EP1072554A1 - Grue à flèche téléscopique - Google Patents

Grue à flèche téléscopique Download PDF

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Publication number
EP1072554A1
EP1072554A1 EP00115005A EP00115005A EP1072554A1 EP 1072554 A1 EP1072554 A1 EP 1072554A1 EP 00115005 A EP00115005 A EP 00115005A EP 00115005 A EP00115005 A EP 00115005A EP 1072554 A1 EP1072554 A1 EP 1072554A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
boom
piston rod
tube
coupling
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
EP00115005A
Other languages
German (de)
English (en)
Other versions
EP1072554B1 (fr
Inventor
Gerd BRÄCKELMANN
Hans-Dieter Willim
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 Ehingen GmbH
Original Assignee
Liebherr Werk Ehingen 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
Priority claimed from DE20003355U external-priority patent/DE20003355U1/de
Application filed by Liebherr Werk Ehingen GmbH filed Critical Liebherr Werk Ehingen GmbH
Publication of EP1072554A1 publication Critical patent/EP1072554A1/fr
Application granted granted Critical
Publication of EP1072554B1 publication Critical patent/EP1072554B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder

Definitions

  • the invention relates to a crane with a telescopic boom, the one Basic boom with boom linkage telescopic shots in their respective extended and retracted positions are locked by locking bolts and after releasing the locking bolt connections with a one-step hydraulic piston-cylinder unit, which ends at the boom link is attached, thereby each can be extended and retracted by two strokes that each shot to be retracted or retracted once with the inner and once with the outer End portion of the movable part of the piston-cylinder unit is coupled.
  • a telescopic boom of this type in which either the piston rod or cylinder of the piston cylinder unit on the boom link is articulated and the respective movable part of the piston-cylinder unit, namely the cylinder and the piston rod on hers Provide inner and outer ends with a locking and locking unit are that can be coupled with recesses of the telescopic shots.
  • the locking and locking unit is located on the boom link cylinder attached to the piston rod, this is at its front End with a guide and traction device running parallel to the cylinder provided that a security and locking unit at its inner end wearing.
  • the known telescopic boom has a relatively complex Construction on that at the inner and outer ends of the cylinder, respectively or at the outer end of the piston rod and at the inner end of a this connected guiding and pulling device securing and locking units are arranged, which must be duplicated.
  • the object of the invention is therefore to provide a crane with a telescopic boom to create specified type, which has a simpler structure.
  • this object is achieved according to the invention solved that with the piston rod attached to the boom link on the cylinder a sliding ring or a sliding sleeve with a coupling device for coupling the shots, the one or both with the inner as well as the outer end region of the cylinder can be locked.
  • the sliding coupling device can consist of two opposite one another extendable and retractable pistons exist in corresponding recesses or insert holes in the shots and are known from EP 0 661 234 A1 are.
  • the bolt connections that lock the individual shots together can also be designed as described in EP 0 661 234 A1 is.
  • the sliding ring or the bushing, which is the coupling device also carries with a device for unlocking the individual shots locking bolt connections are provided, as is also described in EP 0 661 234 A1.
  • the telescopic boom according to the invention enables the individual shots in extend and retract two strokes so that piston cylinder units with lower weight can be used, which is also less sensitive to kinking exhibit.
  • the sliding ring on the cylinder or the sliding bush which can only partially encompass the cylinder, is in the end positions locked to the cylinder by known locking means.
  • the sliding ring in a known manner with supply lines is provided.
  • the locking unit can also be supplied by an additional hydraulic cylinder take place at the same time the displacement of the locking unit serves on the cylinder jacket tube.
  • the object according to the invention solved that when attached to the boom linkage cylinder with the outer End of the piston rod a tube concentric with the cylinder or to this parallel guides are attached, which surround the cylinder between them, and that on the tube or the struts a sliding ring or a sliding piece are guided with a coupling device which with the inner and outer End regions of the tube or the guides can be coupled.
  • a coupling device which with the inner and outer End regions of the tube or the guides can be coupled.
  • the ring or the sliding piece according to the first embodiment again with Provide devices for releasing the locking bolt connections.
  • the ring or the sliding piece are provided with an energy supply, which can consist of carried lines.
  • the oil supply for the locking unit and the displacement unit can also by means of telescopic tubes inside the cylinder or via hose lines respectively.
  • the cylindrical jacket tube or that enclosing it are expedient Tube or the guides at their outer and inner end portions with coils, Provide projections or depressions with which the rings, bushings or sliding pieces e.g. can be releasably locked by claws or bolts.
  • the guides can be provided with coupling devices with which the Sliding piece is releasably connectable by mating coupling devices.
  • the piston rod 1 is the hydraulic one Piston cylinder unit 1, 2 on the boom link 3 of the basic boom 4 attached, which forms the outer shot of the telescopic boom.
