WO2011050999A1 - Blade dismounting system with strap movement - Google Patents

Blade dismounting system with strap movement Download PDF

Info

Publication number
WO2011050999A1
WO2011050999A1 PCT/EP2010/051184 EP2010051184W WO2011050999A1 WO 2011050999 A1 WO2011050999 A1 WO 2011050999A1 EP 2010051184 W EP2010051184 W EP 2010051184W WO 2011050999 A1 WO2011050999 A1 WO 2011050999A1
Authority
WO
WIPO (PCT)
Prior art keywords
strap
component
mounting frame
mounting
moving mechanism
Prior art date
Application number
PCT/EP2010/051184
Other languages
French (fr)
Inventor
Peder R. Hilligsoee
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE112010004168T priority Critical patent/DE112010004168T5/en
Publication of WO2011050999A1 publication Critical patent/WO2011050999A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • B66C1/16—Slings with load-engaging platforms or frameworks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/108—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for lifting parts of wind turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/60—Assembly methods
    • F05B2230/61—Assembly methods using auxiliary equipment for lifting or holding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to the field of wind turbines.
  • the present invention relates to a system for controlling the mounting of a component of a wind turbine to a mounting frame.
  • the present invention relates to a mounting arrangement and to a method of controlling the mounting of the component of the wind turbine to the mounting frame .
  • a wind turbine component such as a blade or a nacelle
  • a crane lifts up a yoke or a mounting frame to the component to be dismounted. Straps are attached with both ends to the mounting frame, wherein the straps are wound around the component. Thereby the component is pressed in a direction to the mounting frame, so that the component is fixed to the mounting frame by the straps.
  • the straps have to be moved and wound around the component manually. Therefore, a person has to be lifted up to the component in a basket by a further second crane for mounting the straps around the component or to release the straps from the component.
  • This method is quite time- consuming and expensive, in particular because a further crane is needed to lift up the person and to mount the straps around the component manually while the mounting frame is held in a stable position by another crane.
  • EP 1 925 583 Al discloses a method of handling wind turbine blades and a device for mounting wind turbine blades on a wind turbine.
  • the wind turbine blade is mounted to a wind turbine hub located at a nacelle at the top of a wind turbine tower. Therefore, the wind turbine blade is lifted with a lifting system for handling wind turbine blades, wherein the wind turbine blades being orientated in a substantially hori ⁇ zontal position.
  • the wind turbine blade is then fixed in the substantially horizontal position to the wind turbine hub.
  • the lifting device is then released from the wind turbine blade by using a remote control unit, so that the lifting de- vice may be removed from the wind turbine blade.
  • belts press the wind turbine blades towards the mounting frame. The belts have to be moved manually by a person for being wound around the wind turbine blade.
  • This object may be met by a system for controlling the mount ⁇ ing of a component of a wind turbine to a mounting frame, by a mounting arrangement and by a method of controlling the mounting of a component of a wind turbine to a mounting frame according to the independent claims.
  • a system for controlling the mounting of a component of a wind turbine to a mounting frame is provided.
  • the component is mountable to the mounting frame by a strap.
  • the system comprises a strap moving mechanism.
  • the strap moving mechanism is adapted for moving the strap between an open position for placing the component in the mounting frame and a closed position in which the strap is wound at least partially around the component in order to se ⁇ cure the component to the mounting frame.
  • a mounting arrangement is pro ⁇ vided.
  • the mounting arrangement comprises a mounting frame for mounting a component of a wind turbine.
  • the mounting ar ⁇ rangement further comprises a system as described above for controlling the mounting of the component of the wind turbine to the mounting frame and a strap for mounting the component to the mounting frame.
  • the strap is movable between an open position for placing the component in the mounting frame and a closed position in which a strap is wound at least par- tially around the component in order to secure the component to the mounting frame.
  • a method of controlling the mounting of a component of the wind turbine to a mounting frame comprises moving the strap by a strap moving mechanism in an open position for placing the component in the frame. Moreover, the method com ⁇ prises moving the strap by a strap moving mechanism in a closed position in which the strap is wound at least par ⁇ tially around the component in order to secure the component to the mounting device.
  • component of a wind turbine may denote for in- stance a blade, a nacelle, a generator, a hub or other func ⁇ tional elements of a wind turbine that may be mounted or dis ⁇ mounted from the wind turbine on site.
  • the term "mounting frame” may denote a frame or a mounting yoke to which the component may be mounted. Moreover, the mounting frame is constructed for moving the component from the wind turbine to the ground or a transportation vehicle.
  • the mounting frame may comprise coupling elements to be cou ⁇ pled to a crane, wherein the crane may move the mounting frame to a desired destination.
  • the mounting frame may com ⁇ prise a seat that may envelop at least partially the surface of the component, so that the component is smoothly pressable against the seat of the mounting frame in order to support the component.
  • the mounting frame may comprise a plurality of legs that extend in particular orthogonal from a basic frame. Between the legs and the basic frame the component is insert- able. Therefore, the mounting frame comprises an open side through which the component is insertable.
  • the term "strap” denotes a belt, belt strap or another de- formable mounting means, such as a cord or a chain.
  • the strap is flexibly deformable.
  • the strap may be moved in an open po- sition, in which the component may be moved through the open side of the mounting frame into e.g. the seat of the mounting frame.
  • the strap is movable to a closed position, wherein in the closed position the component is secured or pressed by the strap to the mounting frame, e.g. to the seat of the mounting frame. Therefore, the strap is woundable around the component, wherein two (end) sections of the strap are (detachably) connected to the mounting frame, in particu ⁇ lar to the legs of the mounting frame.
  • strap moving mechanism denotes a mechanism that is adapted for moving the strap from the open position to the closed position and vice versa.
  • the strap moving mechanism grips one (end) section of the strap, moves the strap into the closed position and finally connects the end of the strap to the mounting frame.
  • the strap moving mechanism may release the strap and may move back into a start position.
  • a plurality of straps may be connected to a mount ⁇ ing frame, so that the component may be mounted to the mount ⁇ ing frame by a plurality of (movable) straps.
  • a plurality of strap moving mechanism may be used for control ⁇ ling and moving a plurality of straps.
  • the strap moving mechanism moves e.g. one end of the strap from one side of a blade that is inserted into the mounting frame, further under the blade and finally up to the other, opposite side of the blade.
  • the strap is connected to the mounting frame.
  • the strap that is wound around the blade may also be tightened after being fixed to the mounting frame in the closed position.
  • the present invention it is possible to mount and dismount a component of a wind turbine on site by using only one crane. Moreover, it is not any longer necessary that a person has to move the strap manually. Moreover, by using only one crane when using the strap moving mechanism, a less expensive maintenance of the wind turbine and a faster mount ⁇ ing and dismounting of components of the wind turbine on site may be achieved.
  • the system comprises a con- necting element, wherein the connecting element is formed in such a way that the system is detachably mountable to the mounting frame.
  • the system may be modularly attached to different positions of a mounting frame or to a plurality of different mounting frames.
  • one system may be used for moving different straps, so that it is not necessary to pro ⁇ vide one system for each respective strap.
  • operating costs for mounting and dismounting a component may be re ⁇ cuted .
  • the strap moving mechanism comprises a first beam and a second beam. The first beam is mountable to the mounting frame, wherein the second beam is movably connected to the first beam. The strap is detachably connectable to the second beam.
  • the first beam and the second beam may be connected e.g. by a hinge or by a pivot joint, so that the second beam is movable, i.e. tiltable, rotatable and/or longitudinally relocatable, relative to the first beam.
  • the first beam may be fixed to the mounting frame with- out providing a motion or may be connected movably to the mounting frame, in particular to a leg of the mounting frame.
  • the strap that is connected to the second beam may be moved from the closed position to the open position and vice versa. With other words, by moving the second beam, the strap may be guided from the open position to the closed position, wherein during the movement of the strap, the strap may be wound around the component.
  • the second beam may connect the strap to the mounting frame, wherein after the connection of the strap to the mounting frame the second beam may release the strap.
  • first beam and the second beam in order to wind the strap around the component.
  • the first beam and the second beam may form in the closed position an L-shape, wherein the first beam and the second beam are orientated in particular or ⁇ thogonal between each other.
  • the first beam is then mounted to a leg of the mounting frame, wherein the leg covers in particular one side of the component. From the free end of the leg, the first beam extends in an orthogonal direction below an underside of the component. At the opposed side of the leg, the second beam is moved in a parallel direction to the leg and orthogonal to the second beam.
  • the closed position is reached and the strap may be fixed to a further leg of the mounting frame.
  • the first beam and/or the second beam may comprise a light- weight material, such as aluminium, so that a very light ⁇ weight construction is achievable.
  • a first end of the first beam is mountable to the mounting frame, wherein a first end of the second beam is movably connected, e.g. by a hinge, to a second end of the first beam.
  • the strap is de- tachably connected to a second end of the second beam.
  • the first beam is detachably coupled to the second beam.
  • the system may be stored space-saving, if elements of the system, in particular the first beam and the second beam, are detachable and thus modularly. Also for transportation purposes it is advantageous that the system is modularly and may be stored space-saving.
  • the first beam and/or the second beam is/are longitudinally adjustable.
