CN201593478U - Blade of butt joint type wind turbine - Google Patents

Blade of butt joint type wind turbine Download PDF

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Publication number
CN201593478U
CN201593478U CN 200920295176 CN200920295176U CN201593478U CN 201593478 U CN201593478 U CN 201593478U CN 200920295176 CN200920295176 CN 200920295176 CN 200920295176 U CN200920295176 U CN 200920295176U CN 201593478 U CN201593478 U CN 201593478U
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CN
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Grant
Patent type
Prior art keywords
blade
holes
type
connecting
end
Prior art date
Application number
CN 200920295176
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Chinese (zh)
Inventor
石孟成
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浙江恒通机械有限公司
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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
    • Y02E10/721Blades or rotors
    • 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
    • Y02E10/74Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The utility model provides a blade of a butt joint type wind turbine, belonging to the field of a wind power electricity generating facility. A blade of a large-scale wind driven generator has the problems of difficult transportation and installation. The blade is formed by the butt joint of at least two sections of hollow blade bodies through screw nails. A connecting end for the mutual butt joint of the two adjoining sections of the blade bodies are divided into an a type connecting end and a b type connecting end; the a type connecting end and the b type connecting end are internally provided with flanges; the outer edge of a flange disc is connected with shells of blade bodies; the flange disc is provided with a plurality of fastening holes; the b type connecting end flange disc is provided with through holes which correspond to the fastening holes; the screw nails penetrate through the through holes; the screw nails are screwed into the fastening holes to fixedly connect the two sections of the blade bodies; the hollow inner cavity of each blade body is internally filled with foaming agent; and the middle of the foaming agent is provided with long holes which correspond to the through holes. The blade is formed by the butt joint of the segmented blade bodies which are internally provided with the flange discs, can shorten the length and reduce the weight of small blade monomers, and is convenient for transportation and installation.

Description

对接式风轮机叶片 Butt wind turbine blade

技术领域[0001] 本实用新型属于风力发电设备领域,尤其与一种对接式风轮机叶片有关。 Technical Field [0001] The present invention belongs to the field of wind power generation equipment, especially with one wind turbine blade about the butt. 背景技术 Background technique

[0002] 风电机叶片是现代风力发电设备中至关重要的部件。 [0002] The wind turbine blades of modern wind power plant essential component. 目前世界风力发电进一步向大功率、长叶片方向发展,叶片单体长度已达到了60米以上。 Further development of the world's wind power to high-power, long blade direction, blade element has a length of up to 60 meters. 这就增加叶片运输和安装难度,需要为叶片的运送配置专门的运输设备和车辆,运输道路以及道路周边环境都要适应加长车辆行进需要,同样,叶片的竖立安装也需要专门的起吊设备。 This increases the difficulty of transporting and installing the blades, you need to configure special transport equipment and vehicles for the transport of blades, roads and road transportation must adapt to the surrounding environment need to lengthen the vehicle is traveling, too, erected bladed also require specialized lifting equipment.

实用新型内容 SUMMARY

[0003] 本实用新型要解决大型风电机叶片运输困难、安装困难的技术难题,提供一种方便运输和安装的对接式风轮机叶片。 [0003] The present invention to solve large-scale wind turbine blades difficult to transport, installation difficult technical problems and provide a wind turbine blade butt a convenient transportation and installation. 为此,本实用新型采用以下技术方案: To this end, the present invention adopts the following technical scheme:

