CN105240216B - Improved structure of compact wind generating set - Google Patents
Improved structure of compact wind generating set Download PDFInfo
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- CN105240216B CN105240216B CN201510676002.7A CN201510676002A CN105240216B CN 105240216 B CN105240216 B CN 105240216B CN 201510676002 A CN201510676002 A CN 201510676002A CN 105240216 B CN105240216 B CN 105240216B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000012546 transfer Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 20
- 238000005461 lubrication Methods 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 239000012208 gear oil Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims 2
- 238000013461 design Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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
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- 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
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Abstract
本发明公开了一种紧凑型风力发电机组的改进结构，包括至少一个转子叶片、轮毂、齿轮箱、发电机、传动系外壳、偏航组件、机舱座，转子叶片通过变桨轴承与轮毂连接；轮毂经过风轮锁定盘和齿轮箱的前端盖，用螺栓连接到齿轮箱的转子轴承的内圈上；齿轮箱的前端法兰、转子轴承及传动系外壳布置在轮毂与机舱座之间，被设计成载荷传递部件，并经由法兰螺栓相互连接；齿轮箱和发电机布置在传动系外壳的内部；传动系外壳由螺栓连接到机舱座上，机舱座通过偏航组件的偏航轴承与风力发电机组配套的塔架进行连接。本发明的结构非常紧凑、重量轻且低成本。
The invention discloses an improved structure of a compact wind turbine generator set, comprising at least one rotor blade, a wheel hub, a gearbox, a generator, a transmission system housing, a yaw assembly, and a nacelle seat, wherein the rotor blade is connected to the wheel hub through a pitch bearing; the wheel hub is connected to the inner ring of the rotor bearing of the gearbox through a wind rotor locking plate and a front end cover of the gearbox by bolts; the front end flange of the gearbox, the rotor bearing and the transmission system housing are arranged between the wheel hub and the nacelle seat, are designed as load transfer components, and are connected to each other via flange bolts; the gearbox and the generator are arranged inside the transmission system housing; the transmission system housing is connected to the nacelle seat by bolts, and the nacelle seat is connected to the tower of the wind turbine generator set through the yaw bearing of the yaw assembly. The structure of the invention is very compact, light and low-cost.
Description
技术领域technical field
本发明涉及风力发电的技术领域，尤其是指一种紧凑型风力发电机组的改进结构。The invention relates to the technical field of wind power generation, in particular to an improved structure of a compact wind power generating set.
背景技术Background technique
业内习知，随着风力发电技术的不断发展，风力发电机组单机容量不断增大，进而其外形尺寸也不断地增大，使得其生产、运输和安装成本越来越高。新型风力发电机组结构设计中，其趋势是采用更紧凑和更轻的单元。传统型风力发电机组结构，齿轮箱以及发电机都作为主机架上的独立部件布置在轴承后面，于是这主机架就带有从转子轴承将转子载荷传给塔架的功能，轴承上的载荷就必须从轴承螺栓连接表面经由主机架引入塔架中。而为不使主机架的结构与齿轮箱和发电机相冲突，这就引起主机架结构需要在背对转子的区域中有大开口，以用于装配齿轮箱。从强度和变形的角度来看，这些敞开式结构具有很大缺点，因为各部件因此要承受很大的附加应力。而且，这些结构具有太多部件，因为这些部件的功能不同于载荷传递。因此，本设计方案的开发目标是设计更紧凑、更轻量和成本更低的风力发电机组，传动系统外壳兼做载荷传递部件。It is well known in the industry that with the continuous development of wind power generation technology, the capacity of a single unit of wind power generators continues to increase, and their dimensions also continue to increase, making their production, transportation and installation costs higher and higher. In the structural design of new wind turbines, the trend is to use more compact and lighter units. In the traditional wind turbine structure, the gearbox and the generator are arranged behind the bearings as independent components on the main frame, so the main frame has the function of transferring the rotor load from the rotor bearing to the tower, and the load on the bearing is It must be introduced into the tower from the bearing bolting surface via the main frame. In order not to interfere with the structure of the main frame with the gearbox and the generator, this leads to the need for the structure of the main frame to have large openings in the area facing away from the rotor for the assembly of the gearbox. From the point of view of strength and deformation, these open structures have great disadvantages, since the components are thus subjected to great additional stresses. Also, these structures have too many components because the functions of these components are different from load transfer. Therefore, the development goal of this design scheme is to design a more compact, lighter and lower cost wind turbine, and the drive train casing doubles as a load transfer component.
