EP0779237B1 - Kranfahrzeug mit einer Überlastsicherungseinrichtung - Google Patents

Kranfahrzeug mit einer Überlastsicherungseinrichtung Download PDF

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Publication number
EP0779237B1
EP0779237B1 EP96118130A EP96118130A EP0779237B1 EP 0779237 B1 EP0779237 B1 EP 0779237B1 EP 96118130 A EP96118130 A EP 96118130A EP 96118130 A EP96118130 A EP 96118130A EP 0779237 B1 EP0779237 B1 EP 0779237B1
Authority
EP
European Patent Office
Prior art keywords
jib
angle
outriggers
overload protection
protection device
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 - Lifetime
Application number
EP96118130A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0779237A3 (de
EP0779237A2 (de
Inventor
Peter Abel
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.)
Liebherr Werk Ehingen GmbH
Original Assignee
Liebherr Werk Ehingen 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 Liebherr Werk Ehingen GmbH filed Critical Liebherr Werk Ehingen GmbH
Publication of EP0779237A2 publication Critical patent/EP0779237A2/de
Publication of EP0779237A3 publication Critical patent/EP0779237A3/de
Application granted granted Critical
Publication of EP0779237B1 publication Critical patent/EP0779237B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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

Definitions

  • the invention relates to a crane vehicle with an overload protection device, with a boom articulated to its superstructure, preferably telescopic boom by one on this and the rocker arm articulated to the superstructure can be rocked with the opposite end regions of the long sides of the Extendable sliding rails arranged under the car their ends are provided with extendable support feet, and with a device measuring the angle of rotation of the boom, the Signals from a processing device of the overload protection device are supplied, in which the overload protection device generates a warning signal and / or stops crane operation, when the crane hits its stability-threatening limits or exceeds.
  • the stability of a crane vehicle with a telescopic boom depends on the size of the load hanging on the telescopic boom among other things from the luffing angle, the extension length of the telescopic boom, from the deflection of the telescopic boom and in particular also from the angle of rotation of the superstructure with telescopic boom to the undercarriage and that through the support feet of the sliding spars defined stand square.
  • the sliding pillars and support feet are defined as a square the safety of the crane is greatest when the boom is heading of the most extended sliding beam.
  • When retracted Sliding bars with extended support feet ensure stability in Longitudinal direction of the undercarriage is greater than in the direction of its transverse axis.
  • the Overload protection must therefore always include the extension status of the sliding struts take into account what is problematic in that the stability is also changes with different extension lengths of the individual sliding beams.
  • a crane is known from EP 0 420 625 A2, in which a safety device various parameters of the crane such as boom position, load and position the supports detected, a work area for the crane depending on the detected Presets parameters and stops the crane if it limits the working area reached.
  • the boundaries of the work area for everyone certain load determined as a function of the angle of rotation of the boom make the best use of the stability of the crane. This takes into account how strong the crane boom rotates when it reaches the working area limits can be braked without the strength of the boom endangered or the load begins to rock.
  • the object of the invention is to a crane vehicle of the type specified create, in which the overload protection device in simple and reliable Way takes into account the different extension lengths of the sliding beams.
  • the of the rotation angle measuring device and the monitoring device of the Sliding bars according to the angle of rotation or the extension lengths of the sliding bars generated signals are from the processing device, the one Microcomputer contains, by comparison with the others determining the stability Processed values, the overload protection device a Crane operation stopping signal generated when the crane jeopardizes its stability Approaches or crosses borders.
  • the 360 ° rotation angle of the boom in several rotation angle ranges is divided and that for each of these rotation angle ranges in this area located booms which result from the extension lengths of the sliding beams Stability values are stored in a table (bit map) from which the Processing unit according to the measured extension lengths of the sliding beams reads out the current stability values of the stand rectangle.
  • each sliding beam only three Support positions in which it is bolted, namely once a retracted Position in which the support leg is in the area of the long side of the undercarriage a middle position and a fully extended position.
  • a retracted Position in which the support leg is in the area of the long side of the undercarriage a middle position and a fully extended position.
  • the computing work of the processing device can thereby be reduced even further, that the 360 ° angle of rotation of the boom to determine the stability values of the standing square is divided into four quadrants. For each of these four quadrants are the stability values for all possible extension lengths the sliding spars stored in such a way that for the entire quadrant are valid for these applicable smallest values.
  • variable angular ranges are defined, in which the boom with the hanging on it Load can be turned safely. It is for each of these Angular ranges from the smallest rocking angle, the is permissible in this angular range. Also by this definition variable angle ranges will simplify the Bill created because not for every angle of the boom the permissible safety values must be taken into account.
  • the sliding spars are expedient for each extended state determined four angular ranges, the limits of which are expedient through from the axis of rotation of the boom to the the support feet load-bearing ends of the sliding beams are drawn lines become.
  • the reduction in the angular ranges has the advantage that the Crane operators need not fear in larger angular ranges, Approach an angular limit at which the overload safety device responds.
  • the choice of larger angular ranges leads to that the higher loads, which are permissible in certain areas, for example by swiveling the boom to smaller ones Rocker angle, can not be used.
  • FIG. 1 schematically shows an undercarriage 1 of a crane vehicle can be seen from the sliding spars 2 extended to different extents are at their ends support feet 3, by Hydraulic cylinder at right angles to the sliding bars in a vertical direction Are extendable towards the floor. To extend the Support spindles can also be provided.
  • the Sliding beams 2 are located in the end areas of the two Long sides of the undercarriage 1 and are perpendicular to it Extendable median longitudinal plane.
  • the sliding beams can be Extend in three stages, each in their Guides must be bolted. These levels correspond to one retracted position in which the support lengths of the sliding beams are smallest, a middle position and an extended position Position in which the support length is greatest.
  • the two are Sliding bars 2 of the left side in their middle position, the upper sliding beam on the right in its most extended position Position and the sliding beam at the bottom right in its retracted position Position. From this extension pattern of the sliding struts and the resulting support lengths result in a Stand square that varies over the angle of rotation of the boom is able to absorb large luffing forces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
EP96118130A 1995-12-15 1996-11-12 Kranfahrzeug mit einer Überlastsicherungseinrichtung Expired - Lifetime EP0779237B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29519928U 1995-12-15
DE29519928U DE29519928U1 (de) 1995-12-15 1995-12-15 Kranfahrzeug mit einer Überlastsicherungseinrichtung

