EP1477451B1 - Abwinklungsvorrichtung für eine Auslegerverlängerung eines Mobilkrans - Google Patents

Abwinklungsvorrichtung für eine Auslegerverlängerung eines Mobilkrans Download PDF

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Publication number
EP1477451B1
EP1477451B1 EP04006222A EP04006222A EP1477451B1 EP 1477451 B1 EP1477451 B1 EP 1477451B1 EP 04006222 A EP04006222 A EP 04006222A EP 04006222 A EP04006222 A EP 04006222A EP 1477451 B1 EP1477451 B1 EP 1477451B1
Authority
EP
European Patent Office
Prior art keywords
bending device
folding
set forth
piston
folding pinnacle
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
EP04006222A
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German (de)
English (en)
French (fr)
Other versions
EP1477451A2 (de
EP1477451A3 (de
Inventor
Jan Hinrichs
Dieter Stührwoldt
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
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Filing date
Publication date
Application filed by Grove US LLC filed Critical Grove US LLC
Publication of EP1477451A2 publication Critical patent/EP1477451A2/de
Publication of EP1477451A3 publication Critical patent/EP1477451A3/de
Application granted granted Critical
Publication of EP1477451B1 publication Critical patent/EP1477451B1/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
    • B66C23/62—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
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom

Definitions

  • the present invention relates to a folding tip bending device for a mobile crane.
  • folding tips serve as a boom extension on mobile cranes.
  • Such an insert is shown in the accompanying Figure 1.
  • the mobile crane 20 carries a folding tip 10 fastened to its outermost shot, which can be angled by means of a bending device 9 in such a way that a projection over the edge of the building is made possible.
  • flap tip benders There are two different types of flap tip benders known in the art. On the one hand, these are mechanically adjustable rods in the upper or tensile load region of the joint region and, on the other hand, hydraulic cylinder bending devices in the lower or pressure region of the joint region.
  • FIG. 2 shows a bending device according to the prior art with a hydraulic cylinder 17 in the lower pressure load region of the joint region 9 '.
  • the hydraulic cylinder 17 is controlled via the inflow and outflow of a hydraulic fluid and thus changed in length.
  • This has the advantage that the angle adjustment from the crane cab can be operated in all main boom positions. Disadvantageously, however, high production costs, which are not always accepted.
  • Such a unwinding apparatus is disclosed in FR-A-2 719 574 which corresponds to the preamble of claim 1.
  • adjustment measures for the folding tip angle should be able to be carried out easily and safely.
  • a folding tip bending device for a mobile crane with a joint region, by the angling of the angle of the folding tip is adjusted and which has a joint in the upper and in the tensile load range
  • the advantages of the invention based on the fact that the joint area in the lower or Compression area has a mechanically detectable telescopic device.
  • a hydraulically-free telescoping device is provided which merely comprises means which are suitable for its mechanical adjustment and determination in desired lengths.
  • such a solution offers a relatively inexpensive alternative, since the cost of expensive hydraulic cylinders, for the hydraulic supply and the control and monitoring can be saved.
  • the telescoping device or the telescopic tube has a holding element and an extendable element.
  • the support member is hingedly attached to the side of the hinge region toward the base of the folding tip, and the extendable member is hinged to the side of the hinge region towards the tip of the folding tip.
  • the support elements for the extendable element can be arranged on the support member.
  • the telescoping device In the lower or pressure load area, the telescoping device only has to be designed so that it supports the upper part of the folding tip angled against the base of the folding top.
  • the support is sufficient, it is not necessary to provide a bi-directional detection, i. the upper part of the folding tip is sufficiently detected when a one-sided support against further reduction of the folding tip angle is available in the telescoping device.
