WO2021056923A1 - 拉索式塔架、风力发电机组及连接装置 - Google Patents

拉索式塔架、风力发电机组及连接装置 Download PDF

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Publication number
WO2021056923A1
WO2021056923A1 PCT/CN2020/070134 CN2020070134W WO2021056923A1 WO 2021056923 A1 WO2021056923 A1 WO 2021056923A1 CN 2020070134 W CN2020070134 W CN 2020070134W WO 2021056923 A1 WO2021056923 A1 WO 2021056923A1
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WO
WIPO (PCT)
Prior art keywords
tower
cable
fixing portion
connecting device
stay
Prior art date
Application number
PCT/CN2020/070134
Other languages
English (en)
French (fr)
Inventor
崔矞飞
张克
李强
Original Assignee
北京金风科创风电设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京金风科创风电设备有限公司 filed Critical 北京金风科创风电设备有限公司
Priority to EP20869766.4A priority Critical patent/EP4023881B1/en
Priority to AU2020353869A priority patent/AU2020353869B2/en
Priority to ES20869766T priority patent/ES2965167T3/es
Publication of WO2021056923A1 publication Critical patent/WO2021056923A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
    • E04H12/342—Arrangements for stacking tower sections on top of each other
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/20—Side-supporting means therefor, e.g. using guy ropes or struts
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/917—Mounting on supporting structures or systems on a stationary structure attached to cables

Definitions

  • This application relates to the field of wind power technology, and in particular to a cable-type tower, a wind power generating set and a connecting device.
  • the existing cable-type tower usually welds lugs on the outer peripheral side wall of the tower section to connect the cable to the tower body.
  • this arrangement can meet the requirements of the cable and the tower body. Connection requirements, but there are also disadvantages that the ear base is difficult to connect, and it is inconvenient to replace and maintain, which is not conducive to the overall promotion of the cable tower.
  • the embodiments of the present application provide a cable-type tower, a wind turbine and a connecting device.
  • the cable-type tower can meet the connection requirements between the cable and the tower by providing connecting components, and the connecting components are easy to connect and replace. And maintenance, which is conducive to the overall promotion of cable-type towers.
  • a cable-stayed tower including: a tower body, including a plurality of tower sections stacked on top of each other, and each tower section has an end at both ends of its own axial direction. Flange, the end flanges of two adjacent tower sections are connected by fasteners; the connecting component is arranged between two adjacent tower sections, and the connecting component includes two or more components distributed in the circumferential direction of the tower section.
  • Each connecting device includes a fixed part and a mounting part that are successively distributed and intersecting in the radial direction of the tower section, and two adjacent end flanges jointly clamp at least part of the fixed part and are detachably connected to the fixed part,
  • the installation part protrudes from the outer peripheral surface of the tower body and has an installation position;
  • the cable assembly includes two or more cables spaced in the circumferential direction, one end of each cable is connected to one of the connecting devices through the installation position and the other One end is used to connect the foundation.
  • a connecting device for connecting a tower body and a cable.
  • the connecting device includes a fixing part having a predetermined length and thickness, and the fixing part is provided with a thickness direction along its own thickness.
  • the through first connecting hole is used to connect with the tower body; the installation part is arranged at one end of the fixed part in its own length direction and intersects the fixed part, the installation part has an installation position, the installation position is a through hole and the axis is aligned with the first
  • the axes of the connecting holes are arranged to intersect; the limiting part is arranged at the other end of the fixed part in the length direction and protrudes from the fixed part along the thickness direction of the fixed part.
  • the cable-type tower includes a tower body, a connecting component, and a cable component.
  • the connecting component is provided and the connecting device is limited to include successive distributions.
  • the intersecting fixing part and the mounting part enable each cable of the cable assembly to be connected to the tower body through the installation position on the mounting part, and at the same time, by limiting the two adjacent end flanges to clamp at least Part of the fixed part is detachably connected with the fixed part, which can not only meet the connection requirements of the connecting devices of the connecting assembly and the tower body, but also facilitate the connection, replacement and maintenance between the connecting devices and the tower body, and is beneficial to the cable type
  • the overall promotion of the tower will increase economic benefits.
  • Fig. 1 is a schematic diagram of the structure of a wind power generating set according to an embodiment of the present application
  • Fig. 2 is a partial structural diagram of a cable-type tower according to an embodiment of the present application.
  • Fig. 3 is a schematic structural diagram of a connection device according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a connecting device according to another embodiment of the present application.
  • FIG. 5 is a schematic diagram of the cooperation of the connecting component, the reinforcing component and the end flange of the embodiment of the present application;
  • Figure 6 is a schematic structural diagram of an end flange of an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the cooperation of the connecting assembly, the spacer and the end flange of the embodiment of the present application.
  • FIG. 8 is a schematic diagram of the structure of a cushion block of an embodiment of the present application.
  • Fig. 9 is a schematic structural diagram of a cable-type tower according to another embodiment of the present application.
  • FIG. 10 is a schematic diagram of the cooperation of the connecting assembly, the adapter, and the end flange of the embodiment of the present application;
  • Fig. 11 is a schematic diagram of the structure of the reinforced component of the present application.
  • Fig. 12 is a schematic diagram of the force direction of the cable assembly of the embodiment of the present application.
  • 20-connecting component 21-connecting device; 211-fixing part; 211a-first surface; 211b-second surface; 211c-first connecting hole; 222-mounting part; 222a-third surface; 222b-fourth surface ; 222c-installation position; 223-limiting part; 224-second connecting piece;
  • the wind power generator set mainly includes a wind turbine foundation 2, a cable tower 1, a nacelle 3, a generator, and an impeller 4.
  • the cable-type tower 1 is connected to the wind turbine foundation 2, the nacelle 3 is arranged on the top of the cable-type tower 1, and the generator is arranged in the nacelle 3.
  • the generator may be located inside the nacelle 3 or outside the nacelle 3.
  • the impeller 4 includes a hub 401 and a plurality of blades 402 connected to the hub 401, and the impeller 4 is connected to the rotating shaft of the generator through the hub 401. When the wind acts on the blades 402, it drives the entire impeller 4 and the rotating shaft of the generator to rotate, thereby meeting the power generation requirements of the wind generator set.
  • an embodiment of the present application also provides a new type of cable-type tower 1.
  • the cable-type tower 1 includes a tower body 10 and a connecting assembly 20 As well as the cable assembly 30, the cable 31 of the cable assembly 30 is connected to the tower body 10 through the connecting assembly 20, which can meet the connection requirements between the cable 31 and the tower body 10, and the connecting assembly 20 is easy to connect and replace And maintenance.
  • the tower body 10 includes a plurality of tower sections 11 stacked on top of each other.
  • Each tower section 11 has an end flange 111 at both ends of its own axial direction X, and two adjacent towers are adjacent to each other.
  • the end flange 111 of the barrel section 11 is connected by fasteners.
  • the cable assembly 30 includes two or more cables 31 spaced apart along the circumferential direction Y.
  • the connecting assembly 20 is arranged between two adjacent tower sections 11, and the connecting assembly 20 includes two or more connecting devices 21 sequentially distributed along the circumferential direction Y of the tower section 11. The number may be the same as the number of connection devices 21 included in the connection assembly 20.
  • the embodiment of the present application also provides a new type of connecting device 21.
  • the connecting device 21 can be produced and sold separately as an independent component. Of course, it is also It can be used for the cable-stayed tower 1 as a part of the cable-stayed tower 1.
  • the connecting device 21 includes a fixing part 211 and a mounting part 222, the fixing part 211 has a predetermined length and thickness, the mounting part 222 and the fixing part 211 are arranged successively, and the mounting part 222 is specifically arranged At one end of the fixing portion 211 in the longitudinal direction M of the fixing portion 211 and intersecting the fixing portion 211, the mounting portion 222 has a mounting position 222c.
  • the connecting device 21 When the connecting device 21 is used for the cable-type tower 1 and is used as a component of the cable-type tower 1, the length direction M of the fixed portion 211 is consistent with the radial direction Z of the tower section 11, that is, the fixed portion 211 is along the Extending in the radial direction Z of the tower section 11, the fixing portion 211 and the mounting portion 222 are successively distributed in the radial direction Z of the tower section 11.
