actuator.
  • Said detection means comprises an electric switch and an actuating means which switches said switch on or off when it receives or stops receiving pressure.
  • the change in the switch condition is interpreted by a control as an obstacle encountered by the door during its stroke, as a result of which it sends to the hydraulic actuator an instruction to modify its operation.
  • Fig.1 shows a hydraulic actuator 1 for overhead doors that comprises a hydraulic pump 3 powered by an electric motor 2, a hydraulic distributor 4 that distributes the fluid driven by the hydraulic pump 3, a hydraulic cylinder 5 in whose interior is displaced a double effect piston 8 driven by the fluid originating from the distributor 4 and a cap 7 of the hydraulic cylinder 5, said hydraulic actuator 1 acting on the overhead door, through a drive mechanism, that may be of the linear type such as a rod 8b, built into the piston 8, that passes through the cap 7 being fixed to the door by a fastening means, or for example, of the rack and pinion type, not included in the figures, which is powered by the piston 8 converting the axial displacement of the piston 8 into a rotational movement of the door shaft.
  • a drive mechanism that may be of the linear type such as a rod 8b, built into the piston 8 that passes through the cap 7 being fixed to the door by a fastening means, or for example, of the rack and pinion type, not included in the figures, which is powered by the piston 8
  • the hydraulic cylinder 5 comprises a pair of chambers separated by the piston 8, where a first chamber 27 is limited by the piston 8 and the hydraulic distributor 4, and a second chamber 28 is limited by the piston 8 and the cap 7, said second chamber 28 being connected to the hydraulic distributor 4 by an external return conduit 15.
  • Figs. 2-8 show the hydraulic distributor 4, which includes a slide 6 fitted into a housing 12 throughout which it is displaced, driven by the fluid originated from the hydraulic pump 3 through a first impulsion conduit 20 and a second impulsion conduit 21.
  • the slide 6 delimits in the housing 12, a first cavity 50 connected to the first impulsion conduit 20, a second cavity 51 connected to the second impulsion conduit 21 and an intermediate cavity 52 positioned between both cavities 50,51.
  • the hydraulic distributor 4 comprises a primary regulation valve 25 and a secondary regulation valve 26, both set at a specific rating pressure, and which are housed respectively in a first cavity 10 and a second cavity 11 of the hydraulic distributor 4, both cavities 10,11 being connected to the housing 12, respectively, by a primary connection conduit 13 and a secondary connection conduit 14.
  • the hydraulic distributor 4 is connected to the first chamber 27 by a primary distribution conduit 24, and to the return conduit 15, connected to the second chamber 28 by a secondary distribution conduit 29, which at the same time, is connected to the housing 12 by the secondary connection conduit 14 of the secondary regulation valve 26.
  • the primary regulation valve 25 is connected to the secondary regulation valve 26 by an intermediate conduit 18 and each regulation valve 25,26 comprises respectively a top 40,41, a spring 42,43 and a screw 44,45 with which the predetermined rating pressure is regulated.
  • the hydraulic distributor 4 incorporates a means 30 for detecting pressures over the rating pressures of the regulating valves 25,26, which comprises an electric switch 9 fixed to one of the side walls 34 of said hydraulic distributor 4 and with a contact member 9b oriented towards the interior of said hydraulic distributor 4, a derivation conduit 33 connected directly to the cavity 10 and an actuating means 31, such as a ball, that operates said contact member 9b, said ball being housed and guided in a cylindrical cavity 32 positioned between the derivation conduit 33 and the electric switch 9.
  • a means 30 for detecting pressures over the rating pressures of the regulating valves 25,26 which comprises an electric switch 9 fixed to one of the side walls 34 of said hydraulic distributor 4 and with a contact member 9b oriented towards the interior of said hydraulic distributor 4, a derivation conduit 33 connected directly to the cavity 10 and an actuating means 31, such as a ball, that operates said contact member 9b, said ball being housed and guided in a cylindrical cavity 32 positioned between the derivation conduit 33 and the electric switch 9.
  • Fig. 3 shows the hydraulic distributor 4 comprised in the hydraulic actuator 1 in the door closing condition, during which time the motor 2 powers the hydraulic pump 3 driving the fluid through a first impulsion conduit 20 of the hydraulic distributor 4, so that the slide 6 is displaced in the housing 12 to the left, according to Fig. 3, enabling the passage of fluid to the first chamber 27 through the primary distribution conduit 24 and closing the passage of said fluid towards the secondary distribution conduit 29.
  • the piston 8 is displaced due to the pressure exerted by the fluid in the first chamber 27, towards its end of stroke where the door is completely closed. During this displacement, the fluid comprised in the second chamber 28 is evacuated towards the hydraulic distributor 4 through the return conduit 15 towards the intermediate chamber 52 of the housing 12, being sucked by the hydraulic pump 3.
  • Fig.4 shows the hydraulic distributor 4 in a situation in which the door encounters an obstacle during its closing stroke.
  • the motor 2 continues to operate, driving fluid through the first impulsion conduit 20 without the piston 8 being displaced, as a result of which the pressure of the fluid in the hydraulic distributor 4 and the first chamber 27 increases until the rating pressure of the primary regulation valve 25 is exceeded.
  • the primary top 40 of said regulation valve 25 is displaced against the primary spring 42, enabling the passage of fluid towards the derivation conduit 33.
  • the pressure of said fluid displaces the ball 31 towards the contact member of the switch 9b activating it, so that it sends a signal to a control panel, not shown, so that the motor 2 give the command to reverse the operation.
  • Fig.5 shows the hydraulic distributor 4 in the door opening condition, in which condition the motor 2 powers the hydraulic pump 3 in an anti-clockwise direction, driving the fluid through the second impulsion conduit 21, which displaces the slide 6 in the housing 12 towards the right side, according to Fig. 5, so that it enables the passage of fluid to the second chamber 28 through the secondary distribution chamber 29 and the return conduit 15 and closes the passage of said fluid towards the primary distribution conduit 24.
  • the piston 8 is displaced, by the effect of the pressure exerted in the second chamber 28, towards the hydraulic distributor 4 until its end of stroke, where the door is completely open. During this displacement of the piston 8, the fluid comprised in the first chamber 27 flows, through the primary distribution conduit 24 towards the intermediate chamber 52 of the housing 12, it being sucked by the hydraulic pump 3.
  • Fig.6 shows the hydraulic distributor 4 in a situation in which the door encounters an obstacle in its closing stroke.
  • the door traps the object during its opening stroke, it continues to drive fluid through the secondary distribution conduit 29 towards the second chamber 28, without the piston 8 being displaced, as a result of which the pressure of the fluid in the hydraulic distributor 4 and the second chamber 28 increases until the rating pressure of the secondary regulation valve 26 is exceeded.
  • the secondary top 41 is displaced against the secondary spring 43, enabling the passage of fluid towards the derivation conduit 33, through the intermediate conduit 18.
  • the pressure of said fluid displaces the ball 31 towards the contact member of the switch 9b activating it, so that it sends a signal to a control panel, not shown in the figures, to act as programmed.
  • the detection means 30 detects pressures below a normal operating pressure of the fluid comprised in the derivation conduit 33, which is connected directly to the intermediate cavity 52 of the housing 12.
  • the electric switch 9 at the same time, is fixed onto a base of the hydraulic distributor 4 opposite the base where the regulation valves 25,26 are housed and the actuating means 31 is positioned between the derivation conduit 33 and said electric switch 9.
  • the pressure of the fluid in the second chamber 28 falls below the normal operating pressure
  • the door traps the object in its opening stroke see Fig.8 it is the pressure of the fluid in the first chamber 27 that falls below the normal operating pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
EP07380042A 2006-02-23 2007-02-20 Hydraulischer Aktor für Schwingtore oder Kipptüren mit Druckschalter Not-in-force EP1826417B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200600432A ES2319243B1 (es) 2006-02-23 2006-02-23 Actuador hidraulico para puertas batientes o basculantes con detector de variacion de presion.

