CN201714599U - Process blade - Google Patents

Process blade Download PDF

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Publication number
CN201714599U
CN201714599U CN2010201935653U CN201020193565U CN201714599U CN 201714599 U CN201714599 U CN 201714599U CN 2010201935653 U CN2010201935653 U CN 2010201935653U CN 201020193565 U CN201020193565 U CN 201020193565U CN 201714599 U CN201714599 U CN 201714599U
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China
Prior art keywords
tail end
girder
process blade
main beam
blade according
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Expired - Lifetime
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CN2010201935653U
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Chinese (zh)
Inventor
王福荣
于炜东
张克良
张勤柱
韩军勇
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CRRC Shandong Co Ltd
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Jinan Railway Vehicles Equipment Co Ltd
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Priority to CN2010201935653U priority Critical patent/CN201714599U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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Abstract

The utility model discloses a process blade used for pitch tests for wind turbine generator systems. The process blade at least comprises a long column-shaped main beam, a block-up seat, a long column-shaped extension beam and a tail end counterbalance body, wherein one end of the block-up seat is connected with a pitch control bearing, and the other end of the block-up seat is connected to the end part of the main beam; the column-shaped extension beam is connected to the tail end of the main beam; and the tail end counterbalance body is arranged at the tail end of the main beam. The utility model has the benefits that parameters such as mass, gravity center, moment of inertia and the like of the fan blade can be accurately simulated by virtue of the process blade provided by the utility model. Besides, the process blade has the advantages of simple structure, economy, safety, strong applicability and simple and convenient operation, and can effectively satisfy the requirements of pitch tests of wind turbine generator systems according to the GB/T 21407-2008 'Doubly-fed Constant Frequency Wind Turbine Generator System'.

Description

一种工艺叶片 a craft blade

技术领域technical field

本实用新型属于风力发电机组生产领域,尤其涉及一种针对风力发电机组变距试验用的工艺叶片。The utility model belongs to the production field of wind power generators, in particular to a craft blade for the variable pitch test of wind power generators.

背景技术Background technique

目前,按GB/T 21407-2008《双馈式恒频风力发电机组》要求,风电机组生产需进行变距机构试验,国内风电机组生产厂家大多采用相应型号风机叶片或者尾端加配重的大直径圆筒进行试验,因风机叶片均长于35米,用其试验对厂房宽度要求极高,而露天操作不符合试验要求,也无法实现试验要求的倍数加载,经济性和可操作性较差,而采用大直径圆筒的厂家,并未将风机叶片的重要参数-转动惯量考虑在内,大直径圆筒无法实现转动惯量与质量的倍数同步增加,不能对风机叶片进行高度仿真,降低了变距试验的准确性,且该种结构长度均大于20米,对厂房宽度要求比较高,重心偏差较大,安装操作较为困难。At present, according to the requirements of GB/T 21407-2008 "Double-fed Constant Frequency Wind Turbine Generator Set", the production of wind turbine sets needs to be tested for variable pitch mechanisms. Cylinder test, because the fan blades are all longer than 35 meters, the test with it has extremely high requirements on the width of the factory building, and the open-air operation does not meet the test requirements, and the multiple loading required by the test cannot be achieved, and the economy and operability are poor. Manufacturers who use large-diameter cylinders do not take into account the important parameter of fan blades - the moment of inertia. Large-diameter cylinders cannot realize the synchronous increase of the moment of inertia and the multiple of mass, and cannot perform high-level simulation of fan blades, which reduces the pitch change. The accuracy of the test, and the length of this structure is greater than 20 meters, the requirements for the width of the factory building are relatively high, the center of gravity deviates greatly, and the installation and operation are more difficult.

发明内容Contents of the invention

为解决以上技术上的不足,本实用新型提供了一种具有结构简单,组装方便,适用性好,经济安全,可方便实现多种质量规格,有效满足风机叶片参数要求等优点的工艺叶片,解决目前风力发电机组变距试验用的工艺叶片必须满足质量、重心、转动惯量等工艺参数要求,以及适用性、可操作性、使用安全等问题。In order to solve the above technical deficiencies, the utility model provides a process blade with the advantages of simple structure, convenient assembly, good applicability, economy and safety, which can conveniently realize various quality specifications and effectively meet the parameter requirements of fan blades. At present, the process blades used in the variable pitch test of wind turbines must meet the requirements of process parameters such as mass, center of gravity, and moment of inertia, as well as issues such as applicability, operability, and use safety.

本实用新型是通过以下措施实现的:The utility model is achieved through the following measures:

本实用新型的一种工艺叶片,连接在变桨轴承上,其特征在于,至少包括:A process blade of the present invention, which is connected to the pitch bearing, is characterized in that it at least includes:

一主梁,为长柱形;a main girder in the shape of a long column;

一垫高座,一端与变桨轴承相连接,另一端与主梁的端部相连接;An elevated seat, one end is connected with the pitch bearing, and the other end is connected with the end of the main girder;

一延长梁,为长柱形,连接在主梁尾端;和an extension beam, in the form of a long column, attached at the end of the main beam; and

一尾端配重体,设置在主梁或延长梁的尾端。A tail end balance weight body is arranged on the tail end of the main girder or the extension girder.

