WO2024119658A1 - Megawatt-class wind power generating set - Google Patents

Megawatt-class wind power generating set Download PDF

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Publication number
WO2024119658A1
WO2024119658A1 PCT/CN2023/081876 CN2023081876W WO2024119658A1 WO 2024119658 A1 WO2024119658 A1 WO 2024119658A1 CN 2023081876 W CN2023081876 W CN 2023081876W WO 2024119658 A1 WO2024119658 A1 WO 2024119658A1
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WIPO (PCT)
Prior art keywords
main shaft
speed
transmission structure
megawatt
wind turbine
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PCT/CN2023/081876
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French (fr)
Chinese (zh)
Inventor
马忠威
王文慧
曹丛磊
柴士伟
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迈格钠磁动力股份有限公司
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Publication of WO2024119658A1 publication Critical patent/WO2024119658A1/en

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    • 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

Definitions

  • the present invention relates to the technical field of wind turbine generator sets, and in particular to a megawatt-class wind turbine generator set.
  • Wind turbines are generally divided into three types: direct drive, doubly fed and semi-direct drive.
  • the drive chain of a direct-drive wind turbine mainly consists of a hub, a main shaft and a main shaft bearing.
  • One end of the main shaft is directly connected to the hub.
  • the main shaft bearing is sleeved on the outside of the main shaft.
  • the inner ring of the main shaft bearing rotates with the main shaft.
  • the outer ring of the main shaft bearing is fixedly connected to the tower.
  • the other end of the main shaft is connected to the permanent magnet generator.
  • the wind energy drives the blade hub to directly drive a permanent magnet generator through the main shaft to generate electricity.
  • the drive chain of existing doubly fed and semi-driven wind turbines mainly consists of a hub, a main shaft, a main shaft bearing and a speed-increasing gearbox.
  • a speed-increasing gearbox between the main shaft and the doubly fed generator or the permanent magnet generator, the speed of the wind is increased by the speed-increasing gearbox, thereby improving the conversion efficiency of the wind.
  • Doubly-fed wind turbines or semi-driven wind turbines are driven by wind energy to drive the bladed paddle wheel hub through the main shaft to drive the speed-increasing gearbox.
  • the doubly-fed wind turbine then drives a doubly-fed generator through the speed-increasing gearbox to generate electricity.
  • the speed-increasing gearbox of the semi-driven wind turbine drives a permanent magnet generator to generate electricity.
  • the present invention provides a megawatt-class wind turbine generator set, whose motor and speed increaser part adopt a unitized design, which solves the problem that existing large-megawatt wind turbines are difficult to design, manufacture and maintain, increases the number of parts used in the equipment, reduces the difficulty of maintenance, and facilitates unitized replacement and repair when the equipment fails.
  • the main technical solutions adopted by the present invention include:
  • a megawatt-class wind turbine generator set includes a blade hub, a main transmission structure, a supporting structure, and a plurality of speed-increasing power generation units;
  • the impeller hub is fixedly connected to one side of the main transmission structure, and the main transmission structure is connected to a plurality of the speed-increasing power generation units;
  • a plurality of the speed-increasing power generation units are arranged on the support structure along the axial direction of the support structure, and one end of the main transmission structure is connected to the support structure and can rotate relative to the support structure;
  • Each of the speed-increasing power generation units comprises a secondary transmission structure and a generator
  • the first end of the auxiliary transmission structure is connected to the main transmission structure, and the second end of the auxiliary transmission structure is connected to the generator;
  • the impeller hub drives the auxiliary transmission structure to rotate through the main transmission structure, and the auxiliary transmission structure drives the generator to generate electricity.
  • the main transmission structure includes a driving ring gear and a main shaft;
  • the driving gear ring is provided with transmission teeth along the circumference of its inner side wall, and the transmission teeth are meshed with the first end of the auxiliary transmission structure.
  • the first end of the main shaft is coaxially fixedly connected with the driving gear ring, and the second end of the main shaft rotates relative to the supporting structure.
  • the diameter ratio of the drive ring gear to the main shaft is:.
  • the driving gear ring is a cylindrical structure with one end closed, and the driving gear ring includes Cylindrical sidewalls and disc-type end caps;
  • the disc-type end cover is detachably connected to the impeller hub, and the transmission gear is arranged inside the cylindrical side wall;
  • the disc-type end cover is connected to the main shaft.
  • a plurality of weight-reducing holes are provided on the disc-type end cover.
  • the auxiliary transmission structure includes a driven gear, a coupling and a speed increasing gear box;
  • the driven gear is meshed with the transmission teeth, the driven gear is connected to the speed increasing gear box through the coupling, and the speed increasing gear box is connected to the generator.
  • the supporting structure comprises a supporting seat extending radially outwardly along the main axis, and the supporting seat has a central through hole and a plurality of mounting holes;
  • the central through hole is used for plugging the main shaft
  • the plurality of mounting holes can be used to detachably mount corresponding speed-increasing power generation units.
  • the support seat includes a motor mounting seat and a connecting cylinder
  • the central through hole is opened along the axial direction of the connecting cylinder.
  • the motor mounting seat is an annular structure.
  • the motor mounting seat is arranged at one end of the connecting cylinder.
  • the motor mounting seat is used to mount the generator.
  • the support seat further comprises a support ring, and the support ring is sleeved and fixedly connected to the outside of the connecting cylinder;
  • a plurality of mounting holes are arranged on the support ring in an axial ring array along the support ring.
  • a main shaft bearing is arranged between the main shaft and the connecting cylinder, and the main shaft bearing is sleeved on the main shaft.
  • a megawatt-class wind turbine generator set of the present invention is connected to a blade hub through a first end of a main transmission structure, a second end of the main transmission structure rotates with a supporting structure, a plurality of speed-increasing power generation units are arranged on the supporting structure, the speed-increasing power generation units include a secondary transmission structure and a generator, and then the main transmission structure and the secondary transmission structure are connected to the blade hub, and the second end of the main transmission structure rotates with the supporting structure, and a plurality of speed-increasing power generation units are arranged on the supporting structure, and the speed-increasing power generation units include a secondary transmission structure and a generator.
  • the unitized manufacturing cost of the generator is lower.
  • the present invention can meet the power generation needs of wind turbines of different models by increasing or decreasing the number of speed-up power generation units, which is convenient for large-scale manufacturing and use, and is conducive to reducing costs, greatly reducing the difficulty of maintenance and reducing maintenance costs, and facilitating the direct use of replacement technology to replace damaged or repaired units, greatly improving engineering efficiency.
  • FIG1 is an overall three-dimensional schematic diagram of a megawatt-class wind turbine generator set according to the present invention.
  • FIG2 is a schematic diagram of the side cross-sectional structure of FIG1 ;
  • FIG. 3 is a schematic diagram of the structure of the speed-increasing power generation unit of FIG. 1
  • FIG4 is a schematic diagram of the three-dimensional structure of the main transmission structure of FIG1 ;
  • FIG. 5 is a schematic diagram of the three-dimensional structure of the supporting structure of FIG. 1 .
