EP0439242A1 - Organe à mouvement rectiligne - Google Patents

Organe à mouvement rectiligne Download PDF

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Publication number
EP0439242A1
EP0439242A1 EP19910250013 EP91250013A EP0439242A1 EP 0439242 A1 EP0439242 A1 EP 0439242A1 EP 19910250013 EP19910250013 EP 19910250013 EP 91250013 A EP91250013 A EP 91250013A EP 0439242 A1 EP0439242 A1 EP 0439242A1
Authority
EP
European Patent Office
Prior art keywords
pressure medium
cylinder
valves
connection
linear unit
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
EP19910250013
Other languages
German (de)
English (en)
Other versions
EP0439242B1 (fr
Inventor
Wolf-Dieter Prof. Dr.-Ing. Goedeke
Victor Cohanciuc
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6398636&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0439242(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0439242A1 publication Critical patent/EP0439242A1/fr
Application granted granted Critical
Publication of EP0439242B1 publication Critical patent/EP0439242B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • 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
    • 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
    • F15B15/084—Characterised by the construction of the motor unit the motor being of the rodless piston type, e.g. with cable, belt or chain
    • 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
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps
    • 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
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • 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
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric

Definitions

  • the invention relates to a linear unit with a cylinder, a pressure medium-actuated piston running in a bore of the cylinder, a slide running on the cylinder, a band connecting the piston to the slide and guided via deflection means on heads of the cylinder and with valves screwed into the heads to feed or; Discharge of pressure medium into the bore on both sides of the piston.
  • a linear unit of the type mentioned above is known from DE-OS 37 41 425.
  • valves are used as valve cartridges in corresponding cavities in the cylinder heads and are therefore integrated in the linear axis.
  • valves are screwed from the outside into a corresponding threaded bore of the cylinder heads by means of a threaded connection and thus project radially outward from the cylinder heads.
  • the known linear units have the disadvantage in common that the electrical connection and the pressure medium connection (usually a pneumatic connection) are each rigidly predefined, that is to say the circumferential position of the pressure medium connection and the electrical connection is also predetermined by the final installation position of the inserted or screwed-in valve. In this way, it is only possible with the known linear units, these connections in a certain Direction from the valves.
  • the necessary cables and hoses have to be routed to central units, for example to a central unit of a handling system, of which the linear unit is a part. If this central unit is now in the opposite direction, the cable or the hose must be bent out of the peripheral position determined by the installation position of the valve in the opposite direction and guided to the central unit.
  • the invention is therefore based on the object of developing a linear unit of the type mentioned in such a way that both when equipping the cylinder heads, the linear unit with valves and when laying the connection connections, there is greater freedom, so that overall flexible and compact linear units are provided can, as they are required in handling systems.
  • valves are screwed into the heads by means of swivel screw connections, that the swivel screw connections contain a seat of the valve and that at least one pressure medium connection comes off the swivel screw connection.
  • a swivel screw connection with an integrated pressure medium connection has the advantage that the pressure medium connection can be rotated through 360 ° around the longitudinal axis of the valve, so that the pressure medium line, which is particularly critical in this regard, can be exactly aligned in its outgoing direction in such a way that it can be routed to the central unit in the shortest possible way.