[0004] 对接式风轮机叶片,由至少两段中空的叶片体对接组成,每段叶片体都具有连接端,其特征是:相邻两段所述的叶片体相互对接的连接端分为a型连接端和b型连接端,a 型连接端和b型连接端都为内置法兰盘形式,法兰盘外缘与叶片体的壳体连接,a型连接端法兰盘上设置有多个紧固孔,紧固孔内壁设置有螺纹,b型连接端法兰盘上设置与所述的紧固孔对应的通孔,该通孔中穿装有螺钉,螺钉拧入所述的紧固孔,将两段叶片体紧固连接; 所述的叶片体中空内腔中充填有发泡剂,发泡剂中间设置有与所述的通孔对应的长孔,用于拧装螺钉的扳手导向杆通过。 [0004] Butt wind turbine blade, the blade abutting the at least two hollow body composition, each blade body having a connection end, wherein: adjacent two of said vanes with each other into a mating connection terminal type connecting terminal and connector terminal b, a-type and b-type connecting terminal connected to an end flange forms are built, the outer edge of the blade housing flange body is connected, is provided on a plurality flange type connection a fastening hole, the inner wall of the fastening hole is provided with a through hole provided with the upper thread, b-type flange connection fastening hole corresponding to the through hole fitted through screw which is screwed into the tightening fixing holes, fastening the two vanes; hollow interior of the blade body is filled with the blowing agent, the blowing agent is provided intermediate the long hole corresponding to the through holes for screwing the mounting screws by guide bar wrench.

[0005] 作为对上述技术方案的进一步完善和补充,本实用新型还包括以下附加技术特征: [0005] As a further refinement and complement the above technical solution, the present invention further includes the following additional features:

[0006] 所述的紧固孔中心线位于叶片体轴向对称面上。 [0006] positioned axially symmetric surface of the blade body fastening hole centerline.

[0007] 所述的a型连接端和b型连接端的法兰盘内表面上设置有加强筋,加强筋与叶片体的壳体连接。 [0007] The type of a flange is provided on the inner surface of the connection end and the b-type reinforcing rib connecting end, the housing reinforcing rib connecting the blade body.

[0008] 所述的螺钉的螺钉头与b型连接端法兰盘表面之间设置弹簧垫片,弹簧垫片变形弹力大于螺钉抗拉强度,保证两段叶片体能紧密连接。 [0008] A spring washer between the screw head and the disk surface b of the connector end of the screw flange, deformation of the spring washer is larger than the elastic force of the tensile strength of the screw, two blades ensure a tight physical connection.

[0009] 所述的紧固孔为台阶孔,由定位段和紧固段组成,定位段位于对接端面一侧,其直径大于紧固段,兼作定位孔使用,紧固段设置有螺纹,相应的所述的通孔与紧固孔定位段直径相等并同轴;所述的螺钉靠近螺钉头部的后段直径与紧固孔定位段相当,螺钉前段与紧固孔紧固段对应形成螺纹配合。 Fastening hole [0009] of the stepped hole, and the fastening section by the positioning segments, the positioning section is located abutting end face, a diameter larger than the fastening section, the positioning holes doubles use, the fastening section is provided with a thread, corresponding equal and coaxial with the through hole of the fastening hole positioning section diameter; the diameter of the screw near the rear section of the fastening hole section of the screw head is positioned relatively, the fastening hole corresponding to a screw fastening anterior threaded section cooperation.

[0010] 所述的a型连接端法兰盘和b型连接端法兰盘之间设置有密封圈,防止水等腐蚀物从连接端进入叶片体内腔,造成内部腐蚀。 [0010] a sealing ring disposed between said flange end of a connector and a connection end flange type b, water and the like to prevent corrosion from the cavity into the blade body connection terminal, causing internal corrosion.

[0011] 使用本实用新型可以达到以下有益效果:通过内置法兰盘的分段式叶片体对接组成,可以缩小叶片单体的长度和重量,方便运输和安装。 [0011] Using the present invention can achieve the following advantageous effects: blade body built by a segmented flange docking composition, can reduce the length and weight of the blade members, convenient transportation and installation. 附图说明 BRIEF DESCRIPTION

[0012] 图1是本实用新型局部剖视结构示意图。 [0012] FIG. 1 is a partial schematic view of the new structure of the present utility sectional view.

[0013] 图2是图1中a处的局部放大图。 [0013] FIG. 2 is a partially enlarged view at a 1.

[0014] 图3是图1的AA剖视图的放大图。 [0014] FIG. 3 is an enlarged view of a cross-sectional view AA 1.

具体实施方式 detailed description

[0015] 下面结合附图对本实用新型的具体实施方式进行详细描述。 DRAWINGS The invention is described in detail specific embodiments [0015] below in conjunction.

