Accessory connecting structure, wind generating set tower, mounting tool and mounting method

Abstract

The invention provides an accessory connecting structure, a wind generating set tower, a mounting tool and a mounting method.The accessory connecting structure comprises a bonding body part and a glue layer thickness limiting part, the bonding body part is provided with a bonding face and a non-bonding face which are opposite to each other in the thickness direction, and the glue layer thickness limiting part is arranged on the bonding face; the adhesive body part is provided with a thickness direction and protrudes relative to the adhesive surface in the thickness direction, and the accessory connecting part is connected to the adhesive body part. According to the accessory connecting structure, the wind generating set tower, the mounting tool and the mounting method, the problems of strength, process, cost and the like caused by a mounting mode of welding accessories can be avoided.

Description

Technical Field

[0001] The invention relates to the field of wind energy, and in particular to an accessory connection structure, a wind turbine generator tower, an installation tool and an installation method. Background Art

[0002] A wind turbine is a clean energy device that converts wind energy into electrical energy. The basic structure of a wind turbine includes a wind turbine tower, and various accessories (such as ladders, elevator beams, cable clamps, etc.) can be installed inside the tower.

[0003] As for the installation method of accessories in the tower, welding is currently the most commonly used method for installation. However, the welding process also requires operations such as marking and non-destructive testing, which is time-consuming and laborious. At the same time, welding will cause quality defects to the cylinder, such as the introduction of welding cracks, stress concentration of welds, and increase in the length of cracks in the tower. In addition, welding will also cause the fatigue resistance of the cylinder itself to decrease. In order to avoid the above problems, it is usually necessary to thicken the tower, but this will also lead to an increase in the weight and cost of the tower. Summary of the invention

[0004] One of the main purposes of the present invention is to provide an accessory connection structure, a wind turbine tower, an installation tool and an installation method to overcome the related problems caused by the installation method of welding accessories.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] According to one aspect of the present invention, there is provided an accessory connection structure, characterized in that the accessory connection structure comprises: a bonding main body portion having a bonding surface and a non-bonding surface opposite to each other in the thickness direction, a glue layer thickness limiting portion arranged on the bonding surface and protruding relative to the bonding surface in the thickness direction, and an accessory connection portion connected to the bonding main body portion.

[0007] The adhesive layer thickness limiting portion may be a fixed protrusion, which is an integral structure with the bonding main body.

[0008] The adhesive layer thickness limiting portion may be a movable magnetic sheet, which is combined with the bonding body portion through magnetic force.

[0009] The thickness of the adhesive layer thickness limiting portion may be 0.5 mm-1 mm.

[0010] The adhesive layer thickness limiting portion may be one and arranged at the center of the bonding surface, or the adhesive layer thickness limiting portion may be multiple and arranged on the bonding surface in a spaced distribution manner.

[0011] The roughness of the bonding surface may be greater than the roughness of the non-bonding surface.

[0012] The bonding main body may include a first connection portion located on the non-bonding surface, the first connection portion having a first connection hole, the accessory connection portion may include a second connection portion, the second connection portion having a second connection hole, and the first connection portion and the second connection portion may be rotatably connected to each other via a rotatable connection member passing through the first connection hole and the second connection hole.

[0013] The bonding body portion may have a bent shape and include a body and the first connection portion forming a predetermined angle with respect to the body.

[0014] The bonding body may include a plurality of first connection parts having a plate shape and disposed to be spaced apart from each other by a predetermined distance, and the second connection part may have a cylindrical shape or a plate shape and may be disposed adjacent to the first connection part.

[0015] The accessory connection portion may further include a third connection portion. The third connection portion may be in a plate shape, fixedly connected to one side of the second connection portion, and extending away from the bonding main body portion.

[0016] According to one aspect of the present invention, a wind turbine tower is provided, comprising: a tower having a substrate bonding surface located on an inner wall of the tower; and a plurality of accessory connection structures as described above, bonded to the substrate bonding surface by structural adhesive.

[0017] The structural adhesive may include a first filling part and a second filling part. The first filling part may be located between the substrate bonding surface of the tower inner wall and the bonding surface of the bonding body part. The second filling part may be surrounded by the edge corner of the bonding body part and have an inclined surface extending from the non-bonding surface to the tower inner wall.

[0018] The tower may include a first barrel section, a second barrel section and a third barrel section, the thickness of the first barrel section is smaller than the thickness of the second barrel section and the thickness of the third barrel section, and the first barrel section is located between the second barrel section and the third barrel section, the accessory connection structure is coupled to the inner wall of the first barrel section, the second barrel section is provided with an upper fixed end structure, the third barrel section is provided with a lower fixed end structure, and the upper fixed end structure and the lower fixed end structure are respectively coupled to the inner walls of the second barrel section and the third barrel section by welding.

[0019] The wind turbine tower may further include a rope, which is fixed to an upper platform inside the tower, and a first lock is provided on the upper fixed end structure and the accessory connection structure, the first lock includes a rope loop for passing the rope, and a second lock is provided on the lower fixed end structure, the second lock is used to fix the end of the rope, the rope extends vertically downward and is connected in series with the upper fixed end structure, the accessory connection structure and the lower fixed end structure in sequence.

[0020] The wind turbine tower may further include a ladder, including a pair of vertical poles and a plurality of tubular cross bars connected between the vertical poles, the two ends of the tubular cross bars having openings, and a connecting rod on the end of the accessory connecting portion of the accessory connecting structure, the connecting rod passing through the tubular cross bars of the ladder via the opening.

[0021] According to one aspect of the present invention, there is provided an installation tool, which is used for installing a wind turbine tower as described above, and the installation tool comprises a tool body and a reinforcement portion, the tool body comprises a first combining portion and a second combining portion, the first combining portion is used to be combined to the inner wall of the tower and comprises a magnetic attraction portion, the second combining portion is used to be combined to the accessory connection structure, wherein the reinforcement portion is arranged on the second combining portion, and is used to apply reinforcement pressure to the accessory connection structure.

[0022] The first combining portion is located at the end of the tooling body and is plate-shaped. The tooling body is U-shaped or L-shaped and also includes a connecting support portion, which is plate-shaped and perpendicular to the first combining portion. The second combining portion and the first combining portion are parallel to each other and are connected to each other through the connecting support portion.

[0023] The second combining portion includes a first through hole, the reinforcing portion passes through the first through hole of the second combining portion, extends in a direction perpendicular to the second combining portion and is capable of adjusting the length of the end of the reinforcing portion extending therefrom, and the end of the reinforcing portion abuts against the accessory connecting structure.

[0024] The reinforcing portion may include at least one of a bolt, a threaded rod and a screw, so as to be rotatably cooperated with the first through hole of the second combining portion.

[0025] According to one aspect of the present invention, there is provided an installation method, which is used for installing a wind turbine tower as described above, and the installation method comprises: grinding the substrate bonding surface and the bonding surface of the bonding body of the inner wall of the tower, applying structural adhesive on at least one of the substrate bonding surface and the bonding surface of the bonding body, and bonding the bonding body to the inner wall of the tower.

[0026] After the bonding body is bonded to the tower inner wall, the installation tool can be coupled to the tower inner wall, and the end position of the reinforcement portion of the installation tool can be adjusted so that the end abuts against the accessory connection structure and applies pressure to the accessory connection structure.

[0027] After the bonding body is bonded to the inner wall of the tower, the structural adhesive may be sloped.

[0028] According to the accessory connection structure, wind turbine tower, installation tool and installation method of the present invention, the installation of accessories in the tower can be easily achieved and the performance of the bonding structure can be ensured.

[0029] According to the accessory connection structure of the present invention, the processing technology of the connection structure can be simplified and the cost can be reduced.

[0030] The accessory connection structure, wind turbine tower, installation tooling and installation method according to the present invention can avoid quality defects caused by welding installation methods and significantly improve the overall fatigue level.

