EP2377804B1 - Grue mobile, notamment grue de construction mobile - Google Patents

Grue mobile, notamment grue de construction mobile Download PDF

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Publication number
EP2377804B1
EP2377804B1 EP20110002601 EP11002601A EP2377804B1 EP 2377804 B1 EP2377804 B1 EP 2377804B1 EP 20110002601 EP20110002601 EP 20110002601 EP 11002601 A EP11002601 A EP 11002601A EP 2377804 B1 EP2377804 B1 EP 2377804B1
Authority
EP
European Patent Office
Prior art keywords
lifting
lowering device
ballast
uppercarriage
mobile crane
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.)
Active
Application number
EP20110002601
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German (de)
English (en)
Other versions
EP2377804A1 (fr
Inventor
Martin Aßfalg
Norbert Stanger
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.)
Filing date
Publication date
Application filed by Liebherr Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
Publication of EP2377804A1 publication Critical patent/EP2377804A1/fr
Application granted granted Critical
Publication of EP2377804B1 publication Critical patent/EP2377804B1/fr
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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
    • 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
    • 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
    • B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes

Definitions

  • the present invention relates to a mobile crane, in particular a mobile construction crane, with an undercarriage with chassis and a rotatable about a vertical axis of rotation superstructure, wherein the undercarriage lifting and / or lowering device is arranged.
  • a mobile crane according to the preamble of claim 1 is known from US 3,822,791 known.
  • ballast element can be provided in such mobile cranes, which can be arranged on demand on the superstructure. Due to the permissible axle loads, this ballast element may not remain on the device during road trips in many markets. The ballast element is therefore usually transported during road travel on a separate transport vehicle and placed only at the place of installation on the superstructure.
  • Object of the present invention is to provide a mobile crane available, which allows easier installation of the ballast element, which is advantageously possible without the use of an additional lifting device.
  • this object is achieved by a mobile crane according to claim 1.
  • the mobile crane according to the invention comprises an undercarriage with chassis and a rotatable about a vertical axis of rotation superstructure, wherein the undercarriage lifting and / or lowering device is arranged and the upper carriage at least one ballast element can be arranged, which is transportable during road travel on a separate transport vehicle.
  • the mobile crane according to the invention is a mobile construction crane.
  • the ballast element can be mounted on the lifting and / or lowering device and mounted using the lifting and / or lowering device on the superstructure.
  • the ballast element can thus be mounted on the arranged on the undercarriage lifting and / or lowering device.
  • an existing anyway on the mobile crane lifting and / or lowering device can now also be used for mounting the ballast element.
  • ballast element on the superstructure by lowering the lifting and / or lowering device can be attached.
  • the ballast element is fastened to the superstructure so that it forms the rear end of the upper carriage in its mounted position.
  • the length of the rear of the superstructure is increased by attaching the ballast element.
  • the ballast element can advantageously be arranged on the mobile crane itself on the lifting and / or lowering device, so that no further lifting device is needed.
  • an adapter is arranged on the lifting and / or lowering device, via which the ballast element on the lifting and / or lowering device is receivable.
  • an already existing lifting and / or lowering device for receiving the ballast element can thus be equipped via this adapter.
  • the ballast element is thereby held positively on the adapter.
  • the ballast element can be hooked to the adapter.
  • the adapter comprises a support arm, which is pivotally mounted on the lifting and / or lowering device and can be folded from a transport position into a working position.
  • the ballast element is arranged on the lifting and / or lowering device by the mobile crane itself. Then the superstructure is rotated by 180 °, so that the ballast element can now be attached by lowering the lifting and / or lowering device at the rear of the superstructure.
  • the ballast element is attachable to the rear of the superstructure, in particular by attaching to a base ballast, which remains firmly on the superstructure.
  • the lifting and / or lowering device is arranged at the rear of the undercarriage.
  • the lifting and / or lowering device is mounted on the rear rear wall of the undercarriage.
  • the lifting and / or lowering device can serve as underride protection for the stored on the superstructure crane parts when driving on the road, which protrude beyond the rear of the undercarriage to the rear.
  • the lifting and / or lowering device at its rear end on a collision protection can serve as underride protection for the stored on the superstructure crane parts when driving on the road, which protrude beyond the rear of the undercarriage to the rear.
  • the lifting and / or lowering device may have a loading surface on which objects can be stored.
  • the lifting and / or lowering device is a device carrier with which devices can be transported on the mobile crane.
  • the lifting and / or lowering device can be lowered to the ground in such a way that devices can be loaded onto the loading surface, and then raised for transport by a certain distance.
  • the lifting and / or lowering device in this case has a maximum stroke between 10 cm and 1.50 m, more advantageously between 30 cm and 1 m, further advantageously between 50 cm and 60 cm.
  • the lifting and / or lowering device can have an arbitrarily designed lifting drive.