发明内容Contents of the invention
本发明的目的在于克服现有技术的不足，提供一种紧凑型风力发电机组的改进结构，实现一种非常紧凑、重量轻且低成本的总体结构，例如将转子轴承、齿轮箱的前端法兰、传动系外壳嵌入从转子到塔架的力传递装置中，同时应当确保独立部件，特别是齿轮箱和发电机，能够独立安装并且还能在维修作业时被独立处理。The purpose of the present invention is to overcome the deficiencies of the prior art, to provide an improved structure of a compact wind turbine, to achieve a very compact, lightweight and low-cost overall structure, such as the rotor bearing, the front flange of the gearbox . The drive train casing is embedded in the force transmission device from the rotor to the tower, and it should be ensured that the individual components, especially the gearbox and the generator, can be installed independently and can also be handled independently during maintenance work.
为实现上述目的，本发明所提供的技术方案为：一种紧凑型风力发电机组的改进结构，包括有至少一个转子叶片、轮毂、齿轮箱、发电机、传动系外壳、偏航组件及内置有液压、润滑、冷却综合系统的机舱座，其中，所述轮毂上装有变桨轴承，所述转子叶片通过变桨轴承与轮毂连接；所述齿轮箱采用两级行星传动，其内部集成双列圆锥滚子轴承作为转子轴承，该转子轴承的内圈与齿轮箱的前端盖连接，其外圈与齿轮箱的前端法兰及齿轮箱的外壳连接，承受叶片传递过来的所有载荷，所述齿轮箱的外壳与发电机的外壳通过法兰螺栓连接，所述齿轮箱的前端法兰上有内外两圈螺栓，内圈螺栓将齿轮箱的前端法兰、转子轴承、外壳连接到发电机的外壳上，外圈螺栓将齿轮箱的前端法兰连接到传动系外壳上，传动系外壳由螺栓连接到机舱座上，所述机舱座通过偏航组件的偏航轴承与风力发电机组配套的塔架进行连接；所述轮毂经过风轮锁定盘和齿轮箱的前端盖，用螺栓连接到转子轴承的内圈上；所述齿轮箱的前端法兰、转子轴承及传动系外壳布置在轮毂与机舱座之间，被设计成载荷传递部件，并经由法兰螺栓相互连接；所述齿轮箱和发电机布置在传动系外壳内部；所述传动系外壳被设计成用于传递最大静态和动态转子载荷的支撑结构，而齿轮箱和发电机的外壳只承受发电机的扭矩和重力。In order to achieve the above object, the technical solution provided by the present invention is: an improved structure of a compact wind power generating set, including at least one rotor blade, a hub, a gearbox, a generator, a drive train casing, a yaw assembly and a built-in The engine room seat of the hydraulic, lubrication and cooling integrated system, wherein the hub is equipped with a pitch bearing, and the rotor blades are connected to the hub through the pitch bearing; the gearbox adopts a two-stage planetary transmission, and a double-row conical The roller bearing is used as the rotor bearing. The inner ring of the rotor bearing is connected to the front cover of the gearbox, and its outer ring is connected to the front flange of the gearbox and the outer shell of the gearbox to bear all the loads transmitted by the blades. The gearbox The casing of the gearbox is connected to the casing of the generator through flange bolts. There are two inner and outer rings of bolts on the front flange of the gearbox, and the inner ring bolts connect the front flange of the gearbox, the rotor bearing, and the casing to the casing of the generator. , the outer ring bolts connect the front flange of the gearbox to the transmission shell, and the drive train shell is connected to the nacelle seat by bolts, and the nacelle seat is connected with the supporting tower of the wind turbine through the yaw bearing of the yaw assembly. connection; the hub is connected to the inner ring of the rotor bearing with bolts through the wind wheel locking disc and the front end cover of the gearbox; the front flange of the gearbox, the rotor bearing and the transmission shell are arranged between the hub and the nacelle seat The space is designed as a load transfer part and is connected to each other via flange bolts; the gearbox and the generator are arranged inside the drive train housing; the drive train housing is designed as a support for transferring the maximum static and dynamic rotor loads structure, while the casing of the gearbox and generator only bears the torque and gravity of the generator.
