EP0884268A2 - Haltevorrichtung für den Transport von Fördergut - Google Patents
Haltevorrichtung für den Transport von Fördergut Download PDFInfo
- Publication number
- EP0884268A2 EP0884268A2 EP98109827A EP98109827A EP0884268A2 EP 0884268 A2 EP0884268 A2 EP 0884268A2 EP 98109827 A EP98109827 A EP 98109827A EP 98109827 A EP98109827 A EP 98109827A EP 0884268 A2 EP0884268 A2 EP 0884268A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- holding device
- webs
- magnetic field
- permanent
- permanent magnets
- 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.)
- Withdrawn
Links
Images
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
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0252—PM holding devices
-
- 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
- H01F7/20—Electromagnets; Actuators including electromagnets without armatures
- H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material
- H01F2007/208—Electromagnets for lifting, handling or transporting of magnetic pieces or material combined with permanent magnets
Definitions
- the invention relates to a holding device for the Transport of conveyed goods, especially for lifting, Transporting, shingling and stacking ferromagnetic Conveying parts with at least one permanent magnet Generation of a permanent magnetic field, at least further an electric solenoid for generating a Temporary magnetic field and compensation of the permanent magnetic field, and with a magnetically conductive housing for the Permanent magnet and the magnetic coil, the permanent magnet usually towards its smallest dimension is magnetized, and further the permanent magnet in Magnetization direction on the back with a pole on the a magnetic yoke forming housing and on the front with the other pole towards one Working gap is arranged opposite the conveyor parts, and the housing in cross section two or more on one Base plate has upstanding webs.
- the gap width is such that mainly at this point a displacement or compensation of the permanent magnetic field by the temporary magnetic field he follows. That is, all for holding on and Let go of the magnetic field changes to be set are ideally on the area of the working gap limited.
- the cross-sections of the webs are regular executed finger-like.
- a single permanent magnet is provided, which in a magnetically conductive iron yoke is centrally located. Between this permanent magnet and the working gap are a magnetically conductive Compensation plate with a magnetically conductive bridge and a magnetically conductive center pole in this order arranged. This is with regard to possible stray fields disadvantageous. Because the permanent magnet is not immediate in the area of the working gap, but opposite here arranged set back. As a result, there are losses the magnetic field strength inevitable.
- the Austrian patent specification 282 878 is a Load lifting magnet for handling ferromagnetic loads with a plurality of magnetic poles as well as the poles associated excitation windings become known, the Load lifting magnet having an inner group of first poles magnetic primary circuit with at least one first, independently switchable excitation winding.
- one of the primary circuit is magnetic Insulated additional magnetic pole provided, which at least one second excitation winding that can be switched on independently assigned.
- This is supposed to total one Load lifting magnet can be created with which it is possible from a stack of ferromagnetic single sheets with certainty just lift off the top sheet. At the same time should be ensured that when the lifted sheet a sufficiently large adhesive force the single sheet can be exercised. If necessary, should even larger common ferromagnetic loads can be safely transported can be. - Problems with the achievable Switching frequencies are not addressed. - The invention as a whole wants to remedy this create.
- the invention has for its object a holding device the embodiment described above further educate that to adapt to different Conveyed parts with a high switching frequency and simple structure is made possible.
- the invention proposes generic holding device that at least two magnet coils which can be acted upon independently of one another in at least one space between the bars and at least one each Permanent magnets are provided in each web.
- the on the base plate uprights are usually in Installed state of the holding device arranged hanging, so that the permanent magnet (s) pass the ones underneath Conveying parts against the effects of gravity hold or tighten. Compensation of the permanent magnetic field now leads to one due to gravity Falling of the conveyed parts.
- N North Pole
- S South Pole
- the permanent magnets are on the foot side, on the head side or in a position in between in the webs arranged.