  • the first beam and/or the second beam may be adjustable in its length, so that the system is adjustable to a variety of different shapes and sizes of the component to be mounted.
  • the first beam and/or the second beam may be formed telescopic in order to provide a space-saving alterna ⁇ tive for adjusting the length of the beams.
  • the strap moving mechanism further comprises an intermediate beam.
  • the intermediate beam is movably connected to the first beam and to the second beam in such a way that the intermediate beam is interposed be- tween the first beam and the second beam.
  • the intermediate beam may be formed telescopic as well and may be detachably connected to the first beam and/or the second beam.
  • the interme ⁇ diate beam is in particular movably connected by its first end to the second end of the first beam and by its second end to the first end of the second beam.
  • the system further comprises at least one actuator for operating the strap moving mechanism.
  • the actuator may comprise servo motors, linear actua ⁇ tors, motors with a rack-and-pinion mechanism, hydraulic or pneumatic actuators.
  • the actuator drives e.g. the respective beams.
  • the actuator may be located between two movable parts, such as between the first beam, the second beam and/or the intermediate beam, so that the two components may be moved relatively with respect to each other.
  • the actuators may be remotely controlled by a control device, for instance.
  • the actuators may be operated automatically, so that the actuators move the strap self-acting from the open posi ⁇ tion to the closed position and vice-versa.
  • the actuator is adapted for controlling a pivotable movement and a tilting movement of a respective beam.
  • the actuator may control a length adjustment of a respective beam.
  • the system further comprises a control unit for controlling the strap moving mechanism.
  • the control unit is connected to the strap moving mechanism, in particular to the actuators, in order to give control com ⁇ mands for a controlled movement of the strap from the open to the closed position and vice-versa.
  • the control unit may be installed to one of the beams.
  • the control unit may be remote controlled (wire-bound or wireless) by a person or by a computer.
  • the system fur- ther comprises a sensor for detecting an operational state of the strap moving mechanism.
  • the sensors may comprise induc ⁇ tive sensors.
  • the sensor senses the position of the strap with respect to the component or with respect to the mounting frame.
  • the sensor may be placed to the first beam, the second beam and/or the intermediate (third) beam, so that the position of each of the beams with respect to each other or with respect to the component or the mount ⁇ ing frame may be determined.
  • the sensor may send output sig ⁇ nals indicative of the operational state to the control unit.
  • the control unit may control the actuators indicative of the output signals.
  • a damaging contact of the strap moving mechanism with the component during movement of the strap moving mechanism is prevented.
  • a self-acting and automatic movement of the strap moving mechanism controlled by the control unit may be provided.
  • the system further comprises a tightening device for tightening the strap in such a way that the strap clamps the component to the mounting frame.
  • a tightening device for tightening the strap in such a way that the strap clamps the component to the mounting frame.
  • the strap When moving the strap from the open position to the closed posi ⁇ tion, the strap may be wound around the component loose- fitted and slack in order to secure the component to the mounting frame.
  • the tightening device tights the strap and pulls the strap against the component, so that the component is pressed against the mounting frame.
  • the tightening device may comprise for instance a (electri ⁇ cal) pulley that is adapted for rolling up the strap in order to tight the strap.
  • the strap is adjustable to various shapes and sizes of components, so that a flexible mounting system is achieved.
  • the system further comprises a monitoring device for monitoring the strap moving mechanism.
  • the monitoring device may comprise cameras.
  • the information of the monitoring device may be sent to the control device or to a user that controls the strap moving mechanism.
  • the monitoring device is installed in particular to the second end of the second beam, so that the connection process of the strap with the mounting frame may be visualized, so that a more exact control by the user that operates the strap moving mechanism is achieved.
  • the strap moving mechanism comprises a gripping device for detachably gripping the strap.
  • the gripping device is in particular installed at the second end of the second beam.
  • the gripping device may de- tachably grip directly the strap or indirectly a connection means, such as a gripping ring, of the strap.
  • the gripping device may comprise a controllable clamping element or other controllable gripping elements (such as controllable lifting hooks or controllable clamps) that controllably grip the strap.
  • the gripping device may controllably release the strap automatically, i.e. without the manual help of a person. Therefore, the gripping device may be (remote) controlled by the control device or directly by a person that is located e.g. on the ground.
  • the gripping device By the gripping device a controllable and in particular self- acting and automatic gripping and releasing of the strap is provided.
  • the monitoring device may monitor the gripping pro ⁇ gress of the gripping device.
  • the sensors may be placed to the gripping device, so that a correct gripping and releasing of the strap may be achieved.
  • the mounting frame with one or more legs is placed e.g. by a crane or other lifting means above and parallel to the component to be mounted or dismounted.
  • the mounting frame is driven by the crane downwards in a vertical direction until at least the first beam of the strap moving mechanism passes in longitudinal direction a side of the component.
  • the intermediate beam that is turnable and pivotable connected to the first beam is turned perpendicular, so that the interme ⁇ diate beam is located below the component and extends from the one side of the component to another side of the compo ⁇ nent.
  • the second beam is in a first step turned or piv- oted in a position perpendicular to the intermediate beam below the component and secondly turned upwards passing the component on the opposed side of the component compared to the first beam.
  • the first beam and the second beam are aligned parallel at opposed sides of the component and the intermediate beam is aligned orthogonal to the first and sec ⁇ ond beam and extends below an underside of the component, wherein the underside is located opposed to a side of the component that is engaged with the mounting frame.
  • the strap is connected with a first end to the first end of the first beam or to a strap fixation of the mounting frame.
  • the strap is further connected with a second end to the sec ⁇ ond end of the second beam and in the closed position wound around at least a partial surface of the component.
  • the strap In par ⁇ ticular, by the movement of the first beam, the intermediate beam and the second beam, the strap is moved from one side of the component (i.e. the open position), down under the compo ⁇ nent and up on the other side of the component (open posi ⁇ tion) .
  • To the (second) end of the strap a lifting ring is connected and the ring is detachably attachable to the second end of the second beam.
  • the ring at the second end of the second beam is moved towards a fur ⁇ ther strap fixation (e.g.
  • the strap fixation may be connected to a tightening device that is mounted to the mounting frame, so that the strap may be tightened around the component by ac ⁇ tuation of the tightening device.
  • the tightening device is mounted to the system.
  • the tightening device comprises for instance a pulley that may roll up the strap for tightening the strap.
  • the controllable lifting hook of the gripping de ⁇ vice is detached from the strap and the strap is positioned inside the lifting hook of the strap fixation.
  • the beams are moved back to the open position, i.e. to the start ⁇ ing position.
  • the component may be removed from the wind turbine, e.g. by removing fastening and connection means such as bolts and nuts.
  • the component is hanging loose only connected to the mounting frame.
  • the mounting frame is connected by one or more supporting cables to a crane.
  • the crane moves the component to the ground.
  • a release mechanism for releasing the strap from the mounting frame is installable, so that one or more straps holding the component against the mounting frame may be released automatically, i.e. without releasing the straps manually by a person.
  • FIG. 1 shows a schematic view of an exemplary embodiment of the present invention
  • Fig. 2 shows a detailed view of the system according to an exemplary embodiment of the present invention
  • Fig. 3 shows a schematic view of a mounting frame to which the system according to an exemplary embodiment of the present invention is connected;
  • Fig. 4 shows a schematic view of the mounting frame and of the system wherein a component is inserted to the mounting frame in an open position according to an exemplary embodiment of the present invention
  • Fig. 5 to Fig. 12 show a sequence of moving the strap from an open position to a closed position according to an exemplary embodiment of the present invention
  • Fig. 13 shows a gripping device according to an exemplary embodiment of the present invention and
  • Fig. 14 shows a mounting frame to which two systems are mounted according to an exemplary embodiment of the present invention.
  • Fig. 1 shows a mounting frame 130, a strap 110 wound around a component 120 of a wind turbine and a system 100 according to an exemplary embodiment of the present invention.
  • the compo ⁇ nent 120 shown in Fig.l is a section of a blade of a wind turbine .
  • the system 100 is adapted for controlling the mounting and dismounting of the component 120 of the wind turbine to the mounting frame 130.
  • the component 120 is mountable to the mounting frame 130 by the strap 110.
  • the system 100 comprises a strap moving mechanism.
  • the strap moving mechanism is adapted for moving the strap 110 between an open position for placing the component 120 in the mounting frame 130 and a closed position, in which the strap 110 is wound at least partially around the component 120 in order to secure the component 120 to the mounting frame 130.
  • Fig. 1 shows the mounting frame 130 with a plurality of par ⁇ allel legs 131 that extend orthogonal from a basic frame 132 for enveloping at least partially the component 120.
  • Each of the legs 131 comprises an open end, so that the respective legs 131 and the basic frame 132 form an open U-shape.
  • the component 120 is insertable inside the open U-shape.
  • the strap 110 does not hinder the com ⁇ ponent 120 to be inserted inside the mounting frame 130.
  • Fig. 1 shows a closed position, in which the strap 110 is wound at least partially around a surface of the component 120. In the closed position the component 120 is completely enveloped and engaged by the basic frame 132, the legs 131 and by the strap 110 for securing the component 120.
  • a seat may be installed, wherein the seat comprises an inner shape that is aligned to the shape and contour of the component 120, so that the component 120 may be form-fitted in the seat of the mounting frame 130.