本实用新型的工艺叶片,所述主梁或延长梁或尾端配重体的尾端设置有至少一个微调配重块。In the process blade of the present utility model, at least one fine-tuning counterweight is arranged at the tail end of the main beam or the extension beam or the tail end counterweight body.

本实用新型的工艺叶片,所述垫高座为中空结构,并与主梁连接。In the process blade of the utility model, the raised seat is a hollow structure and is connected with the main beam.

本实用新型的工艺叶片,所述尾端配重体为相同质量的若干块,并且均匀连接在主梁或延长梁的尾端。In the process blade of the present utility model, the tail-end counterweights are several pieces of the same mass, and are evenly connected to the tail end of the main beam or the extension beam.

本实用新型的工艺叶片,所述主梁上设置有吊装用圆套。In the process blade of the utility model, the main girder is provided with a ring sleeve for hoisting.

本实用新型的工艺叶片,所述尾端配重体和微调配重块通过连接法兰板与主梁或延长梁的尾端连接。In the process blade of the utility model, the tail end weight body and the fine-tuning weight block are connected to the tail end of the main beam or the extension beam through a connecting flange plate.

本实用新型的工艺叶片,所述延长梁通过两端的连接法兰板与主梁和尾端配重体相连接。In the process blade of the present utility model, the extension beam is connected with the main beam and the tail-end weight body through connecting flange plates at both ends.

本实用新型的工艺叶片,所述主梁两端分别设置有至少两块加强筋。In the process blade of the utility model, at least two reinforcing ribs are respectively arranged at both ends of the main beam.

本实用新型的工艺叶片,所述加强筋外套有圆锥加强套。In the process blade of the utility model, the reinforcing rib is covered with a conical reinforcing sleeve.

本实用新型的有益效果是:采用本实用新型的工艺叶片,可以准确模拟风机叶片的质量、重心、转动惯量等参数,结构简单、经济适用、安全可靠,操作简便,能够按照GB/T 21407-2008《双馈式恒频风力发电机组》要求,有效实现风力发电机组变距试验要求。The beneficial effects of the utility model are: adopting the technological blade of the utility model can accurately simulate parameters such as mass, center of gravity, moment of inertia of the fan blade, simple structure, economical and applicable, safe and reliable, easy to operate, and can be used according to GB/T 21407- 2008 "Doubly-fed Constant Frequency Wind Turbine Generator Set" requirements, effectively realize the wind turbine pitch variable test requirements.

附图说明Description of drawings

图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.

图中:1.垫高座,2.加强筋,3.主梁,4.吊装用圆套,5.连接法兰板,6.延长梁,7.尾端配重体,8.微调配重块。In the figure: 1. Elevator seat, 2. Reinforcing rib, 3. Main beam, 4. Round sleeve for hoisting, 5. Connecting flange plate, 6. Extension beam, 7. End counterweight, 8. Fine-tuning counterweight .

具体实施方式Detailed ways

如图1所示,本实用新型的一种工艺叶片,连接在变桨轴承上,至少包括:一主梁3、一垫高座1、一延长梁6和一尾端配重体7。主梁3为长柱形,主梁3端部与主梁3主体之间连接加强筋2,加强筋2外套有圆锥加强套,有效增加主梁3强度,减小叶片挠度,防止主梁3变形。主梁3为工艺叶片的主体,具有足够的抗弯强度。垫高座1一端通过螺栓与变桨轴承连接,另一端与主梁3端部法兰螺栓连接,垫高座1的两面均配钻安装用螺栓孔并采用空心结构,有效避让变桨轴承配件,同时作为连接过渡件,便于组装。延长梁6为长柱形,连接在主梁3尾端,通过两端的连接法兰板5与主梁3和尾端配重体7相连接。通过加载配有与连接法兰板5同规格的不同质量和长度的延长梁6,方便实现多种质量规格的工艺叶片。尾端配重体7通过连接法兰板5连接在主梁3尾端,尾端配重体7最好采用质量相同的若干块,分别均匀连接在主梁3尾端,可以平衡尾端的重力,它可以起到在叶片有限长度内,使叶片重心后移,并按照质量倍数同比例增加叶片转动惯量值。至少一块微调配重块8连接在主梁3或者延长梁6或者尾端配重体7尾端,在叶片有限长度内,微调叶片的重心位置和转动惯量,并可以调节因叶片挠度而增加的转动惯量。法兰板5连接主梁3与尾部配重部分,吊装用圆套4外包于主梁3,增加主梁3强度,方便吊运和组装。As shown in FIG. 1 , a process blade of the present invention is connected to the pitch bearing and at least includes: a main beam 3 , a raised seat 1 , an extension beam 6 and a tail end counterweight 7 . The main beam 3 is in the shape of a long column, the end of the main beam 3 and the main body of the main beam 3 are connected with a reinforcing rib 2, and the reinforcing rib 2 is covered with a conical reinforcing sleeve, which effectively increases the strength of the main beam 3, reduces the deflection of the blades, and prevents the main beam 3 from out of shape. The main beam 3 is the main body of the process blade and has sufficient bending strength. One end of the booster 1 is connected to the pitch bearing through bolts, and the other end is connected to the flange bolts at the end of the main beam 3. Both sides of the booster 1 are equipped with drilled bolt holes for installation and adopt a hollow structure to effectively avoid the pitch bearing accessories. Serves as a connection transition piece for easy assembly. The extension beam 6 is in the shape of a long column, connected to the tail end of the main beam 3, and connected to the main beam 3 and the counterweight body 7 at the tail end through the connecting flange plates 5 at both ends. By loading extension beams 6 with different qualities and lengths of the same specification as the connecting flange plate 5, it is convenient to realize process blades of various quality specifications. The tail-end weight body 7 is connected to the tail end of the main beam 3 through the connecting flange plate 5. The tail-end weight body 7 preferably adopts several pieces of the same quality, which are evenly connected to the tail end of the main beam 3, so as to balance the gravity of the tail end. It can move the center of gravity of the blade backward within the limited length of the blade, and increase the moment of inertia of the blade in the same proportion as the mass multiple. At least one fine-tuning counterweight 8 is connected to the main beam 3 or the extension beam 6 or the tail end of the tail-end counterweight 7. Within the limited length of the blade, the position of the center of gravity and the moment of inertia of the blade can be fine-tuned, and the rotation increased due to the deflection of the blade can be adjusted. inertia. The flange plate 5 connects the main beam 3 and the tail counterweight part, and the ring sleeve 4 for hoisting is outsourced to the main beam 3 to increase the strength of the main beam 3 and facilitate lifting and assembly.