  • at least one hydraulic cylinder can be used as a lifting drive.
  • the raisable and / or lowerable kinematics can be designed as a linkage kinematics, in particular as a double articulated kinematics. Alternatively, however, a linear guided movement is possible.
  • the loading surface of the lifting and / or lowering device can be folded to reduce the length of the undercarriage.
  • the mobile crane according to the invention is advantageously a mobile construction crane.
  • a mobile construction crane has at least one tower element, which is arranged erectile on the superstructure, and a boom arranged on the tower. In the erected state, the mobile construction crane can therefore be used as a tower crane.
  • the mobile crane has several tower elements which can be telescoped apart.
  • the boom is articulated.
  • the boom can consist of several boom elements, which are arranged hinged together.
  • the mobile construction crane according to the invention can erect itself at the installation site.
  • the present invention further comprises a ballast element for a mobile crane as set forth above.
  • the ballast element has means for positive connection with a lifting and / or lowering device or an adapter arranged thereon.
  • the ballast element has at least one support arm on which a downwardly directed securing pin is arranged. The securing pins engage in a recess on the top of the ballast.
  • ballast element on the superstructure by lowering the lifting and / or lowering device can be attached.
  • the ballast element is fastened to the superstructure so that it forms the rear end of the upper carriage in its mounted position.
  • the length of the rear of the superstructure is increased by attaching the ballast element.
  • a base crane is initially set up at the place of installation, which is suitable with its base ballast to lift the ballast element on the crane hook from a transport vehicle and to arrange on the lifting and / or lowering device.
  • the superstructure is rotated in the process of the invention after placing the ballast element on the lifting and / or lowering by 180 °, after which the ballast element is attached by lowering the lifting and / or lowering device at the rear of the superstructure.
  • the ballast element is attached to a base ballast of the mobile crane.
  • the assembly of the ballast element can be done without the use of a separate lifting device.
  • the lifting and / or lowering device can also be used to raise the ballast element by a certain distance in a waiting position before turning the upper carriage.
  • the ballast element can already be lifted by the mobile crane itself in the desired waiting position.
  • the present invention further comprises a method for dismantling a mobile crane, which runs correspondingly reversed.
  • the lifting and / or lowering device is used to lift the ballast element from the rear of the superstructure. Then the superstructure can be rotated by 180 ° to raise the ballast element on the crane hook and store it on a transport vehicle.
  • FIGS. 1 and 2 Now is an embodiment of a mobile crane according to the invention in a transport position and to see in a working position.
  • this is a mobile construction crane, ie a tower crane, which is movable.
  • the tower crane has a movable over a trolley along the boom crane hook.
  • the mobile crane according to the invention in this case has an undercarriage with a chassis with several tires 3 tires. Furthermore, the undercarriage has a driver's cab 4 on its front side.
  • a superstructure 2 which carries the crane superstructures 5, is arranged rotatably about the vertical axis of rotation 13.
  • the undercarriage 1 can be supported via support elements 19 at the installation site.
  • FIG. 4 To recognize the mobile crane while in its front area and at the rear Abstützhimsten from which sliding beams can be pushed out with support cylinders at their ends.
  • the tower is pivoted about a horizontal axis of rotation.
  • the tower comprises two tower elements 6 and 7, wherein the tower element 7 can be inserted into the tower element for transport.
  • the boom is hinged about a horizontal pivot axis 18 pivotally.
  • the boom consists of three boom segments 9, 10 and 11, which are pivotally hinged to each other about horizontal pivot axes.
  • a bracing 12 is provided with guy supports 16 and 17, which tensions the boom.
  • the bracing is backward via a variable-length stranding 15 with the rear part of the superstructure in combination. There, a winch is arranged, over which the stranding 15 can be changed in length.
  • the mobile crane can erect itself automatically at the place of installation without the need for additional lifting devices.
  • the setup phase is in FIG. 3 shown.
  • the undercarriage is first supported. Thereupon becomes the tower erected from the horizontal in the vertical.
  • the upper tower element 7 is telescoped out of the lower tower element 6. Now the boom is unfolded by using the brace 12 by shortening the stranding 15 in its horizontal position.
  • the undercarriage of the mobile crane according to the invention on the rear side a lifting and lowering device 30, which is designed here as a device carrier.
  • the lifting and lowering device has a loading area 30, on which devices can be transported.
  • a lifting drive 31 is provided, via which the lifting and lowering device for Aufnahe of equipment can be lowered to the ground and can be raised for transport.
  • the lifting and lowering device is arranged on the rear rear wall 32 of the undercarriage, ie on the rear Schiebeholmkasten.
  • the lifting and lowering device 30 is therefore designed simultaneously as an underrun protection device, wherein the loading area ends with a bumper and extends substantially as far to the rear, as the crane body.
  • FIG. 4 shows the mobile crane according to the invention in the transport state in a plan view, but already the sliding beams have been extended. Furthermore, in addition to the axis of rotation 13 of the superstructure and the radius of rotation 21 of the superstructure is located.
  • the boom and the male load ballast is arranged at the rear end of the superstructure.
