WO1985005614A1 - Systeme de surveillance et de commande pour grues a fleche - Google Patents

Systeme de surveillance et de commande pour grues a fleche Download PDF

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Publication number
WO1985005614A1
WO1985005614A1 PCT/EP1985/000260 EP8500260W WO8505614A1 WO 1985005614 A1 WO1985005614 A1 WO 1985005614A1 EP 8500260 W EP8500260 W EP 8500260W WO 8505614 A1 WO8505614 A1 WO 8505614A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
crane
control device
load
control
Prior art date
Application number
PCT/EP1985/000260
Other languages
German (de)
English (en)
Inventor
Gerhard KÖGEL
Original Assignee
Dr.-Ing. Ludwig Pietzsch Gmbh & Co
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 Dr.-Ing. Ludwig Pietzsch Gmbh & Co filed Critical Dr.-Ing. Ludwig Pietzsch Gmbh & Co
Priority to DE8585902979T priority Critical patent/DE3564676D1/de
Publication of WO1985005614A1 publication Critical patent/WO1985005614A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment
    • B66C23/905—Devices for indicating or limiting lifting moment electrical

Definitions

  • the invention relates to a monitoring and control system for jib cranes with the features of the preamble of claim 1.
  • Conventional jib cranes have a control device that the crane operator can use to operate the individual crane drives.
  • This is e.g. B. the slewing gear control, the hoist control, the telescopic control for telescopic cranes, the luffing cylinder control, the support monitoring when the supports are extended and the like.
  • jib cranes today have load torque limiters, which automatically switch the crane off when a permissible load torque is exceeded, depending on the lifted load and the jib length and jib angle.
  • load torque limiters allow the lifting capacity of the jib crane to be used to a large extent over its entire unloading area, it still happens
  • Uncertainty conditions often also arise due to improper influencing of the control device by the crane driver. For example wise when lifting a load from standstill due to full actuation of the hoist drive to an impermissible jerk. The crane operator can also accidentally cause the jib to rock too quickly for the prevailing load on the crane, select an excessively high rotational speed or the like.
  • a device for controlling a crane boom drive with the features of the preamble of claim 1 is known (DE-OS 25 04 455). There, intervention by the crane operator in the event of a critical load condition of the crane is to be avoided in that the actuator of the crane boom drive is acted upon by the quotient of the instantaneous load torque and the predetermined maximum load torque via a link which connects the setpoint adjuster of the load torque limiter to the actuator of the crane boom drive.
  • the stability depends on a number of other parameters such as the boom length, the boom angle or boom radius, the set-up status of the crane and the like.
  • the invention has for its object to provide a monitoring and control system for jib cranes, which leads to greater safety in crane operation. To solve this problem are at one.
  • Monitoring and control system of the type described in the preamble of claim 1 provided according to the invention the features of the characterizing part of claim 1.
  • the load torque limitation such as radius, load, utilization, set-up state and the like
  • z. B. influence the control functions with the system according to the invention as follows:
  • the maximum speed of rotation can be automatically limited to correspondingly reduced values with the increase in the utilization, boom length, boom angle and lifting height of the crane;
  • the rotary movement can be gently braked when approaching the overload, and the direction of rotation can be released to the safe side.
  • the actuation of the hoist drive can be limited in such a way that the load is pulled back with a jerk after standstill;
  • a slack rope monitoring can be carried out.
  • a pressure gradation with reduced Realize hydraulic pressure when telescoping with light loads.
  • a load can be lifted at a constant radius, taking into account the deflection of the boom. This involves the boom swinging in at the same time as the load is being tightened.
  • the extension status and the hydraulic pressure in the supports can be displayed and monitored, whereby a warning or switch-off of the crane is triggered when a support is relieved.
  • control functions can also be implemented with the system according to the invention.
  • the usual control functions are optimized, which contributes to an increase not only in safety but also in the service life due to the protection of the crane and its components.
  • the control device according to the invention remains functional even if the load torque limiter fails.
  • the control functions can also be limited by the data previously supplied to the processing device, which were previously generated when the load torque was limited.
  • the data transmission device expediently includes a program memory for the coupling software and an interface module on the load torque limiter side and on the control device side.
  • the processing device has a central unit with a computer, a system program memory and a programmable data memory and that the inputs of the central unit are connected to outputs of switch and transmitter modules of the control device and of the load torque limiter.
  • the data transmission device can transmit digitized data, and in addition there can be a device for the data transmission of the data recorded analogously when the load torque is limited, which is particularly desirable for rapid regulation.
  • Functions of the middle and higher performance range such as arithmetic operations, sequence controls, time functions and regulations to be programmable.
  • the block diagram shows a load torque limiter 1 and a control device 2 for a jib crane, here a mobile telescopic crane.
  • the load torque limiter 1 is expanded by a data transmission device 10.
  • This data transmission device includes a program memory 11 for the coupling software and an interface module 12 of a serial interface.
  • This device part 13 corresponds to a device part 23 in the control device 2.
  • the interface module 12 in the load torque limiter 1 corresponds to an interface module 22 in the control device 2.
  • Analog encoders for the length, the angle, the actual force applied by the luffing cylinder of the crane are designated by the reference numerals 30, 30 'and shown in the drawing between the load torque limiter 1 and the control device 2.
  • the corresponding analog data acquisition modules in the device parts 13 and 23 are designated by the reference numerals 14 and 24.
  • the control device 2 contains a processing device in the form of a central unit 25 with a computer (CPU), a system program memory 26 and a programmable data memory 27.
  • a processing device in the form of a central unit 25 with a computer (CPU), a system program memory 26 and a programmable data memory 27.
  • an input module 20 with redundant di ⁇ ital inputs in a conventional design an output module 21 with monitored analog outputs and a computer monitor (watchdog) 25 'are provided.
  • the individual components are connected to one another via a bus coupling 24.
  • Each output monitored by the central unit 25 contains a power amplifier 28 which acts on a crane drive, in the illustrated case on a hydraulic valve 31, and enables a work check to be carried out via a feedback module with an alarm transmitter 29.
  • the load torque limiter 1 and the control device 2 are in constant data traffic, be it via the interface modules 12, 22, via which digital data are transmitted, or via the device parts 13, 23, via which for fast control analog
  • the user program of the crane operator is stored in the system program memory 26, while the programming device is connected to the data memory 27 via a so-called "shadow" memory 27 'is linked to the program connection as an interface.
  • the outside of switches, for. B. Bubend switches in the input module 20 signals are processed together with the signals supplied by the load torque limiter 1 in the central unit 25, which in turn provides the signals required to control the individual digital / analog outputs of the output module 21 for actuating the crane drives 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

