Wind power tower tube assembly auxiliary positioning device and wind power tower tube

Abstract

The invention discloses a wind power tower tube assembly auxiliary positioning device which comprises a first flange, a second flange is arranged on one side of the first flange, a guide assembly is arranged between the first flange and the second flange, and the guide assembly comprises a first positioning ring, a second positioning ring, a third positioning ring and a fourth positioning ring, the second positioning ring is arranged close to the second flange; the first section of guide device is mounted on the first positioning ring; and the second-section guide device is arranged on the side, close to the second positioning ring, of the first-section guide device. The invention relates to the technical field of wind power tower drums, the bottom tower drum is directly suspended and driven to rotate by hoisting equipment after being connected in advance and fixed through a guide assembly, and the top tower drum is directly and accurately butted with the bottom tower drum after being erected, so that in the whole process, the top tower drum cannot be influenced by wind power to randomly shake, and the wind power generation efficiency is improved. The butt joint positions of the two sections of tower barrels do not need to be aligned with the assistance of multiple persons, and assembling time is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine towers, and in particular to a wind turbine tower assembly auxiliary positioning device and a wind turbine tower. Background Art

[0002] The wind turbine tower is the supporting component of the wind turbine generator set. Its most obvious features are its large diameter and high height. It is the tower pole of wind power generation. It mainly plays a supporting role in the wind turbine generator set and absorbs the vibration of the unit. The production process of wind turbine tower is generally as follows: CNC cutting machine unloads, thick plates need to be beveled, and after the plate rolling machine rolls the plate into shape, spot welding and positioning are carried out. After confirmation, the internal and external longitudinal seams are welded. After the roundness is checked, if there is a problem, a secondary rounding is carried out. After the single-section cylinder is welded, the roller frame is assembled and spot welded by a hydraulic group. After the internal and external circumferential seams are welded, straightness and other tolerances are checked, and after the flange is welded, non-destructive testing and flatness inspection of the weld are carried out. After sandblasting and painting, the internal parts are installed and the finished product is inspected, and then it is transported to the installation site.

[0003] At present, the common assembly method is that the first section of the tower is lifted by lifting equipment, and several workers assist in docking it to the bolts of the pre-buried base on the ground and fixing it. During the installation of the second section of the tower, several workers are required to climb to the inside of the first section of the tower, and the second section of the tower is lifted to a high altitude by the lifting equipment and moved to the top of the first section of the tower. After the positions are close to each other, the workers inside the first section of the tower assist in achieving precise docking with the first section of the tower. However, due to the long distance between the operators of the lifting equipment and the errors in the operation of large equipment, the actual docking process is time-consuming and labor-intensive, requiring the cooperation of multiple people, and the workers inside the first section of the tower are also at risk of collision and accidental injury with the second section of the tower. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a wind turbine tower assembly auxiliary positioning device and a wind turbine tower, which solves the problem that the wind turbine tower assembly in the traditional technology is time-consuming and labor-intensive and requires the cooperation of multiple people.

[0005] To achieve the above-mentioned purpose, the present invention provides an auxiliary positioning device for wind turbine tower assembly, comprising a first flange, a second flange is arranged on one side of the first flange, a guide assembly is arranged between the first flange and the second flange, and the guide assembly comprises: a first positioning ring, arranged close to the first flange; a second positioning ring, arranged close to the second flange; a first-stage guide device, installed on the first positioning ring; a second-stage guide device, arranged on the side of the first-stage guide device close to the second positioning ring; a connecting device, installed between the second-stage guide device and the second positioning ring; a recovery device, arranged on the side of the first positioning ring away from the first-stage guide device, and detachably connected to the second flange; wherein, the first positioning ring and the second positioning ring are respectively connected to the two sections of the tower, and the first flange and the second flange are precisely docked through the first-stage guide device and the second-stage guide device, the connecting device connects the second positioning ring and the two-stage guide device, and the recovery device assists the first flange in docking with the second flange.

