EP0600792A1 - Verfahren und Vorrichtung zum Antrieb und zur Steuerung der Drehung eines Unterflaschenlakens - Google Patents

Verfahren und Vorrichtung zum Antrieb und zur Steuerung der Drehung eines Unterflaschenlakens Download PDF

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Publication number
EP0600792A1
EP0600792A1 EP93402911A EP93402911A EP0600792A1 EP 0600792 A1 EP0600792 A1 EP 0600792A1 EP 93402911 A EP93402911 A EP 93402911A EP 93402911 A EP93402911 A EP 93402911A EP 0600792 A1 EP0600792 A1 EP 0600792A1
Authority
EP
European Patent Office
Prior art keywords
motor
rotation
frequency
control
action
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Withdrawn
Application number
EP93402911A
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English (en)
French (fr)
Inventor
Jean-François Wiart
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.)
WIART JEAN FRANCOIS
Original Assignee
WIART JEAN FRANCOIS
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 WIART JEAN FRANCOIS filed Critical WIART JEAN FRANCOIS
Publication of EP0600792A1 publication Critical patent/EP0600792A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • B66C13/085—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions electrical
    • 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
    • B66C1/10—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 mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks

Definitions

  • the invention relates to a method and a device for driving and controlling the rotation of the hook of a mitten.
  • a relative position sensor controls the relative angular positioning of the hook relative to the muffle body and a gyrometer controls the absolute positioning of the lift axis.
  • a gyrometer controls the absolute positioning of the lift axis.
  • gears each having a still too high inertia to be able to control, in a precise manner, the angular movement of the load; also, is it necessary to provide said device with a coupling and a force limiter.
  • the object of the present invention is to remedy these drawbacks.
  • This invention solves the problem of defining a method and creating a device making it possible to eliminate a reduction stage, as well as a coupling system of force limitation, and to obtain a variation of rotation speed of the load adjustable at will, allowing a progressive rotation and slowing down limiting the inertia effect of the load.
  • the method of motorizing the hook of a lifting block block, by means of an electric motor and a reduction gear, according to the invention, is characterized, mainly, in that it consists in supplying the AC motor, at a nominal frequency of 50 or 60 Hz, and to vary this frequency from 20 to 50 Hz, or from 20 to 60 Hz, depending on the variation in speed of rotation of the load that the it is desired to obtain, and to control the force supplied to the hook by measuring the heating of the electric motor.
  • Control of the variation in load rotation speed is obtained by pre-setting the frequency of the alternating current supplying the motor over several predetermined ranges.
  • the motor operates according to different cycles of preset speed, each cycle comprising: an acceleration range, a rotation range and a deceleration range.
  • the device for implementing the method according to the invention is characterized in that the frequency variation of the alternating current supplying the motor is obtained by means of an electronic frequency converter and an on-off switch.
  • the temperature of the electric motor is controlled by means of a thermal probe, the control of which, incorporated in the control panel, interrupts the supply of said motor in the event of abnormal heating of the latter and restores it as soon as said temperature returns to normal, in that the cycles of speed of rotation of the motor are managed by a programmable automaton, and in that, for each cycle, the rotation of the motor, up to the preset speed, is obtained by action on a push button switch, the rotation being maintained as long as the action, on the said push button, is maintained, the deceleration range being triggered as soon as this action stops, the reverse rotation, according to the same cycle, being obtained by respecting the same ranges by action on an inverter.
  • the figure shows a muffle 10 , comprising two sheaves 12 , each mounted between two reinforcing plates 11 kept apart by spacers 13 , between which are placed a support plate 15 , supporting the motor 14 and the reduction gear 16 , and a crosspiece with stop 17 , supporting the hook 18 by means of a nut 19 ; the assembly being obtained by means of tie rods 111 and nuts 112 .
  • the motor 14 is connected to the terminal block 21 of the control panel 20 by means of a cable 22 with reel 23 , which supplies it with three-phase 220 V current, the said terminal block 21 being itself connected to the mains electrical network.
  • control panel 20 being equipped with a programmable controller 24 , an electronic frequency converter 25 , relays 26 , transformers 27 , 28 .
  • the motor 14 is equipped with a thermal probe 141 .
  • the muffle thus constituted, is of reduced height and of modular width, thanks to the reduction in size of the motor-reducer assembly and the elimination of the force limiter, elastic coupling and motor brake. Disassembly of the motor 14 and reduction gear 16 assembly can be easily obtained by simply releasing the nuts 112 from the tie rods 111 and sliding side of the support plate 15 , which normally rests on strips 151 secured to the internal frame plates 11 ; disassembly into sub-assemblies which can be obtained by completely unscrewing the nuts 112 of the tie rods 111 .
  • the control of the rotation of the muffle is obtained, as explained above, by action on one of the switching push-buttons 31 , 32 or 33 (in the case of a device with three speed cycles), controlled by the programmable controller 24 and the electronic frequency converter 25 .
  • the motorized hook block according to the invention is intended, primarily, to equip overhead traveling cranes, but nothing would prevent its use in other areas of lifting and handling, subject to minor adaptations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
EP93402911A 1992-12-03 1993-12-01 Verfahren und Vorrichtung zum Antrieb und zur Steuerung der Drehung eines Unterflaschenlakens Withdrawn EP0600792A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9214582 1992-12-03
FR9214582A FR2698858B1 (fr) 1992-12-03 1992-12-03 Procédé et dispositif d'entraînement et de contrôle de la rotation du crochet d'une moufle.