[0016] 如图1、图2、图3所示,本实用新型由中空的叶根、叶尖两段叶片体对接组成,每段叶片体都具有连接端,叶根对接连接端1为b型连接端,叶尖对接连接端2为a型连接端,a 型连接端和b型连接端对接且都为内置法兰盘形式,法兰盘外缘与叶片体的壳体连接,a型连接端法兰盘5和b型连接端法兰盘6之间设置有密封圈,a型连接端法兰盘5上设置有4 个紧固孔,紧固孔中心线位于叶片体轴向对称面上,紧固孔为台阶孔,由定位段和紧固段组成,定位段位于对接端面一侧,其直径大于紧固段,兼作定位孔使用,紧固段设置有螺纹,b 型连接端法兰盘6上设置与所述的紧固孔对应的通孔,通孔与紧固孔定位段直径相等并同轴,通孔中穿装有螺钉7,螺钉7的螺钉头与b型连接端法兰盘6的表面之间设置弹簧垫片, 螺钉7靠近螺钉头部的后段直径与紧固孔定位段相当,螺 [0016] As shown in FIG 1, FIG 2, FIG. 3, the root of the present invention, two tip blade body composed of a hollow abutment, each blade body having a connection end, the root end of the mating connector 1 b type connection terminal, the tip end of the mating connector 2 is a connector terminal, a connector and a terminal end of the docking connector, and b are built in the form of a flange, the outer edge of the blade housing body flange connection, a type of flange connection is provided between the seal ring 5 and the b-type connecting terminal flange 6, a connector is provided on the end of the flange 5 has four fastening holes, fastener holes axially symmetric center line of the blade body surface of the fastening hole of the stepped hole, and the fastening section by the positioning segments, the positioning section is located abutting end face, a diameter larger than the fastening section, the positioning holes doubles use, the fastening section is provided with a thread, b-type connecting terminal 6 is provided with the upper flange of the fastening hole corresponding to the through hole, the through hole and the fastening hole section equal in diameter and coaxially positioned, with screws through the through holes 7, 7 and the screw head of the screw connection type b a spring washer disposed between a surface of the end flange 6, bolt 7 close to the screw head diameter of the fastening hole after segment positioning section rather, spiro 钉前段与紧固孔紧固段对应形成螺纹配合,将两段叶片体紧固连接;所述的叶片体1中空内腔中充填有发泡剂4,发泡剂4 中间设置有与所述的通孔对应的长孔3,a型连接端法兰盘5和b型连接端法兰盘6内表面上设置有加强筋,加强筋与叶片体的壳体连接。 Nail anterior segment corresponding to the fastening hole formed in the fastening screw fit, fastening the two vanes; the blade body 1 is filled with the hollow interior 4 the blowing agent, the blowing agent is provided with the intermediate 4 3, a connector end of the long hole corresponding to the through hole 5 and the flange 6 is provided on the inner surface of the b-type connecting terminal flange reinforcing rib, the reinforcing rib housing connected to the blade body.

[0017] 本实用新型也可以由叶根、叶肚、叶尖等多段叶片体对接组成,则叶肚一端为a型连接端,另一端为b型连接端。 [0017] The present invention may also be a multi-stage vanes root, leaf belly, tip docking like composition, the end of a leaf-type connector belly end and the other end is connected to b-type terminal. 叶肚的段数也可以根据叶片长度而定。 The number of segments may be belly leaves depends on the blade length.

Claims (6)