[0031] According to the accessory connection structure, wind turbine tower, installation tool and installation method of the present invention, the reliability and stability of accessory installation and fixation can be improved.

[0032] The accessory connection structure, wind turbine generator tower, installation tool and installation method according to the present invention can improve the flexibility of accessory installation.

[0033] The accessory connection structure, installation tooling and installation method according to the present invention can be applied to towers of different specifications and installation scenarios, can easily adjust the fixed position, angle and method, and have strong versatility.

[0034] According to the wind turbine tower of the present invention, the fatigue forms of the tower can be subdivided, and the overall fatigue strength can be improved while reducing the weight of the tower. In particular, the weight reduction effect is more obvious when fatigue is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or other objects and advantages of the present invention will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0036] Figure 1 is a schematic cross-sectional view of a tower according to an exemplary embodiment of the present invention.

[0037] Figure 2 It is shown Figure 1 Schematic diagram of the internal structure of the tower.

[0038] Figure 3 yes Figure 2 Enlarged view of part A.

[0039] Figure 4 yes Figure 2 Enlarged view of part B.

[0040] Figure 5 yes Figure 2 Enlarged view of part C.

[0041] Figure 6 yes Figure 2 Enlarged view of part D.

[0042] Figure 7 is a perspective view of an accessory connecting structure according to a first exemplary embodiment of the present invention.

[0043] Figure 8 1 is a plan view showing a state where an accessory connection structure is bonded to a tower according to a first exemplary embodiment of the present invention.

[0044] Fig. 9 yes Figure 8 Side view in the direction of F.

[0045] Fig.10 is a perspective view of an adhesive body according to a first exemplary embodiment of the present invention.

[0046] Fig.11 is a partially enlarged schematic cross-sectional view of a bonding structure including a structural adhesive according to an exemplary embodiment of the present invention.

[0047] Fig.12 is a perspective view of an adhesive body according to a second exemplary embodiment of the present invention.

[0048] Fig.13 is a perspective view of an accessory connecting structure according to a third exemplary embodiment of the present invention.

[0049] Fig.14 and Fig.15 3 are perspective views of an adhesive main body portion and an accessory connecting portion according to a third exemplary embodiment of the present invention, respectively.

[0050] Fig.16 is a perspective view of an accessory connecting structure according to a fourth exemplary embodiment of the present invention.

[0051] Fig.17 is a perspective view of an accessory connecting portion according to a fourth exemplary embodiment of the present invention.

[0052] Fig.18 is a perspective view of an accessory connecting structure (cable bracket) according to a fifth exemplary embodiment of the present invention.

[0053] Fig.19 A perspective view of a mounting tool according to an exemplary embodiment of the present invention.

[0054] Description of reference numerals:

[0055] 50-tower, 50a-inner wall of tower, 55-substrate bonding surface, 51-first cylinder section, 52-second cylinder section, 53-third cylinder section, 54-upper fixing flange, 56-lower fixing flange, 61-upper fixed end structure, 62-lower fixed end structure, 70-rope, 75-first locking buckle, 76-second locking buckle, 90-ladder.

[0056] 100- accessory connection structure, 10- bonding main body, 11- bonding surface, 12- non-bonding surface, 13- first connection part, 14- first connection hole, 20- adhesive layer thickness limiting part, 30- accessory connection part, 31- second connection part, 32- second connection hole, 33- third connection part, 35- connecting rod, 80- rotating connection part, 40- structural adhesive, 41- first filling part, 42- second filling part, 42a- inclined surface.

[0057] 200 - installation tool, 210 - tool body, 211 - first connecting part, 212 - second connecting part, 213 - magnetic attraction part, 214 - connection support part, 215 - first through hole, 220 - reinforcement part. DETAILED DESCRIPTION

[0058] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that embodiments of the present invention are limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0059] For the sake of convenience, directional terms such as up, down, inside and outside are used to describe the construction and related operating methods of cylindrical structures such as towers. Up and down refer to the top and bottom of the tower in the axial direction (height direction), and inside and outside refer to the direction toward the central axis and away from the central axis of the tower in the radial direction.

[0060] In addition, directional terms such as length direction, width direction, height direction, thickness direction, radial direction or axial direction may be used to describe the structure of the device and the related operation method. However, the device is not limited to this, and the device can be turned front and back, turned upside down or positioned at other angles.

[0061] The tower of a wind turbine generator set is usually equipped with internal accessories such as ladders. In the prior art, the accessories inside the tower are usually installed and fixed by welding. However, the welding process is difficult to operate and is prone to quality problems, especially problems related to the overall fatigue performance of the tower.

[0062] For tower structures assembled by welding in the prior art, the fatigue level of the tower body can generally reach DC80, and can reach up to DC90 through some methods of improving weld performance.

[0063] However, when the fatigue level of the tower body weld is increased to a higher level (such as DC112) through grinding, the inability to increase the fatigue level of the accessory welding structure becomes the main constraint on improving the overall fatigue strength of the tower.

[0064] In order to solve the above problems, an accessory connection structure, a wind turbine generator tower, an installation tool and an installation method of the present invention are provided.

[0065] A tower and an accessory connection structure according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0066] Reference Figures 1 to 6 The tower according to the embodiment of the present invention may include a tower 50 and an accessory connection structure 100 disposed in the tower 50 .

[0067] Accessories such as a ladder 90 may extend from the bottom of the tower 50 to the top of the tower 50 , and may be connected and fixed to the tower 50 via an accessory connection structure 100 .

[0068] As for the ladder 90 , the ladder 90 may include a pair of vertical poles and a plurality of tubular cross bars connected between the vertical poles, and both ends of the tubular cross bars have openings.

[0069] The connecting rod 35 (see FIG. Figure 7 ), the connecting rod 35 can pass through the tubular cross bar that passes through the ladder 90 and extend from the openings at both ends of the tubular cross bar to be fixedly connected to the end of the accessory connecting portion 30.

[0070] The accessory connection structure 100 may also include a bonding main body 10, and may be bonded to a substrate bonding surface 55 of an inner wall 50a of the tower via a structural adhesive 40, thereby making it easy to install accessories within the tower 50 and avoiding problems such as welding damage, while significantly reducing the thickness and weight of the tower 50.

[0071] In terms of the structure and composition of the tower 50, the tower 50 may include a plurality of cylinder sections 51, 52 and 53 connected in sequence. The uppermost and lowermost portions of the tower 50 may be provided with an upper fixing flange 54 and a lower fixing flange 56, respectively, for fixing the entire tower.

[0072] Specifically, the tower 50 may include a first cylinder segment 51 and a second cylinder segment 52 located above the first cylinder segment 51, and may also include a third cylinder segment 53 located below the first cylinder segment 51. That is, the first cylinder segment 51 may be disposed between the second cylinder segment 52 and the third cylinder segment 53. The number of the first cylinder segment 51 may be multiple.

[0073] According to an embodiment of the present invention, the accessory connection structure 100 can be bonded to the first cylinder section 51 by bonding. In this case, for the first cylinder section 51, there are no welding points of the welding structure. Therefore, when designing the cylinder section size and fatigue strength, it is no longer necessary to consider the quality defects and fatigue performance problems caused by welding. Therefore, the first cylinder section 51 can have a reduced thickness, thereby achieving a weight reduction effect.

[0074] In addition, an upper fixed end structure 61 may be provided on the second cylinder segment 52 at the uppermost end, and the upper fixed end structure 61 may be connected to the inner wall of the second cylinder segment 52 by welding. The upper fixed end structure 61 of the second cylinder segment 52 may be connected to the lower fixed end structure 62 of the third cylinder segment 53 (see Figure 3 ) have the same structure and the same installation method.

[0075] In this case, even if the uppermost second barrel section 52 can be designed according to a low fatigue level (for example, having a thickened steel plate), the multiple first barrel sections 51 therebelow can be designed according to a high fatigue level so as to have a reduced thickness and weight, for example, so that the thickness of the first barrel section 51 can be smaller than the thickness of the second barrel section 52.