Publications (3)

Publication Number Publication Date
EP0779237A2 EP0779237A2 (de) 1997-06-18
EP0779237A3 EP0779237A3 (de) 1997-07-09
EP0779237B1 true EP0779237B1 (de) 2001-10-10

Family

ID=8016782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118130A Expired - Lifetime EP0779237B1 (de) 1995-12-15 1996-11-12 Kranfahrzeug mit einer Überlastsicherungseinrichtung

Country Status (5)

Country Link
US (1) US5887735A (ko)
EP (1) EP0779237B1 (ko)
JP (1) JPH09175785A (ko)
KR (1) KR100427506B1 (ko)
DE (2) DE29519928U1 (ko)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006017724U1 (de) * 2006-11-21 2008-04-03 Liebherr-Werk Ehingen Gmbh Mobilkran
CN103043581A (zh) * 2012-12-21 2013-04-17 三一重工股份有限公司 一种转台限位装置、方法及工程机械
DE102011119654A1 (de) 2011-11-29 2013-05-29 Liebherr-Werk Ehingen Gmbh Mobile Arbeitsmaschine, insbesondere Fahrzeugkran
CN109592567A (zh) * 2018-12-10 2019-04-09 中联重科股份有限公司 用于工程机械的控制系统、方法及工程机械