  • the use of the swivel screw connection with an integrated valve seat also has the advantage that the swivel screw connection also serves as an adapter, which can be screwed into the corresponding threaded bore of the cylinder heads with a single defined thread, but on the other hand allows the attachment of a large number of valve types. It is therefore possible to use different valves, depending on the application of the linear unit, without changing the design of the cylinder heads by placing different valves on the integrated seat of the swivel screw connection as required.
  • the pressure medium connection serves to supply the pressure medium.
  • a further pressure medium connection is used to discharge the pressure medium, and this can preferably be provided with a throttle or a silencer.
  • a throttle allows the travel speed of the piston to be adjusted, and the provision of a silencer enables low-noise operation.
  • an embodiment of the invention is particularly preferred in which a switch box for the electronic supply and for pressure medium supply of the valves is arranged on the cylinder, the switch box being connected to a central unit via an electrical connecting cable and a supply hose.
  • This measure has the advantage that the usually two valves of a linear unit with short hose and line pieces can be connected to the switch box, which is conveniently located in the middle of the cylinder between the two cylinder heads.
  • the swivel fittings are aligned inwards so that the hose and cable connections only have to be half as long as the length of the cylinder.
  • control commands for the valves can then be transmitted either directly via the connecting cable or just a start or a stop command for control electronics of the valves integrated in the control box, which processes a predetermined control program after receipt of the start command.
  • the switch box on the cylinder also has the advantage that it has display elements for checking the function of the valves and / or control elements such as proximity switches and the like. Like. Contain, supply and control. Overall, this results in an extremely compact construction of the linear unit with a minimum of cabling and tubing.
  • 10 overall designates a linear unit of a conventional type, which is provided with a cylinder head 11 at each end.
  • valve 15 that can be screwed into the cylinder head 11.
  • the valve 15 is divided into a cartridge part 16 and a swivel screw connection 17.
  • the cartridge part 16 has a housing 20 which is attached on its underside by means of an upper rotary connector 21 to an associated rotary connector 22 of the swivel screw connection 17.
  • the housing 20 ends in an upper valve seat 23, which is part of a flange 24.
  • a lower valve seat 25 is integrated in the swivel screw connection 17.
  • the swivel screw connection 17 is connected to the cylinder head 11 via a lower rotary connection 26.
  • the rotary connections 21, 22, 26 can be fixed by means of screw connections, for example union nuts, but this is not shown in FIG. 1 for the sake of clarity.
  • the rotary connections 21, 22 and 26 open up the possibility of rotating the swivel screw connection 17, as indicated by an arrow 27, about the longitudinal axis of the valve 15, specifically relative to the cartridge part 16 and the cylinder head 11.
  • the cartridge part 16 comprises a closure member 30 in the form of a movable magnet armature which can be deflected in the axial direction by means of a magnet coil 31, specifically against the force of a spring.
  • a first pressure medium connection 32 extends radially laterally from the swivel screw connection 17 and permits the inflow of a pressure medium, for example compressed air, as with indicated by an arrow 33.
  • a second pressure medium connection 34 goes downward from the swivel screw connection 17 through the lower rotary connection 26 and allows pressure medium to be introduced into or released from the cylinder head 11, as indicated by an arrow 35.
  • a third pressure medium connection 36 is finally formed by the already mentioned flange 24 in order to discharge pressure medium, as indicated by an arrow 37.
  • valve 15 'shown in FIG. 2 the design corresponds completely to that of FIG. 1.
  • a further swivel screw connection 40 is connected to the flange 24 at the upper end of the housing 20 in order to enable the exhaust air to be collected and also to be able to connect a hose for removing the exhaust air from any circumferential position. This is possible because, as indicated by an arrow 41, the swivel screw connection 40 can be swiveled relative to the housing 20.
  • Fig. 2 also shows on the underside of the valve 15 'a thread 42 which is used to screw the valve 15' into the cylinder head 11.