[0076] Therefore, the wind turbine generator tower according to the embodiment of the present invention can significantly reduce the overall weight and improve the overall fatigue strength.

[0077] The wind turbine tower may further include a rope 70 , and the upper fixed end structure 61 disposed on the second cylinder segment 52 and the accessory connection structure 100 disposed on the first cylinder segment 51 may be connected in series in the vertical direction via the rope 70 (eg, a steel wire rope or a flat steel).

[0078] Specifically, a first lock buckle 75 may be provided on the upper fixed end structure 61 on the second barrel section 52, and a first lock buckle 75 may be provided on the accessory connection structure 100 for connecting and fixing the rope 70 in series. The uppermost end of the rope 70 may be connected to the upper platform on the second barrel section 52.

[0079] Specifically, the upper fixed end structure 61 and the accessory connection structure 100 may be provided with a first lock buckle 75 , and the first lock buckle 75 may include a rope loop for the rope 70 to pass through.

[0080] As an example, the first locking buckle 75 may include a first locking plate, a cable sleeve, and a second locking plate. The cable sleeve may be fixed to a first end of the first locking plate, and the cable sleeve may pass through the first locking plate and include a U-shaped main body portion located on one side of the first locking plate and a fixed end located on the other side of the first locking plate. The second locking plate may overlap the second end of the first locking plate, and be connected and fixed to each other by bolts, and when the nuts of the bolts are tightened, the accessory connection portion 30 (which will be referred to later) of the accessory connection structure 100 is clamped and fixed. Figure 7 Description), and when the nut is rotated in the reverse direction, the position of the first lock buckle 75 on the accessory connecting portion 30 of the accessory connecting structure 100 can be adjusted. In addition, the first locking plate can be formed integrally by a bent plate member.

[0081] In addition, refer to Figure 3 A lower fixed end structure 62 may be provided on the third barrel section 53 at the lowermost end, and the lower fixed end structure 62 may be connected to the inner wall of the third barrel section 53 by welding, and a second locking buckle 76 may be provided on the fixed end structure 60 on the third barrel section 53 .

[0082] The second lock buckle 76 may include a first locking plate, a second locking plate, and a rope fixing member. The second locking plate may be stacked on the first locking plate and connected and fixed to each other by bolts, and when the nuts of the bolts are tightened, the accessory connecting portion 30 (which will be referred to later) of the accessory connecting structure 100 is clamped and fixed. Figure 7 ), and when the nut is rotated in the reverse direction, the position of the first lock buckle 75 on the accessory connecting portion 30 of the accessory connecting structure 100 can be adjusted. In addition, the first locking plate can be formed integrally by a bent plate.

[0083] One end of the rope fixing member of the second lock buckle 76 is connected to the first locking plate, for example, by a wide bolt, and the other end can be used to fix the end (lowermost end) of the rope 70. Therefore, the end (lowermost end) of the rope 70 can be fixed by the second lock buckle 76.

[0084] In addition, the upper end of the rope 70 may be fixed (eg, anchored, etc.) to the upper platform of the tower 50 .

[0085] Therefore, according to the embodiment of the present invention, the rope 70 can remain extended in the vertical direction, and through the above-mentioned buckles 75 and 76, the upper fixed end structure 61, the accessory connection structure 100 and the lower fixed end structure 62 are connected in series in sequence.

[0086] In other words, the upper fixed end structure 61 arranged on the second cylinder segment 52, the accessory connection structure 100 arranged on the first cylinder segment 51 and the lower fixed end structure 62 arranged on the third cylinder segment 53 are connected in series in the vertical direction through the rope 70 (such as wire rope or flat steel).

[0087] In this case, the third cylinder section 53 at the lowermost end may be designed according to a low fatigue level (eg, with a thickened steel plate) to ensure overall fatigue strength.

[0088] That is, the thicknesses of the cylinder sections 52 and 53 located at the uppermost and lowermost ends may be greater than the thickness of the first cylinder section 51 located in the middle.

[0089] In addition, the series connection of the ropes 70 in the vertical direction can provide alignment stability in the vertical direction. Therefore, it can not only assist the positioning of the accessory connection structure 100 during the accessory installation process, but also effectively prevent the accessory connection structure 100 from swinging in the horizontal direction, prevent the accessory connection structure 100 from being deformed or separated from the inner wall of the tower due to the swing, and ensure the reliability of the accessory connection.

[0090] That is, in the embodiment of the present invention, through the cooperation of the accessory connection structure 100 and the rope 70, the accessories in the low-positioned tower can be stabilized in the horizontal direction to prevent unexpected deformation or detachment. At the same time, it can also provide an alignment effect in the vertical direction to reduce the difficulty of accessory installation.

[0091] Although the drawings show an example in which only the uppermost second cylinder segment 52 and the lowermost third cylinder segment 53 have thickened thicknesses, the embodiment is not limited thereto, and the thickness of any cylinder segment may be selectively thickened (for example, by providing a thickened steel plate according to a low fatigue level design) in the intermediate cylinder segment between the uppermost second cylinder segment 52 and the lowermost third cylinder segment 53 to ensure overall fatigue strength.

[0092] The middle thickened cylinder section may be provided with a fixed end structure connected by welding, so as to improve the radial fixing force of the accessories in the tower through the fixed end structure to prevent displacement or deformation. In addition, the middle cylinder section may also be provided with a first lock buckle to be connected in series in the vertical direction through a rope 70.

[0093] According to the embodiments of the present invention, the accessory connection structure can be improved so that the thickness of at least a part of the multiple cylinder segments can be reduced while ensuring fatigue strength. In addition, the connection of accessories can be simplified, the weight of the tower can be reduced, and the manufacturing cost can be reduced. Moreover, the freedom of tower design can be improved, and the thinned cylinder segments can be adaptively set according to actual production or bidding requirements.

[0094] The accessory connection structure 100 according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0095] The following will refer to Figures 7 to 11 The composition and bonding structure of the attachment connection structure 100 that can be coupled to a thinned barrel section according to the first embodiment of the present invention are described in detail.

[0096] The accessory connection structure 100 may include: an adhesive body 10 having an adhesive surface 11 and a non-adhesive surface 12 opposite to each other in the thickness direction; and an adhesive layer thickness limiting portion 20 disposed on the adhesive surface 11 and protruding relative to the adhesive surface 11 in the thickness direction.

[0097] The bonding surface 11 may be a contact surface for coating structural adhesive and adhering to the tower inner wall 50a. As an example, the bonding surface 11 of the bonding body 10 may be rectangular to facilitate bonding operation and ensure bonding strength.

[0098] The long side of the rectangle can be set along the axial direction (vertical direction) of the tower 50, and the short side of the rectangle can be set along the circumferential direction (horizontal direction) of the tower inner wall 50a. Therefore, the bonding state between the bonding surface 11 and the tower inner wall 50a can be fully ensured. For example, the gap between the bonding surface 11 and the tower inner wall 50a can be less than or equal to 3mm. More preferably, the size of the short side of the rectangle can be controlled within a predetermined range, thereby improving the degree of bonding.

[0099] The bonding surface 11 of the bonding body 10 may have a substantially flat shape so as to be bonded to the tower inner wall 50 a of the tower 50 through the structural adhesive 40 .

[0100] Preferably, in order to ensure the bonding reliability, the bonding surface 11 of the bonding body 10 may be a rough surface with a predetermined roughness after being polished or the like. Therefore, the roughness of the bonding surface 11 may be greater than the roughness of the non-bonding surface 12 .

[0101] Accordingly, if Figure 8 and Fig. 9 As shown, the tower inner wall 50a of the tower 50 may also have a substrate bonding surface 55 for bonding. As an example, in order to ensure bonding reliability, the substrate bonding surface 55 may also be polished and have a predetermined roughness, so that the roughness of the substrate bonding surface 55 of the tower inner wall 50a is greater than the roughness of other positions.

