• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A main shaft fixture (10) is indicated for fixing the main shaft (4) to a wind turbine by performing assembly and repair work on heavy parts of the wind turbine arranged in the wind turbine nacelle, which fixture (10) is divided into a number of sections for mounting on the wind turbine. stable structural members (2) contained in the windmill's nacelle, including the nacelle's bottom frame (2). The main shaft fixture (10) comprises adjustable pressure mandrels (18) with pressure shoes (20), which cause the fixture 10 to be usable regardless of the geometry of the main shaft (4) on a wind turbine, and so that it can be mounted without fixing the rotor. pure (8). The main shaft fixture (10) also includes facilities (40) for mounting a lightweight crane (12) and a self-raising crane (14) with an earth-based winch, respectively, and a rotor lock (24), which in combination with the main shaft fixture (10) actuating (36) between the main shaft fixture (10) and the bottom frame (2) means that it is possible to displace the main shaft (4) and the main shaft bearing (38) vertically from its bearing in the shaft to; that the bearing can be serviced or replaced.
    公开号:DK201400573A1
    申请号:DKP201400573
    申请日:2014-10-07
    公开日:2016-04-04
    发明作者:Per E Fenger
    申请人:Liftra Ip Aps；
    IPC主号:
    专利说明:

    The present invention relates to a main shaft fixture for fixing a main shaft to a wind turbine by carrying out assembly and repair work on heavy parts of a wind turbine arranged in a nacelle on a wind turbine, which fixture is divided into a number of sections for mounting on stable wind turbines. structural parts contained in the nacelle of a wind turbine, including the nacelle bottom frame.
    When carrying out assembly and repair work in the nacelle on wind turbines, it is often necessary to fix the main shaft of the wind turbine, e.g. by changing and servicing the wind turbine gearbox, generator, or by replacing its main bearings, or other heavy structural parts contained in the nacelle of a wind turbine. Said components which are interconnected and anchored to the bottom frame of the nacelle are stable in aggregate, but when a separation is to be made when repairing and servicing the mill, static instability and imbalance can occur, which can cause damage to the construction parts of the mill. a need to fix the main shaft of the wind turbine.
    DE 102008013539 A1 (NORDEX ENERGY GMBH) discloses a main axle sawing fixture for fixing the main axle of a wind turbine during the assembly and repair work on heavy parts arranged in the nacelle on wind turbines, which fixture is divided into a number of sections for mounting on stable structural members contained in the windmill's nacelle, including the nacelle's buram.
    So far, it has been necessary to stop the mill, ie. brake this off and fix the rotor with a rotor lock, and then mount an actual fixture for retaining the main shaft, after which servicing the components of the wind turbine's nacelle can take place. However, it is inappropriate to suspend the operation of the wind turbine while mounting the main shaft fixture takes place, as the downtime of the wind turbine during the time of mounting the fixture results in a not insignificant loss of operation in the form of energy (lack of electricity) produced. Furthermore, the known main shaft fixtures are relatively inflexible with respect to shaft geometry, which means that in practice, approximately as many different fixtures as different shaft geometries must be constructed and stored, which is inappropriate. In addition, the use of seismic lifting cranes, whose spillage is located on the ground surface near the mill tower, is in widespread use, making use of large savings in the cost level for servicing wind turbines, using large mobile cranes for handling the above large and heavy components. However, this does require facilities for anchoring the crane lifting crane with the nacelle ground-based winch. In addition, however, the level raising game requires the presence of a lightweight crane, for raising cast blocks and more. it must be anchored on / in the nacelle or on the wind turbine's wings, which requires facilities for mounting the lightweight crane.
    It is thus the object of the invention to provide a main axis fixture which accommodates a more universal application with respect to axis geometry, which furthermore does not require stopping and fixing the main axis of the wind turbine.
    It is further the object of the invention to provide a main axle fixture which further provides facilities for mounting a crane lifting crane, with a ground-based winch.
    It is recognized by the invention that this is possible with a main axle fixture of the type initially specified, characterized in that the main axle fixture comprises at least three, substantially, about the center axis of the main axle, symmetrically positioned, radially displaceable thrust pins, if opposed to the main axle. facing ends are provided with pressure shoes and which pressure pins are displaceable between a passive, retracted position where the pressure shoes are configured to be spaced from the surface of the main shaft, and an active advanced lockable position where the pressure shoes are configured to be in contact with the main shaft .