  • an embodiment of the present invention provides a megawatt-class wind turbine generator set, which can be applicable to semi-direct drive and doubly fed megawatt-class wind turbine generator sets, including a blade hub 1 , a main transmission structure 2 , a support structure 3 and a plurality of speed-increasing power generation units 4 .
  • the impeller hub 1 is fixedly connected to one side of the main transmission structure 2.
  • the main transmission structure 2 is connected to a plurality of speed-increasing power generation units 4.
  • the main transmission structure 2 includes a driving gear ring 21 and a main shaft 22.
  • the driving gear ring 21 is provided with transmission teeth 213 along the circumference of its inner side wall, and the transmission teeth 213 are meshed with the first end of the auxiliary transmission structure 41 of the speed-increasing power generation unit 4, and the first end of the main shaft 22 is coaxially fixedly connected with the driving gear ring 21, and the second end of the main shaft 22 rotates relative to the supporting structure 3.
  • the main transmission structure 2 adopts a driving gear ring 21, which is easy to process and shape, and is easy to install, and is integrally formed with the main shaft 22.
  • the driving gear ring 21 meshes with the auxiliary transmission structure 41 to achieve a better transmission effect.
  • the drive ring gear 21 of the main transmission structure 2 is the main key component in this embodiment, and the drive ring gear 21 is directly connected to the main shaft 22.
  • the main shaft 22 does not bear the main torque, but is mainly responsible for bearing the bending moment, radial and axial loads generated and transmitted by the blade hub 1.
  • the bending moment, radial and axial loads borne by the main shaft 22 are transmitted to the stationary support seat 31 through the main shaft bearing 5. Since the main shaft 22 does not bear torque, but only bears bending moment, radial and axial loads, the diameter of the main shaft 22 can be greatly reduced, the manufacturing cost of the main shaft 22 can be reduced, and the difficulty of processing and installation can be reduced.
  • the diameter ratio of the driving gear ring 21 to the main shaft 22 is 3:1.
  • the diameter of the driving gear ring 21 is much larger than the main shaft 22, so the diameter of the main shaft 22 can be reduced under the premise of adapting to large-megawatt wind turbines.
  • a main shaft bearing 5 is arranged between the main shaft 22 and the connecting cylinder 314, and the main shaft bearing 5 is sleeved on the main shaft 22. Since the main shaft 22 has a low load-bearing torque and a reduced shaft diameter, a small-sized main shaft bearing 5 can be used, and the design is more flexible.
  • the main shaft bearing 5 includes but is not limited to rolling bearings, sliding bearings, permanent magnet composite bearings, electromagnetic suspension bearings and the like. A variety of bearing options are more conducive to further reducing the use cost of bearings and improving the reliability and service life of bearings.
  • the above is the main structure of the base but is not limited to lightweight design of the base or other improvements to enhance structural strength.
  • the driving gear ring 21 is a cylindrical structure with one end closed, and the driving gear ring 21 includes a cylindrical side wall 211 and a disc-shaped end cover 212 .
  • the disc-shaped end cover 212 is detachably connected to the impeller hub 1, and the transmission gear 213 is provided inside the cylindrical side wall 211;
  • the disc-type end cover 212 is connected to the main shaft 22. Further, the disc-type end cover 212 is provided with a plurality of weight-reducing holes.
  • a plurality of speed-increasing power generation units 4 are arranged on the supporting structure 3 along the axial direction of the supporting structure 3, and one end of the main transmission structure 2 is connected to the supporting structure 3 and can rotate relative to the supporting structure 3;
  • the support structure 3 includes a support seat 31 extending radially outwardly along the main shaft 22, and the support seat 31 has a central through hole 311 and a plurality of mounting holes 312.
  • the central through hole 311 is used to plug the main shaft 22.
  • the plurality of mounting holes 312 can detachably mount the corresponding speed-increasing power generation unit 4.
  • the support seat 31 includes a motor mounting seat 313 and a connecting cylinder 314.
  • the central through hole 311 is opened along the axial direction of the connecting cylinder 314, and the main shaft 22 is inserted into the connecting cylinder 314, and rotates relative to the connecting cylinder 314 through the main shaft bearing 5.
  • the motor mounting seat 313 is an annular structure, and the motor mounting seat 313 is arranged at one end of the connecting cylinder 314.
  • the motor mounting seat 313 is used to install the generator 42.
  • the purpose of the motor mounting seat 313 and the connecting cylinder 314 is to install the speed-increasing power generation unit 4, so that the speed-increasing power generation unit 4 can be stably installed on the body of the wind turbine frame. And the connection effect with the driving gear ring 21 is better.
  • the support seat 31 further includes a support ring 315, which is sleeved and fixedly connected to the outside of the connecting cylinder 314.
  • a plurality of mounting holes 312 are arranged in an axial annular array on the support ring 315.
  • Each speed-increasing power generation unit 4 includes a secondary transmission structure 41 and a generator 42. The purpose is to further support the secondary transmission structure 41.
  • auxiliary transmission structure 41 is connected to the main transmission structure 2 , and a second end of the auxiliary transmission structure 41 is connected to the generator 42 .
  • the auxiliary transmission structure 41 includes a driven gear 411, a coupling 412 and a speed increasing gear
  • the driven gear 411 is meshed with the transmission gear 213 , and the driven gear 411 is connected to the speed increasing gear box 413 through the coupling 412 , and the speed increasing gear box 413 is connected to the generator 42 .
  • the auxiliary transmission structure 41 is a driven gear 411, a coupling 412 and a speed-increasing gearbox 413, but is not limited to other fasteners and connecting parts used for its connection.
  • the cancellation of the speed-increasing gearbox 413 or the direct integration of the speed-increasing gearbox 413 and the generator 42 is also included in the present invention.
  • a coupling 412 is installed between the speed-increasing gearbox 412 and the driven gear 411.
  • the purpose of installing the coupling 412 is to eliminate the influence of the unstable output of the driving end on the speed-increasing gearbox 413 and the generator 42.
  • the coupling 412 can adopt elastic couplings such as ball couplings, gear drum couplings, and spring couplings.
  • the cancellation of the coupling 412 or the integration of it with the front driven gear 411 and the rear end is also included in the present invention.
  • the coupling can be installed before or after the speed-increasing gearbox 413 according to needs.
  • the impeller hub 1 drives each driven gear 411 of the auxiliary transmission structure 41 to rotate axially through the main transmission structure 2, and the auxiliary transmission structure 41 drives the generator 42 to generate electricity.
  • the semi-direct-drive wind turbine generator set has the advantages of both the direct-drive unit and the doubly-fed unit. Specifically, compared with the doubly-fed wind turbine generator set, the semi-direct-drive wind turbine generator set has no high-speed gearbox failure and less maintenance than the medium-speed permanent magnet unit. Compared with the direct-drive wind turbine generator set, the semi-direct-drive wind turbine generator set can improve the driving efficiency of the generator drive chain through the speed-increasing gearbox. Therefore, in the process of the development of wind turbine generator sets towards large-scale, the development of semi-direct-drive unit technology has been continuously favored. Therefore, the generator 42 is preferably a permanent magnet generator, and of course a doubly-fed generator can also be used.
