EP0585838A1 - Actionneur analogique, notamment pour soupape magnétique analogique - Google Patents

Actionneur analogique, notamment pour soupape magnétique analogique Download PDF

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Publication number
EP0585838A1
EP0585838A1 EP93113745A EP93113745A EP0585838A1 EP 0585838 A1 EP0585838 A1 EP 0585838A1 EP 93113745 A EP93113745 A EP 93113745A EP 93113745 A EP93113745 A EP 93113745A EP 0585838 A1 EP0585838 A1 EP 0585838A1
Authority
EP
European Patent Office
Prior art keywords
tappet
magnet according
bolt
housing
adjusting
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.)
Ceased
Application number
EP93113745A
Other languages
German (de)
English (en)
Inventor
Joachim Dr. Oswald
Oskar Robert Wipf
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.)
Knorr Bremse Rail Systems Schweiz AG
Original Assignee
Oerlikon Knorr Eisenbahntechnik 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
Application filed by Oerlikon Knorr Eisenbahntechnik AG filed Critical Oerlikon Knorr Eisenbahntechnik AG
Publication of EP0585838A1 publication Critical patent/EP0585838A1/fr
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding

Definitions

  • the invention relates to an analog actuating magnet for delivering a force and / or stroke distance directly or inversely proportional to its excitation strength to an actuator of a device to be actuated, in particular for analog solenoid valves with as a valve part to be flanged to the housing of the analog actuating magnet a valve tappet designed as an actuator, with an anchor-carrying, axially adjustable tappet, with at least one tappet located on the tappet facing away from the radial shoulder, which determines an end position of the tappet by contact with a corresponding, fixed counter shoulder.
  • this configuration can be used to adjust the factors essential for the working behavior of the analog actuating magnet in order to eliminate the influences of manufacturing tolerances.
  • the subclaims show possible, advantageous design options for such an analog actuating magnet.
  • the actuator can be accommodated in areas of the analog actuating magnet that are free from other components, so that no separate installation space, in particular no axial extension of the analog actuating magnet is required.
  • the inclined axial direction of the set screw also reduces the adjustment movement from the set screw to the washer, which means that a very high adjustment accuracy can be achieved for the ram end position.
  • an analog solenoid valve with an analog actuating magnet designed according to the invention is shown largely in axial section as an exemplary embodiment of the invention.
  • the analog solenoid valve is composed of an analog actuating magnet 1 and a valve part 2, for which purpose the housing 3 of the analog actuating magnet 1 is flanged together on the end face with the housing 4 of the valve part or is connected to one another in some other suitable manner.
  • the relative axial position of the two housings 3 and 4 can be precisely adjusted by inserting one or more adjusting disks 30 of suitable strength.
  • a valve tappet 5 is axially displaceably mounted for a valve device, not shown in the following.
  • the valve device (not shown) can have a double valve for creating a useful pressure loading the valve tappet 5 in the direction of the analog actuating magnet 1 via a piston member.
  • a tappet 7 is mounted axially displaceably with low friction by means of ball bushings 6, the tappet 7 and the valve tappet 5 run coaxially with one another. Close to the area of the parting plane between the housings 3 and 4, the tappet 7 faces with its end face 8 the end face of the valve tappet 5; in this end face of the valve tappet 5, a ball 9 is held centrally by means of an essentially conical recess, which is on the end face 8 lies on.
  • suitable adjusting disks 30 By means of suitable adjusting disks 30, the axial position of the valve tappet 5 can also be adjusted relative to the tappet 7 with the housings 3 and 4.
  • the stroke of the valve tappet 5 in the direction of distance from the tappet 7 can be limited in an adjustable manner, preferably not shown.
  • the plunger 7 carries an armature 10, which is surrounded by an excitation coil 11 arranged in the housing 3.
  • the armature 10 is located in a space 12 of the housing 3, which is longer than that by at least the desired stroke 13 of the plunger 7 when the excitation coil 11 is fully excited, increased by the thickness of an annular disk 14 located in the space 12 and surrounding the plunger 7 Armature 10.
  • the ring disk 14, which is made of a non-magnetizable material, in particular brass, is located on the side of the armature 10 facing away from the end face 8. When the excitation coil 11 is excited, the armature 10 experiences an adjusting force directed in the direction of the ring disk 14.