[0102] The bonding structure of the accessory connection structure 100 is realized by bonding the bonding surface 11 of the bonding body 10 and the base bonding surface 55 of the tower inner wall 50 a to each other using the structural adhesive 40 .

[0103] like Fig.11 As shown, the structural adhesive 40 may be disposed at least between the bonding surface 11 of the bonding body 10 and the base material bonding surface 55 of the tower inner wall 50a facing each other. As an example, the structural adhesive 40 may be a high-strength structural adhesive that can withstand performance requirements such as pull-out force and shear force, thereby meeting various practical application scenarios.

[0104] Preferably, the structural adhesive 40 may include a first filling portion 41 and a second filling portion 42 to increase the bonding area and prevent the structural adhesive from being delaminated or separated.

[0105] The first filling part 41 may be interposed between the base material bonding surface 55 of the tower inner wall 50a and the bonding surface 11 of the bonding body 10 to ensure bonding strength. Controlling the thickness of the first filling part 41 is the key to controlling bonding strength. Figure 5 Describe in detail.

[0106] The second filling portion 42 may surround the edge corners of the bonding body portion 10 to further improve the bonding strength.

[0107] More preferably, the second filling portion 42 may have an inclined surface 42a, which may be connected between the non-bonding surface 12 and the tower inner wall 50a, thereby optimizing the bonding area of ​​the structural adhesive, maximizing the bonding strength, and preventing the structural adhesive from delaminating or separating. As an example, the inclination angle α of the inclined surface 42a of the second filling portion 42 may be greater than about 45 degrees, for example, 40 degrees to 50 degrees.

[0108] In order to control the reliability and consistency of the bonding strength, the accessory connection structure 100 according to the embodiment of the present invention is further provided with an adhesive layer thickness limiting portion 20 for the filling amount of the structural adhesive 40 .

[0109] Reference Figure 7 The adhesive layer thickness limiting portion 20 may be disposed on the bonding surface 11 and protrude relative to the bonding surface 11 in the thickness direction.

[0110] As an example, the adhesive layer thickness limiting portion 20 may be a fixed protrusion, which is an integral structure with the bonding body portion 10. However, the embodiment is not limited thereto.

[0111] The adhesive layer thickness limiting part 20 may include a movable magnetic sheet, which is magnetically coupled to the bonding body 10. Compared with the fixed protrusion, the adhesive layer thickness limiting part 20 using a magnetic sheet has the advantage of being easily position-adjustable, thereby being adaptable to different environments and strength requirements.

[0112] In addition, the provision of the fixed protrusion will lead to complex processing technology, high cost, and no subsequent processing of the bonding surface. In other words, according to the preferred example of the present invention, by using the magnetic sheet as the adhesive layer thickness limiter 20, the processing technology of the bonding body 10 can be simplified, the manufacturing difficulty and manufacturing cost can be reduced, and it is conducive to the corresponding processing of the bonding surface 11 during the bonding operation.

[0113] According to an embodiment of the present invention, the thickness of the adhesive layer thickness limiting portion 20 or the distance it protrudes relative to the bonding surface 11 can be controlled, so that the thickness of the first filling portion 41 of the structural adhesive 40 can be easily controlled during the bonding operation process, thereby easily controlling the filling amount of the structural adhesive 40.

[0114] As an example, the adhesive layer thickness limiting portion 20 may have a thickness of about 0.5 mm to 1 mm. Therefore, the adhesive layer thickness can be effectively controlled while ensuring the bonding strength. Specifically, during the bonding operation, by uniformly applying pressure to the bonding body portion 10 until the bonding is completed, the structural adhesive 40 can be ensured to have a predetermined minimum thickness (minimum filling amount), thereby achieving quantitative control of the adhesive layer thickness, ensuring the stability and uniformity of the bonding strength, and facilitating subsequent quality inspection and confirmation.

[0115] In addition, if Figure 5 As shown, the adhesive layer thickness limiting portion 20 can be independently arranged at the center of the bonding surface 11. Figure 5 It is shown that only one adhesive layer thickness limiting portion 20 is provided in one bonding surface 11 , but the embodiment is not limited thereto.

[0116] In order to improve the reliability of the adhesive layer thickness and facilitate the bonding operation, the accessory connection structure 100 according to the embodiment of the present invention may include a plurality of adhesive layer thickness limiting portions 20. In this case, the plurality of adhesive layer thickness limiting portions 20 may be arranged on the bonding surface 11 in a spaced distribution (preferably, evenly spaced) manner.

[0117] Reference Figure 7 and Figure 8 The bonding surface 11 of the bonding body 10 may be at least a portion of one surface of the plate-shaped bonding body 10 in the thickness direction.

[0118] Specifically, the bonding body part 10 may have a bent shape. As an example, the bonding body part 10 may be formed by bending a flat plate. Therefore, the bonding body part 10 may include a body and a bent portion bent at a predetermined angle relative to the body.

[0119] In this case, one surface of the main body 10 in the thickness direction may be used as the bonding surface 11 of the bonding body 10. Accordingly, the other surface of the main body 10 in the thickness direction may be the non-bonding surface 12.

[0120] The bent portion of the bonding body portion 10 may be located on the non-bonding surface 12 side, that is, may extend away from the bonding surface 11 .

[0121] In addition, if Fig.10 As shown, a mounting hole (first connection hole 14) may be formed on the bent portion of the bonding body 10. Therefore, the bent portion of the bonding body 10 may be used as the first connection portion 13, and the accessories in the tower 50 may be indirectly or directly connected to the first connection portion 13, so as to be mounted and fixed to the tower inner wall 50a.

[0122] Figure 2The embodiment is shown in which the accessories (ladder 90 ) in the tower 50 are mounted and fixed to the inner wall 50 a of the tower via the accessory connecting structure 100 .

[0123] exist Figure 2 In the embodiment of the present invention, the accessory connection structure 100 may further include an accessory connection portion 30 for connecting an accessory to the adhesive body portion 10 .

[0124] like Figure 6 and Figure 7 As shown, the accessory connection portion 30 may be formed by bending. As an example, the accessory connection portion 30 may be formed by bending a long strip of plate. Therefore, the accessory connection portion 30 may include a main body extending in the length direction and a bending portion located at the end of the main body.

[0125] The accessory connecting portion 30 may include a first end and a second end located at both ends of the main body thereof. The first end may be used to connect to the bent portion of the bonding main body 10 , and the second end may be used to connect to an accessory in the tower 50 .

[0126] In this case, if Figures 7 to 9 As shown, the first end of the accessory connecting portion 30 may be referred to as a second connecting portion 31 , and the second connecting portion 31 may have a second connecting hole 32 .

[0127] The first connection portion 13 and the second connection portion 31 may be connected to each other by a locking connection member, for example, by bolts passing through the first connection hole 14 and the second connection hole 32 to fix the first connection portion 13 and the second connection portion 31 together.

[0128] like Figure 8 As shown, the second connection portion 31 (first end) of the accessory connection portion 30 can be slightly bent at a predetermined angle relative to the main body of the accessory connection portion 30 to accommodate different extension angles or directions of the first connection portion (bent portion) of the bonding main body portion 10 .

[0129] The second end of the accessory connecting portion 30 may be bent one or more times at a predetermined angle relative to the main body of the accessory connecting portion 30 to accommodate the installation of accessories of different sizes or structures.

[0130] Figure 7 and Figure 8 FIG. 1 shows an example in which the second end of the accessory connecting portion 30 is bent into a C-shaped shape, so that a connecting rod 35 is provided between the second ends of the two accessory connecting portions 30, so that the ladder 90 can be fixed by the connecting rod 35 (see FIG. 1 ). Figure 2 As an example, the connecting rod 35 may pass through the ladder 90 to connect the ladder 90 in series between the two connecting parts at the second end of the accessory connecting part 30. For example, the crossbar of the ladder 90 may be a hollow tubular crossbar, and the connecting rod 35 may pass through the hollow crossbar of the ladder 90.