Un système de surveillance et de commande pour grues à flèche avec un limiteur de moment de charge (1) et un dispositif de commande (2) influençable par le grutier pour l'actionnement de la grue comporte un appareil de transmission de données (10) pour transmettre des données de grue survenant lors de la limitation du moment de charge et un appareil de traitement dans le dispositif de commande (2), grâce auquel il est possible de produire des grandeurs de guidage pour le dispositif de commande (2) à partir des données transmises par l'appareil de transmission de données (10), ainsi que de signaux du dispositif de commande (2).
PCT/EP1985/000260 1984-06-01 1985-05-31 Systeme de surveillance et de commande pour grues a fleche WO1985005614A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8585902979T DE3564676D1 (en) 1984-06-01 1985-05-31 Monitoring and control system for jib-cranes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3420596.9 1984-06-01
DE3420596A DE3420596C2 (de) 1984-06-01 1984-06-01 Überwachungs- und Steuersystem für Auslegerkrane

Publications (1)

Publication Number Publication Date
WO1985005614A1 true WO1985005614A1 (fr) 1985-12-19

Family

ID=6237471

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1985/000260 WO1985005614A1 (fr) 1984-06-01 1985-05-31 Systeme de surveillance et de commande pour grues a fleche

Country Status (4)

Country Link
EP (1) EP0187772B1 (fr)
JP (1) JPS61502254A (fr)
DE (2) DE3420596C2 (fr)
WO (1) WO1985005614A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353099A2 (fr) * 1988-07-29 1990-01-31 Scimitar Instrumentation Limited Système moniteur de la limite de charge par exemple d'une grue
EP0406419A1 (fr) * 1988-12-27 1991-01-09 Kato Works Co., Ltd. Dispositif de securite pour grues
US5730305A (en) * 1988-12-27 1998-03-24 Kato Works Co., Ltd. Crane safety apparatus
US5731974A (en) * 1995-10-13 1998-03-24 Pietzsch Automatisierungstechnik Gmbh Method and apparatus for the preparation and setup of mobile working equipment
US6140930A (en) * 1997-02-27 2000-10-31 Shaw; Jack B. Crane safety devices and methods
US6744372B1 (en) 1997-02-27 2004-06-01 Jack B. Shaw Crane safety devices and methods

