EP1749790A2 - Système pour régler une flèche de grue relevable - Google Patents

Système pour régler une flèche de grue relevable Download PDF

Info

Publication number: EP1749790A2
Authority: EP; European Patent Office
Prior art keywords: connecting means; adjusting; boom; adjusting piston; piston
Prior art date: 2005-08-01
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

EP06013345A

Other languages

German (de)

English (en)

Other versions

EP1749790A3 (fr

EP1749790B1 (fr

Inventor

Horst Zerza

Norbert Dr. Stanger

Jacek Krupinski

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 Biberach GmbH

Original Assignee

Liebherr Werk Biberach 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.)

2005-08-01

Filing date

2006-06-28

Publication date

2007-02-07

2006-06-28 Application filed by Liebherr Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH

2007-02-07 Publication of EP1749790A2 publication Critical patent/EP1749790A2/fr

2008-01-23 Publication of EP1749790A3 publication Critical patent/EP1749790A3/fr

2009-09-16 Application granted granted Critical

2009-09-16 Publication of EP1749790B1 publication Critical patent/EP1749790B1/fr

Status Not-in-force legal-status Critical Current

2026-06-28 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
- B66C23/82—Luffing 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/26—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 specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
- B66C23/348—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes the erection being operated by jacks

Definitions

the present invention relates to a system for adjusting a boom of a crane.
Cranes are known in many different embodiments. Especially with fast-erecting cranes, it is known not only to use the boom in the horizontal position, but also to adjust the hook height in a steep position to improve. Serves a unit of adjusting and adjusting piston, wherein the adjusting piston is guided longitudinally displaceable in the adjusting cylinder.
the adjusting cylinder is articulated to a support of the crane.
the adjusting piston communicates with the guy rod, which in turn is articulated on the boom.
a disadvantage of such cranes is that the operational adjustment of the boom is possible only in the region which is predetermined by the adjustment of the adjusting.
the present invention has for its object to increase the adjustment of the boom and thus to allow a more flexible Kransch.
the guy rod is attached in its first end portion to the boom and its second end portion is in communication with the adjusting piston, wherein the tie rod in its second end portion has a first and one of which spaced in the longitudinal direction of the guy rod second connecting means and / or wherein the adjusting piston has a first and a second connecting means spaced therefrom in the direction of movement of the adjusting piston, wherein the connecting means are designed such that the anchoring rod can be connected to the adjusting piston by means of the connecting means.
the guy rod has two connecting means spaced apart in the longitudinal direction of the tie rod in its end region directed towards the adjusting piston and / or that the adjusting piston has two connecting means spaced apart in its direction of movement, so that different mounting positions can be realized and different angular ranges depending on the mounting position are adjustable, in which the boom is movable depending on the position of the adjusting piston.
the connecting means are largely arbitrary.
the connecting means are designed as holes or elongated holes or as bores and the like, in which a bolt is received for the purpose of connection. In this way, the adjusting piston and the tie rod can be easily connected.
the connecting means are arranged such that the distance of the connecting means of the guy rod or the distance of the connecting means of the adjusting or the sum of both distances the maximum displacement, ie the stroke of the adjusting correspond. If this is the case, there is the advantage that the adjustment ranges of the arm adjoin one another in the case of different mounting positions, so that a comparatively large angular range can be fully utilized.
both the boom and the adjusting piston have first and second connecting means
the same boom position results if the first connecting means of the tie rod is connected to the first connecting means of the adjusting piston and the adjusting piston is in an extended position, as if the second connecting means of the guy rod is connected to the second connecting means of the adjusting piston and the adjusting piston is in a retracted position.
the second connection means are closer to the end region of the guy rod and the adjusting piston than the respective first connection means.
the guy rod has in its second end region two spaced apart tabs, which have the first and second connecting means of the guy rod, wherein the distance of the tabs is selected so that the adjusting cylinder and / or the adjusting between the Latches can be received and pivoted.
the connecting means are arranged such that the boom is in a first up position when the second connecting means communicate with each other and the adjusting piston is in the retracted position.