  • the strap moving mechanism shown in Fig. 1 comprises a first beam 101, a second beam 102 and an intermediate beam 103 that is interposed between the first beam 101 and the second beam 102.
  • Each of the beams 101, 102, 103 is movably connected to each other.
  • each of the beams 101, 102, 103 is pivotable, tiltable and rotatable with respect to each other.
  • a hinge or a pivoting bolt may be provided between each of the beams 101, 102, 103 a hinge or a pivoting bolt may be provided.
  • the strap 120 is detachably con ⁇ nected.
  • the strap 110 is moved from the open position to the closed position .
  • the strap fixation 106 comprises e.g. a lifting hook or a cara- biner or the like to which an eye or ring of the strap 110 is attachable.
  • the system 100 in Fig. 1 comprises a gripping device 105 that is attached in a region of the end section of the second beam 102.
  • the gripping device 105 grips the strap 110. Further- more, the gripping device is adapted for controllably releas ⁇ ing the strap 110, if the strap 110 is fixed with the strap fixation 106. After releasing of the strap 110 by the gripping device 105, the strap moving mechanism, i.e. the beams 101, 102, 103 are moveable back again into a start position.
  • the system 100 shown in Fig. 1 may comprise a tightening device 107.
  • the tightening device 107 may tighten the strap 110, when the strap 110 is in the closed position.
  • the strap 110 is at least partially form-closed adapted to the shape of the com ⁇ ponent 120 and thereby presses or pulls the component 120 in the direction to the mounting frame 130.
  • the component 120 may be pressed into a seat of the mounting de ⁇ vice 130 by tightening the strap 110.
  • the tightening device 107 may comprise for instance a pulley that is e.g. electri ⁇ cally drivable.
  • the pulley may be operable self- acting, which means that the pulley 107 may tighten the strap 110 automatically when a fixation of the strap 110 with the strap fixation 106 is detected.
  • the tightening device 107 is attachable to the mounting frame 130.
  • the tightening device 107 may be adapted for moving at least one of the strap fixations 106 along the legs 131, so that the strap 110 is pressable against the com ⁇ ponent 120.
  • the detection of a connection between the strap 110 and the strap fixation 106 may be determined by sensors, such as in ⁇ ductive sensors.
  • the system 100 comprises in an exemplary em ⁇ bodiment such sensors.
  • the sensors are e.g. attached to the gripping device 105, the beams 101, 102, 103 and/or to the tightening device 107.
  • the system 100 comprises a connecting element 104, wherein the connecting element is formed in such a way that the system 100 is detachably connectable to the mounting frame 130.
  • the connecting element 104 is e.g. a nut or a bolt that is detachably connectable to a respective fixing means of the mounting frame 130.
  • the system 100 is flexi ⁇ bly attached to different locations of the mounting frame 130 or to different mounting frames 130.
  • Fig. 2 shows a detailed view of the system 100.
  • the system 100 is designed for being detachably connectable to the mounting frame 130 by the connecting element 104.
  • the con- necting element 104 is e.g. movably connectable to the first beam 101 of the system 100.
  • the connecting element 104 is then moved along a longitudinal direction of the first beam 101.
  • guiding rods 203 are provided at a sec- ond end of the first beam 101 movably connectable.
  • the intermediate beam 103 is shown in a telescopical embodiment, with which the length of the inter ⁇ mediate beam 103 may be adjusted.
  • the second beam 102 is movably connectable to a second end of the intermediate beam 103, e.g. by a hinge 202.
  • the gripping device 105 is attached, so that the strap 110 is connectable to the second beam 102 by the grip- ping device 105.
  • Fig. 2 shows a plurality of actuators 201 that are adapted for moving the first beam 101, the second beam 102 and the intermediate beam 103 with respect to each other. Moreover, one of the actuators 201 moves the connecting ele ⁇ ments 104 along the first beam 101. Moreover, a further actuator 201 controls the adjustment of the length of the in ⁇ termediate beam 103, of the fist beam 101 and/or of the sec ⁇ ond beam 102.
  • the first beam 101 and the second beam 102 may be formed telescopic as well, so that each of the first beam 101 and the second beam 102 may be ad ⁇ justable in its length as well.
  • the system 100 may further comprise a control unit.
  • the con ⁇ trol unit is adapted for controlling the actuators 201, the gripping device 105 for gripping and releasing the strap 110 and/or the tightening device 107.
  • the control unit may be re- mote controlled, so that the control unit may receive control commands from an operator.
  • Fig. 3 shows the mounting frame 130 comprising four mounting legs 131 that are mounted to the basic frame 132.
  • the system 100 is detachably connected to one leg 131, in particular by the connecting elements 104.
  • the detachable connecting elements 104 it is possible, that the system 100 is connect ⁇ able to other legs 131 as well, so that a flexible, dismount- able system 100 is achieved.
  • the system 100 comprises the first beam 101, the second beam 102 and the intermediate beam 103 that are movable with respect to each other by the actuators 201.
  • the tightening device 107 is attached to a leg 131 and moves a strap fixation 106 along the leg 131.
  • Fig. 4 shows the mounting frame 130 with the basic frame 132 to which legs 131 are attached.
  • the legs 131 envelop at least partially the component 120, i.e. the blade, of the wind tur ⁇ bine.
  • the system 100 is connected to a leg 131.
  • the system 100 holds the strap 110 in an open position, so that the com ⁇ ponent 120 is insertable inside the mounting frame 130.
  • Fig. 5 to Fig. 12 show in a sequence the mounting of the component 120 to the mounting frame 130.
  • the strap 110 is thereby moved by the system 100 from the open position to the closed position.
  • the strap 110 is fixed with one end to a strap fixation 106 connected to a leg 131.
  • the other end of the strap 110 is detachably connected to the gripping device 105 of the system 100.
  • the gripping device 105 is connected to the second end of the second beam 102.
  • the second beam 102 is movably connected to the intermediate beam 103 and the in ⁇ termediate beam 103 is movably connected to the first beam 101.
  • the relative movements between the beams 101, 102, 103 are driven by the actuators 201.
  • the first beam 101 is enlarged parallel to the leg 131, so that the second beam 102 and the intermediate beam 103 are in a position below the component 120.
  • the movement of the first beam 101 is provided by moving the first beam 101 with re ⁇ spect to the connecting element 104 or by elongating the first beam 101 due to a telescopic design of the first beam 101.
  • the second beam 102 and the inter ⁇ mediate beam 103 are pivoted with respect to the first beam 101, so that the second beam 102 and the intermediate beam 103 are extending below the component 120.
  • the second beam 102 and the intermediate beam 103 are aligned in particular orthogonal to the first beam 101 or to the leg 131.
  • the second beam 102 is moved with respect to the intermediate beam 103 by the actuators 201 as indicated by the arrow.
  • the second beam 102 is pivoted around the intermediate beam 103 by the actuators 201.
  • the strap fixation 106 may be connected to a lightning device 107 located at the mounting frame 130.
  • Fig. 9 to Fig. 11 show in detail the fixation of the strap
  • the gripping device 105 grips an eye or a ring of the strap 110.
  • the strap fixation 106 may comprise a cara- biner or a lifting hook that comprises a secure element 901.
  • the secure element 901 may be opened in an insertion direc ⁇ tion of the ring of the strap 110.
  • Fig. 12 illustrates a final connection status of the strap
  • the strap fixation 106 may be controlla ⁇ ble, e.g. by the control device, and the securing element 901 is moved in a strap releasing position, so that the strap 110 is removable from the strap fixation 106.
  • Fig. 13 illustrates a detailed view of the gripping device 105 that is attached to the second beam 102.
  • the gripping de- vice 105 grips a ring of the strap 110.
  • the gripping device 105 clamps the ring e.g. by a first clamping element 1301 and a second clamping element 1302, wherein the first clamping element 1301 and the second clamping element 1302 are movable with respect to each other as indicated by the arrows.
  • the control device may operate the gripping device 105, e.g. by amending the relative positions of the first clamping element 1301 and the second clamping element 1302, for releasing the ring of the strap 101.
  • Fig. 14 shows a mounting frame 130 to which two systems 100 are mounted.
  • the mounting frame 130 comprises the basic frame 132 from which two pairs of legs 131 extend. To each pair of legs 131 a system 100 or a further system 1402 is mounted.
  • Fig. 14 shows the further system 1402 in the open position and the system 100 in the closed position, in which the strap 110 is connected between two legs 131.
  • the strap 110 is mounted to the strap fixation 106 of each leg 131 of a corresponding pair of legs 131.
  • the strap 110 is woundable around a surface of a component 120 (not shown in Fig. 14 for having a better overview) .
  • the first beam 101 is shown in an enlarged position.
  • the first beam 101 is aligned parallel to the leg 131 to which the first beam 101 is connected.
  • the intermediate beam 103 extends perpendicular to the first beam 101 and bridges the distance between the two legs 131 of a pair of legs 131.
  • the second beam 102 ex ⁇ tends perpendicular to the intermediate beam 103 and parallel to the legs 131.
  • the strap 110 is connected to a strap fixa ⁇ tion 106 at the leg 131.
  • a component 120 is mounted and secured to the mounting frame 130.
  • Fig. 14 shows (on the right side) the further sys ⁇ tem 1402 mounted to a leg 131 of the mounting frame 130.
  • the further system 1402 is shown in a start position in which the strap 110 is in the open position, so that a component 120 may be inserted between the corresponding legs 131 of the pair of legs 131.
  • the first beam 101 is shown in a drawn in position, so that the length of the first beam 101 is reduced.
  • the intermediate beam 103 and the second beam 102 are aligned parallel to each other.
  • the further system 1402 may be stored and mounted space saving.
  • Fig. 14 shows a frame mounted control unit 1401 that is mounted to the basic frame 132.
  • the frame mounted control unit 1401 is adapted for controlling and operating the operation of the system 100 and the further system 1402.
  • the frame mounted control unit 1401 controls the movement of the beams 101, 102, 103 and thus the movement of the strap 110.
  • the frame mounted control unit 1401 may control the gripping device 105 and the tightening device 107 (both shown in Fig. 1) .
  • the frame mounted control unit 1401 may be controlled by a user or a computer by a con ⁇ trol panel that is located spatially from the mounting frame 130.
  • the frame mounted control unit 1401 may be remote con ⁇ trolled by the control panel, wherein the data transmission may be provided with wire-bound or wireless techniques.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Automatic Assembly (AREA)
  • Wind Motors (AREA)