[0131] However, the embodiment is not limited thereto, and the shape of the accessory connecting portion 30 can also be adaptively adjusted according to the installation requirements of the accessory. In addition, a mounting hole can also be provided on the second end of the accessory connecting portion 30 for installation or positioning of the accessory or other intermediate connecting member.

[0132] In the accessory connection structure 100 of the first exemplary embodiment described above, a plurality of bonding body parts 10 and a plurality of accessory connection parts 30 may be included, and may be assembled and connected to each other by bolts.

[0133] In the above-described first exemplary embodiment, the adhesive body portion 10 may be formed in an integral bent shape, but the embodiment is not limited thereto.

[0134] like Fig.12 As shown, according to the second exemplary embodiment of the present invention, the bonding body part 10 may also include a first body and a second body connected together by welding or the like. The first body and the second body may form a predetermined angle with each other to facilitate the attachment installation connection. The first body may be used for bonding, and may include a bonding surface 11 and a non-bonding surface 12 opposite to each other. The second body may be used for connecting the attachment connection part or directly connected to the attachment, and may include a first connection part 13 and a first connection hole 14.

[0135] In the accessory connection structure 100 of the above embodiment, the first connection portion 13 of the bonding body portion 10 and the second connection portion 31 of the accessory connection portion 30 may be fixedly connected by means of bolts or the like.

[0136] However, the embodiments are not limited thereto, and in order to accommodate the installation of accessories of different structures and sizes, the accessory connection structure 100 may also be constructed to include a rotatable movable component, thereby achieving flexible adjustment of the angle or size, thereby improving the versatility and flexibility of the installation structure.

[0137] Figures 13 to 15 An accessory connection structure 100 according to a third exemplary embodiment of the present invention is shown. Figure 16 to Figure 17 An accessory connection structure 100 according to a fourth exemplary embodiment of the present invention is shown.

[0138] In the third and fourth exemplary embodiments, the accessory connecting portion 30 may be rotatably connected to the bonding body portion 10 so that the angle and orientation of the accessory connecting portion 30 may be flexibly adjusted by rotating a rotating member such as a rotating pin.

[0139] In addition, during the bonding operation, the requirements for the positioning accuracy of the bonding body 10 on the tower inner wall 50a are reduced. Even if there is a deviation in the position of the bonding body 10, the position error can be corrected by the angle or orientation of the accessory connecting portion 30, so that the accessory can be smoothly connected and installed. Moreover, the installation of the accessory can be flexibly adjusted according to the actual installation environment in the tower 50 (for example, angle changes caused by different diameters and different wall thicknesses of the tower 50).

[0140] Therefore, due to Figures 13 to 17 The accessory connection structure 100 in the embodiment has an accessory connection portion 30 with an adjustable angle or position, and thus has greater versatility.

[0141] exist Figures 13 to 17 In the embodiment of the present invention, the configuration of the bonding surface 11, the adhesive layer thickness limiting portion 20 and the configuration of the structural adhesive 40 are the same as those described above. Figures 1 to 7 and Fig.10 The description is the same as that of , so it will not be repeated.

[0142] The following will mainly describe the differences between the third and fourth exemplary embodiments with respect to the above-described first exemplary embodiment, ie, the configuration related to the rotatable connection structure, with reference to the drawings.

[0143] like Figures 13 to 15 As shown, the accessory connection structure 100 according to the third exemplary embodiment of the present invention may include an adhesive body portion 10 and an accessory connection portion 30 that are rotationally connected to each other.

[0144] The bonding main body 10 may have a bonding surface 11 for coating the structural adhesive 40, and a first connecting portion 13 may be provided on a non-bonding surface 12 of the bonding main body 10 opposite to the bonding surface 11. The first connecting portion 13 may have a first connecting hole 14 for cooperating with the accessory connecting portion 30 to achieve a rotational connection.

[0145] As an example, the rotating connection member 80 may be passed through the first connection hole 14 to achieve a rotatable connection.

[0146] The first connection portion 13 may be in a plate shape and may be at a predetermined angle (preferably 90 degrees) relative to the non-adhesive surface 12 .

[0147] The first connection portion 13 may be formed by integrally bending the end of the bonding body portion 10 to reduce the welding defect rate. However, the embodiment is not limited thereto, and the first connection portion 13 may also be attached to the non-bonding surface 1 by other methods such as welding.

[0148] In addition, in order to ensure the connection reliability of the adhesive body part 10, the adhesive body part 10 may include a plurality of first connection parts 13. In this case, the first connection parts 13 may be arranged on the non-adhesive surface to face each other and be spaced apart by a predetermined distance.

[0149] As an example, two first connection parts 13 may be formed at both end parts in the length direction of the adhesive body part 10 and disposed opposite to each other.

[0150] Therefore, an installation space may be formed between the first connection parts 13 for disposing the connection accessory connection part 30 .

[0151] Specifically, Figures 13 to 15 As shown, the attachment connection part 30 may include a second connection part 31, and the second connection part 31 may have a second connection hole 32, so as to cooperate with the bonding body part 10 to achieve rotational connection. In addition, the second connection part 31 may be located between the first connection parts 13 spaced apart from each other.

[0152] As an example, the rotatable connection member 80 may sequentially pass through the first connection portion 13 located at the bottom, the second connection portion 31 and the first connection portion 13 located at the top, thereby achieving a rotatable connection.

[0153] Specifically, the first connection portion 13 and the second connection portion 31 may be rotatably connected to each other via a rotatable connection member 80 passing through the first connection hole 14 and the second connection hole 32 .

[0154] As an example, the rotating connector 80 may include a pin, a screw or a bolt, and have locking ends at its two ends so that the first connecting portion 13 and the second connecting portion 31 are limited in the central rotation axis area of ​​the rotating connector 80 to avoid failure of the rotating connection due to axial movement of the rotating connector 80.

[0155] The rotatable connecting member 80 can be formed into a clearance fit with at least one of the first connecting portion 13 and the second connecting portion 31 , so that the mutual rotation between the two can be easily achieved.

[0156] Fig.13 FIG. 2 shows an example in which the rotating connection member 80 forms a clearance fit with the first connection portion 13 and the second connection portion 31 , thereby making the rotating connection more flexible and avoiding jamming.

[0157] Specifically, during the bonding operation, the bonding body 10 can be bonded and fixed to the tower inner wall 50a of the tower 50. However, since a rotating connection member 80 is provided between the bonding body 10 and the accessory connection part 30, the accessory connection part 30 can be rotated relative to the bonding body 10, thereby adapting to installation at different angles or positions.

[0158] As an example, the second connection portion 31 of the accessory connection portion 30 may have a cylindrical shape, and the rotating connection member 80 may pass through a central shaft hole (ie, the second connection hole 32 ) of the cylindrical second connection portion 31 .

[0159] However, the embodiment is not limited thereto, and as another example, the second connection portion 31 may also be plate-shaped and disposed adjacent to and parallel to the first connection portion 13. In addition, a spacer may be disposed between the first connection portion 13 and the second connection portion 31 to reduce contact friction between the first connection portion 13 and the second connection portion 31 that rotate relative to each other.

[0160] although Fig.13 FIG. 4 shows a configuration in which the second connection portion 31 of the accessory connection portion 30 and the matching first connection portion 13 are close to each other, but the embodiment is not limited thereto.

[0161] As another example, the second connection portion 31 may be set to be spaced a predetermined distance from the first connection portion 13 so that the second connection portion 31 may have a predetermined movable space along the axial direction of the rotating connection member 80 , thereby improving the position adjustment flexibility of the accessory connection portion 30 .

[0162] In addition, the accessory connecting portion 30 may further include a third connecting portion 33 for connecting an accessory.

[0163] The third connection portion 33 may be in a plate shape and fixedly connected to the second connection portion 31 so as to rotate along with the rotation of the second connection portion 31 .