  • the speed-increasing power generation unit 4 is formed into multiple units, the first end of the main transmission structure 2 is connected to the blade wheel hub 1, the second end of the main transmission structure 2 rotates with the support structure 3, and multiple speed-increasing power generation units 4 are arranged on the support structure 3.
  • the speed-increasing power generation unit 4 includes a secondary transmission structure 41 and a generator 42.
  • the main transmission structure 2 cooperates with the secondary transmission structure 3 to convert wind power into electricity of multiple speed-increasing power generation units 4.
  • the unitized generator 4 has a lower manufacturing cost. Compared with the existing design, there are very few common parts between generators of different megawatts, and the frequency is required.
  • the invention can match the required power generation by increasing or decreasing the number of speed-increasing power generation units.
  • During processing only speed-increasing power generation units of the same specifications need to be set, which is convenient for large-scale manufacturing and use, and is conducive to reducing costs, greatly reducing the difficulty of maintenance and reducing maintenance costs. It is convenient to directly use replacement technology to replace damaged or repaired units, which greatly improves its durability.
  • first and second are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
  • a feature defined as “first” or “second” may explicitly or implicitly include one or more of the features.
  • the meaning of “plurality” is two or more, unless otherwise clearly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.
  • installed can be a fixed connection, a detachable connection, or an integral connection
  • it can be a mechanical connection or an electrical connection
  • it can be a direct connection or an indirect connection through an intermediate medium
  • it can be the internal connection of two elements or the interaction relationship between two elements.
  • first feature when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.
  • first feature when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature.
  • first feature when a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.
  • the terms “one embodiment”, “some embodiments”, “embodiment”, “example”, “specific example” or “some examples” refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example included in at least one embodiment or example of the present invention.
  • the schematic expressions of the above terms are not used herein. The same embodiment or example must be used.
  • the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
  • those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

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Abstract

A megawatt-class wind power generating set, which comprises: a blade hub (1), a primary transmission structural member (2), a supporting structural member (3), and a plurality of speed-increasing power generating units (4); the blade hub (1) is fixedly connected to one side of the primary transmission structural member (2), and the primary transmission structural member (2) is connected to the plurality of speed-increasing power generating units (4); the plurality of speed-increasing power generating units (4) are arranged on the supporting structural member (3) along the axial direction of the supporting structural member (3), and one end of the primary transmission structural member (2) is connected to the supporting structural member (3) and can rotate relative to the supporting structural member (3); the speed-increasing power generating units (4) comprise a secondary transmission structural member (41) and a generator (42); the secondary transmission structural member (41) and the primary transmission structural member (2) are connected, and the secondary transmission structural member (41) is connected to the generator (42); and the blade hub (1) drives the secondary transmission structural member (41) to rotate by means of the primary transmission structural member (2). The invention allows for increasing or decreasing the number of speed-increasing power generating units according to the amount of power generation required.

Description

一种用于兆瓦级的风力发电机组A megawatt-class wind turbine generator set 技术领域Technical Field
本发明涉及风力发电机组技术领域，尤其涉及一种用于兆瓦级的风力发电机组。The present invention relates to the technical field of wind turbine generator sets, and in particular to a megawatt-class wind turbine generator set.
背景技术Background technique
风力发电机一般由直驱、双馈和半直驱三种形式。在风力发电机中，由叶桨轮毂到发电机前端的部件总称为发电机驱动链。直驱式风力发电机的驱动链主要为轮毂、主轴和主轴轴承，通过主轴的一端直接与轮毂相连，主轴轴承套设于主轴的外部，主轴轴承的内圈随着主轴转动，主轴轴承的外圈和塔架固定连接，主轴的另一端与永磁发电机相连，由风能带动叶桨轮毂通过主轴直接驱动一台永磁发电机产生电能。现有的双馈式和半驱动式风力发电机的驱动链主要为轮毂、主轴、主轴轴承和增速齿轮箱，通过在主轴和双馈发电机或者永磁发电机之间设置增速齿轮箱，通过增速齿轮箱提高风力的转速进而提高风力的转化效率。双馈式风力发电机或者半驱动式风力发电机均由风能带动带叶桨轮毂通过主轴驱动增速齿轮箱，双馈式风力发电机再通过增速齿轮箱带动一台双馈发电机产生电能，半驱动式风力发电机的增速齿轮箱带动一台永磁发电机产生电能。Wind turbines are generally divided into three types: direct drive, doubly fed and semi-direct drive. In a wind turbine, the components from the blade hub to the front end of the generator are collectively referred to as the generator drive chain. The drive chain of a direct-drive wind turbine mainly consists of a hub, a main shaft and a main shaft bearing. One end of the main shaft is directly connected to the hub. The main shaft bearing is sleeved on the outside of the main shaft. The inner ring of the main shaft bearing rotates with the main shaft. The outer ring of the main shaft bearing is fixedly connected to the tower. The other end of the main shaft is connected to the permanent magnet generator. The wind energy drives the blade hub to directly drive a permanent magnet generator through the main shaft to generate electricity. The drive chain of existing doubly fed and semi-driven wind turbines mainly consists of a hub, a main shaft, a main shaft bearing and a speed-increasing gearbox. By setting a speed-increasing gearbox between the main shaft and the doubly fed generator or the permanent magnet generator, the speed of the wind is increased by the speed-increasing gearbox, thereby improving the conversion efficiency of the wind. Doubly-fed wind turbines or semi-driven wind turbines are driven by wind energy to drive the bladed paddle wheel hub through the main shaft to drive the speed-increasing gearbox. The doubly-fed wind turbine then drives a doubly-fed generator through the speed-increasing gearbox to generate electricity. The speed-increasing gearbox of the semi-driven wind turbine drives a permanent magnet generator to generate electricity.
随着风力发电机组的发电量的不断增加，相应地对于风力发电机的传动部件的要求也不断地提高，所以上述三种风力传动的技术路线均面临挑战。对于大兆瓦直驱式的风力发电机组的主要问题体现在均为：由于发电量的要求增大，导致发电机相应地尺寸和重量巨大，其主轴轴承、直驱电机过大均极难制造。对于大兆瓦的双馈式和半驱动式的风力发电机组也存在主轴轴承、发电机、增速箱制造困难的问题。同时，现有***在不同兆瓦级的风力发电机间，主轴、增速箱和发电机几乎没有通用部件，给生产和维护均增加了难度。在设备发生故障特点是发电机故障 时，现有风机中发电机***由于体积庞大，几乎难以现场维修。As the power generation of wind turbines continues to increase, the requirements for the transmission components of wind turbines are also constantly increasing, so the above three technical routes of wind transmission are facing challenges. The main problems for large-megawatt direct-drive wind turbines are: due to the increase in power generation requirements, the size and weight of the generator are huge, and its main shaft bearings and direct-drive motors are too large and extremely difficult to manufacture. For large-megawatt doubly-fed and semi-driven wind turbines, there are also problems with the difficulty of manufacturing main shaft bearings, generators, and speed increasers. At the same time, the existing system has almost no common parts in the main shaft, speed increaser, and generator between wind turbines of different megawatt levels, which increases the difficulty of production and maintenance. The characteristic of the equipment failure is the generator failure At the same time, the generator system in the existing wind turbine is almost difficult to repair on site due to its large size.
