EP1641703B1 - Mobilkranausleger mit daran angeordnetem autarken hydraulikaggregat - Google Patents

Mobilkranausleger mit daran angeordnetem autarken hydraulikaggregat Download PDF

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Publication number
EP1641703B1
EP1641703B1 EP04764349A EP04764349A EP1641703B1 EP 1641703 B1 EP1641703 B1 EP 1641703B1 EP 04764349 A EP04764349 A EP 04764349A EP 04764349 A EP04764349 A EP 04764349A EP 1641703 B1 EP1641703 B1 EP 1641703B1
Authority
EP
European Patent Office
Prior art keywords
boom
hydraulic
mobile crane
unit
section
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
EP04764349A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1641703A1 (de
Inventor
Michael Irsch
Bernd Backes
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.)
Terex Demag GmbH and Co KG
Original Assignee
Terex Demag GmbH and Co KG
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
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Publication of EP1641703A1 publication Critical patent/EP1641703A1/de
Application granted granted Critical
Publication of EP1641703B1 publication Critical patent/EP1641703B1/de
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
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • 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

Definitions

  • the present invention generally relates to a mobile crane boom for a telescopic or lattice boom having a first rocker arm section and a second boom section kinematically coupled to the first boom section via a first piston cylinder unit.
  • the second boom section is rocked by actuation of the first piston-cylinder unit in the rocker plane.
  • the locking and telescoping device is connected to the superstructure arranged on the hydraulic unit via hydraulic hoses, which are wound on a hose reel.
  • hydraulically tiltable main boom extensions are operated with the centrally located on the superstructure hydraulic unit.
  • the rocking cylinder required for rocking up and down the main boom extension is supplied with power centrally by the hydraulic unit arranged on the uppercarriage via corresponding hydraulic hoses.
  • the hoses are wound on a driven or spring-loaded hose reel, from which they are unwound during the telescoping process.
  • EP 1 081 088 A1 shows a vehicle crane with telescopic boom and auxiliary jib attached thereto.
  • a piston-cylinder unit is present, which is supplied via a standard hydraulic unit, which is arranged on the lower or upper carriage of the vehicle crane, with hydraulic energy.
  • hydraulic lines must extend over the entire length of the telescopic boom.
  • the EP 1 081 088 A1 thus shows a generic mobile crane boom of the type mentioned.
  • DE 34 11 051 A1 discloses an electro-hydraulic on-board crane.
  • This includes a crane boom, which is pivoted at its foot end about a horizontal axis on the tower teetering.
  • a hydraulic cylinder for adjusting the inclination of the boom is articulated on the one hand on the lower part of the crane jib and the other on a turret joint.
  • a hydraulic unit for all drives and in particular for the said hydraulic cylinder is arranged in the lower region of the articulation of the boom. It can be assumed that this hydraulic unit is not designed as a self-sufficient unit, but is supplied via supply lines with electrical or hydraulic energy from the turret ago.
  • a tower crane with a cantilever cantilever is shown in US 3,944,081.
  • This boom is changed by hydraulic cylinders in its inclination.
  • a hydraulic unit is arranged on a fixed, horizontally oriented platform on a vertically aligned during crane operation tower.
  • a mobile crane boom with a self-sufficient hydraulic unit arranged thereon for feeding at least one provided hydraulic load on the crane boom hydraulic energy is provided.
  • a mobile crane boom according to the invention of a telescopic or lattice boom crane has a first boom section and a second boom section kinematically coupled to the first boom section via a first piston-cylinder unit.
  • a self-sufficient hydraulic unit for feeding the first piston-cylinder unit is arranged with hydraulic energy.
  • the second boom section, which is kinematically coupled to the first boom section via the first piston-cylinder unit, is rocked by actuation of the first piston-cylinder unit by means of the hydraulic unit in the rocker plane.
  • the hydraulic unit is above the first third of the boom - measured by the articulation of the boom on the superstructure - arranged.
  • the boom is a telescopic crane jib
  • the collars of the respective telescopic sections prove to be particularly suitable for the arrangement of the hydraulic unit in the region of the exemplary arrangement areas mentioned.
  • hydraulic unit can also be arranged anywhere in the interior of the telescopic sections.
  • a mobile crane boom is provided with a main boom comprising a first boom section and a self-sufficient hydraulic unit, which is suitable for feeding at least one arranged on the crane boom hydraulic consumer with hydraulic energy.
  • the hydraulic unit may be arranged either at the head of the first boom section or the second boom section attachable thereto.
  • the hydraulic consumer arranged either at the head of the first boom section or at a second boom section attachable thereto can be, for example, a first piston-cylinder unit which is suitable, for example, for rocking the second boom section arranged rocking on the first boom section.
  • the invention is therefore based on the idea of not ensuring the supply of hydraulic consumers arranged on the mobile crane boom with the aid of a hydraulic unit arranged centrally on the superstructure of the crane, for example, which makes the hydraulic energy available to the respective hydraulic consumers via hoses, but instead supplies it
  • a decentralized hydraulic power unit which is located in the vicinity of the respective hydraulic consumer and in particular in the upper region of the mobile crane boom or in the region of the articulation of a possibly existing second boom section and thus located in the vicinity of there to be supplied piston-cylinder units ,
  • the section of the mobile crane jib designated here as the first jib section can be, for example, a telescopic main jib of a telescopic crane or the main jib of a mobile crane with a lattice boom, whereby of course the respective first boom section, ie the telescopic main jib or the lattice boom, extends at its end with at least one intermediate piece can be.
  • a second boom section can be arranged, which can be tilted by means of a hydraulic unit arranged on the first or on the second boom section.
  • a hydraulic unit for hydraulic supply of a high-level hydraulic consumer such as a piston-cylinder unit, in the vicinity of the same, eliminates the previously considered problematic hydraulic supply lines, usually between the arranged at a higher level hydraulic consumers and the example centrally on the superstructure of Mobile crane arranged hydraulic power unit will be required.
  • the hydraulic unit itself may be, for example, a hydraulic pump operated by an internal combustion engine, such as a diesel engine, for example, an electric motor could be used to operate the hydraulic pump, which in turn would require a cable connection to the superstructure.
  • an internal combustion engine such as a diesel engine
  • an electric motor could be used to operate the hydraulic pump, which in turn would require a cable connection to the superstructure.
  • the hydraulic unit a Verbolzung the Main boom extension with the main boom.
  • Verbolzungszylinder that can be activated or deactivated by means of the hydraulic unit, so as to solve the Verbolzung between the main boom extension and main boom or produce.
  • the hydraulic power pack is disposed on the second boom section, such as a main jib extension boom.
  • the arrangement of the hydraulic unit on the second boom section turns out to be, if one or more intermediate pieces are connected between the head of the main boom and a main boom extension, thereby advantageous that even at the highest point of the first boom section, in this case at the head of the last intermediate piece ends, always a self-sufficient energy supply is available.
  • the hydraulic unit must therefore not only be removed from the head of the main boom and then re-mounted on one of the intermediate pieces, but is always located by the arrangement of the main boom extension at the desired position.
  • a hydraulically actuatable main boom extension may be attached to the main boom and the stand-alone hydraulic power unit is disposed thereon.
  • This main boom extension with hydraulic unit disposed thereon proves to be advantageous in that by the main boom extension has its own hydraulic supply, no additional power supply lines from the uppercarriage of a crane to the main boom extension must be performed.
  • the saving of these usually to be provided Supply lines proves to be particularly advantageous if the main boom extension is not placed directly on the main boom of a crane, but when one or more intermediate pieces are connected between the main boom extension and main boom.
  • the normally additionally provided in the region of the intermediate pieces hydraulic lines can be omitted here, which makes a faster setup of the crane possible.
  • a mobile crane is shown, wherein the boom 1, 2 of the mobile crane is shown in two different positions: a first stored position I and a second, with the aid of a piston-cylinder unit 26 erected position II.
  • the main boom 1 consists of a base box 10 and a further six telescopic shots 5 to 9 telescoping and telescoping in it.
  • the main boom formed from the base box 10 and the telescopic sections 4 to 9 is also used as the first boom section 1
  • the first boom section 1 may also be the main boom of a lattice boom crane, as will be explained later.
  • a main boom extension 2 is articulated on the head of the first boom section.
  • the main boom extension 2 consists of a first box top 14 and a lattice boom 15 which is hingedly connected at the foot to the head of the first boom section 1.
  • the main boom extension 2 consisting of the box top 14 and the lattice boom 15, is also referred to as the second boom section 2.
  • the second boom section 2 may also consist of the lattice boom 15, for example.
  • a lattice mast tip can be used.
  • the second boom section 2 is pivotable about the pivot point A in the rocker plane.
  • this is guided by the superstructure 11 of the mobile crane via a pulley 17 which can be folded up and down hydraulically to the tip of the second boom section 2.
  • this pulley 17 can be dispensed with, since in the extended position the rope 18 from the superstructure 11 to the top of the second boom section straight, without requiring deflection points runs. In the extended position of the second boom section 2, therefore, the pulley 17 can be applied to the boom 1, 2.
  • FIG. 2 shows in detail the detail in FIG. 1 labeled "Z" in the region of the articulation of the second boom section 2 at the head of the first boom section.
  • the lattice boom 15 of the second boom section 2 at the head of the first boom section at the point "A" articulated with a hydraulically actuated Verbolzungszylinder 28 a.
  • Verbolzungszylinder 28 a a hydraulically actuated Verbolzungszylinder 28 a.
  • the lattice boom 15 is connected at a second location to the head of the first boom section that is symmetrical to the rocker plane of the boom in the depth of the plane of the drawing.
  • the two Verbolzonne can thus be located for example in the extension of the two lower straps at the foot of the second boom section.
  • the second boom section 2 By this Verbolzung the second boom section 2 about the axis A, which is defined by these two Verbolzungsstellen, pivotable.
  • both boom sections 1, 2 In order to firmly connect the second boom section 2 to the first boom section 1, both boom sections 1, 2 can also be bolted together at the point C with a hydraulically actuated bolting cylinder 28b.
  • the hydraulic unit 19 is arranged according to the present invention.
  • the hydraulic unit 19 can of course also be arranged on the first boom section 1 and in this case in particular on the head of the innermost telescopic section.
  • Another space-saving possibility for the arrangement of the hydraulic unit 19 may, for example, be to place the unit 19 in the innermost telescopic section 4.
  • the hydraulic unit 19 is rotatably mounted about the axis "B".
  • the hydraulic unit 19 could for example be a diesel engine with associated hydraulic pump, which of course could be used instead of the diesel engine and an electric motor.
  • the hydraulic unit 19 is connected via a hydraulic line 22 with two piston-cylinder units 16, wherein due to the view of the arrangement shown here, only one piston-cylinder unit 16 is visible.
  • the second hydraulic line which is required for the movement of the piston-cylinder unit in the opposite direction, is also not shown here.
  • the head of the first boom section 1 is kinematically coupled to the foot of the second boom section 2 and the foot of the lattice boom 15 via the two piston-cylinder units 16.
  • the cylinder of the respective piston-cylinder unit 16 is hinged to the top of the lattice boom 15 and the respective associated cylinder at the head of the first boom section 1.
  • a pulley 17 is arranged on the upper side of the lattice boom 15, which via a further piston-cylinder unit 21 by actuation of the Hydraulic units 19 can be applied to the top of the lattice boom 15.
  • the hydraulic unit 19 primarily serves to actuate the first piston-cylinder units 16 in order to luff the second boom section 2 by the extension of the piston-cylinder units 16, as shown in FIG. Furthermore, with the aid of the hydraulic unit 19 via the hydraulic line 23, the second piston-cylinder unit 21 can be actuated in order to apply the foldable cable pulley 17 to the second boom section 2 or to fold it away. Again, the sake of clarity, the second hydraulic line, which is required for movement of the piston-cylinder unit in the opposite direction, not shown.
  • the first boom section 1 is connected to the second boom section 2 via the hydraulically actuable bolting cylinders 28a, 28b.
  • the supply of the bolting cylinders 28a, 28b also takes place here with the hydraulic unit 19, which provides the required hydraulic energy to the respective bolting cylinders via respective hydraulic hoses 29a to 29d.
  • the second boom section 2 can of course be folded out of the rocker plane.
  • FIG. 3 the detail "Z" is shown again, wherein the second boom section 2, however, was tapped using the hydraulic unit 19 and the associated two piston-cylinder units 16.
  • the piston of the first piston-cylinder unit 16 is articulated on the head of the first boom section 1 and the associated cylinder is articulated on the foot region of the second boom section 2, whereby, of course, the reverse arrangement is possible.
  • the hydraulic unit 19 can rotate around the axis B by wobbling of the second boom section 2, which is indicated by the double arrow.
  • FIG. 3 the detail "Z" is shown again, wherein the second boom section 2, however, was tapped using the hydraulic unit 19 and the associated two piston-cylinder units 16.
  • the piston of the first piston-cylinder unit 16 is articulated on the head of the first boom section 1 and the associated cylinder is articulated on the foot region of the second boom section 2, whereby, of course, the reverse arrangement is possible.
  • the hydraulic unit 19 can rotate around the axis B by wobbling of the second boom section 2, which is indicated by the double arrow.
  • a mobile crane is shown, which corresponds substantially to the mobile crane shown in Fig. 1, but at the top of the innermost telescopic section 4, two inter-bolted intermediate pieces 24, 25 are attached via a bolt connection.
  • the intermediate pieces 24, 25 are two prepared in lattice construction jib parts, but of course can be made in box construction.