所述齿轮箱的前端法兰上安装有风轮锁定装置，与风轮锁定盘配合实现风力发电机组的转子锁定。A wind wheel locking device is installed on the front end flange of the gearbox, and cooperates with the wind wheel locking plate to realize the rotor locking of the wind power generating set.
所述齿轮箱的输出轴穿过中空的发电机轴，在发电机背侧与发电机的转子进行连接，发电机转子由独立的双轴承支撑，齿轮箱和发电机之间的连接集成有高速轴制动盘，与位于机舱座内的高速轴制动装置配合实现高速轴制动功能。The output shaft of the gearbox passes through the hollow generator shaft, and is connected with the rotor of the generator on the back side of the generator. The rotor of the generator is supported by independent double bearings. The connection between the gearbox and the generator is integrated with a high-speed Shaft brake disc, which cooperates with the high-speed shaft braking device located in the nacelle seat to realize the high-speed shaft braking function.
所述齿轮箱的前端法兰、传动系外壳和机舱座的前端法兰具有相同尺寸的外径；所述齿轮箱是带有同轴的主动轴和从动轴的两级行星齿轮箱，并且具有15至25的传动比，所述发电机被布置在两级行星传动的下游，具有200至400转/分的额定转速。the front flange of the gearbox, the drive train housing and the front flange of the nacelle seat have the same size outer diameter; the gearbox is a two-stage planetary gearbox with coaxial driving and driven shafts, and With a gear ratio of 15 to 25, the generator is arranged downstream of the two-stage planetary drive, with a nominal speed of 200 to 400 rpm.
所述偏航轴承带有内齿，利用四个偏航电机通过偏航减速机驱动进行偏航；所述偏航组件还包括有偏航制动器和偏航制动盘，用于提供偏航阻尼和制动。The yaw bearing has internal teeth, and is driven by four yaw motors through a yaw reducer to yaw; the yaw assembly also includes a yaw brake and a yaw brake disc for providing yaw damping and braking.
所述液压、润滑、冷却综合系统为齿轮箱、转子轴承、发电机轴承提供润滑，润滑油经由顶部管路进入齿轮箱和发电机，利用齿轮箱和发电机内部油路喷溅润滑，润滑油汇集到齿轮箱和发电机底部，经由底部回油管路返回液压、润滑、冷却综合系统的油箱内；所述液压、润滑、冷却综合系统为位于机舱座内的高速轴制动装置和偏航组件的偏航制动器及装于齿轮箱前端法兰上的风轮锁定装置提供液压压力；所述液压、润滑、冷却综合系统集成有发电机水冷系统，此系统连接两个外置冷却器，用于冷却齿轮油和发电机冷却水，外置冷却器利用支架安装在机舱座尾部；所述机舱座的顶部安装有风速风向仪支架，该支架的前支脚固定在机舱座上，后支脚固定在外置冷却器的支架上。The hydraulic, lubrication and cooling integrated system provides lubrication for the gearbox, rotor bearings and generator bearings. The lubricating oil enters the gearbox and generator through the top pipeline, and is lubricated by splashing the oil circuit inside the gearbox and generator. The lubricating oil Gather to the bottom of the gearbox and generator, and return to the oil tank of the hydraulic, lubrication, and cooling integrated system through the bottom oil return pipeline; the hydraulic, lubrication, and cooling integrated system is the high-speed shaft braking device and yaw assembly located in the cabin seat The yaw brake and the wind wheel locking device installed on the front flange of the gearbox provide hydraulic pressure; the hydraulic, lubrication and cooling integrated system is integrated with a generator water cooling system, which is connected to two external coolers for To cool gear oil and generator cooling water, the external cooler is installed at the tail of the cabin seat with a bracket; the top of the cabin seat is equipped with an anemometer bracket, the front leg of the bracket is fixed on the cabin seat, and the rear leg is fixed on the external on the cooler stand.
所述发电机采用中速永磁同步发电机，发电机的外壳与齿轮箱的外壳直径相同，齿轮箱和发电机的外壳只承受转子扭矩，不承受其他力和弯矩载荷。The generator adopts a medium-speed permanent magnet synchronous generator, and the shell diameter of the generator is the same as that of the gearbox. The shells of the gearbox and the generator only bear the torque of the rotor, and do not bear other forces and bending moment loads.