  • a base ballast 20 is provided in the embodiment, which always remains on the uppercarriage.
  • ballast element 50 is now provided according to the invention, which, however, in many markets due to the permissible axle loads can not remain on the mobile crane when driving on the road.
  • the additional ballast must therefore be transported on an additional transport vehicle to the installation site of the mobile crane.
  • this additional ballast can now be mounted on the superstructure on the superstructure without an additional lifting device.
  • the additional ballast is lifted over the already erected mobile crane from the transport vehicle and arranged on the lifting and lowering device 30, which has a corresponding adapter for this purpose.
  • the additional ballast is attached to the crane hook 23 of the mobile crane and transported to the lifting and lowering device 30.
  • the corresponding hook position for discharging the additional ballast on the lifting and lowering device 30 is in FIG. 2 denoted by the position 70.
  • the additional ballast 50 can now be mounted on the lifting and lowering device on the superstructure.
  • the superstructure is first rotated by 180 °, so that the rear of the superstructure is positioned at the rear of the undercarriage and thus in the area of the lifting and lowering device.
  • the additional ballast 50 can now be attached to the rear of the superstructure, especially the bottom ballast.
  • the lifting and lowering device 30 which is arranged on the lower part of the rear end 32, will now be described again with reference to FIG FIG. 5 described in more detail.
  • the lifting and lowering device 30 in this case has a loading area 34, on which devices can be parked.
  • the loading area 34 in this case has a vertically arranged support arm, which is articulated via a parallel-link arrangement 35 on the undercarriage rear 32.
  • a hydraulic cylinder 36 is provided, via which the lifting and lowering device 30 can be lowered and lifted. Due to the parallel link arrangement, the lifting and lowering device can be raised and lowered without their orientation being changed.
  • an adapter 40 is now arranged according to the invention, which can safely accommodate the additional ballast, so that it can be raised or lowered via the lifting and lowering device 30.
  • the adapter 40 in this case is two support arms, which from a transport position, as in FIG. 5 is shown in the in FIG. 6 shown working position can be folded up and secured in this.
  • the support arms 40 each have a positive connection element 41 for connection to the additional ballast 50.
  • the additional ballast 50 can be placed on the connecting elements 41 and is held in a form-fitting manner by these.
  • the crane now lifts its additional ballast 50 onto the adapter 40, where it is held in a positive and secure manner.
  • the discontinuation of the additional ballast on the adapter is possible with minimal outreach of the crane.
  • Adapter and additional ballast are now lifted by the lifting and lowering device by means of the handlebar kinematics hydraulically in the right waiting position. Alternatively, the lifting device can also be moved from the beginning into the correct position, as in FIG. 6 is shown.
  • the additional ballast 50 in this case has a support arm 51, which now extends over the base ballast 20 forward.
  • a downwardly directed securing pin 52 is arranged on the support arm 51.
  • the base ballast has on its upper side a corresponding recess for the securing pin 52.
  • the additional ballast 50 is now attached to the base ballast and simultaneously positively locked via the securing pin 52.
  • the additional ballast 50 now hangs safely on the base ballast 20, as in FIG. 8 is shown.
  • the adapter 40 is now released from the additional ballast 50 and can be folded again.
  • the crane can now be used with the additional load capacity increased by the additional ballast.
  • the kinematics of the lifting and lowering device, the design of the adapter and the suspension of the additional ballast on the ballast must be coordinated accordingly.
  • the entire arrangement of lifting and lowering device, adapter, additional ballast and superstructure can be designed so that the parallel link arrangement in the waiting position, in which the rear of the superstructure is driven under the arm of the additional ballast, in a horizontal or backward and down inclined position.
  • This has the consequence that in a further lowering of the lifting and lowering device for attaching the additional ballast this is moved not only downwards, but also forward to the rear of the superstructure and the basic ballast arranged there.
  • Such a kinematics has the advantage that the front side of the additional ballast 50 can rest directly on the rear side of the uppercarriage rear or the basic ballast 20 arranged there.
  • the decrease of the additional ballast for road transport is not shown in detail in the figures.
  • the decrease is, however, as shown above in the assembly in reverse order.
  • the additional ballast is thus lifted by the lifting and lowering device via the adapter 40 until the superstructure under the additional ballast can turn away.
  • the crane is now used to lift the additional ballast from the lifting and lowering device and load on a transport vehicle.
  • the adapter can now be folded back into its transport position in order not to collide with the Aufstellkurve of the crane.
  • the other dismantling of the crane is then as usual in known mobile cranes.
  • the present invention thus describes a solution driven by the undercarriage, which is used in conjunction with the rotational movement of the superstructure for attaching the ballast.
  • the raised and lowered kinematics at the rear of the vehicle is used.
  • a linkage kinematics was used here.
  • the present invention could also be realized via a linearly guided movement.
  • the present invention provides a systematic process for attaching or detaching the ballast element to the superstructure.
  • Here can be used in mobile cranes according to the invention usually already existing facilities and orientations largely.