发明内容Summary of the invention
(一)要解决的技术问题1. Technical issues to be resolved
鉴于现有技术的上述缺点、不足，本发明提供一种用于兆瓦级的风力发电机组，其电机和增速箱部分采用了单元化设计，解决了现有大兆瓦风机难以设计制造维护的问题，提高了设备通过用部件的数量，降低了维护难度，便于设备故障时进行单元化替换维修。In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a megawatt-class wind turbine generator set, whose motor and speed increaser part adopt a unitized design, which solves the problem that existing large-megawatt wind turbines are difficult to design, manufacture and maintain, increases the number of parts used in the equipment, reduces the difficulty of maintenance, and facilitates unitized replacement and repair when the equipment fails.
(二)技术方案(II) Technical solution
为了达到上述目的，本发明采用的主要技术方案包括：In order to achieve the above object, the main technical solutions adopted by the present invention include:
一种用于兆瓦级的风力发电机组，包括叶桨轮毂、主传动结构件、支撑结构件和多个增速发电单元；A megawatt-class wind turbine generator set includes a blade hub, a main transmission structure, a supporting structure, and a plurality of speed-increasing power generation units;
所述叶桨轮毂与所述主传动结构件的一侧固定连接，所述主传动结构件与多个所述增速发电单元相连；The impeller hub is fixedly connected to one side of the main transmission structure, and the main transmission structure is connected to a plurality of the speed-increasing power generation units;
多个所述增速发电单元沿所述支撑结构件的轴向设置于所述支撑结构件上，所述主传动结构件的一端连接于所述支撑结构件并能够相对于所述支撑结构件转动；A plurality of the speed-increasing power generation units are arranged on the support structure along the axial direction of the support structure, and one end of the main transmission structure is connected to the support structure and can rotate relative to the support structure;
每个所述增速发电单元均包括副传动结构件和发电机；Each of the speed-increasing power generation units comprises a secondary transmission structure and a generator;
所述副传动结构件的第一端和所述主传动结构件相连，所述副传动结构件的第二端与所述发电机相连；The first end of the auxiliary transmission structure is connected to the main transmission structure, and the second end of the auxiliary transmission structure is connected to the generator;
所述叶桨轮毂通过所述主传动结构件带动所述副传动结构件转动，所述副传动结构件带动所述发电机发电。The impeller hub drives the auxiliary transmission structure to rotate through the main transmission structure, and the auxiliary transmission structure drives the generator to generate electricity.
可选地，所述主传动结构件包括驱动齿圈和主轴；Optionally, the main transmission structure includes a driving ring gear and a main shaft;
所述驱动齿圈沿其内侧壁周向设有传动齿，所述传动齿与所述副传动结构件的第一端相啮合，所述主轴的第一端与驱动齿圈同轴固定连接，所述主轴的第二端相对于所述支撑结构件转动。The driving gear ring is provided with transmission teeth along the circumference of its inner side wall, and the transmission teeth are meshed with the first end of the auxiliary transmission structure. The first end of the main shaft is coaxially fixedly connected with the driving gear ring, and the second end of the main shaft rotates relative to the supporting structure.
可选地，所述驱动齿圈与所述主轴的直径比为:。Optionally, the diameter ratio of the drive ring gear to the main shaft is:.
可选地，所述驱动齿圈为一端封闭的筒状结构，所述驱动齿圈包括 筒状侧壁和盘式端盖；Optionally, the driving gear ring is a cylindrical structure with one end closed, and the driving gear ring includes Cylindrical sidewalls and disc-type end caps;
所述盘式端盖可拆卸连接于所述叶桨轮毂上，所述传动齿开设于所述筒状侧壁的内部；The disc-type end cover is detachably connected to the impeller hub, and the transmission gear is arranged inside the cylindrical side wall;
所述盘式端盖与所述主轴相连。The disc-type end cover is connected to the main shaft.
可选地，所述盘式端盖上开设有多个减重孔。Optionally, a plurality of weight-reducing holes are provided on the disc-type end cover.
可选地，所述副传动结构件包括从动齿轮、联轴器和增速齿轮箱；Optionally, the auxiliary transmission structure includes a driven gear, a coupling and a speed increasing gear box;
所述从动齿轮与所述传动齿相啮合，所述从动齿轮通过所述联轴器与所述增速齿轮箱相连，所述增速齿轮箱与所述发电机相连。The driven gear is meshed with the transmission teeth, the driven gear is connected to the speed increasing gear box through the coupling, and the speed increasing gear box is connected to the generator.
可选地，所述支撑结构件包括沿所述主轴径向向外延伸设置的支撑座，所述支撑座具有一个中心通孔和多个安装孔；Optionally, the supporting structure comprises a supporting seat extending radially outwardly along the main axis, and the supporting seat has a central through hole and a plurality of mounting holes;
所述中心通孔用于插接所述主轴；The central through hole is used for plugging the main shaft;
多个所述安装孔能够可拆卸安装对应的增速发电单元。The plurality of mounting holes can be used to detachably mount corresponding speed-increasing power generation units.
可选地，所述支撑座包括电机安装座和连接筒体；Optionally, the support seat includes a motor mounting seat and a connecting cylinder;
所述中心通孔沿所述连接筒体的轴向方向开设，所述电机安装座呈环状结构，所述电机安装座设置于所述连接筒体的一端部，所述电机安装座用于安装所述发电机。The central through hole is opened along the axial direction of the connecting cylinder. The motor mounting seat is an annular structure. The motor mounting seat is arranged at one end of the connecting cylinder. The motor mounting seat is used to mount the generator.
可选地，所述支撑座还包括支撑环，所述支撑环套设并固定连接所述连接筒体的外部；Optionally, the support seat further comprises a support ring, and the support ring is sleeved and fixedly connected to the outside of the connecting cylinder;
多个所述安装孔沿所述支撑环的轴向环状阵列开设于所述所述支撑环上。A plurality of mounting holes are arranged on the support ring in an axial ring array along the support ring.
可选地，所述主轴与所述连接筒体之间设置主轴轴承，所述主轴轴承套设于所述主轴上。Optionally, a main shaft bearing is arranged between the main shaft and the connecting cylinder, and the main shaft bearing is sleeved on the main shaft.
