WO2014161215A1 - Wind turbine with full blade tips - Google Patents
Wind turbine with full blade tips Download PDFInfo
- Publication number
- WO2014161215A1 WO2014161215A1 PCT/CN2013/075238 CN2013075238W WO2014161215A1 WO 2014161215 A1 WO2014161215 A1 WO 2014161215A1 CN 2013075238 W CN2013075238 W CN 2013075238W WO 2014161215 A1 WO2014161215 A1 WO 2014161215A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- fixed
- wind turbine
- yaw
- platform
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 24
- 239000003921 oil Substances 0.000 claims description 17
- 239000010720 hydraulic oil Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000010248 power generation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/002—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being horizontal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
-
- 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
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Definitions
- the invention relates to a wind power generating device, in particular to a full-tip wind turbine with all the blades disposed on the outer rim supported by the triangular truss type support frame, which is suitable for various wind power generation places.
- the aerodynamic performance of the conventional blade is poor and cumbersome, and the intermediate wind resistance of the impeller is large.
- the material requirements are high, the efficiency is low, and the manufacturing cost is high.
- the large-blade hoisting transportation also restricts the development of large-scale wind power installations.
- the base is placed on a single tower with a height of several tens of meters.
- the load-bearing range varies from tens of tons to more than 200 tons depending on the capacity of the single unit.
- Such weight and height are supported by a single tower. Focusing on the unstable factors, the single-structure tower is restricted by the height limit of the crane and hoisting, it is difficult to obtain higher wind energy, and the motor-driven yaw and pitch system are complex, and the gearbox has a narrow speed range.
- the resulting generator is inefficient, and therefore, improvements to the above-described wind power generation apparatus have been the subject of general research by those skilled in the art.
- the inventors have disclosed the "anti-high wind wind generator” with the bulletin number CN100467862C according to the problems of the mechanical strength difference, the difficulty of implementation and the practicability of the existing large-scale wind power generator, in order to solve the anti-destructive strong wind of the super large blade. A defect with poor ability.
- the patents of the "Wind Wheel for Generating Electric Energy” with the publication number US005765990A and the “Energy Acquisition Wind Equipment with Combinable Devices” with the publication number DE20213062U1 are not suitable for large wind turbines.
- No. CN101603509A "Enhanced Wind Turbine", which is equipped with a rotary table platform and an impeller assembly assembled thereon. The air hood is provided.
- the two ends of the central shaft of the impeller group are assembled on the rotary table by bearings and bearing blocks.
- the main blade root is fixed to the blade connection sleeve on the central shaft.
- the tip of the blade is fixed on the rim of the impeller group, and the middle portion of the blade is fixed on the transmission support ring provided in the middle of the impeller, and the auxiliary blade is disposed between the transmission support ring and the rim.
- the transmission support ring directly meshes with the generator wheel, and the two ends of the central shaft respectively fix the stay cable fixing disc, one end of the stay cable is connected with the stay cable fixing disc, and the other end is fixed to the rim through the transmission support ring, the blade In the middle, a blade stay cable is connected with the stay cable fixing plate.
- the wind turbine uses the stay cable to provide safety technical guarantee for the manufacture of large impellers, it fundamentally solves the above problems of the existing large-scale wind turbines, but because the rotary table platform does not have a yaw drive device, the blade connection
- the generator is in a high position, the stability is poor, and the implementation is difficult;
- the second is that the main and auxiliary blades respectively retain the blade root and the middle of the blade.
- the sub-blade is arranged between the transmission support ring and the rim, which is difficult and mechanically strong. It is difficult to guarantee.
- the main reason is that the rim of the single structure is used, and there is only one support point, so the blade cannot be placed on the rim.
- the existing large-scale wind turbine blades generally have unreasonable settings, low blade efficiency, difficult implementation, and difficulty in securing mechanical strength.
- the blade tip of the same unit area is for the impeller.
- the resulting torque is much larger than the middle and root of the blade. Therefore, the structure of the existing blade is not suitable for the wind load requirements of high efficiency wind turbines.
- the object of the present invention is to provide a full-tip wind turbine generator, which fundamentally solves the problems of low efficiency, poor mechanical strength, and difficulty of implementation of existing wind turbine generators, and has reasonable wheel design and simple blade structure. With complete hydraulic yaw and pitch function, the whole blade tip is evenly stressed, easy to install and adjust, safe and reliable to use, and prolongs the service life of the whole machine.
- the technical solution adopted by the invention is: the full-tip wind turbine comprises a yaw platform fixed on the tower, and the yaw platform is supported by the frame, the bearing seat, the hollow shaft and the stay cable.
- the horizontal axis impeller group, the generator and the hydraulic line, the technical points are:
- the horizontal axis impeller group comprises a wheel body composed of a triangular truss connecting two outer rims and one inner rim, assembled by a blade pitch device a blade on the outer rim of the wheel, and a driving brake integral ring fixed at a height of the outer periphery of the wheel; the inner rim of the wheel body and the traction flange on the hollow shaft are connected by a stay cable support, the blade
- the pitching device is assembled on the outer rim of the wheel, and the bottom end of the blade on the blade pitching device adopts a hinge or an articulated shaft to form a hinged end of the blade, and the upper end of the blade is used as a movable supporting
- the yaw platform is supported by at least three towers.
- the output pipe of the hydraulic oil pipe in the hydraulic pipeline is inserted into the hollow rotating shaft through a hydraulic rotary joint fixed on the bearing housing, and is led out from the oil pipe through hole of the hollow rotating shaft to the wheel body, and the oil return pipe of the hydraulic oil pipe passes through the oil pipe of the hollow rotating shaft.
- the hole is introduced, and the hollow rotating shaft is led out by a hydraulic rotary joint fixed to the bearing housing, and is connected to the oil tank.
- the hydraulic oil pipe of the hydraulic pipe, the output pipe is inserted into the hollow rotating shaft through a hydraulic rotary joint fixed on the bearing housing, and is led out from the oil pipe through hole of the hollow rotating shaft to the wheel body, and the oil return pipe on the wheel body is from the oil pipe of the hollow rotating shaft
- the through hole is introduced, and the hollow rotating shaft is led out through a hydraulic rotary joint fixed to the bearing housing, and is connected to the oil tank.
- a pair of brake calipers fixed on the yaw platform are disposed on both sides of the integrated drive brake ring.
- the outer circumference of the driving brake integral ring is closely connected with the transmission wheel of the transmission wheel generator fixed on the yaw platform Touch.
- the outer circumference of the driving brake integral ring is fixed with a permanent magnet as a generator rotor through a magnetic isolation insulating spacer, and a permanent magnet direct drive generator is formed as a winding group of the stator in a base fixed on the yaw platform.
- the advantages and positive effects of the present invention are as follows:
- the full-tip wind turbine is as the name suggests to abandon the blade root of the conventional wheel body with zero aerodynamics and the middle of the blade with poor aerodynamicity, all adopting a high-efficiency blade tip, the wheel
- the cable-stayed support between the traction flange at both ends of the hollow shaft and the inner rim of the triangular truss replaces the support of the traditional wheel body and the blade, and the blades are all disposed on the outer rim of the triangular truss. Because the cross-section of multiple cable stays is less than one-half of the existing conventional wheel roots, the wheel design is reasonable and the blade structure is simple.
- the whole blade tip is evenly stressed, which not only reduces the windward surface of the wheel body, but also increases the area of the blade tip with high efficiency. It is safe and reliable, and also prolongs the service life of the whole machine. It fundamentally solves the problems of thick and bulky, inefficient, poor mechanical strength and complicated structure of existing wind turbine blades. Since ancient times, people have used traditional wheel structures to ensure their strength. Since the number and unit area of the wheel blades of the present invention are greatly increased, the torque can be multiplied by the same amount as the prior art, although the impeller diameter is the same.
- the drive brake integrated ring directly drives the drive wheel generator or drives the permanent magnetic direct drive generator, which does not require a gearbox, and has a wide speed range and can be used as a secondary brake disc.
- the auxiliary brake calipers on the yaw platform clamp the sides of the drive brake integrated ring, which can achieve the purpose of braking.
- Figure 1 is a schematic view of a specific structure of the present invention
- Figure 2 is a partial enlarged cross-sectional view taken along line A-A of Figure 1;
- FIG. 3 is a schematic view showing the specific structure of a permanent magnet direct-drive power generation according to the present invention.
- the serial number in the figure shows: 1 tower, 2 yaw bearing, 3 yaw platform, 4 drive wheel generator, 5 drive brake integrated ring, 6 blades, 7 racks, 8 hollow shafts, 9 bearing seats, 10 inner wheels Edge, 11 outer rim, 12 blade pitcher, 13 stay cable, 14 traction flange, 15 main brake caliper, 16 main brake disc, 17 hydraulic hose, 18 hydraulic rotary joint, 19 tubing through hole, 20 triangular truss , 21 hydraulic motor, 22 limit frame, 23 blade hinged end, 24 blade movable support end, 25 guide slide, 26 magnetic isolation gasket, 27 permanent magnet, 28 winding group, 29 base, 30 blade support .
- the full-tip wind turbine includes a yaw platform 3 fixed to the tower 1 and assembled on the yaw platform 3 with a horizontal axis supported by the frame 7, the bearing housing 9, the hollow shaft 8 and the stay cable 13.
- the yaw platform 3 is supported by at least three towers 1.
- the specific implementation method is: inserting the first section of each tower 1 into the reserved hole of the yaw platform 3, and fixing it to the ground or horizontal foundation.
- a crane is placed on the inner wall of the tower 1 (not shown) Shown) After the mutual aid is raised, the rack 7 is assembled and the horizontal axis impeller assembly is assembled.
- the yaw platform 3 and above With the support of the plurality of towers 1, the yaw platform 3 and above is raised to the top end of the tower 1 by the combination of lifting and jacking, and only a small crane can break through the limitation of the height limit of the large crane. .
- the yaw bearing 2 includes a bearing upper ring with an internal ring gear fixed at the bottom of the upper platen, a bearing lower ring fixed at the upper part of the lower platen, and a rolling wheel is disposed in the upper and lower ring channels of the bearing, and both ends of the rolling wheel shaft pass A bearing (not shown) is assembled on the support frame from which the upper ring of the bearing extends.
- the transmission driven by the hydraulic motor 21 is constituted by the meshing of the inner ring gear of the yaw bearing 2 and the gear driven by the hydraulic motor 21.
- the horizontal axis impeller assembly assembled on the yaw platform 3 includes a truss-structured wheel body formed by connecting the two outer rims 11 and one inner rim 10 by means of a triangular truss 20, which is assembled outside the wheel by the blade pitching device 12.
- the blade 6 on the rim 11 and the transmission brake integral ring 5 and the like which are fixed to the top end of the support frame which protrudes from the outer periphery of the wheel.
- the hollow shaft of the wheel body is assembled on the bearing housing 9 by bearings at both ends, and the main brake disc 16 and the traction flange 14 are symmetrically fixed at both ends of the hollow shaft 8 respectively.
- the inner rim 10 of the wheel body is coupled to the traction flange 14 on the hollow shaft 8 by means of a stay cable 13.
- the stay cable 13 can be arranged in a manner of bicycle spokes or a tilting cable of a Ferris wheel, one end of which is fixedly connected to the traction flange 14 and the other end of which is fixedly connected to the inner rim 10 of the wheel body.
- the corresponding cable staying cable 13 can be inserted and fixed, that is, the stay cable 13 passes through the hole of the traction flange 14 in the obliquely pulled position, and is fixed to the hole of the corresponding end traction flange 14 for the purpose. It is to balance the axial force generated by the fixed end of the stay cable 13 to the hollow shaft 8.
- a plurality of blade pitching devices 12 are evenly assembled on the two parallel outer rims 11 of the wheel body.
- Each of the blade pitching devices 12 includes a joint fixed to the outer rim 11 (the shape can be set according to pitch requirements), a blade hinge end 23, a blade movable support end 24, a guide slide 25 and a blade support frame 30, and the like.
- the blade support frame 30 can be placed on the connector as needed.
- the bottom end of the blade 6 on the blade pitching device 12 may constitute a blade hinge end 23 by means of a hinge or hinge shaft (not shown), and the upper end of the blade 6 serves as a movable supporting end 24 and a piston of a hydraulic cylinder (not shown).
- the rod ends are hinged together, and the pitch of the blades 6 is completed by the expansion and contraction of the piston rods; the main brake discs 16 are disposed on both sides of the hollow shaft 8, and the main brake calipers 15 respectively fixed on the bearing housing 9 or the frame 7 are clamped at Both sides of the main brake disc 16.
- the main brake caliper 15 clamps the two sides of the main brake disc 16 to achieve the purpose of braking.
- the blade 6 can be connected and pitched in two embodiments.
- the following two solutions all refer to the clockwise rotation of the impeller.
- Solution 1 The hinged end 23 of the blade is fixed to the bottom end of the blade 6 by a hinge or an articulated shaft.
- the upper end of the blade is a movable supporting end 24, and the piston rod end of the hydraulic cylinder is hinged at the movable supporting end 24 of the blade, and the blade is driven by the expansion and contraction of the piston rod. 6 is turned around the blade hinge end 23 by a certain angle to complete the pitching of the blade 6.
- the blade hinge end 23 is fixed to the left end of the blade 6 by a hinge or a hinge shaft, and the right end of the blade is provided with a hydraulic cylinder for the movable support end 24, and the piston rod end of the hydraulic cylinder is hinged at the movable end 24 of the blade, and is extended and contracted by the piston rod. While moving the blade movable supporting end 24 along the guiding chute 25, driving the blade 6 around the blade The hinged end 23 of the piece rotates to complete the pitching of the blade 6.
- the generator of the present invention can adopt two embodiments.
- Solution 1 As shown in FIG. 1, the outer circumference of the transmission brake integrated ring 5 is in close contact with the transmission wheels of the plurality of transmission wheel generators 4 fixed on the yaw platform 3. .
- the drive brake integrated ring 5 transmits power to the drive wheel generator to achieve power generation.
- Solution 2 As shown in FIG. 3, the outer circumference of the transmission brake integral ring 5 is fixed with a permanent magnet 27 as a generator rotor through a magnetic isolation spacer 26, and is wound around the base 29 fixed on the yaw platform 3 as a stator.
- the wire set 28 constitutes a permanent magnet direct drive generator.
- the drive brake integrated ring 5 transmits power to the permanent magnetic direct drive generator to achieve the purpose of power generation.
- stator winding group 28 The basic technical parameters of the stator winding group 28, the rotor permanent magnet 27 and the blade 6 assembled in the frame 29 of the permanent magnet direct-drive generator and the specifications and quantities thereof shall be referred to the specifications and basis of the existing generator. Actual use needs to be determined.
- the winding group 28 and the frame 29 of the stator are of an open structure, and the length does not exceed the yaw platform 3, and the permanent magnets 27 provided on the outer rim 11 have the same arc rotation and the height is uniform, and the winding group 28 is Features a protective film.
- the brake calipers 5 are provided on both sides with a secondary brake caliper (not shown) fixed on the yaw platform.
- the auxiliary brake caliper clamps the two sides of the transmission brake integral ring 5 as the auxiliary brake disc to achieve the purpose of braking.
- the hydraulic lines are fixed to the frame 7 and the housing 9 housing.
- the output pipe and the return pipe (not shown) of the hydraulic oil pipe 17 in the hydraulic line are in communication with the prime mover, the hydraulic pump, and the oil tank (not shown).
- the hydraulic oil pipe 17 is inserted into the hollow shaft 8 through the hydraulic rotary joint 18, and is led out from the oil pipe through hole 19 of the hollow rotary shaft 8 to the wheel body, and is directly connected to the hydraulic cylinder of the blade pitch device 12.
- the oil return pipe of the hydraulic oil pipe is introduced from the oil pipe through hole 19 of the hollow rotary shaft 8, and the hollow rotary shaft 8 is connected to the oil tank through a hydraulic rotary joint 18 fixed to the outer casing of the bearing housing 9.
- the hydraulic circuit of the hydraulic motor 21 is in direct communication with the prime mover, the hydraulic pump, and the fuel tank (not shown).
- the two outer rims 11 and one inner rim 10, the yaw bearing 2 and the yaw platform 3, which constitute the wheel truss structure, can be manufactured in sections to facilitate sectional transportation and on-site assembly and adjustment.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
A wind turbine with full blade tips comprises a yaw platform (3) fixed on a tower (1), a horizontal blade impeller set mounted on the yaw platform (3), a power generator (4), and a hydraulic pipeline. The horizontal blade impeller set comprises an impeller body, blades (6) mounted on the outer edge (11) of the impeller body by a blade pitch varying device (12), and a transmission-braking integrated ring (5) fixed on the periphery of the impeller body; the impeller body and a hollow rotation shaft (8) are supported and connected together by a stay cable (13), a hinged end of the blade pitch varying device (12) is fixed on the bottom end of the blade (6), a blade motion supporting end (24) is provided on a hydraulic cylinder, and the pitch of the blade (6) is varied by stretching out and drawing back a piston rod of the hydraulic cylinder; and master brake calipers (15) are disposed at two sides of a master brake disc (16) on the hollow rotation shaft (8). The impeller body is designed rationally, the blade structure is simple, the wind turbine has complete hydraulic yaw and pitch varying functions, and all blade tips are evenly stressed, so the mounting and adjustment are simple and it is safe and reliable to use the wind turbine, thereby prolonging the service life of the whole machine.
Description
全叶尖风力发电机 Full-tip wind turbine
【技术领域】 [Technical Field]
本发明涉及一种风力发电装置, 特别是一种叶片全部设置于三角珩架式支撑架支撑的 外轮缘上的全叶尖风力发电机, 适用于多种风力发电场所。 The invention relates to a wind power generating device, in particular to a full-tip wind turbine with all the blades disposed on the outer rim supported by the triangular truss type support frame, which is suitable for various wind power generation places.
【背景技术】 【Background technique】
目前, 广泛应用的以风能为动力的大型水平轴风力发电装置, 大多采用传统轮毂上设 置三个叶片的结构。 这样的风电装置叶片少, 对叶轮整体而言, 风的受力就小, 尤其是占 叶片总体长度四分之一左右的根部, 为了强度保障, 采用筒形结构, 气动性能为零; 占叶 片长度四分之二的是中部, 因其所处位置, 对于相同的单位面积而言, 所产生的扭矩不如 叶片尖部; 而只占叶片总长度四分之一左右的尖部, 为了稳定, 防御变形过度, 叶片尖部 较窄, 所以气动性能较弱。 这种传统叶片的空气动力性能即差, 又笨重, 叶轮中间阻风面 积大, 对于材质要求高, 并且效率低、 制造成本高, 大型叶片吊装运输也制约了风电装置 大型化的发展。 机座设置于几十米高的单一塔筒之上, 承重范围因单机容量大小不同, 从 几十吨至二百余吨不等, 如此的重量及高度又是单一塔筒所支撑, 故存在着重心不稳定因 素, 单一结构塔筒又受到吊机、 吊装高度极限制约, 难以获取更高处的风能, 以及电机驱 动的偏航、 变桨系统结构复杂, 变速箱调速范围窄等影响所造成的发电机低效, 因此, 对 上述风力发电装置的改进, 成为本领域技术人员普遍研究的对象。 At present, most of the large-scale horizontal-axis wind power generation devices that are widely used for wind power use a structure in which three blades are arranged on a conventional hub. Such a wind power device has few blades, and the wind force is small for the entire impeller, especially the root portion which accounts for about a quarter of the overall length of the blade. For the strength guarantee, the cylindrical structure is adopted, and the aerodynamic performance is zero; Two-quarters of the length is the middle. Because of its position, the torque produced is not as good as the tip of the blade for the same unit area. The tip is only about a quarter of the total length of the blade. The defense is over-deformed and the tip of the blade is narrow, so the aerodynamic performance is weak. The aerodynamic performance of the conventional blade is poor and cumbersome, and the intermediate wind resistance of the impeller is large. The material requirements are high, the efficiency is low, and the manufacturing cost is high. The large-blade hoisting transportation also restricts the development of large-scale wind power installations. The base is placed on a single tower with a height of several tens of meters. The load-bearing range varies from tens of tons to more than 200 tons depending on the capacity of the single unit. Such weight and height are supported by a single tower. Focusing on the unstable factors, the single-structure tower is restricted by the height limit of the crane and hoisting, it is difficult to obtain higher wind energy, and the motor-driven yaw and pitch system are complex, and the gearbox has a narrow speed range. The resulting generator is inefficient, and therefore, improvements to the above-described wind power generation apparatus have been the subject of general research by those skilled in the art.
本发明人曾根据现有大型风力发电机存在的机械强度差、 实施难度大、 实用性差等问 题, 公开了公告号为 CN100467862C的"抗强风风力发电机", 以便解决超大型叶片抗破坏 性强风能力较差的缺陷。 同时也对公开号为 US005765990A的 "用于产生电能的风轮"、 公 开号为 DE20213062U1的 "包含可组合装置的能源获取风力设备"等存在的叶片不适应大 型风力发电机的问题, 设计出专利号为 CN101603509A的"加强型风力发电机", 该机设有 转盘式平台和组装其上的叶轮组, 聚风罩, 叶轮组中心轴两端利用轴承、 轴承座组装在转 盘式平台上所设置的中心轴支架上, 主叶片根部固定中心轴上的叶片连接套上。 叶尖固定 在叶轮组的轮缘上, 叶片中部固定于叶轮中间所设传动支撑圈上, 副叶片设置传动支撑圈 与轮缘之间。 传动支撑圈与发电机轮直接啮合, 中心轴两端分别固定斜拉索固定盘, 斜拉 索的一端与斜拉索固定盘连接, 另一端穿过传动支撑圈与轮缘固定在一起, 叶片中间另设 有叶片斜拉索与斜拉索固定盘连接在一起。 该风力发电机虽然利用斜拉索为大型叶轮制造 提供了安全技术保障, 从根本上解决了现有大型风力发电机存在的上述问题, 但因其转盘 式平台没有设计偏航驱动装置, 叶片连接方式及变浆、 刹车等功能还需完善, 故还存在以 下缺陷: 其一是发电机所处位置高、 稳定性差, 实施难度大; 其二是主、 副叶片分别保留 了叶片根部及叶片中部, 尤其是副叶片设置在传动支撑圈与轮缘之间实施难度大、 机械强
度难以保障。 究其原因主要是由于采用的是单体结构的轮缘, 只有一个支撑点, 所以无法 将叶片设置在轮缘上。 The inventors have disclosed the "anti-high wind wind generator" with the bulletin number CN100467862C according to the problems of the mechanical strength difference, the difficulty of implementation and the practicability of the existing large-scale wind power generator, in order to solve the anti-destructive strong wind of the super large blade. A defect with poor ability. At the same time, the patents of the "Wind Wheel for Generating Electric Energy" with the publication number US005765990A and the "Energy Acquisition Wind Equipment with Combinable Devices" with the publication number DE20213062U1 are not suitable for large wind turbines. No. CN101603509A "Enhanced Wind Turbine", which is equipped with a rotary table platform and an impeller assembly assembled thereon. The air hood is provided. The two ends of the central shaft of the impeller group are assembled on the rotary table by bearings and bearing blocks. On the central shaft bracket, the main blade root is fixed to the blade connection sleeve on the central shaft. The tip of the blade is fixed on the rim of the impeller group, and the middle portion of the blade is fixed on the transmission support ring provided in the middle of the impeller, and the auxiliary blade is disposed between the transmission support ring and the rim. The transmission support ring directly meshes with the generator wheel, and the two ends of the central shaft respectively fix the stay cable fixing disc, one end of the stay cable is connected with the stay cable fixing disc, and the other end is fixed to the rim through the transmission support ring, the blade In the middle, a blade stay cable is connected with the stay cable fixing plate. Although the wind turbine uses the stay cable to provide safety technical guarantee for the manufacture of large impellers, it fundamentally solves the above problems of the existing large-scale wind turbines, but because the rotary table platform does not have a yaw drive device, the blade connection The methods, as well as the functions of pulping and braking, need to be improved, so the following defects are also present: First, the generator is in a high position, the stability is poor, and the implementation is difficult; the second is that the main and auxiliary blades respectively retain the blade root and the middle of the blade. Especially, the sub-blade is arranged between the transmission support ring and the rim, which is difficult and mechanically strong. It is difficult to guarantee. The main reason is that the rim of the single structure is used, and there is only one support point, so the blade cannot be placed on the rim.