本发明与现有技术相比，具有如下优点与有益效果：Compared with the prior art, the present invention has the following advantages and beneficial effects:
1、传统型风力发电机组具有独立的齿轮箱和发电机，其机架上设置了大开口以用于安装齿轮箱，局部会产生高的应力和变形，就结构而言有很大缺点。本风力发电机组利用齿轮箱外壳和机舱座传递载荷，不会在局部产生高的应力和变形。1. Traditional wind turbines have independent gearboxes and generators, and large openings are provided on the frame for installing gearboxes. High stress and deformation will occur locally, which has great disadvantages in terms of structure. The wind power generating set utilizes the gearbox casing and the nacelle seat to transmit loads, and will not generate high stress and deformation locally.
2、本风力发电机组获得了功能元件的进一步整合，结构紧凑，体积小，重量轻，就部件而言进行了节省。2. The wind power generating set has obtained further integration of functional components, compact structure, small size, light weight, and saves parts.
3、本风力发电机组使用双列圆锥滚子轴承，其不仅吸收来自转子的推力和剪力，而且只在一个轴承位置传递弯矩，与传统的双转子轴承的支撑或者一个转子轴承和齿轮箱内部轴承的支撑结构相比，双列圆锥滚子轴承的使用获得更紧凑的传动系统。3. This wind turbine uses a double-row tapered roller bearing, which not only absorbs the thrust and shear force from the rotor, but also transmits the bending moment at only one bearing position, which is different from the traditional double-rotor bearing support or one rotor bearing and gearbox Compared with the internal bearing support structure, the use of double row tapered roller bearings obtains a more compact transmission system.
4、本风力发电机组的齿轮箱和发电机可采用立式安装，装配方便，容易保证传动系统对中精度。4. The gearbox and generator of the wind power generating set can be installed vertically, which is convenient for assembly and easy to ensure the centering accuracy of the transmission system.
5、本风力发电机组的齿轮箱和发电机紧密连接到一起，可以采用一体式集成润滑和冷却系统，系统集成度高。5. The gearbox and the generator of the wind power generating set are closely connected together, and an integrated lubrication and cooling system can be adopted, with a high degree of system integration.
6、采用单独的传动系外壳传递整机载荷，齿轮箱和发电机的外壳不作为载荷传递元件，使得齿轮箱和发电机内部零件受力简单，有利于延长齿轮箱和发电机的寿命。6. The load of the whole machine is transmitted by a separate drive train casing, and the casing of the gearbox and the generator are not used as load transmission elements, so that the internal parts of the gearbox and the generator are easily stressed, which is beneficial to prolonging the life of the gearbox and the generator.
附图说明Description of drawings
图1为本发明所述紧凑型风力发电机组的改进结构的结构示意图。Fig. 1 is a structural schematic diagram of the improved structure of the compact wind power generating set of the present invention.
图2为本发明所述紧凑型风力发电机组的改进结构的整体剖视图。Fig. 2 is an overall cross-sectional view of the improved structure of the compact wind power generating set of the present invention.
具体实施方式detailed description
下面结合具体实施例对本发明作进一步说明。The present invention will be further described below in conjunction with specific examples.