  • the thread 42 can be a thread once defined, so that cylinder heads 11 of the linear units 10 can all be equipped with the same counter thread.
  • the thread present in the area of the upper rotary connection 21, 22 for connecting the cartridge part 16 and the swivel screw connection 17 can be designed differently depending on the size of the cartridge part 16.
  • the swivel screw connections 17 thus have the function of an adapter in order to be able to use different cartridge parts 16 on one and the same cylinder head 11 or one and the same counter thread for the thread 42. This makes it possible to equip one and the same linear unit 10 with different valves 15, depending on which cartridge part 16 is required for the respective application, by different ones Valve types, such as pressure servo valves or directional servo valves or other valve types or different valve sizes.
  • Fig. 2 finally shows with 43 a connecting cable that serves to supply the solenoid 31.
  • a cylinder 50 has a cylinder bore 51 in which a piston 52 runs.
  • the piston 52 is connected on both ends to a flexible band, rope or the like, which is guided through both cylinder heads 11a, 11b by means of seals and is guided again to the outside of the cylinder 50 by means of deflection means 54a, 54b, in particular rollers.
  • the band 53 is connected to a carriage 55, which consequently runs counter to the piston 52 on the outside of the cylinder 50.
  • a switch box 60 is also arranged on the outside of the cylinder 50, for example on half the axial length of the cylinder 50, which is shown only schematically in FIG. 3, but not necessarily to scale.
  • the control box 60 is subdivided into a pneumatic level 61 and an electrical level 62.
  • the pneumatic level 61 is connected by means of short hose pieces 63a, 63b to the first pressure medium connections 32a, 32b of the valves 15a, 15b, which in the cylinder heads 11a, 11b described screwed.
  • the swivel screw connections 17a, 17b of the valves 15a, 15b are aligned in this way by twisting that they each point inwards to the switch box 60. In this way, the tube pieces 63a, 63b are as short as possible and are bent only minimally, if at all.
  • the cables 43a, 43b are led from the valves 15a, 15b to the electrical level 62 of the switch box 60.
  • valves 15a, 15b are provided with silencers 56a, 56b, so that a separate removal of the exhaust air is not necessary.
  • the silencers 56a, 56b interact with throttles 57 (not shown in FIG. 4) (see FIG. 4).
  • the supply cable 65 from the central unit 66 to the electrical level 62 of the switch box 60 can be used in different ways. In this way, the supply cable 65 can carry supply voltages and have as many wires as valves 15a, 15b can be controlled. In this way, direct control of the valves 15a, 15b from the central unit 66 is possible. Alternatively, however, a separate electronic control can be provided in the electrical level 62 of the switch box 60, which contains a specific work program for the valves 15a, 15b and then only by means of one Start command must be started and, if necessary, stopped using a stop command. In this case, it would only be necessary to route the start and stop commands via the supply cable 65.
  • the electrical level 62 of the switch box 60 can also be provided with display means, for example light-emitting diodes 67, in order to indicate working states of the linear unit 10, for example the switching state of the valves 15a, 15b.
  • display means for example light-emitting diodes 67
  • proximity switches 70 can be seen, which can be provided on the linear unit 10, in order to recognize end positions of the slide 55, in order to avoid collisions of the linear unit 10 with other units of a handling system, etc.
  • the proximity switches 70 are connected to the Power supply of the valves 15a, 15b connected and transmit their measurement signals via the supply cable 65 to the central unit 66.
  • the pneumatic level 61 of the switch box 60 in FIG. 4 first shows the throttles 57a, 57b already mentioned at the third pressure medium outlet 36a and 36b of the valves 15a, 15b, which allow the travel speed of the piston 52 to be set.
  • the silencers 56a, 56b can also be seen downstream of the throttles 57a, 57b, alternatively indicated by the dash-dot line at 71, the possibility of collecting the exhaust air and removing it altogether via the switch box 60.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
EP19910250013 1990-01-24 1991-01-23 Organe à mouvement rectiligne Revoked EP0439242B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4001938 1990-01-24
DE19904001938 DE4001938C3 (de) 1990-01-24 1990-01-24 Lineareinheit