Abstract

It is described a system (100) for controlling the mounting of a component (120) of a wind turbine to a mounting frame (130), wherein the component (120) is mountable to the mounting frame (130) by a strap (110). The system (100) comprises a strap moving mechanism. The strap moving mechanism is adapted for moving the strap (110) between an open position for placing the component (120) in the mounting frame (130) and a closed position in which the strap (110) is wound at least partially around the component (120) in order to secure the component (120) to the mounting frame (130).

Description

DESCRIPTION
Blade Dismounting System with Strap Movement
Field of invention
The present invention relates to the field of wind turbines. In particular the present invention relates to a system for controlling the mounting of a component of a wind turbine to a mounting frame. Moreover, the present invention relates to a mounting arrangement and to a method of controlling the mounting of the component of the wind turbine to the mounting frame .
Art Background
For maintenance reasons, a wind turbine component, such as a blade or a nacelle, has to be mounted and dismounted to or from the wind turbine on site. Therefore, a crane lifts up a yoke or a mounting frame to the component to be dismounted. Straps are attached with both ends to the mounting frame, wherein the straps are wound around the component. Thereby the component is pressed in a direction to the mounting frame, so that the component is fixed to the mounting frame by the straps. The straps have to be moved and wound around the component manually. Therefore, a person has to be lifted up to the component in a basket by a further second crane for mounting the straps around the component or to release the straps from the component. This method is quite time- consuming and expensive, in particular because a further crane is needed to lift up the person and to mount the straps around the component manually while the mounting frame is held in a stable position by another crane.
EP 1 925 583 Al discloses a method of handling wind turbine blades and a device for mounting wind turbine blades on a wind turbine. The wind turbine blade is mounted to a wind turbine hub located at a nacelle at the top of a wind turbine tower. Therefore, the wind turbine blade is lifted with a lifting system for handling wind turbine blades, wherein the wind turbine blades being orientated in a substantially hori¬ zontal position. The wind turbine blade is then fixed in the substantially horizontal position to the wind turbine hub. The lifting device is then released from the wind turbine blade by using a remote control unit, so that the lifting de- vice may be removed from the wind turbine blade. For holding the wind turbine blade to the frame, belts press the wind turbine blades towards the mounting frame. The belts have to be moved manually by a person for being wound around the wind turbine blade.
Summary of the Invention
It may be an object of the present invention to provide an inexpensive and rapid mounting and dismounting method for components of a wind turbine on site.
This object may be met by a system for controlling the mount¬ ing of a component of a wind turbine to a mounting frame, by a mounting arrangement and by a method of controlling the mounting of a component of a wind turbine to a mounting frame according to the independent claims.
According to a first aspect, a system for controlling the mounting of a component of a wind turbine to a mounting frame is provided. The component is mountable to the mounting frame by a strap. The system comprises a strap moving mechanism. The strap moving mechanism is adapted for moving the strap between an open position for placing the component in the mounting frame and a closed position in which the strap is wound at least partially around the component in order to se¬ cure the component to the mounting frame. According to a further aspect, a mounting arrangement is pro¬ vided. The mounting arrangement comprises a mounting frame for mounting a component of a wind turbine. The mounting ar¬ rangement further comprises a system as described above for controlling the mounting of the component of the wind turbine to the mounting frame and a strap for mounting the component to the mounting frame. The strap is movable between an open position for placing the component in the mounting frame and a closed position in which a strap is wound at least par- tially around the component in order to secure the component to the mounting frame.
According to a further aspect of the invention, a method of controlling the mounting of a component of the wind turbine to a mounting frame is provided. The component is mountable to the mounting frame by a strap. The method comprises moving the strap by a strap moving mechanism in an open position for placing the component in the frame. Moreover, the method com¬ prises moving the strap by a strap moving mechanism in a closed position in which the strap is wound at least par¬ tially around the component in order to secure the component to the mounting device.
The term "component" of a wind turbine may denote for in- stance a blade, a nacelle, a generator, a hub or other func¬ tional elements of a wind turbine that may be mounted or dis¬ mounted from the wind turbine on site.
The term "mounting frame" may denote a frame or a mounting yoke to which the component may be mounted. Moreover, the mounting frame is constructed for moving the component from the wind turbine to the ground or a transportation vehicle. The mounting frame may comprise coupling elements to be cou¬ pled to a crane, wherein the crane may move the mounting frame to a desired destination. The mounting frame may com¬ prise a seat that may envelop at least partially the surface of the component, so that the component is smoothly pressable against the seat of the mounting frame in order to support the component. The mounting frame may comprise a plurality of legs that extend in particular orthogonal from a basic frame. Between the legs and the basic frame the component is insert- able. Therefore, the mounting frame comprises an open side through which the component is insertable.
The term "strap" denotes a belt, belt strap or another de- formable mounting means, such as a cord or a chain. The strap is flexibly deformable. The strap may be moved in an open po- sition, in which the component may be moved through the open side of the mounting frame into e.g. the seat of the mounting frame. Moreover, the strap is movable to a closed position, wherein in the closed position the component is secured or pressed by the strap to the mounting frame, e.g. to the seat of the mounting frame. Therefore, the strap is woundable around the component, wherein two (end) sections of the strap are (detachably) connected to the mounting frame, in particu¬ lar to the legs of the mounting frame. The term "strap moving mechanism" denotes a mechanism that is adapted for moving the strap from the open position to the closed position and vice versa. By use of the strap moving mechanism, the strap has not any longer to be moved manually by a person. The strap moving mechanism therefore grips one (end) section of the strap, moves the strap into the closed position and finally connects the end of the strap to the mounting frame. When the strap is moved into the closed posi¬ tion and the component is secured by the strap, the strap moving mechanism may release the strap and may move back into a start position.
Moreover, a plurality of straps may be connected to a mount¬ ing frame, so that the component may be mounted to the mount¬ ing frame by a plurality of (movable) straps. Moreover, a plurality of strap moving mechanism may be used for control¬ ling and moving a plurality of straps. In other words, the strap moving mechanism moves e.g. one end of the strap from one side of a blade that is inserted into the mounting frame, further under the blade and finally up to the other, opposite side of the blade. Next, the strap is connected to the mounting frame. In a further exemplary embodiment the strap that is wound around the blade may also be tightened after being fixed to the mounting frame in the closed position. Thus, by the present invention it is possible to mount and dismount a component of a wind turbine on site by using only one crane. Moreover, it is not any longer necessary that a person has to move the strap manually. Moreover, by using only one crane when using the strap moving mechanism, a less expensive maintenance of the wind turbine and a faster mount¬ ing and dismounting of components of the wind turbine on site may be achieved.
According to a further aspect, the system comprises a con- necting element, wherein the connecting element is formed in such a way that the system is detachably mountable to the mounting frame. Thus, the system may be modularly attached to different positions of a mounting frame or to a plurality of different mounting frames. Thus, one system may be used for moving different straps, so that it is not necessary to pro¬ vide one system for each respective strap. Thus, operating costs for mounting and dismounting a component may be re¬ duced . According to a further aspect, the strap moving mechanism comprises a first beam and a second beam. The first beam is mountable to the mounting frame, wherein the second beam is movably connected to the first beam. The strap is detachably connectable to the second beam. The first beam and the second beam may be connected e.g. by a hinge or by a pivot joint, so that the second beam is movable, i.e. tiltable, rotatable and/or longitudinally relocatable, relative to the first beam. The first beam may be fixed to the mounting frame with- out providing a motion or may be connected movably to the mounting frame, in particular to a leg of the mounting frame. When moving the second beam relatively to the first beam, the strap that is connected to the second beam may be moved from the closed position to the open position and vice versa. With other words, by moving the second beam, the strap may be guided from the open position to the closed position, wherein during the movement of the strap, the strap may be wound around the component. When the closed position is reached, the second beam may connect the strap to the mounting frame, wherein after the connection of the strap to the mounting frame the second beam may release the strap.
In an exemplary embodiment, it is sufficient to provide the first beam and the second beam in order to wind the strap around the component. The first beam and the second beam may form in the closed position an L-shape, wherein the first beam and the second beam are orientated in particular or¬ thogonal between each other. The first beam is then mounted to a leg of the mounting frame, wherein the leg covers in particular one side of the component. From the free end of the leg, the first beam extends in an orthogonal direction below an underside of the component. At the opposed side of the leg, the second beam is moved in a parallel direction to the leg and orthogonal to the second beam. Next, the closed position is reached and the strap may be fixed to a further leg of the mounting frame.
The first beam and/or the second beam may comprise a light- weight material, such as aluminium, so that a very light¬ weight construction is achievable. In particular, a first end of the first beam is mountable to the mounting frame, wherein a first end of the second beam is movably connected, e.g. by a hinge, to a second end of the first beam. The strap is de- tachably connected to a second end of the second beam.
According to a further aspect, the first beam is detachably coupled to the second beam. Thus, when the system is not in use, the system may be stored space-saving, if elements of the system, in particular the first beam and the second beam, are detachable and thus modularly. Also for transportation purposes it is advantageous that the system is modularly and may be stored space-saving.
According to a further aspect, the first beam and/or the second beam is/are longitudinally adjustable. In other words, the first beam and/or the second beam may be adjustable in its length, so that the system is adjustable to a variety of different shapes and sizes of the component to be mounted. In particular, the first beam and/or the second beam may be formed telescopic in order to provide a space-saving alterna¬ tive for adjusting the length of the beams.