    Hereby considerable flexibility is obtained with regard to the use of the main shaft fixture for fixing main shafts of different geometry on wind turbines, with the degree of displacement of the pressure mandrels only and the size of the main shaft fixture limiting its applicability. Thus, the main axle fixture is useful both for fixing cylindrical shafts of different diameters and for fixing shafts with tapered shape. The main axle fixture according to the invention is further and can be mounted on fixed structural parts, preferably the bottom frame of the nace, while the rotor of the wind turbine is in operation.
    In order to be able to use a self-lifting crane, with a ground-based winch together with the main shaft fixture of the invention, this may include mounting facilities for a self-raising crane whose winch is located on the ground surface near the wind turbine foot.
    Hereby the advantage is obtained that the establishment of facilities for fixing the main shaft of the wind turbine, as well as the establishment of mounting facilities for the self-raising crane with an earth-based winch, takes place simultaneously, which saves workflows and space, which is of great importance, as the space conditions in the a wind turbine is usually sparse, and further that both the main shaft fixture and the mounting facilities for a self-raising crane in the nacelle usually use the same fixed structural members in the nacelle tli anchorage.
    In order to ensure the easy and quick establishment of the self-raising crane, which requires the lifting of cast blocks with the ground-based winch with a lightweight crane mounted on stable structural members in the nacelle, the main shaft fixture may comprise mounting facilities for a lightweight crane. .
    In order to ensure fast fixing of the main shaft with the main shaft fixture according to the invention, the pressure mandrels may be provided with actuators for displacing and holding the pressure shoes in the passive position and the active position, respectively, or an optional position between the passive and the active position. . Hereby a time saving is obtained by displacing the pressure shoes between the passive position and the active position, pressed against the surface of the main shaft.
    In a simpler embodiment of the main shaft fixture, according to the invention, the pressure mandrels can be made of threaded bolts if the free ends facing the main shaft are provided with pressure cams, which thread-cut bolts cooperate with threaded holes in relevant sections of the fixture. In this way, the pressure mandrels with the pressure queues can be displaced between the passive position and the active position by manually turning the threaded bolts.
    In order to be able to fix the rotor on wind turbines after it has been decelerated, the main axis fixture, according to the invention, may comprise a rotor lock, for fixing the rotor of the wind turbine. geometry of the rotor, which flange at the ends is fixed to the first end of two parallel to the main shaft and on each side of this extending first beam-shaped bracket belonging to the main shaft fixture, the other end of which brackets are pivotally mounted with horizontally oriented bolted joints, on other brackets belonging to the main axle fixture anchored to the bottom frame of the naceil.
    In order to be able to replace the main bearing of the shaft without having to disassemble the main shaft, the main shaft attachment may further comprise at least one other actuator, between the bottom frame of the nace and the facing side of the first beam-shaped brackets and closest to the rotor lock. , which second actuator is displaceable between a first passive outer position and an active outer position whereby the captive element is displaced vertically.
    Hereby it is obtained that the main shaft can be raised from its bearing hanging in the locking position so that the main bearing of the shaft can be replaced or serviced without the shaft having to be removed from the nace.
    The invention is explained in more detail below with reference to the drawing, wherein; FIG. 1 is a perspective view of parts of a windmill's nacelle, showing the bottom frame of the windmill, the main shaft of the windmill, and a main shaft fixture according to the invention, with a lightweight crane and a self-lifting crane mounted; 2 is a more detailed perspective view from another angle of the one shown in FIG. 1, wherein the main shaft is made transparent, showing pressure mandrels with pressure shoes, belonging to the main axis fixture according to the invention, and fig. 3 is a more detailed perspective view from another angle of the one shown in FIG. 1, where the main shaft is made transparent, showing the actuators for raising the main shaft.
    In FIG. 1, a bottom frame 2 is seen in a nacelle (not shown) on a wind turbine (not shown), showing the main shaft 4 of the wind turbine, with gearbox 6 and rotor 8, and where the main shaft fixture 10 according to the invention is shown in mounted condition, respectively. a lightweight crane 12 and a self-raising crane 14, with a ground base straight play (not shown). The bottom frame 2 is made transparent for reasons of clarity.