- 3 5, 7, 9, ... webs, i.e. (2n + 1) webs, or 2, 3, 4 ..., i.e. (n + 1) bars, with n 1, 2, 3, ... each with permanent magnets be realized, the webs in cross section in pairs opposite each other compared to one central central web are arranged. Otherwise, the Permanent magnets fastened in the longitudinal extension of the webs usually - starting from the central bridge - in each case changing directions of magnetization, so that the compared to the center bar in pairs Bars permanent magnets with the same direction of magnetization have.
- the webs are in vertical extension on the base plate, the Permanent magnets in the vertical extension of the bars are attached that their respective magnetization direction coincides with the direction of the land extension. Hence the magnetization direction and base plate are vertical arranged to each other.
- a particularly simple one in terms of production technology Execution arises in the event that the webs in Are arranged equidistant to the central web and Include equally large spaces between the bars.
- the topology of the holding device is mainly like this chosen that the base plate is circular and the webs concentric with the cylindrical Center bar with the formation of a rotationally symmetrical holding pot arranged with annular channel-shaped interstices are.
- This Holding bar can be easily to, for example Adjust transporting sheet metal plates.
- the above-described measures of the invention not only allows a simple structure overall, but there are also different ones Lift conveyed parts with a high switching frequency, transport and stack. On the one hand, this is due attributed to that for holding the conveyed parts required adhesive force due to the longitudinal extension of the Bars arranged permanent magnets is applied. Scattering losses due to intermediate webs, compensation plates or central poles, as in the state of the Technology required, omitted. Rather, they are Permanent magnets positioned exactly where the adhesive force is initiated. As a result, this can lead to another principally with smaller sized solenoids be worked. Because possible scatter losses of the Permanent magnets are minimized. Accordingly, at same adhesive force less magnetic material for the Permanent magnets are required or carry the same amount of magnetic material as in the prior art a greater adhesive force.
- the exposed position of the permanent magnets also allows a less complicated one in the finger-like webs Compensate so that a further reduced interpretation of the solenoids in terms of what can be achieved with them Magnetic field strength is possible.
- the one with the are generated temporary magnetic fields mainly the field of a bar magnet with - in Comparison to the direction of magnetization of the permanent magnets - same or opposite magnetization direction replicated. If the two solenoids are in the same direction are applied depending on the direction of the emerging Temporary magnetic field a (over) compensation or strengthening the permanent magnetic field. But it is also possible to alternate the two solenoids act upon, depending on the training of the emerging Temporary magnetic field weakening or supporting the Permanent magnetic field takes place.
- the permanent magnets preferably have a sandwich structure with one or more magnetic material plates made of e.g. Neodymium iron boron is embedded between two pole bars or are. But it is also possible to use one or more Magnetic material plates directly between individual web components or to arrange the base plate and the webs.
- the bridges can also be used for alternative transport non-ferromagnetic conveying parts, e.g. Aluminum plates, Suction bores for generating a vacuum and for Have suction of the conveyed parts. Of course in this context, suction cups on the head side of the Bridges conceivable.
- ED duty cycle
- the two solenoids therefore do not leave only one Compensation of the permanent magnetic field too, but it can on the one hand overcompensation, i.e. Repulsion, the conveying parts take place.
- the temporary magnetic field can be designed so that the Permanent magnetic field is strengthened. This is recommended especially in the event that individual conveyor parts in stacks to be held by means of the holding device. This means that stacking and removing is possible. There are, of course, any two between these two extremes Intermediate levels conceivable. This can be done achieve that the two or more solenoids alternately acted upon.
- FIG. 1 there is a holding device for transport of goods to be conveyed, in particular for lifting, transporting, Stacking and shingling ferromagnetic conveying parts 1 shown.
- This shows in its basic structure at least one permanent magnet 2 for generating a Permanent magnetic field, also at least one electrical Magnetic coil 3 for generating a temporary magnetic field and Compensation of the permanent magnetic field and a magnetic conductive housing 4.