  • the annular disc 14 is movable relative to the plunger 7, it belongs to an actuator 20, by means of which the axial end position of the plunger 7 can be adjusted when the excitation coil 11 is fully excited.
  • the actuator 20 also includes a bolt 21, which is axially displaceable in the housing 3 with the axis 22 of the plunger 7 parallel to the axis 23 next to the plunger 7, such that it has one end face on the ring surface facing away from the armature 10 the washer 14 abuts.
  • the bolt 21 rests on the end face 24 of an adjusting screw 25 which is screwed to the housing 3 so as to be adjustable with an axial direction 26 inclined at an obtuse angle a to the axis 23 of the bolt 21; the angle a is drawn in to clarify the illustration between the axial direction 26 and a reference line 23a parallel to the axis 23.
  • the respective position of the adjusting screw 25 can be secured by a lock nut 27.
  • the thread stroke of the adjusting screw 25 and the obtuse angle ⁇ are dimensioned such that an easy-to-use rotation unit of the adjusting screw 25 corresponds to an axial adjustment of the bolt 21 by an easily manageable stroke distance:
  • a rotation unit of 90 ° can correspond to a stroke distance of 0.1 mm.
  • the end face of the armature 10 facing away from the end face 8 and facing the annular disk 14 forms a face located on the tappet 7 Radial shoulder 28, which faces the counter shoulder 29 formed by the annular surface of the annular disk 14 facing the armature 10.
  • the contact of the radial shoulder 28 on the counter shoulder 29 with the washer 14 axially supported at the same time by the bolt 21 and the adjusting screw 25 limits the direction of movement of the plunger 7 when the excitation coil 11 is excited, that is to say it determines the corresponding end position of the plunger 7.
  • the axial position of the washer 14 and thus the counter shoulder 29 can be adjusted relative to the housing 3 by reducing the screwing path via the bolt 21; the maximum valve lift in the valve part 2 can thus be adjusted via the end face 8 while compensating for manufacturing tolerances.
  • valve part 2 is designed as described above, there is an inverse mode of operation with regard to the useful pressure, i.e. the useful pressure drops with increasing excitation of the excitation coil.
  • the obtuse angle a is expediently of the order of magnitude of approximately 135 °
  • the end face 24 of the adjusting screw 25 is expediently conical in such a way that between two mutually opposite surface lines there is a tip angle for the cone of at least approximately the obtuse angle a, reduced by 90 ° and then doubled results in: In this way a line contact between the end face 24 and the bolt 21 can be achieved.
  • the adjusting screw 25 is expediently arranged in the housing 3 in such a way that the axes 22 and 23 of the tappet 7 or of the bolt 21 and the axial direction 26 lie in one plane.
  • the actuator 20 requires only otherwise unused Installation space in the analog actuating magnet 1, so there is no enlargement for this, in particular no axial extension by the actuator 20.
  • the adjustment options according to 3 and 4 are particularly important.
  • the operating point and downward thrust can be set without having to dismantle the magnet and / or the device to be controlled, in particular the valve part 2, which drastically reduces the corresponding effort. If cut-open, U-type adjustment disks are used, adjustment after 3 is particularly easy.
  • the aforementioned adjustable stroke limitation for the valve lifter 5 can be replaced.
  • the spring 17 together with the adjusting screw 19 can also be omitted or replaced by a corresponding functional arrangement in the device to be actuated that is to be coupled with the plunger 7.
  • the analog control magnet (1) is equipped with an actuator (20) for adjusting at least one of the end positions of its plunger (7).
  • the actuating element (20) comprises an annular disc (14) which is arranged in the space (12) receiving the armature (10) and surrounds the plunger (7) in a relatively movable manner and which is axially supported by means of a bolt (21), the bolt (21) in turn is supported against the end face (24) by an adjusting screw (25) screwed at an obtuse angle to the housing (3).
  • the analog control magnet (1) can be used in particular in connection with a valve part (2) which can be adjusted in its relative axial position by interposing at least one adjusting disk 30 to form an analog solenoid valve.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
EP93113745A 1992-08-28 1993-08-27 Actionneur analogique, notamment pour soupape magnétique analogique Ceased EP0585838A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4228638 1992-08-28
DE4228638 1992-08-28
DE19924235508 DE4235508A1 (de) 1992-08-28 1992-10-21 Analog-Stellmagnet, insbesondere für Analog-Magnetventile
DE4235508 1992-10-21