[0006] Preferably, the guide device includes: two positioning tubes, which are respectively fixed to the two sides of the bottom of the inner wall of the first positioning ring; a connecting piece, which is fixed between the two positioning tubes; a U-shaped rod, which is respectively inserted into the inner walls of the two positioning tubes on both sides; a first elastic piece, one end of which is fixed to the surface of the connecting piece, and the other end of which is fixed to the surface of the U-shaped rod; wherein the two positioning tubes are reinforced by the connecting piece and the U-shaped rod is limited, and have a tendency to move away from the second positioning ring under the action of the first elastic piece.

[0007] Preferably, the two-stage guiding device includes: two connecting rods, which are respectively rotatably connected to the two ends of the U-shaped rod; a circular hole, which is opened on the side of the connecting rod surface away from the U-shaped rod; a notch, which is opened on the surface of the connecting rod and is connected to the circular hole; a limiting rod, which simultaneously passes through the two circular holes on the surfaces of the connecting rods; two second elastic members, which are provided with one end fixedly connected to the side of the inner wall of the notch away from the circular hole; two limiting grooves, which are respectively provided on the outer wall of the limiting rod and are respectively movably connected to the ends of the two second elastic members; wherein, the connecting rod has a tendency to approach the second positioning ring through the cooperation of the second elastic member and the limiting rod, and the limiting groove realizes the connection between the limiting rod and the second elastic member, and realizes the rotatable connection between the limiting rod and the second elastic member.

[0008] Preferably, the connecting device includes: two fixing seats, which are respectively fixed to the top of the second positioning ring; a reserved groove, which is opened on the side where the two fixing seats are close to each other and fits with the bottom of the outer wall end of the limiting rod; a cover plate, which is fixed to the top of the fixing seat by bolts; a reserved upper groove, which is opened at the bottom of the cover plate and fits with the top of the outer wall end of the limiting rod; a fitting surface, which is arranged between the fixing seat and the cover plate; wherein, the fixing seat and the cover plate cooperate to fix the limiting rod and the second positioning ring, and the reserved groove and the reserved upper groove are conducive to the close installation of the limiting rod on the fixing seat, and the fitting surface improves the assembly accuracy of the fixing seat and the cover plate.

[0009] Preferably, one end of each of the two positioning tubes is provided with a notch close to the fixing seat, and the top of the second positioning ring is provided with a compensating notch located between the two fixing seats.

[0010] Preferably, the recovery device includes: a base frame, which is arranged on the side of the inner wall of the first positioning ring away from the U-shaped rod; a wire roller, which is installed on the surface of the base frame; a servo motor, which is fixed to the side of the base frame and installed at one end of the wire roller; a main steel wire, which is fixed to the outer wall of the wire roller; wherein the base frame is used to fix the wire roller and the servo motor, and the servo motor controls the wire roller to reel in the main steel wire and pull the second positioning ring close to the first positioning ring.

[0011] Preferably, a hanging ring is fixedly connected to the end of the main steel wire, a plurality of auxiliary steel wires are installed on the outer wall of the hanging ring, a hook is fixedly connected to the end of the auxiliary steel wire, and a through nail is installed on the outer wall of the hook through a through hole.

[0012] Preferably, a reserved insertion hole is opened on the surface of the base frame, a screw corresponding to the reserved insertion hole is fixedly connected to the top of the inner wall of the first positioning ring, and a fixing nut is threadedly connected to the outer wall of the screw.

[0013] The present invention also provides a wind turbine tower, comprising a basic tower, a heightened tower and an auxiliary positioning device for wind turbine tower assembly, wherein the ends of the basic tower and the heightened tower that are close to each other are respectively fixed to the end faces of the first flange and the second flange, the first positioning ring is fixed to the inner wall of the basic tower on one side close to the heightened tower, the outer wall of the second positioning ring is provided with a reserved card slot, and the inner wall of the heightened tower is provided with a reserved card block corresponding to the reserved card slot.

[0014] Preferably, a connecting ring is sleeved on a side of the outer wall of the basic tower away from the heightened tower, and a receiving seat is fixedly connected to the outer wall of the connecting ring, and a fixing belt is provided on the receiving seat.