- three permanent magnets 2 are provided.
- 3 a permanent magnet 2 is realized.
- 2 is one Embodiment (dashed) shown, after which five Permanent magnets 2 are provided.
- the permanent magnets 2 are each magnetized in the direction of their smallest dimension 1 3 and arranged in the magnetization direction M on the back with a pole on the housing 4 forming a magnetic yoke and on the front with the other pole in the direction of a working gap AS opposite the conveying parts 1.
- the direction of magnetization M like the working gap AS, is indicated by an arrow.
- the direction of the magnetization is (as usual) defined so that the direction of the arrow points from the north pole (N) to the south pole (S).
- the permanent magnets 2 have a length l 1 , a width l 2 and a height (or thickness) l 3 (smallest dimension).
- two electrical magnetic coils 3 are provided. Of course, three or more magnetic coils 3 can also be realized at this point.
- the housing 4 for the permanent magnets 2 and the magnet coils according to FIG. 1, 3 has three on one Base plate 5 standing up - finger-like in cross section - Bars 6 with the permanent magnets 2.
- the permanent magnets 2 can be on the foot, head or in the longitudinal direction of the Webs 6 may be arranged. In addition, they are at least two already mentioned solenoids 3 are provided, which can be acted upon independently of one another. Find further there is at least one web space 7 for receiving the Magnetic coils 3.
- Fig. 1 are two or three webs 6 (see FIG. 4 below and above) with each permanent magnet 2 is provided, which in cross section each in pairs opposite to a central central web 6 'are arranged.
- According to Fig. 2 there are three or five webs 6 (see FIG. 4 below and above), each with permanent magnets 2, which are in cross section each in pairs opposite to the central central web 6 'are arranged.
- the permanent magnets fastened in the longitudinal extent of the webs 6 2 have - starting from the central web 6 '- each changing directions of magnetization M. In this way each have 6 'in comparison to the central web pairs of opposing webs 6 or in Cross section as a pair appearing a web 6 each Permanent magnets 2 with the same direction of magnetization M. This can be seen in particular in FIG. 2.
- the means, as can be seen from the sectional view in Fig. 2 pairs of permanent magnets 2 with the same Magnetization direction M is formed, each - in Comparison to the center bar 6 '- opposite. If you from Central web 6 'goes to the left or right in FIG. 2, the direction of magnetization M changes Permanent magnets 2 in the specified manner.
- the webs 6 are in a vertical extension on the Base plate 5, with the permanent magnets 2 in vertical extension of the webs 6 are attached so that their respective magnetization direction M with the direction the land extension corresponds. Consequently, that too Magnetization direction M of the permanent magnets 2 perpendicular compared to the base plate 5 aligned.
- the holding device by a so-called hanging version and the permanent magnets 2 basically in any position compared to the webs 6 can be arranged. That is, the one shown Holding device is hanging on a frame, a Timing belt or the like attached and pulls by means of Permanent magnet 2 moved through the working gap AS Conveyor parts 1. These are held until with the help of the solenoids 3 compensation of Permanent magnetic field takes place, so that this permanent magnetic field as it were pushed out of the working gap AS will and the conveyor parts 1 fall down.
- the webs 6 are equidistant from the central web 6 ' arranged and close between themselves of equal size Web spaces 7 a.
- the base plate is 5 circular (see FIG. 4 below) and the webs 6 are concentric with the cylindrical central web 6 ' with the formation of a rotationally symmetrical holding pot annular channel-shaped web spaces 7 are arranged.
- the Base plate 5 can also be rectangular be (see FIG. 4 above), the webs 6 in the longitudinal direction mirror-symmetrical compared to the I-shaped in this case Middle web 6 'with the formation of a rectangular holding strip arranged with longitudinal channel-like web spaces 7 are.
- This retaining bar can be in terms of their geometric dimensions to be transported easily Adjust plates, boxes, etc.