the connecting means are arranged such that the boom is in a horizontal or substantially horizontal position, when the second connecting means communicate with each other and the adjusting piston is in the extended position.
the connecting means are arranged such that the boom is in a horizontal or substantially horizontal position, when the second connecting means communicate with each other and the adjusting piston is in the extended position.
the second connecting means communicate with each other and the adjusting piston is in the extended position.
another position is conceivable instead of the horizontal position.
the boom is in a second up position when the first connecting means are in communication and the adjusting piston is in the retracted position.
the connecting means arranged such are that the boom is in a first up position when the first connecting means communicate with each other and the adjusting piston is in the extended position.
the same or substantially the same position of the boom namely reach the first steep position when the second connecting means communicate with each other and the adjusting piston is retracted, as when the first connecting means communicate with each other and the adjusting piston is extended. If the adjustment ranges are adjacent to one another, a comparatively large adjustment range can be covered, wherein the individual adjustment ranges depend on the mounting position of the tie rod.
the first steep position has an inclination angle of approximately 20 ° and the second steep position has an inclination angle of approximately 40 °.
the adjusting cylinder may be pivotally mounted on a support of the crane.
the invention further relates to a crane having a boom adjustment system according to the invention.
Fig. 1 shows a detail of a crane with boom 40, wherein the support 30 extends in the region of the boom foot. It is a fast-erecting crane whose boom 40 consists of at least two parts that are folded together in the transport state and are aligned with each other in the operating state.
the guy rod 10 is secured with its first end portion.
the guy rod 10 is pivotally connected to the adjusting piston of a piston-cylinder unit 20 in connection.
the adjusting piston is received longitudinally displaceably movable in the adjusting cylinder between a retracted and an extended position.
the adjusting cylinder is hinged to the end portion of the support 30.
the guy rod 10 in its end region directed towards the piston-cylinder unit 20, consists of two parallel lugs 50 whose distance from each other is indicated by A.
the distance A is selected so that the adjusting cylinder of the piston-cylinder unit 20 between the flaps 50 is pivotable.
the tabs 50 both have a second slot 70 and a first slot 60.
the elongated holes are spaced from each other in the longitudinal direction of the guy rod 10, wherein the slots 70 are facing the end portion of the guy rod 10 and the slots 60 in contrast have a greater distance from the end portion of the tie rod 10.
the adjusting piston of the piston-cylinder unit 20 also has two holes 90 and 100 spaced apart in the longitudinal direction of the adjusting piston, the holes 100 being spaced further from the end area of the piston than the holes 90, as shown in FIG.
a crane with the system according to the invention for boom adjustment can be operated in several different mounting positions.
a first assembly position results when the tie rod 10 are fixed to the piston-cylinder unit 20 by means of a bolt 80 relative to each other, which are guided by the second holes 70, 90.
This mounting position is shown in Fig. 2 left column.
Steps 1) and 2) show the crane with pivoted second boom part with completely retracted adjusting piston (step 1)), wherein the first boom part is at an inclination angle of about 20 °. If the adjusting piston is fully extended, the angle of inclination is approx. 0 ° (step 2)).
steps 3) and 4) of FIG. 2, left column show the crane in the ready state with unfolded second boom part.
an operating range of the boom results in between 0 ° and 20 °.
Step 3) shows the boom in the 0 ° position.
step 1) show the crane with pivoted second boom part with fully extended adjusting piston (step 1)), wherein the first boom part is at an inclination angle of about 20 °.
step 2) shows the angle of inclination.
steps 3) and 4) according to FIG. 2, right column show the crane in the ready state with unfolded second boom part. As can be seen from step d) results in this second mounting position, an operating range of the boom in between 20 ° and 40 °. Step 3) shows the boom in the 40 ° position.
Fig. 7 shows again a piston-cylinder unit 20 with about 90 mm outside diameter in the assembled state and as a single part. From Fig. 7, an embodiment of the piston-cylinder unit 20 is clear, the piston has the spaced in the adjustment of the piston holes 90, 100, which are each arranged on two mutually parallel tabs of the piston.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Structural Engineering (AREA)
Transportation (AREA)
Jib Cranes (AREA)
Control And Safety Of Cranes (AREA)