(三)有益效果(III) Beneficial effects
本发明的有益效果是：本发明的一种用于兆瓦级的风力发电机组，通过主传动结构件的第一端与叶桨轮毂相连，主传动结构件的第二端与支撑结构件相转动，支撑结构件上设置有多个增速发电单元，增速发电单元包括副传动结构件和发电机，再经过主传动结构件与副传动结构件 相配合，以将风力转换成多个增速发电单元的电力，发电机的单元化制造成本更低。相较于现有设计中在不同兆瓦间的发电机间通用部件极少，本发明能够通过增加或减少增速发电单元的设置数量来满足不同型号风力机的发电需求便于大规模制造和使用，有利于降低成本，极大降低维修难度降低维护成本，便于直接使用更换技术对损坏或需要维修的单元进行更换替代，大大的提高了工程效率。The beneficial effects of the present invention are as follows: a megawatt-class wind turbine generator set of the present invention is connected to a blade hub through a first end of a main transmission structure, a second end of the main transmission structure rotates with a supporting structure, a plurality of speed-increasing power generation units are arranged on the supporting structure, the speed-increasing power generation units include a secondary transmission structure and a generator, and then the main transmission structure and the secondary transmission structure are connected to the blade hub, and the second end of the main transmission structure rotates with the supporting structure, and a plurality of speed-increasing power generation units are arranged on the supporting structure, and the speed-increasing power generation units include a secondary transmission structure and a generator. The unitized manufacturing cost of the generator is lower. Compared with the existing design in which there are very few common parts between generators of different megawatts, the present invention can meet the power generation needs of wind turbines of different models by increasing or decreasing the number of speed-up power generation units, which is convenient for large-scale manufacturing and use, and is conducive to reducing costs, greatly reducing the difficulty of maintenance and reducing maintenance costs, and facilitating the direct use of replacement technology to replace damaged or repaired units, greatly improving engineering efficiency.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明的用于兆瓦级的风力发电机组的整体立体示意图；FIG1 is an overall three-dimensional schematic diagram of a megawatt-class wind turbine generator set according to the present invention;
图2为图1的侧面剖面结构示意图；FIG2 is a schematic diagram of the side cross-sectional structure of FIG1 ;
图3为图1的增速发电单元的结构示意图FIG. 3 is a schematic diagram of the structure of the speed-increasing power generation unit of FIG. 1
图4为图1的主传动结构件的立体结构示意图；FIG4 is a schematic diagram of the three-dimensional structure of the main transmission structure of FIG1 ;
图5为图1的支撑结构件的立体结构示意图。FIG. 5 is a schematic diagram of the three-dimensional structure of the supporting structure of FIG. 1 .
【附图标记说明】
1：叶桨轮毂；2：主传动结构件；21：驱动齿圈；211：筒状侧壁；
212：盘式端盖；213：传动链条；22：主轴；3：支撑结构件；31：支撑座；311：中心通孔；312：安装孔；313：电机安装座；314：连接筒体；315：支撑环；4：增速发电单元；41：副传动结构件；411：从动齿轮；、412：联轴器；413：增速齿轮箱；42：发电机；5：主轴轴承。[Description of Reference Numerals]
1: propeller hub; 2: main transmission structure; 21: driving gear ring; 211: cylindrical side wall;
212: disc end cover; 213: transmission chain; 22: main shaft; 3: supporting structure; 31: support seat; 311: center through hole; 312: mounting hole; 313: motor mounting seat; 314: connecting cylinder; 315: support ring; 4: speed-increasing power generation unit; 41: auxiliary transmission structure; 411: driven gear; 412: coupling; 413: speed-increasing gear box; 42: generator; 5: main shaft bearing.
具体实施方式Detailed ways
为了更好的解释本发明，以便于理解，下面结合附图，通过具体实施方式，对本发明作详细描述。其中，本文所提及的“上”、“下”、“左”、“右”、“内”和“外”等方位名词以图1的定向为参照。将叶片轮毂1所在的一端定义为“前”端。In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific embodiments. The directional terms such as "upper", "lower", "left", "right", "inner" and "outer" mentioned herein are based on the orientation of Figure 1. The end where the blade hub 1 is located is defined as the "front" end.
参见图1-5所示，本发明实施例提出一种用于兆瓦级的风力发电机组，该风力发电组能够适用于半直驱式和双馈式的兆瓦级风力发电机组。包括叶桨轮毂1、主传动结构件2、支撑结构件3和多个增速发电单元4。 1-5 , an embodiment of the present invention provides a megawatt-class wind turbine generator set, which can be applicable to semi-direct drive and doubly fed megawatt-class wind turbine generator sets, including a blade hub 1 , a main transmission structure 2 , a support structure 3 and a plurality of speed-increasing power generation units 4 .
其中，叶桨轮毂1与主传动结构件2的一侧固定连接。主传动结构件2与多个增速发电单元4相连。The impeller hub 1 is fixedly connected to one side of the main transmission structure 2. The main transmission structure 2 is connected to a plurality of speed-increasing power generation units 4.
进一步地，主传动结构件2包括驱动齿圈21和主轴22。驱动齿圈21沿其内侧壁周向设有传动齿213，传动齿213与增速发电单元4的副传动结构件41的第一端相啮合，主轴22的第一端与驱动齿圈21同轴固定连接，主轴22的第二端相对于支撑结构件3转动。Furthermore, the main transmission structure 2 includes a driving gear ring 21 and a main shaft 22. The driving gear ring 21 is provided with transmission teeth 213 along the circumference of its inner side wall, and the transmission teeth 213 are meshed with the first end of the auxiliary transmission structure 41 of the speed-increasing power generation unit 4, and the first end of the main shaft 22 is coaxially fixedly connected with the driving gear ring 21, and the second end of the main shaft 22 rotates relative to the supporting structure 3.
在本实施例中，主传动结构件2采用驱动齿圈21，驱动齿圈21便于加工和成型，而且安装方便，与主轴22一体成型地设置。另外，驱动齿圈21与副传动结构件41相啮合传动效果更佳。In this embodiment, the main transmission structure 2 adopts a driving gear ring 21, which is easy to process and shape, and is easy to install, and is integrally formed with the main shaft 22. In addition, the driving gear ring 21 meshes with the auxiliary transmission structure 41 to achieve a better transmission effect.
需要说明的是，为了配合增速发电单元4的组成，主传动结构件2的驱动齿圈21是本实施例中主要的关键部件，驱动齿圈21与主轴22直接相连。工作时由叶桨轮毂1传递的扭矩直接传递到驱动齿圈21上，驱动齿圈21直接驱动副传动结构件41的从动齿轮411工作，主轴22不承担主要扭矩，主要负责承载由叶桨轮毂1产生及传递的弯矩、径向和轴向载荷。主轴22承受的弯矩、径向和轴向载荷通过主轴轴承5传递到静止的支撑座31上。由于主轴22不承受扭矩，仅承受弯矩、径向和轴向载荷可以大大缩小主轴22的直径，降低主轴22的制作成本以及降低加工和安装的难度。It should be noted that, in order to match the composition of the speed-increasing power generation unit 4, the drive ring gear 21 of the main transmission structure 2 is the main key component in this embodiment, and the drive ring gear 21 is directly connected to the main shaft 22. During operation, the torque transmitted by the blade hub 1 is directly transmitted to the drive ring gear 21, and the drive ring gear 21 directly drives the driven gear 411 of the auxiliary transmission structure 41 to work. The main shaft 22 does not bear the main torque, but is mainly responsible for bearing the bending moment, radial and axial loads generated and transmitted by the blade hub 1. The bending moment, radial and axial loads borne by the main shaft 22 are transmitted to the stationary support seat 31 through the main shaft bearing 5. Since the main shaft 22 does not bear torque, but only bears bending moment, radial and axial loads, the diameter of the main shaft 22 can be greatly reduced, the manufacturing cost of the main shaft 22 can be reduced, and the difficulty of processing and installation can be reduced.