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3613870A1 (de) * 1986-04-24 1987-10-29 Mo N Proizv Ob Str Dorozh Mash Einrichtung fuer den ueberlastungs- und kippschutz von hebezeugen
FI862627A0 (fi) * 1986-06-19 1986-06-19 Fiskars Ab Oy System foer reglerande av en krans hastighet.
IT1204913B (it) * 1987-03-06 1989-03-10 3B6 Sistemi Elettro Idraulici Dispositivo limitatore di sbraccio e/o di momento per piataforme elevatrici
DE3835522A1 (de) * 1988-10-19 1990-05-03 Man Ghh Krantechnik Kransteuerung
EP0470289A1 (fr) * 1990-08-10 1992-02-12 ABUS Kransysteme GmbH & Co. KG. Installation pour exécuter des travaux d'entretien et de montage à une installation de grue
AU8616491A (en) * 1990-10-08 1992-04-28 Barmag Ag Process and device for acquiring and transmitting information with electrical conductors movable relatively to one another or the like
DE4108969A1 (de) * 1991-03-19 1992-09-24 Motion Systems Gmbh Rechnergesteuertes hubzugsystem mit wenigstens zwei hubzuegen
TW213468B (fr) * 1991-06-29 1993-09-21 Hoechst Ag
US5721208A (en) * 1991-06-29 1998-02-24 Hoechst Aktiengesellschaft Glycopeptides a process for their preparation and their use
DE4223695C2 (de) * 1992-07-21 1994-12-08 Weber Anlagenbau Gmbh & Co Kg Steuerung für das Verschwenken eines in seiner effektiven Länge veränderlichen Auslegers
DE29519928U1 (de) * 1995-12-15 1996-04-04 Liebherr-Werk Ehingen Gmbh, 89584 Ehingen Kranfahrzeug mit einer Überlastsicherungseinrichtung
DE10023418A1 (de) * 2000-05-12 2001-11-15 Liebherr Werk Nenzing Verfahren zur Überlastsicherung eines mobilen Kranes
DE102005035460A1 (de) 2005-07-28 2007-02-01 Liebherr-Werk Ehingen Gmbh Verfahren zur Traglastermittlung bei Kranen
DE102009040258A1 (de) 2009-09-04 2011-03-24 Jaeckel, Manfred, Dipl.-Ing. Verfahren zur Herstellung eines zellularen Sinterformkörpers
DE102015006992B4 (de) * 2014-06-10 2021-04-15 Liebherr-Werk Ehingen Gmbh Verfahren und System zur Berechnung von Daten für den Betrieb eines Krans

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854350A1 (de) * 1977-12-15 1979-07-12 Aleksandr Alekseevitsc Azovcev Schwimmkran
DE3103728A1 (de) * 1981-02-04 1982-09-02 Fried. Krupp Gmbh, 4300 Essen "einrichtung zur verbesserung des betriebsverhaltens mobiler drehkrane"

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052602A (en) * 1975-08-14 1977-10-04 Forney Engineering Company Load and radius indicating system
JPS5451166A (en) * 1977-09-30 1979-04-21 Hokushin Electric Works Crane control monitor
US4178591A (en) * 1978-06-21 1979-12-11 Eaton Corporation Crane operating aid with operator interaction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854350A1 (de) * 1977-12-15 1979-07-12 Aleksandr Alekseevitsc Azovcev Schwimmkran
DE3103728A1 (de) * 1981-02-04 1982-09-02 Fried. Krupp Gmbh, 4300 Essen "einrichtung zur verbesserung des betriebsverhaltens mobiler drehkrane"

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0353099A2 (fr) * 1988-07-29 1990-01-31 Scimitar Instrumentation Limited Système moniteur de la limite de charge par exemple d'une grue
EP0353099A3 (fr) * 1988-07-29 1991-04-17 Scimitar Instrumentation Limited Système moniteur de la limite de charge par exemple d'une grue
EP0406419A1 (fr) * 1988-12-27 1991-01-09 Kato Works Co., Ltd. Dispositif de securite pour grues
EP0406419A4 (en) * 1988-12-27 1991-11-27 Kato Works Co., Ltd. Safety device for cranes
EP0614845A2 (fr) * 1988-12-27 1994-09-14 Kato Works Co., Ltd. Dispositif de sécurité pour grue
EP0614845A3 (fr) * 1988-12-27 1994-10-26 Kato Seisakusho Kk Dispositif de sécurité pour grue.
US5730305A (en) * 1988-12-27 1998-03-24 Kato Works Co., Ltd. Crane safety apparatus
US5731974A (en) * 1995-10-13 1998-03-24 Pietzsch Automatisierungstechnik Gmbh Method and apparatus for the preparation and setup of mobile working equipment
US6140930A (en) * 1997-02-27 2000-10-31 Shaw; Jack B. Crane safety devices and methods
US6744372B1 (en) 1997-02-27 2004-06-01 Jack B. Shaw Crane safety devices and methods

Also Published As

Publication number Publication date
JPS61502254A (ja) 1986-10-09
DE3564676D1 (en) 1988-10-06
DE3420596A1 (de) 1985-12-05
DE3420596C2 (de) 1986-10-02
EP0187772B1 (fr) 1988-08-31
EP0187772A1 (fr) 1986-07-23

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