EP1741663B1 - Section de poutre supérieure pour grues télescopiques - Google Patents

Section de poutre supérieure pour grues télescopiques Download PDF

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Publication number
EP1741663B1
EP1741663B1 EP05014792A EP05014792A EP1741663B1 EP 1741663 B1 EP1741663 B1 EP 1741663B1 EP 05014792 A EP05014792 A EP 05014792A EP 05014792 A EP05014792 A EP 05014792A EP 1741663 B1 EP1741663 B1 EP 1741663B1
Authority
EP
European Patent Office
Prior art keywords
cross
sectional
sectional element
flat
elements
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
EP05014792A
Other languages
German (de)
English (en)
Other versions
EP1741663A1 (fr
Inventor
Frank Dipl.-Ing. Richter
Enno Dipl.-Ing. Siebels
Rocco Dipl.-Ing. Tepper
Franz Dipl.-Ing. Paschke
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.)
Grove US LLC
Original Assignee
Grove US LLC
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 Grove US LLC filed Critical Grove US LLC
Priority to EP05014792A priority Critical patent/EP1741663B1/fr
Priority to ES05014792T priority patent/ES2357214T3/es
Priority to DE502005010620T priority patent/DE502005010620D1/de
Priority to CA2549448A priority patent/CA2549448C/fr
Priority to CNA2006100904707A priority patent/CN1891612A/zh
Priority to JP2006184355A priority patent/JP2007015860A/ja
Priority to US11/481,052 priority patent/US7413093B2/en
Priority to KR1020060063951A priority patent/KR20070006613A/ko
Publication of EP1741663A1 publication Critical patent/EP1741663A1/fr
Application granted granted Critical
Publication of EP1741663B1 publication Critical patent/EP1741663B1/fr
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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • 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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • 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

Definitions

  • the invention relates to a Obergurtquerexcellent for Kranteleskopteil.
  • it relates to a Obergurtquerexcellent for telescopic parts of a vehicle crane.
  • Telescopic crane jibs are exposed during operation to a load which results in a tension in the upper belt, that is to say in the upper half of the telescopic part cross-section.
  • horizontal bending and torsion can occur due to lateral forces (wind) and off-center loads.
  • the cross-section should be able to absorb the resulting stresses as well as possible due to its shape, and both are the case with the embodiment according to the invention.
  • a number of bends are created on the one hand, which act as idealized Beulsteifen. This is of great advantage for rocker tip operation but also in prestressed and / or guyed boom systems, and the need to provide separate buckling stiffeners is minimized or eliminated altogether.
  • the provision of the number and shape of cross-sectional elements according to the invention has the effect that bends are present in the lateral cross-sectional parts, so that the lateral single tuberosities are more limited and the total field of heel stiffened, unlike, for example, the relatively large or long single tuber surfaces that z. B. according to the DE 200 04 016 U1 to be provided.
  • the lateral Beulschreib is thus increased.
  • the outwardly curved cross-sectional elements can be designed so that they can be introduced with a single tool and in a crosstie, resulting in the entire upper flange (upper shell) a total of four bends or curves. This results in an easier manufacturability than in the provision of extensive and adjoining curved elements, as for example from the EP 1 321 425 A1 is known.
  • the flat (or straight-sided or rectilinear) cross-section elements offer the possibility of positioning the edging tool very precisely, thus ensuring high process reliability.
  • the present invention provides an optimal synthesis between manufacturing and strength optimization.
  • the third flat cross-sectional element extends parallel to the vertical longitudinal plane of the Kranteleskopteils and forms the lower end of the upper flange.
  • the cross section runs through this arrangement at its lower end straight back down and can thus well merge into a corresponding extending lower chord, which also creates an optimized introduction of force at this junction.
  • the upper belt cross-section forms substantially the entire upper half of the telescopic part cross-section, i. the lower end is located substantially at the height of the vertical cross-section center.
  • At least one, in particular all transitions between the flat cross-sectional elements and the outwardly curved cross-sectional elements extends tangentially. This avoids voltage spikes at the junctions.
  • the length ratios can also be reversed depending on the individual case or equal lengths can be provided for the elements.
  • the second flat cross-sectional element is not longer than the third flat cross-sectional element.
  • the cross-sectional elements can be arranged exactly in the above-mentioned order from the central upper element to the outside. Further, the cross-sectional elements are arranged so that flat and curved elements alternate.
  • “Curvature” or “bend” here mean gradual, curved or curved transitions in contrast to creases or angular transitions (with and without welds).
  • the figure shows a cross section of a Kranteleskopteils, especially for a vehicle crane.
  • a telescopic boom usually consists of a base part and a plurality of telescopic shots, and according to the invention the base part and / or the telescopic shots can have the cross-sectional shape according to the invention.
  • the telescopic part cross section is generally designated by the reference numeral 10 and it has a top flange 11 (upper shell) and a Lower chord 12 (lower shell), which are connected to one another at the point marked 13, in particular welded.
  • the upper flange 11 has according to the invention on five flat cross-sectional elements and four outwardly curved cross-sectional elements. Also according to the invention, the flat elements alternate with the outward elements.
  • the upper flange 11 has a flat element 1, which in the present case extends on both sides symmetrically to the vertical longitudinal plane 14 and overall forms the longest flat cross-sectional element.
  • the curved cross-sectional elements 2 and 4 are preferably designed so that they can be introduced with a tool and in each case a Kantgang.
  • the top flange 11 then receives a total of four edgings (bends or bends). An accurate positioning of the Kant tool is possible during manufacture by the straight or flat sections 1, 3 and 5, which increases the process reliability.
  • the radii of the curved cross-sectional elements 2 and 4 are preferably designed so that they can be introduced with a tool and each with a Kantgang. Thus, a tool change during the production of Obergurtschalen is unnecessary.
  • the radii are chosen so that the different material properties, sheet thickness and edge angle are taken into account.
  • the Transitions are made as far as possible tangential to avoid voltage spikes.
  • the curved sections or the bends in the overall cross-section act as Beulsteifen, the straight sections facilitate the production and overall, therefore, according to the invention an optimized between these parameters cross-sectional shape is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Body Structure For Vehicles (AREA)