进一步地，驱动齿圈21与主轴22的直径比为3:1。由此一来，驱动齿圈21的直径远大于主轴22，那么可以再适应大兆瓦的风力发电机组的前提下，缩小了主轴22的直径。进一步地，主轴22与连接筒体314之间设置主轴轴承5，主轴轴承5套设于主轴22上。由于主轴22承载扭矩低，轴径缩小，可使用小尺寸主轴轴承5，设计更加灵活，本实施例中主轴轴承5包括但不限于滚动轴承、滑动轴承和永磁复合轴承、电磁悬浮轴承等形式。多种的轴承选择更有利于进一步降低轴承的使用成本，提高轴承的可靠性和工作寿命。以上为基座的主要结构但不限于对基座进行轻量化设计，或结构强度加强的其他改善。 Furthermore, the diameter ratio of the driving gear ring 21 to the main shaft 22 is 3:1. As a result, the diameter of the driving gear ring 21 is much larger than the main shaft 22, so the diameter of the main shaft 22 can be reduced under the premise of adapting to large-megawatt wind turbines. Furthermore, a main shaft bearing 5 is arranged between the main shaft 22 and the connecting cylinder 314, and the main shaft bearing 5 is sleeved on the main shaft 22. Since the main shaft 22 has a low load-bearing torque and a reduced shaft diameter, a small-sized main shaft bearing 5 can be used, and the design is more flexible. In this embodiment, the main shaft bearing 5 includes but is not limited to rolling bearings, sliding bearings, permanent magnet composite bearings, electromagnetic suspension bearings and the like. A variety of bearing options are more conducive to further reducing the use cost of bearings and improving the reliability and service life of bearings. The above is the main structure of the base but is not limited to lightweight design of the base or other improvements to enhance structural strength.
在本实施例中，驱动齿圈21为一端封闭的筒状结构，驱动齿圈21包括筒状侧壁211和盘式端盖212。In this embodiment, the driving gear ring 21 is a cylindrical structure with one end closed, and the driving gear ring 21 includes a cylindrical side wall 211 and a disc-shaped end cover 212 .
盘式端盖212可拆卸连接于叶桨轮毂1上，传动齿213开设于筒状侧壁211的内部；The disc-shaped end cover 212 is detachably connected to the impeller hub 1, and the transmission gear 213 is provided inside the cylindrical side wall 211;
盘式端盖212与主轴22相连。进一步地，盘式端盖212上开设有多个减重孔。The disc-type end cover 212 is connected to the main shaft 22. Further, the disc-type end cover 212 is provided with a plurality of weight-reducing holes.
多个增速发电单元4沿支撑结构件3的轴向设置于支撑结构件3上，主传动结构件2的一端连接于支撑结构件3并能够相对于支撑结构件3转动；A plurality of speed-increasing power generation units 4 are arranged on the supporting structure 3 along the axial direction of the supporting structure 3, and one end of the main transmission structure 2 is connected to the supporting structure 3 and can rotate relative to the supporting structure 3;
进一步地，支撑结构件3包括沿主轴22径向向外延伸设置的支撑座31，支撑座31具有一个中心通孔311和多个安装孔312。中心通孔311用于插接主轴22。多个安装孔312能够可拆卸安装对应的增速发电单元4。Furthermore, the support structure 3 includes a support seat 31 extending radially outwardly along the main shaft 22, and the support seat 31 has a central through hole 311 and a plurality of mounting holes 312. The central through hole 311 is used to plug the main shaft 22. The plurality of mounting holes 312 can detachably mount the corresponding speed-increasing power generation unit 4.
进一步地，支撑座31包括电机安装座313和连接筒体314。中心通孔311沿连接筒体314的轴向方向开设，且主轴22***连接筒体314内，且通过主轴轴承5相对于连接筒体314转动。电机安装座313呈环状结构，电机安装座313设置于连接筒体314的一端部，电机安装座313用于安装发电机42。电机安装座313和连接筒体314设置的目的是为了安装增速发电单元4，以使增速发电单元4稳定安装于风力发电机机架的本体上。而且与驱动齿圈21的连接效果更好。Furthermore, the support seat 31 includes a motor mounting seat 313 and a connecting cylinder 314. The central through hole 311 is opened along the axial direction of the connecting cylinder 314, and the main shaft 22 is inserted into the connecting cylinder 314, and rotates relative to the connecting cylinder 314 through the main shaft bearing 5. The motor mounting seat 313 is an annular structure, and the motor mounting seat 313 is arranged at one end of the connecting cylinder 314. The motor mounting seat 313 is used to install the generator 42. The purpose of the motor mounting seat 313 and the connecting cylinder 314 is to install the speed-increasing power generation unit 4, so that the speed-increasing power generation unit 4 can be stably installed on the body of the wind turbine frame. And the connection effect with the driving gear ring 21 is better.
进一步地，支撑座31还包括支撑环315，支撑环315套设并固定连接连接筒体314的外部。多个安装孔312沿支撑环315的轴向环状阵列开设于支撑环315上。每个增速发电单元4均包括副传动结构件41和发电机42。目的是为了进一步地支撑副传动结构件41。Furthermore, the support seat 31 further includes a support ring 315, which is sleeved and fixedly connected to the outside of the connecting cylinder 314. A plurality of mounting holes 312 are arranged in an axial annular array on the support ring 315. Each speed-increasing power generation unit 4 includes a secondary transmission structure 41 and a generator 42. The purpose is to further support the secondary transmission structure 41.
进一步地，副传动结构件41的第一端和主传动结构件2相连，副传动结构件41的第二端与发电机42相连。Furthermore, a first end of the auxiliary transmission structure 41 is connected to the main transmission structure 2 , and a second end of the auxiliary transmission structure 41 is connected to the generator 42 .
具体地，副传动结构件41包括从动齿轮411、联轴器412和增速齿 轮箱413。从动齿轮411与传动齿213相啮合，从动齿轮411通过联轴器412与增速齿轮箱413相连，增速齿轮箱413与发电机42相连。Specifically, the auxiliary transmission structure 41 includes a driven gear 411, a coupling 412 and a speed increasing gear The driven gear 411 is meshed with the transmission gear 213 , and the driven gear 411 is connected to the speed increasing gear box 413 through the coupling 412 , and the speed increasing gear box 413 is connected to the generator 42 .