    In the illustrated embodiment, the main shaft fixture 10 is anchored to the bottom frame 2 near the gearbox 6 and near the rotor 8, and comprises a multi-part frame 14 which, together with a transverse carrier 16 which is then clamped, encloses a piece of the main shaft 4 between the rotor 8 and the gearbox 6. The multi-part frame 14 is anchored to the bottom frame 2.
    In FIG. 2, it is seen in FIG. 1, but as an end view, seen from the rotor side of the shaft 4, where the rotor 8 is made transparent for the sake of clarity. As shown in FIG. 2, the multi-part frame 14 and the transverse carrier 16 comprise a total of 4 around the main shaft 2 symmetrically positioned pressure mandrels 18, with pressure shoes 20 brought into contact with the main shaft 4, for holding it.
    The pressure mandrels 18 can be made of hydraulically driven pistons whose free ends comprise the pressure shoes 20.
    As shown in FIG. 3, the main shaft fixture 10 comprises two parallel extending first supports 22 on each side of the main shaft 4, at the first end of which, close to the rotor 8, a rotor lock is fixed in the form of a flange element 24, whose hollow circle 26 geometry is similar to the hollow circle 28 geometry. on the rotor 8 over a portion of the periphery of the rotor. By locking the rotor 8, the holes 7 in the rotor 8 and the holes 9 in the flange element 24 are overlapped, after which bolts are inserted through the holes which are tightened with nuts, after which the rotor 8 is held / locked by the flange element 24.
    The other end of the parallel-carrying first supports 22 is adjacent to the gearbox 6 pivotally mounted on horizontally oriented bearing bolts 30, on a bracket 32 attached to the base frame 2. The parallel-extending first supports 22 are interconnected with other transverse supports 34, on which see bracket facilities 23 for a self-raising crane 14 with a ground-based game (not shown).
    As shown in FIG. 3 and FIG. 1, there is an actuator 36 between the bottom frame 2 and the parallel-carrying first supports 22. Activation of the actuator 36 will change the distance between the bottom frame 2 and the first supports 22, in which the flange element 24 is suspended, which will cause the flange element 24 and the rotor 8, and thus the main shaft 4 is raised, which will make it possible to replace the main shaft bearing 38 without having to hoist the main shaft 4 down to the ground, which is very economical if the main shaft bearing 38 is to be repaired or replaced.
    In FIG. 1, it is further seen how the main shaft fixture 10 comprises mounting facilities 40 for the lightweight crane 12.
    The inventor has recognized that the main shaft fixture 10 can take on other designs than the one described above and in the figure, but it does not change the inventive aspect which consists of specifying a main shaft fixture 10 of the specified type comprising adjustable pressure mandrel 18 with pressure shoe 20, which makes the fixture 10 usable regardless of the geometry of the main shaft 4 on a wind turbine, and so that it can be mounted without fixing the rotor 8, and further combining the main shaft fixture with facilities (40) respectively. a lightweight crane 12, and a self-raising crane 14, with a grounding spindle, and a rotor lock 24 and finally aligning the main shaft fixture 10 with actuators 36 so that the main shaft 4 and main shaft bearing 38 can be raised sufficiently from its bearing in the nacelle to accommodate the bearing. can be serviced or replaced.
    权利要求:
    Claims (8)
    [1]
    1. Main shaft fixture (10) ten! fixation of a major axis! (4) on a wind turbine by carrying out mounting-increasing repair work on heavy parts of a wind turbine arranged in a nacelle on a wind turbine, the fixture (10) being divided into a number of sections for mounting on stable structural members (2) provided in a windmill's nacelle, including the nacelle's bottom frame (2), characterized in that the main shaft fixture (10) comprises at least three, substantially about the central axis (11) of the main shaft, symmetrically positioned, radially displaceable mandrels (18) if opposed to the main shaft (4) facing ends are provided with pressure queues (20) and said pressure mandrels (18) are displaceable in a passive, retracted position where the pressure queues (20) are configured to be spaced from the surface of the main shaft (4) and a active advanced lockable position where the pressure shoes (20) are configured to abut the main shaft (4),
    [2]
    The main shaft fixture (10), according to claim 1, characterized in that this comprises mounting facilities for a self-raising crane (14), whose winches are located on the ground surface near the wind turbine foot.
