EP2196428A1 - Telescopic extender - Google Patents

Telescopic extender Download PDF

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Publication number
EP2196428A1
EP2196428A1 EP09075524A EP09075524A EP2196428A1 EP 2196428 A1 EP2196428 A1 EP 2196428A1 EP 09075524 A EP09075524 A EP 09075524A EP 09075524 A EP09075524 A EP 09075524A EP 2196428 A1 EP2196428 A1 EP 2196428A1
Authority
EP
European Patent Office
Prior art keywords
box
inner box
head
boom
locking
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
EP09075524A
Other languages
German (de)
French (fr)
Other versions
EP2196428B1 (en
Inventor
Martin Bauer
Thomas Dipl.-Ing. Krebs
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.)
Tadano Demag GmbH
Original Assignee
Terex Demag 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 Terex Demag GmbH filed Critical Terex Demag GmbH
Publication of EP2196428A1 publication Critical patent/EP2196428A1/en
Application granted granted Critical
Publication of EP2196428B1 publication Critical patent/EP2196428B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
    • 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

Definitions

  • the invention relates to a telescopic boom, in particular telescopic boom for mobile crane, with a base box in which one or more inner boxes are guided substantially coaxially in each other, which are successively by a trained as a hydraulic cylinder / piston system telescoping selectively on - and extendable, wherein the hydraulic cylinder / piston system is fixed at one of its two ends in the base box and with its extendable part by means of a coupling device (SVE) can be coupled to the respectively to be moved Innernenkasten and the respective inner box in at least one retracted and in its extended position respectively a bolting device which can be actuated by the securing and locking units (SVE) can be mechanically locked relative to the next larger inner box or the base box and can be unlocked immediately before the method for carrying out the coupling, and wherein at the first innermost inner box at the outer end of a head with or without pulleys is provided and the head is formed such that all parts belonging to the head outside the free cross-section of this inner box
  • the object of the invention is to introduce, in particular bringing together the new To facilitate box with the receiving inner box.
  • the bilaterally arranged on the head, forwardly open Verbolzungsgabeln allow easy insertion of the new inner box to be inserted with its also on both sides, congruent with the Verbolzungsgabeln arranged locking bolt.
  • the telescoping system moves so far in the box to be inserted, that with the extendable cylinder Verbolzungs coupled (SVE) connects the box (secures) and then mechanically unlock the locking bolt. Then we put the box to be inserted with the telescoping unit in the existing boom part and can be locked at any locking point again. This process is carried out automatically by means of an existing controller. Dismantling takes place in reverse order.
  • the receiving box of a telescopic boom which may be an inner box or the base box, is indicated in the figures with 1.
  • This box is at its front end with one Head 8, which carries the pulleys 9, equipped, this head is arranged with all its functional parts so that it surrounds the outer periphery of the box 1, so that the front clear cross-sectional area remains free.
  • a new inner box 2 can be inserted into this female box 1 to extend the boom.
  • This inner box is provided with the usual locking bolt 4 at its rear end.
  • the locking pin 4 are inserted, so that so that the two boxes are positioned to each other.
  • FIG. 3 shows the arranged inside the boxes telescopic system 6,10 with the securing and locking device 7, which is located on the extendable cylinder 10.
  • the telescoping system moves so far in the box 2 to be inserted, that with the extendable cylinder 10 Verbolzungs worn (SVE) 7 couples the box (secures) and then mechanically lock the locking pin 4 can unlock. Thereafter, we inserted the box 2 with the telescoping unit in the existing boom part 1 and can be locked at any locking point again.
  • SVE Verbolzungs worn

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

The boom has a base box (1) in which multiple inner boxes are guided coaxial to each other. A head (8) is provided with or without a deflection roller in an inner most inner box at an outer sided end. A bolting fork (3) is arranged at an inner side of the head, and is opened forward in a diametrical opposed manner, where a locking bolt (4) of an intermittent new inner box (2) is inserted into center of the bolting fork. A telescopic system with a safety-and bolting device is inserted/extended for coupling the inner box (2) upto a position of the locking bolt.