  • the mounting portion 222 protrudes from the outer circumferential surface of the tower body 10 and has two adjacent ends
  • the flange 111 together clamps at least part of the fixed portion 211 and is detachably connected to the fixed portion 211.
  • each cable 31 is connected to one of the connecting devices 21 through the mounting position 222c, and the other end is used to connect to the foundation.
  • the other end of the cable 31 that extends in a direction away from the installation position 222c may be specifically connected to the fan foundation 2, and of course, it may also be connected to a separate cable foundation.
  • the fixing portion 211 is provided with a first connecting hole 211c penetrating along its own thickness direction N for connecting with the tower body 10.
  • the first connecting hole 211c is arranged opposite to one of the flange holes 111a of the end flange 111 in the axial direction X of the tower section 11.
  • the parts are connected to each other, so that the fixed part 211 and the tower body 10 can be detachably connected, and the fixed part 211 is restricted from moving in the radial direction Z of the tower section 11, which can not only meet the connection requirements, but also ensure the connection strength and make the connection
  • the device 21 is easy to replace and maintain.
  • the connecting device 21 may further include a limiting portion 223, the limiting portion 223 is provided at the other end of the fixing portion 211 in the length direction M, the limiting portion 223 and The mounting portion 222 is oppositely arranged in the length direction M of the connecting device 21, and the limiting portion 223 protrudes from the fixing portion 211 along the thickness direction N of the fixing portion 211, that is, the limiting portion 223 is in the radial direction Z of the tower section 11 Protruding from the fixed portion 211, so that the limiting portion 223 can abut against the inner wall surface of the tower section 11, and can also restrict the fixed portion 211 from moving in the radial direction Z of the tower section 11, eliminating the fastener from being sheared.
  • the strength of this ensures the connection requirements between the connecting device 21 and the tower body 10, and further meets the connection requirements between the cable 31 and the tower body 10.
  • the connecting device 21 may include the first connecting hole 211c and the limiting portion 223 at the same time.
  • the connecting device 21 may also include only one of the first connecting hole 211c and the limiting portion 223.
  • the mounting position 222c may be a through hole and the axis is arranged to intersect the axis of the first connecting hole 211c, so as to better satisfy the connection with the cable 31.
  • a protective cover can be provided inside the installation position 222c, and the protective cover can be a stainless steel lubrication sleeve. By setting the protective cover, the installation position 222c and the mounting portion 222 where it is located can be protected, thereby improving the overall performance of the connecting device 21. Service life.
  • the fixing portion 211 and the mounting portion 222 may be plate bodies, respectively. Through this arrangement, the overall structure of the connecting device 21 is simple and the cost is low.
  • the fixing portion 211 and the mounting portion 222 may be an integral structure.
  • the connection strength between the fixing portion 211 and the mounting portion 222 can be ensured, and stress concentration at the connection position between the two can be avoided, and at the same time It also makes the connecting device 21 easy to form as a whole.
  • the connecting device 21 as a whole can be forged with high-strength steel Q420 or above, or cast with better performance cast steel or ductile iron. For small loads, welding can also be used, as long as the reliability of the connecting device 21 is ensured.
  • the fixing portion 211 has a first surface 211a and The second surface 211b
  • the mounting portion 222 has a third surface 222a and a fourth surface 222b oppositely arranged
  • the mounting position 222c is a through hole penetrating the third surface 222a and the fourth surface 222b
  • the first surface 211a intersects the third surface 222a
  • a first included angle ⁇ is set and formed
  • the second surface 211b and the fourth surface 222b intersect and form a second included angle ⁇ .
  • the first included angle ⁇ is greater than 0° and less than or equal to 60°, that is, the first included angle ⁇ can be any value between 0° and 60°, and can be any value between 10° and 45°. It can further be 30°.
  • the second included angle ⁇ can also be greater than 0° and less than or equal to 60°, that is, the second included angle ⁇ can also be any value between 0° and 60°, and can be selected from 10° to 45°.
  • the optional value between the first included angle ⁇ and the second included angle ⁇ may be 30°, and some optional values may be 25°, 30°, 35°, etc., depending on the cable 31 connected to it.
  • the angle between the extension direction of ⁇ and the axial direction X of the tower section 11 is set so that the force provided by the cable 31 can be better transmitted to the tower body 10.
  • the second included angle ⁇ may be the same as the first included angle ⁇ , and of course, it may also be different, as long as it can better meet the connection requirements between the cable 31 and the tower body 10.
  • the cable-type tower 1 provided by the above-mentioned embodiments of the present application, in order to better connect with the connecting device 21, to ensure the connection requirements with the connecting device 21, as a kind of
  • the surfaces of at least one set of two end flanges 111 that are connected to each other abut against each other, and at least one of the two end flanges 111 is provided with a first opening groove 111b, so that the two adjacent ends A receiving groove is formed between the flanges 111, and the fixing portion 211 is disposed in the receiving groove.
  • the installation of the connecting device 21 can be facilitated, and at the same time, since the installation portion 222 of the connecting device 21 is arranged in the containing groove, the two end flanges 111 are arranged against each other, which can improve the height of the adjacent two towers.
  • the sealing requirements of the tower body 10 can be better guaranteed.
  • the weight of each tower section 11 above the connecting device 21 will be transmitted to each other through the abutting end flanges 111, and the connecting device 21 will not bear or only bear a small force. Therefore, the connecting device 21 can be further ensured Life.
  • one end flange 111 of the two end flanges 111 connected to each other is provided with a first opening groove 111b, which may be an end located at the lower part in the axial direction X of the tower section 11.
  • the flange 111 is provided with a first opening groove 111b, or it can be provided with a first opening groove 111b on the upper end flange 111 in the axial direction X, and the other end flange 111 faces the surface of the first opening groove 111b and encloses
  • the wall surfaces forming the first opening groove 111b jointly form a receiving groove, which can meet the installation requirements of the fixing portion 211 and at the same time meet the mutual abutment requirements of the two end flanges 111.
  • the first opening grooves 111b on the two end flanges 111 connected to each other can also be provided, and the first opening grooves 111b on the two end flanges 111 can be arranged in a one-to-one correspondence.
  • the side walls of the two first opening grooves 111b that are enclosed to form a one-to-one correspondence form a receiving groove, which can also meet the installation requirements of the fixing portion 211.
  • this arrangement allows the two end flanges 111 connected to each other to share the installation requirements of the containing groove, and has a small impact on the structural strength of the two end flanges 111, and can ensure the safety performance of the tower body 10.
  • the installation and maintenance of the connecting device 21 by providing the first opening groove 111b on the end flange 111 is only an optional implementation, but it is not limited to this.
  • the surfaces facing each other of at least one set of two end flanges 111 connected to each other are spaced apart from each other and form a gap, the fixing portion 211 is located in the gap, and a spacer 50 is provided between two adjacent connecting devices 21.
  • the height of the cushion block 50 is equal to or higher than the height of the fixed portion 211, the cushion block 50 is provided with a second connecting hole 51, and the second connecting hole 51 is in the tower section 11 It is arranged opposite to one of the flange holes 111a of the end flange 111 in the axial direction X and is connected to each other by fasteners.
  • the arrangement of the spacer 50 can also improve the stability of the connection between two adjacent tower sections 11.
  • the sealing requirements of the tower body 10 can be better ensured.
  • the weight of each tower section 11 above the connecting device 21 will be realized by the spacer block 50 between the flanges 111 at the two ends contacting the spacer block 50. Transmission, the connecting device 21 does not bear or only bears a small force, therefore, the service life of the connecting device 21 can also be further ensured.
  • the cushion block 50 may have an arc-shaped block structure, or an arc-shaped block structure may be selected.
  • the number of the second connecting holes 51 on each cushion block 50 can be set according to the size of the cushion block 50, The number of the second connecting holes 51 may be more than two.
  • the two or more second connecting holes 51 are spaced apart from each other in the circumferential direction Y of the tower section 11, and each second connecting hole 51 is connected to One of the flange holes 111a is arranged oppositely and connected to each other by fasteners.
