FR2397362A1 - Dispositif de securite pour appareil de levage magnetique - Google Patents

Dispositif de securite pour appareil de levage magnetique

Info

Publication number
FR2397362A1
FR2397362A1 FR7820617A FR7820617A FR2397362A1 FR 2397362 A1 FR2397362 A1 FR 2397362A1 FR 7820617 A FR7820617 A FR 7820617A FR 7820617 A FR7820617 A FR 7820617A FR 2397362 A1 FR2397362 A1 FR 2397362A1
Authority
FR
France
Prior art keywords
load
transducers
magnetic flux
safety device
magnet
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
FR7820617A
Other languages
English (en)
Other versions
FR2397362B1 (fr
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.)
British Steel Corp
Original Assignee
British Steel Corp
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 British Steel Corp filed Critical British Steel Corp
Publication of FR2397362A1 publication Critical patent/FR2397362A1/fr
Application granted granted Critical
Publication of FR2397362B1 publication Critical patent/FR2397362B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01F7/06—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

L'invention concerne un dispositif de sécurité pour appareil de levage magnétique. Ce dispositif comprend des moyens détecteurs 18, 20 sensibles au flux engendré dans le circuit magnétique qui comprend le corps à soulever, un transducteur 22 sensible à la force de levage fournie par l'appareil, ainsi qu'un circuit 24, 26 de conversion de signaux qui compare les signaux provenant du détecteur et du transducteur et fournit une sortie représentative d'une marge de sécurité entre la force de levage et le champ disponible pour ce levage.
FR7820617A 1977-07-11 1978-07-11 Dispositif de securite pour appareil de levage magnetique Granted FR2397362A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2899777 1977-07-11

Publications (2)

Publication Number Publication Date
FR2397362A1 true FR2397362A1 (fr) 1979-02-09
FR2397362B1 FR2397362B1 (fr) 1984-10-26

Family

ID=10284608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820617A Granted FR2397362A1 (fr) 1977-07-11 1978-07-11 Dispositif de securite pour appareil de levage magnetique

Country Status (8)

Country Link
JP (1) JPS5442763A (fr)
AU (1) AU524182B2 (fr)
BE (1) BE868892A (fr)
DE (1) DE2830269A1 (fr)
FR (1) FR2397362A1 (fr)
IT (1) IT1159893B (fr)
NL (1) NL188631C (fr)
SE (1) SE433604B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008142716A2 (fr) * 2007-05-24 2008-11-27 Tecnomagnete S.P.A. Équipement d'ancrage magnétique présentant une unité d'auto-essai

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849959A1 (de) * 1977-11-22 1979-05-23 British Steel Corp Magnetische hubvorrichtung
DE3029720C1 (de) * 1980-08-06 1982-08-05 Geibel & Hotz GmbH, 6313 Homberg Hebemagnet
DE19531513C2 (de) * 1995-08-26 2002-06-20 Betr Forsch Inst Angew Forsch Elektrischer Lasthebemagnet
EP2085349B1 (fr) * 2008-02-04 2014-02-26 TRUMPF Werkzeugmaschinen GmbH + Co. KG Electro-aimant
DE102017110475B4 (de) 2017-05-15 2023-05-17 Prüftechnik Dieter Busch GmbH Vorrichtung und verfahren zur schwingungsmessung an einer maschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290886C (fr) *
US2876415A (en) * 1953-09-08 1959-03-03 Eriez Mfg Company Magnetic indicating device
FR1414151A (fr) * 1964-10-15 1965-10-15 Steinert Elektromagnetbau Fa électro-aimant
US3316514A (en) * 1965-03-29 1967-04-25 Westinghouse Electric Corp Fail safe electro-magnetic lifting device with safety-stop means
GB1272488A (en) * 1969-08-12 1972-04-26 Geoffrey Richard Polgreen Improvements in and relating to magnets for holding and/or lifting loads
US3823395A (en) * 1972-05-30 1974-07-09 Trans Sonics Inc Remote condition indicator for load-lifting device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218312B (de) * 1964-08-04 1966-06-02 Steinert Elektromagnetbau Signaleinrichtung zum Anzeigen von Eisenteilen, die von einem Elektromagneten gefasst werden
DE1295154B (de) * 1965-02-11 1969-05-14 Vickers Ltd Elektromagnetisches Lasthaltegeraet
DE1901611A1 (de) * 1969-01-14 1970-09-17 Hartung Kuhn & Co Gmbh Maschin Gleichstrom-Lastmagnet mit Signalgeber
JPS5249462A (en) * 1975-10-17 1977-04-20 Nishishiba Denki Kk Device for confirming number of articles lifted by lifting electromagnet
JPS5266258A (en) * 1975-12-01 1977-06-01 Nishishiba Denki Kk Confirmation device of adsorbed plate number of lifting electromagnet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290886C (fr) *
US2876415A (en) * 1953-09-08 1959-03-03 Eriez Mfg Company Magnetic indicating device
FR1414151A (fr) * 1964-10-15 1965-10-15 Steinert Elektromagnetbau Fa électro-aimant
US3316514A (en) * 1965-03-29 1967-04-25 Westinghouse Electric Corp Fail safe electro-magnetic lifting device with safety-stop means
GB1272488A (en) * 1969-08-12 1972-04-26 Geoffrey Richard Polgreen Improvements in and relating to magnets for holding and/or lifting loads
US3823395A (en) * 1972-05-30 1974-07-09 Trans Sonics Inc Remote condition indicator for load-lifting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008142716A2 (fr) * 2007-05-24 2008-11-27 Tecnomagnete S.P.A. Équipement d'ancrage magnétique présentant une unité d'auto-essai
WO2008142716A3 (fr) * 2007-05-24 2009-03-05 Tecnomagnete Spa Équipement d'ancrage magnétique présentant une unité d'auto-essai
US8390271B2 (en) 2007-05-24 2013-03-05 Tecnomagnete S.P.A. Magnetic anchorage equipment with a self-test unit

Also Published As

Publication number Publication date
BE868892A (fr) 1978-11-03
IT7868635A0 (it) 1978-07-11
AU3792278A (en) 1980-01-17
JPS5442763A (en) 1979-04-04
NL188631B (nl) 1992-03-16
SE433604B (sv) 1984-06-04
SE7807714L (sv) 1979-01-12
NL7807467A (nl) 1979-01-15
DE2830269C2 (fr) 1988-04-21
DE2830269A1 (de) 1979-01-25
IT1159893B (it) 1987-03-04
FR2397362B1 (fr) 1984-10-26
NL188631C (nl) 1992-08-17
AU524182B2 (en) 1982-09-02

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse