EP2852548A1 - Mesure de la longueur de la flèche d'une grue par mesure d'un temps de propagation - Google Patents

Mesure de la longueur de la flèche d'une grue par mesure d'un temps de propagation

Info

Publication number
EP2852548A1
EP2852548A1 EP13722365.7A EP13722365A EP2852548A1 EP 2852548 A1 EP2852548 A1 EP 2852548A1 EP 13722365 A EP13722365 A EP 13722365A EP 2852548 A1 EP2852548 A1 EP 2852548A1
Authority
EP
European Patent Office
Prior art keywords
boom
point
total length
crane
length
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Withdrawn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
EP13722365.7A
Other languages
German (de)
English (en)
Inventor
Robert Tordy
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.)
Hirschmann Automation and Control GmbH
Original Assignee
Hirschmann Automation and Control 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 Hirschmann Automation and Control GmbH filed Critical Hirschmann Automation and Control GmbH
Publication of EP2852548A1 publication Critical patent/EP2852548A1/fr
Withdrawn legal-status Critical Current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
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/46—Position indicators for suspended loads or for crane elements
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/84—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted for distance determination by phase measurement

Definitions

  • the invention relates to a method for the wear-free determination of a total length of a jib of a crane and an apparatus for performing such a method according to the features of the preambles of the independent claims.
  • the invention is therefore based on the object to provide a method for wear-free determination of a total length of a jib of a crane and an apparatus for performing such a method, with which the above-described disadvantages are effectively avoided.
  • the method according to the invention is characterized in that a signal is coupled in at a first point of the cantilever and coupled out at a second point of the cantilever, the total length being determined from the time required for the signal from the first point to the second point , That is, one makes use of the transit time measurement to determine the overall length of the cantilever, in particular a one-piece cantilever or several cantilever elements of a telescopic cantilever. This transit time measurement is largely trouble-free, wear-free and significantly reduces the weight.
  • a telescoping boom is formed of a plurality of cantilever members that are slidable relative to one another, the overall length of a single cantilevered member may vary depending on which parts are attached to the cantilever.
  • a representative example is that a lattice mast tip is attached to a boom, wherein the length of the attached lattice mast element is relevant to the overall length of the boom.
  • the term "boom” is also understood to mean such a boom, which is not only formed in one piece, but which can also be composed of several parts.
  • the method offers the possibility, depending on the assembled parts of the boom (set-up condition)
  • the method is particularly flexible if the entire boom has been assembled from several parts and a runtime measurement is then carried out before the crane is used in order to determine the total length, after which the determined total length is included in the further calculation, in particular a load torque calculation
  • Another advantage of this transit time measurement is the fact that if, during operation of the crane, its setup state, in particular the composition of the boom was changed, the resulting new total length determined and compared with the previously determined total length ka In case of deviations, this means that the new total length has changed, which is incorporated in the further load torque calculation and this new total length can be taken into account.
  • the method for wear-free determination of the overall length of the boom is repeated not only before the crane is put into operation, but also during the operating time. This repetition takes place to increase the reliability of the crane in an advantageous manner each time when the set-up state has changed or alternatively and in addition to it in certain periods (intervals) instead.
  • FIGS. 1 and 2 a cantilever 1 is shown schematically in FIGS. 1 and 2. This boom 1 may be formed in one piece or in several parts.
  • FIG. 1 shows that at the front ends of the jib 1, a signal is coupled in at a first point 2 and decoupled at a second point 3. From the transit time, which requires the signal from the first point 2 to the second point 3, the total length GL of the cantilever 1 can be determined, possibly taking into account further parameters. In this case, the total length L is determined directly from the transit time measurement between points 2 and 3.
  • FIG. 2 An indirect determination of the overall length GL of the cantilever 1 is shown in FIG.
  • at least one signal is switched in and / or out at a distance from an end face of the jib 1 and the distance between the front end and the coupling point is taken into account when determining the total length GL.
  • the distance between the coupling point 2 and the associated front end (when viewing FIG. 2, the right end of the arm 1 ) is designated TLI (partial length 1).
  • the distance between the coupling point 3 and the associated front end is designated TL2 (part length 2).
  • part length 3 is determined by means of the transit time measurement according to the invention between the coupling points 2, 3 (coupling in point 2 and coupling out in point 3 or vice versa). Then, by means of a simple calculation, the total length GL can be achieved by adding the three partial lengths TL1, TL2 and TL3.
  • the partial lengths 1 and 2 are constant, while the partial length 3 may vary due to the composition of the boom 1 of several parts and therefore must be determined by metrology by means of transit time measurement.
  • the partial length 1 and / or the partial length 2 will be zero.
  • Figure 3 shows a schematic diagram for carrying out the method, when the boom is designed as a telescopic boom.
  • the total length GL is determined from the individual lengths of the jib elements 1, 4, wherein the two jibs 1, 4 are movable relative to one another, in particular axially displaceable.
  • the boom 1, the coupling points 2, 3, with their help and by the transit time measurement the total length GL can be determined.
  • Such a structural design has the advantage that the boom 1 and / or the boom 4 need not necessarily be formed in one piece, but can be composed of several components. Because if different lengths of the components are assembled, there is a respective change in the total length of the respective boom 1, 4, which can be determined by means of the transit time measurement.
  • the total length of the telescopic boom can be determined by transit time measurement between these two input and Auskoppelungsticianen 2, 6.
  • a device for the wear-free determination of a total length of a jib of a crane, the device comprising means for coupling a signal to a first point 2, 5 of the jib 1, 4 and means for decoupling at a second point 3, 6 of the boom 1, 4, further comprising means for determining the total length GL from the time required for the signal from the first point 2, 5 to the second point 3, 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Jib Cranes (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