  • the number of the spacer 50 between the two adjacent connecting devices 21 can be one, of course, it can also be more than two.
  • the spacer 50 and the fixing part 211 of the connecting device 21 are spliced with each other to jointly fill the gap between the two adjacent end flanges 111 in the axial direction X to ensure the overall sealing performance of the tower body 10.
  • At least one set of mutually connected two end flanges 111 facing each other can be defined to be spaced apart from each other and form a gap.
  • the adapter 60 with the matching shape of the flange 111 is provided with a second opening groove 61 on one of the surfaces of the adapter 60 facing the end flange 111 to form an installation between the adapter 60 and one of the end flanges 111 Groove, the fixing part 211 is arranged in the installation groove, the adapter 60 is provided with a third connecting hole 62, and the third connecting hole 62 is arranged opposite to one of the flange holes 111a of the end flange 111 in the axial direction X and passes through The fasteners are connected to each other.
  • the installation of the adapter 60 between the two adjacent end flanges 111 can be completed on the basis of ensuring the integrity of the end flange 111.
  • the arrangement of the adapter 60 can also improve the installation of the two adjacent end flanges. The stability of the connection between the tower sections 11.
  • the shape of the adapter 60 can be matched with the shape of the end flange 111, and can be ring-shaped, specifically, it can be a circular ring shape, and the number of the third connecting holes 62 can be two or more and the same as that of the end flange 111.
  • the upper connecting holes are arranged in one-to-one correspondence, and the one-to-one correspondence between the third connecting holes 62 and the flange holes 111a are connected by fasteners.
  • each tower section 11 above the connecting device 21 will be realized by the adapter 60 at both ends of the flange in contact with the adapter 60 In the transmission between 111, the connecting device 21 does not bear or only bears a small force. Therefore, the service life of the connecting device 21 can also be further ensured.
  • the stay-cable tower 1 of each of the above embodiments further includes a reinforcing component 40 disposed inside the tower body 10, and the reinforcing component 40 includes a center
  • the fixing piece 41 and the anti-deformation piece 42 connected with the central fixing piece 41, and the end of the anti-deformation piece 42 away from the central fixing piece 41 is connected to one of the tower section 11 and the connecting assembly 20.
  • the central fixing member 41 is in a closed ring structure
  • the anti-deformation member 42 is in a strip structure extending in the radial direction Z and has opposite first and second ends. The end is connected to the central fixing member 41 and the second end is connected to one of the tower body 10 and the connecting assembly 20.
  • the central fixing part 41 and the anti-deformation part 42 adopt the above-mentioned structure, which is simple in structure, easy to form, and can better avoid the tension and deformation of the end flange 111.
  • the number of the anti-deformation members 42 is two or more, and they are sequentially distributed along the circumferential direction Y of the tower section 11, and may be evenly distributed.
  • the deformation of the end flange 111 can be further avoided, and at the same time, the overall force of the tower body 10 can be made more uniform, and its safety performance can be ensured.
  • the central fixing member 41 is arranged coaxially with the tower body 10, which can ensure the uniformity of the tension provided by the reinforcement assembly 40 to the end flange 111, and better prevent the reinforcement assembly 40 from deforming.
  • the reinforcement assembly 40 further includes a locking member 43.
  • the first end extends into the central fixing member 41 along the radial direction Z of the tower body 10 and is detachably connected to the locking member 43.
  • the first end extends into the central fixing member.
  • the size within 41 is adjustable. Through the above arrangement, the connection between the anti-deformation piece 42 and the central fixing piece 41 can be facilitated, and at the same time, the size of the anti-deformation piece 42 extending into the central fixing piece 41 can be adjusted according to the strengthening requirements of the opposite end flange 111. It meets the requirements of preventing the tension and deformation of the end flange 111.
  • the anti-deformation member 42 may be a rigid rod member.
  • the locking member 43 may be a locking nut, and the locking member 43 is threadedly connected to the first end.
  • the rigid rod may specifically be a tie rod, a screw, such as a double-ended screw, etc. With the above arrangement, the tension between the anti-deformation member 42 and the end flange 111 can be changed by screwing the locking member 43.
  • the use of rigid rods for the anti-deformation member 42 is only an optional implementation.
  • the anti-deformation member 42 can also be a flexible cable, such as a steel wire rope. In this case, the locking member 43 can be a clamp.
  • the locking member 43 is clamped and fixed to the first end of the anti-deformation member 42, which can be changed by changing the position where the first end of the locking member 43 clamps and extends into the central fixing member 41 The tensile force of the anti-deformation member 42 on the end flange 111.
  • the central fixing portion 211 may be a circular ring.
  • the central fixing portion 211 may also be a triangular ring, a square ring or other polygonal rings, and may be a regular polygonal ring.
  • the second end of the anti-deformation member 42 and one of the connecting device 21 or the tower body 10 may be fixedly connected, for example, connected by welding.
  • it may also be connected by a detachable connection.
  • it is connected by bolt fastening.
  • the number of anti-deformation members 42 and the number of connecting devices 21 may be the same and arranged in a one-to-one correspondence.
  • the second end of each anti-deformation member 42 is provided with a first connecting member 421, and each connection
  • the device 21 is provided with a second connecting piece 224 connected to the first connecting piece 421, and the second end is connected to the corresponding connecting device 21 through the first connecting piece 421 and the second connecting piece 224.
  • the position where the strength of the end flange 111 is provided with the connecting device 21 is relatively weak, by connecting the anti-deformation member 42 with the connecting device 21, the position where the strength of the end flange 111 is relatively weak can be strengthened, thereby better avoiding the end flange 111 deforms when receiving a large external force from the cable 31.
  • the second connecting member 224 may be connected to the fixing portion 211 of the connecting device 21.
  • the connecting device 21 includes the limiting portion 223
  • the second connecting member 224 may also be connected to the limiting portion of the connecting device 21 223.
  • first connecting piece 421 and the second connecting piece 224 may be detachably connected.
  • One of the first connecting piece 421 and the second connecting piece 224 may be a protrusion, and the other may have a convex and a convex
  • the hinge block structure of the accommodating groove with matching shapes is formed, and the protrusions at least partially extend into the accommodating groove and are hinged to each other through a rotating shaft.
  • This connection method has a simple structure, and makes the anti-deformation member 42 have a degree of freedom of rotation relative to the connecting device 21, which can compensate for accuracy errors during processing or installation, and facilitates the connection between the anti-deformation member 42 and the central fixing member 41 and the connecting device 21 , At the same time, it is easy to disassemble and assemble the entire reinforcement assembly 40, and facilitate the replacement and maintenance of the reinforcement assembly 40.
  • the above-mentioned detachable connection method of the first connecting piece 421 and the second connecting piece 224 is only an optional way.
  • the first connecting piece 421 and the second connecting piece 224 may be hooked.
  • the other adopts a hanging ring structure that is mutually hooked with the hook, which can also meet the requirement of detachable connection between the two.
  • connection between the second end of the anti-deformation member 42 and the connecting device 21 are all exemplified by the connection between the second end of the anti-deformation member 42 and the connecting device 21.
  • the second end may also be connected to the tower body.
  • 10 is connected, for example, connected with the end flange 111, and the connection mode with the end flange 111 is the same as the connection mode with the connection device 21, and will not be repeated here.
  • the anti-deformation members 42 of the reinforcement assembly 40 may be located at the same height in the axial direction X of the tower section 11.
  • the height of at least two anti-deformation members 42 may be different, for example, the second one of the anti-deformation members 42
  • the end can be connected to the connecting device 21, the second end of the other anti-deformation member 42 can be connected to the end flange 111 or the wall of the tower section 11, one or more of the reinforcement components 40 are resistant to deformation
  • the piece 42 can even be tensioned at an angle, as long as it can prevent the deformation of the end flange 111 in the tensioning direction of the cable 31 from occurring.
  • the end of the cable 31 facing the connecting assembly 20 of the above embodiments is provided with a hinge joint 32, and the hinge joint 32 and the mounting position 222 c are hinged to each other.
  • the connection requirements between the cable 31 and the connecting device 21 can be met, and at the same time, the cable 31 can have a certain degree of freedom of rotation relative to the connecting device 21, and it can be estimated that the force direction of each cable needs to be adjusted.