Claims (10)

  1. Section transversale de poutre supérieure pour une partie télescopique de grue, comportant un élément de section transversale plat central (1) et des éléments de section transversale supplémentaires plats et incurvés vers l'extérieur (2 à 5), dans laquelle, de chaque côté de section transversale, sont contigus à l'élément de section transversale plat central :
    - un premier élément de section transversale incurvé vers l'extérieur (2),
    - un deuxième élément de section transversale plat (3),
    - un second élément de section transversale incurvé vers l'extérieur (4), et
    - un troisième élément de section transversale plat (5),
    caractérisée en ce que le premier élément de section transversale incurvé vers l'extérieur (2) est plus fortement incurvé vers l'extérieur que le second élément de section transversale incurvé vers l'extérieur (4).
  2. Section transversale de poutre supérieure selon la revendication 1, caractérisée en ce que le troisième élément de section transversale plat (5) s'étend parallèlement au plan longitudinal vertical de la partie télescopique de grue et forme la terminaison inférieure de la poutre supérieure (11).
  3. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 ou 2, caractérisée en ce qu'elle forme sensiblement la moitié supérieure complète de la section transversale de la partie télescopique.
  4. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 à 3, caractérisée en ce qu'au moins une transition, en particulier toutes les transitions entre les éléments de section transversale plats (1, 3, 5) et les éléments de section transversale incurvés vers l'extérieur (2, 4) s'étendent de manière tangentielle.
  5. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le premier élément de section transversale incurvé vers l'extérieur (2) est plus long que le second élément de section transversale incurvé vers l'extérieur (4).
  6. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'élément de section transversale plat central (1) est plus long que le deuxième élément de section transversale plat (3).
  7. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le deuxième élément de section transversale plat (3) est plus long que le troisième élément de section transversale plat (5).
  8. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'élément de section transversale plat central (1) est de longueur égale ou plus court que le deuxième élément de section transversale plat (3).
  9. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le deuxième élément de section transversale plat (3) est de longueur égale ou plus court que le troisième élément de section transversale plat (5).
  10. Section transversale de poutre supérieure selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les éléments de section transversale (2 à 5) sont agencés de telle sorte que des éléments plats et incurvés sont alternés.
EP05014792A 2005-07-07 2005-07-07 Section de poutre supérieure pour grues télescopiques Expired - Lifetime EP1741663B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP05014792A EP1741663B1 (fr) 2005-07-07 2005-07-07 Section de poutre supérieure pour grues télescopiques
ES05014792T ES2357214T3 (es) 2005-07-07 2005-07-07 Sección de banda superior para grúas telescópicas .
DE502005010620T DE502005010620D1 (de) 2005-07-07 2005-07-07 Obergurtquerschnitt für Kranteleskopteile
CA2549448A CA2549448C (fr) 2005-07-07 2006-06-05 Section transversale de membrures superieures pour partie telescopique d'une grue
CNA2006100904707A CN1891612A (zh) 2005-07-07 2006-06-27 起重机伸缩部分的上弦横截面
JP2006184355A JP2007015860A (ja) 2005-07-07 2006-07-04 クレーンの伸縮可能部分の上弦断面
US11/481,052 US7413093B2 (en) 2005-07-07 2006-07-06 Upper chord cross-section for telescopic parts of a crane
KR1020060063951A KR20070006613A (ko) 2005-07-07 2006-07-07 크레인 신축자재부의 상위현