    [3]
    Main shaft fixture (10), according to claim 1 or 2, characterized in that it comprises mounting facilities (40) for a lightweight crane (12).
    [4]
    4. The main shaft fixture (10) according to any one of claims 1-3, characterized in that the pressure mandrels (18) are provided with actuators for displacing and holding the pressure shoes (20) in the passive position and the active position, alternatively an optional position imeiiem the passive and the active position.
    [5]
    The main shaft fixture (10) according to any one of claims 1-3, characterized in that the pressure mandrels (18) are made of threaded bolts if the free ends facing the main shaft are provided with pressure cams (20), which are threaded bolts interact with threaded holes in relevant sections of the fixing groove (10).
    [6]
    The main shaft fixture (10), according to any one of claims 1-5, characterized in that this comprises a rotor lock (24) for fixing the wind turbine rotor (8).
    [7]
    Main shaft fixture (10), as claimed in any one of claims 1-6, characterized in that the rotor shaft (24) is a flange element whose bolt-circle geometry (26) corresponds to a boom circle geometry (28). on the rotor, the flange element (24) at the ends being secured to the first end (21) of two parallel to the main shaft and to each side of this extending first beam-shaped bracket (22) belonging to the main shaft! the fixture, the other end (23) of the brackets (22) is pivotally mounted with horizontally oriented boit connections (30), on other brackets (39) of the main shaft fixture (10) anchored to the bottom frame of the nacelle (2).
    [8]
    Main shaft fixture (10), according to claim 7, characterized in that between the bottom frame (2) of the nacelle it increases against this facing side (25) of the first beam-shaped brackets (22) and closest to the rotor axis (24). at least one actuator (38), which actuator (38) is displaceable between a first passive outer position and an active outer position where the flange element (24) is displaced vertically.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DK178466B1|2016-04-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US11168671B2|2017-11-22|2021-11-09|LiftWerx Holdings Inc.|Lift system mountable in a nacelle of a wind turbine|DK1617075T3|2004-07-13|2009-04-14|Eickhoff Maschinenfabrik Gmbh|Method and apparatus for replacing a drive in a wind turbine|
    DE102004060770B3|2004-12-17|2006-07-13|Nordex Energy Gmbh|Wind energy plant with holding device for a rotor shaft|
    DE102006013539A1|2006-03-24|2007-09-27|Nordex Energy Gmbh|Rotor shaft support for wind powered generator has support frame to hold the shaft for access to the bearing and gearbox|
    WO2014103018A1|2012-12-28|2014-07-03|三菱重工業株式会社|Wind power generation device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201400573A|DK178466B1|2014-10-07|2014-10-07|Main shaft fixture for wind turbines.|
    DK201400573|2014-10-07|DKPA201400573A| DK178466B1|2014-10-07|2014-10-07|Main shaft fixture for wind turbines.|
    DKPA201500527A| DK201500527A1|2014-10-07|2015-09-04|Main shaft fixing trip for fixing the main shaft on a wind turbine when carrying out installation and repair work.|
    PCT/DK2015/000040| WO2016055065A1|2014-10-07|2015-10-06|Main shaft fixture|
    US15/517,288| US10378518B2|2014-10-07|2015-10-06|Main shaft fixture|
    CA2963016A| CA2963016C|2014-10-07|2015-10-06|Main shaft fixture|
    BR112017007156A| BR112017007156A2|2014-10-07|2015-10-06|mainshaft accessory.|
    CN201580054642.2A| CN106795866B|2014-10-07|2015-10-06|Main shaft fixing device|
    JP2017518784A| JP6648123B2|2014-10-07|2015-10-06|Spindle fixing device|
    EP15848694.4A| EP3204639A4|2014-10-07|2015-10-06|Main shaft fixture|
    MA040522A| MA40522A|2014-10-07|2015-10-06|Main shaft fixture|
    MX2017004689A| MX2017004689A|2014-10-07|2015-10-06|Main shaft fixture.|
    ZA2017/02109A| ZA201702109B|2014-10-07|2017-03-24|Main shaft fixture|
    PH12017500623A| PH12017500623A1|2014-10-07|2017-04-05|Main shaft fixture|
    US16/452,617| US20190316569A1|2014-10-07|2019-06-26|Main shaft fixture|
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