  • the socket 9 is in the manner known from EP 0 661 234 A1 on opposite Provided on the sides with hydraulically movable locking bolts the socket 9 each with the inner end of the shot to be pushed out can be locked so that the shot to be moved can be moved in two strokes can extend or retract, the socket once with the inner and once with the outer end of the cylinder is locked.
  • the socket 9 is also with a EP, for example 0 661 234 A1 known device for pulling the locking bolts 7, 8, those for coupling to the device with coupling pieces, for example Plates, provided and towards their extended locking position are loaded by springs.
  • a EP for example 0 661 234 A1 known device for pulling the locking bolts 7, 8, those for coupling to the device with coupling pieces, for example Plates, provided and towards their extended locking position are loaded by springs.
  • the socket 9 is in a manner not shown with lines for power supply provided, which on the one hand can lock and release the claws 10 and on the other hand the locking bolts for coupling the shots to the socket 9 and the device for pulling the bolts 7, 8 with energy, for example hydraulic oil, supply.
  • the swiveling claws can be loaded by springs, so that they automatically move into their coupling positions via suitable slopes snap.
  • the shot 5 is then in two strokes the boom 4 extended in a corresponding manner, the first extension stroke 6 can be seen.
  • the invention can also be achieved in that the apparent from FIGS. 7 to 10, the cylinder 2 with the boom link 3 is connected.
  • the piston rod 1 carries at its outer end Transverse yoke or plate 20, to which a cage 22 is connected, the inner end is slidably guided on the cylinder 2 via a sliding piece.
  • This Cage 20 can also consist of a tube or side struts that are on the cylinder 2 are guided.
  • On the cage 22 is a socket or a sliding piece 23 slidably guided like the socket 9 after the Embodiment of FIGS.
  • the individual bolts are mechanical mutually locked so that the shots either with each other or the Shot to be pushed out or drawn in with the movable part of the piston-cylinder unit is locked.
  • From the telescopic boom according to the invention according to FIGS. 11 to 14 are from the boom articulation piece 30 four telescopic sections 31 to 34 telescopic.
  • the piston rod 35 of the telescopic cylinder 36 is with the foot 37 of the Boom articulation shot 30 firmly connected.
  • the telescopic cylinder 36 is with it End 38 superior lateral guides 39 provided in the outer End pieces of the articulated shot and the telescoped shots in the usual Are guided and prevent rotation of the telescopic cylinder.
  • On a transverse yoke 40 connecting the lateral guides 39 is an auxiliary cylinder 41 attached, the piston rod 42, the sleeve 43 on the cylinder jacket tube of the telescopic cylinder 36 moves between the end positions, locked and solves again.
  • the socket 43 carries the side locking bolts for coupling to the individual shots to be pushed out and retracted. Continue wearing the socket 43 is a coupling piece for coupling to the locking bolt 44 to 47 to lock the individual telescopic shots with each other and with the Cantilever boom.
  • the auxiliary cylinder 41 via its piston rod 42 has the coupling device provided bushing 43 moved inwards, in which the lateral Locking bolts are coupled with the inner shot 34 to be pushed out.
  • the locking bolt 47 After pulling and thus unlocking the locking bolt 47 can the inner shot over the telescopic cylinder 36 into its one shown in FIG move to the semi-extended position.
  • the locking bolt 47 bolted to a central receiving bore of the shot 46, so that after the release of the lateral locking bolts used to move the telescopic shots the cylinder 36 is moved into its position shown in FIG. 13 can be. From this position, the inner telescopic section 34 is then by extending the telescopic cylinder again into the one shown in FIG. 14 move to extended position.
  • FIG. 15 A schematic sectional view of the telescopic cylinder 36, with the Foot piece of the boom linkage firmly connected piston rod and auxiliary cylinder 41 connected to the telescopic cylinder 36 can be seen in FIG. 15.
  • the telescopic cylinder 36 is concentric with its center line with two Pipes 50, 51 provided, of which the tube 51, the tube 50 to form a Annulus 52 surrounds. Between the tube 51 and the cylinder jacket tube 53 of the Telescopic cylinder 36 an annular space 54 is formed, in which the piston 55 is guided is.
  • the piston rod 35 and the piston 55 are provided with bores 56, 57, through which the annular space 54 is supplied with pressure oil for extending the piston 55.
  • the auxiliary cylinder 41 is on the one hand through the bores 60 of the piston rod, the inner tube 50 and the Hole 61 in the bottom of the telescopic cylinder and on the other hand via the hole 62 the piston rod 65 and the annular space 52 between the tubes 50 and 51 and the bore 63 in the bottom of the telescopic cylinder 36 supplied pressure oil.
  • the piston rod 42 of the auxiliary cylinder 41 is also provided with bores 64 to 66, so that in the sliding bushing and thus the coupling and locking devices oil can be supplied to actuate them.
  • the oil supply can be provided by a microprocessor, preferably Control device take place so that the coupling of the individual shots as well as pulling and releasing the individual interlocking the shots In any case, bolts are made in the intended order.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)
  • Actuator (AREA)
EP00115005A 1999-07-30 2000-07-21 Grue à flèche téléscopique Expired - Lifetime EP1072554B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29913333 1999-07-30
DE29913333U 1999-07-30
DE20003355U DE20003355U1 (de) 1999-07-30 2000-02-24 Kran mit einem Teleskopausleger
DE20003355U 2000-02-24

