DE851683C - Lifting magnet - Google Patents

Lifting magnet

Info

Publication number
DE851683C
DE851683C DEST3049A DEST003049A DE851683C DE 851683 C DE851683 C DE 851683C DE ST3049 A DEST3049 A DE ST3049A DE ST003049 A DEST003049 A DE ST003049A DE 851683 C DE851683 C DE 851683C
Authority
DE
Germany
Prior art keywords
lifting magnet
piston
magnet according
pole
axially displaceable
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
Application number
DEST3049A
Other languages
German (de)
Inventor
Erich Kolk
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.)
Steinert Elektromagnetbau GmbH
Original Assignee
Steinert Elektromagnetbau GmbH
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 Steinert Elektromagnetbau GmbH filed Critical Steinert Elektromagnetbau GmbH
Priority to DEST3049A priority Critical patent/DE851683C/en
Application granted granted Critical
Publication of DE851683C publication Critical patent/DE851683C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/20Electromagnets; Actuators including electromagnets without armatures
    • H01F7/206Electromagnets for lifting, handling or transporting of magnetic pieces or material

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Actuator (AREA)

Description

Die Erfindung bez,wecskt, einen: Lasthebemagneten zu schaffern, diessen Z"rägkraft bdsonders groß` ist; der besonders zum Tragen von Kugeln verschiedenen Durchmessers geeignet ist. Da die Tragkraft be- kanntlich mit dem Quadrat dhixäftlireibd@icte tragenden Fläche wächst, muß der magnetische Kreis möglichs.t_geringen magnetischen Widerstand- besi.txn, - d.-b@.--d;er magnetische Kurz.schl:uß muß mögl!ichst" ohne J Luftsqratt erfolgen, weil dessen Widerstand etwa iooomal so groß ist als der,.&s Eisens. Dies wird erfindungsgemäß dadurch er- reicht, daß der innere Pol axial verschieblich aus- geführt wird, derart, diaß er sich der jeweits zu' tragenden Last, beispielsweise einer Eisenkugel, an- paßt. Dabei brauchrt der innere Pol'nieht selbst mit- tragend zu wirken, seine Wirkung@berüht darauf, däß er die aus dem äußeren Polring aust.retenKien Kraftlinien, die der Tragkraft. dienen, mit gering- stem magnetischen Widerstand: zum inneren Pol zurückführt. In Fig. i ist ein solcher Lasthebemagnet itn_'Quer- schnitt dargestellt; Fig. 2 zeigt eine Dra.u_ fsicht da- zu. Der innere Pol i trägt einen venikaf verhieb- baren Kolben 5, der durch einen Stift 8 .oder sonstwie gegen Herausfallen gesichert ist. 2 ist der obere. Deckel mit .den, Tragösen, d.. der.ringförmige äußere Pol. Mit 6 und; 7 sind verschiedene Kugeln, die getragen werden sollen, angedeutet. Der Kolben 5 kann unten.eine Wulst tragen, und- konkav vertieft sein, um eine möglichst große Berührungs fäcli#d'friit der Kugel zu haben. An Stelle eines Kolbens können auch mehrere treten, die auch gegeneinander verschiebbar sind; um sich so einer unebenen Oberfläche des zu tragenden Körpers anzupassen. Es können auch mehrere konzentrisch ineinander gleitende-' Rolirte mit innerem Kolben verwende werden,. 3 ist die die magnetische. Spannung erzeugende Spule. An Shell- der üblichen Tragösen kann dien Magnet auch an dem Kolben 5 aufgehängt sein. The invention bez, wecskt, a: lifting magnet to create whose load-bearing power is particularly great; the especially for carrying different balls Diameter is suitable. Since the load capacity known with the square dhixäftlireibd @ icte If the bearing surface grows, the magnetic one must Circle possible t_low magnetic resistance- besi.txn, - d.-b @ - d; he magnetic short circuit: uss must possible "without air sqratt, because of that Resistance is about iooom times as great as that,. & S Iron. According to the invention, this is achieved by is sufficient for the inner pole to be axially displaceable is performed in such a way he diaß the jeweits to ' load, for example an iron ball, fits. The inner pole itself needs to have a supporting effect, its effect @ is based on that he step out of the outer pole ring Lines of force, those of the load-bearing capacity. serve, with low- stem magnetic resistance: to the inner pole returns. In Fig. I, such a lifting magnet is section shown; Fig. 2 shows a plan view of this to. The inner pole i carries a venikaf carved ble piston 5, which by a pin 8 .or is otherwise secured against falling out. 2 is the upper. Lid with .the, eyelets, d .. the.ring-shaped outer pole. With 6 and; 7 are different balls, which should be worn, indicated. The piston 5 can have a bulge at the bottom, and be concave, in order to have the greatest possible contact fäcli # d'friit of the ball. Instead of one piston, several can also be used, which can also be displaced against one another; in order to adapt to an uneven surface of the body to be carried. It is also possible to use a number of concentrically sliding rollers with an inner piston. 3 is the magnetic one. Voltage generating coil. The magnet can also be suspended from the piston 5 by means of the usual lifting eyes.

Claims (4)

PATENTANSPRÜCHE: i. Lasthebemagnet, dadurch gekennzeichnet, daß der innere und äußere Pol gegeneinander axial verschiebbar sind. PATENT CLAIMS: i. Lifting magnet, characterized in that the inner and outer poles are axially displaceable relative to one another. 2. Lasthebemagnet nach Anspruch i, dadurch gekennzeichnet, daß - der Innenpol aus einem axial verschiebbaren Kolben besteht. ' 2. Lifting magnet according to claim i, characterized in that - the inner pole consists of an axially displaceable one Piston is made. ' 3. Lasthebemagnet nach Anspruch i und 2, ,da&rch gekennzeichnet, daß das Polende des -Inaidnpäle.wtils,tförmig verdickt und, leicht ausgehöhlt ist. 3. Lifting magnet according to claim i and 2, characterized by that the pole end of the -Inaidnpäle.wtils, T-shaped, is thickened and slightly hollowed out. 4. Lasthebemagnet nach Anspruch i bis 3, dadurch gekenmzeichnet"daß an Stelle eines Mittelkolbens mehrere axial gegeneinander verschiebbare Kolben vorgesehen sind.4. Lifting magnet according to claim i to 3, characterized in that "instead of one Central piston several axially mutually displaceable pistons are provided.
DEST3049A 1951-02-10 1951-02-10 Lifting magnet Expired DE851683C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST3049A DE851683C (en) 1951-02-10 1951-02-10 Lifting magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST3049A DE851683C (en) 1951-02-10 1951-02-10 Lifting magnet

Publications (1)

Publication Number Publication Date
DE851683C true DE851683C (en) 1952-10-06

Family

ID=7453042

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST3049A Expired DE851683C (en) 1951-02-10 1951-02-10 Lifting magnet

Country Status (1)

Country Link
DE (1) DE851683C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409223A1 (en) * 1977-11-22 1979-06-15 British Steel Corp Magnetically operated lifting device - has permanent magnets whose field is modified by movable pole piece and seal extending across gap between fixed pole pieces
EP0095030A1 (en) * 1982-04-02 1983-11-30 Emag Maschinenfabrik Gmbh Lifting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409223A1 (en) * 1977-11-22 1979-06-15 British Steel Corp Magnetically operated lifting device - has permanent magnets whose field is modified by movable pole piece and seal extending across gap between fixed pole pieces
EP0095030A1 (en) * 1982-04-02 1983-11-30 Emag Maschinenfabrik Gmbh Lifting device

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