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05014792A EP1741663B1 (fr) 2005-07-07 2005-07-07 Section de poutre supérieure pour grues télescopiques

Publications (2)

Publication Number Publication Date
EP1741663A1 EP1741663A1 (fr) 2007-01-10
EP1741663B1 true EP1741663B1 (fr) 2010-12-01

Family

ID=35427413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05014792A Expired - Lifetime EP1741663B1 (fr) 2005-07-07 2005-07-07 Section de poutre supérieure pour grues télescopiques

Country Status (8)

Country Link
US (1) US7413093B2 (fr)
EP (1) EP1741663B1 (fr)
JP (1) JP2007015860A (fr)
KR (1) KR20070006613A (fr)
CN (1) CN1891612A (fr)
CA (1) CA2549448C (fr)
DE (1) DE502005010620D1 (fr)
ES (1) ES2357214T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2185462T3 (da) * 2007-09-05 2011-05-23 Palfinger Ag Profilform til en kranarm
DE102008032976B4 (de) * 2007-09-12 2018-02-22 Manitowoc Crane Group France Sas Teleskopkran-Auslegerteil
JP2010176277A (ja) * 2009-01-28 2010-08-12 Sanyo Electric Co Ltd データ転送システム
US20120199543A1 (en) * 2011-02-09 2012-08-09 Oshkosh Corporation Boom for a crane assembly
RU175228U1 (ru) * 2017-07-14 2017-11-28 Акционерное общество "Галичский автокрановый завод" Стрела подъёмного крана
WO2021105136A1 (fr) * 2019-11-27 2021-06-03 Magni Telescopic Handlers S.R.L. Manipulateur télescopique
CN111252678A (zh) * 2020-03-05 2020-06-09 中国华冶科工集团有限公司 塔吊变幅小车电机更换装置及更换方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19624312C2 (de) 1996-06-18 2000-05-31 Grove Us Llc Teleskopausleger für Fahrzeugkrane
DE19711975B4 (de) * 1997-03-12 2006-09-07 Terex-Demag Gmbh & Co. Kg Teleskopausleger für Fahrzeugkrane
FR2790538B1 (fr) * 1999-03-02 2001-05-25 Ppm Structure de poutre en caisson creux, poutre en faisant application et fleche telescopique la mettant en oeuvre
DE20004016U1 (de) 2000-03-03 2001-07-12 Liebherr-Werk Ehingen Gmbh, 89584 Ehingen Teleskopausleger für Krane, vorzugsweise Fahrzeugkrane
EP1278695A1 (fr) * 2000-03-28 2003-01-29 David J. Higgins Grue a fleche telescopique
DE10138443A1 (de) * 2001-08-03 2003-02-27 Mannesmann Roehren Werke Ag Verwendung eines langgestreckten warmgefertigten Hohlprofils für einen teleskopierbaren Ausleger einer Hubeinrichtung
DE20120121U1 (de) * 2001-12-12 2002-03-07 Grove U.S. LLC, Shady Grove, Pa. Teleskopausleger für einen Fahrzeugkran
US6726437B2 (en) * 2002-02-08 2004-04-27 Clark Equipment Company Telescoping loader lift arm
JP2005112514A (ja) * 2003-10-06 2005-04-28 Tadano Ltd 伸縮ブーム

Also Published As

Publication number Publication date
US7413093B2 (en) 2008-08-19
ES2357214T3 (es) 2011-04-20
CA2549448A1 (fr) 2007-01-07
KR20070006613A (ko) 2007-01-11
JP2007015860A (ja) 2007-01-25
DE502005010620D1 (de) 2011-01-13
US20070034588A1 (en) 2007-02-15
EP1741663A1 (fr) 2007-01-10
CN1891612A (zh) 2007-01-10
CA2549448C (fr) 2010-10-05

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