According to a further aspect, the strap moving mechanism further comprises an intermediate beam. The intermediate beam is movably connected to the first beam and to the second beam in such a way that the intermediate beam is interposed be- tween the first beam and the second beam. By the intermediate beam that is movable e.g. by hinges with respect to the first beam and the second beam, a more flexible and better adjust¬ able system may be provided. The intermediate beam may be formed telescopic as well and may be detachably connected to the first beam and/or the second beam. Moreover, the interme¬ diate beam is in particular movably connected by its first end to the second end of the first beam and by its second end to the first end of the second beam. In a further exemplary embodiment, two or more movable inter¬ mediate beams may be provided between the first beam and the second beam. Thus, a better flexibility of the system is achievable . According to a further aspect, the system further comprises at least one actuator for operating the strap moving mechanism. The actuator may comprise servo motors, linear actua¬ tors, motors with a rack-and-pinion mechanism, hydraulic or pneumatic actuators. The actuator drives e.g. the respective beams. The actuator may be located between two movable parts, such as between the first beam, the second beam and/or the intermediate beam, so that the two components may be moved relatively with respect to each other. The actuators may be remotely controlled by a control device, for instance. More¬ over, the actuators may be operated automatically, so that the actuators move the strap self-acting from the open posi¬ tion to the closed position and vice-versa. The actuator is adapted for controlling a pivotable movement and a tilting movement of a respective beam. Moreover, the actuator may control a length adjustment of a respective beam.
According to a further aspect, the system further comprises a control unit for controlling the strap moving mechanism. The control unit is connected to the strap moving mechanism, in particular to the actuators, in order to give control com¬ mands for a controlled movement of the strap from the open to the closed position and vice-versa. The control unit may be installed to one of the beams. Moreover, the control unit may be remote controlled (wire-bound or wireless) by a person or by a computer.
According to a further exemplary embodiment the system fur- ther comprises a sensor for detecting an operational state of the strap moving mechanism. The sensors may comprise induc¬ tive sensors. For example, the sensor senses the position of the strap with respect to the component or with respect to the mounting frame. Moreover, the sensor may be placed to the first beam, the second beam and/or the intermediate (third) beam, so that the position of each of the beams with respect to each other or with respect to the component or the mount¬ ing frame may be determined. The sensor may send output sig¬ nals indicative of the operational state to the control unit. The control unit may control the actuators indicative of the output signals. Thus, a damaging contact of the strap moving mechanism with the component during movement of the strap moving mechanism is prevented. Moreover, by determining the operational state of the strap moving mechanism and by send¬ ing the information, in particular the output signals, to the control unit, a self-acting and automatic movement of the strap moving mechanism controlled by the control unit may be provided.
According to a further aspect, the system further comprises a tightening device for tightening the strap in such a way that the strap clamps the component to the mounting frame. When moving the strap from the open position to the closed posi¬ tion, the strap may be wound around the component loose- fitted and slack in order to secure the component to the mounting frame. When the strap has reached the closed posi¬ tion and both ends of the strap are connected to the respec- tive position at the mounting frame, the tightening device tights the strap and pulls the strap against the component, so that the component is pressed against the mounting frame. The tightening device may comprise for instance a (electri¬ cal) pulley that is adapted for rolling up the strap in order to tight the strap. Thus, the strap is adjustable to various shapes and sizes of components, so that a flexible mounting system is achieved.
According to a further aspect, the system further comprises a monitoring device for monitoring the strap moving mechanism. The monitoring device may comprise cameras. The information of the monitoring device may be sent to the control device or to a user that controls the strap moving mechanism. In an ex¬ emplary embodiment, the monitoring device is installed in particular to the second end of the second beam, so that the connection process of the strap with the mounting frame may be visualized, so that a more exact control by the user that operates the strap moving mechanism is achieved. According to a further aspect, the strap moving mechanism comprises a gripping device for detachably gripping the strap. The gripping device is in particular installed at the second end of the second beam. The gripping device may de- tachably grip directly the strap or indirectly a connection means, such as a gripping ring, of the strap. The gripping device may comprise a controllable clamping element or other controllable gripping elements (such as controllable lifting hooks or controllable clamps) that controllably grip the strap. In particular, when the strap is inserted to a strap fixation at the mounting frame, the gripping device may controllably release the strap automatically, i.e. without the manual help of a person. Therefore, the gripping device may be (remote) controlled by the control device or directly by a person that is located e.g. on the ground.
By the gripping device a controllable and in particular self- acting and automatic gripping and releasing of the strap is provided. The monitoring device may monitor the gripping pro¬ gress of the gripping device. Moreover, the sensors may be placed to the gripping device, so that a correct gripping and releasing of the strap may be achieved. Summarizing, the above described system for mounting and dismounting the component to the mounting frame and the above described method for controlling the mounting of the compo¬ nent to the mounting frame allows an inexpensive and rapid mounting or dismounting of a component to or from a wind tur- bine on site.
Therefore, the mounting frame with one or more legs is placed e.g. by a crane or other lifting means above and parallel to the component to be mounted or dismounted. When dismounting the component from the wind turbine, the mounting frame is driven by the crane downwards in a vertical direction until at least the first beam of the strap moving mechanism passes in longitudinal direction a side of the component. Next, the intermediate beam that is turnable and pivotable connected to the first beam is turned perpendicular, so that the interme¬ diate beam is located below the component and extends from the one side of the component to another side of the compo¬ nent. Next, the second beam is in a first step turned or piv- oted in a position perpendicular to the intermediate beam below the component and secondly turned upwards passing the component on the opposed side of the component compared to the first beam. In a final position, in particular in the closed position, the first beam and the second beam are aligned parallel at opposed sides of the component and the intermediate beam is aligned orthogonal to the first and sec¬ ond beam and extends below an underside of the component, wherein the underside is located opposed to a side of the component that is engaged with the mounting frame. The strap is connected with a first end to the first end of the first beam or to a strap fixation of the mounting frame.
The strap is further connected with a second end to the sec¬ ond end of the second beam and in the closed position wound around at least a partial surface of the component. In par¬ ticular, by the movement of the first beam, the intermediate beam and the second beam, the strap is moved from one side of the component (i.e. the open position), down under the compo¬ nent and up on the other side of the component (open posi¬ tion) . To the (second) end of the strap a lifting ring is connected and the ring is detachably attachable to the second end of the second beam. By turning the second beam, the ring at the second end of the second beam is moved towards a fur¬ ther strap fixation (e.g. a further lifting hook) at the mounting frame. The strap fixation may be connected to a tightening device that is mounted to the mounting frame, so that the strap may be tightened around the component by ac¬ tuation of the tightening device. In another exemplary embodiment, the tightening device is mounted to the system. The tightening device comprises for instance a pulley that may roll up the strap for tightening the strap.
By moving the second beam downwards and away from the mount- ing frame, the controllable lifting hook of the gripping de¬ vice is detached from the strap and the strap is positioned inside the lifting hook of the strap fixation. Next, the beams are moved back to the open position, i.e. to the start¬ ing position.
Next, the component may be removed from the wind turbine, e.g. by removing fastening and connection means such as bolts and nuts. The component is hanging loose only connected to the mounting frame. The mounting frame is connected by one or more supporting cables to a crane. Next, the crane moves the component to the ground. Moreover, a release mechanism for releasing the strap from the mounting frame is installable, so that one or more straps holding the component against the mounting frame may be released automatically, i.e. without releasing the straps manually by a person. It has to be noted that embodiments of the invention have been described with reference to different subject matters. In particular, some embodiments have been described with ref¬ erence to apparatus type claims whereas other embodiments have been described with reference to method type claims. However, a person skilled in the art will gather from the above and the following description that, unless other noti¬ fied, in addition to any combination of features belonging to one type of subject matter also any combination between features relating to different subject matters, in particular between features of the apparatus type claims and features of the method type claims is considered as to be disclosed with this application.
Brief Description of the Drawings
The aspects defined above and further aspects of the present invention are apparent from the examples of embodiment to be described hereinafter and are explained with reference to the examples of embodiment. The invention will be described in more detail hereinafter with reference to examples of embodi¬ ment but to which the invention is not limited. Fig. 1 shows a schematic view of an exemplary embodiment of the present invention;
Fig. 2 shows a detailed view of the system according to an exemplary embodiment of the present invention;
Fig. 3 shows a schematic view of a mounting frame to which the system according to an exemplary embodiment of the present invention is connected;
Fig. 4 shows a schematic view of the mounting frame and of the system wherein a component is inserted to the mounting frame in an open position according to an exemplary embodiment of the present invention;
Fig. 5 to Fig. 12 show a sequence of moving the strap from an open position to a closed position according to an exemplary embodiment of the present invention; Fig. 13 shows a gripping device according to an exemplary embodiment of the present invention and;
Fig. 14 shows a mounting frame to which two systems are mounted according to an exemplary embodiment of the present invention.
Detailed Description The illustrations in the drawings are schematic. It is noted that in different figures, similar or identical elements are provided with the same reference signs.
Fig. 1 shows a mounting frame 130, a strap 110 wound around a component 120 of a wind turbine and a system 100 according to an exemplary embodiment of the present invention. The compo¬ nent 120 shown in Fig.l is a section of a blade of a wind turbine . The system 100 is adapted for controlling the mounting and dismounting of the component 120 of the wind turbine to the mounting frame 130. The component 120 is mountable to the mounting frame 130 by the strap 110. The system 100 comprises a strap moving mechanism. The strap moving mechanism is adapted for moving the strap 110 between an open position for placing the component 120 in the mounting frame 130 and a closed position, in which the strap 110 is wound at least partially around the component 120 in order to secure the component 120 to the mounting frame 130.
Fig. 1 shows the mounting frame 130 with a plurality of par¬ allel legs 131 that extend orthogonal from a basic frame 132 for enveloping at least partially the component 120. Each of the legs 131 comprises an open end, so that the respective legs 131 and the basic frame 132 form an open U-shape. The component 120 is insertable inside the open U-shape. In the open position, the strap 110 does not hinder the com¬ ponent 120 to be inserted inside the mounting frame 130. Fig. 1 shows a closed position, in which the strap 110 is wound at least partially around a surface of the component 120. In the closed position the component 120 is completely enveloped and engaged by the basic frame 132, the legs 131 and by the strap 110 for securing the component 120. Between the legs 131 and the basic frame 132 a seat may be installed, wherein the seat comprises an inner shape that is aligned to the shape and contour of the component 120, so that the component 120 may be form-fitted in the seat of the mounting frame 130.