需要说明的是，增速发电单元4的基本组成为副传动结构件41和发电机42。副传动结构件41为从动齿轮411、联轴器412和增速齿轮箱413，但不限于用于其连接的其他紧固件和连接部件，取消增速齿轮箱413或将增速齿轮箱413和发电机42直接一体化设计也包含在本发明内。在增速齿轮箱412和从动齿轮411之间安装有联轴器412，安装联轴器412的目的是为了消除驱动端不稳定输出对增速齿轮箱413和发电机42的影响，联轴器412可采用滚珠联轴器、齿鼓联轴器、簧片联轴器等弹性联轴器，取消该联轴器412或将其与前从动齿轮411和后端连接一体化设计也包含在本发明中。联轴器可根据需求安装在增速齿轮箱413之前或之后。It should be noted that the basic components of the speed-increasing power generation unit 4 are the auxiliary transmission structure 41 and the generator 42. The auxiliary transmission structure 41 is a driven gear 411, a coupling 412 and a speed-increasing gearbox 413, but is not limited to other fasteners and connecting parts used for its connection. The cancellation of the speed-increasing gearbox 413 or the direct integration of the speed-increasing gearbox 413 and the generator 42 is also included in the present invention. A coupling 412 is installed between the speed-increasing gearbox 412 and the driven gear 411. The purpose of installing the coupling 412 is to eliminate the influence of the unstable output of the driving end on the speed-increasing gearbox 413 and the generator 42. The coupling 412 can adopt elastic couplings such as ball couplings, gear drum couplings, and spring couplings. The cancellation of the coupling 412 or the integration of it with the front driven gear 411 and the rear end is also included in the present invention. The coupling can be installed before or after the speed-increasing gearbox 413 according to needs.
叶桨轮毂1通过主传动结构件2带动副传动结构件41的每个从动齿轮411其自身的轴向转动，副传动结构件41带动发电机42发电。The impeller hub 1 drives each driven gear 411 of the auxiliary transmission structure 41 to rotate axially through the main transmission structure 2, and the auxiliary transmission structure 41 drives the generator 42 to generate electricity.
需要说明的是，半直驱风力发电机组兼具直驱机组和双馈机组的优势，具体地，半直驱风力发电机组相比双馈风力发电机组，中速永磁机组相比双馈型风机，无高速齿轮箱的高速级故障、较少的维护量。半直驱风力发电机组相比直驱风力发电机组，能够通过增速齿轮箱提高发电机驱动链的驱动效率。因此，在风力发电机组向大型化发展过程中，半直驱机组技术发展不断受到青睐。因此，发电机42优选为永磁发电机，当然也可采用双馈发电机。It should be noted that the semi-direct-drive wind turbine generator set has the advantages of both the direct-drive unit and the doubly-fed unit. Specifically, compared with the doubly-fed wind turbine generator set, the semi-direct-drive wind turbine generator set has no high-speed gearbox failure and less maintenance than the medium-speed permanent magnet unit. Compared with the direct-drive wind turbine generator set, the semi-direct-drive wind turbine generator set can improve the driving efficiency of the generator drive chain through the speed-increasing gearbox. Therefore, in the process of the development of wind turbine generator sets towards large-scale, the development of semi-direct-drive unit technology has been continuously favored. Therefore, the generator 42 is preferably a permanent magnet generator, and of course a doubly-fed generator can also be used.
另外，将增速发电单元4形成多个，主传动结构件2的第一端与叶桨轮毂1相连，主传动结构件2的第二端与支撑结构件3相转动，支撑结构件3上设置有多个增速发电单元4，增速发电单元4包括副传动结构件41和发电机42，再经过主传动结构2件与副传动结构件3相配合，以将风力转换成多个增速发电单元4的电力，发电机的单元化4制造成本更低。相较于现有设计中在不同兆瓦间的发电机间通用部件极少，需频 繁更换发电机和增速齿轮等驱动链，本发明能够通过增加或减少增速发电单元的设置数量来匹配所需要的发电量。加工时，仅需要设置相同规格的增速发电单元即可，便于大规模制造和使用，有利于降低成本，极大降低维修难度降低维护成本，便于直接使用更换技术对损坏或需要维修的单元进行更换替代，大大的提高了其耐用性。In addition, the speed-increasing power generation unit 4 is formed into multiple units, the first end of the main transmission structure 2 is connected to the blade wheel hub 1, the second end of the main transmission structure 2 rotates with the support structure 3, and multiple speed-increasing power generation units 4 are arranged on the support structure 3. The speed-increasing power generation unit 4 includes a secondary transmission structure 41 and a generator 42. The main transmission structure 2 cooperates with the secondary transmission structure 3 to convert wind power into electricity of multiple speed-increasing power generation units 4. The unitized generator 4 has a lower manufacturing cost. Compared with the existing design, there are very few common parts between generators of different megawatts, and the frequency is required. The invention can match the required power generation by increasing or decreasing the number of speed-increasing power generation units. During processing, only speed-increasing power generation units of the same specifications need to be set, which is convenient for large-scale manufacturing and use, and is conducive to reducing costs, greatly reducing the difficulty of maintenance and reducing maintenance costs. It is convenient to directly use replacement technology to replace damaged or repaired units, which greatly improves its durability.
在本发明的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连；可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”，可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”，可以是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”，可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度低于第二特征。In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“实施例”、“示例”、“具体示例”或“一些示例”等的描述，是指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不 必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。In the description of this specification, the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms are not used herein. The same embodiment or example must be used. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行改动、修改、替换和变型。 Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims (10)

  1. 一种用于兆瓦级的风力发电机组，其特征在于，包括叶桨轮毂(1)、主传动结构件(2)、支撑结构件(3)和多个增速发电单元(4)；A megawatt-class wind turbine generator set, characterized by comprising a blade hub (1), a main transmission structure (2), a support structure (3) and a plurality of speed-increasing power generation units (4);
    所述叶桨轮毂(1)与所述主传动结构件(2)的一侧固定连接，所述主传动结构件(2)与多个所述增速发电单元(4)相连；The impeller hub (1) is fixedly connected to one side of the main transmission structure (2), and the main transmission structure (2) is connected to a plurality of speed-increasing power generation units (4);
    多个所述增速发电单元(4)沿所述支撑结构件(3)的轴向设置于所述支撑结构件(3)上，所述主传动结构件(2)的一端连接于所述支撑结构件(3)并能够相对于所述支撑结构件(3)转动；A plurality of the speed-increasing power generation units (4) are arranged on the support structure (3) along the axial direction of the support structure (3); one end of the main transmission structure (2) is connected to the support structure (3) and is rotatable relative to the support structure (3);
    每个所述增速发电单元(4)均包括副传动结构件(41)和发电机(42)；Each of the speed-increasing power generation units (4) comprises a secondary transmission structure (41) and a generator (42);
    所述副传动结构件(41)的第一端和所述主传动结构件(2)相连，所述副传动结构件(41)的第二端与所述发电机(42)相连；The first end of the auxiliary transmission structure (41) is connected to the main transmission structure (2), and the second end of the auxiliary transmission structure (41) is connected to the generator (42);
    所述叶桨轮毂(1)通过所述主传动结构件(2)带动所述副传动结构件(41)转动，所述副传动结构件(41)带动所述发电机(42)发电。The impeller hub (1) drives the auxiliary transmission structure (41) to rotate through the main transmission structure (2), and the auxiliary transmission structure (41) drives the generator (42) to generate electricity.