Description

Die Erfindung betrifft einen Teleskopausleger, insbesondere Teleskopausleger für Mobilkran, mit einem Grundkasten, in dem ein oder mehrere Innenkästen im wesentlichen koaxial in einander geführt sind, die nacheinander durch ein als hydraulisches Zylinder/Kolben-System ausgebildetes Teleskopiersystem wahlweise ein - und ausfahrbar sind, wobei das hydraulische Zylinder/Kolben-System an einem seiner beiden Enden im Grundkasten fixiert ist und mit seinem ausfahrbarem Teil mittels einer Koppeleinrichtung (SVE) an den jeweils zu verfahrenden Innnenkasten ankoppelbar ist und der jeweilige Innenkasten in mindestens einer eingefahrenen und in seiner ausgefahrenen Stellung jeweils durch eine von den Sicherungs- und Verriegelungseinheiten (SVE) betätigbare Verbolzungseinrichtung gegenüber dem nächstgrößeren Innenkasten oder dem Grundkasten mechanisch verriegelbar und unmittelbar vor dem Verfahren zur Durchführung des Ankoppelns entriegelbar ist,
und wobei am zunächst innersten Innenkasten am außenseitigen Ende ein Kopf mit oder ohne Umlenkrollen vorgesehen ist und der Kopf derart ausgebildet ist, dass alle zum Kopf gehörenden Teile außerhalb des freien Querschnittes dieses Innenkastens angeordnet sind, so dass für eine Verlängerung des Auslegers ein weiterer Auslegerkasten in diesen Innenkasten einschiebbar ist.The invention relates to a telescopic boom, in particular telescopic boom for mobile crane, with a base box in which one or more inner boxes are guided substantially coaxially in each other, which are successively by a trained as a hydraulic cylinder / piston system telescoping selectively on - and extendable, wherein the hydraulic cylinder / piston system is fixed at one of its two ends in the base box and with its extendable part by means of a coupling device (SVE) can be coupled to the respectively to be moved Innernenkasten and the respective inner box in at least one retracted and in its extended position respectively a bolting device which can be actuated by the securing and locking units (SVE) can be mechanically locked relative to the next larger inner box or the base box and can be unlocked immediately before the method for carrying out the coupling,
and wherein at the first innermost inner box at the outer end of a head with or without pulleys is provided and the head is formed such that all parts belonging to the head outside the free cross-section of this inner box are arranged so that for an extension of the boom another boom box in this inner box is inserted.

Aus der DE 101 42 847 C1 ist ein Teleskopausleger mit einer derartig ausgebildeten Sicherungs- und Verriegelungseinheit- kurz SVE genannt - bekannt.From the DE 101 42 847 C1 is a telescopic boom with such a trained locking and locking unit - shortly called SVE - known.

Weiterhin ist es aus der DE 10 2006 023 371 A1 bekannt den Kranausleger verlängerbar auszugestalten, wozu der die Umlenkrolle aufnehmende Kopf so gestaltet ist, dass alle für die Funktion des Kopfes notwendigen Teile am Außenumfang des bis dahin innersten Kastens angeordnet sind, so dass der vordere Querschnitt dieses innersten Kastens so frei ist, dass ein der weiteren Verlängerung dienender Kasten in diesen bisher innersten Kasten einschiebbar ist.Furthermore, it is from the DE 10 2006 023 371 A1 Known extensible to design the crane boom, for which the deflection roller receiving head is designed so that all necessary for the function of the head parts are arranged on the outer periphery of the innermost box so far, so that the front cross section of this innermost box is so free that one of further extension serving box in this hitherto innermost box can be inserted.

Aufgabe der Erfindung ist es, das Einführen, insbesondere Zusammenbringen des neuen Kastens mit dem aufnehmenden Innenkasten zu erleichtern.The object of the invention is to introduce, in particular bringing together the new To facilitate box with the receiving inner box.

Gelöst wird diese Aufgabe erfindungsgemäß dadurch, dass an der Innenseite des Kopfes sich diametral gegenüberliegend je eine nach vorne offene Verbolzungsgabel angeordnet ist, in die die Verriegelungsbolzen des einzuschiebenden neuen Innenkastens zu dessen Zentrierung einführbar sind und dass die Sicherungs- und Verriegelungseinheit zum Ankoppeln dieses Innenkastens bis zur Position des Verriegelungsbolzens vorfahr- bzw. ausfahrbar ist.This object is achieved according to the invention in that on the inside of the head diametrically opposite each a forwardly open Verbolzungsgabel is arranged, in which the locking bolts of the inserted new inner box to its centering are inserted and that the locking and locking unit for coupling this inner box up to the position of the locking bolt is advancing or retractable.