The strap moving mechanism shown in Fig. 1 comprises a first beam 101, a second beam 102 and an intermediate beam 103 that is interposed between the first beam 101 and the second beam 102. Each of the beams 101, 102, 103 is movably connected to each other. In particular, each of the beams 101, 102, 103 is pivotable, tiltable and rotatable with respect to each other. Thus, between each of the beams 101, 102, 103 a hinge or a pivoting bolt may be provided.
To the second beam 102, in particular to an open end section of the second beam 102, the strap 120 is detachably con¬ nected. Thus, when moving the first beam 101, the second beam 102 and the intermediate beam 103 with respect to each other, the strap 110 is moved from the open position to the closed position .
When reaching the closed position, the strap 110 is attachable to a strap fixation 106 of the mounting frame 130. The strap fixation 106 comprises e.g. a lifting hook or a cara- biner or the like to which an eye or ring of the strap 110 is attachable.
The system 100 in Fig. 1 comprises a gripping device 105 that is attached in a region of the end section of the second beam 102. The gripping device 105 grips the strap 110. Further- more, the gripping device is adapted for controllably releas¬ ing the strap 110, if the strap 110 is fixed with the strap fixation 106. After releasing of the strap 110 by the gripping device 105, the strap moving mechanism, i.e. the beams 101, 102, 103 are moveable back again into a start position.
Moreover, the system 100 shown in Fig. 1 may comprise a tightening device 107. The tightening device 107 may tighten the strap 110, when the strap 110 is in the closed position. Thus, when tightening the strap 110, the strap 110 is at least partially form-closed adapted to the shape of the com¬ ponent 120 and thereby presses or pulls the component 120 in the direction to the mounting frame 130. In particular, the component 120 may be pressed into a seat of the mounting de¬ vice 130 by tightening the strap 110. The tightening device 107 may comprise for instance a pulley that is e.g. electri¬ cally drivable. Moreover, the pulley may be operable self- acting, which means that the pulley 107 may tighten the strap 110 automatically when a fixation of the strap 110 with the strap fixation 106 is detected.
In an alternative embodiment of the mounting arrangement, the tightening device 107 is attachable to the mounting frame 130. In this case, the tightening device 107 may be adapted for moving at least one of the strap fixations 106 along the legs 131, so that the strap 110 is pressable against the com¬ ponent 120.
The detection of a connection between the strap 110 and the strap fixation 106 may be determined by sensors, such as in¬ ductive sensors. The system 100 comprises in an exemplary em¬ bodiment such sensors. The sensors are e.g. attached to the gripping device 105, the beams 101, 102, 103 and/or to the tightening device 107.
Moreover, the system 100 comprises a connecting element 104, wherein the connecting element is formed in such a way that the system 100 is detachably connectable to the mounting frame 130. The connecting element 104 is e.g. a nut or a bolt that is detachably connectable to a respective fixing means of the mounting frame 130. Thereby, the system 100 is flexi¬ bly attached to different locations of the mounting frame 130 or to different mounting frames 130.
Fig. 2 shows a detailed view of the system 100. The system 100 is designed for being detachably connectable to the mounting frame 130 by the connecting element 104. The con- necting element 104 is e.g. movably connectable to the first beam 101 of the system 100. In particular, the connecting element 104 is then moved along a longitudinal direction of the first beam 101. In order to support and to guide the con¬ necting element 104, guiding rods 203 are provided. At a sec- ond end of the first beam 101 the intermediate beam 103 is movably connectable. The intermediate beam 103 is shown in a telescopical embodiment, with which the length of the inter¬ mediate beam 103 may be adjusted. The second beam 102 is movably connectable to a second end of the intermediate beam 103, e.g. by a hinge 202. At the free second end of the sec¬ ond beam 102 the gripping device 105 is attached, so that the strap 110 is connectable to the second beam 102 by the grip- ping device 105.
Moreover, Fig. 2 shows a plurality of actuators 201 that are adapted for moving the first beam 101, the second beam 102 and the intermediate beam 103 with respect to each other. Moreover, one of the actuators 201 moves the connecting ele¬ ments 104 along the first beam 101. Moreover, a further actuator 201 controls the adjustment of the length of the in¬ termediate beam 103, of the fist beam 101 and/or of the sec¬ ond beam 102.
Besides the intermediate beam 103, the first beam 101 and the second beam 102 may be formed telescopic as well, so that each of the first beam 101 and the second beam 102 may be ad¬ justable in its length as well.
The system 100 may further comprise a control unit. The con¬ trol unit is adapted for controlling the actuators 201, the gripping device 105 for gripping and releasing the strap 110 and/or the tightening device 107. The control unit may be re- mote controlled, so that the control unit may receive control commands from an operator.
Fig. 3 shows the mounting frame 130 comprising four mounting legs 131 that are mounted to the basic frame 132. The system 100 is detachably connected to one leg 131, in particular by the connecting elements 104. By the detachable connecting elements 104 it is possible, that the system 100 is connect¬ able to other legs 131 as well, so that a flexible, dismount- able system 100 is achieved. As shown in Fig. 3, the system 100 comprises the first beam 101, the second beam 102 and the intermediate beam 103 that are movable with respect to each other by the actuators 201. In the embodiment of Fig.3, the tightening device 107 is attached to a leg 131 and moves a strap fixation 106 along the leg 131.
Fig. 4 shows the mounting frame 130 with the basic frame 132 to which legs 131 are attached. The legs 131 envelop at least partially the component 120, i.e. the blade, of the wind tur¬ bine. The system 100 is connected to a leg 131. The system 100 holds the strap 110 in an open position, so that the com¬ ponent 120 is insertable inside the mounting frame 130.
Fig. 5 to Fig. 12 show in a sequence the mounting of the component 120 to the mounting frame 130. The strap 110 is thereby moved by the system 100 from the open position to the closed position.
As shown in Fig. 5, the strap 110 is fixed with one end to a strap fixation 106 connected to a leg 131. The other end of the strap 110 is detachably connected to the gripping device 105 of the system 100. The gripping device 105 is connected to the second end of the second beam 102. The second beam 102 is movably connected to the intermediate beam 103 and the in¬ termediate beam 103 is movably connected to the first beam 101. The relative movements between the beams 101, 102, 103 are driven by the actuators 201.
As indicated in Fig. 5 by the arrow, in a first step the first beam 101 is enlarged parallel to the leg 131, so that the second beam 102 and the intermediate beam 103 are in a position below the component 120. The movement of the first beam 101 is provided by moving the first beam 101 with re¬ spect to the connecting element 104 or by elongating the first beam 101 due to a telescopic design of the first beam 101. Next, as shown in Fig. 6, the second beam 102 and the inter¬ mediate beam 103 are pivoted with respect to the first beam 101, so that the second beam 102 and the intermediate beam 103 are extending below the component 120. The second beam 102 and the intermediate beam 103 are aligned in particular orthogonal to the first beam 101 or to the leg 131.
Next, as shown in Fig. 7, the second beam 102 is moved with respect to the intermediate beam 103 by the actuators 201 as indicated by the arrow.
Next, as shown in Fig. 8, the second beam 102 is pivoted around the intermediate beam 103 by the actuators 201.
Thereby, the strap 110 is moved to the strap fixation 106 and is finally wound partially around the component 120. The strap fixation 106 may be connected to a lightning device 107 located at the mounting frame 130. Fig. 9 to Fig. 11 show in detail the fixation of the strap
110 with the strap fixation 106 of the mounting frame 130. At the second end of the second beam 102 the gripping device 105 is attached. The gripping device 105 grips an eye or a ring of the strap 110. The strap fixation 106 may comprise a cara- biner or a lifting hook that comprises a secure element 901. The secure element 901 may be opened in an insertion direc¬ tion of the ring of the strap 110.
After inserting and connecting the strap 110 into the lifting hook of the strap fixation 106, the gripping device 105 re¬ leases the strap 110, so that the second beam 102 and thus the complete system 100 may be moved back into the start po¬ sition. Fig. 12 illustrates a final connection status of the strap
110 with the leg 131 by the strap fixation 106. For releasing the strap 110 again, the strap fixation 106 may be controlla¬ ble, e.g. by the control device, and the securing element 901 is moved in a strap releasing position, so that the strap 110 is removable from the strap fixation 106.
Fig. 13 illustrates a detailed view of the gripping device 105 that is attached to the second beam 102. The gripping de- vice 105 grips a ring of the strap 110. The gripping device 105 clamps the ring e.g. by a first clamping element 1301 and a second clamping element 1302, wherein the first clamping element 1301 and the second clamping element 1302 are movable with respect to each other as indicated by the arrows. The control device may operate the gripping device 105, e.g. by amending the relative positions of the first clamping element 1301 and the second clamping element 1302, for releasing the ring of the strap 101.
Fig. 14 shows a mounting frame 130 to which two systems 100 are mounted. The mounting frame 130 comprises the basic frame 132 from which two pairs of legs 131 extend. To each pair of legs 131 a system 100 or a further system 1402 is mounted.
Fig. 14 shows the further system 1402 in the open position and the system 100 in the closed position, in which the strap 110 is connected between two legs 131.
In the closed position, the strap 110 is mounted to the strap fixation 106 of each leg 131 of a corresponding pair of legs 131. In this closed position, the strap 110 is woundable around a surface of a component 120 (not shown in Fig. 14 for having a better overview) . In this position, the first beam 101 is shown in an enlarged position. The first beam 101 is aligned parallel to the leg 131 to which the first beam 101 is connected. The intermediate beam 103 extends perpendicular to the first beam 101 and bridges the distance between the two legs 131 of a pair of legs 131. The second beam 102 ex¬ tends perpendicular to the intermediate beam 103 and parallel to the legs 131. The strap 110 is connected to a strap fixa¬ tion 106 at the leg 131. In this closed position, a component 120 is mounted and secured to the mounting frame 130. Moreover, Fig. 14 shows (on the right side) the further sys¬ tem 1402 mounted to a leg 131 of the mounting frame 130. The further system 1402 is shown in a start position in which the strap 110 is in the open position, so that a component 120 may be inserted between the corresponding legs 131 of the pair of legs 131. In the start position of the further system 1402, the first beam 101 is shown in a drawn in position, so that the length of the first beam 101 is reduced. Moreover, the intermediate beam 103 and the second beam 102 are aligned parallel to each other. Thus, the further system 1402 may be stored and mounted space saving.
Furthermore, Fig. 14 shows a frame mounted control unit 1401 that is mounted to the basic frame 132. The frame mounted control unit 1401 is adapted for controlling and operating the operation of the system 100 and the further system 1402. In other words, the frame mounted control unit 1401 controls the movement of the beams 101, 102, 103 and thus the movement of the strap 110. Moreover, the frame mounted control unit 1401 may control the gripping device 105 and the tightening device 107 (both shown in Fig. 1) . The frame mounted control unit 1401 may be controlled by a user or a computer by a con¬ trol panel that is located spatially from the mounting frame 130. The frame mounted control unit 1401 may be remote con¬ trolled by the control panel, wherein the data transmission may be provided with wire-bound or wireless techniques.
It should be noted that the term "comprising" does not ex- elude other elements or steps and "a" or "an" does not ex¬ clude a plurality. Also elements described in association with different embodiments may be combined. It should also be noted that reference signs in the claims should not be con¬ strued as limiting the scope of the claims. List of reference signs:
100 system
101 first beam
102 second beam
103 intermediate beam
104 connecting element
105 gripping device
106 strap fixation
107 tightening device
110 strap
120 component
130 mounting frame
131 leg
132 basic frame
201 actuator
202 hinge
203 guiding rod
901 secure element
1301 first clamping element
1302 second clamping element
1401 frame mounted control unit
1402 further system