如图1和图2所示，本实施例所述的紧凑型风力发电机组的改进结构，包括有至少一个转子叶片(图中未画出)、轮毂1、齿轮箱2、发电机3、传动系外壳4、偏航组件5及内置有液压、润滑、冷却综合系统6的机舱座7。所述轮毂1上装有变桨轴承19，变桨系统与传统型风力发电机组相同，采用内齿啮合传动的电动变桨系统，利用变桨电机经由变桨齿轮箱进行驱动。轮毂1及其组件的外壁可以经受风吹、日晒、雨淋，不需要整流罩。所述转子叶片通过变桨轴承19与轮毂1连接。所述轮毂1经过风轮锁定盘8和齿轮箱2的前端盖9，用螺栓连接到齿轮箱2的转子轴承11的内圈上；所述齿轮箱2的前端法兰10、转子轴承11及传动系外壳4布置在轮毂1与机舱座7之间，被设计成载荷传递部件，并且经由法兰螺栓相互连接。所述齿轮箱2和发电机3布置在传动系外壳4的内部。齿轮箱2的前端法兰10上可安装风轮锁定装置12，与风轮锁定盘8配合实现风力发电机组的转子锁定。As shown in Figures 1 and 2, the improved structure of the compact wind power generating set described in this embodiment includes at least one rotor blade (not shown in the figure), hub 1, gearbox 2, generator 3, transmission It is the outer shell 4, the yaw assembly 5 and the cabin seat 7 with the integrated hydraulic, lubrication and cooling system 6 built in. The hub 1 is equipped with a pitch bearing 19. The pitch system is the same as that of a traditional wind power generating set. It adopts an electric pitch system with internal gear meshing transmission, and is driven by a pitch motor through a pitch gearbox. The outer wall of the wheel hub 1 and its components can withstand wind, sun and rain without fairing. The rotor blades are connected to the hub 1 through pitch bearings 19 . The hub 1 is bolted to the inner ring of the rotor bearing 11 of the gear box 2 through the wind wheel locking disc 8 and the front end cover 9 of the gear box 2; the front end flange 10 of the gear box 2, the rotor bearing 11 and the The drive train housing 4 is arranged between the hub 1 and the nacelle seat 7 , is designed as a load transfer part and is connected to each other via flange bolts. The gearbox 2 and the generator 3 are arranged inside a drive train housing 4 . A wind wheel locking device 12 can be installed on the front end flange 10 of the gearbox 2, and cooperates with the wind wheel locking disc 8 to realize the rotor locking of the wind power generating set.
所述齿轮箱2采用两级行星传动，其内部集成双列圆锥滚子轴承作为转子轴承11，该转子轴承11的内圈与齿轮箱2的前端盖9连接，其外圈与齿轮箱2的前端法兰10及齿轮箱2的外壳13连接，承受叶片传递过来的所有载荷。所述齿轮箱2的外壳13与发电机3的外壳14通过法兰螺栓连接。所述齿轮箱2的前端法兰10上有内外两圈螺栓，内圈螺栓将齿轮箱2的前端法兰10、转子轴承11、外壳13连接到发电机3的外壳14上，外圈螺栓将齿轮箱2的前端法兰10连接到传动系外壳4上，传动系外壳4由螺栓连接到机舱座7上。所述机舱座7通过偏航组件5的偏航轴承15与风力发电机组配套的塔架(图中未画出)进行连接。叶片上的载荷作用到轮毂1上，由转子轴承11传递给齿轮箱的前端法兰10，再通过传动系外壳4传递给机舱座7，进而由偏航轴承15传递给塔架，由塔架传递给地基基础。The gear box 2 adopts a two-stage planetary transmission, and a double-row tapered roller bearing is integrated inside it as a rotor bearing 11. The inner ring of the rotor bearing 11 is connected with the front end cover 9 of the gear box 2, and the outer ring is connected with the front end cover 9 of the gear box 2. The front end flange 10 is connected with the casing 13 of the gear box 2 to bear all the loads transmitted by the blades. The casing 13 of the gearbox 2 is connected to the casing 14 of the generator 3 through flange bolts. The front flange 10 of the gearbox 2 has two rings of bolts inside and outside. The inner ring bolts connect the front flange 10, the rotor bearing 11, and the casing 13 of the gearbox 2 to the casing 14 of the generator 3. The outer ring bolts connect the The front end flange 10 of the gearbox 2 is connected to the drive train housing 4 which is bolted to the nacelle seat 7 . The nacelle seat 7 is connected with the supporting tower (not shown in the figure) of the wind power generating set through the yaw bearing 15 of the yaw assembly 5 . The load on the blade acts on the hub 1, and is transmitted by the rotor bearing 11 to the front end flange 10 of the gearbox, and then transmitted to the nacelle seat 7 through the drive train casing 4, and then transmitted to the tower by the yaw bearing 15, and then transmitted by the tower Pass to the foundation foundation.
所述发电机3采用中速永磁同步发电机，发电机3的外壳14与齿轮箱2的外壳13直径大致相同，齿轮箱和发电机的外壳只承受转子扭矩，不承受其他力和弯矩载荷。齿轮箱2和发电机3置于传动系外壳4内部，使得风力发电机组轴向尺寸缩短，结构更紧凑。The generator 3 adopts a medium-speed permanent magnet synchronous generator. The housing 14 of the generator 3 is approximately the same diameter as the housing 13 of the gear box 2. The housings of the gear box and the generator only bear the rotor torque and do not bear other forces and bending moments. load. The gear box 2 and the generator 3 are placed inside the drive train casing 4, so that the axial size of the wind power generating set is shortened and the structure is more compact.