  • the uniformity of the pulling force of the tower body 10 by the cable assembly 30 as a whole can also be ensured, thereby ensuring the overall ability of the cable-type tower 1 to resist wind energy.
  • the number of cables 31 included in the cable tower 1 can be three, but not limited to three.
  • the force direction of the cables 31 is the same as
  • the extension directions of the centerline of the tower body 10 can intersect, but it needs to be considered that the tower increases the strength of the tower body 10 under the cable 31 to resist the torsional moment of the wind turbine generator around the centerline of the tower body 10.
  • the cable 31 has no resistance to the torsion moment of the wind turbine around the center line of the tower. If the strength of the cylinder under the cable 31 is increased, it cannot be designed.
  • the force directions of the multiple cables 31 cannot intersect the centerline of the tower body 10, and need to have an angle with the centerline of the tower body 10, that is, In some optional examples, it is required that the force direction of at least one cable 31 does not intersect the extension direction of the centerline of the tower body 10 to resist the torsional moment of the wind turbine around the centerline of the tower.
  • the disjointness may mean disjoint in space, and the force direction of other cables 31 and the extension direction of the center line of the tower body 10 may intersect, or of course, they may not intersect.
  • every two cables 31 can be a group, and the force directions of the two cables 31 in each group are between
  • the included angles are A, B, and C, and the values of the included angles A, B, and C can be the same, of course, can also be different, which can be specifically set according to the number of cables 31 and the strength requirements of the cable tower 1.
  • the cable 31 included in the cable-type tower 1 can be multi-layered in the axial direction X, that is, the cable assembly 30 is not limited to be provided on the same layer.
  • the cable 31 has multiple layers, that is, the cable
  • the torsional moment of the wind turbine generator set around the centerline of the tower body 10 also needs to be considered.
  • the tower body 10 itself can resist the torsional moment of the wind turbine below the position of the cable 31, and the force direction of the cable 31 can pass through the center line of the tower body 10.
  • the force directions of the multiple cables 31 cannot all intersect the center line of the tower body 10, and at least two The force direction of the cable 31 does not intersect with the extension direction of the center line of the tower body 10, so as to resist the torsional moment of the wind turbine on the tower body 10.
  • the connecting device 21 provided by the embodiment of the present application includes a fixing portion 211, a mounting portion 222, and a limiting portion 223, and the fixing portion 211 has a predetermined length and thickness, and the fixing portion 211 is provided with a thickness along its own thickness.
  • the first connecting hole 211c penetrates in the direction N, so that when the connecting device 21 is applied to the cable-type tower 1 as a part of it, at least part of the fixing portion 211 can be clamped to the two adjacent end flanges 111 of the tower body 10
  • the first connection hole 211c and the flange hole 111a are connected by fasteners, which can meet the connection requirements of the connection devices 21 of the connection assembly 20 and the tower body 10, and facilitate the connection of the connection devices 21 and the tower body 10.
  • the corresponding limit part 223 can play a limit function to ensure the reliability of the connection between the connecting device 21 and the end flange 111.
  • the mounting portion 222 can protrude from the outer peripheral surface of the tower section 11 and be connected to the cable 31 through the installation position 222c, so that the connection provided by the embodiment of the present application is
  • the device 21 can not only meet the connection requirements of the cable 31 and the tower body 10, at the same time, the connecting device 21 also has a simple structure, small size, convenient transportation, will not affect the overall weight of the tower, and is easy to manufacture and install, and can be more Optimize the performance of the cable tower 1 and other advantages.
  • the cable-type tower 1 and the wind turbine generator provided by the embodiment of the present application include a connecting assembly 20, and the connecting assembly 20 includes two or more connecting devices 21 of the above-mentioned embodiments, which can meet the requirements of each cable assembly 30.
  • the connection between the cable 31 and the tower body 10 is required, and the connection between the connecting devices 21 and the tower body 10, as well as replacement and maintenance are convenient.
  • the connecting device 21 For the tower body 10 itself, the structural changes are small, and the connecting device 21 ,
  • the spacer 50 and the adapter 60 can be universal, and only partial adjustments to the processing parts can be made to reduce costs.
  • the transitional connection on the flange can be used to ensure that the tower body of the modified model does not need to be returned to the factory.
  • the cable 31 is directly added to the existing foundation to ensure the economic efficiency of the transformation project, which is conducive to the overall promotion of the cable tower 1, thereby increasing the economic benefits of the wind turbine.

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Abstract

一种拉索式塔架（1）、风力发电机组及连接装置（21），拉索式塔架（1）包括塔架本体（10），包括多个相互层叠设置的塔筒段（11），每个塔筒段（11）在自身轴向（X）的两端分别具有端法兰（111），连接组件（20），设置于相邻两个塔筒段（11）之间，包括两个以上沿塔筒段（11）的周向（Y）依次分布的连接装置（21），每个连接装置（21）包括沿塔筒段（11）的径向（Z）上相继分布且相交设置的固定部（211）以及安装部（222），相邻两个端法兰（111）共同夹持至少部分固定部（211）并与固定部（211）可拆卸连接，安装部（222）具有安装位（222c），拉索组件（30）包括两个以上沿周向（Y）间隔分布的拉索（31），每个拉索（31）的一端通过安装位（222c）与连接装置（21）连接且另一端用于连接基础。通过设置连接组件（20）能够满足拉索（31）与塔架（1）之间的连接要求，同时连接组件（20）易于连接且便于更换及维护，利于拉索式塔架（1）的全面推广。

Description

拉索式塔架、风力发电机组及连接装置
相关申请的交叉引用
本申请要求享有于2019年09月27日提交的名称为“拉索式塔架、风力发电机组及连接装置”的中国专利申请201910934276.X的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及风电技术领域，特别是涉及一种拉索式塔架、风力发电机组及连接装置。
背景技术
随着风电行业的迅猛发展，高塔架逐渐成为发展的趋势，拉索式塔架可以满足塔架高度增加的同时不增加塔架的重量，以其优异的性能满足市场的需求，具有很广阔的应用前景。随着塔架高度的增加，塔架的生产、运输及安装的成本等也会增加。而拉索式塔架因其特有的结构属性可以改善塔架整体的受力情况，因此被广泛的使用。
然而，已有的拉索式塔架通常为在塔筒段的外周侧壁上焊接耳座以将拉索与塔架本体连接，该种设置方式虽然能够满足拉索与塔架本体之间的连接要求，但也存在耳座连接困难且不便于更换以及维护的弊端，不利于拉索式塔架的全面推广。
因此，亟需一种新的拉索式塔架、风力发电机组及连接装置。
发明内容
本申请实施例提供一种拉索式塔架、风力发电机组及连接装置，拉索式塔架通过设置连接组件能够满足拉索与塔架之间的连接要求，同时连接组件易于连接且便于更换及维护，利于拉索式塔架的全面推广。
一方面，根据本申请实施例提出了一种拉索式塔架，包括：塔架本体，包括多个相互层叠设置的塔筒段，每个塔筒段在自身轴向的两端分别具有端法兰，相邻两个塔筒段的端法兰通过紧固件连接；连接组件，设置于相邻两个塔筒段之间，连接组件包括两个以上沿塔筒段的周向依次分布的连接装置，每个连接装置包括沿塔筒段的径向上相继分布且相交设置的固定部以及安装部，相邻两个端法兰共同夹持至少部分固定部并与固定部可拆卸连接，安装部凸出于塔架本体的外周面且具有安装位；拉索组件，包括两个以上沿周向间隔分布的拉索，每个拉索的一端通过安装位与其中一个连接装置连接且另一端用于连接基础。
另一方面，根据本申请实施例提出了一种风力发电机组，包括上述的拉索式塔架.