  • the selected support element is installed, the hinge area is located at a low height above the ground and accident risk is avoided. Only when lifting the boom, the telescoping device then moves until the support blocks and sets a certain angle. It can therefore be an uncomplicated and safe pre-adjustment of the folding tip angle on the ground.
  • the attachment of the support member to the base of the folding tip side of the hinge portion forms according to a preferred embodiment of the invention, one of the support devices.
  • This component leaves So use in two ways and on the one hand provides the hinge attachment and on the other hand for the counter-support at the largest presettable tip angle.
  • the telescoping device has a round or square base tube (as a holding element) and an extendable piston (as an extendable element), wherein the base tube has transverse bores for receiving support bolts, which support the piston at its lower end.
  • the telescoping device has a fuse which prevents its telescopic components from disengaging from each other.
  • this fuse can be a spacer sleeve, which is arranged between the lower, supporting end of the extendable member and the upper end of the support member and can serve as a fallback for the folding seats. This fuse or spacer preferably limits the maximum length of the telescoping device.
  • FIGS. 4 and 5 the expensive embodiment of a bending device with a hydraulic cylinder according to the prior art (FIG. 4) is compared with an embodiment according to the invention.
  • FIG. 4 shows the hinge region 9 'of the folding tip, wherein a hydraulic cylinder 17 is arranged between two joints on the lower side, where there is a compressive load.
  • a telescopic tube 7 is now used according to the invention ( Figure 5) instead of the hydraulic cylinder.
  • Figure 5 instead of the hydraulic cylinder.
  • all remaining components of the folding top or the joint region 9 can be used.
  • the upper part of the folding top which runs to the right in FIG.
  • the base tube 7a has, as also apparent from Figure 7, which shows a cross section at the point with the bolt 2 in Figure 6, transverse bores, one of which is indicated by the reference numeral 6. Support bolts 2, one of which is shown in FIG. 6, can be inserted into these transverse bores. These support bolts support the lower part of the piston 7b (at different points) in certain lengths for the entire telescopic tube 7.
  • the base tube 7a need not be worked on the inside.
  • the centering is realized via the bolt 2 and the fillet or groove in the piston head 3 in one axis and in the other axis by the piston 7b and the weld-in hubs provided with the reference numeral 4, so that the guide is independent of the manufacturing tolerances of the tube.
  • the welding hubs 4 form, as is apparent in particular from Figure 7, reinforcements at the edges of the through holes 6, which can be reduced by larger sheet thicknesses, the surface pressure between pin 2 and pipe wall.
  • the welding hubs 4 thus have two functions, namely the one hand, the centering of the piston 7b in the base tube 7a and on the other hand, the gain as support elements in the region of the through holes.
  • Figures 9 and 10 show the erection of the boom of a mobile crane 20 with the folding tip 10. Since the piston 7b, as shown in Figures 5 to 8, itself is only one-sidedly supported on one of the selected or inserted bolts (2 or 1), the setting of the bolts can readily be done in a state in which the crane tip has no or only a very small bend, as shown in Figure 9.
  • the end angle position can be adjusted by setting the bolt in the base tube 7a of the telescopic tube 7 at the desired location at a relatively low height. Then, as shown in Figure 10, the boom is raised, the telescopic tube 7 shortens until the piston 7b on the bolt (2 or 1) meets and is supported.
EP04006222A 2003-05-13 2004-03-16 Abwinklungsvorrichtung für eine Auslegerverlängerung eines Mobilkrans Expired - Lifetime EP1477451B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10321493 2003-05-13
DE10321493A DE10321493B4 (de) 2003-05-13 2003-05-13 Klappspitzen-Abwinklungsvorrichtung

