EP1013941B1 - Aménagement pour commander un dispositif de positionnement - Google Patents

Aménagement pour commander un dispositif de positionnement Download PDF

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Publication number
EP1013941B1
EP1013941B1 EP99125318A EP99125318A EP1013941B1 EP 1013941 B1 EP1013941 B1 EP 1013941B1 EP 99125318 A EP99125318 A EP 99125318A EP 99125318 A EP99125318 A EP 99125318A EP 1013941 B1 EP1013941 B1 EP 1013941B1
Authority
EP
European Patent Office
Prior art keywords
sealing
assembly
switching
valves
control chamber
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 - Lifetime
Application number
EP99125318A
Other languages
German (de)
English (en)
Other versions
EP1013941A1 (fr
Inventor
Heinrich Dettmann
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.)
Buerkert Werke GmbH and Co KG
Original Assignee
Buerkert Werke GmbH and Co KG
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 Buerkert Werke GmbH and Co KG filed Critical Buerkert Werke GmbH and Co KG
Publication of EP1013941A1 publication Critical patent/EP1013941A1/fr
Application granted granted Critical
Publication of EP1013941B1 publication Critical patent/EP1013941B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • 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
    • F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0438—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being of the nozzle-flapper 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0814—Monoblock manifolds
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0875—Channels for electrical components, e.g. for cables or sensors
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • F15B2211/3127—Floating position connecting the working ports and the return line
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87201—Common to plural valve motor chambers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87209—Electric

Definitions

  • the invention relates to an assembly of a pilot valve and four Switching valves, in particular for controlling actuators, wherein the Pilot valve is a 4/3-way valve.
  • Such an assembly may form a 5/3 or 4/3-way valve and allows, for example, a double-acting hydraulic cylinder as an actuator head for.
  • pilot valves usually slide valves used, in particular two electromagnetic pilot valves, wherein the Valve center position is taken at non-energized pilot valves and for the first and the second eccentric switching position of the slider that one or the other pilot valve is controlled.
  • a similarly high or even higher input tax expenditure exists with corresponding diaphragm valves in 5/3 and 4/3 ways. Especially when using These valves in valve islands lined-up design results in a high Effort for the preparation of the electrical connections of the solenoid contacts the pilot valves to an electrical control terminal block
  • the object of the invention is the control of fluidbetätigten To simplify 5 / 3- and 4/3-way valves such that all three switching positions the valves switched by a single solenoid of a pilot valve can be.
  • the pilot valve includes a housing in which two control chambers are formed, which are insulated from each other and each have a working connection and two pressure ports, with two of the ports each a sealing seat are provided, and a switching element which is pivotable in Housing is mounted and in each switching chamber has a sealing part, which with the sealing seats can interact such that these open or are closed, and an actuator for the switching element, wherein the Actuator can bring the switching element in three positions.
  • the actuating cylinder 1 has a piston 2 and a working chamber 3 on the left side of the piston 2 and a working chamber 4 on the right side on the working chamber 3 is with a Terminal A provided, and the working chamber 4 is provided with a terminal B.
  • the three switching examples differ with regard to their center position.
  • a float circuit is realized at the two working chambers 3, 4 are connected to the return line R.
  • the piston 2 is therefore free to move.
  • the switching example in illustration b) realized in the middle position a blocking position in which the two working chambers 3, 4 each with the pressure P be charged. The piston 2 is thus blocked against movement.
  • Representation c) is also a blocking position realized, in which case the two Working chambers 3, 4 are each closed off, so closed. Again, the piston is 2 blocked.
  • An excitation voltage U can be applied to the solenoid valves.
  • the Switching valves are provided with a pressure port P and a return port R.
  • the letter P stands in the table for a pressure connection
  • the letter R stands for a pressureless return line.
  • the switching states 1 to 3 shown in the table correspond to the circuit FIG. 1a).
  • the switching states 2 to 4 shown in the table correspond to the circuit FIG. 1b).
  • the switching states 1 to 3 shown in Table 2 correspond to the circuit according to Figure 1c).
  • the switching state 4 shown in Table 2 corresponds to a short circuit from P to R.
  • the pilot element 10 has a housing 12, in which two adjacent, mutually insulated control chambers 20, 30th formed, of which in Figure 4 only one can be seen. Each control chamber opens Working connection and two pressure connections, whereby the working connection with A or B is designated and the pressure ports are designated P and R respectively. Two of the connections in each control chamber 20 and 30 are provided with a sealing seat 21, 22 and 31, 32, respectively. With the sealing seats 21, 22 and 31, 32 operates generally by the reference numeral 14th provided switching element together. The switching element 14 can by acting on a Operating extension 15 from a rest position out into a first and a second position to be moved. Overall, therefore, three positions of the switching element 14 are possible.
  • an actuator 16 is provided (see in particular Figure 6), for example, as an electromagnetic drive with a polarized drive element is executed, the permanent magnet in the de-energized state a coil causes a middle position of the actuating extension 15 and at Current flow as a function of the current direction, the actuating arm either in Direction of the arrow 1 or in the direction of the arrow 2 adjusted.
  • FIG. 6 the two positions 1 and 2 are one on the actuating extension 15 attached magnets 17 shown.
  • the coil of the actuator is with the 18, and the switchable voltage source is shown in FIG Reference numeral 19 provided.
  • the basic structure of the switching element 14, which consists of a core 11 and a this surrounding elastomer 13, and the storage of the switching element in Housing 12 is basically known from German Utility Model 295 07 380, on the express reference is made. The details of the design of the switching element will therefore not be explained further here.
  • the switching element 14 projects into each control chamber 20, 30 with a Seal member 24 and 34 into it.
  • the two sealing parts 24, 34 are fixed to the Operating extension 15 are connected and simultaneously with the actuating extension emotional.
  • the two sealing parts 24, 30 are arranged in different planes, ie mutually crossed.
  • those on the upper side of the Control chambers 20, 30 arranged sealing seats 21, 31 as well as on the lower side of the Control chambers arranged sealing seats 22, 32 each at the same level.
  • the circuit shown in FIG. 9 is based on the circuit shown in FIG used instead of the solenoid valves M shown there, the known from Figures 4 to 8 Pilot element.
  • the circuit shown corresponds to the example shown in FIG. 1a).
  • a floating circuit is realized, in which the two Working chambers of the actuator are connected to R.
  • FIG. 11 shows the pilot control element known from FIG. 9 with that from FIG. 3 known circuit of the switching valves combined. This results in the known from Figure 1c) Circuit, wherein in the rest position shown in Figure 11, in which the two Pressure ports P of the pilot element are blocked, both the two Working chambers of the actuator and the ports P, R are locked.
  • valve block is shown by Combination of the switching valves S with a pilot element according to FIGS. 4 to 8 achieved.
  • Well recognizable is the particularly compact design, which results because only one Pilot coil is required.
  • a special suitability for the results Use in a valve series system with continuous pneumatic Supply strip and electrical connection strip for the power supply or Control of the coils with digital pulses from fieldbus technology.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (5)