L'invention concerne un procédé de détermination sans usure de la longueur totale (GL) de la flèche (1, 4) d'une grue. Ledit procédé est caractérisé en ce qu'un signal est injecté en un premier point (2, 5) de la flèche (1, 4) et éjecté en un deuxième point (3, 6) de la flèche (1, 4). La longueur totale (GL) est déterminée à partir du temps parcouru par le signal du premier point (2, 5) au deuxième point (3, 6).
EP13722365.7A 2012-05-23 2013-05-06 Mesure de la longueur de la flèche d'une grue par mesure d'un temps de propagation Withdrawn EP2852548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012208635A DE102012208635A1 (de) 2012-05-23 2012-05-23 Messung der Auslegerlänge eines Kranes mittels Laufzeitmessung
PCT/EP2013/059381 WO2013174642A1 (fr) 2012-05-23 2013-05-06 Mesure de la longueur de la flèche d'une grue par mesure d'un temps de propagation

Publications (1)

Publication Number Publication Date
EP2852548A1 true EP2852548A1 (fr) 2015-04-01

Family

ID=48430725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13722365.7A Withdrawn EP2852548A1 (fr) 2012-05-23 2013-05-06 Mesure de la longueur de la flèche d'une grue par mesure d'un temps de propagation

Country Status (8)

Country Link
US (1) US9856119B2 (fr)
EP (1) EP2852548A1 (fr)
JP (1) JP2015520713A (fr)
CN (1) CN104302570A (fr)
DE (1) DE102012208635A1 (fr)
IN (1) IN2014DN09049A (fr)
RU (1) RU2014151635A (fr)
WO (1) WO2013174642A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016180632A1 (fr) * 2015-05-08 2016-11-17 Hirschmann Automation And Control Gmbh Transmission de données/mesure de longueur au moyen d'un objet fixe ou variable, de type tuyau (métallique), de longeur quelconque
WO2022221311A1 (fr) 2021-04-12 2022-10-20 Structural Services, Inc. Systèmes et procédés pour aider un opérateur de grue
AT17868U1 (de) * 2021-12-02 2023-05-15 Palfinger Ag Verfahren zur indirekten Bestimmung einer Ausschublänge zumindest eines Teleskopschubarmes eines Teleskopauslegers