综上所述, 现有大型风力发电机的叶片普遍存在设置不合理, 叶片效率低, 实施难度 大, 机械强度难以保障等问题, 另外, 根据理论计算, 相同单位面积的叶片尖部对于叶轮 所产生的扭力, 远大于叶片中部及根部, 因此, 现有叶片的结构不适合高效风力发电机的 风载要求。 In summary, the existing large-scale wind turbine blades generally have unreasonable settings, low blade efficiency, difficult implementation, and difficulty in securing mechanical strength. In addition, according to theoretical calculations, the blade tip of the same unit area is for the impeller. The resulting torque is much larger than the middle and root of the blade. Therefore, the structure of the existing blade is not suitable for the wind load requirements of high efficiency wind turbines.
【发明内容】 [Summary of the Invention]
本发明的目的是提供一种全叶尖风力发电机, 从根本上解决了现有风力发电机存在的 叶片效率低, 机械强度差、 实施难度大等问题, 其轮体设计合理, 叶片结构简单, 具有完 备的液压偏航、 变桨功能, 全叶尖受力均匀, 便于安装、 调整, 使用安全可靠, 延长了整 机使用寿命。 The object of the present invention is to provide a full-tip wind turbine generator, which fundamentally solves the problems of low efficiency, poor mechanical strength, and difficulty of implementation of existing wind turbine generators, and has reasonable wheel design and simple blade structure. With complete hydraulic yaw and pitch function, the whole blade tip is evenly stressed, easy to install and adjust, safe and reliable to use, and prolongs the service life of the whole machine.
本发明所采用的技术方案是: 该全叶尖风力发电机包括固定在塔筒上的偏航平台, 组 装在偏航平台上的有由机架、 轴承座、 空心转轴和斜拉索支撑的水平轴叶轮组, 发电机及 液压管路, 其技术要点是: 所述水平轴叶轮组包括利用三角珩架连接两个外轮缘和一个内 轮缘构成的轮体, 通过叶片变桨装置组装在轮体外轮缘上的叶片, 以及固定在轮体外周凸 出叶片高度的传动刹车一体圈; 轮体的内轮缘与空心转轴上的牵引法兰之间利用斜拉索支 撑连接在一起, 叶片变桨装置组装在轮体外轮缘上, 叶片变桨装置上的叶片底端采用铰链 或铰接轴构成叶片铰接端, 叶片上端作为活动支撑端与液压缸的活塞杆端铰接在一起, 并 通过活塞杆的伸縮完成叶片的变桨; 空心转轴的两侧设置主刹车盘, 分别固定在轴承座或 机架上的主刹车钳夹持在主刹车盘的两侧; 偏航平台的上、 下台盘之间设有偏航轴承、 限 位架及使上台盘绕下台盘中心转动的液压马达驱动的传动装置; 偏航轴承包括固定在上台 盘底部的带有内齿圈的轴承上圈, 固定在下台盘上部的轴承下圈, 在轴承上、 下圈沟道内 设置有滚动轮 , 滚动轮轴的两端通过轴承组装在轴承上圈所延伸出的支撑架上。 The technical solution adopted by the invention is: the full-tip wind turbine comprises a yaw platform fixed on the tower, and the yaw platform is supported by the frame, the bearing seat, the hollow shaft and the stay cable. The horizontal axis impeller group, the generator and the hydraulic line, the technical points are: The horizontal axis impeller group comprises a wheel body composed of a triangular truss connecting two outer rims and one inner rim, assembled by a blade pitch device a blade on the outer rim of the wheel, and a driving brake integral ring fixed at a height of the outer periphery of the wheel; the inner rim of the wheel body and the traction flange on the hollow shaft are connected by a stay cable support, the blade The pitching device is assembled on the outer rim of the wheel, and the bottom end of the blade on the blade pitching device adopts a hinge or an articulated shaft to form a hinged end of the blade, and the upper end of the blade is used as a movable supporting end to be hinged with the piston rod end of the hydraulic cylinder, and passes through the piston The telescopic expansion of the rod completes the pitching of the blade; the main brake disc is arranged on both sides of the hollow shaft, and the main brake caliper fixed on the bearing housing or the frame is clamped on the main brake disc Between the upper and lower plates of the yaw platform, there are yaw bearings, a limit frame and a hydraulic motor-driven transmission for rotating the upper plate around the center of the lower plate; the yaw bearing is fixed at the bottom of the upper plate The upper ring of the inner ring gear is fixed to the lower ring of the upper part of the lower plate. The rolling wheel is arranged in the upper and lower ring channels of the bearing. The two ends of the rolling wheel shaft are assembled by bearings on the support frame extended by the upper ring of the bearing. .
所述偏航平台至少由三根塔筒支撑。 The yaw platform is supported by at least three towers.
所述液压管路中液压油管的输出管通过固定在轴承座外壳上的液压旋转接头插入空心 转轴, 从空心转轴的油管通孔导出至轮体上, 液压油管的回油管从空心转轴的油管通孔导 入, 通过固定在轴承座外壳上的液压旋转接头导出空心转轴, 连接回油箱。 The output pipe of the hydraulic oil pipe in the hydraulic pipeline is inserted into the hollow rotating shaft through a hydraulic rotary joint fixed on the bearing housing, and is led out from the oil pipe through hole of the hollow rotating shaft to the wheel body, and the oil return pipe of the hydraulic oil pipe passes through the oil pipe of the hollow rotating shaft. The hole is introduced, and the hollow rotating shaft is led out by a hydraulic rotary joint fixed to the bearing housing, and is connected to the oil tank.
所述液压管路的液压油管, 输出管通过固定在轴承座外壳上的液压旋转接头插入空心 转轴, 从空心转轴的油管通孔导出至轮体上, 轮体上的回油管从空心转轴的油管通孔导入, 通过固定在轴承座外壳上的液压旋转接头导出空心转轴, 连接回油箱。 The hydraulic oil pipe of the hydraulic pipe, the output pipe is inserted into the hollow rotating shaft through a hydraulic rotary joint fixed on the bearing housing, and is led out from the oil pipe through hole of the hollow rotating shaft to the wheel body, and the oil return pipe on the wheel body is from the oil pipe of the hollow rotating shaft The through hole is introduced, and the hollow rotating shaft is led out through a hydraulic rotary joint fixed to the bearing housing, and is connected to the oil tank.
所述传动刹车一体圈的两侧设置有固定在偏航平台上的副刹车钳。 A pair of brake calipers fixed on the yaw platform are disposed on both sides of the integrated drive brake ring.
所述传动刹车一体圈的外周与固定在偏航平台上的传动轮式发电机的传动轮紧密接
触。 The outer circumference of the driving brake integral ring is closely connected with the transmission wheel of the transmission wheel generator fixed on the yaw platform Touch.
所述传动刹车一体圈的外周通过隔磁绝缘垫片固定有永磁体作为发电机转子, 与固定 在偏航平台上的机座内作为定子的绕线组构成永磁直驱发电机。 The outer circumference of the driving brake integral ring is fixed with a permanent magnet as a generator rotor through a magnetic isolation insulating spacer, and a permanent magnet direct drive generator is formed as a winding group of the stator in a base fixed on the yaw platform.