  1. Ensemble constitué d'une vanne pilote (10) et de quatre soupapes de commande (S), en particulier pour piloter des organes de commande (1), la vanne pilote (10) étant un distributeur 4/3 voies, caractérisé en ce que la vanne pilote comprend un boítier (12) dans lequel sont formées deux chambres de commande (20 ; 30) qui sont isolées l'une de l'autre et qui présentent chacune un raccord de travail ainsi que deux raccords de pression, deux des raccords étant chacun munis d'un siège d'étanchéité (21, 22 ; 31, 32), ainsi que d'un élément de commande (14) qui est monté à pivotement dans le boítier (12) et qui présente dans chaque chambre de commande (20 ; 30) une pièce d'étanchéité (24 ; 34) qui peut coopérer avec les sièges d'étanchéité (21, 22 ; 31, 32), de telle sorte que ceux-ci soient ouverts ou fermés, et un organe d'actionnement (16) pour l'élément de commande (14), l'organe d'actionnement (16) pouvant amener l'élément de commande (14) dans trois positions.
  2. Ensemble selon la revendication 1, caractérisé en ce que les sièges d'étanchéité (21, 22 ; 31, 32) d'une chambre de commande (20 ; 30) sont agencés en opposition l'un par rapport à l'autre d'un côté et de l'autre côté de la chambre de commande et la pièce d'étanchéité (24, 34) agencée dans cette chambre de commande est en appui sur l'un ou l'autre siège d'étanchéité.
  3. Ensemble selon la revendication 2, caractérisé en ce que les sièges d'étanchéité (24 ; 34) agencés dans les deux chambres de commande s'étendent dans des plans différents et en position de repos, l'une des pièces d'étanchéité (24) est en appui sur le siège d'étanchéité (21) qui est agencé d'un côté de la chambre de commande correspondante (20), tandis que l'autre pièce d'étanchéité (34) est en appui sur le siège d'étanchéité (32) qui est agencé de l'autre côté de l'autre chambre de commande (30).
  4. Ensemble selon l'une des revendications précédentes, caractérisé en ce que les vannes de commande (S) sont des soupapes à membrane.
  5. Ensemble selon l'une des revendications précédentes, caractérisé en ce que les vannes de commande (S) ont une fonction d'amplification du débit.
EP99125318A 1998-12-23 1999-12-20 Aménagement pour commander un dispositif de positionnement Expired - Lifetime EP1013941B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29822958U 1998-12-23
DE29822958U DE29822958U1 (de) 1998-12-23 1998-12-23 Baugruppe zur Ansteuerung von Stellgliedern