[0164] As an example, the third connection portion 33 may be disposed at one side of the second connection portion 31 , and may be disposed to extend from the second connection portion 31 toward an axially outward direction.

[0165] Fig.13 , the third connection portion 33 is arranged perpendicular to the first connection portion 13, but the embodiment is not limited thereto, and the third connection portion 33 may be arranged at other angles. For example, the third connection portion 33 may be arranged parallel to the first connection portion 13 and perpendicular to the second connection portion 31.

[0166] In addition, a mounting hole for direct or simple connection with an accessory may be provided in the third connecting portion 33 .

[0167] Fig.16 and Fig.17 The accessory connection structure 100 according to the fourth embodiment of the present invention is shown. Fig.13 The bonding body 10 in the third exemplary embodiment is the same as that in the third exemplary embodiment, and the difference is only in the structure of the accessory connecting portion 30 and the installation method of the accessory connecting portion 30. Therefore, the description about Fig.16The detailed description of the bonding main body 10 is given in detail, and the structure and installation method of the accessory connecting part 30 are described in detail.

[0168] like Fig.16 and Fig.17 As shown, the accessory connecting portion 30 of the accessory connecting structure 100 according to the fourth exemplary embodiment of the present invention may include a second connecting portion 31 and a third connecting portion 33 .

[0169] The second connection portion 31 and the third connection portion 33 may be formed integrally with each other. Specifically, the accessory connection portion 30 may have a bent shape, for example, formed by bending a plate. The second connection portion 31 may be located at both ends of the third connection portion 33, and may be bent at a predetermined angle (for example, 90 degrees) relative to the third connection portion 33.

[0170] In this case, the accessory connecting portion 30 as a whole may have a C-shaped shape. The second connecting portion 31 of the accessory connecting portion 30 may be located at both ends of the accessory connecting portion 30 and have mounting holes (corresponding to the second connecting holes).

[0171] The second connection portion 31 of the accessory connection portion 30 may be disposed opposite to and adjacent to the first connection portion 13 of the bonding body portion 10. Preferably, the second connection portion 31 may be parallel to the first connection portion 13.

[0172] The rotating connection member 80 can pass through the first connection portion 13 and the second connection portion 31 , thereby realizing the rotational connection between the two. Fig. 9 The rotating connecting member 80 in the embodiment of Figure 8 The structure of the rotating connection member 80 in the embodiment is the same, and the only difference is the length. Therefore, the detailed description of the rotating connection part will be omitted.

[0173] The second connection hole of the second connection portion 31 may be arranged to correspond to the first connection hole 14 of the first connection portion 13 , so that the rotating connector 80 may pass through the two connection holes to connect the two connection portions to each other.

[0174] The accessory connection portion 30 according to the present embodiment may include a plurality of (eg, two) second connection portions 31 , and each second connection portion 31 may be connected to a corresponding first connection portion 13 .

[0175] The third connection portion 33 may be disposed between the second connection portions 31 adjacent to each other and fixedly connected to the second connection portions 31 , and thus the third connection portion 33 may rotate along with the rotation of the second connection portion 31 .

[0176] The third connection portion 33 may be plate-shaped and may be provided with a mounting hole for direct or indirect connection to a relevant vicinity.

[0177] In addition, the third connection portion 33 may be perpendicular to the second connection portion 31 , and may be perpendicular to the first connection portion 13 .

[0178] As an example, the third connection portion 33 may be provided at one side of the second connection portion 31 , and may be provided to extend from the second connection portion 31 toward a direction away from the rotation axis (the rotation axis of the second connection portion 31 ). Figures 13 to 17 The description of other configurations and bonding-related descriptions of the third exemplary embodiment and the fourth exemplary embodiment may be the same as the above-mentioned descriptions about the first exemplary embodiment or the second exemplary embodiment, and therefore, repeated descriptions are omitted.

[0179] In the accessory connection structure 100 of the above-mentioned embodiment, a plurality of accessory connection parts 30 may be included, and the accessory connection part 30 and the adhesive body part 10 may be assembled and connected to each other by bolts.

[0180] However, the embodiment is not limited thereto. The accessory connection portion 30 of the accessory connection structure 100 according to the embodiment of the present invention may also be connected to the bonding body portion 10 by integral molding or welding.

[0181] For example, Fig.18 As shown, according to the fifth exemplary embodiment of the present invention, the accessory connection structure 100 may include an accessory connection portion 30 and an adhesive body portion 10 connected to both ends of the accessory connection portion 30 by welding, respectively.

[0182] The bonding body 10 according to the present embodiment may be in the shape of a flat plate, and one surface of the bonding body 10 in the thickness direction may be used as the bonding surface 11 , and the accessory connection portion 30 may be welded to the other surface.

[0183] However, the embodiment is not limited thereto, and the bonding body portion 10 may also have a bent shape similar to the first exemplary embodiment described above.

[0184] The accessory connecting portion 30 according to the present embodiment may be C-shaped, and two ends of the accessory connecting portion 30 may be respectively connected to different adhesive main bodies 10 .

[0185] For example, the two ends of the accessory connecting portion 30 may be respectively connected to the two bonding main body portions 10 by welding or the like.

[0186] In addition, as an example, the C-shaped accessory connecting portion 30 may have an integrally bent shape, for example, the accessory connecting portion 30 may be obtained by bending a plate or a rod.

[0187] In this case, if Fig.18 As shown, the accessory connection structure 100 may have a relatively low height and, therefore, may be used as a cable tray.

[0188] As another example, although not shown in the drawings, in the case where the accessory connecting portion 30 is obtained by bending a plate member, the bonding surface may be obtained by further bending both ends thereof, that is, the bonding body portion 10 may be formed integrally with the accessory connecting portion 30. Therefore, the manufacturing process of the accessory connecting structure 100 may be greatly simplified.

[0189] The accessory connection structure according to the above embodiment of the present invention has the advantages of simple structure and improved fatigue strength. In addition, it also has the effect of simplifying the installation process and ensuring the installation reliability.

[0190] The following describes in detail the installation method of the accessory connection structure according to the embodiment of the present invention and the corresponding installation tool.

[0191] The installation method according to an exemplary embodiment of the present invention can be used for the installation of a wind turbine tower, which may include the above-mentioned accessory connection structure, and the installation and positioning of accessories (such as ladder 90) in the tower 50 can be achieved through the above-mentioned accessory connection structure.

[0192] The installation method according to the exemplary embodiment of the present invention may include the following steps: processing the surface to be bonded (step S1 ), applying structural adhesive (step S2 ), and bonding and positioning (step S3 ).

[0193] As for step S1 , it may include a step of grinding (eg, sanding) the base material bonding surface 55 of the tower inner wall 50 a and the bonding surface 11 of the bonding body 10 .

[0194] In addition, the step of cleaning the substrate bonding surface 55 and the bonding surface 11 may also be included. For example, cleaning may be performed before grinding to ensure the grinding effect. In addition, cleaning may be performed after grinding to ensure the cleanliness of the bonding surface, thereby ensuring the coating effect of the structural adhesive and the subsequent bonding effect.

[0195] As for step S2 , it may include the step of coating the structural adhesive 40 on at least one of the substrate bonding surface 55 and the bonding surface 11 .

[0196] In addition, when the adhesive layer thickness limiting part 20 includes a magnetic sheet, a step of positioning the magnetic sheet may be further included. As described above, the magnetic sheet may be disposed at the center of the bonding surface 11 or disposed in the bonding surface 11 in a uniformly distributed form.

[0197] In addition, one or more magnetic sheets may be disposed on the substrate bonding surface 55 , which may also be used to limit the thickness of the adhesive layer.

[0198] As for step S3 , it may include the step of bonding the bonding body 10 to the inner wall 50 a of the tower.

[0199] Specifically, pressure may be applied to the bonding body 10 so that the bonding body 10 is evenly pressurized until the distance between the bonding surface 11 of the bonding body 10 and the base bonding surface 55 of the tower 50 reaches a predetermined minimum limit distance.