又一方面，根据本申请实施例提出了一种连接装置，用于连接塔架本体以及拉索，连接装置包括：固定部，具有预定的长度及厚度，固定部上设置有沿其自身厚度方向贯通的第一连接孔，用于与塔架本体连接；安装部，设置于固定部在自身长度方向的一端并与固定部相交，安装部具有安装位，安装位为通孔且轴线与第一连接孔的轴线相交设置；限位部，设置于固定部在长度方向的另一端并沿固定部的厚度方向凸出于固定部。
根据本申请实施例提供的拉索式塔架、风力发电机组及连接装置，拉索式塔架包括塔架本体、连接组件以及拉索组件，通过设置连接组件，并限定其连接装置包括相继分布且相交设置的固定部以及安装部，使得拉索组件的各拉索能够通过安装部上的安装位实现与塔架本体的连接要求，同时，通过限定相邻两个端法兰共同夹持至少部分固定部并与固定部可拆卸连接，既能够满足连接组件的各连接装置与塔架本体的连接要求，且便于各连接装置与塔架本体之间的连接以及更换与维护，利于拉索式塔架的全面推广，进而提高经济收益。
附图说明
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效果。
图1是本申请实施例的风力发电机组的结构示意图；
图2是本申请一个实施例的拉索式塔架的局部结构示意图；
图3是本申请一个实施例的连接装置的结构示意图；
图4是本申请另一个实施例的连接装置的结构示意图；
图5是本申请实施例的连接组件、加强组件以及端法兰的配合示意图；
图6是本申请一个实施例的端法兰的结构示意图；
图7是本申请实施例的连接组件、垫块以及端法兰的配合示意图；
图8是本申请实施例的垫块的结构示意图；
图9是本申请另一个实施例的拉索式塔架的结构示意图；
图10是本申请实施例的连接组件、转接件以及端法兰的配合示意图；
图11是本申请加强组件的结构示意图；
图12是本申请实施例的拉索组件的受力方向示意图。
其中：
1-拉索式塔架；
10-塔架本体；11-塔筒段；111-端法兰；111a-法兰孔；111b-第一开口槽；
20-连接组件；21-连接装置；211-固定部；211a-第一表面；211b-第二表面；211c-第一连接孔；222-安装部；222a-第三表面；222b-第四表面；222c-安装位；223-限位部；224-第二连接件；
30-拉索组件；31-拉索；32-铰接头；
40-加强组件；41-中心固定件；42-抗变形件；421-第一连接件；43-锁紧部件；
50-垫块；51-第二连接孔；
60-转接件；61-第二开口槽；62-第三连接孔；
X-轴向；Y-周向；Z-径向；M-长度方向；N-厚度方向；
2-风机基础；3-机舱；4-叶轮；401-轮毂；402-叶片。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
具体实施方式
下面将详细描述本申请的各个方面的特征和示例性实施例。在下面的详细描述中，提出了许多具体细节，以便提供对本申请的全面理解。但是，对于本领域技术人员来说很明显的是，本申请可以在不需要这些具体细节中的一些细节的情况下实施。下面对实施例的描述仅仅是为了通过示出本申请的示例来提供对本申请的更好的理解。在附图和下面的描述中，至少部分的公知结构和技术没有被示出，以便避免对本申请造成不必要的模糊；并且，为了清晰，可能夸大了部分结构的尺寸。此外，下文中所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。
为了更好地理解本申请，下面结合图1至图12根据本申请实施例的拉索式塔架、风力发电机组及连接装置进行详细描述。
请参阅图1，本申请实施例提供一种风力发电机组，风力发电机组主要包括风机基础2、拉索式塔架1、机舱3、发电机以及叶轮4。拉索式塔架1连接于风机基础2，机舱3设置于拉索式塔架1的顶端，发电机设置于机舱3，可以位于机舱3的内部，当然也可以位于机舱3的外部。叶轮4包括轮毂401以及连接于轮毂401上的多个叶片402，叶轮4通过其轮毂401与发电机的转轴连接。风力作用于叶片402时，带动整个叶轮4以及发电机的转轴转动，进而满足风力发电机组的发电要求。
由上述对风力发电机组的结构介绍可知，机舱3、发电机及叶轮4等重型设备均支撑于拉索式塔架1的上方，当风力发电机组的高度较高或者功率较大时，对拉索式塔架1的强度以及安全性能具有更高的要求。
请一并参阅图2至图3，为了更好的满足上述要求，本申请实施例还提供一种新型的拉索式塔架1，拉索式塔架1包括塔架本体10、连接组件20以及拉索组件30，拉索组件30的拉索31通过连接组件20与塔架本体10连接，能够满足拉索31与塔架本体10之间的连接要求，同时连接组件20易于连接且便于更换以及维护。
在一些可选的示例中，塔架本体10包括多个相互层叠设置的塔筒段11，每个塔筒段11在自身轴向X的两端分别具有端法兰111，相邻两个塔筒段11的端法兰111通过紧固件连接。拉索组件30包括两个以上沿周向Y间隔分布的拉索31。连接组件20设置于相邻两个塔筒段11之间，连接组件20包括两个以上沿塔筒段11的周向Y依次分布的连接装置21，拉索组件30所包括的拉索31的数量可以与连接组件20所包括的连接装置21数量相同。
为了更好的满足拉索31与塔架本体10之间的连接要求，本申请实施例还提供一种新型的连接装置21，连接装置21可以作为独立的构件单独生产、售卖等，当然，也可以用于拉索式塔架1作为拉索式塔架1的一部分。
可选的，请继续参阅图2以及图3，连接装置21包括固定部211以及安装部222，固定部211具有预定的长度及厚度，安装部222与固定部211相继设置，安装部222具体设置于固定部211在自身长度方向M的一端并与固定部211相交，安装部222具有安装位222c。当连接装置21用于拉索式塔架1并作为拉索式塔架1的组成部分时，其固定部211的长度方向M与塔筒段11的径向Z一致，即，固定部211沿着塔筒段11的径向Z延伸，固定部211以及安装部222在塔筒段11的径向Z上相继分布，安装部222凸出于塔架本体10的外周面，相邻两个端法兰111共同夹持至少部分固定部211并与固定部211可拆卸连接。
每个拉索31的一端通过安装位222c与其中一个连接装置21连接且另一端用于连接基础。可选的，拉索31向远离安装位222c的方向延伸的另一端具体可以与风机基础2连接，当然，也可以与单独设置的拉索基础连接。
作为一种可选的实施方式，固定部211上设置有沿其自身厚度方向N贯通的第一连接孔211c，用于与塔架本体10连接，当连接装置21应用至拉索式塔架1时，其厚度方向N与塔筒段11的轴向X一致，第一连接孔211c在塔筒段11的轴向X上与端法兰111的其中一个法兰孔111a相对设置并通过紧固件相互连接，进而使得固定部211与塔架本体10可拆卸连接，限制固定部211在塔筒段11的径向Z上移动，既能够满足连接要 求，同时能够保证连接强度，且能够使得连接装置21易于更换及维护。
请一并参阅图4，作为一种可选的实施方式，连接装置21还可以进一步包括限位部223，限位部223设置于固定部211在长度方向M的另一端，限位部223与安装部222在连接装置21的长度方向M上相对设置，限位部223沿固定部211的厚度方向N凸出于固定部211，即，限位部223在塔筒段11的径向Z上凸出于固定部211，进而使得限位部223能够抵靠于塔筒段11的内壁面，同样能够限制固定部211在塔筒段11的径向Z上移动，消除紧固件受剪切的力，保证连接装置21与塔架本体10之间的连接要求，进而满足拉索31与塔架本体10之间的连接要求。
在具体实施时，连接装置21可以同时包括第一连接孔211c以及限位部223，当然，连接装置21也可以仅包括第一连接孔211c以及限位部223中的一者。
在一些可选的实施例中，安装位222c可以为通孔且轴线与第一连接孔211c的轴线相交设置，以更好的满足与拉索31之间的连接。可选的，安装位222c的内部可以设置有防护套，防护套可选为不锈钢润滑套，通过设置防护套，能够对安装位222c及其所在的安装部222进行防护，提高连接装置21整体的使用寿命。