本发明具有的优点及积极效果是: 全叶尖风力发电机顾名思意就是放弃传统轮体气动 性为零的叶片根部以及气动性较差的叶片中部, 全部采用高效率的叶片尖部, 其轮体空心 转轴两端的牵引法兰与三角珩架内轮缘之间所设斜拉索支撑, 取代了传统轮体叶根及叶中 的支撑作用, 叶片全部设置于三角珩架外轮缘上。 因多条斜拉索横截面之和还不及现有传 统轮体叶根的二分之一, 故其轮体设计合理, 叶片结构简单。 全叶尖受力均匀, 既减少了 轮体阻风面, 又增加了风载高效的叶尖面积, 使用安全可靠、 也延长了整机使用寿命。 它 从根本上解决了现有风力发电机叶片粗大笨重、 效率低下、 机械强度差、 结构复杂等问题。 从古至今人们均采用传统轮体结构, 来确保其强度。 由于本发明轮体叶片的数量及单位面 积大幅增加, 所以与现有技术比, 尽管叶轮直径相同, 但扭矩可以成倍增加。 由于三角珩 架外轮缘上所设的叶片变桨装置的液压缸伸縮即可完成变桨的目的, 因此, 具有完备的液 压偏航、 变桨功能, 且操作简单快捷。 传动刹车一体圈直接驱动传动轮式发电机或驱动永 磁直驱发电机, 无需变速箱, 调速范围宽并可做为副盘刹车盘。 刹车时, 设置在偏航平台 上的副刹车钳夹紧传动刹车一体圈两侧, 即能实现刹车的目的。 The advantages and positive effects of the present invention are as follows: The full-tip wind turbine is as the name suggests to abandon the blade root of the conventional wheel body with zero aerodynamics and the middle of the blade with poor aerodynamicity, all adopting a high-efficiency blade tip, the wheel The cable-stayed support between the traction flange at both ends of the hollow shaft and the inner rim of the triangular truss replaces the support of the traditional wheel body and the blade, and the blades are all disposed on the outer rim of the triangular truss. Because the cross-section of multiple cable stays is less than one-half of the existing conventional wheel roots, the wheel design is reasonable and the blade structure is simple. The whole blade tip is evenly stressed, which not only reduces the windward surface of the wheel body, but also increases the area of the blade tip with high efficiency. It is safe and reliable, and also prolongs the service life of the whole machine. It fundamentally solves the problems of thick and bulky, inefficient, poor mechanical strength and complicated structure of existing wind turbine blades. Since ancient times, people have used traditional wheel structures to ensure their strength. Since the number and unit area of the wheel blades of the present invention are greatly increased, the torque can be multiplied by the same amount as the prior art, although the impeller diameter is the same. Since the hydraulic cylinder of the blade pitching device provided on the outer rim of the triangular truss can be expanded and contracted, the purpose of pitching can be completed, and therefore, the hydraulic yaw and pitch function are completed, and the operation is simple and quick. The drive brake integrated ring directly drives the drive wheel generator or drives the permanent magnetic direct drive generator, which does not require a gearbox, and has a wide speed range and can be used as a secondary brake disc. When braking, the auxiliary brake calipers on the yaw platform clamp the sides of the drive brake integrated ring, which can achieve the purpose of braking.
【附图说明】 [Description of the Drawings]
以下结合附图对本发明作进一步描述。 The invention is further described below in conjunction with the drawings.
图 1是本发明的一种具体结构示意图; Figure 1 is a schematic view of a specific structure of the present invention;
图 2是图 1沿 A-A线的局部放大剖视图; Figure 2 is a partial enlarged cross-sectional view taken along line A-A of Figure 1;
图 3是本发明的一种永磁直驱发电的具体结构示意图。 3 is a schematic view showing the specific structure of a permanent magnet direct-drive power generation according to the present invention.
图中序号说明: 1塔筒、 2偏航轴承、 3偏航平台、 4传动轮式发电机、 5传动刹车一 体圈、 6叶片、 7机架、 8空心转轴、 9轴承座、 10内轮缘、 11外轮缘、 12叶片变桨装置、 13斜拉索、 14牵引法兰、 15主刹车钳、 16主刹车盘、 17液压油管、 18液压旋转接头、 19 油管通孔、 20三角珩架、 21液压马达、 22限位架、 23叶片铰接端、 24叶片活动支撑端、 25导向滑道、 26隔磁绝缘垫片、 27永磁体、 28 绕线组、 29机座、 30叶片支撑架。 The serial number in the figure shows: 1 tower, 2 yaw bearing, 3 yaw platform, 4 drive wheel generator, 5 drive brake integrated ring, 6 blades, 7 racks, 8 hollow shafts, 9 bearing seats, 10 inner wheels Edge, 11 outer rim, 12 blade pitcher, 13 stay cable, 14 traction flange, 15 main brake caliper, 16 main brake disc, 17 hydraulic hose, 18 hydraulic rotary joint, 19 tubing through hole, 20 triangular truss , 21 hydraulic motor, 22 limit frame, 23 blade hinged end, 24 blade movable support end, 25 guide slide, 26 magnetic isolation gasket, 27 permanent magnet, 28 winding group, 29 base, 30 blade support .
【具体实施方式】 【detailed description】
根据图 1〜3详细说明本发明的具体结构。该全叶尖风力发电机包括固定在塔筒 1上的 偏航平台 3, 组装在偏航平台 3上的有由机架 7、 轴承座 9、 空心转轴 8和斜拉索 13支撑 的水平轴叶轮组, 组装在偏航平台 3上的发电机及液压管路等部件。 The specific structure of the present invention will be described in detail based on Figs. The full-tip wind turbine includes a yaw platform 3 fixed to the tower 1 and assembled on the yaw platform 3 with a horizontal axis supported by the frame 7, the bearing housing 9, the hollow shaft 8 and the stay cable 13. The impeller group, the generator and hydraulic piping assembled on the yaw platform 3.
其中偏航平台 3至少由三根塔筒 1支撑。 具体实施方法是: 将每根塔筒 1的第一节套 入偏航平台 3的预留孔, 并与地面或水平面基础固定。 在塔筒 1的内壁设置吊机 (图中未
示出) 互助升高后, 再吊装机架 7和组装水平轴叶轮组。 借助多个塔筒 1的支撑, 通过提 升与顶升相结合将偏航平台 3及以上的装置升至塔筒 1的顶端固定, 只需小型吊车, 即可 突破大型吊机吊装高度极限的制约。 偏航平台 3 的上、 下两台盘之间设有偏航轴承 2、 限 位架 22及使上台盘绕下台盘中心转动的液压马达 21驱动的传动装置。 偏航轴承 2包括固 定在上台盘底部的带有内齿圈的轴承上圈, 固定在下台盘上部的轴承下圈, 在轴承上、 下 圈沟道内设置有滚动轮 , 滚动轮轴的两端通过轴承(图中未示出)组装在轴承上圈所延伸 出的支撑架上。 液压马达 21驱动的传动装置是由偏航轴承 2的内齿圈与液压马达 21驱动 的齿轮相啮合构成的。 The yaw platform 3 is supported by at least three towers 1. The specific implementation method is: inserting the first section of each tower 1 into the reserved hole of the yaw platform 3, and fixing it to the ground or horizontal foundation. A crane is placed on the inner wall of the tower 1 (not shown) Shown) After the mutual aid is raised, the rack 7 is assembled and the horizontal axis impeller assembly is assembled. With the support of the plurality of towers 1, the yaw platform 3 and above is raised to the top end of the tower 1 by the combination of lifting and jacking, and only a small crane can break through the limitation of the height limit of the large crane. . Between the upper and lower plates of the yaw platform 3, a yaw bearing 2, a limit frame 22 and a transmission device driven by a hydraulic motor 21 for rotating the upper plate around the center of the lower plate are provided. The yaw bearing 2 includes a bearing upper ring with an internal ring gear fixed at the bottom of the upper platen, a bearing lower ring fixed at the upper part of the lower platen, and a rolling wheel is disposed in the upper and lower ring channels of the bearing, and both ends of the rolling wheel shaft pass A bearing (not shown) is assembled on the support frame from which the upper ring of the bearing extends. The transmission driven by the hydraulic motor 21 is constituted by the meshing of the inner ring gear of the yaw bearing 2 and the gear driven by the hydraulic motor 21.