所述齿轮箱2的输出轴穿过中空的发电机轴，在发电机背侧与发电机3的转子进行连接，发电机转子由独立的双轴承支撑，齿轮箱2和发电机3之间的连接集成有高速轴制动盘，与位于机舱座7内的高速轴制动装置16配合实现高速轴制动功能。The output shaft of the gear box 2 passes through the hollow generator shaft, and is connected with the rotor of the generator 3 on the back side of the generator. The generator rotor is supported by independent double bearings. Between the gear box 2 and the generator 3 The connection is integrated with a high-speed shaft brake disc, which cooperates with the high-speed shaft braking device 16 located in the nacelle seat 7 to realize the high-speed shaft braking function.
所述传动系外壳4被设计成用于传递最大静态和动态转子载荷的支撑结构，而齿轮箱和发电机的外壳只承受发电机的扭矩和重力。而且，转子轴承11被螺栓紧固在齿轮箱2的外壳13上，并且将转子载荷传入齿轮箱2的前端法兰10中。齿轮箱2的前端法兰10将载荷传入传动系外壳4，再由传动系外壳4传入舱座7中。机舱座7再把载荷传入偏航轴承15，偏航轴承15再将载荷传入塔架。作为这种设计的结果，齿轮箱和发电机的外壳不作为载荷传递元件，使得齿轮箱2和发电机3内部零件受力简单，有利于延长齿轮箱2和发电机3的寿命。The drive train housing 4 is designed as a supporting structure for transferring the maximum static and dynamic rotor loads, while the gearbox and generator housings only bear the torque and weight of the generator. Furthermore, the rotor bearing 11 is bolted to the casing 13 of the gearbox 2 and transmits the rotor load into the front end flange 10 of the gearbox 2 . The front end flange 10 of the gear box 2 transmits the load into the transmission case 4 , and then the load is transmitted into the cabin seat 7 by the transmission case 4 . The nacelle seat 7 transmits the load to the yaw bearing 15 again, and the yaw bearing 15 transmits the load to the tower frame again. As a result of this design, the casing of the gearbox and the generator is not used as a load transfer element, so that the internal parts of the gearbox 2 and the generator 3 are easily stressed, which is beneficial to prolonging the life of the gearbox 2 and the generator 3 .
如果齿轮箱2的前端法兰10、传动系外壳4和机舱座7的前端法兰具有大致相同尺寸的外径，这种布置就特别有利。这种情形会得到非常良好的力传递，而没有任何更大的载荷转移。这会得到的状况是：齿轮箱2是带有同轴的主动轴和从动轴的两级行星齿轮箱，并且具有大约15至25的传动比；发电机3被布置在那里的下游，并且因而具有大约200至400转/分的额定转速。机舱座7还具有容纳风速风向仪单元，高速轴制动装置16，液压、润滑、冷却综合系统6的功能。This arrangement is particularly advantageous if the front flange 10 of the gearbox 2 , the drive train housing 4 and the front flange of the nacelle seat 7 have approximately the same size outer diameters. This situation results in very good force transfer without any greater load transfer. This results in the situation that the gearbox 2 is a two-stage planetary gearbox with coaxial driving and driven shafts and has a transmission ratio of about 15 to 25; the generator 3 is arranged downstream there, and It thus has a rated rotational speed of approximately 200 to 400 rpm. The cabin seat 7 also has the functions of accommodating the anemometer unit, the high-speed shaft braking device 16, and the hydraulic, lubrication and cooling comprehensive system 6.
所述齿轮箱2的前端法兰10、传动系外壳4和机舱座7被设计为可以耐受风吹日晒雨淋，不需要用于保护不受天气影响并容纳子单元的额外机舱罩。The front end flange 10 of the gearbox 2, the drive train housing 4 and the nacelle seat 7 are designed to withstand wind, sun, and rain without requiring an additional nacelle cover for protection from the weather and for housing subunits.
所述偏航轴承15带有内齿，利用四个偏航电机通过偏航减速机驱动进行偏航。偏航组件5还包括偏航制动器和偏航制动盘，用于提供偏航阻尼和制动。The yaw bearing 15 has internal teeth, and is driven by four yaw motors through a yaw reducer to yaw. The yaw assembly 5 also includes a yaw brake and a yaw brake disc for providing yaw damping and braking.