- the two or more magnetic coils 3 according to the embodiment are in cross section in the direction of the land extension with their windings 8 in a row or one above the other or one inside the other in the interstices 7 arranged, the respective windings 8 den Center bar 6 'concentric in the manner of circles, ellipses or enclose rounded rectangles. This is 4 above and below in particular, where individual windings 8 are shown schematically.
- the solenoids 3 can in terms of their geometry and Number of turns may be the same or different. However, it is important that they are always independent electrical power are applied to one another. Their arrangement can be chosen so that they are one above the other or are placed one behind the other. A sequential arrangement is conceivable in such a way that both solenoids 3 a common bobbin and core for the windings 8 have. Under stacking is under the Invention to understand an embodiment in which initially a coil is wound on a bobbin with a core and then the second coil on the first Kitchen sink. This way, depending on your needs and different temporary magnetic fields independently of each other generate, depending on the exposure to one, both or more solenoids 3. Of course it is within the scope of the invention three or more Solenoid coils 3 to be used if required appears.
- the two magnetic coils are 3 arranged on the base plate 5 and have a combined height H, which is essentially the length L corresponds to the webs 6.
- H essentially the length L corresponds to the webs 6.
- FIGS. 1 and 2 immediately clear.
- the permanent magnets 2 have a sandwich structure, a magnetic material plate 2a made of e.g. Neodymium iron boron is embedded between two pole strips 2b. The entire sandwich structure and consequently the permanent magnet 2 can be screwed to the housing 5 as required. In this way, the permanent magnets 2 prefabricate.
- Fig. 2 it is indicated that the webs 6 to alternative transport of non-ferromagnetic conveying parts 1, e.g. Aluminum plates, suction holes 9 for generating a Have negative pressure and for sucking the conveyor parts 1 can.
- the invention Holding device for aluminum transport in vacuum combination systems deploy.
- the fact that the permanent magnet 2 generated permanent magnetic field completely by means of the magnetic coils 3 can be compensated reliable eddy currents in transported aluminum avoided. Warming or heating of the aluminum occur just as little as eddy current losses.
- Fig. 1 are the field lines of the permanent magnetic field (bold) and the temporary magnetic field (normal line width) shown.
- the application of the two magnetic coils 3 is chosen so that an overall weakening of the Permanent magnetic field can be observed. In this case becomes a conveyor part 1 originally recorded released.
- 2 shows the scenario, after which a support or strengthening of Permanent magnetic field takes place.
- This offers itself for the Case that not only a conveyor part 1, but for example, a stack of conveyor parts 1 held shall be.
- the inductance is low count so that high switching frequencies are achieved.
- a reliable compensation of the permanent magnetic field reach when both solenoids 3 with electrical Power can be controlled.
- the housing 4 or the base plate 5 and the webs 6 as a whole are an easy-to-manufacture flat steel welding housing.
- the magnetic coils 3 are sealed off from the working gap AS by a coil potting 10.
- the permanent magnets 2 are held in the webs 6 by means of screws 11.
- the total resistance of both magnetic coils 3 (series connection) is approximately 50 ohms.
- the magnet coils 3 each have approximately 1000 turns 8 of a wire with a 0.5 mm 2 cross section. With an applied voltage of 100 volts, a current of approx. 2 amperes is established. This results in a current density of approximately 4 amperes / mm 2 .
- Switching frequencies of more than 120 switchings / min. reach, the changeover time being less than approx. 250 msec. is.
- the width of the housing 4 is 100 mm, with two cubic lengths, namely 250 mm and 500 mm, being generally followed in the case of a rectangular holding strip.
- the specified switching frequency can be achieved with a duty cycle according to DIN of approx. 40% (of 10 min.) And the use of a magnetic coil 3.