组装在偏航平台 3上的水平轴叶轮组包括利用三角珩架 20连接两个外轮缘 11和一个 内轮缘 10构成的珩架式结构的轮体,通过叶片变桨装置 12组装在轮体外轮缘 11上的叶片 6, 以及固定在轮体外周凸出叶片 6高度的支撑架顶端的传动刹车一体圈 5等件。轮体的空 心转轴 8利用两端的轴承组装在轴承座 9上, 沿空心转轴 8的两端分别对称固定有主刹车 盘 16和牵引法兰 14。 利用斜拉索 13将轮体的内轮缘 10与空心转轴 8上的牵引法兰 14支 撑连接在一起。斜拉索 13可按自行车辐条或摩天轮斜拉索的编排方式, 一端固定连接在牵 引法兰 14上, 另一端固定连接在轮体的内轮缘 10上。 实际安装时, 可将相对应部位的斜 拉索 13穿插固定, 即斜拉索 13穿越所斜拉位置的牵引法兰 14的孔, 连至对应端牵引法兰 14的孔内固定, 其目的是为了平衡斜拉索 13固定端对空心转轴 8产生的轴向力。 The horizontal axis impeller assembly assembled on the yaw platform 3 includes a truss-structured wheel body formed by connecting the two outer rims 11 and one inner rim 10 by means of a triangular truss 20, which is assembled outside the wheel by the blade pitching device 12. The blade 6 on the rim 11 and the transmission brake integral ring 5 and the like which are fixed to the top end of the support frame which protrudes from the outer periphery of the wheel. The hollow shaft of the wheel body is assembled on the bearing housing 9 by bearings at both ends, and the main brake disc 16 and the traction flange 14 are symmetrically fixed at both ends of the hollow shaft 8 respectively. The inner rim 10 of the wheel body is coupled to the traction flange 14 on the hollow shaft 8 by means of a stay cable 13. The stay cable 13 can be arranged in a manner of bicycle spokes or a tilting cable of a Ferris wheel, one end of which is fixedly connected to the traction flange 14 and the other end of which is fixedly connected to the inner rim 10 of the wheel body. In actual installation, the corresponding cable staying cable 13 can be inserted and fixed, that is, the stay cable 13 passes through the hole of the traction flange 14 in the obliquely pulled position, and is fixed to the hole of the corresponding end traction flange 14 for the purpose. It is to balance the axial force generated by the fixed end of the stay cable 13 to the hollow shaft 8.
在轮体两个平行的外轮缘 11上均匀组装多个叶片变桨装置 12。 各叶片变桨装置 12包 括固定在外轮缘 11上的连接座 (形状可按变桨要求设置)、 叶片铰接端 23、 叶片活动支撑 端 24、 导向滑道 25和叶片支撑架 30等件。 叶片支撑架 30可根据需要设置在连接座上。 叶片变桨装置 12上的叶片 6底端可以采用铰链或铰接轴 (图中未示出) 构成叶片铰接端 23, 叶片 6上端作为活动支撑端 24与液压缸(图中未示出) 的活塞杆端铰接在一起, 并通 过活塞杆的伸縮完成叶片 6的变桨; 空心转轴 8的两侧设置主刹车盘 16, 分别固定在轴承 座 9或机架 7上的主刹车钳 15夹持在主刹车盘 16的两侧。刹车时, 主刹车钳 15夹紧主刹 车盘 16的两侧, 实现刹车的目的。 A plurality of blade pitching devices 12 are evenly assembled on the two parallel outer rims 11 of the wheel body. Each of the blade pitching devices 12 includes a joint fixed to the outer rim 11 (the shape can be set according to pitch requirements), a blade hinge end 23, a blade movable support end 24, a guide slide 25 and a blade support frame 30, and the like. The blade support frame 30 can be placed on the connector as needed. The bottom end of the blade 6 on the blade pitching device 12 may constitute a blade hinge end 23 by means of a hinge or hinge shaft (not shown), and the upper end of the blade 6 serves as a movable supporting end 24 and a piston of a hydraulic cylinder (not shown). The rod ends are hinged together, and the pitch of the blades 6 is completed by the expansion and contraction of the piston rods; the main brake discs 16 are disposed on both sides of the hollow shaft 8, and the main brake calipers 15 respectively fixed on the bearing housing 9 or the frame 7 are clamped at Both sides of the main brake disc 16. When braking, the main brake caliper 15 clamps the two sides of the main brake disc 16 to achieve the purpose of braking.
根据叶片变桨装置 12的叶片铰接端 23、 叶片活动支撑端 24的设置, 叶片 6连接与变 桨可有二种实施方案, 本实施例中以下二方案均指面对叶轮顺时针旋转而言。 方案一:叶片 铰接端 23采用铰链或铰接轴固定在叶片 6的底端, 叶片上端为活动支撑端 24, 液压缸的 活塞杆端铰接在叶片活动支撑端 24, 并通过活塞杆的伸縮带动叶片 6绕叶片铰接端 23翻 转一定角度, 完成叶片 6的变桨。 方案二: 叶片铰接端 23采用铰链或铰接轴固定在叶片 6 的左端, 叶片右端为活动支撑端 24设置液压缸, 液压缸的活塞杆端铰接在叶片活动端 24, 并通过活塞杆的伸縮, 使叶片活动支撑端 24沿导向滑道 25移动的同时, 带动叶片 6绕叶
片铰接端 23转动, 完成叶片 6的变桨。 According to the blade hinge end 23 of the blade pitching device 12 and the blade movable supporting end 24, the blade 6 can be connected and pitched in two embodiments. In the present embodiment, the following two solutions all refer to the clockwise rotation of the impeller. . Solution 1: The hinged end 23 of the blade is fixed to the bottom end of the blade 6 by a hinge or an articulated shaft. The upper end of the blade is a movable supporting end 24, and the piston rod end of the hydraulic cylinder is hinged at the movable supporting end 24 of the blade, and the blade is driven by the expansion and contraction of the piston rod. 6 is turned around the blade hinge end 23 by a certain angle to complete the pitching of the blade 6. Solution 2: The blade hinge end 23 is fixed to the left end of the blade 6 by a hinge or a hinge shaft, and the right end of the blade is provided with a hydraulic cylinder for the movable support end 24, and the piston rod end of the hydraulic cylinder is hinged at the movable end 24 of the blade, and is extended and contracted by the piston rod. While moving the blade movable supporting end 24 along the guiding chute 25, driving the blade 6 around the blade The hinged end 23 of the piece rotates to complete the pitching of the blade 6.
本发明的发电机可采用二种实施方案, 方案一: 如图 1所示,传动刹车一体圈 5的外周 与固定在偏航平台 3上的多台传动轮式发电机 4的传动轮紧密接触。 传动刹车一体圈 5将 动力传送给传动轮式发电机, 以达到发电的目的。 方案二: 如图 3所示,传动刹车一体圈 5 的外周通过隔磁绝缘垫片 26固定有永磁体 27作为发电机转子, 与固定在偏航平台 3上的 机座 29内作为定子的绕线组 28构成永磁直驱发电机。 传动刹车一体圈 5将动力传送给永 磁直驱发电机, 以达到发电的目的。 组装在永磁直驱发电机的机座 29内的定子绕线组 28、 转子永磁体 27和叶片 6的基本技术参数及其采用的规格和数量,应参照现有发电机的规格 要求和根据实际使用需要确定。 本实施例中定子的绕线组 28及机座 29为开放式结构, 长 度不超出偏航平台 3, 与外轮缘 11上所设永磁体 27旋转弧度一致、 设置高度一致, 绕线 组 28上设有防护膜。 The generator of the present invention can adopt two embodiments. Solution 1: As shown in FIG. 1, the outer circumference of the transmission brake integrated ring 5 is in close contact with the transmission wheels of the plurality of transmission wheel generators 4 fixed on the yaw platform 3. . The drive brake integrated ring 5 transmits power to the drive wheel generator to achieve power generation. Solution 2: As shown in FIG. 3, the outer circumference of the transmission brake integral ring 5 is fixed with a permanent magnet 27 as a generator rotor through a magnetic isolation spacer 26, and is wound around the base 29 fixed on the yaw platform 3 as a stator. The wire set 28 constitutes a permanent magnet direct drive generator. The drive brake integrated ring 5 transmits power to the permanent magnetic direct drive generator to achieve the purpose of power generation. The basic technical parameters of the stator winding group 28, the rotor permanent magnet 27 and the blade 6 assembled in the frame 29 of the permanent magnet direct-drive generator and the specifications and quantities thereof shall be referred to the specifications and basis of the existing generator. Actual use needs to be determined. In this embodiment, the winding group 28 and the frame 29 of the stator are of an open structure, and the length does not exceed the yaw platform 3, and the permanent magnets 27 provided on the outer rim 11 have the same arc rotation and the height is uniform, and the winding group 28 is Features a protective film.