  1. 对接式风轮机叶片,由至少两段中空的叶片体对接组成,每段叶片体都具有连接端,其特征在于:相邻两段所述的叶片体相互对接的连接端分为a型连接端和b型连接端,a型连接端和b型连接端都为内置法兰盘形式,法兰盘外缘与叶片体的壳体连接,a型连接端法兰盘(5)上设置有多个紧固孔,紧固孔内壁设置有螺纹,b型连接端法兰盘(6)上设置与所述的紧固孔对应的通孔,该通孔中穿装有螺钉(7),螺钉(7)拧入所述的紧固孔,将两段叶片体紧固连接;所述的叶片体中空内腔中充填有发泡剂(4),发泡剂(4)中间设置有与所述的通孔对应的长孔(3)。 Butt-type wind turbine blade, the blade consists of at least two hollow bodies butted composition, each blade body having a connection end, wherein: adjacent two vanes of the mutually abutting connecting end into a connector end and b-type connecting terminal, a-type and b-type connecting terminal connected to an end flange forms are built, the outer edge of the blade housing flange body is connected, is provided on a plurality flange type connection (5) a fastening hole, the inner wall is provided with a fastening hole provided on the threaded through hole, b-type connecting terminal flange (6) and the fastening hole corresponding to the through hole fitted through the screw (7), a screw (7) screwed into said fastening hole, the fastening two vanes; blade body hollow interior is filled with the foaming agent (4), a foaming agent (4) and has the intermediate provided by the long hole corresponding to said through hole (3).
  2. 2.根据权利要求1所述的对接式风轮机叶片,其特征在于:所述的紧固孔中心线位于叶片体轴向对称面上。 The butt-type wind turbine blade according to claim 1, wherein: said fastening hole centerline of the axially symmetric body of the blade surface.
  3. 3.根据权利要求1所述的对接式风轮机叶片,其特征在于:所述的a型连接端和b型连接端的法兰盘内表面上设置有加强筋,加强筋与叶片体的壳体连接。 The butt-type wind turbine blade according to claim 1, further comprising: a reinforcing rib, the reinforcing rib vanes on the inner surface of the shell a flange type connection terminal of the connection terminals and the type b connection.
  4. 4.根据权利要求1所述的对接式风轮机叶片,其特征在于:所述的螺钉(7)的螺钉头与b型连接端法兰盘(6)表面之间设置弹簧垫片。 The butt-type wind turbine blade according to claim 1, wherein: said screws (7) of the screw head and the b-type connection flange (6) is provided between the surface of the spring spacer.
  5. 5.根据权利要求1所述的对接式风轮机叶片,其特征在于:所述的紧固孔为台阶孔,由定位段和紧固段组成,定位段位于对接端面一侧,其直径大于紧固段,紧固段设置有螺纹, 相应的所述的通孔与紧固孔定位段直径相等并同轴;所述的螺钉(7)靠近螺钉头部的后段直径与紧固孔定位段相当,螺钉(7)的前段与紧固孔紧固段对应形成螺纹配合。 The butt-type wind turbine blade according to claim 1, wherein: said fastening hole is stepped hole, and the fastening section by the positioning segments, the positioning end face abutting section is located having a diameter larger than the immediately solid section, the fastening section is provided with a threaded, through hole corresponding to equal the diameter of the fastening hole coaxially positioning section; said screw (7) near the rear section of the fastening hole diameter of the screw head positioning section rather, the screw (7) of the front section corresponding to the fastening hole formed in the fastening section is screwed.
  6. 6.根据权利要求1所述的对接式风轮机叶片,其特征在于:所述的a型连接端法兰盘(5)和b型连接端法兰盘(6)之间设置有密封圈。 The butt-type wind turbine blade according to claim 1, wherein: said seal ring between a flange type connection (5) and b-type connecting terminal flange (6) is provided.
CN 200920295176 2009-12-28 2009-12-28 Blade of butt joint type wind turbine CN201593478U (en)

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Application Number Priority Date Filing Date Title
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CN 200920295176 CN201593478U (en) 2009-12-28 2009-12-28 Blade of butt joint type wind turbine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102192110A (en) * 2011-06-12 2011-09-21 中国科学院工程热物理研究所 Subsection blade of wind turbine and assembling method thereof
WO2013067916A1 (en) * 2011-11-11 2013-05-16 Zhang Xiangzeng New blade of composite material for horizontal-axis wind power generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102192110A (en) * 2011-06-12 2011-09-21 中国科学院工程热物理研究所 Subsection blade of wind turbine and assembling method thereof
CN102192110B (en) 2011-06-12 2012-10-10 中国科学院工程热物理研究所 Subsection blade of wind turbine and assembling method thereof
WO2013067916A1 (en) * 2011-11-11 2013-05-16 Zhang Xiangzeng New blade of composite material for horizontal-axis wind power generator

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