- ED compensation time or duty cycle
- the percentages relate to a time of 10 minutes specified in DIN, which must be completed without the magnetic coils 3 blowing through.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Non-Mechanical Conveyors (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
- Fig. 1
- einen Schnitt durch eine erfindungsgemäße Haltevorrichtung mit eingezeichneten Feldlinien für das Szenario Feldabschwächung,
- Fig. 2
- zeigt den Gegenstand nach Fig. 1 unter Berücksichtigung des Szenarios Feldunterstützung,
- Fig. 3
- zeigt eine abgewandelte Ausführungsform nach Fig. 1 und 2 mit einem Permanentmagneten, und
- Fig. 4
- zeigt eine Ansicht in Richtung des Pfeiles A in Fig. 1.
Claims (17)
- Haltevorrichtung für den Transport von Fördergut, insbesondere zum Heben, Transportieren und Stapeln ferromagnetischer Förderteile (1), mit zumindest einem Permanentmagneten (2) zur Erzeugung eines Permanentmagnetfeldes, ferner zumindest einer elektrischen Magnetspule (3) zur Erzeugung eines Temporärmagnetfeldes und Kompensation des Permanentmagnetfeldes, und mit einem magnetisch leitenden Gehäuse (4), wobei der Permanentmagnet (2) in Magnetisierungsrichtung (M) rückseitig mit einem Pol (N, S) an dem einen magnetischen Rückschluß bildenden Gehäuse (4) und frontseitig mit dem anderen Pol (S, N) in Richtung auf einen Arbeitsspalt (AS) gegenüber den Förderteilen (1) angeordnet ist, und wobei das Gehäuse (4) im Querschnitt zwei oder mehr auf einer Grundplatte (5) aufstehende Stege (6) aufweist, dadurch gekennzeichnet, daß zumindest zwei unabhängig voneinander beaufschlagbare Magnetspulen (3) in zumindest einem Stegzwischenraum (7) sowie zumindest je ein Permanentmagnet (2) in jedem Steg (6) vorgesehen sind.
- Haltevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Permanentmagnete (2) jeweils fußseitig, kopfseitig oder in einer Position dazwischen im Steg (6) angeordnet sind.
- Haltevorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß (2n+1) oder (n+1) Stege (6) mit n = 1, 2, 3, ... mit jeweils Permanentmagneten (2) vorgesehen sind, welche im Querschnitt jeweils paarweise gegen-überliegend im Vergleich zu einem zentralen Mittelsteg (6') angeordnet sind.
- Haltevorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die in Längserstreckung der Stege (6) befestigten Permanentmagnete (2) - ausgehend vom Mittelsteg (6') - jeweils wechselnde Magnetisierungsrichtungen (M) aufweisen.
- Haltevorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stege (6) in senkrechter Erstreckung auf der Grundplatte (5) aufstehen, und daß die Permanentmagnete (2) in senkrechter Verlängerung der Stege (6) so befestigt sind, daß deren jeweilige Magnetisierungsrichtung (M) mit der Richtung der Stegerstreckung übereinstimmt.
- Haltevorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Stege (6) im Vergleich zum Mittelsteg (6') äquidistant angeordnet sind und gleichgroße Stegzwischenräume (7) zwischen sich einschließen.
- Haltevorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Grundplatte (5) kreisförmig ausgebildet ist und die Stege (6) konzentrisch gegenüber dem zylindrischen Mittelsteg (6') unter Bildung eines rotationssymmetrischen Haltetopfes mit ringkanalförmigen Stegzwischenräumen (7) angeordnet sind.
- Haltevorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Grundplatte (5) rechteck förmig ausgebildet ist und die Stege (6) in Längsrichtung spiegelsymmetrisch gegenüber dem I-förmigen Mittelsteg unter Bildung einer quaderförmigen Halteleiste mit längskanalartigen Stegzwischenräumen (7) angeordnet sind.
- Haltevorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Stege (6) zum Transport nichtferromagnetischer Förderteile (1), z.B. Aluplatten, Saugbohrungen (9) zur Erzeugung eines Unterdruckes und zum Ansaugen der Förderteile (1) aufweisen.
- Haltevorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die beiden Magnetspulen (3) im Querschnitt in Richtung der Stegerstreckung mit ihren Wicklungen (8) hintereinander oder übereinander im Stegzwischenraum (7) angeordnet sind, wobei die jeweiligen Wicklungen (8) den Mittelsteg (6') konzentrisch in der Art von Kreisen, Ellipsen, abgerundeten Rechtecken od. dgl. umschließen.
- Haltevorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die beiden Magnetspulen (3) auf der Grundplatte (5) aufstehend angeordnet sind und eine kombinierte Bauhöhe (H) aufweisen, welche im wesentlichen der Länge (L) der Stege (6) entspricht.
- Haltevorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die mit den beiden Magnetspulen (3) erzeugten Temporärmagnetfelder dem Feld eines Stabmagneten mit - im Vergleich zur Magnetisierungsrichtung (M) der Permanentmagnete (2) - gleicher oder entgegengesetzter Magnetisierungsrichtung (Q) nachgebildet sind.
- Haltevorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die beiden Magnetspulen (3) gleichsinnig beaufschlagt werden, wobei je nach Richtung des entstehenden Temporärmagnetfeldes eine (Über-)Kompensation oder Verstärkung des Permanentmagnetfeldes erfolgt.
- Haltevorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die beiden Magnetspulen (3) wechselweise beaufschlagt werden, wobei je nach Ausbildung des entstehenden Temporärmagnetfeldes eine Schwächung oder Unterstützung des Permanentmagnetfeldes erfolgt.
- Haltevorrichtung nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Permanentmagnete (2) eine Sandwichstruktur aufweisen, wobei eine oder mehrere Magnetwerkstoffplatten (2a) aus z.B. Neodym-Eisen-Bor zwischen zwei Polleisten (2b) eingebettet ist.
- Haltevorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß durch Zuschaltung einer oder mehrerer Magnetspulen (3) eine Einschaltdauer (ED) von ca. 100% erreicht wird.
- Haltevorrichtung nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß mehrere Förderteile (1) gestapelt oder geschindelt werden können.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19724634A DE19724634C1 (de) | 1997-06-11 | 1997-06-11 | Haltevorrichtung für den Transport von Fördergut |
DE19724634 | 1997-06-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0884268A2 true EP0884268A2 (de) | 1998-12-16 |
EP0884268A3 EP0884268A3 (de) | 1999-09-15 |
Family
ID=7832154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98109827A Withdrawn EP0884268A3 (de) | 1997-06-11 | 1998-05-29 | Haltevorrichtung für den Transport von Fördergut |
Country Status (3)
Country | Link |
---|---|
US (1) | US6288623B1 (de) |
EP (1) | EP0884268A3 (de) |
DE (1) | DE19724634C1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104118793A (zh) * | 2014-07-09 | 2014-10-29 | 镇江市江南矿山机电设备有限公司 | 永磁起重装置 |
DE202016104540U1 (de) | 2016-08-18 | 2016-08-29 | Neuhäuser GmbH | Vorrichtung zum Transport von Werkstücken |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070013468A1 (en) * | 2005-07-18 | 2007-01-18 | Heard Ian G | Means to increase or decrease magnetic strength in permanent magnetic clamping devices |
DE102005052391B4 (de) * | 2005-10-31 | 2016-12-01 | Evertz Magnetbau Gmbh & Co. Kg | Lasthebemagnet |