作为一种可选的实施方式，固定部211与安装部222分别可以为板体，通过此种设置，使得连接装置21整体结构简单，成本低廉。
可选的，固定部211与安装部222可以为一体式结构，通过上述设置，既能够保证固定部211与安装部222之间的连接强度，避免二者之间的连接位置出现应力集中，同时还使得连接装置21整体易于成型。
连接装置21整体可以采用高强钢Q420及其以上材料锻造，或者采用性能更好的铸钢或者球墨铸铁铸造，对于载荷不大的也可以采用焊接成型，只要保证连接装置21的可靠性均可。
请继续参阅图3及图4，在一些可选的实施例中，在塔筒段11的轴向X上即固定部211的厚度方向N上，固定部211具有相对设置的第一表面211a以及第二表面211b，安装部222具有相对设置的第三表面222a以及第四表面222b，安装位222c为贯通第三表面222a以及第四表面222b的通孔，第一表面211a与第三表面222a相交设置并形成第一夹角α，第二 表面211b与第四表面222b相交设置并形成第二夹角β。其中，第一夹角α大于0°且小于等于60°，即，第一夹角α可以采用0°至60°之间的任意数值，可选为10°至45°之间的任意数值，进一步可选为30°。
可选的，第二夹角β同样可以大于0°且小于等于60°，即，第二夹角β同样可以采用0°至60°之间的任意数值，可选为10°至45°之间的任意数值，进一步可选为30°，第一夹角α以及第二夹角β一些可选的点值为25°、30°、35°等，具体可以根据其所连接的拉索31的延伸方向与塔筒段11的轴向X之间的角度设置，以使拉索31提供的作用力能够更好的传递至塔架本体10。具体实施时，第二夹角β可以与第一夹角的α大小相同，当然，也可以不同，只要能够更好的满足拉索31与塔架本体10之间的连接要求均可。
请一并参阅图2至图6，本申请上述各实施例提供的拉索式塔架1，为了更好的与连接装置21连接，保证与连接装置21之间的连接要求，作为一种可选的实施方式，至少一组相互连接的两个端法兰111面向彼此的表面相互抵靠且两个端法兰111的至少一者设置有第一开口槽111b，以在相邻两个端法兰111之间形成容纳槽，固定部211设置于容纳槽。
通过上述设置，既能够便于连接装置21的安装，同时，由于将连接装置21的安装部222设置于容纳槽，使得两个端法兰111之间相互抵靠设置，能够提高相邻两个塔筒段11之间连接的稳定性。并且，能够更好的保证塔架本体10的密封要求。进一步的，连接装置21上方的各塔筒段11的重量将通过相互抵靠的端法兰111相互传递，连接装置21不承受或者只承受较小的力，因此，还能够进一步保证连接装置21的使用寿命。
作为一种可选的实施方式，相互连接的两个端法兰111中的一个端法兰111上设置有第一开口槽111b，可以是在塔筒段11的轴向X上位于下部的端法兰111设置第一开口槽111b，也可以是在轴向X上位于上部的端法兰111上设置第一开口槽111b，另一个端法兰111面向第一开口槽111b的表面以及围合形成第一开口槽111b的壁面共同形成容纳槽，可以满足固定部211的安装要求，同时能够满足两个端法兰111的相互抵靠要求。
当然，在一些其他的示例中，也可以在相互连接的两个端法兰111上均设置有第一开口槽111b，两个端法兰111上的第一开口槽111b可以一 一对应设置，围合形成一一对应设置的两个第一开口槽111b的侧壁共同形成容纳槽，同样能够满足固定部211的安装要求。同时，该种设置方式，使得相互连接的两个端法兰111能够共同分担容纳槽的设置要求，对两个端法兰111的结构强度影响较小，能够保证塔架本体10的安全性能。
请一并参阅图7及图8，可以理解的是，通过在端法兰111上设置第一开口槽111b实现连接装置21的安装及维护只是一种可选的实施方式，但不限于此，在一些其他的示例中，至少一组相互连接的两个端法兰111面向彼此的表面相互间隔并形成间隙，固定部211位于间隙内，相邻两个连接装置21之间设置有垫块50，在塔筒段11的轴向X上，垫块50的高度等于或者高于固定部211的高度，垫块50上设置有第二连接孔51，第二连接孔51在塔筒段11的轴向X上与端法兰111的其中一个法兰孔111a相对设置并通过紧固件相互连接。通过上述设置，能够在保证相互连接的两个端法兰111的完整性的基础上完成垫块50在相邻两个端法兰111之间的安装。
同时，垫块50的设置同样能够提高相邻两个塔筒段11之间连接的稳定性。并且，能够更好的保证塔架本体10的密封要求，进一步的，连接装置21上方的各塔筒段11的重量将通过垫块50实现与垫块50接触的两端法兰111之间的传递，连接装置21不承受或者只承受较小的力，因此，同样能够进一步保证连接装置21的使用寿命。
在具体实施时，垫块50可以呈弧形块状结构，可选为圆弧形块状结构，每个垫块50上的第二连接孔51的数量可以根据垫块50的尺寸设定，第二连接孔51的数量可以为两个以上，当为两个以上时，两个以上第二连接孔51在塔筒段11的周向Y上相互间隔设置，每个第二连接孔51与其中一个法兰孔111a相对设置并通过紧固件相互连接，相邻两个连接装置21之间的垫块50的数量可以为一个，当然也可以为两个以上。垫块50与连接装置21的固定部211相互拼接，共同填充相邻两个端法兰111在轴向X上的间隙，以保证塔架本体10整体的密封性能。
请一并参阅图9及图10，当然，在一些其他的示例中，还可以限定至少一组相互连接的两个端法兰111面向彼此的表面相互间隔并形成间隙，间隙内设置有与端法兰111形状相匹配的转接件60，转接件60面向端法 兰111的其中一个表面设置有第二开口槽61，以在转接件60与其中一个端法兰111之间形成安装槽，固定部211设置于安装槽内，转接件60上设置有第三连接孔62，第三连接孔62在轴向X上与端法兰111的其中一个法兰孔111a相对设置并通过紧固件相互连接。通过上述设置，能够在保证端法兰111的完整性的基础上完成转接件60在相邻两个端法兰111之间的安装，同时，转接件60的设置同样能够提高相邻两个塔筒段11之间连接的稳定性。
可选的，转接件60的形状可以与端法兰111的形状相匹配，可以为环形，具体可以为圆环形，第三连接孔62的数量可以为两个以上并与端法兰111上的连接孔一一对应设置，一一对应的第三连接孔62与法兰孔111a之间通过紧固件连接。通过上述设置，能够更好的保证塔架本体10的密封要求，进一步的，连接装置21上方的各塔筒段11的重量将通过转接件60实现与转接件60接触的两端法兰111之间的传递，连接装置21不承受或者只承受较小的力，因此，同样能够进一步保证连接装置21的使用寿命。
请一并参阅图2至图11，作为一种可选的实施方式，上述各实施例的拉索式塔架1，进一步包括设置于塔架本体10内部的加强组件40，加强组件40包括中心固定件41以及与中心固定件41连接的抗变形件42，抗变形件42远离中心固定件41的一端与塔筒段11及连接组件20中的一者连接。通过设置上述结构形式的加强组件40，能够使得当拉索组件30的各拉索31拉力较大时，能够避免或者降低端法兰111被张拉变形，保证拉索式塔架1安装的效率及可靠性，增加此结构一方面可以适当减轻拉索31连接部位端法兰111的重量，降低成本，同时还能够防止拉索31张拉端法兰111变形而导致的安装困难问题的产生。
作为一种可选的实施方式，中心固定件41呈闭合的环状结构，抗变形件42呈沿径向Z延伸的条状结构且具有相对的第一端部以及第二端部，第一端部连接于中心固定件41且第二端部连接于塔架本体10及连接组件20中的一者。中心固定件41以及抗变形件42采用上述结构形式，结构简单，易于成型，且能够更好的避免端法兰111的张拉变形。
可选的，抗变形件42的数量为两个以上且沿塔筒段11的周向Y依次分布，可选为均匀分布。通过设置两个以上抗变形件42，能够进一步避免 端法兰111的变形，同时还能够使得塔架本体10整体受力更加均匀，保证其安全性能。