Publications (2)

Publication Number Publication Date
EP1013941A1 EP1013941A1 (fr) 2000-06-28
EP1013941B1 true EP1013941B1 (fr) 2005-02-23

Family

ID=8067115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125318A Expired - Lifetime EP1013941B1 (fr) 1998-12-23 1999-12-20 Aménagement pour commander un dispositif de positionnement

Country Status (3)

Country Link
US (1) US6286547B1 (fr)
EP (1) EP1013941B1 (fr)
DE (2) DE29822958U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357335B1 (en) * 1999-12-23 2002-03-19 Sox Corporation Pneumatic volume booster for valve positioner
DE10242726A1 (de) * 2002-09-13 2004-03-25 Imi Norgren-Herion Fluidtronic Gmbh & Co. Kg Mehrwegeventil
US7156121B2 (en) * 2003-12-11 2007-01-02 Cox Christopher L Valve position monitor and method of use
DE102004045057A1 (de) * 2004-09-15 2006-03-30 Bar-Pneumatische Steuerungssysteme Gmbh Steuerventil
US8302933B2 (en) 2005-06-27 2012-11-06 Buerkert Werke Gmbh Valve device

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569881A (en) * 1945-06-07 1951-10-02 Parker Appliance Co Remotely controlled reversing valve
US2891518A (en) * 1956-12-10 1959-06-23 Krapf John Albert Valve mechanism for controlling delivery of fluid under pressure to a fluid operatedmotor
FR1249404A (fr) 1959-11-14 1960-12-30 Rech Etudes Production Sarl Vérin hydraulique autonome à alimentation électrique et à commande électrique
USRE26028E (en) * 1963-05-16 1966-05-17 Pilot operated control valve mechanism
US3411536A (en) * 1966-07-06 1968-11-19 Koehring Co Pilot operated control valve mechanism
US3556144A (en) 1969-11-10 1971-01-19 Nordberg Manufacturing Co Directional control valve and method of making
USRE29481E (en) * 1971-02-01 1977-11-29 Fluid Devices, Ltd. Multi-way directional fluid flow control valve arrangement
DE2147439A1 (de) * 1971-09-23 1973-04-05 Abex Gmbh Hydraulische schaltung und ventilanordnung
JPS58180877A (ja) * 1982-02-12 1983-10-22 Toyooki Kogyo Co Ltd 方向制御弁装置
US4540020A (en) * 1984-04-20 1985-09-10 Taplin John F Supply control valve with integral pressure limiter
US4516605A (en) * 1984-04-20 1985-05-14 Taplin John F Four-way control valve
LU85774A1 (fr) * 1985-02-13 1985-07-24 Hydrolux Sarl Hydraulischer steuerblock
US4765370A (en) * 1985-11-29 1988-08-23 Fujikura Rubber Ltd. Directional control valve
JPS62127583A (ja) * 1985-11-29 1987-06-09 Fujikura Rubber Ltd ダイアフラム型パイロツト操作方向切換弁
JPS62209277A (ja) * 1986-03-10 1987-09-14 Fujikura Rubber Ltd 空圧式流路切換弁
DE3630200A1 (de) 1986-09-04 1988-03-17 Rexroth Mannesmann Gmbh Hydraulisches servoventil
DE19502212C1 (de) 1995-01-25 1996-07-11 Samson Ag Elektropneumatischer Umformer
DE29507380U1 (de) * 1995-05-03 1995-08-24 Bürkert Werke GmbH & Co., 74653 Ingelfingen Fluidisches Steuerelement

Also Published As

Publication number Publication date
DE59911655D1 (de) 2005-03-31
EP1013941A1 (fr) 2000-06-28
DE29822958U1 (de) 1999-04-22
US6286547B1 (en) 2001-09-11

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