ES2301313B1 (es) * | 2005-11-25 | 2009-02-16 | Felemamg, S.L. | Electroiman tripolar de polos adaptables a la carga con fijacion de posicion de los polos centrales. |
FR2901524B1 (fr) * | 2006-05-24 | 2008-07-18 | Noel Blandon | Systeme de securite pour un siege d'une installation de remontee mecanique et procede de mise en oeuvre |
IT1398517B1 (it) * | 2009-07-13 | 2013-03-01 | Sgm Gantry Spa | Elettromagnete per la movimentazione di elementi tubolari |
DE202011051822U1 (de) | 2011-10-31 | 2013-02-01 | Neuhäuser GmbH | Transportvorrichtung |
KR101319052B1 (ko) * | 2013-06-07 | 2013-10-17 | 최태광 | 영구자석 에너지 제어를 이용한 자성체 홀딩 장치 |
JP6194424B2 (ja) * | 2015-05-04 | 2017-09-06 | グァン チェ,テ | 磁束制御装置 |
CN207208822U (zh) * | 2017-07-05 | 2018-04-10 | 宁波尼兰德磁业股份有限公司 | 一种用于吸附弹夹的磁板 |
US11749438B2 (en) | 2018-06-19 | 2023-09-05 | The Aerospace Corporation | Thermo-mechanical magnetic coupler |
US11380468B2 (en) * | 2018-06-19 | 2022-07-05 | The Aerospace Corporation | Electro-permanent magnet mooring system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321386A1 (de) * | 1973-04-27 | 1974-11-14 | Krupp Gmbh | Lasthebemagnet |
US4121865A (en) * | 1976-12-09 | 1978-10-24 | Littwin Sr Robert L | Pickup method and apparatus |
DE3423482C1 (de) * | 1984-06-26 | 1985-11-14 | Thyssen Edelstahlwerke AG, 4000 Düsseldorf | Permanentmagnetische Lastgreif - oder Halteeinrichtung |
US4847582A (en) * | 1986-07-28 | 1989-07-11 | Tecnomagnete S.P.A. | Magnetic gripping apparatus |
JPH05256581A (ja) * | 1992-03-12 | 1993-10-05 | Nippon Steel Corp | 焼結鉱等の弱磁性体の磁気浮揚装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1481751B2 (de) * | 1967-03-25 | 1970-02-19 | Fritz, Lothar, 5159 Kerpen | Elektro-Lasthebemagnet zur Handhabung von ferromagnetische!! Gegenständen, insbesondere von Blechen |
US3824516A (en) * | 1973-02-05 | 1974-07-16 | S Benowitz | Electromagnetic material handling system utilizing offset pole spacing |
FR2333612A1 (fr) * | 1975-12-04 | 1977-07-01 | Braillon P | Plateau magnetique a aimants permanents et electro-permanents |
US4378548A (en) * | 1981-03-23 | 1983-03-29 | Magnetics International, Inc. | Lifting magnet incorporating cooling means |
-
1997
- 1997-06-11 DE DE19724634A patent/DE19724634C1/de not_active Expired - Fee Related
-
1998
- 1998-05-29 EP EP98109827A patent/EP0884268A3/de not_active Withdrawn
- 1998-06-11 US US09/095,783 patent/US6288623B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321386A1 (de) * | 1973-04-27 | 1974-11-14 | Krupp Gmbh | Lasthebemagnet |
US4121865A (en) * | 1976-12-09 | 1978-10-24 | Littwin Sr Robert L | Pickup method and apparatus |
DE3423482C1 (de) * | 1984-06-26 | 1985-11-14 | Thyssen Edelstahlwerke AG, 4000 Düsseldorf | Permanentmagnetische Lastgreif - oder Halteeinrichtung |
US4847582A (en) * | 1986-07-28 | 1989-07-11 | Tecnomagnete S.P.A. | Magnetic gripping apparatus |
JPH05256581A (ja) * | 1992-03-12 | 1993-10-05 | Nippon Steel Corp | 焼結鉱等の弱磁性体の磁気浮揚装置 |
Non-Patent Citations (2)
Title |
---|