Die beidseitig am Kopf angeordneten, nach vorn offenen Verbolzungsgabeln ermöglichen ein einfaches Einfädeln des einzuschiebenden neuen Innenkastens mit seinem ebenfalls beidseitig, kongruent zu den Verbolzungsgabeln angeordneten Verriegelungsbolzen.
Das Teleskopiersystem fährt soweit in den einzuschiebenden Kasten, dass die mit der am ausfahrbaren Zylinder befindlichen Verbolzungseinrichtung (SVE) den Kasten ankoppelt (sichert) und anschließend mechanisch die Verriegelungsbolzen entriegeln kann.
Danach wir der einzuschiebende Kasten mit der Teleskopiereinheit in das vorhandene Auslegerteil hineingezogen und kann an jeder beliebigen Verriegelungsstelle wieder verriegelt werden. Dieser Vorgang erfolgt automatisch mittels vorhandener Steuerung.
Die Demontage erfolgt in umgekehrter Reihenfolge.The bilaterally arranged on the head, forwardly open Verbolzungsgabeln allow easy insertion of the new inner box to be inserted with its also on both sides, congruent with the Verbolzungsgabeln arranged locking bolt.
The telescoping system moves so far in the box to be inserted, that with the extendable cylinder Verbolzungseinrichtung (SVE) connects the box (secures) and then mechanically unlock the locking bolt.
Then we put the box to be inserted with the telescoping unit in the existing boom part and can be locked at any locking point again. This process is carried out automatically by means of an existing controller.
Dismantling takes place in reverse order.

Die Erfindung soll nachfolgend mit Bezug auf die Zeichnungen erläutert werden. Dabei zeigt:

  • Fig.1 eine perspektivische Ansicht des Kopfes eines aufnehmenden Kastens eines Teleskopauslegers und einen in diesen einzuführenden neuen Kasten,
  • Fig.2 das Einführen und
  • Fig.3 den eingeführten und den aufnehmenden Kasten jeweils aufgeschnitten mit dem darin angeordneten Teleskopiersystem und der Sicherungs- und Verriegelungseinrichtung SVE.
The invention will be explained below with reference to the drawings. Showing:
  • Fig.1 a perspective view of the head of a receiving box of a telescopic boom and a new box to be introduced in this,
  • Fig.2 introducing and
  • Figure 3 the inserted and the receiving box each cut open with the telescopic system disposed therein and the securing and locking device SVE.

Der aufnehmende Kasten eines Teleskopauslegers, der ein Innenkasten oder auch der Grundkasten sein kann, ist in den Figuren mit 1 bezeichnet.The receiving box of a telescopic boom, which may be an inner box or the base box, is indicated in the figures with 1.

Gemäß der DE 10 2006 023 371 A1 ist dieser Kasten an seinem vorderen Ende mit einem Kopf 8, der die Umlenkrollen 9 trägt, ausgerüstet, wobei dieser Kopf mit allen seinen Funktionsteilen so angeordnet ist, dass er den Außenumfang des Kastens 1 umgibt, so dass dessen vordere lichte Querschnittsfläche frei bleibt.
Damit kann zur Verlängerung des Auslegers ein neuer Innenkasten 2 in diesen aufnehmenden Kasten 1 eingeschoben werden.According to the DE 10 2006 023 371 A1 This box is at its front end with one Head 8, which carries the pulleys 9, equipped, this head is arranged with all its functional parts so that it surrounds the outer periphery of the box 1, so that the front clear cross-sectional area remains free.
Thus, a new inner box 2 can be inserted into this female box 1 to extend the boom.

Dieser Innenkasten ist mit dem üblichen Verriegelungsbolzen 4 an seinem hinteren Ende versehen.This inner box is provided with the usual locking bolt 4 at its rear end.

Um nun das Zusammenbringen der beiden Kästen 1 und 2 zu erleichtern, sind am Kopf 8, und zwar an dessen Innenseite, sich diametral gegenüberliegend nach vorne offen Verbolzungsgabeln 3 angebracht.In order to facilitate the bringing together of the two boxes 1 and 2, are at the head 8, on the inside, diametrically opposite open forward Verbolzungsgabeln 3 attached.