  2. 如权利要求1所述的用于兆瓦级的风力发电机组，其特征在于，所述主传动结构件(2)包括驱动齿圈(21)和主轴(22)；The megawatt-class wind turbine generator set according to claim 1, characterized in that the main transmission structure (2) comprises a drive ring gear (21) and a main shaft (22);
    所述驱动齿圈(21)沿其内侧壁周向设有传动齿(213)，所述传动齿(213)与所述副传动结构件(41)的第一端相啮合，所述主轴(22)的第一端与驱动齿圈(21)同轴固定连接，所述主轴(22)的第二端相对于所述支撑结构件(3)转动。The driving gear ring (21) is provided with transmission teeth (213) along the circumference of its inner side wall, and the transmission teeth (213) are meshed with the first end of the auxiliary transmission structure (41). The first end of the main shaft (22) is coaxially fixedly connected to the driving gear ring (21), and the second end of the main shaft (22) rotates relative to the supporting structure (3).
  3. 如权利要求2所述的用于兆瓦级的风力发电机组，其特征在于，所述驱动齿圈(21)与所述主轴(22)的直径比为3:1。The megawatt-class wind turbine generator set according to claim 2, characterized in that the diameter ratio of the drive gear ring (21) to the main shaft (22) is 3:1.
  4. 如权利要求3所述的用于兆瓦级的风力发电机组，其特征在于，所述驱动齿圈(21)为一端封闭的筒状结构，所述驱动齿圈(21)包括筒状侧壁(211)和盘式端盖(212)；The megawatt-class wind turbine generator set according to claim 3, characterized in that the driving gear ring (21) is a cylindrical structure with one end closed, and the driving gear ring (21) comprises a cylindrical side wall (211) and a disc-type end cover (212);
    所述盘式端盖(212)可拆卸连接于所述叶桨轮毂(1)上，所述传动齿(213)开设于所述筒状侧壁(211)的内部；The disc-type end cover (212) is detachably connected to the impeller hub (1), and the transmission teeth (213) are arranged inside the cylindrical side wall (211);
    所述盘式端盖(212)与所述主轴(22)相连。The disc-type end cover (212) is connected to the main shaft (22).
  5. 如权利要求4所述的用于兆瓦级的风力发电机组，其特征在于， 所述盘式端盖(212)上开设有多个减重孔。The megawatt-class wind turbine generator set as claimed in claim 4 is characterized in that: The disc-type end cover (212) is provided with a plurality of weight-reducing holes.
  6. 如权利要求5所述的用于兆瓦级的风力发电机组，其特征在于，所述副传动结构件(41)包括从动齿轮(411)、联轴器(412)和增速齿轮箱(413)；The megawatt-class wind turbine generator set according to claim 5, characterized in that the auxiliary transmission structure (41) comprises a driven gear (411), a coupling (412) and a speed increasing gear box (413);
    所述从动齿轮(411)与所述传动齿(213)相啮合，所述从动齿轮(411)通过所述联轴器(412)与所述增速齿轮箱(413)相连，所述增速齿轮箱(413)与所述发电机(42)相连。The driven gear (411) is meshed with the transmission gear (213), the driven gear (411) is connected to the speed-increasing gear box (413) via the coupling (412), and the speed-increasing gear box (413) is connected to the generator (42).
  7. 如权利要求6所述的用于兆瓦级的风力发电机组，其特征在于，所述支撑结构件(3)包括沿所述主轴(22)径向向外延伸设置的支撑座(31)，所述支撑座(31)具有一个中心通孔(311)和多个安装孔(312)；The megawatt-class wind turbine generator set according to claim 6, characterized in that the supporting structure (3) comprises a supporting seat (31) extending radially outward along the main shaft (22), and the supporting seat (31) has a central through hole (311) and a plurality of mounting holes (312);
    所述中心通孔(311)用于插接所述主轴(22)；The central through hole (311) is used for inserting the main shaft (22);
    多个所述安装孔(312)能够可拆卸安装对应的增速发电单元(4)。The plurality of mounting holes (312) can be used to detachably mount corresponding speed-increasing power generation units (4).
  8. 如权利要求7所述的用于兆瓦级的风力发电机组，其特征在于，所述支撑座(31)包括电机安装座(313)和连接筒体(314)；The megawatt-class wind turbine generator set according to claim 7, characterized in that the support base (31) comprises a motor mounting base (313) and a connecting cylinder (314);
    所述中心通孔(311)沿所述连接筒体(314)的轴向方向开设，所述电机安装座(313)呈环状结构，所述电机安装座(313)设置于所述连接筒体(314)的一端部，所述电机安装座(313)用于安装所述发电机(42)。The central through hole (311) is opened along the axial direction of the connecting cylinder (314); the motor mounting seat (313) is an annular structure; the motor mounting seat (313) is arranged at one end of the connecting cylinder (314); and the motor mounting seat (313) is used to mount the generator (42).
  9. 如权利要求8所述的用于兆瓦级的风力发电机组，其特征在于，所述支撑座(31)还包括支撑环(315)，所述支撑环(315)套设并固定连接所述连接筒体(314)的外部；The megawatt-class wind turbine generator set according to claim 8, characterized in that the support seat (31) further comprises a support ring (315), and the support ring (315) is sleeved and fixedly connected to the outside of the connecting cylinder (314);
    多个所述安装孔(312)沿所述支撑环(315)的轴向环状阵列开设于所述所述支撑环(315)上。A plurality of mounting holes (312) are arranged on the support ring (315) in an axial annular array along the support ring (315).
  10. 如权利要求9所述的用于兆瓦级的风力发电机组，其特征在于，所述主轴(22)与所述连接筒体(314)之间设置主轴轴承(5)，所述主轴轴承(5)套设于所述主轴(22)上。 The megawatt-class wind turbine generator set according to claim 9 is characterized in that a main shaft bearing (5) is arranged between the main shaft (22) and the connecting cylinder (314), and the main shaft bearing (5) is sleeved on the main shaft (22).
PCT/CN2023/081876 2022-12-07 2023-03-16 Megawatt-class wind power generating set WO2024119658A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619386A2 (en) * 2004-07-23 2006-01-25 Wilhelm Schäfer Transmission for high power wind generation installation
EP2031273A2 (en) * 2007-08-27 2009-03-04 General Electric Company Integrated medium-speed geared drive train
WO2011027427A1 (en) * 2009-09-02 2011-03-10 三菱重工業株式会社 Wind driven generator
CN202326028U (en) * 2011-12-02 2012-07-11 华锐风电科技(集团)股份有限公司 Multi-output wind generating set
CN113803216A (en) * 2021-10-28 2021-12-17 中国船舶重工集团海装风电股份有限公司 Wind generating set
CN115750218A (en) * 2022-12-07 2023-03-07 迈格钠磁动力股份有限公司 Wind generating set for megawatt level

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1619386A2 (en) * 2004-07-23 2006-01-25 Wilhelm Schäfer Transmission for high power wind generation installation
EP2031273A2 (en) * 2007-08-27 2009-03-04 General Electric Company Integrated medium-speed geared drive train
WO2011027427A1 (en) * 2009-09-02 2011-03-10 三菱重工業株式会社 Wind driven generator
CN202326028U (en) * 2011-12-02 2012-07-11 华锐风电科技(集团)股份有限公司 Multi-output wind generating set
CN113803216A (en) * 2021-10-28 2021-12-17 中国船舶重工集团海装风电股份有限公司 Wind generating set
CN115750218A (en) * 2022-12-07 2023-03-07 迈格钠磁动力股份有限公司 Wind generating set for megawatt level

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