组装时,首先在变浆轴承上安装垫高座1,螺栓紧固后再吊运主梁3与垫高座1组装,试验如需另一种质量规格的工艺叶片,则通过连接法兰板5,只需配加相应规格的延长梁6即可实现,无需卸除垫高座,组装方便,安全可靠。When assembling, first install the pad 1 on the variable pitch bearing, and then lift the main girder 3 and the pad 1 to assemble after the bolts are tightened. If the process blade of another quality specification is needed for the test, connect the flange plate 5, It can be realized only by adding the extension beam 6 of the corresponding specification, without removing the raised seat, and the assembly is convenient, safe and reliable.

Claims (9)

1. a process blade is connected on the pitch variable bearings, it is characterized in that, comprises at least:
One girder (3) is long column shape;
One bed hedgehopping seat (1), an end is connected with pitch variable bearings, and the other end is connected with the end of girder (3);
One prolongs beam (6), is long column shape, is connected girder (3) tail end; With
One tail end balance weight body (7) is arranged on girder (3) or prolongs the tail end of beam (6).
2. process blade according to claim 1 is characterized in that: the tail end of described girder (3) or prolongation beam (6) or tail end balance weight body (7) is provided with at least one fine setting balancing weight (8).
3. process blade according to claim 1 is characterized in that: described bed hedgehopping seat (1) is a hollow structure, and is connected with girder (3).
4. process blade according to claim 1 is characterized in that: described tail end balance weight body (7) is some of equal in quality, and evenly is connected the tail end of girder (3) or prolongation beam (6).
5. process blade according to claim 1 is characterized in that: described girder (3) is provided with lifting and overlaps (4) with circle.
6. process blade according to claim 1 and 2 is characterized in that: described tail end balance weight body (7) is connected by the tail end of adpting flange plate (5) with girder (3) or prolongation beam (6) with fine setting balancing weight (8).
7. process blade according to claim 1 is characterized in that: described prolongation beam (6) is connected with tail end balance weight body (7) with girder (3) by the adpting flange plate (5) at two ends.
8. process blade according to claim 1 is characterized in that: described girder (3) two ends are respectively arranged with at least two stiffening ribs (2).
9. according to claim 1 or 8 described process blades, it is characterized in that: the outer circular cone strengthening sleeve that is with of described stiffening rib (2).
CN2010201935653U 2010-05-18 2010-05-18 Process blade Expired - Lifetime CN201714599U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832236A (en) * 2010-05-18 2010-09-15 济南轨道交通装备有限责任公司 Process blade
CN108194285A (en) * 2017-12-21 2018-06-22 中交三航(上海)新能源工程有限公司 A kind of offshore wind farm impeller high-altitude method for dismounting and its method for dismounting adjustable center of gravity tooling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832236A (en) * 2010-05-18 2010-09-15 济南轨道交通装备有限责任公司 Process blade
CN101832236B (en) * 2010-05-18 2012-01-04 济南轨道交通装备有限责任公司 Process blade
CN108194285A (en) * 2017-12-21 2018-06-22 中交三航(上海)新能源工程有限公司 A kind of offshore wind farm impeller high-altitude method for dismounting and its method for dismounting adjustable center of gravity tooling

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20110119

Effective date of abandoning: 20120104

AV01 Patent right actively abandoned

Granted publication date: 20110119

Effective date of abandoning: 20120104