DATABASE COMPENDEX [Online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US PLACE JAMES R: "CERAMIC HOLDING MAGNETS" Database accession no. EIX76040003218 XP002109098 & MACH DES NOV 13 1975, Bd. 47, Nr. 26, 13. November 1975 (1975-11-13), Seiten 119-121, * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 023 (M-1541), 14. Januar 1994 (1994-01-14) & JP 05 256581 A (NIPPON STEEL CORP), 5. Oktober 1993 (1993-10-05) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104118793A (zh) * | 2014-07-09 | 2014-10-29 | 镇江市江南矿山机电设备有限公司 | 永磁起重装置 |
DE202016104540U1 (de) | 2016-08-18 | 2016-08-29 | Neuhäuser GmbH | Vorrichtung zum Transport von Werkstücken |
Also Published As
Publication number | Publication date |
---|---|
US6288623B1 (en) | 2001-09-11 |
DE19724634C1 (de) | 1998-12-10 |
EP0884268A3 (de) | 1999-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0159005B2 (de) | Elektrisch gesteuerter Elektromotor | |
DE2647503A1 (de) | Magnettisch | |
DE69823728T2 (de) | Betätigungsvorrichtung für Schalter | |
DE19724634C1 (de) | Haltevorrichtung für den Transport von Fördergut | |
DE3423482C1 (de) | Permanentmagnetische Lastgreif - oder Halteeinrichtung | |
DE1926007A1 (de) | Dreiphasen-Drosselspule mit Magnetkern | |
EP2907146B1 (de) | Skalierbarer hochdynamischer elektromagnetischer linearantrieb mit begrenztem hub und geringen querkräften | |
DE102013009588A1 (de) | Transformator und Verfahren zur Anbringung von Wicklungen | |
DE971616C (de) | Mit einer oder mehreren Wicklungen zur Erzeugung eines magnetischen Wechselfeldes versehener, annaehernd geschlossener ferromagnetischer Kreis | |
DE702814C (de) | Regelbare Loeschinduktivitaet fuer den induktiven | |
EP0575935B1 (de) | Magnetschienenbremse | |
DE2654714A1 (de) | Kreuzpunkt-schaltmatrix | |
DE1964660B2 (de) | Verfahren zum Trennen und Orientieren von elektrisch leitenden Körpern | |
DE4006201C1 (de) | ||
DE40414C (de) | Neuerungen an Inductions-Apparaten, um elektrische Ströme zu transformiren | |
DE304970C (de) | ||
DE4341721C2 (de) | Transformator mit rahmenförmigem Blechpaket | |
DE308914C (de) | ||
DE102016107410A1 (de) | Bistabiler Aktuator für ein polarisiertes elektromagnetisches Relais | |
DE1439547C3 (de) | Elektromagnet ohne Anker | |
DE2200498C3 (de) | Elektromagnetische Lasthebevorrichtung | |
DE3225777C2 (de) | Polarisiertes Relais | |
DE3010674C2 (de) | Bandleiter zur Bildung von Polen für einen zur Ablenkung und/oder Fokussierung von Teilchenstrahlen dienenden, im Pulsbetrieb betreibbaren Dipol oder Multipol | |
DE1921544C3 (de) | Lasthebemagnet für plattenförmige Werkstücke aus magnetisierbarem Werkstoff | |
DE969347C (de) | Mit steuerbaren Entladungsgefaessen arbeitende Schalteinrichtung zur Steuerung eines Widerstands-Schweisstransformators mit Schnittbandkern aus Siliziumeisen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT DE ES FR GB IT NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIC1 | Information provided on ipc code assigned before grant |
Free format text: 6B 66C 1/04 A, 6B 66C 1/06 B, 6H 01F 7/02 B, 6H 01F 7/20 B |
|
17P | Request for examination filed |
Effective date: 19990904 |
|
AKX | Designation fees paid |
Free format text: AT DE ES FR GB IT NL PT SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NEUHAEUSER GMBH |
|
17Q | First examination report despatched |
Effective date: 20020527 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20051122 |