Publications (1)

Publication Number Publication Date
EP0585838A1 true EP0585838A1 (fr) 1994-03-09

Family

ID=25917980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93113745A Ceased EP0585838A1 (fr) 1992-08-28 1993-08-27 Actionneur analogique, notamment pour soupape magnétique analogique

Country Status (2)

Country Link
EP (1) EP0585838A1 (fr)
DE (1) DE4235508A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9620274B2 (en) 2015-02-17 2017-04-11 Enfield Technologies, Llc Proportional linear solenoid apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422973B4 (de) * 1994-06-30 2004-05-27 Robert Bosch Gmbh Vorrichtung und Verfahren zum Zusammenfügen eines Mikroventils
DE19908102C1 (de) * 1999-02-25 2000-05-04 Daimler Chrysler Ag Ventil mit variablem Ventilquerschnitt
DE19961608A1 (de) * 1999-12-21 2001-07-26 Daimler Chrysler Ag Aktor zur elektromagnetischen Ventilsteuerung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463332A (en) * 1983-02-23 1984-07-31 South Bend Controls, Inc. Adjustable, rectilinear motion proportional solenoid
DE3317226A1 (de) * 1983-05-11 1984-11-15 bso Steuerungstechnik GmbH, 6603 Sulzbach Betaetigungsmagnet
EP0384206A1 (fr) * 1989-02-18 1990-08-29 J.M. Voith GmbH Electro-aimant avec plongeur
EP0423045A1 (fr) * 1989-10-12 1991-04-17 Eaton S.A.M. Electrovanne, notamment commandée par un signal électrique cyclique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2337512A (en) * 1940-12-13 1943-12-21 Tomkins Johnson Company Two-way speed control valve
DE1818907U (de) * 1959-07-25 1960-09-29 Elemag Anstalt Elektromagnetisch betaetigbares ventil.
BE666262A (fr) * 1964-07-11
US4394962A (en) * 1981-02-23 1983-07-26 Cummins Engine Company, Inc. Solenoid operated fuel injector and control valve
DE9208939U1 (de) * 1992-07-03 1992-09-17 Elektroteile GmbH, 78333 Stockach Schaltmagnet mit induktivem Stellungsgeber

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463332A (en) * 1983-02-23 1984-07-31 South Bend Controls, Inc. Adjustable, rectilinear motion proportional solenoid
DE3317226A1 (de) * 1983-05-11 1984-11-15 bso Steuerungstechnik GmbH, 6603 Sulzbach Betaetigungsmagnet
EP0384206A1 (fr) * 1989-02-18 1990-08-29 J.M. Voith GmbH Electro-aimant avec plongeur
EP0423045A1 (fr) * 1989-10-12 1991-04-17 Eaton S.A.M. Electrovanne, notamment commandée par un signal électrique cyclique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9620274B2 (en) 2015-02-17 2017-04-11 Enfield Technologies, Llc Proportional linear solenoid apparatus
US9704636B2 (en) 2015-02-17 2017-07-11 Enfield Technologies, Llc Solenoid apparatus

Also Published As

Publication number Publication date
DE4235508A1 (de) 1994-03-03

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