[0015] Beneficial Effects

[0016] The present invention provides a wind turbine tower assembly auxiliary positioning device and a wind turbine tower. The wind turbine tower assembly auxiliary positioning device and the wind turbine tower have the following beneficial effects: the two sections of the tower are connected in advance on the ground through a guide assembly, and after the bottom tower is fixed, the top tower is directly lifted by a hoisting device and driven to rotate. After the top tower is vertical, it is directly and accurately docked with the bottom tower. During the whole process, the top tower will not be affected by the wind and shake at will, and there is no need for multiple people to assist in aligning the docking position of the two sections of the tower, which saves assembly time, and has lower technical requirements for the operator of the hoisting equipment. The docking is accurate, and it is particularly suitable for the assembly of a two-section wind turbine tower.

[0017] After the wind turbine tower is assembled, most of the structure of the wind turbine tower assembly auxiliary positioning device can be dismantled without affecting the installation of the interior of the tower, ladders, platforms, etc., and the device is applicable to wind turbine towers of the same batch and can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 Another structural schematic diagram of the present invention;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the first positioning ring, the second positioning ring and the U-shaped rod;

[0022] Figure 5 for Figure 4 Schematic diagram of the structure of the central positioning tube, connecting piece and U-shaped rod;

[0023] Figure 6 for Figure 4 A schematic diagram of the structure of the second positioning ring, the reserved slot and the fixing seat;

[0024] Figure 7 for Figure 6 A schematic diagram of the structure of the middle fixing seat, the cover plate and the limiting rod;

[0025] Figure 8 for Figure 3 Schematic diagram of the structure of the middle hanging ring, hook and nail;

[0026] Fig. 9 for Figure 8 Schematic diagram of the structure of the middle steel wire, hook and nail;

[0027] Fig.10 for Figure 5 Schematic diagram of the structure of the middle connecting rod, circular hole and notch.

[0028] In the figure: 1, first flange; 2, second flange; 3, guide assembly; 31, first positioning ring; 311, screw; 312, fixing nut; 32, second positioning ring; 321, compensation notch; 322, reserved slot; 33, one-stage guide device; 331, positioning tube; 332, connecting member; 333, U-shaped rod; 334, first elastic member; 34, two-stage guide device; 341, connecting rod; 342, round hole; 343, notch; 344, limit rod; 345, second elastic member; 346, limit slot; 35. connecting device; 351. fixing seat; 352. reserved lower groove; 353. cover plate; 354. reserved upper groove; 355. fitting surface; 36. recovery device; 361. base frame; 3611. reserved socket; 362. wire roller; 363. servo motor; 364. main steel wire; 3641. hanging ring; 3642. auxiliary steel wire; 3643. hook; 3644. nail; 4. heightening tower; 41. reserved block; 5. basic tower; 6. connecting ring; 7. receiving seat; 8. fixing belt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Through the personnel in this field, all the electrical components in this case are connected to their adapted power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle. The electrical connection is completed in the order of working between the electrical components. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no further explanation of electrical control is given. Through the personnel in this field, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0031] Due to the long distance between the operators of the lifting equipment and the errors in the operation of large equipment, the actual docking process is time-consuming and labor-intensive, requiring the cooperation of multiple people, and the workers inside the first section of the tower are also at risk of collision and accidental injury with the second section of the tower.

[0032] In view of this, the present invention provides a wind turbine tower assembly auxiliary positioning device and a wind turbine tower. The two sections of the tower are connected in advance at the docking point on the ground through a guide assembly. After the bottom tower is fixed, the top tower is directly lifted by a lifting equipment and driven to rotate. After the top tower is vertical, it is directly and accurately docked with the bottom tower. During the whole process, the top tower will not be affected by the wind and will not shake at will. There is no need for multiple people to assist in aligning the docking position of the two sections of the tower, which saves assembly time and has lower technical requirements for the lifting equipment operator. The docking is accurate, and it is particularly suitable for the assembly of two-section wind turbine towers.