In diese werden die Verriegelungsbolzen 4 eingeführt, so dass damit die beiden Kästen zueinander positioniert werden.In this, the locking pin 4 are inserted, so that so that the two boxes are positioned to each other.

Dies ist in der Figur 2 dargestellt.This is in the FIG. 2 shown.

Die Figur 3 zeigt die im Inneren der Kästen angeordnete Teleskopiersystem 6,10 mit der Sicherungs- und Verriegelungseinrichtung 7, die sich am ausfahrbaren Zylinder 10 befindet.The FIG. 3 shows the arranged inside the boxes telescopic system 6,10 with the securing and locking device 7, which is located on the extendable cylinder 10.

Das Teleskopiersystem fährt soweit in den einzuschiebenden Kasten 2, dass die mit der am ausfahrbaren Zylinder 10 befindlichen Verbolzungseinrichtung (SVE) 7 den Kasten ankoppelt (sichert) und anschließend mechanisch die Verriegelungsbolzen 4 entriegeln kann.
Danach wir der einzuschiebende Kasten 2 mit der Teleskopiereinheit in das vorhandene Auslegerteil 1 hineingezogen und kann an jeder beliebigen Verriegelungsstelle wieder verriegelt werden.The telescoping system moves so far in the box 2 to be inserted, that with the extendable cylinder 10 Verbolzungseinrichtung (SVE) 7 couples the box (secures) and then mechanically lock the locking pin 4 can unlock.
Thereafter, we inserted the box 2 with the telescoping unit in the existing boom part 1 and can be locked at any locking point again.

Claims (1)

Teleskopausleger, insbesondere Teleskopausleger für Mobilkran, mit einem Grundkasten (1), in dem ein oder mehrere Innenkästen im wesentlichen koaxial in einander geführt sind, die nacheinander durch ein als hydraulisches Zylinder/Kolben-System ausgebildetes Teleskopiersystem ((6,10) wahlweise ein - und ausfahrbar sind, wobei das hydraulische Zylinder/Kolben-System an einem seiner beiden Enden im Grundkasten fixiert ist und mit seinem ausfahrbarem Teil mittels einer Koppeleinrichtung an den jeweils zu verfahrenden Innnenkasten ankoppelbar ist und der jeweilige Innenkasten in mindestens einer eingefahrenen und in seiner ausgefahrenen Stellung jeweils durch eine von den Sicherungs- und Verriegelungseinheiten (7) betätigbare Verbolzungseinrichtung gegenüber dem nächstgrößeren Innenkasten oder dem Grundkasten mechanisch verriegelbar und unmittelbar vor dem Verfahren zur Durchführung des Ankoppelns entriegelbar ist, und wobei am zunächst innersten Innenkasten am außenseitigen Ende ein Kopf (8) mit oder ohne Umlenkrollen vorgesehen ist und der Kopf derart ausgebildet ist, dass alle zum Kopf gehörenden Teile außerhalb des freien Querschnittes dieses Innenkastens angeordnet sind, so dass für eine Verlängerung des Auslegers ein weiterer Auslegerkasten in diesen Innenkasten einschiebbar ist,
dadurch gekennzeichnet,
dass an der Innenseite des Kopfes (8) sich diametral gegenüberliegend je eine nach vorne offene Verbolzungsgabel (3) angeordnet ist, in die die Verriegelungsbolzen (4) des einzuschiebenden neuen Innenkastens (2) zu dessen Zentrierung einführbar sind und dass das Teleskopiersystem (6,10) mit der die Sicherungs- und Verriegelungseinheit (7) zum Ankoppeln diese Innenkastens bis zur Position des Verriegelungsbolzens (4) vorfahr- bzw. ausfahrbar ist.Telescopic boom, in particular telescopic boom for mobile crane, with a base box (1), in which one or more inner boxes are guided substantially coaxially in each other, which can be successively by a trained as a hydraulic cylinder / piston system telescopic system ((6,10) optionally one - and are extendable, wherein the hydraulic cylinder / piston system is fixed at one of its two ends in the base box and can be coupled with its extendable part by means of a coupling device to each to be moved Innernenkasten and the respective inner box in at least one retracted and in its extended position in each case by one of the securing and locking units (7) operable Verbolzungseinrichtung over the next larger inner box or the base box mechanically lockable and unlocked immediately before the method for performing the coupling, and wherein the first innermost inner box at the outside end a head (8) is provided with or without pulleys and the head is designed such that all parts belonging to the head are arranged outside the free cross section of this inner box, so that for an extension of the boom another boom box is inserted into this inner box,
characterized,
that on the inside of the head (8) diametrically opposite each a forwardly open Verbolzungsgabel (3) is arranged, in which the locking bolt (4) of the inserted new inner box (2) are insertable for centering and that the telescoping system (6, 10) with which the securing and locking unit (7) for coupling this inner box to the position of the locking bolt (4) is advancing or retractable.
EP20090075524 2008-12-15 2009-11-27 Telescopic extender Active EP2196428B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200820016604 DE202008016604U1 (en) 2008-12-15 2008-12-15 telescopic boom