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6269635B1 (en) 1999-01-20 2001-08-07 Manitowoc Crane Group, Inc. Control and hydraulic system for a liftcrane
JP3683571B2 (ja) * 2003-04-10 2005-08-17 古河機械金属株式会社 クレーンの転倒防止装置
DE202005013310U1 (de) * 2005-08-23 2007-01-04 Liebherr-Hydraulikbagger Gmbh Überlastwarneinrichtung für Bagger
US7525276B2 (en) * 2005-09-13 2009-04-28 Romer, Inc. Vehicle having an articulator
DE102006031257A1 (de) * 2006-07-06 2008-01-10 Putzmeister Ag Autobetonpumpe mit Knickmast
DE102008055625A1 (de) 2008-11-03 2010-05-06 Putzmeister Concrete Pumps Gmbh Fahrbare Arbeitsmaschine mit Stützauslegern
CN101746675B (zh) * 2009-12-31 2012-05-02 三一汽车制造有限公司 起重机超起装置及其控制系统和控制方法
DE102010056584B4 (de) 2010-12-30 2018-03-29 Asm Automation Sensorik Messtechnik Gmbh Mobile Arbeitsmaschine
AT511234B1 (de) * 2011-04-08 2013-05-15 Palfinger Ag Standsicherheitsüberwachung eines auf einem fahrzeug montierten ladekrans
DE102012011871B4 (de) * 2012-06-13 2020-09-03 Liebherr-Werk Ehingen Gmbh Verfahren zur Überwachung der Kransicherheit sowie Kran
AT13517U1 (de) * 2012-10-19 2014-02-15 Palfinger Ag Sicherheitseinrichtung für einen Kran
DE102013201860A1 (de) * 2013-02-05 2014-08-07 Terex Cranes Germany Gmbh Verfahren zur Beeinflussung einer auf einen Seiltrieb wirkenden Seilwindenkraft und Vorrichtung zur Durchführung eines derartigen Verfahrens
FR3002799B1 (fr) * 2013-03-01 2015-07-31 Haulotte Group Cellule de mesure d'effort pour nacelle elevatrice et nacelle elevatrice comprenant une telle cellule
DE102014008117A1 (de) * 2014-06-03 2015-12-03 Liebherr-Werk Ehingen Gmbh Mobile Arbeitsmaschine mit Abstützung und Verlängerung zur Verbreiterung der Stützbasis
IT201700037143A1 (it) 2017-04-05 2018-10-05 Jacques Tranchero Gru con sistema antiribaltamento settoriale
EP3450384A3 (en) 2017-08-28 2019-05-08 Manitowoc Crane Companies, LLC Crane control system configured to generate a working range diagram, working range diagram for a crane, and method for generating a working range diagram for a crane.
CN108892038B (zh) * 2018-06-07 2021-02-05 河南华东工控技术有限公司 一种起重机械远程无线安全监控管理系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2230840C2 (de) * 1972-06-23 1982-05-06 Carl Metz Gmbh, 7500 Karlsruhe Trägerfahrzeug mit einem hinsichtlich seiner Länge und seiner Stellung im Raum veränderbaren Tragbalken
FR2501390A1 (fr) * 1981-03-05 1982-09-10 Camiva Dispositif de commande a microprocesseur pour echelle orientable deployable ou bras elevateur analogue
DE3420596C2 (de) * 1984-06-01 1986-10-02 Dr.-Ing. Ludwig Pietzsch Gmbh & Co, 7505 Ettlingen Überwachungs- und Steuersystem für Auslegerkrane
DE3605462A1 (de) * 1986-02-24 1987-08-27 Mo N Proizv Ob Str Dorozh Mash Verfahren zur sicherung eines gefahrlosen betriebes von selbstfahrenden auslegerkranen und system zur durchfuehrung desselben
US4833615A (en) * 1986-10-15 1989-05-23 A.G.A. Credit System for the protection of an aerial device having a pivotable boom
JPH085623B2 (ja) * 1989-09-27 1996-01-24 株式会社神戸製鋼所 クレーンの安全装置
JP2564060B2 (ja) * 1991-10-24 1996-12-18 株式会社神戸製鋼所 建設機械の安全装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006017724U1 (de) * 2006-11-21 2008-04-03 Liebherr-Werk Ehingen Gmbh Mobilkran
EP1925585A1 (de) 2006-11-21 2008-05-28 Liebherr-Werk Ehingen GmbH Mobilkran
DE102011119654A1 (de) 2011-11-29 2013-05-29 Liebherr-Werk Ehingen Gmbh Mobile Arbeitsmaschine, insbesondere Fahrzeugkran
DE102011119654B4 (de) * 2011-11-29 2015-11-12 Liebherr-Werk Ehingen Gmbh Mobile Arbeitsmaschine, insbesondere Fahrzeugkran
CN103043581A (zh) * 2012-12-21 2013-04-17 三一重工股份有限公司 一种转台限位装置、方法及工程机械
CN103043581B (zh) * 2012-12-21 2016-04-06 三一重工股份有限公司 一种转台限位装置、方法及工程机械
CN109592567A (zh) * 2018-12-10 2019-04-09 中联重科股份有限公司 用于工程机械的控制系统、方法及工程机械

Also Published As

Publication number Publication date
EP0779237A3 (de) 1997-07-09
KR970042227A (ko) 1997-07-24
EP0779237A2 (de) 1997-06-18
JPH09175785A (ja) 1997-07-08
DE59607876D1 (de) 2001-11-15
DE29519928U1 (de) 1996-04-04
US5887735A (en) 1999-03-30
KR100427506B1 (ko) 2004-07-14

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