[0033] Depend on Figure 1-10 It can be seen that an auxiliary positioning device for wind power tower assembly in this case includes a first flange 1, a second flange 2 is arranged on one side of the first flange 1, and a guide assembly 3 is arranged between the first flange 1 and the second flange 2, and the guide assembly 3 includes: a first positioning ring 31, arranged close to the first flange 1; a second positioning ring 32, arranged close to the second flange 2; a first-stage guide device 33, installed on the first positioning ring 31; a second-stage guide device 34, arranged on the side of the first-stage guide device 33 close to the second positioning ring 32; a connecting device 35, installed between the second-stage guide device 34 and the second positioning ring 32; a recovery device 36, arranged on the side of the first positioning ring 31 away from the first-stage guide device 33, and detachably connected to the second flange 2; wherein the first positioning ring 31 and the second positioning ring 32 are respectively connected to the two sections of the tower, and the first flange 1 and the second flange 2 are precisely docked through the first-stage guide device 33 and the second-stage guide device 34, the connecting device 35 connects the second positioning ring 32 and the second-stage guide device 34, and the recovery device 36 assists the first flange 1 to dock with the second flange 2.

[0034] In the specific implementation process, it is worth pointing out that the first flange 1 and the second flange 2 are the connecting fittings of the two sections of the wind turbine tower. The wind turbine tower in the prior art is connected by flanges and fixed by bolts. The first positioning ring 31 and the second positioning ring 32 in the guide assembly 3 are respectively located on the inner wall of one side of the two end towers close to each other. The parallel arrangement of the wind turbine towers at both ends can be achieved through a first-stage guide device 33 and a second-stage guide device 34. First, the towers at both ends are placed horizontally side by side, the bottom of the bottom tower and the top of the top tower are in the same direction, and the ends connected to the bottom tower and the top tower are in the same direction, and the first positioning ring 31 and the second positioning ring 32 are fixed on the inner wall of the bottom tower and the inner wall of the top tower respectively on this side. At this time, the guide assembly 3 is U-shaped as a whole through a first-stage guide device 33 and a second-stage guide device 34. The bottom tower, the top tower and the guide assembly 3 are lifted together by hoisting equipment to fix the bottom of the bottom tower. On the embedded base, at this time, the bottom tower and the top tower are still parallel to each other, but perpendicular to the ground, and the guide assembly 3 is located in the air. The top tower is lifted separately by the lifting equipment at one end away from the guide assembly 3, so that the top tower is rotated a total of 180 degrees with the first-stage guide device 33 and the second-stage guide device 34 as the axis. At this time, the top tower is accurately docked with the bottom tower. During this process, the first-stage guide device 33, the second-stage guide device 34 and the connecting device 35 are all rotated relatively, assisted by the recovery device 36 and cooperated with external lifting equipment. In this way, during the installation of the top tower, there is no need to dock the bottom of the top tower with the top of the bottom tower through the lifting device, which reduces the operating difficulty of the lifting device control personnel and greatly shortens the assembly time. The docking is very accurate. While shortening the assembly time, the top tower will not shake, and the load on the lifting device and the lifting wire can be reduced, reducing the risk of the top tower falling off.

[0035] In one practicable manner, see Figure 4 and Figure 5 A section of the guide device 33 includes: two positioning tubes 331, which are respectively fixed to the two sides of the bottom of the inner wall of the first positioning ring 31; a connecting piece 332, which is fixed between the two positioning tubes 331; a U-shaped rod 333, which is respectively inserted into the inner walls of the two positioning tubes 331 on both sides; a first elastic piece 334, one end of which is fixed to the surface of the connecting piece 332, and the other end is fixed to the surface of the U-shaped rod 333; wherein the two positioning tubes 331 are reinforced by the connecting piece 332, and the U-shaped rod 333 is limited, and under the action of the first elastic piece 334, they have a tendency to move away from the second positioning ring 32.

[0036] In the specific implementation process, it is worth pointing out that the positioning tube 331 is fixed inside the bottom tower by the first positioning ring 31, and the cooperation between the two positioning tubes 331 and the U-shaped rod 333 ensures that the U-shaped rod 333 can only move inside the positioning tube 331, and the angle and direction cannot be adjusted, that is, the axis of the U-shaped rod 333 and the bottom tower are parallel. In the process of docking the top tower and the bottom tower, the first elastic member 334 gives the U-shaped rod 333 elastic force to insert into the bottom tower, which is conducive to the top tower and the bottom tower to approach and dock with each other.