当传动刹车一体圈 5作为副刹车盘时, 传动刹车一体圈 5的两侧设置有固定在偏航平 台上的副刹车钳 (图中未示出)。 刹车时, 副刹车钳夹紧作为副刹车盘的传动刹车一体圈 5 的两侧,实现刹车的目的。 When the transmission brake integrated ring 5 is used as the auxiliary brake disk, the brake calipers 5 are provided on both sides with a secondary brake caliper (not shown) fixed on the yaw platform. When braking, the auxiliary brake caliper clamps the two sides of the transmission brake integral ring 5 as the auxiliary brake disc to achieve the purpose of braking.
液压管路固定在机架 7及轴承座 9外壳上。液压管路中液压油管 17的输出管及回油管 (图中未示出) 与原动机、 液压泵、 油箱(图中未示出)连通。 液压油管 17输出管通过液 压旋转接头 18插入空心转轴 8, 从空心转轴 8的油管通孔 19导出至轮体上, 直接连接叶 片变桨装置 12的液压缸。 液压油管的回油管从空心转轴 8的油管通孔 19导入, 通过固定 在轴承座 9外壳上的液压旋转接头 18导出空心转轴 8, 连接回油箱。 液压马达 21的液压 管路与原动机、 液压泵、 油箱 (图中未示出) 直接连通。 The hydraulic lines are fixed to the frame 7 and the housing 9 housing. The output pipe and the return pipe (not shown) of the hydraulic oil pipe 17 in the hydraulic line are in communication with the prime mover, the hydraulic pump, and the oil tank (not shown). The hydraulic oil pipe 17 is inserted into the hollow shaft 8 through the hydraulic rotary joint 18, and is led out from the oil pipe through hole 19 of the hollow rotary shaft 8 to the wheel body, and is directly connected to the hydraulic cylinder of the blade pitch device 12. The oil return pipe of the hydraulic oil pipe is introduced from the oil pipe through hole 19 of the hollow rotary shaft 8, and the hollow rotary shaft 8 is connected to the oil tank through a hydraulic rotary joint 18 fixed to the outer casing of the bearing housing 9. The hydraulic circuit of the hydraulic motor 21 is in direct communication with the prime mover, the hydraulic pump, and the fuel tank (not shown).
构成轮体珩架式结构的两个外轮缘 11和一个内轮缘 10、 偏航轴承 2及偏航平台 3等 大型部件均可分段制造, 以便于分段运输, 现场组合安装、 调整。
The two outer rims 11 and one inner rim 10, the yaw bearing 2 and the yaw platform 3, which constitute the wheel truss structure, can be manufactured in sections to facilitate sectional transportation and on-site assembly and adjustment.
Claims
1、 一种全叶尖风力发电机, 包括固定在塔筒上的偏航平台, 组装在偏航平台上的由 机架、轴承座、空心转轴和斜拉索支撑的水平轴叶轮组,发电机及液压管路,其特征在于: 所述水平轴叶轮组包括利用三角珩架连接两个外轮缘和一个内轮缘构成的轮体,通过叶片 变桨装置组装在轮体外轮缘上的叶片,以及固定在轮体外周凸出叶片高度的传动刹车一体 圈;轮体的内轮缘与空心转轴上的牵引法兰之间利用斜拉索支撑连接在一起, 叶片变桨装 置组装在轮体外轮缘上, 叶片变桨装置上的叶片底端采用铰链或铰接轴构成叶片铰接端, 叶片上端作为活动支撑端与液压缸的活塞杆端铰接在一起,并通过活塞杆的伸縮完成叶片 的变桨;空心转轴的两侧设置主刹车盘,分别固定在轴承座或机架上的主刹车钳夹持在主 刹车盘的两侧; 偏航平台的上、下台盘之间设有偏航轴承、 限位架及使上台盘绕下台盘中 心转动的液压马达驱动的传动装置;偏航轴承包括固定在上台盘底部的带有内齿圈的轴承 上圈, 固定在下台盘上部的轴承下圈, 在轴承上、 下圈沟道内设置有滚动轮 , 滚动轮轴 的两端通过轴承组装在轴承上圈所延伸出的支撑架上。 1. A full-tip wind turbine, including a yaw platform fixed on the tower, a horizontal-axis impeller assembly assembled on the yaw platform supported by a frame, a bearing seat, a hollow rotating shaft and a cable stay, and generates electricity machine and hydraulic pipeline, characterized in that: the horizontal axis impeller assembly includes a wheel body composed of two outer rims and an inner rim connected by a triangular honing frame, and the blades are assembled on the outer rim of the wheel through a blade pitch device. , and a transmission brake integrated ring fixed on the periphery of the wheel body at the height of the protruding blades; the inner rim of the wheel body and the traction flange on the hollow rotating shaft are connected together using stay cable support, and the blade pitch changing device is assembled outside the wheel body. On the rim, the bottom end of the blade on the blade pitch device uses a hinge or a hinge shaft to form the hinged end of the blade. The upper end of the blade serves as a movable support end and is hinged with the piston rod end of the hydraulic cylinder, and the blade changes are completed through the expansion and contraction of the piston rod. Propellers; main brake discs are provided on both sides of the hollow rotating shaft, and main brake calipers fixed on the bearing seat or frame are clamped on both sides of the main brake disc; a yaw bearing is provided between the upper and lower platform of the yaw platform , limit frame and a transmission device driven by a hydraulic motor that rotates the upper platform around the center of the lower platform; the yaw bearing includes an upper bearing ring with an internal gear ring fixed at the bottom of the upper platform, and a lower bearing ring fixed at the upper part of the lower platform. Rolling wheels are provided in the channels of the upper and lower rings of the bearing, and the two ends of the rolling wheel shaft are assembled on the support frame extended from the upper ring of the bearing through the bearings.
2、 根据权利要求 1所述的全叶尖风力发电机, 其特征在于: 所述偏航平台至少由三 根塔筒支撑。 2. The full-tip wind turbine according to claim 1, characterized in that: the yaw platform is supported by at least three towers.
3、 根据权利要求 1所述的全叶尖风力发电机, 其特征在于: 所述液压管路中液压油 管的输出管通过固定在轴承座外壳上的液压旋转接头插入空心转轴,从空心转轴的油管通 孔导出至轮体上,液压油管的回油管从空心转轴的油管通孔导入,通过固定在轴承座外壳 上的液压旋转接头导出空心转轴, 连接回油箱。 3. The full-tip wind turbine according to claim 1, characterized in that: the output pipe of the hydraulic oil pipe in the hydraulic pipeline is inserted into the hollow rotating shaft through a hydraulic rotary joint fixed on the bearing housing shell, and is connected from the hollow rotating shaft. The oil pipe through hole is led to the wheel body, and the oil return pipe of the hydraulic oil pipe is introduced from the oil pipe through hole of the hollow rotating shaft. It is led out of the hollow rotating shaft through the hydraulic rotary joint fixed on the bearing housing shell and connected to the oil return tank.
4、 根据权利要求 1所述的全叶尖风力发电机, 其特征在于: 所述传动刹车一体圈的 两侧设置有固定在偏航平台上的副刹车钳。 4. The full-tip wind turbine according to claim 1, characterized in that: auxiliary brake calipers fixed on the yaw platform are provided on both sides of the transmission brake integrated ring.