EP06013345A 2005-08-01 2006-06-28 Système pour régler une flèche de grue relevable Not-in-force EP1749790B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE202005012050U DE202005012050U1 (de)	2005-08-01	2005-08-01	System zur Verstellung eines Auslegers eines Krans

Publications (3)

Publication Number	Publication Date
EP1749790A2 true EP1749790A2 (fr)	2007-02-07
EP1749790A3 EP1749790A3 (fr)	2008-01-23
EP1749790B1 EP1749790B1 (fr)	2009-09-16

Family

ID=37056488

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06013345A Not-in-force EP1749790B1 (fr)	2005-08-01	2006-06-28	Système pour régler une flèche de grue relevable

Country Status (4)

Country	Link
EP (1)	EP1749790B1 (fr)
AT (1)	ATE443025T1 (fr)
DE (2)	DE202005012050U1 (fr)
ES (1)	ES2330773T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2012048587A1 (fr) *	2010-10-14	2012-04-19	长沙中联重工科技发展股份有限公司	Grue distributrice à tour et sa structure de tige de tension de bras d'équilibrage et procédé de montage pour la structure
CN105060143A (zh) *	2015-07-14	2015-11-18	三一汽车起重机械有限公司	一种起重机臂架机构及起重机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104192738A (zh) *	2014-08-19	2014-12-10	徐工集团工程机械股份有限公司	起重机及其臂架、副臂支撑装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0733584A1 (fr)	1995-03-22	1996-09-25	Potain	Grue à montage automatisé avec flèche repliable sur elle-même

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DD136492A1 (de) *	1978-05-25	1979-07-11	Flecks Hans Helmut	Vorrichtung zum verspannen eines spitzenauslegers am kranausleger
DE9013488U1 (de) *	1990-09-25	1990-12-06	Liebherr-Werk Ehingen Gmbh, 7930 Ehingen	Fahrbarer Kran mit einem teleskopierbaren Ausleger
DE9218870U1 (de) *	1991-10-02	1996-02-15	Potain, Ecully, Rhône	Automatisch zusammenklappbarer Turmdrehkran
DE19908485A1 (de) *	1999-02-26	2000-08-31	Man Wolffkran	Wippkran
FR2839962B1 (fr) *	2002-05-21	2004-10-29	Potain Sa	Grue a tour avec contre-fleche repliable

2005
- 2005-08-01 DE DE202005012050U patent/DE202005012050U1/de not_active Expired - Lifetime
2006
- 2006-06-28 ES ES06013345T patent/ES2330773T3/es active Active
- 2006-06-28 AT AT06013345T patent/ATE443025T1/de active
- 2006-06-28 DE DE502006004841T patent/DE502006004841D1/de active Active
- 2006-06-28 EP EP06013345A patent/EP1749790B1/fr not_active Not-in-force

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0733584A1 (fr)	1995-03-22	1996-09-25	Potain	Grue à montage automatisé avec flèche repliable sur elle-même

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2012048587A1 (fr) *	2010-10-14	2012-04-19	长沙中联重工科技发展股份有限公司	Grue distributrice à tour et sa structure de tige de tension de bras d'équilibrage et procédé de montage pour la structure
CN105060143A (zh) *	2015-07-14	2015-11-18	三一汽车起重机械有限公司	一种起重机臂架机构及起重机
CN105060143B (zh) *	2015-07-14	2017-03-29	三一汽车起重机械有限公司	一种起重机臂架机构及起重机

Also Published As

Publication number	Publication date
DE202005012050U1 (de)	2006-12-14
EP1749790A3 (fr)	2008-01-23
ES2330773T3 (es)	2009-12-15
EP1749790B1 (fr)	2009-09-16
DE502006004841D1 (de)	2009-10-29
ATE443025T1 (de)	2009-10-15

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Publication	Publication Date	Title
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WO2011138012A2 (fr)	2011-11-10	Structure porteuse en treillis
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EP2976287B1 (fr)	2019-03-06	Flèche de grue et grue
EP3756436B1 (fr)	2023-06-07	Relevage avant ainsi que machine de travail doté d'un relevage avant
DE202014004976U1 (de)	2014-08-07	Teleskopausleger und Kran