[0037] In one practicable manner, see Figure 5 , 6 7, the two-stage guide device 34 includes: two connecting rods 341, which are respectively rotatably connected to the two ends of the U-shaped rod 333; a circular hole 342, which is opened on the surface of the connecting rod 341 away from the U-shaped rod 333; a notch 343, which is opened on the surface of the connecting rod 341 and communicates with the circular hole 342; a limiting rod 344, which simultaneously passes through the circular holes 342 on the surfaces of the two connecting rods 341; two second elastic members 345, one end of which is fixedly connected to the notch 343 The wall is away from the side of the circular hole 342; two limiting grooves 346 are provided, which are respectively provided on the outer wall of the limiting rod 344 and are respectively movably connected with the ends of the two second elastic members 345; wherein, the connecting rod 341 has a tendency to approach the second positioning ring 32 through the cooperation of the second elastic member 345 and the limiting rod 344, and the limiting groove 346 realizes the connection between the limiting rod 344 and the second elastic member 345, and realizes the rotational connection between the limiting rod 344 and the second elastic member 345.

[0038] In the specific implementation process, it is worth pointing out that the rotation connection point of the connecting rod 341 and the U-shaped rod 333 is the first 90-degree bending position of the guide assembly 3 in the U shape. In the process of docking the top tower and the bottom tower, the end of the top tower close to the top of the bottom tower pulls the U-shaped rod 333 along the inner wall of the positioning tube 331 toward the inside of the bottom tower under the action of gravity and the first elastic member 334. Finally, as the top tower gradually approaches the vertical angle, the connecting rod 341 will be connected with the U-shaped The movement direction of rod 333 is parallel, that is, it is in a straight line with U-shaped rod 333, and is inserted into the interior of positioning tube 331 together. At this time, U-shaped rod 333 and connecting rod 341 will no longer rotate relative to each other. As the lifting equipment continues to lift, the top tower continues to rotate in the vertical direction until it is completely vertical. The limiting rod 344 also turns ninety degrees inside the circular hole 342. The cross-section of the limiting rod 344 is generally rectangular, and the shorter side is in the shape of an arc. The arc is concentric with the circular hole 342 and has the same diameter, ensuring The two sides of the limit rod 344 fit with the circular hole 342 (it can be understood here that the position of the limit rod 344 and the circular hole 342 is the second 90-degree bending position of the U-shaped guide assembly 3). At this point, the bottom tower and the top tower are completely coaxial. Of course, in this process, the limit rod 344 is flipped 90 degrees, and the smaller side of the limit rod 344 slides into the inside of the notch 343 under the gravity of the top tower and the pulling force of the second elastic member 345. Due to the size of the notch 343 and the limit rod The smaller side of 344 matches, so the limit rod 344 cannot rotate after entering the notch 343, which can ensure the coaxiality of the bottom tower and the top tower. At this time, the guide assembly 3 is converted from the initial U-shape to an overall vertical state. After that, due to the gravity lifting equipment of the top tower, the top tower is attached to the top of the bottom tower, the first flange 1 and the second flange 2 are attached to each other and fixed by external bolts, the lifting equipment and the top tower are separated, and the assembly of the towers at both ends is completed.

[0039] In one practicable manner, see Figure 6 and Figure 7The connecting device 35 includes: two fixing seats 351, which are respectively fixed to the top of the second positioning ring 32; a reserved groove 352, which is opened on the side where the two fixing seats 351 are close to each other and fits with the bottom of the outer wall end of the limiting rod 344; a cover plate 353, which is fixed to the top of the fixing seat 351 by bolts; a reserved upper groove 354, which is opened at the bottom of the cover plate 353 and fits with the top of the outer wall end of the limiting rod 344; a fitting surface 355, which is arranged between the fixing seat 351 and the cover plate 353; wherein the fixing seat 351 and the cover plate 353 cooperate to fix the limiting rod 344 and the second positioning ring 32, the reserved groove 352 and the reserved upper groove 354 are conducive to the limiting rod 344 being tightly installed on the fixing seat 351, and the fitting surface 355 improves the assembly accuracy of the fixing seat 351 and the cover plate 353.

