EP0187772A1 - Systeme de surveillance et de commande pour grues a fleche. - Google Patents

Systeme de surveillance et de commande pour grues a fleche.

Info

Publication number
EP0187772A1
EP0187772A1 EP85902979A EP85902979A EP0187772A1 EP 0187772 A1 EP0187772 A1 EP 0187772A1 EP 85902979 A EP85902979 A EP 85902979A EP 85902979 A EP85902979 A EP 85902979A EP 0187772 A1 EP0187772 A1 EP 0187772A1
Authority
EP
European Patent Office
Prior art keywords
data
crane
load
control device
control
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
EP85902979A
Other languages
German (de)
English (en)
Other versions
EP0187772B1 (fr
Inventor
Gerhard Kogel
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.)
Pietzsch AG
Original Assignee
Dr-Ing Ludwig Pietzsch & Co GmbH
Pietzsch Ludwig & Co 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 Dr-Ing Ludwig Pietzsch & Co GmbH, Pietzsch Ludwig & Co GmbH filed Critical Dr-Ing Ludwig Pietzsch & Co GmbH
Publication of EP0187772A1 publication Critical patent/EP0187772A1/fr
Application granted granted Critical
Publication of EP0187772B1 publication Critical patent/EP0187772B1/fr
Expired 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
    • 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).
EP85902979A 1984-06-01 1985-05-31 Systeme de surveillance et de commande pour grues a fleche Expired EP0187772B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3420596A DE3420596C2 (de) 1984-06-01 1984-06-01 Überwachungs- und Steuersystem für Auslegerkrane
DE3420596 1984-06-01

Publications (2)

Publication Number Publication Date
EP0187772A1 true EP0187772A1 (fr) 1986-07-23
EP0187772B1 EP0187772B1 (fr) 1988-08-31

Family

ID=6237471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85902979A Expired EP0187772B1 (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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5721208A (en) * 1991-06-29 1998-02-24 Hoechst Aktiengesellschaft Glycopeptides a process for their preparation and their use
US5763397A (en) * 1991-06-29 1998-06-09 Hoechst Aktiengesellschaft Glycopeptides, a process for their preparation and their use
DE102009040258A1 (de) 2009-09-04 2011-03-24 Jaeckel, Manfred, Dipl.-Ing. Verfahren zur Herstellung eines zellularen Sinterformkörpers

Families Citing this family (18)

* 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
GB8818074D0 (en) * 1988-07-29 1988-09-01 Markload Systems Ltd Monitoring system for load carriers
DE3835522A1 (de) * 1988-10-19 1990-05-03 Man Ghh Krantechnik Kransteuerung
US5730305A (en) * 1988-12-27 1998-03-24 Kato Works Co., Ltd. Crane safety apparatus
RU2093452C1 (ru) * 1988-12-27 1997-10-20 Като Воркс Ко., Лтд. Крановое предохранительное устройство
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
DE4223695C2 (de) * 1992-07-21 1994-12-08 Weber Anlagenbau Gmbh & Co Kg Steuerung für das Verschwenken eines in seiner effektiven Länge veränderlichen Auslegers
DE19538264C2 (de) * 1995-10-13 1999-02-18 Pietzsch Automatisierungstech Verfahren und interaktive Bedienkonsole zur Vorbereitung und Einrichtung eines mobilen Arbeitsgerätes
DE29519928U1 (de) * 1995-12-15 1996-04-04 Liebherr-Werk Ehingen Gmbh, 89584 Ehingen Kranfahrzeug mit einer Überlastsicherungseinrichtung
US6744372B1 (en) 1997-02-27 2004-06-01 Jack B. Shaw Crane safety devices and methods
US6140930A (en) * 1997-02-27 2000-10-31 Shaw; Jack B. Crane safety devices and methods
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
DE102015006992B4 (de) * 2014-06-10 2021-04-15 Liebherr-Werk Ehingen Gmbh Verfahren und System zur Berechnung von Daten für den Betrieb eines Krans

Family Cites Families (5)

* 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
SU719085A1 (ru) * 1977-12-15 1981-09-07 Предприятие П/Я В-2156 Плавучий кран
US4178591A (en) * 1978-06-21 1979-12-11 Eaton Corporation Crane operating aid with operator interaction
DE3103728A1 (de) * 1981-02-04 1982-09-02 Fried. Krupp Gmbh, 4300 Essen "einrichtung zur verbesserung des betriebsverhaltens mobiler drehkrane"

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8505614A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5721208A (en) * 1991-06-29 1998-02-24 Hoechst Aktiengesellschaft Glycopeptides a process for their preparation and their use
US5763397A (en) * 1991-06-29 1998-06-09 Hoechst Aktiengesellschaft Glycopeptides, a process for their preparation and their use
DE102009040258A1 (de) 2009-09-04 2011-03-24 Jaeckel, Manfred, Dipl.-Ing. Verfahren zur Herstellung eines zellularen Sinterformkörpers

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
WO1985005614A1 (fr) 1985-12-19
EP0187772B1 (fr) 1988-08-31

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