Publications (3)

Publication Number Publication Date
EP1477451A2 EP1477451A2 (de) 2004-11-17
EP1477451A3 EP1477451A3 (de) 2005-11-16
EP1477451B1 true EP1477451B1 (de) 2007-02-28

Family

ID=33016375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04006222A Expired - Lifetime EP1477451B1 (de) 2003-05-13 2004-03-16 Abwinklungsvorrichtung für eine Auslegerverlängerung eines Mobilkrans

Country Status (7)

Country Link
US (1) US7131548B2 (es)
EP (1) EP1477451B1 (es)
JP (1) JP4727946B2 (es)
CN (1) CN100354195C (es)
CA (1) CA2465464C (es)
DE (2) DE10321493B4 (es)
ES (1) ES2279244T3 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8640896B2 (en) 2009-05-22 2014-02-04 Terex Cranes Germany Gmbh Angle adjustment of a jib system
WO2018036181A1 (zh) * 2016-08-25 2018-03-01 徐州重型机械有限公司 桁架臂结构及起重机

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DE102005049606B4 (de) * 2005-10-17 2016-03-31 Liebherr-Werk Ehingen Gmbh Fahrzeugkran mit Zusatzausleger und Verfahren zur Demontage des Hilfsauslegers
DE202007012204U1 (de) * 2007-08-29 2007-10-31 Terex-Demag Gmbh & Co. Kg Element zum Verbinden eines Gittersystems
AT505729B1 (de) * 2007-09-11 2010-10-15 Ehrenleitner Franz Zusammenklappbarer ausleger
US7878346B1 (en) 2008-08-25 2011-02-01 Link-Belt Construction Equipment Co., L.P., Lllp Adaptable boom extension for a mobile crane having a telescoping boom
DE202008015659U1 (de) 2008-11-26 2009-03-19 Palfinger Ag Kranspitze für einen Ladekran
DE102009010452A1 (de) * 2009-02-26 2010-09-02 Terex-Demag Gmbh Verfahren und Einrichtung zum An-und Abbau einer Zusatzeinrichtung am Hauptausleger eines Mobilkrans
US8739988B2 (en) * 2010-09-20 2014-06-03 Manitowoc Crane Companies, Llc Pinned connection system for crane column segments
DE202010014104U1 (de) * 2010-10-08 2012-01-10 Liebherr-Werk Ehingen Gmbh Auslegerelement, Ausleger sowie Baufahrzeug
JP5609686B2 (ja) * 2011-02-04 2014-10-22 コベルコクレーン株式会社 移動式クレーン
CN102718156B (zh) * 2012-06-29 2014-05-21 三一重工股份有限公司 起重机臂架系统及起重机
CN102756978A (zh) * 2012-07-20 2012-10-31 辽宁抚挖重工机械股份有限公司 一种履带起重机折叠臂
DE102013006259A1 (de) * 2013-04-11 2014-10-16 Liebherr-Werk Ehingen Gmbh Teleskopausleger und Kran
CN103449319B (zh) * 2013-09-06 2015-12-02 中联重科股份有限公司 起重臂及起重机
CN103601084B (zh) * 2013-11-29 2015-08-12 三一汽车起重机械有限公司 臂尖滑轮机构、臂尖滑轮机构的自拆装方法及起重机
CN104071710B (zh) * 2014-07-01 2017-08-25 徐工集团工程机械股份有限公司 一种起重机及其无级变幅副臂装置
DE102015002626A1 (de) * 2015-03-03 2016-09-08 Liebherr-Werk Ehingen Gmbh Teleskopausleger eines Krans und Verfahren zu seiner Abspannung, sowie zum Aufrichten von Teleskopverlängerungen
CN105060140B (zh) * 2015-08-19 2018-03-16 徐州重型机械有限公司 起重机的副臂、起重臂和起重机
DE102015119379B3 (de) 2015-11-10 2017-03-30 Terex Global Gmbh Mobilkran und Verfahren zum Abwinkeln einer Hauptauslegerverlängerung relativ zu einem Hauptausleger eines Mobilkrans
DE102015119381B3 (de) * 2015-11-10 2017-04-27 Terex Global Gmbh Mobilkran und Verfahren zum Abwinkeln einer Hauptauslegerverlängerung relativ zu einem Hauptausleger eines Mobilkrans
DE102015120350B3 (de) 2015-11-24 2017-05-24 Terex Global Gmbh Mobilkran zum Abwinkeln einer Hauptauslegerverlängerung relativ zu einem Hauptausleger eines Mobilkrans
DE102018115519B3 (de) 2018-06-27 2019-09-12 Terex Global Gmbh Fahrzeugkran mit einem beweglichen Adapter zwischen Hauptausleger und Hauptauslegerverlängerung
CN110193869A (zh) * 2019-07-09 2019-09-03 邢珊珊 一种含折叠挤压机构的木材加工机
CN111943063B (zh) * 2020-08-19 2022-08-12 东台市杰顺机械制造有限公司 一种用于飞轮壳加工生产的柔性紧固提拉装置

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Publication number Priority date Publication date Assignee Title
US8640896B2 (en) 2009-05-22 2014-02-04 Terex Cranes Germany Gmbh Angle adjustment of a jib system
WO2018036181A1 (zh) * 2016-08-25 2018-03-01 徐州重型机械有限公司 桁架臂结构及起重机

Also Published As

Publication number Publication date
CN1621334A (zh) 2005-06-01
EP1477451A2 (de) 2004-11-17
CN100354195C (zh) 2007-12-12
ES2279244T3 (es) 2007-08-16
DE10321493A1 (de) 2004-12-23
CA2465464A1 (en) 2004-11-13
DE502004003002D1 (de) 2007-04-12
EP1477451A3 (de) 2005-11-16
CA2465464C (en) 2010-01-19
US20050011850A1 (en) 2005-01-20
DE10321493B4 (de) 2006-07-20
JP2004338953A (ja) 2004-12-02
JP4727946B2 (ja) 2011-07-20
US7131548B2 (en) 2006-11-07

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