可选的，中心固定件41与塔架本体10同轴设置，能够保证加强组件40对端法兰111提供拉力的均匀性，更好的防止加强组件40变形。加强组件40进一步包括锁紧部件43，第一端部沿着塔架本体10的径向Z伸入中心固定件41内并与锁紧部件43可拆卸连接，第一端部伸入中心固定件41内的尺寸可调。通过上述设置，能够便于抗变形件42与中心固定件41之间的连接，同时，还能够根据对端法兰111的加强需求调整抗变形件42伸入中心固定件41内部的尺寸，更好的满足防止端法兰111的张拉形变的要求。
在一些可选的实施例中，抗变形件42可以为刚性杆件，此时，锁紧部件43可以为锁紧螺母，锁紧部件43与第一端部螺纹连接。可选的，刚性杆件具体可以为拉杆、螺杆例如双头螺杆等，通过上述设置，可以通过旋拧锁紧部件43，改变抗变形件42对端法兰111之间的拉力。抗变形件42采用刚性杆件只是一种可选的实施方式，在一些其他的示例中，抗变形件42也可以采用柔性索，例如可以是钢丝绳等，此时锁紧部件43可以采用具有夹持固定作用的夹持帽，锁紧部件43夹持固定于抗变形件42的第一端部，可以通过改变锁紧部件43夹持第一端部伸入中心固定件41内部的位置来改变抗变形件42对端法兰111的拉力。
可选的，中心固定部211可以为圆形环，当然，在一些其他的示例中，中心固定部211也可以为三角形环、方形环或者其他多边形环，可选为正多边形环。
可选的，抗变形件42的第二端部与连接装置21或者塔架本体10的一者之间可以采用固定连接，例如采用焊接的方式连接，当然，也可以采用可拆卸连接方式连接，例如采用螺栓紧固的连接方式连接。
在一些其他的示例中，抗变形件42的数量与连接装置21的数量可以相同且一一对应设置，每个抗变形件42的第二端部上设置有第一连接件421，每个连接装置21上设置有与其中第一连接件421相互连接的第二连接件224，第二端部通过第一连接件421以及第二连接件224与对应的连接装置21相连接。通过上述设置，能够优化加强组件40对端法兰111的加强效果，同时便于抗变形件42与连接装置21以及中心固定件41之间的 连接。
由于端法兰111设置连接装置21的位置强度相对薄弱，通过将抗变形件42与连接装置21连接，能够对端法兰111强度相对较弱的位置进行加强，进而更好的避免端法兰111在承受拉索31较大外力时产生形变。
在具体实施时，第二连接件224可以连接于连接装置21的固定部211，当然，当连接装置21包括限位部223时，第二连接件224也可以连接于连接装置21的限位部223。
可选的，第一连接件421以及第二连接件224之间可以为可拆卸连接，第一连接件421以及第二连接件224的一者可以为凸起，另一者可以为具有与凸起形状相匹配的容纳槽的铰接块结构，凸起至少部分伸入容纳槽内并通过转轴相互铰接。该种连接方式结构简单，且使得抗变形件42相对连接装置21具有转动自由度，能够弥补加工或者安装时的精度误差，易于抗变形件42与中心固定件41以及连接装置21之间的连接，同时易于加强组件40整体的拆装，便于加强组件40的更换以及维护。
当然，第一连接件421以及第二连接件224采用上述可拆卸连接方式只是一种可选的方式，在一些其他的示例中，第一连接件421以及第二连接件224可以一者采用挂钩且另一者采用与挂钩相互勾挂的挂环结构，同样能够满足二者之间的可拆卸连接要求。
可以理解的是，上述各实施例均是以抗变形件42的第二端部与连接装置21连接为例进行举例说明的，在一些其他的示例中，第二端部还可以与塔架本体10连接，例如与端法兰111连接，其与端法兰111的连接方式同与连接装置21的连接方式，在此就不重复赘述。
在具体实施时，加强组件40的各抗变形件42可以位于塔筒段11的轴向X上的同一高度。当然，在一些其他的示例中，在塔筒段11的轴向X上，各抗变形件42中，可以至少两个抗变形件42的高度不同，例如，其中一个抗变形件42的第二端部可以连接在连接装置21上，另一个抗变形件42的第二端部可以连接在端法兰111或者塔筒段11的筒壁上，加强组件40中其中一个或者两个以上抗变形件42甚至可以带角度张紧，只要能够阻止端法兰111朝拉索31的张拉方向变形发生则可。
可选的，请继续参阅图2至图12，上述各实施例的拉索31面向连接组件20的一端设置有铰接头32，铰接头32与安装位222c相互铰接。通 过上述设置，既能够满足拉索31与连接装置21之间的连接要求，同时，还能够使得拉索31相对连接装置21具有一定的转动自由度，可以估计需要调整各拉索的受力方向，使得塔架本体10在风力的作用下欲产生晃动时，同样能够保证塔架本体10整体受拉索组件30拉力的均匀性，进而能够保证拉索式塔架1整体抵抗风能的能力，保证拉索式塔架1的稳定形以及可靠性。
请一并参阅图12，可选的，拉索式塔架1所包括的拉索31数量可以为三根，但不限于三根，当拉索31数量大于三根时，拉索31的受力方向与塔架本体10的中心线的延伸方向可以相交，但需要考虑塔架增加拉索31部位下方的塔架本体10的强度能够抵抗风力发电机组绕塔架本体10的中心线方向的扭转力矩作用，因拉索31受力方向过塔架本体10的中心线时拉索31对风机绕塔架中心线方向的扭转力矩没有抵抗作用，如果增加拉索31部位下方的筒体强度在设计时不能够抵抗风机绕塔架中心线方向的扭转力矩作用，那么多根拉索31受力方向不能相交于与塔架本体10的中心线，需要跟塔架本体10的中心线存在一个角度，即，在一些可选的示例中，需要至少一个拉索31的受力方向与塔架本体10的中心线的延伸方向不相交，以用于抵抗风机绕塔架中心线方向的扭转力矩作用，可选的，所述的不相交可以为在空间上不相交，其他的拉索31的受力方向与塔架本体10的中心线的延伸方向可以相交，当然，也可以不相交。
请继续参阅图12，可选的，拉索式塔架1的多根拉索31中，可以每两个拉索31为一组，各组中的两个拉索31的受力方向之间的夹角为A、B、C，夹角A、B、C的数值可以相同，当然，也可以不同，具体可以根据拉索31的数量以及拉索式塔架1的强度要求设定。
可选的，拉索式塔架1所包括的拉索31在轴向X上，可以多层，即不限于在同一层设置拉索组件30，对于拉索31多层的情况，即拉索组件30的数量为两个以上时，两个以上拉索组件30在塔筒段11的轴向X上间隔设置的情况，同样需要考虑风力发电机组绕塔架本体10的中心线方向的扭转力矩作用，如设计之初已经考虑了增加拉索31部位以下塔架本体10本身能够抵抗风机对塔架本体10的扭转力矩作用，那么拉索31的受力方向可以通过塔架本体10中心线。如果设计之初塔架本体10本身不能够抵抗风力发电机组对塔架本体10的扭转力矩作用，那么多根拉索31的受 力方向不能全部跟塔架本体10的中心线相交，至少两个拉索31的受力方向与塔架本体10的中心线的延伸方向不相交，用以抵抗风机对塔架本体10的扭转力矩作用。
由此，本申请实施例提供的连接装置21，因其包括固定部211、安装部222以及限位部223，且固定部211具有预定的长度及厚度，固定部211上设置有沿其自身厚度方向N贯通的第一连接孔211c，使得连接装置21在应用至拉索式塔架1作为其一部分时，至少部分固定部211能够夹持于塔架本体10的相邻两个端法兰111之间且第一连接孔211c与法兰孔111a通过紧固件连接，既能够满足连接组件20的各连接装置21与塔架本体10的连接要求，且便于各连接装置21与塔架本体10之间的连接以及更换及维护，相应设置的限位部223能够起到限位作用，保证连接装置21与端法兰111之间连接的可靠性。
且连接装置21在应用至拉索式塔架1时，其安装部222能够凸出于塔筒段11的外周面设置并通过安装位222c与拉索31连接，使得本申请实施例提供的连接装置21既能够拉索31与塔架本体10的连接要求，同时，连接装置21还具有结构简单，体积小，便于运输，不会影响塔架的整体重量，并易于加工制造以及安装，能够更加优化拉索式塔架1的性能等优点。