Publications (2)

Publication Number Publication Date
EP1072554A1 true EP1072554A1 (fr) 2001-01-31
EP1072554B1 EP1072554B1 (fr) 2004-03-17

Family

ID=26056097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115005A Expired - Lifetime EP1072554B1 (fr) 1999-07-30 2000-07-21 Grue à flèche téléscopique

Country Status (3)

Country Link
US (1) US6527131B1 (fr)
EP (1) EP1072554B1 (fr)
JP (1) JP5044828B2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10142847C1 (de) * 2001-08-29 2002-11-21 Demag Mobile Cranes Gmbh & Co Teleskopausleger
EP1321427A1 (fr) * 2001-12-21 2003-06-25 Demag Mobile Cranes GmbH & Co. KG Flèche télescopique
EP1321426A1 (fr) * 2001-12-21 2003-06-25 Demag Mobile Cranes GmbH & Co. KG Flèche télescopique
CN103613007A (zh) * 2013-12-18 2014-03-05 三一汽车起重机械有限公司 起重臂插销结构、起重臂和起重机
US10077173B2 (en) 2013-08-27 2018-09-18 Xuzhou Heavy Machinery Co., Ltd. Single-cylinder plug pin type telescopic arm, telescopic method thereof and crane having telescopic arm
CN111039199A (zh) * 2019-12-30 2020-04-21 徐州重型机械有限公司 单缸插销式伸缩臂和起重机