[0040] In the specific implementation process, it is worth pointing out that the reserved groove 352 on the top of the fixing seat 351 is to improve the assembly accuracy of the fixing seat 351 and the limiting rod 344, and is fixed by the cover plate 353 and bolts to ensure the relative fixation of the limiting rod 344 and the second positioning ring 32, thereby improving the coaxiality and accuracy of the top tower and the bottom tower during the assembly process. The purpose of using the cover plate 353 and bolts to connect the limiting rod 344 and the fixing seat 351 is to facilitate the installation of the guide assembly 3 between the bottom tower and the top tower. After the guide assembly 3 is installed, it is lifted by the lifting equipment to fix the bottom tower and the embedded foundation.

[0041] Furthermore, one end of each of the two positioning tubes 331 is provided with a notch 3311 close to the fixing seat 351 , and the top of the second positioning ring 32 is provided with a compensation notch 321 located between the two fixing seats 351 .

[0042] In the specific implementation process, it is worth pointing out that the notch 3311 is divided into two parts. One part is arranged on the side where the two positioning tubes 331 are away from each other. The design purpose is that when the limiting rod 344 slides into the notch 343, the connecting rod 341 enters the positioning tube 331 to avoid interference between the positioning tube 331 and the limiting rod 344. The other part is arranged on the side where the two positioning tubes 331 are close to each other. The design purpose is that when the towers at both ends are fully docked, that is, the first flange 1 and the second flange 2 are docked together, the fixing seat 351 will move to the inside of the bottom tower to avoid interference between the cover plate 353 on the top of the fixing seat 351 and the bolts and the positioning tube 331. The setting of the compensation notch 321 is to reduce the strength of the second positioning ring 32 and facilitate deformation to enter the top tower for fixation.

[0043] In one practicable manner, see Figure 3 , Figure 8 and Fig. 9The recovery device 36 includes: a base frame 361, which is arranged on the side of the inner wall of the first positioning ring 31 away from the U-shaped rod 333; a wire roller 362, which is installed on the surface of the base frame 361; a servo motor 363, which is fixed to the side of the base frame 361 and installed on one end of the wire roller 362; a main steel wire 364, which is fixed to the outer wall of the wire roller 362; wherein the base frame 361 is used to fix the wire roller 362 and the servo motor 363, and the servo motor 363 controls the wire roller 362 to reel in the main steel wire 364 to pull the second positioning ring 32 close to the first positioning ring 31.

[0044] In the specific implementation process, it is worth pointing out that the base frame 361 is the installation base of the wire roller 362 and the servo motor 363, which is arranged on the first positioning ring 31 and fixed to the inner wall of the bottom tower following the first positioning ring 31. The first positioning ring 31 can be fixed to the inner wall of the bottom tower by welding or any method that meets the fixing requirements. The servo motor 363 uses a large torque motor. Of course, a reducer can be used between it and the wire roller 362 to further increase the torque. In the process of the top tower rotating and gradually becoming coaxial with the bottom tower, the servo motor 363 drives the wire roller 362 to rotate, reeling in the main steel wire 364, and assisting external lifting equipment to dock the top tower and the bottom tower. The specific model of the servo motor 363 is not limited, and it only needs to meet the use requirements.

[0045] Furthermore, a hanging ring 3641 is fixedly connected to the end of the main steel wire 364 , a plurality of auxiliary steel wires 3642 are installed on the outer wall of the hanging ring 3641 , a hook 3643 is fixedly connected to the end of the auxiliary steel wire 3642 , and a through nail 3644 is installed on the outer wall of the hook 3643 through a through hole 3645 .

[0046] In the specific implementation process, it is worth pointing out that the design of the hanging ring 3641 is convenient for installing multiple auxiliary steel wires 3642 at the end of the main steel wire 364. Multiple through nails 3644 can be connected through the hook 3643 at the end of the auxiliary steel wire 3642. The through nail 3644 needs to pass through the bolt socket on the second flange 2 in advance to connect the main steel wire 364 and the second flange 2, and disperse the force at multiple points. After the bottom tower and the top tower are connected, the hook 3643 and the through hole 3645 are disassembled in turn, and the through nail 3644 is removed and replaced with bolts and nuts to fix the first flange 1 and the second flange 2.

[0047] A reserved insertion hole 3611 is provided on the surface of the base frame 361 , a screw rod 311 corresponding to the reserved insertion hole 3611 is fixedly connected to the top of the inner wall of the first positioning ring 31 , and a fixing nut 312 is threadedly connected to the outer wall of the screw rod 311 .