Publications (3)

Publication Number Publication Date
EP1826417A2 true EP1826417A2 (de) 2007-08-29
EP1826417A3 EP1826417A3 (de) 2009-11-18
EP1826417B1 EP1826417B1 (de) 2012-04-11

Family

ID=38006933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07380042A Not-in-force EP1826417B1 (de) 2006-02-23 2007-02-20 Hydraulischer Aktor für Schwingtore oder Kipptüren mit Druckschalter

Country Status (4)

Country Link
EP (1) EP1826417B1 (de)
AT (1) ATE553301T1 (de)
ES (2) ES2319243B1 (de)
MX (1) MX2007002065A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2811162A4 (de) * 2012-01-30 2015-11-25 Jong Hee Lee Intelligentes hybrid-stellglied
US20230124513A1 (en) * 2020-12-23 2023-04-20 Ican Company Ltd. Electro-hydraulic actuator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8100441A1 (es) 1979-05-16 1980-11-01 Matias Marques Sanchez Cilindro hidraulico autonomo perfeccionado de doble efecto
ES2024105A6 (es) 1990-03-29 1992-02-16 Subira Bonet Antonio Grupo hidraulico,en especial para el accionamiento de puertas basculanes.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918795A (en) * 1955-09-06 1959-12-29 Ramsey Corp Electro-hydraulic actuating cylinder
US3084513A (en) * 1960-03-08 1963-04-09 Gen Controls Co Electrohydraulic actuator
US3698187A (en) * 1971-01-28 1972-10-17 Henry H Logan Actuator
IT1220997B (it) * 1984-09-25 1990-06-21 Fadini Meccanica Dispositivo per la frenatura a fine corsa di martinetti idraulici,in particolare per l'apertura e la chiusura di cancelli
AT405384B (de) * 1997-11-12 1999-07-26 Hoerbiger Gmbh Anordnung und verfahren zur hydraulischen betätigung beweglicher teile
US6282893B1 (en) * 1999-08-19 2001-09-04 Delaware Capital Formation, Inc. Self-contained actuator
DE20201058U1 (de) * 2002-01-25 2002-04-18 Festo Ag & Co Pneumatikantrieb

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES8100441A1 (es) 1979-05-16 1980-11-01 Matias Marques Sanchez Cilindro hidraulico autonomo perfeccionado de doble efecto
ES2024105A6 (es) 1990-03-29 1992-02-16 Subira Bonet Antonio Grupo hidraulico,en especial para el accionamiento de puertas basculanes.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2811162A4 (de) * 2012-01-30 2015-11-25 Jong Hee Lee Intelligentes hybrid-stellglied
US20230124513A1 (en) * 2020-12-23 2023-04-20 Ican Company Ltd. Electro-hydraulic actuator
US11815108B2 (en) * 2020-12-23 2023-11-14 Ican Company Ltd. Electro-hydraulic actuator

Also Published As

Publication number Publication date
ATE553301T1 (de) 2012-04-15
MX2007002065A (es) 2008-11-18
EP1826417B1 (de) 2012-04-11
ES2319243B1 (es) 2010-02-02
ES2319243A1 (es) 2009-05-05
ES2383914T3 (es) 2012-06-27
EP1826417A3 (de) 2009-11-18

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