Claims

CLAIMS :
1. System (100) for controlling the mounting of a component (120) of a wind turbine to a mounting frame (130), wherein the component (120) is mountable to the mounting frame (130) by a strap (110), wherein the system (100) com¬ prises
a strap moving mechanism,
wherein the strap moving mechanism is adapted for moving the strap (110) between an open position for placing the component (120) in the mounting frame (130) and a closed posi¬ tion in which the strap (110) is wound at least partially around the component (120) in order to secure the compo¬ nent (120) to the mounting frame (130) .
2. System (100) of claim 1, further comprising
a connecting element (104),
wherein the connecting element (104) is formed in such a way that the system (100) is detachably connecting to the mounting frame (130) .
3. System (100) of claims 1 or 2,
wherein the strap moving mechanism comprises a first beam (101) and a second beam (102),
wherein the first beam (101) is mountable to the mount¬ ing frame ( 130 ) ,
wherein the second beam (102) is movably connected to the first beam (101), and
wherein the strap (110) is detachably connectable to the second beam (102) .
4. System (100) of claim 3,
wherein the first beam (101) is detachably coupled to the second beam (102) .
5. System (100) of claims 3 or 4,
wherein the first beam (101) and/or the second
beam (102) is/are longitudinally adjustable.
6. System (100) of one of the claims 3 to 5,
wherein the strap moving mechanism further comprises an intermediate beam (103),
wherein the intermediate beam (103) is movably connected to the first beam (101) and to the second beam (102) in such a way that the intermediate beam (103) is interposed between the first beam (101) and the second beam (102) .
7. System (100) of one of the claims 1 to 6, further com¬ prising
at least one actuator (201) for operating the strap moving mechanism.
8. System (100) of one of the claims 1 to 7, further com¬ prising
a control unit for controlling the strap moving mecha¬ nism.
9. System (100) of one of the claims 1 to 8, further com¬ prising
a sensor for detecting an operational state of the strap moving mechanism.
10. System (100) of one of the claims 1 to 9, further com¬ prising
a tightening device (107) for tightening the strap (110) in such a way that the strap (110) clamps the component (120) to the mounting frame (130) .
11. System (100) of one of the claims 1 to 10, further com¬ prising
a monitoring device for monitoring the strap moving mechanism.
12. System (100) of one of the claims 1 to 11,
wherein the strap moving mechanism comprises a gripping device (105) for detachably gripping the strap (110) .
13. Mounting arrangement, comprising
a mounting frame (130) for mounting a component (120) of a wind turbine,
a system (100) of one of the claims 1 to 12 for control¬ ling the mounting of the component (120) of the wind turbine to the mounting frame (130), and
a strap (110) for mounting the component (120) to the mounting frame (130),
wherein the strap (110) is movable between an open posi¬ tion for placing the component (120) in the mounting frame (130) and a closed position in which the strap (110) is wound at least partially around the component (120) in order to se¬ cure the component (120) to the mounting frame (130) .
14. Method of controlling the mounting of a component (120) of a wind turbine to a mounting frame (130), wherein the com¬ ponent (120) is mountable to the mounting frame (130) by a strap (110), wherein the method comprises
moving the strap (110) by a strap moving mechanism in an open position for placing the component (120) in the mounting frame (130), and
moving the strap (110) by a strap moving mechanism in a closed position in which the strap (110) is wound at least partially the component (120) in order to secure the compo¬ nent (120) to the mounting frame (130) .
PCT/EP2010/051184 2009-10-30 2010-02-01 Blade dismounting system with strap movement WO2011050999A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112010004168T DE112010004168T5 (en) 2009-10-30 2010-02-01 Rotor blade disassembly system with belt movement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25633109P 2009-10-30 2009-10-30
US61/256,331 2009-10-30

Publications (1)

Publication Number Publication Date
WO2011050999A1 true WO2011050999A1 (en) 2011-05-05

Family

ID=43216929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/051184 WO2011050999A1 (en) 2009-10-30 2010-02-01 Blade dismounting system with strap movement

Country Status (2)