Publications (2)

Publication Number Publication Date
EP0439242A1 true EP0439242A1 (fr) 1991-07-31
EP0439242B1 EP0439242B1 (fr) 1995-03-08

Family

ID=6398636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910250013 Revoked EP0439242B1 (fr) 1990-01-24 1991-01-23 Organe à mouvement rectiligne

Country Status (4)

Country Link
US (1) US5088382A (fr)
EP (1) EP0439242B1 (fr)
JP (1) JPH04331804A (fr)
DE (2) DE4001938C3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271371A (en) * 1991-10-11 1993-12-21 Caterpillar Inc. Actuator and valve assembly for a hydraulically-actuated electronically-controlled injector
JPH05111884A (ja) * 1991-10-21 1993-05-07 Matsushita Electric Ind Co Ltd 移行装置
DE29610765U1 (de) * 1996-06-19 1996-10-31 Weishaar Angelika Anschlußvorrichtung für Kraftstoffleitungen eines Kraftfahrzeuges
DE19638921A1 (de) * 1996-09-23 1998-03-26 Teves Gmbh Alfred Ventil, insbesondere für eine regelbare hydraulische Fahrzeugbremsanlage
DE19732056A1 (de) * 1997-07-25 1999-01-28 Schuler Pressen Gmbh & Co Vakuumsystem für ein Transfersystem
DE10131150B4 (de) * 2001-06-28 2006-11-02 Bosch Rexroth Pneumatics Gmbh Ventil zum Schalten eines Druckmittelflusses mit einem mehrteiligen Ventilgehäuse
DE102006004101A1 (de) * 2005-11-19 2007-05-24 Continental Teves Ag & Co. Ohg Hydraulikventil
DE102016106092B3 (de) * 2016-04-04 2017-07-27 Festo Ag & Co. Kg Pneumatischer Antrieb

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338418A1 (de) * 1983-10-22 1985-05-15 Festo KG, 7300 Esslingen Magnetventil
DE3741425A1 (de) * 1987-12-08 1989-06-29 Antriebs Steuerungstech Ges Linearantrieb

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US3323546A (en) * 1964-07-01 1967-06-06 United Aircraft Prod Hydraulic bleed valve
US4002103A (en) * 1974-07-01 1977-01-11 The West Company Reciprocating apparatus with a controllable dwell time at each end of the stroke
DE7502826U (fr) * 1975-01-31 1975-08-28 Festo Maschinenfabrik Stoll G
US4171007A (en) * 1976-03-05 1979-10-16 Societe Anonyme: La Telemecanique Electrique Unidirectional flow limiter
CA1137946A (fr) * 1977-10-12 1982-12-21 Edgar W. Maltby Robinet thermostatique a trois voies
FR2455231A1 (fr) * 1979-04-27 1980-11-21 Telemecanique Electrique Dispositif de blocage pour verin
DE3147030C2 (de) * 1981-11-27 1985-08-01 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Magnetventileinheit
DE3235784C2 (de) * 1982-09-28 1984-10-31 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Druckmittelbetätigter doppeltwirkender Arbeitszylinder
US4763560A (en) * 1984-05-25 1988-08-16 Tokyo Precision Instruments Co., Ltd. Method and apparatus of controlling and positioning fluid actuator
DE3436977A1 (de) * 1984-10-09 1986-04-10 Antriebs Steuerungstech Ges Linearantrieb
FR2575526B1 (fr) * 1984-12-28 1987-02-13 Telemecanique Electrique Ensemble de raccords fonctionnels pour verin pneumatique a montage combine pour assurer deux fonctions au moins
US4703819A (en) * 1985-02-27 1987-11-03 Nissan Motor Co., Ltd. Full hydraulic power steering system
GB2184260B (en) * 1985-11-20 1989-11-01 British Gas Plc Valve operating system
US4748897A (en) * 1986-09-05 1988-06-07 Hoge Ned W Subbase for a pneumatic control assembly for a pneumatic cylinder
EP0322503A3 (fr) * 1987-12-29 1991-09-25 Daihatsu Diesel Mfg. Co., Ltd. Appareil à fluide

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338418A1 (de) * 1983-10-22 1985-05-15 Festo KG, 7300 Esslingen Magnetventil
DE3741425A1 (de) * 1987-12-08 1989-06-29 Antriebs Steuerungstech Ges Linearantrieb

Also Published As

Publication number Publication date
DE4001938A1 (de) 1991-07-25
US5088382A (en) 1992-02-18
DE4001938C2 (de) 1994-11-10
EP0439242B1 (fr) 1995-03-08
JPH04331804A (ja) 1992-11-19
DE4001938C3 (de) 2001-07-19
DE59104828D1 (de) 1995-04-13

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