Publications (1)

Publication Number Publication Date
EP0600792A1 true EP0600792A1 (de) 1994-06-08

Family

ID=9436197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93402911A Withdrawn EP0600792A1 (de) 1992-12-03 1993-12-01 Verfahren und Vorrichtung zum Antrieb und zur Steuerung der Drehung eines Unterflaschenlakens

Country Status (2)

Country Link
EP (1) EP0600792A1 (de)
FR (1) FR2698858B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103010938A (zh) * 2012-11-13 2013-04-03 大连钛鼎重工有限公司 自动吊钩
CN103224197A (zh) * 2013-04-11 2013-07-31 河南华北起重吊钩有限公司 一种旋转吊钩电磁定位装置
US8616427B2 (en) 2002-10-04 2013-12-31 Covidien Lp Tool assembly for surgical stapling device
CN104444785A (zh) * 2014-11-17 2015-03-25 常熟市永固起重设备安装工程有限公司 一种欧式旋转安全钩
RU173839U1 (ru) * 2017-04-13 2017-09-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный аграрный университет имени В.Я. Горина" Подъёмное устройство
CN107352389A (zh) * 2017-09-19 2017-11-17 安徽骏达起重机械有限公司 起重机的防坠保护吊钩

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107651564B (zh) * 2017-11-03 2019-04-02 南京工业大学 一种起重机吊重姿态调整装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1481824A1 (de) * 1966-01-21 1969-04-17 Scholten Geb Unterflasche fuer Hubwerke
DE2612246A1 (de) * 1976-03-23 1977-10-06 R Stahl 7000 Stuttgart Fa Vorrichtung zur hauptstromsteuerung von hebezeugen
EP0266254A1 (de) * 1986-10-15 1988-05-04 POMPES SALMSON Société Anonyme à directoire dite: Einrichtung zur Überwachung von elektrischen Motoren
US5027049A (en) * 1989-01-31 1991-06-25 Harnischfeger Corporation Method for increasing the speed of an alternating current motor
DE4038981A1 (de) * 1990-12-06 1992-06-11 Man Ghh Logistics Hubwerksantrieb, insbesondere fuer einen turmkran
US5125707A (en) * 1989-05-17 1992-06-30 Sankyu Inc. Rotary load lifting hook device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1481824A1 (de) * 1966-01-21 1969-04-17 Scholten Geb Unterflasche fuer Hubwerke
DE2612246A1 (de) * 1976-03-23 1977-10-06 R Stahl 7000 Stuttgart Fa Vorrichtung zur hauptstromsteuerung von hebezeugen
EP0266254A1 (de) * 1986-10-15 1988-05-04 POMPES SALMSON Société Anonyme à directoire dite: Einrichtung zur Überwachung von elektrischen Motoren
US5027049A (en) * 1989-01-31 1991-06-25 Harnischfeger Corporation Method for increasing the speed of an alternating current motor
US5125707A (en) * 1989-05-17 1992-06-30 Sankyu Inc. Rotary load lifting hook device
DE4038981A1 (de) * 1990-12-06 1992-06-11 Man Ghh Logistics Hubwerksantrieb, insbesondere fuer einen turmkran

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8616427B2 (en) 2002-10-04 2013-12-31 Covidien Lp Tool assembly for surgical stapling device
CN103010938A (zh) * 2012-11-13 2013-04-03 大连钛鼎重工有限公司 自动吊钩
CN103010938B (zh) * 2012-11-13 2014-10-29 大连钛鼎重工有限公司 自动吊钩
CN103224197A (zh) * 2013-04-11 2013-07-31 河南华北起重吊钩有限公司 一种旋转吊钩电磁定位装置
CN104444785A (zh) * 2014-11-17 2015-03-25 常熟市永固起重设备安装工程有限公司 一种欧式旋转安全钩
RU173839U1 (ru) * 2017-04-13 2017-09-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Белгородский государственный аграрный университет имени В.Я. Горина" Подъёмное устройство
CN107352389A (zh) * 2017-09-19 2017-11-17 安徽骏达起重机械有限公司 起重机的防坠保护吊钩

Also Published As

Publication number Publication date
FR2698858A1 (fr) 1994-06-10
FR2698858B1 (fr) 1995-02-03

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