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

Claims (11)

  1. Grue mobile, plus particulièrement grue mobile de construction avec un chariot inférieur (1) avec un châssis (3) et un chariot supérieur (2) rotatif autour d'un axe de rotation vertical, un dispositif de levage et/ou d'abaissement (30) étant disposé sur le chariot inférieur et au moins un élément de ballast (50) pouvant être disposé sur le chariot supérieur, qui peut être transporté pendant le déplacement sur la route sur un véhicule de transport séparé, l'élément de ballast (50) pouvant être disposé sur le dispositif de levage et/ou d'abaissement (30) et pouvant être monté sur le chariot supérieur (2) à l'aide du dispositif de levage et/ou d'abaissement,
    caractérisée en ce que
    l'élément de ballast (50) pouvant être accroché à l'arrière du chariot supérieur (2) en abaissant le dispositif de levage et/ou d'abaissement (30), de façon à ce qu'il constitue, en position montée, l'extrémité arrière du chariot supérieur.
  2. Grue mobile selon la revendication 1, un adaptateur (40) étant disposé sur le dispositif de levage et/ou d'abaissement, par l'intermédiaire duquel l'élément de ballast (50) peut être logé sur le dispositif de levage et/ou d'abaissement (30) l'élément de ballast étant maintenu, de manière avantageuse, sur l'adaptateur avec une complémentarité de forme.
  3. Grue mobile selon l'une des revendications précédentes, l'élément de ballast prouvant être fixé en l'accrochant sur un ballast de base (20) à l'arrière du chariot supérieur.
  4. Grue mobile selon la revendication 3, l'élément de ballast comprenant au moins un bras porteur (51), sur lequel se trouve un axe de sécurité (52) qui, lors de l'accrochage au ballast de base (20), s'emboîte avec une complémentarité de forme dans un évidement correspondant sur le côté supérieur du ballast de base.
  5. Grue mobile selon l'une des revendications précédentes, le dispositif de levage et/ou d'abaissement étant disposé à l'arrière (32) du chariot inférieur.
  6. Grue mobile selon la revendication 5, la structure de la grue dépassant de l'arrière (32) du chariot inférieur dans l'état de transport et le dispositif de levage et/ou d'abaissement servant de protection anti-encastrement lors du déplacement sur route, du fait qu'il est globalement aussi long à l'arrière que la structure de la grue et se termine par un pare-choc.
  7. Grue mobile selon l'une des revendications précédentes, le dispositif de levage et/ou d'abaissement comprenant une surface de chargement qui peut être abaissée et levée et sur laquelle des objets peuvent être posés.
  8. Grue mobile selon l'une des revendications précédentes, avec au moins un élément de tour (6, 7) disposé sur le chariot supérieur de façon à pouvoir être redressé, et une flèche (9, 10, 11) disposée sur la tour, la grue mobile servant de grue rotative à tour dans l'état redressé.
  9. Elément de ballast (50) pour une grue mobile selon l'une des revendications précédentes, l'élément de ballast comprenant au moins un bras porteur (51), sur lequel est disposé un axe de sécurité (52) orienté vers le bas, qui peut s'emboîter avec une complémentarité de forme dans un évidement correspondant sur le côté supérieur du ballast de base(20).
  10. Procédé de montage d'une grue mobile sur un lieu d'implantation, plus particulièrement pour le montage d'une grue de construction mobile selon l'une des revendications précédentes, la grue mobile comprenant un chariot inférieur (1) avec un châssis (3) et un chariot supérieur (2) rotatif autour d'un axe de rotation vertical et un dispositif de levage et/ou d'abaissement (30) est disposé sur le chariot inférieur,
    avec les étapes suivantes :
    transport d'un élément de ballast (50) sur un véhicule de transport séparé vers le lieu d'implantation,
    disposition de l'élément de ballast (50) sur le dispositif de levage et/ou d'abaissement (30), plus particulièrement à l'aide de la grue mobile,
    montage de l'élément de ballast (50) sur le chariot supérieur à l'aide du dispositif de levage et/ou d'abaissement,
    caractérisé en ce que
    l'élément de ballast (50) est accroché à l'arrière du chariot supérieur (2) en abaissant le dispositif de levage et/ou d'abaissement (30), de façon à ce qu'il constitue, lorsqu'il est monté, l'extrémité arrière du chariot supérieur.
  11. Procédé selon la revendication 10, le chariot supérieur (2) étant tourné, après la disposition de l'élément de ballast (50) sur le dispositif de levage et/ou d'abaissement (30), de 180 degrés, l'élément de ballast étant ensuite accroché en abaissant le dispositif de levage et/ou d'abaissement à l'arrière du chariot supérieur.
EP20110002601 2010-04-14 2011-03-29 Grue mobile, notamment grue de construction mobile Active EP2377804B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010014887A DE102010014887A1 (de) 2010-04-14 2010-04-14 Mobilkran, insbesondere Mobilbaukran