Publications (2)

Publication Number Publication Date
EP2196428A1 true EP2196428A1 (en) 2010-06-16
EP2196428B1 EP2196428B1 (en) 2013-07-31

Family

ID=40459454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090075524 Active EP2196428B1 (en) 2008-12-15 2009-11-27 Telescopic extender

Country Status (4)

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EP (1) EP2196428B1 (en)
CN (1) CN101746682B (en)
DE (1) DE202008016604U1 (en)
ES (1) ES2432523T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013011173A1 (en) * 2013-07-04 2015-01-08 Liebherr-Werk Ehingen Gmbh Method for assembling a crane as well as articulation, telescopic boom and crane

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022084003A (en) * 2020-11-25 2022-06-06 タダノ デマグ ゲーエムベーハー Telescopic jib system of mobile crane with basic telescopic jib and additional telescopic jib and corresponding method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0673876A1 (en) * 1994-03-18 1995-09-27 Horst Dipl.-Ing. Zimmermann Telescopic rod
DE19824672A1 (en) * 1997-05-28 1998-12-03 Mannesmann Ag Telescopic boom crane
DE10142847C1 (en) * 2001-08-29 2002-11-21 Demag Mobile Cranes Gmbh & Co Telescopic extension, for mobile crane, has inner casings extended in succession via hydraulic two-stage piston/cylinder system
DE102006023371A1 (en) * 2006-05-16 2007-11-22 Terex-Demag Gmbh & Co. Kg Telescopic crane jib
WO2009056122A1 (en) * 2007-10-31 2009-05-07 Terex-Demag Gmbh Crane having telescoping boom

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492311A (en) * 1981-08-17 1985-01-08 Fmc Corporation Coupling and latching mechanism for extensible boom
US4664272A (en) * 1981-11-05 1987-05-12 Kidde, Inc. Telescoping crane boom with locking and indicator means
DE29824453U1 (en) * 1997-05-28 2001-03-01 Mannesmann Ag Crane with a telescopic boom

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0673876A1 (en) * 1994-03-18 1995-09-27 Horst Dipl.-Ing. Zimmermann Telescopic rod
DE19824672A1 (en) * 1997-05-28 1998-12-03 Mannesmann Ag Telescopic boom crane
DE10142847C1 (en) * 2001-08-29 2002-11-21 Demag Mobile Cranes Gmbh & Co Telescopic extension, for mobile crane, has inner casings extended in succession via hydraulic two-stage piston/cylinder system
DE102006023371A1 (en) * 2006-05-16 2007-11-22 Terex-Demag Gmbh & Co. Kg Telescopic crane jib
WO2009056122A1 (en) * 2007-10-31 2009-05-07 Terex-Demag Gmbh Crane having telescoping boom

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013011173A1 (en) * 2013-07-04 2015-01-08 Liebherr-Werk Ehingen Gmbh Method for assembling a crane as well as articulation, telescopic boom and crane
US9376293B2 (en) 2013-07-04 2016-06-28 Liebherr-Werk Ehingen Gmbh Method of assembling a crane and coupling section, telescopic boom and crane
DE102013011173B4 (en) 2013-07-04 2019-05-23 Liebherr-Werk Ehingen Gmbh Method for assembling a crane as well as articulation, telescopic boom and crane

Also Published As

Publication number Publication date
DE202008016604U1 (en) 2009-03-19
ES2432523T3 (en) 2013-12-04
EP2196428B1 (en) 2013-07-31
CN101746682A (en) 2010-06-23
CN101746682B (en) 2014-04-30

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