[0200] Through the above-mentioned pressurization operation, the structural adhesive 40 between the bonding surface 11 of the bonding body 10 and the substrate bonding surface 55 of the tower 50 can be fully and evenly distributed to a predetermined thickness (which is determined by the thickness of the adhesive layer thickness limiting part 20), thereby achieving quantitative control of the adhesive layer thickness.

[0201] In addition, by applying pressure uniformly and slowly, the structural adhesive 40 can be evenly and densely distributed between the bonding surface 11 and the substrate bonding surface 55, thereby preventing pores or bubbles from being formed in the adhesive layer, which would lead to a decrease in bonding strength.

[0202] In addition, the installation method according to the embodiment of the present invention may further include a step of trimming the structural adhesive (step S4) and a step of fixing the tooling (step S5).

[0203] As for step S4, after the bonding body 10 is bonded to the tower inner wall 50a (step S3), the shape of the structural adhesive 40 may be trimmed. Preferably, the step of modifying the slope of the structural adhesive 40 may be included.

[0204] Specifically, excess structural adhesive overflowing from between the bonding surface 11 and the substrate bonding surface 55 during the pressurization operation can be removed, and at the same time, the shape of the structural adhesive at the side edge of the bonding body 10 can be modified to ensure the bonding strength.

[0205] For example, Fig.10 As described above, the structural adhesive filled in the edge corner of the bonding body portion 10 (i.e., the second filling portion 42) can be sloped so that the structural adhesive at this position (i.e., the second filling portion 42) has an inclined surface 42a that is inclined at a predetermined angle (e.g., 45 degrees) relative to the bonding surface 11 and the substrate bonding surface 55.

[0206] although Fig.11 4 shows an example in which the inclined surface 42a has a straight line form, but the embodiment is not limited thereto, and the inclined surface 42a may also be formed in a curved line form, for example, a curved line form that is concave downward.

[0207] Therefore, the reliability of the bonding structure can be ensured, and an improved external appearance shape can be achieved.

[0208] In step S5 , after the bonding body 10 is bonded to the tower inner wall 50 a (step S3 ), the accessory connection structure 100 may be clamped by the installation tool 200 .

[0209] Specifically, the installation tool 200 can be used to continuously apply a certain pressing force to the accessory connection structure 100, so that the accessory connection structure 100 can be stably installed and positioned at a predetermined position to prevent its position from moving or affecting other processes or devices.

[0210] Regardless of whether the tower 50 is in a horizontal or vertical state, the accessory connection structure 100 may be fixed and positioned by the installation tool 200 according to the exemplary embodiment of the present invention.

[0211] The configuration and use method of the installation tool 200 according to an exemplary embodiment of the present invention will be described in detail below.

[0212] The installation tool 200 according to the exemplary embodiment of the present invention may include a tool body 210 and a reinforcing portion 220. The tool body 210 may include a first coupling portion 211 and a second coupling portion 212.

[0213] The first joint portion 211 may include a magnetic attraction portion 213 for fixing to the tower inner wall 50a by magnetic attraction. The second joint portion 212 may be used to be combined with the accessory connection structure 100, wherein the reinforcement portion 220 is arranged on the second joint portion 212, and is used to apply reinforcement pressure to the accessory connection structure 100. Under the action of the reinforcement pressure, the accessory connection structure 100 bears the force directed to the tower inner wall 50a, and at the same time, under the support of the adhesive layer thickness limiting portion 20, the accessory connection structure 100 and the tower inner wall 50a have a uniform adhesive layer thickness, and under the action of the reinforcement pressure, the accessory connection structure 100 can avoid the gravity of the accessory connection structure 100 itself affecting the curing of the adhesive layer between it and the tower inner wall 50a, thereby further ensuring the bonding strength.

[0214] As an example, the first coupling portion 211 may be located at an end of the tool body 210 and may be in a plate shape (flat plate form).

[0215] The tool body 210 may be U-shaped or L-shaped, and may further include a connecting support portion 214 which is plate-shaped and perpendicular to the first connecting portion 211. The first connecting portion 211 and the second connecting portion 212 may be parallel to each other and connected to each other through the connecting support portion 214.

[0216] As an example, the tool body 210 may have a curved shape, for example, the tool body 210 may be formed by bending a plate. The bent tool body 210 may include an end portion and a groove portion, the end portion may be used as the first coupling portion 211, and the groove portion may be used as the second coupling portion 212.

[0217] The magnetic attraction portion 213 may be directly embedded in the first coupling portion 211 of the tool body 210. However, the embodiment is not limited thereto, and the magnetic attraction portion 213 may also be provided in the form of a magnetic sheet, that is, the magnetic sheet may be detachably coupled to the first coupling portion 211 of the tool body 210. By providing the magnetic attraction portion 213, the installation tool 200 may be fixed to the inner wall 50a of the tower.

[0218] The second coupling portion 212 may be formed in a slot form, that is, include a slot portion to adhere to the accessory connection structure 100 (eg, Fig.18 In addition, the reinforcing portion 220 may be provided at the second combining portion 212 to apply pressure to the accessory connecting structure 100 (the pressure direction may be perpendicular to the bonding surface 11).

[0219] Specifically, the second connecting portion 212 may include a first through hole 215, and the reinforcing portion 220 may pass through the first through hole 215 of the second connecting portion 212, extend in a direction perpendicular to the second connecting portion 212, and be able to adjust the length of the end of the reinforcing portion 220. In this case, the end of the reinforcing portion 220 may abut against the accessory connection structure 100 (for example, Fig.18 The accessory connection portion 30 shown in FIG.

[0220] According to an embodiment of the present invention, the reinforcing portion 220 may include at least one of a bolt, a screw and a screw, so as to rotate in cooperation with the first through hole 215 (which may be formed with an internal thread) of the second connecting portion 212. Specifically, the reinforcing portion 220 may penetrate the second connecting portion 212 of the tool body 210, and the length of the end of the portion passing through the second connecting portion 212 may be adjusted by rotation. The end of the reinforcing portion 220 may abut against one side of the accessory connecting structure 100 (e.g., the non-adhesive surface 12 or the accessory connecting portion 30), thereby applying pressure to one side of the accessory connecting structure 100.

[0221] Therefore, after the accessory connection structure 100 is bonded to the predetermined position of the tower inner wall 50a, the bonding state and bonding position of the accessory connection structure 100 can be fixed by setting the installation tool 200 to prevent movement and displacement caused by the fluidity of the structural adhesive or the gravity of the accessory connection structure 100, thereby avoiding affecting other devices or subsequent processes.

[0222] According to the accessory connection structure, wind turbine tower, installation tool and installation method of the present invention, the installation of accessories in the tower can be easily achieved and the performance of the bonding structure can be ensured.

[0223] According to the accessory connection structure of the present invention, the processing technology of the connection structure can be simplified and the cost can be reduced.

[0224] The accessory connection structure, wind turbine tower, installation tooling and installation method according to the present invention can avoid quality defects caused by welding installation methods and significantly improve the overall fatigue level.

[0225] According to the accessory connection structure, wind turbine tower, installation tool and installation method of the present invention, the reliability and stability of accessory installation and fixation can be improved.

[0226] The accessory connection structure, wind turbine generator tower, installation tool and installation method according to the present invention can improve the flexibility of accessory installation.

[0227] The accessory connection structure, installation tooling and installation method according to the present invention can be applied to towers of different specifications and installation scenarios, can easily adjust the fixed position, angle and method, and have strong versatility.

[0228] According to the wind turbine tower of the present invention, the fatigue forms of the tower can be subdivided, and the overall fatigue strength can be improved while reducing the weight of the tower. In particular, the weight reduction effect is more obvious when fatigue is limited.

[0229] In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0230] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0231] The features, structures or characteristics described in the present invention may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present invention. However, those skilled in the art will appreciate that the technical solution of the present invention may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring various aspects of the present invention.