  • a main boom extension 2 is articulated analogously to FIG.
  • the main boom extension 2 also consists here of a first box top 14 and a lattice boom 15, which is pivotally connected at the foot to the head of the first boom section 1, which ends at the head of the second intermediate piece 25.
  • a hydraulic unit 19 is arranged, which has a first piston-cylinder unit 16, which is arranged between the head of the first boom section 1 and the foot of the second boom section 2, with hydraulic Energy feeds.
  • the second boom section 2 can also be pivoted about axis A by actuation of the hydraulic unit 19.
  • the hydraulic unit is shown as arranged on the second boom section, but here also the hydraulic unit 19 of course at the end of the first boom section 2, so for example at the head of the second intermediate piece 25 are arranged.
  • the arrangement of the hydraulic unit 19 on the second boom section 2 proves to be advantageous since the set-up effort can be reduced in order to convert the mobile crane shown in FIG. 1 into the one shown in FIG. 2 by the installation of two intermediate pieces 24, 25.
  • the hydraulic unit 19 is arranged on the second boom section, only the second boom section including the Kobenzylinderussi 16 has to be removed, the intermediate pieces 24, 25 are attached and then the second boom section including the Kobenzylinderussi 16 are articulated against the said conversion.
  • a separate dismantling of the hydraulic unit 19 from the head of the innermost telescopic section 4 and anschl legislative re-attachment to the head of the second intermediate piece 25 can thus be omitted.
  • FIG. 5a to 5d different positions of a crawler crane with a two-part lattice boom 1, 2 are shown, the two boom sections 1, 2 are coupled kinematically with the use of a hydraulic unit 19 and a piston-cylinder unit 16.
  • Fig. 5a the entire two-piece lattice boom of the crawler crane is in one on the ground stored position.
  • Fig. 5c set up by actuation of the piston-cylinder unit by the hydraulic unit 19, first, the second boom section 2.
  • the second boom section 2 is articulated to the first boom section 1 in an axis A at the top flange of the two boom sections 1, 2 in an articulated manner.
  • a first piston-cylinder unit 16 is arranged, whose piston is articulated on the first boom section and its associated cylinder on the second boom section.
  • a hydraulic unit 19 hinged which is suitable for feeding the first piston-cylinder unit 16 with hydraulic energy.
  • the hydraulic unit 19 is shown arranged on the first boom section, but the hydraulic unit 19 can of course also be arranged at the foot of the second boom section. In the present case, this would even prove to be more favorable since the length of the hydraulic hose 22 for feeding the piston-cylinder unit 16 of the piston-cylinder unit 16 could thereby be made shorter.
  • the second boom section 2 has been moved, with the aid of the hydraulic unit 19 and the piston-cylinder unit 16, from the position shown in FIG. 5a, placed on the ground, into the almost vertical position shown here.
  • the first boom section 1 erected on the neck rope 27.
  • further actuation of the hydraulic unit 19 and thus of the piston-cylinder unit 16 releases the second boom section 2 relative to the first boom section 1, so that in the end position the head of the first boom section 1 can ultimately be bolted to the foot of the second boom section 2.
  • the hydraulic unit 19 are used to actuate the corresponding Verbolzungszylinder for Verbolzung the two boom sections 1, 2.
  • FIG. 6 shows by way of example a possible hydraulic system, which schematically represents the supply of the hydraulic consumers 16, 19, 28a to 28d.
  • the hydraulic system shown has a neutral circulation, which means that the hydraulic unit 19 in a non-actuated position of the valves 30 and 34 promotes the hydraulic fluid almost without pressure to the tank 33.
  • the connection to the tank 33 is interrupted so that, depending on the switching position of the valves 30, 34, the bottom or rod side of the cylinder of the hydraulic consumers 16, 21 or 28a-28d is charged with hydraulic fluid ,
  • the resulting pressure depends on the load on the respective consumers 16, 21 or 28.
  • only a pressure which corresponds to the pressure set at the pressure limiting valve 31 can be set to a maximum.
  • the hydraulic consumers 16, 21 are equipped with load-holding valves 32 which serve to secure the position hydraulic consumers 16, 21 even when the system is switched off or in the event of line breakage.
  • the load-holding valves 32 are hydraulically unlocked, which can be done for example by direct control via the valve 34 or by a separate control oil line 35.
  • Fig. 6 only one possible hydraulic system is shown, wherein for convenience, the usual comfort and safety devices, such as variable throttles or filtering, are not shown, however, the skilled person knows how to realize accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Jib Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP04764349A 2003-08-22 2004-08-20 Mobilkranausleger mit daran angeordnetem autarken hydraulikaggregat Expired - Lifetime EP1641703B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49710703P 2003-08-22 2003-08-22
PCT/EP2004/009367 WO2005021415A1 (de) 2003-08-22 2004-08-20 Mobilkranausleger mit daran angeordnetem autarken hydraulikaggregat