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7341157B2 (en) * 2004-11-29 2008-03-11 Slobogean Methody W Enclosed-reeving, live-line boom
JP5024821B2 (ja) * 2007-04-27 2012-09-12 株式会社加藤製作所 クレーンのブーム伸縮装置
US7849641B2 (en) * 2007-07-12 2010-12-14 Thor Global Enterprises Ltd. Undercarriage for a telescopic frame
US20110126700A1 (en) * 2007-07-12 2011-06-02 Johannsen Thorkil J Undercarriage for a telescopic frame
DE102009006292B4 (de) * 2009-01-27 2015-03-26 Manitowoc Crane Group France Sas Verriegelungssystem für Teleskopkranausleger mit verschiebbarer Verriegelungseinheit
DE102009009944B4 (de) * 2009-02-20 2011-02-24 Terex-Demag Gmbh Sicherungs- und Verbolzungseinheit
DE202010014105U1 (de) * 2010-10-08 2012-01-10 Liebherr-Werk Ehingen Gmbh Auslegerelement, Teleskopausleger, Verbolzsystem sowie Baufahrzeug
DE202010014103U1 (de) * 2010-10-08 2012-01-10 Liebherr-Werk Ehingen Gmbh Auslegerelement, Teleskopausleger sowie Baufahrzeug
EP2465809B1 (fr) 2010-12-17 2014-02-12 Manitowoc Crane Group France SAS Système de télescopage pour flèche et flèche auxiliaire
CN102536948B (zh) * 2012-01-10 2015-01-21 徐州重型机械有限公司 一种油缸及具有该油缸的吊臂伸缩系统和起重机
CN103058077B (zh) * 2012-12-27 2015-10-28 三一重工股份有限公司 起重机及其起重臂
DE102013011173B4 (de) * 2013-07-04 2019-05-23 Liebherr-Werk Ehingen Gmbh Verfahren zur Montage eines Krans sowie Anlenkschuss, Teleskopausleger und Kran
WO2016099342A1 (fr) * 2014-12-19 2016-06-23 Volvo Truck Corporation Arrangement de transfert de fluide entre le châssis et la cabine dans un véhicule
US10183847B2 (en) * 2015-03-31 2019-01-22 Manitowoc Crane Companies, Llc Cylinder retention device
US10533585B2 (en) 2015-11-16 2020-01-14 Saab Ab Telescopic device and method for operating a telescopic device
WO2017151021A1 (fr) * 2016-02-29 2017-09-08 Saab Ab Agencement d'actionneur de fluide comprenant un élément de levage
EP3448795B1 (fr) * 2016-04-25 2023-07-26 Manitowoc Crane Companies, LLC Grue dotée d'un mécanisme de verrouillage rotatif
CN108716496A (zh) * 2018-07-17 2018-10-30 泸州市龙马潭区长江液压件有限公司 两级液压油缸
US20220135209A1 (en) * 2019-02-05 2022-05-05 Saab Ab An actuator apparatus comprising a positioning actuator
CN111017750A (zh) * 2019-12-09 2020-04-17 三一汽车起重机械有限公司 单缸插销式吊臂、吊臂操作方法和起重机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661234A1 (fr) * 1993-12-28 1995-07-05 Liebherr-Werk Ehingen GmbH Grue mobile avec un flèche télescopique
DE19641193A1 (de) * 1996-09-24 1998-03-26 Mannesmann Ag Teleskopausleger, insbesondere für stationäre oder fahrbare Krane
DE19824671A1 (de) * 1997-05-28 1998-12-03 Mannesmann Ag Kran mit einem Teleskopausleger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229389Y1 (fr) * 1973-02-27 1977-07-05
DE19631547B4 (de) * 1996-07-24 2004-05-06 Terex-Demag Gmbh & Co. Kg Teleskopausleger, insbesondere für stationäre oder fahrbare Krane
DE29824453U1 (de) * 1997-05-28 2001-03-01 Mannesmann Ag Kran mit einem Teleskopausleger
DE19811813B4 (de) * 1998-03-18 2005-11-24 Grove U.S. LLC (n.d.Ges.d.Staates Delaware) Seitliche Auslegerverriegelung
DE19826924A1 (de) * 1998-06-17 1999-12-23 Grove Us Llc Auslegerfixierung mit Einstellzylinder
DE10007773B4 (de) * 1999-04-29 2005-07-21 Terex-Demag Gmbh & Co. Kg Kran mit einem Teleskopausleger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661234A1 (fr) * 1993-12-28 1995-07-05 Liebherr-Werk Ehingen GmbH Grue mobile avec un flèche télescopique
DE19641193A1 (de) * 1996-09-24 1998-03-26 Mannesmann Ag Teleskopausleger, insbesondere für stationäre oder fahrbare Krane
DE19824671A1 (de) * 1997-05-28 1998-12-03 Mannesmann Ag Kran mit einem Teleskopausleger

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10142847C1 (de) * 2001-08-29 2002-11-21 Demag Mobile Cranes Gmbh & Co Teleskopausleger
EP1293471A1 (fr) * 2001-08-29 2003-03-19 Demag Mobile Cranes GmbH & Co. KG Flèche télescopique
EP1321427A1 (fr) * 2001-12-21 2003-06-25 Demag Mobile Cranes GmbH & Co. KG Flèche télescopique
EP1321426A1 (fr) * 2001-12-21 2003-06-25 Demag Mobile Cranes GmbH & Co. KG Flèche télescopique
DE10164600C2 (de) * 2001-12-21 2003-12-11 Terex Demag Gmbh & Co Kg Teleskopausleger
DE10164601C2 (de) * 2001-12-21 2003-12-18 Terex Demag Gmbh & Co Kg Teleskopausleger
US10077173B2 (en) 2013-08-27 2018-09-18 Xuzhou Heavy Machinery Co., Ltd. Single-cylinder plug pin type telescopic arm, telescopic method thereof and crane having telescopic arm
CN103613007A (zh) * 2013-12-18 2014-03-05 三一汽车起重机械有限公司 起重臂插销结构、起重臂和起重机
CN103613007B (zh) * 2013-12-18 2015-07-08 三一汽车起重机械有限公司 起重臂插销结构、起重臂和起重机
CN111039199A (zh) * 2019-12-30 2020-04-21 徐州重型机械有限公司 单缸插销式伸缩臂和起重机

Also Published As

Publication number Publication date
EP1072554B1 (fr) 2004-03-17
US6527131B1 (en) 2003-03-04
JP5044828B2 (ja) 2012-10-10
JP2001080883A (ja) 2001-03-27

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