位于机舱座7内的液压、润滑、冷却综合系统6提供三方面功能：一是为齿轮箱、转子轴承、发电机轴承提供润滑，润滑油经由顶部管路进入齿轮箱和发电机，利用齿轮箱和发电机内部油路喷溅润滑，润滑油汇集到齿轮箱和发电机底部，经由底部回油管路返回液压、润滑、冷却综合系统的油箱内；二是为高速轴制动装置16和偏航制动器及风轮锁定装置12提供液压压力；三是集成发电机水冷系统，此系统连接两个外置冷却器17，用于冷却齿轮油和发电机冷却水，外置冷却器17利用支架安装在机舱座尾部。机舱座7的顶部安装有风速风向仪支架18，该支架的前支脚固定在机舱座7上，后支脚固定在外置冷却器17的支架上。The hydraulic, lubrication, and cooling integrated system 6 located in the cabin seat 7 provides three functions: one is to provide lubrication for the gearbox, rotor bearings, and generator bearings. The lubricating oil enters the gearbox and generator through the top pipeline, and utilizes the and the internal oil circuit of the generator for splash lubrication, the lubricating oil is collected at the bottom of the gearbox and the generator, and returned to the oil tank of the hydraulic, lubrication and cooling integrated system through the bottom oil return pipeline; the second is for the high-speed shaft braking device 16 and the yaw The brake and the wind wheel locking device 12 provide hydraulic pressure; the third is the integrated generator water cooling system, which is connected to two external coolers 17 for cooling gear oil and generator cooling water, and the external cooler 17 is installed on the The rear of the cabin seat. An anemometer support 18 is installed on the top of the nacelle seat 7, the front leg of this support is fixed on the nacelle seat 7, and the rear leg is fixed on the support of the external cooler 17.
以上所述之实施例子只为本发明之较佳实施例，并非以此限制本发明的实施范围，故凡依本发明之形状、原理所作的变化，均应涵盖在本发明的保护范围内。The implementation examples described above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all changes made according to the shape and principle of the present invention should be covered within the scope of protection of the present invention.
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| CN106593780A (en) * | 2016-12-30 | 2017-04-26 | 山东中车风电有限公司 | Gear case and generator integrated design transmission structure |
| CN107035621A (en) * | 2017-06-14 | 2017-08-11 | 山东中车风电有限公司 | A kind of half-direct-drive wind driven generator group transmission system |
| CN107630953B (en) * | 2017-08-14 | 2020-04-28 | 山东中车风电有限公司 | Coupling structure, transmission system and method for semi-direct drive unit |
| CN109519337A (en) * | 2018-12-05 | 2019-03-26 | 许昌许继风电科技有限公司 | A kind of wind power generating set and gear-box |
| CN111608873B (en) * | 2020-05-18 | 2025-04-15 | 明阳智慧能源集团股份公司 | Flexible wind wheel locking structure of typhoon-resistant wind turbine braking system |
| CN111608871B (en) * | 2020-05-18 | 2025-04-15 | 明阳智慧能源集团股份公司 | Flexible wind wheel locking device for typhoon-resistant wind turbine braking system |
| CN111648920B (en) * | 2020-06-23 | 2022-03-04 | 湘电风能有限公司 | An ultra-compact medium-speed permanent magnet wind turbine |
| CN112343769B (en) * | 2020-11-09 | 2021-12-07 | 浙江运达风电股份有限公司 | Automatic hub locking device and locking method thereof |
| CN112253390A (en) * | 2020-11-12 | 2021-01-22 | 江苏乃尔风电技术开发有限公司 | Wind driven generator and control device thereof |
| CN112761907B (en) * | 2021-02-02 | 2022-09-16 | 湘电风能有限公司 | Compact type generator set |
| CN115355285B (en) * | 2022-08-16 | 2025-05-23 | 上海电气风电集团股份有限公司 | Gear box, transmission chain and wind generating set |
| CN115289194B (en) * | 2022-08-16 | 2025-05-23 | 上海电气风电集团股份有限公司 | Transmission chain, wind turbine generator set and power generation method thereof |
| CN118934513B (en) * | 2024-07-23 | 2025-03-21 | 华能(临高)新能源有限公司 | Wind power generation device and method thereof |
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