Publications (2)

Publication Number Publication Date
EP1641703A1 EP1641703A1 (de) 2006-04-05
EP1641703B1 true EP1641703B1 (de) 2007-01-24

Family

ID=34272536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764349A Expired - Lifetime EP1641703B1 (de) 2003-08-22 2004-08-20 Mobilkranausleger mit daran angeordnetem autarken hydraulikaggregat

Country Status (7)

Country Link
US (1) US7258242B2 (ja)
EP (1) EP1641703B1 (ja)
JP (1) JP2007503369A (ja)
CN (1) CN1839090A (ja)
AT (1) ATE352513T1 (ja)
DE (2) DE502004002790D1 (ja)
WO (1) WO2005021415A1 (ja)

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US6021825A (en) * 1996-09-06 2000-02-08 Bowling; John M. Stump cutter apparatus for quick connection to an excavator or other prime mover
JPH11286395A (ja) 1998-03-31 1999-10-19 Tadano Ltd 移動式クレーンに装備される高所作業台装置
JP3877901B2 (ja) * 1999-03-31 2007-02-07 コベルコ建機株式会社 ショベル
FR2792627B1 (fr) * 1999-04-23 2001-06-01 Potain Sa Grue avec fleche a fonctions multiples
BE1012862A5 (nl) 1999-08-31 2001-04-03 Lille Allebroer Leo Alix De Inrichting voor het verplaatsen van lasten met behulp van een mobiel platform.
DE19948831B4 (de) * 1999-10-06 2005-06-30 Terex-Demag Gmbh & Co. Kg Fahrzeugkran
US6474922B2 (en) * 2000-05-10 2002-11-05 Del Mar Avionics Remote operation auxiliary hoist control and precision load positioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2762438A1 (de) 2013-02-05 2014-08-06 Terex Cranes Germany GmbH Verfahren zur Beeinflussung einer auf einen Seiltrieb wirkenden Seilwindenkraft und Vorrichtung zur Durchführung eines derartigen Verfahrens
DE102013201860A1 (de) 2013-02-05 2014-08-07 Terex Cranes Germany Gmbh Verfahren zur Beeinflussung einer auf einen Seiltrieb wirkenden Seilwindenkraft und Vorrichtung zur Durchführung eines derartigen Verfahrens

Also Published As

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EP1641703A1 (de) 2006-04-05
DE502004002790D1 (de) 2007-03-15
CN1839090A (zh) 2006-09-27
JP2007503369A (ja) 2007-02-22
ATE352513T1 (de) 2007-02-15
US7258242B2 (en) 2007-08-21
US20050098524A1 (en) 2005-05-12
WO2005021415A1 (de) 2005-03-10
DE202004020760U1 (de) 2006-01-26

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