Publications (2)

Publication Number Publication Date
EP2377804A1 EP2377804A1 (fr) 2011-10-19
EP2377804B1 true EP2377804B1 (fr) 2014-07-16

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EP20110002601 Active EP2377804B1 (fr) 2010-04-14 2011-03-29 Grue mobile, notamment grue de construction mobile

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Country Link
EP (1) EP2377804B1 (fr)
CN (1) CN102259803B (fr)
DE (1) DE102010014887A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012018111A1 (de) 2012-09-13 2014-03-13 Liebherr-Werk Biberach Gmbh Turmdrehkran
CN105600690B (zh) * 2015-11-30 2017-08-04 北汽福田汽车股份有限公司 起重机及其配重系统
DE202020106372U1 (de) * 2020-11-06 2022-02-11 Liebherr-Werk Nenzing Gmbh Mobilkran mit höhenverstellbarem Oberwagenballast
CN114014177A (zh) * 2021-11-17 2022-02-08 郑州新大方重工科技有限公司 一种加节增高装置和加节增高方法及起重机

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Publication number Priority date Publication date Assignee Title
WO2013056413A1 (fr) * 2011-10-18 2013-04-25 中联重科股份有限公司 Dispositif, structure et procédé de levage de contrepoids

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US3251479A (en) * 1964-02-17 1966-05-17 Bucyrus Erie Co Removable counterweight apparatus
US3419156A (en) * 1967-05-05 1968-12-31 Bucyrus Erie Co Counterweight attaching means for cranes
DE2140233C3 (de) * 1971-08-11 1974-02-07 Leo Gottwald Kg, 4000 Duesseldorf Mehrachsiger Fahrzeugkran
DE19803780C2 (de) * 1998-01-22 1999-11-18 Mannesmann Ag Kranfahrzeug
CN201082852Y (zh) * 2007-08-06 2008-07-09 长沙中联重工科技发展股份有限公司 一种汽车起重机用配重自装卸机构
CN101643182B (zh) * 2009-08-19 2014-07-09 三一汽车制造有限公司 一种平衡重装卸装置及移动式起重机

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013056413A1 (fr) * 2011-10-18 2013-04-25 中联重科股份有限公司 Dispositif, structure et procédé de levage de contrepoids

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Publication number Publication date
DE102010014887A1 (de) 2011-10-20
CN102259803B (zh) 2014-10-15
EP2377804A1 (fr) 2011-10-19
CN102259803A (zh) 2011-11-30

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