Country Link
DE (1) DE112010004168T5 (en)
WO (1) WO2011050999A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562124A1 (en) * 2011-08-22 2013-02-27 General Electric Company Lift system and method for constructing a wind turbine
FR2979335A1 (en) * 2011-08-22 2013-03-01 Degremont Device for handling lengthened object in cylindrical or prismatic form i.e. filtration module membrane, has rigid gripping element that comprises engagement unit with hoist on side opposite to concave surface
EP2708487A1 (en) * 2012-09-17 2014-03-19 Areva Wind GmbH Lifter and method for handling a rotor blade, rotor blade for a wind generator and method for marking a rotor blade, system comprising a lifter and a rotor blade
EP2738133A1 (en) * 2012-11-30 2014-06-04 Areva Wind GmbH Lifter for handling a rotor blade of a wind turbine and method of operating the same
EP2832676A1 (en) 2013-07-29 2015-02-04 Siemens Aktiengesellschaft Blade gripping device
EP2832675A1 (en) 2013-07-29 2015-02-04 Siemens Aktiengesellschaft Blade gripping device
EP2832677A1 (en) 2013-07-29 2015-02-04 Siemens Aktiengesellschaft Blade gripping tool and device
CN105905813A (en) * 2016-06-24 2016-08-31 成都世唯科技有限公司 Blade hoisting tool for wind-driven generator
WO2016146184A1 (en) 2015-03-18 2016-09-22 Siemens Aktiengesellschaft Automated receptor system
CN106044539A (en) * 2016-06-24 2016-10-26 成都世唯科技有限公司 Fan blade lifting tool support with lifting belt tightening mechanism
WO2021156508A1 (en) * 2020-02-06 2021-08-12 Deme Offshore Be N.V. Method and hoisting yoke for taking up an elongate object
WO2024076231A1 (en) * 2022-10-06 2024-04-11 Iqip Holding B.V. A lifting system for lifting a monopile, a cradle, a vessel and a method of storing a monopile on a vessel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108622789B (en) * 2018-05-14 2019-10-25 东北大学 A kind of hoisting device and operating method for installing wind turbine blade
DE102022104895A1 (en) 2022-03-02 2023-09-07 Hawart Sondermaschinenbau Gmbh Lifting device for lifting a rotor blade and holding device therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925583A1 (en) 2006-11-23 2008-05-28 Siemens Aktiengesellschaft Method of handling wind turbine blades and device for mounting wind turbine blades, in particular mounting blades on a wind turbine
WO2008132226A1 (en) * 2007-04-30 2008-11-06 Vestas Wind Systems A/S A mounting device
EP2003333A1 (en) * 2007-06-15 2008-12-17 Siemens Aktiengesellschaft Method for mounting of at least two components of a wind turbine and use of a handling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1925583A1 (en) 2006-11-23 2008-05-28 Siemens Aktiengesellschaft Method of handling wind turbine blades and device for mounting wind turbine blades, in particular mounting blades on a wind turbine
WO2008132226A1 (en) * 2007-04-30 2008-11-06 Vestas Wind Systems A/S A mounting device
EP2003333A1 (en) * 2007-06-15 2008-12-17 Siemens Aktiengesellschaft Method for mounting of at least two components of a wind turbine and use of a handling device

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2979335A1 (en) * 2011-08-22 2013-03-01 Degremont Device for handling lengthened object in cylindrical or prismatic form i.e. filtration module membrane, has rigid gripping element that comprises engagement unit with hoist on side opposite to concave surface
CN102951549A (en) * 2011-08-22 2013-03-06 通用电气公司 Lift system and method for constructing a wind turbine
US8595931B2 (en) 2011-08-22 2013-12-03 General Electric Company Lift system and method for constructing a wind turbine
EP2562124A1 (en) * 2011-08-22 2013-02-27 General Electric Company Lift system and method for constructing a wind turbine
CN104640801A (en) * 2012-09-17 2015-05-20 阿雷瓦风力公司 Lifter and method for handling a rotor blade, rotor blade for a wind generator and method for marking a rotor blade, system comprising a lifter and a rotor blade
EP2708487A1 (en) * 2012-09-17 2014-03-19 Areva Wind GmbH Lifter and method for handling a rotor blade, rotor blade for a wind generator and method for marking a rotor blade, system comprising a lifter and a rotor blade
WO2014041180A1 (en) * 2012-09-17 2014-03-20 Areva Wind Gmbh Lifter and method for handling a rotor blade, rotor blade for a wind generator and method for marking a rotor blade, system comprising a lifter and a rotor blade
US9546080B2 (en) 2012-09-17 2017-01-17 Areva Wind Gmbh Lifter and method for handling a rotor blade, rotor blade for a wind generator and method for marking a rotor blade, system comprising a lifter and a rotor blade
WO2014083184A1 (en) * 2012-11-30 2014-06-05 Areva Wind Gmbh Lifter for handling a rotor blade of a wind turbine and method of operating the same
EP2738133A1 (en) * 2012-11-30 2014-06-04 Areva Wind GmbH Lifter for handling a rotor blade of a wind turbine and method of operating the same
CN104822616A (en) * 2012-11-30 2015-08-05 阿雷瓦风力公司 Lifter for handling rotor blade of wind turbine and method of operating same
EP2832677A1 (en) 2013-07-29 2015-02-04 Siemens Aktiengesellschaft Blade gripping tool and device
CN104340848A (en) * 2013-07-29 2015-02-11 西门子公司 Blade gripping tool and device
CN104340861A (en) * 2013-07-29 2015-02-11 西门子公司 Blade gripping device
EP2832676A1 (en) 2013-07-29 2015-02-04 Siemens Aktiengesellschaft Blade gripping device
US9206017B2 (en) 2013-07-29 2015-12-08 Siemens Aktiengesellschaft Blade gripping tool and device
US9321613B2 (en) 2013-07-29 2016-04-26 Siemens Aktiengesellschaft Blade gripping device
CN104340848B (en) * 2013-07-29 2017-10-10 西门子公司 blade gripping tool and device
US9440821B2 (en) 2013-07-29 2016-09-13 Siemens Aktiengesellschaft Blade gripping device with rectangular carrying structure
EP2832675A1 (en) 2013-07-29 2015-02-04 Siemens Aktiengesellschaft Blade gripping device
WO2016146184A1 (en) 2015-03-18 2016-09-22 Siemens Aktiengesellschaft Automated receptor system
CN107406236A (en) * 2015-03-18 2017-11-28 西门子公司 Automate recipient system
US10214392B2 (en) 2015-03-18 2019-02-26 Siemens Aktiengesellschaft Automated receptor system
CN106044539A (en) * 2016-06-24 2016-10-26 成都世唯科技有限公司 Fan blade lifting tool support with lifting belt tightening mechanism
CN105905813A (en) * 2016-06-24 2016-08-31 成都世唯科技有限公司 Blade hoisting tool for wind-driven generator
WO2021156508A1 (en) * 2020-02-06 2021-08-12 Deme Offshore Be N.V. Method and hoisting yoke for taking up an elongate object
BE1028033B1 (en) * 2020-02-06 2021-09-07 Deme Offshore Be Nv Method and lifting beam for lifting an elongated object
WO2024076231A1 (en) * 2022-10-06 2024-04-11 Iqip Holding B.V. A lifting system for lifting a monopile, a cradle, a vessel and a method of storing a monopile on a vessel
NL2033252B1 (en) * 2022-10-06 2024-04-19 Iqip Holding B V A lifting system for lifting a monopile, a cradle, a vessel and a method of storing a monopile on a vessel

Also Published As

Publication number Publication date
DE112010004168T5 (en) 2012-12-27

Similar Documents

Publication Publication Date Title
WO2011050999A1 (en) Blade dismounting system with strap movement
US8567833B2 (en) Blade lifting system with saloon doors
JP4204556B2 (en) Installation method of rotor blades for wind power generation equipment without crane
DK2507514T3 (en) Wind energy system with hoisting device
EP2245304B1 (en) A method for handling and/or servicing components of a wind turbine and a gripping apparatus for performing the method
DK3023633T3 (en) METHOD AND SERVICE TO SERVICE WINDOW MOTOR
US10113530B2 (en) Methods and systems for removing and/or installing wind turbine rotor blades
US11092139B2 (en) Rotor blade replacement system
US20190257292A1 (en) Method for handling a wind turbine blade
AU2003237665A1 (en) Method for assembling/dismounting components of a wind power plant
CA2791543A1 (en) A method of craneless mounting or demounting of a wind turbine blade
CN101324221A (en) Method for mounting of at least two components of a wind turbine and use of a handling device
US20150298943A1 (en) Lifting device for assembly and disassembly of wind turbine components
US9802795B2 (en) Crane for handling of wind turbine generator components and method of hoisting of such a crane
WO2012062352A1 (en) Lifting beam for use in hoisting a wind turbine blade
KR20070045098A (en) Luffing jib crane erection process and system
WO2011134472A1 (en) Handling of a crane for use in installation and service of wind turbine generator components
ES2913835T3 (en) System and method for removing or installing a main shaft of a wind turbine with a push-pull system configured at one end of the main shaft
ES2913836T3 (en) System and method for removing or installing with rope a main shaft of a wind turbine
EP3849930A1 (en) Rotor blade hoisting system and method of installation and/or deinstallation of a rotor blade
CN105408628A (en) Rotor of a wind turbine
AU2008286251A1 (en) Auxiliary device for installing the lower and upper jib support of an adjustable auxiliary boom on a mobile crane
CN113023572B (en) Blade lifting device and method for detaching blade and installing blade by using same
CN111065815B (en) Work platform system and method for installing work platform system
WO2018050195A1 (en) Method and apparatus for fitting a tip extension to a wind turbine blade

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10703042

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 1120100041687

Country of ref document: DE

Ref document number: 112010004168

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10703042

Country of ref document: EP

Kind code of ref document: A1