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FR958724A (fr) * 1938-09-26 1950-03-17
US2527753A (en) * 1945-07-09 1950-10-31 Robert A Mcconnell Radio object locating system
US4216868A (en) * 1978-08-04 1980-08-12 Eaton Corporation Optical digital sensor for crane operating aid
JPS55152406A (en) * 1979-05-16 1980-11-27 Tadano Tekkosho:Kk Boom length detector
US4385028A (en) * 1980-03-20 1983-05-24 Lord Electric Company, Inc. System for controlling position and movement of manipulator device from absolute distance data standard
US4516117A (en) * 1982-04-05 1985-05-07 Raymond Couture Range controller for continuously monitoring the position of the boom of heavy machinery
WO1992006349A2 (fr) * 1990-10-08 1992-04-16 Dotronic Mikroprozessortechnik Gmbh Procede et dispositif de saisie et de transmission d'informations avec des conducteurs electriques ou similaires mutuellement mobiles les uns par rapport aux autres
JPH08157188A (ja) * 1994-12-08 1996-06-18 Kobe Steel Ltd クレーンにおけるブームのたわみ検出方法及び作業半径算出方法並びに作業半径算出装置
US5877693A (en) * 1998-05-27 1999-03-02 Grove U.S. L.L.C. Method and apparatus for measuring the length of a multi-section telescopic boom
JP2000007283A (ja) * 1998-06-23 2000-01-11 Komatsu Ltd 移動式クレーンの軸力による異常判定装置
JP2001019364A (ja) * 1999-07-09 2001-01-23 Sumitomo Constr Mach Co Ltd クレーン装置
DE202004008083U1 (de) * 2004-05-19 2005-11-10 Liebherr-Werk Ehingen Gmbh Mobilkran
JP2006056665A (ja) * 2004-08-20 2006-03-02 Tadano Ltd 作業車の過負荷防止装置
DE102005024676A1 (de) * 2004-12-21 2006-07-06 Bosch Rexroth Aktiengesellschaft System zur Lageerfassung und -regelung für Arbeitsarme mobiler Arbeitsmaschinen
JP4678233B2 (ja) * 2005-05-16 2011-04-27 コベルコクレーン株式会社 クレーン及びそのウェイト検出装置
DE102006025002A1 (de) * 2006-05-30 2007-12-06 Pat Gmbh Mobile oder stationäre Arbeitsvorrichtung mit teleskopierbaren Auslegerelementen, deren Position zueinander mittels RFID-Technik erfasst wird
DE102008048307A1 (de) * 2008-07-09 2010-01-21 Moba-Mobile Automation Ag Vorrichtung und Verfahren zur Bestimmung einer Ausfahrlänge von einem ausfahrbaren Maschinenteil
DE102008036994A1 (de) * 2008-08-08 2010-02-11 Ifm Electronic Gmbh Schiebeholm mit integrierter Ausfahrmessung
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DE102009055763A1 (de) * 2009-11-25 2011-05-26 Liebherr-Werk Ehingen Gmbh Vorrichtung und Verfahren zur Längenmessung eines rohrförmigen Elements
US8618949B2 (en) * 2010-02-01 2013-12-31 Trimble Navigation Limited Lifting device efficient load delivery, load monitoring, collision avoidance, and load hazard avoidance
US8905250B2 (en) * 2010-04-16 2014-12-09 Manitowoc Crane Companies, Llc Power and control for wireless anti-two block system
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Also Published As

Publication number Publication date
IN2014DN09049A (fr) 2015-05-22
DE102012208635A1 (de) 2013-11-28
US20150077283A1 (en) 2015-03-19
JP2015520713A (ja) 2015-07-23
RU2014151635A (ru) 2016-07-20
US9856119B2 (en) 2018-01-02
WO2013174642A1 (fr) 2013-11-28
CN104302570A (zh) 2015-01-21

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