[0048] In the specific implementation process, it is worth pointing out that the reserved insertion hole 3611 matches the screw rod 311, and the fixing nut 312 can fix the base frame 361 on the inner wall of the first positioning ring 31, and is easy to disassemble.

[0049] It is understandable that in the above embodiment, a two-section tower is used as an example for explanation. A wind turbine tower structure with more than two sections can be connected through multiple sets of guide components 3, hoisted together, and unfolded in sequence to achieve precise assembly and docking with each other.

[0050] The present invention also provides a wind turbine tower, comprising a basic tower 5, a heightened tower 4 and an auxiliary positioning device for wind turbine tower assembly, wherein the ends of the basic tower 5 and the heightened tower 4 close to each other are respectively fixed to the end faces of the first flange 1 and the second flange 2, a first positioning ring 31 is fixed to the inner wall of the basic tower 5 on one side close to the heightened tower 4, a reserved card slot 322 is provided on the outer wall of the second positioning ring 32, and a reserved card block 41 corresponding to the reserved card slot 322 is provided on the inner wall of the heightened tower 4.

[0051] In the specific implementation process, it is worth pointing out that the basic tower 5 and the heightened tower 4 in this embodiment are respectively the bottom tower and the top tower in the previous embodiments. Although the names are different, they are essentially the same and will not be repeated. The reserved card slot 322 and the reserved card block 41 are for facilitating the fixation of the second positioning ring 32 and the heightened tower 4. The first positioning ring 31 can be welded to the inner wall of the basic tower 5 in advance or on-site.

[0052] Furthermore, a connecting ring 6 is sleeved on a side of the outer wall of the basic tower 5 away from the heightened tower 4 , and a receiving seat 7 is fixedly connected to the outer wall of the connecting ring 6 , and a fixing belt 8 is provided on the receiving seat 7 .

[0053] In the specific implementation process, it is worth pointing out that the connecting ring 6 can be welded or fixed by screws to the outer wall of the basic tower 5, and the end close to the ground. The purpose is that when the heightened tower 4 and the basic tower 5 are placed parallel to each other, the two are limited by the socket 7 and the connecting ring 6, and fixed by the fixing belt 8. The fixing belt 8 can be tied to the outer wall of the heightened tower 4 by any means such as snaps and buckles, so as to fix the heightened tower 4 and the socket 7.

[0054] It can be understood that the bolt connection holes of the first flange 1 and the second flange 2 in this embodiment are both arranged on the outer wall of the tower. In order to improve the aesthetics and convenience of later maintenance, the bolt connection holes of the first flange 1 and the second flange 2 can be arranged on the inner side of the tower, which will not affect the use of the wind turbine tower assembly auxiliary positioning device. Of course, adaptive adjustments can be made according to actual needs and dimensions, but various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0056] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind power tower assembly auxiliary positioning device, comprising a first flange, characterized in that: A second flange is disposed on one side of the first flange, and a guide assembly is disposed between the first flange and the second flange, wherein the guide assembly comprises: a first positioning ring, disposed close to the first flange; a second positioning ring, disposed close to the second flange; A guide device, mounted on the first positioning ring; A second-stage guide device, arranged on one side of the first-stage guide device close to the second positioning ring; A connecting device, installed between the two-stage guide device and the second positioning ring; A recovery device is arranged on a side of the first positioning ring away from a section of the guide device and is detachably connected to the second flange; Among them, the first positioning ring and the second positioning ring are connected to the two sections of the tower respectively, and the first flange and the second flange are precisely docked through the first guide device and the second guide device. The connecting device connects the second positioning ring and the second guide device, and the recovery device assists the first flange to dock with the second flange.

2. The wind turbine tower assembly auxiliary positioning device according to claim 1, characterized in that: The guide device comprises: Two positioning tubes are provided and are respectively fixed to two sides of the bottom of the inner wall of the first positioning ring; A connecting piece, fixedly connected between the two positioning tubes; A U-shaped rod, with two sides respectively plugged into the inner walls of the two positioning tubes; A first elastic member, one end of which is fixedly connected to the surface of the connecting member, and the other end of which is fixedly connected to the surface of the U-shaped rod; The two positioning tubes are reinforced by a connecting piece and limit the U-shaped rod, and have a tendency to move away from the second positioning ring under the action of the first elastic piece.