而本申请实施例提供的拉索式塔架1以及风力发电机组，因其包括连接组件20，而连接组件20包括两个以上上述各实施例的连接装置21，既能够满足拉索组件30各拉索31与塔架本体10之间的连接要求，且便于各连接装置21与塔架本体10之间的连接以及更换及维护，对于塔架本体10本身10来讲结构变化小，连接装置21、垫块50、转接件60可以实现通用，只对加工部分做局部调整则可，降低成本，对于部分存量风力发电机组可以采用法兰上的过渡连接保证改造机型塔架本体不用返厂改造，直接在现有的基础上增加拉索31，保证改造项目的经济性，利于拉索式塔架1的全面推广，进而提高风力发电机组的经济收益。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而 是包括落入权利要求的范围内的所有技术方案。

Claims (15)

  1. 一种拉索式塔架(1)，其中，包括：
    塔架本体(10)，包括多个相互层叠设置的塔筒段(11)，每个所述塔筒段(11)在自身轴向(X)的两端分别具有端法兰(111)，相邻两个所述塔筒段(11)的所述端法兰(111)通过紧固件连接；
    连接组件(20)，设置于相邻两个所述塔筒段(11)之间，所述连接组件(20)包括两个以上沿所述塔筒段(11)的周向(Y)依次分布的连接装置(21)，每个所述连接装置(21)包括沿所述塔筒段(11)的径向(Z)上相继分布且相交设置的固定部(211)以及安装部(222)，相邻两个所述端法兰(111)共同夹持至少部分所述固定部(211)并与所述固定部(211)可拆卸连接，所述安装部(222)凸出于所述塔架本体(10)的外周面且具有安装位(222c)；
    拉索组件(30)，包括两个以上沿所述周向(Y)间隔分布的拉索(31)，每个所述拉索(31)的一端通过所述安装位(222c)与其中一个所述连接装置(21)连接且另一端用于连接基础。
  2. 根据权利要求1所述的拉索式塔架(1)，其中，所述固定部(211)与所述安装部(222)分别为板体，所述固定部(211)与所述安装部(222)为一体式结构。
  3. 根据权利要求2所述的拉索式塔架(1)，其中，在所述轴向(X)上，所述固定部(211)具有相对设置的第一表面(211a)以及第二表面(211b)，所述安装部(222)具有相对设置的第三表面(222a)以及第四表面(222b)，所述安装位(222c)为贯通所述第三表面(222a)以及所述第四表面(222b)的通孔；
    所述第一表面(211a)与所述第三表面(222a)相交设置并形成第一夹角，所述第二表面(211b)与所述第四表面(222b)相交设置并形成第二夹角，其中，所述第一夹角大于0°且小于等于60°；和/或，所述第二夹角大于0°且小于等于60°。
  4. 根据权利要求1所述的拉索式塔架(1)，其中，所述连接装置 (21)进一步包括限位部(223)，所述限位部(223)设置于所述固定部(211)在所述径向(Z)远离所述安装部(222)的一端，所述限位部(223)沿所述轴向(X)延伸并凸出于所述固定部(211)；
    和/或，所述固定部(211)上设置有第一连接孔(211c)，所述第一连接孔(211c)在所述轴向(X)上与所述端法兰(111)的其中一个法兰孔(111a)相对设置并通过所述紧固件相互连接。
  5. 根据权利要求1所述的拉索式塔架(1)，其中，至少一组相互连接的两个所述端法兰(111)面向彼此的表面相互抵靠且两个所述端法兰(111)的至少一者设置有第一开口槽(111b)，以在相邻两个所述端法兰(111)之间形成容纳槽，所述固定部(211)设置于所述容纳槽。
  6. 根据权利要求1所述的拉索式塔架(1)，其中，至少一组相互连接的两个所述端法兰(111)面向彼此的表面相互间隔并形成间隙，所述固定部(211)位于所述间隙内，相邻两个所述连接装置(21)之间设置有垫块(50)；
    在所述轴向(X)上，所述垫块(50)的高度等于或者高于所述固定部(211)的高度，所述垫块(50)上设置有第二连接孔(51)，所述第二连接孔(51)在所述轴向(X)上与所述端法兰(111)的其中一个法兰孔(111a)相对设置并通过所述紧固件相互连接。
  7. 根据权利要求1所述的拉索式塔架(1)，其中，至少一组相互连接的两个所述端法兰(111)面向彼此的表面相互间隔并形成间隙，所述间隙内设置有与所述端法兰(111)形状相匹配的转接件(60)；
    所述转接件(60)面向所述端法兰(111)的其中一个表面设置有第二开口槽(61)，以在所述转接件(60)与其中一个所述端法兰(111)之间形成安装槽，所述固定部(211)设置于所述安装槽内，所述转接件(60)上设置有第三连接孔(62)，所述第三连接孔(62)在所述轴向(X)上与所述端法兰(111)的其中一个法兰孔(111a)相对设置并通过所述紧固件相互连接。
  8. 根据权利要求1至7任意一项所述的拉索式塔架(1)，其中，所述拉索式塔架(1)进一步包括设置于所述塔架本体(10)内部的加强组 件(40)，所述加强组件(40)包括中心固定件(41)以及与所述中心固定件(41)连接的抗变形件(42)，所述抗变形件(42)远离所述中心固定件(41)的一端与所述塔筒段(11)及所述连接组件(20)中的一者连接。
  9. 根据权利要求8所述的拉索式塔架(1)，其中，所述中心固定件(41)呈闭合的环状结构，所述抗变形件(42)呈沿所述径向(Z)延伸的条状结构且具有相对的第一端部以及第二端部，所述第一端部连接于所述中心固定件(41)且所述第二端部连接于所述塔架本体(10)及所述连接组件(20)中的一者，所述抗变形件(42)的数量为两个以上且沿所述周向(Y)依次分布。
  10. 根据权利要求9所述的拉索式塔架(1)，其中，所述中心固定件(41)与所述塔架本体(10)同轴设置；
    所述加强组件(40)进一步包括锁紧部件(43)，所述第一端部沿着所述径向(Z)伸入所述中心固定件(41)内并与所述锁紧部件(43)可拆卸连接，所述第一端部伸入所述中心固定件(41)内的尺寸可调。
  11. 根据权利要求9所述的拉索式塔架(1)，其中，所述抗变形件(42)的数量与所述连接装置(21)的数量相同且一一对应设置，每个所述抗变形件(42)的所述第二端部上设置有第一连接件(421)，每个所述连接装置(21)上设置有与其中一个所述第一连接件(421)连接的第二连接件(224)，所述第二端部通过所述第一连接件(421)以及所述第二连接件(224)与对应的所述连接装置(21)相互连接。
  12. 根据权利要求1至7任意一项所述的拉索式塔架(1)，其中，所述拉索(31)面向所述连接组件(20)的一端设置有铰接头(32)，所述铰接头(32)与所述安装位(222c)相互铰接。
  13. 根据权利要求1至7任意一项所述的拉索式塔架(1)，其中，至少一个所述拉索(31)的受力方向与所述塔架本体(10)的中心线的延伸方向不相交。
  14. 一种风力发电机组，其中，包括如权利要求1至13任意一项所 述的拉索式塔架(1)。
  15. 一种连接装置(21)，用于连接塔架本体(10)以及拉索(31)，其中，所述连接装置(21)包括：
    固定部(211)，具有预定的长度及厚度，所述固定部(211)上设置有沿其自身厚度方向(N)贯通的第一连接孔(211c)，用于与所述塔架本体(10)连接；
    安装部(222)，设置于所述固定部(211)在自身长度方向(M)的一端并与所述固定部(211)相交，所述安装部(222)具有安装位(222c)，所述安装位(222c)为通孔且轴线与所述第一连接孔(211c)的轴线相交设置；
    限位部(223)，设置于所述固定部(211)在所述长度方向(M)的另一端并沿所述固定部(211)的厚度方向(N)凸出于所述固定部(211)。
PCT/CN2020/070134 2019-09-27 2020-01-02 拉索式塔架、风力发电机组及连接装置 WO2021056923A1 (zh)

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