Claims

1. An accessory connection structure (100), characterized in that: The accessory connection structure (100) comprises: The bonding body (10) has a bonding surface (11) and a non-bonding surface (12) facing each other in the thickness direction. The adhesive layer thickness limiting portion (20) is arranged on the bonding surface (11) and protrudes relative to the bonding surface (11) in the thickness direction. The accessory connecting portion (30) is connected to the bonding main body portion (10).

2. The accessory connection structure (100) according to claim 1, characterized in that: The adhesive layer thickness limiting portion (20) is a fixed protruding portion and is an integral structure with the bonding main body portion (10).

3. The accessory connection structure (100) according to claim 1, characterized in that: The adhesive layer thickness limiting portion (20) is a movable magnetic sheet, and is combined with the bonding main body portion (10) through magnetic force.

4. The accessory connection structure (100) according to any one of claims 2-3, characterized in that: The thickness of the adhesive layer thickness limiting portion (20) is 0.5 mm-1 mm.

5. The accessory connection structure (100) according to any one of claims 2-3, characterized in that: There is one adhesive layer thickness limiting portion (20) arranged at the center of the bonding surface (11), or there are multiple adhesive layer thickness limiting portions (20) arranged on the bonding surface (11) in a spaced distribution manner.

6. The accessory connection structure (100) according to any one of claims 1 to 3, characterized in that: The roughness of the bonding surface (11) is greater than the roughness of the non-bonding surface (12).

7. The accessory connection structure (100) according to any one of claims 1 to 3, characterized in that: The bonding body (10) comprises a first connection portion (13) located on the non-bonding surface (12), wherein the first connection portion (13) has a first connection hole (14). The accessory connecting portion (30) comprises a second connecting portion (31), wherein the second connecting portion (31) has a second connecting hole (32). The first connecting portion (13) and the second connecting portion (31) are rotatably connected to each other via a rotatable connecting member (80) passing through the first connecting hole (14) and the second connecting hole (32).

8. The accessory connection structure (100) according to claim 7, characterized in that: The bonding body portion (10) has a bent shape and comprises a body and the first connection portion (13) which forms a predetermined angle with respect to the body.

9. The accessory connection structure (100) according to claim 7, characterized in that: The bonding body (10) comprises a plurality of first connection parts (13), wherein the first connection parts (13) are plate-shaped and are arranged to be spaced apart from each other by a predetermined distance. The second connection portion (31) has a cylindrical shape or a plate shape, and is disposed adjacent to the first connection portion (13).

10. The accessory connection structure (100) according to claim 9, characterized in that: The accessory connecting portion (30) further includes a third connecting portion (33), The third connection portion (33) is plate-shaped, fixedly connected to one side of the second connection portion (31), and extends away from the bonding main body portion (10).

11. A wind turbine generator tower, characterized in that: The wind turbine generator tower comprises: The tower (50) has a base material bonding surface (55) located on the inner wall (50a) of the tower. A plurality of accessory connection structures (100) according to any one of claims 1 to 10 are bonded to the substrate bonding surface (55) by means of a structural adhesive (40).

12. The wind turbine generator tower according to claim 11, characterized in that: The structural adhesive (40) comprises a first filling portion (41) and a second filling portion (42), The first filling portion (41) is interposed between the base material bonding surface (55) of the tower inner wall (50a) and the bonding surface (11) of the bonding body portion (10). The second filling portion (42) surrounds the edge corner of the bonding body portion (10) and has an inclined surface (42a), wherein the inclined surface (42a) extends from the non-bonding surface (12) to the inner wall (50a) of the tower.

13. The wind turbine generator tower according to claim 11, characterized in that: The tower (50) comprises a first cylinder section (51), a second cylinder section (52) and a third cylinder section (53), the thickness of the first cylinder section (51) is smaller than the thickness of the second cylinder section (52) and the thickness of the third cylinder section (53), and the first cylinder section (51) is located between the second cylinder section (52) and the third cylinder section (53), The accessory connection structure (100) is coupled to the inner wall of the first barrel section (51), The second cylinder segment (52) is provided with an upper fixed end structure (61), and the third cylinder segment (53) is provided with a lower fixed end structure (62). The upper fixed end structure (61) and the lower fixed end structure (62) are respectively connected to the inner walls of the second cylinder segment (52) and the third cylinder segment (53) by welding.

14. The wind turbine generator tower according to claim 13, characterized in that: The wind turbine generator tower further comprises a rope (70), wherein the rope (70) is fixed to an upper platform in the tower (50). The upper fixed end structure (61) and the accessory connection structure (100) are provided with a first lock buckle (75), wherein the first lock buckle (75) comprises a rope loop through which the rope (70) passes. The lower fixed end structure (62) is provided with a second lock buckle (76), and the second lock buckle (76) is used to fix the end of the rope (70). The rope (70) extends vertically downward and sequentially connects the upper fixed end structure (61), the accessory connection structure (100) and the lower fixed end structure (62) in series.

15. The wind turbine generator tower according to claim 13 or 14, characterized in that: The wind turbine generator tower also includes a ladder (90) comprising a pair of vertical poles and a plurality of tubular cross bars connected between the vertical poles, wherein both ends of the tubular cross bars have openings. A connecting rod (35) is provided on the end of the accessory connecting portion of the accessory connecting structure (100), wherein the connecting rod (35) passes through the tubular crossbar of the ladder (90) via the opening.

16. An installation tool (200), characterized in that: The installation tool is used for installing a wind turbine tower according to any one of claims 11 to 15, and the installation tool (200) comprises a tool body (210) and a reinforcement part (220). The tool body (210) comprises a first combining portion (211) and a second combining portion (212). The first coupling portion (211) is used to couple to the inner wall (50a) of the tower, and comprises a magnetic attraction portion (213). The second combining portion (212) is used to be combined with the accessory connecting structure (100), wherein the reinforcing portion (220) is arranged on the second combining portion (212) and is used to apply reinforcing pressure to the accessory connecting structure (100).

17. The installation tool according to claim 16, characterized in that: The first combining portion (211) is located at the end of the tool body (210) and is in a plate shape. The tool body (210) is U-shaped or L-shaped, and further comprises a connecting support portion (214), wherein the connecting support portion (214) is plate-shaped and perpendicular to the first combining portion (211). The second combining portion (212) and the first combining portion (211) are parallel to each other and are connected to each other via the connecting support portion (214).

18. The installation tool according to claim 17, characterized in that: The second combining portion (212) comprises a first through hole (215), The reinforcing portion (220) passes through the first through hole (215) of the second combining portion (212), extends in a direction perpendicular to the second combining portion (212), and is capable of adjusting the length of the end of the reinforcing portion (220) extending out. The end portion of the reinforcing portion (220) abuts against the accessory connecting structure (100).

19. The installation tool according to claim 18, characterized in that: The reinforcing portion (220) comprises at least one of a bolt, a threaded rod and a screw, and is used for rotating in cooperation with the first through hole (215) of the second coupling portion (212).

20. An installation method, characterized in that: The installation method is used for installing a wind turbine tower according to any one of claims 11 to 15, and the installation method comprises: The base material bonding surface (55) of the tower inner wall (50a) and the bonding surface (11) of the bonding body (10) are polished. A structural adhesive (40) is applied on at least one of the substrate bonding surface (55) and the bonding surface (11) of the bonding body (10), The bonding body (10) is bonded to the inner wall (50a) of the tower.

21. The installation method according to claim 20, characterized in that: After the bonding body (10) is bonded to the tower inner wall (50a), the installation tool (200) is coupled to the tower inner wall (50a), and the end position of the reinforcement part (220) of the installation tool (200) is adjusted so that the end abuts against the accessory connection structure (100) and applies pressure to the accessory connection structure (100).

22. The installation method according to claim 20, characterized in that: After the bonding body (10) is bonded to the inner wall (50a) of the tower, the structural adhesive (40) is sloped.

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