3. The wind turbine tower assembly auxiliary positioning device according to claim 2, characterized in that: The two-stage guide device comprises: Two connecting rods are provided and are rotatably connected to the two ends of the U-shaped rod respectively; A circular hole is formed on a side of the surface of the connecting rod away from the U-shaped rod; A notch is formed on the surface of the connecting rod and is connected to the circular hole; A limiting rod, which simultaneously passes through the circular holes on the surfaces of the two connecting rods; Two second elastic members are provided, one end of which is fixedly connected to a side of the inner wall of the notch away from the circular hole; Two limiting grooves are provided, which are respectively provided on the outer wall of the limiting rod and are respectively movably connected to the ends of the two second elastic members; The connecting rod has a tendency to approach the second positioning ring through the cooperation of the second elastic member and the limiting rod, and the limiting groove realizes the connection between the limiting rod and the second elastic member, and realizes the rotational connection between the limiting rod and the second elastic member.

4. The wind turbine tower assembly auxiliary positioning device according to claim 3, characterized in that: The connecting device comprises: Two fixing seats are provided and are respectively fixed to the top of the second positioning ring; A reserved groove is provided on one side of the two fixing seats close to each other and is matched with the bottom of the end of the outer wall of the limiting rod; A cover plate, fixed to the top of the fixing seat by bolts; A reserved upper groove is provided at the bottom of the cover plate and fits with the top of the end of the outer wall of the limiting rod; A mating surface, disposed between the fixing seat and the cover plate; Among them, the fixing seat and the cover plate cooperate to fix the limiting rod and the second positioning ring, the reserved groove and the reserved upper groove are conducive to the limiting rod being tightly installed on the fixing seat, and the fitting surface improves the assembly accuracy of the fixing seat and the cover plate.

5. The wind turbine tower assembly auxiliary positioning device according to claim 4, characterized in that: One end of the two positioning tubes is provided with a notch close to the fixing seat, and the top of the second positioning ring is provided with a compensating notch located between the two fixing seats.

6. The wind turbine tower assembly auxiliary positioning device according to claim 5, characterized in that: The recovery device comprises: A base frame is arranged on a side of the inner wall of the first positioning ring away from the U-shaped rod; A wire roller is mounted on the surface of the base frame; A servo motor is fixed to the side of the base frame and installed at one end of the wire roller; A main steel wire is fixedly connected to the outer wall of the wire roller; The base frame is used to fix the wire roller and the servo motor, and the servo motor controls the wire roller to reel in the main steel wire and pull the second positioning ring close to the first positioning ring.

7. The wind turbine tower assembly auxiliary positioning device according to claim 6, characterized in that: The end of the main steel wire is fixedly connected with a hanging ring, the outer wall of the hanging ring is equipped with a plurality of auxiliary steel wires, the end of the auxiliary steel wire is fixedly connected with a hook, and the outer wall of the hook is equipped with a through-nail through a through hole.

8. The wind turbine tower assembly auxiliary positioning device according to claim 1, characterized in that: A reserved insertion hole is provided on the surface of the base frame, a screw corresponding to the reserved insertion hole is fixedly connected to the top of the inner wall of the first positioning ring, and a fixing nut is threadedly connected to the outer wall of the screw.

9. A wind power tower, characterized in that: It comprises a basic tower, a heightened tower and the auxiliary positioning device for wind turbine tower assembly as claimed in any one of claims 1 to 8, wherein the ends of the basic tower and the heightened tower close to each other are respectively fixed to the end faces of the first flange and the second flange, the first positioning ring is fixed to the inner wall of the basic tower on a side close to the heightened tower, the outer wall of the second positioning ring is provided with a reserved card slot, and the inner wall of the heightened tower is provided with a reserved card block corresponding to the reserved card slot.

10. A wind power tower according to claim 9, characterized in that: A connecting ring is sleeved on a side of the outer wall of the basic tower away from the heightened tower, and a receiving seat is fixedly connected to the outer wall of the connecting ring, and a fixing belt is arranged on the receiving seat.

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