5、 根据权利要求 1所述的全叶尖风力发电机, 其特征在于: 所述传动刹车一体圈的 外周与固定在偏航平台上的传动轮式发电机的传动轮紧密接触。 5. The full-tip wind turbine according to claim 1, characterized in that: the outer periphery of the transmission brake integrated ring is in close contact with the transmission wheel of the transmission wheel generator fixed on the yaw platform.
6、 根据权利要求 1所述的全叶尖风力发电机, 其特征在于: 所述传动刹车一体圈的 外周通过隔磁绝缘垫片固定永磁体作为发电机转子,与固定在偏航平台上的机座内作为定 子的绕线组构成永磁直驱发电机。 6. The full blade tip wind turbine according to claim 1, characterized in that: the outer periphery of the transmission brake integrated ring is fixed with a magnetic isolation insulating gasket as a generator rotor, and is fixed on the yaw platform. The winding group as the stator in the machine base constitutes a permanent magnet direct drive generator.
7、 根据权利要求 1所述的全叶尖风力发电机, 其特征在于: 将相对应部位的所述斜 拉索, 穿越所斜拉位置的牵引法兰的孔, 连至对应端牵引法兰的孔内固定。
7. The full-tip wind turbine according to claim 1, characterized in that: the cable-stayed cable at the corresponding part is passed through the hole of the traction flange at the cable-stayed position and connected to the corresponding end traction flange. fixed in the hole.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310109970.0 | 2013-04-01 | ||
CN201310109970.0A CN103147926B (en) | 2013-04-01 | 2013-04-01 | Full-blade-tip wind driven generator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014161215A1 true WO2014161215A1 (en) | 2014-10-09 |
Family
ID=48546187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/075238 WO2014161215A1 (en) | 2013-04-01 | 2013-05-07 | Wind turbine with full blade tips |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN103147926B (en) |
WO (1) | WO2014161215A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109340043A (en) * | 2018-12-10 | 2019-02-15 | 王林 | Leafy variable pitch ferris wheel type horizontal-shaft wind turbine |
CN109973292A (en) * | 2019-03-25 | 2019-07-05 | 国电联合动力技术有限公司 | Wind generator set blade, impeller and wind power generating set |
CN110005575B (en) * | 2019-04-17 | 2024-06-14 | 戚永维 | Full-blade-tip impeller type double-drive efficient wind driven generator |
CN110030147B (en) * | 2019-04-17 | 2024-06-04 | 戚永维 | Double-shaft variable-pitch full-blade-tip impeller of wind driven generator |
CN110043425B (en) * | 2019-04-24 | 2020-12-29 | 河海大学 | Active yawing system of offshore floating type multi-wind-wheel wind turbine |
CN113107255B (en) * | 2021-04-12 | 2021-11-12 | 中国铁塔股份有限公司黑龙江省分公司 | Tower mast capital construction device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006077747A (en) * | 2004-09-01 | 2006-03-23 | Iwata Kozo | Multiple single-blade wind power generator |
CN201152235Y (en) * | 2008-01-23 | 2008-11-19 | 上海荟懿环保科技有限公司 | Double locomotive wind-driven electric generator |
WO2011007274A1 (en) * | 2009-07-13 | 2011-01-20 | Leviathan Energy Wind Lotus Ltd. | Telecom tower vertical axis wind turbines |
CN101603509B (en) * | 2009-07-17 | 2011-08-31 | 戚永维 | Reinforced type wind-driven generator |
CN202176458U (en) * | 2011-08-03 | 2012-03-28 | 陈革 | High-efficiency wind power generation device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2210001C1 (en) * | 2001-11-28 | 2003-08-10 | Плешанов Евгений Васильевич | Windmill-electric power unit |
US6664655B2 (en) * | 2001-12-31 | 2003-12-16 | Charles S. Vann | Multaxel windmill |
CN1195157C (en) * | 2002-11-25 | 2005-03-30 | 陈永兵 | Flexible blade windmill |
DE10348981B4 (en) * | 2003-10-22 | 2009-04-09 | Eurocopter Deutschland Gmbh | Rotor, in particular for a rotary aircraft |
MX2007011249A (en) * | 2005-03-15 | 2007-10-18 | Clipper Windpower Technology | Tension wheel in a rotor system for wind and water turbines. |
CN101298863A (en) * | 2008-06-26 | 2008-11-05 | 欧子文 | Blade oscillating stroke hydraulic control apparatus |
WO2012003308A2 (en) * | 2010-07-01 | 2012-01-05 | E-Net, Llc | Wind turbine with extended blades |
CN102477938A (en) * | 2010-11-29 | 2012-05-30 | 陆中源 | Wind kinetic energy receiving conversion device |
CN201943887U (en) * | 2011-03-11 | 2011-08-24 | 台湾穗高工业股份有限公司 | Rotating wheel structure of wind driven generator for fixing blades |
CN203098157U (en) * | 2013-04-01 | 2013-07-31 | 戚永维 | Full-blade-tip wind power generator |
-
2013
- 2013-04-01 CN CN201310109970.0A patent/CN103147926B/en active Active
- 2013-05-07 WO PCT/CN2013/075238 patent/WO2014161215A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006077747A (en) * | 2004-09-01 | 2006-03-23 | Iwata Kozo | Multiple single-blade wind power generator |
CN201152235Y (en) * | 2008-01-23 | 2008-11-19 | 上海荟懿环保科技有限公司 | Double locomotive wind-driven electric generator |
WO2011007274A1 (en) * | 2009-07-13 | 2011-01-20 | Leviathan Energy Wind Lotus Ltd. | Telecom tower vertical axis wind turbines |
CN101603509B (en) * | 2009-07-17 | 2011-08-31 | 戚永维 | Reinforced type wind-driven generator |
CN202176458U (en) * | 2011-08-03 | 2012-03-28 | 陈革 | High-efficiency wind power generation device |
Also Published As
Publication number | Publication date |
---|---|
CN103147926A (en) | 2013-06-12 |
CN103147926B (en) | 2014-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014161215A1 (en) | Wind turbine with full blade tips | |
KR100828234B1 (en) | Wind turbine for generating electricity | |
CN101943127B (en) | Wind collecting vertical type wind power generating system | |
EP2463513B1 (en) | Wind generating device | |
CN101603507A (en) | Vertical shaft variable blade direct wind-driven generator | |
CN103089547A (en) | Balanced vertical-axis large wind power generation unit | |
WO2011006436A1 (en) | Reinforced type wind-driven generator | |
CN206889168U (en) | A kind of half direct-driving type wind power generation machine | |
JP2008157041A (en) | Wind power generating device electromagnetically utilizing peripheral velocity of blade end part | |
RU2327056C2 (en) | Wind-driven electric plant and support | |
GB2474933A (en) | Vertical axis wind turbine | |
CN202832977U (en) | Balanced vertical axis wind generating set | |
CN203098157U (en) | Full-blade-tip wind power generator | |
CN115750207B (en) | Overspeed yaw prevention lifting device for wind turbine generator | |
CN105545602A (en) | Vertical axis wind turbine with rotating cylinders on front edge | |
JPS6143276A (en) | Power generating windmill apparatus | |
JP2008240591A (en) | Wind power generation device using mechanically-drown peripheral speed of wing end | |
CN202991350U (en) | Balanced type perpendicular-shaft large-sized wind-power generator set | |
CN103726991B (en) | Planetary speedup wind wheel vertical-shaft aerogenerator | |
CN202187860U (en) | Wind power generation device | |
CN202040019U (en) | Wind power generation device | |
CN200999698Y (en) | Tower type wind power generation plant | |
CN201943887U (en) | Rotating wheel structure of wind driven generator for fixing blades | |
WO2009092191A1 (en) | A lifting type high altitude wind generator apparatus and a turbine generator device | |
CN104405588B (en) | Wheeled direct wind-driven generator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13881090 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13881090 Country of ref document: EP Kind code of ref document: A1 |