Modular wind turbine blade post-curing tooling

Abstract

The present application relates to the technical field of wind power blade, and more particularly to a modular wind power blade post-curing tool, comprising a traction flatcar, a deformation prevention support and a plurality of profiled supports; the traction flatcar is arranged on the ground along the length direction of the wind power blade; the deformation prevention support is installed on the root end surface; the plurality of profiled supports are arranged in intervals along the length direction of the traction flatcar, and the parting line of the wind power blade is perpendicular to the ground and then is arranged to rotate counterclockwise by one hole position angle; each profiled support is provided with a profiled plate, the two ends of the profiled plate are respectively bent towards the windward surface and the leeward surface of the wind power blade, the middle part of the profiled plate is in contact with and is limited by the bottom of the wind power blade; the wind power blade can smoothly enter and exit the post-curing furnace, and the occupied area is also reduced; the deformation prevention support forms a five-point support action on the cross-sectional shape of the root section, and the plurality of profiled supports form segmented support actions on the wind power blade, effectively avoiding the deformation of the root section circle and the blade profile of the modular wind power blade.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade technology, and in particular to a modular wind turbine blade post-curing tooling. Background Technology

[0002] The basic molding method for traditional wind turbine blades is as follows: PS and SS surface shells are vacuum-cast into a main mold, and then the two halves are bonded together using structural adhesive. Since the entire molding process takes place in the main mold, the blades are heated to the required fiberglass conversion temperature by the mold heating system and the root-end heating fan. Therefore, most blades do not undergo post-curing after demolding, and thus, there is no need to build a dedicated post-curing oven or design matching post-curing fixtures.

[0003] The related technology adopts a modular wind turbine blade molding method, in which the blade is divided into several modules and bonded together with structural adhesive on a specially designed assembly fixture, and then locally reinforced. This molding method, which is detached from the mold, makes it difficult to systematically heat and cure the blade, and the fiberglass conversion temperature of the structural adhesive and resin is often not guaranteed. Therefore, the modular blade needs to undergo a post-curing process in a post-curing oven. The entire process is carried out detached from the mold. The two-point support method at the blade root and the blade middle is prone to blade profile deformation. In order to control the amount of blade surface deformation, a matching post-curing fixture support needs to be designed.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the present invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a post-curing fixture for modular wind turbine blades to avoid surface deformation of the modular blades during the curing process after heating, thereby ensuring the aerodynamic performance of the formed blades and the power generation efficiency of the wind turbine.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a modular wind turbine blade post-curing fixture, comprising: a traction flatcar, an anti-deformation bracket, and multiple conformal brackets;

[0007] The traction flatcar is horizontally positioned on the ground along the length of the wind turbine blade;

[0008] The anti-deformation bracket is in the shape of a regular pentagon and is installed on the root end face of the wind turbine blade, providing five-point support for the cross-sectional shape of the root section.

[0009] Multiple conformal supports are arranged at intervals along the length of the traction flatcar, providing segmented support for the wind turbine blades.

[0010] The parting line of the wind turbine blade is perpendicular to the ground and then rotated counterclockwise by one hole angle; each conforming bracket is provided with a conforming plate, the two ends of which are bent toward the windward and leeward sides of the wind turbine blade, respectively, and the middle part contacts and limits the bottom of the wind turbine blade.

[0011] Furthermore, the traction flatcar includes multiple support bases and ground rails. The ground rails extend along the length of the wind turbine blades. Each support base is provided with a corresponding conformal support. Track wheels are symmetrically arranged on both sides of the bottom of the support base. The track wheels cooperate with the ground rails, allowing the support bases to move along the length of the ground rails.

[0012] Furthermore, the support base is provided with connectors on both sides along the moving direction, and a connecting rod is connected to the connectors via a pin. An adapter rod is provided between the two oppositely arranged connecting rods, and the two ends of the adapter rod are fixedly connected to the ends of the two connecting rods opposite to the connectors via bolts.

[0013] Furthermore, the connector head is provided with a through first connecting hole, and the connecting rod is provided with a first clamping plate and a second clamping plate on the side facing the connector head. The first clamping plate and the second clamping plate are arranged parallel to each other. The connector head is disposed between the first clamping plate and the second clamping plate, and its two sides are respectively fitted to the first clamping plate and the second clamping plate. The first clamping plate and the second clamping plate are provided with through second connecting holes. The first connecting hole and the second connecting hole are coaxially arranged, and the pin passes through the first connecting hole and the second connecting hole to movably connect the connector head and the connecting rod.

[0014] Furthermore, the conformal support includes a blade root section support and a profile support. The blade root section support is located at the blade root of the wind turbine blade and is disposed opposite to the anti-deformation support. The profile supports are arranged at intervals with the blade root section support as the starting point and are disposed on the corresponding support base.

[0015] Furthermore, the leaf root segment support includes a root end frame, a first root end fixing plate, a second root end fixing plate, a third root end fixing plate, round steel, and an iron plate;

[0016] The two sides of the root end frame are positioned higher than the middle. The first root end fixing plate, the second root end fixing plate, and the third root end fixing plate are respectively fixed to the two sides and the middle of the root end frame, and the extension ends are respectively fixedly connected to the SS side, the PS side, and the bottom of the wind turbine blade root end by hexagonal head bolts.

[0017] The iron plate is bent in the middle into a semi-circular structure facing the wind turbine blade, and the side away from the wind turbine blade is tangentially set to the root end frame. The two ends of the iron plate are bent into horizontal planar structures and are fixedly connected to the upper end face of the root end frame. The round steel is set between the bent ends of the iron plate and the root end frame. The conformal plate is located on the side of the iron plate facing the wind turbine blade, and the conformal plate has the same cross-sectional shape as the iron plate.

[0018] Furthermore, the profile support includes a profile frame, two fixed plates, and a connecting pipe. The two fixed plates are arranged parallel to each other. The fixed plates have an opening in the middle to accommodate the wind turbine blade. The opening has the same cross-sectional shape as the conformal plate. The conformal plate is located at the opening position of the two fixed plates and is connected to the top of the fixed plates. The two ends of the connecting pipe are respectively connected to the top positions of the two fixed plates, and the middle part of the connecting pipe is fixedly connected to the top of the profile frame.

[0019] Furthermore, the anti-deformation bracket includes 5 support rods and an adapter plate. The 5 support rods are connected end to end to form a regular pentagonal structure. The adapter plate is set at the connection of adjacent support rods, and one end extends toward the inner side of the wind turbine blade. It is fixedly connected to the bolt hole at the root end face of the wind turbine blade by bolts.

[0020] Furthermore, the anti-deformation bracket also includes 5 auxiliary rods. The auxiliary rods are located within the regular pentagonal structure formed by the support rods. One end of each auxiliary rod is fixedly connected to the connection point of one of the support rods, and the other end is fixedly connected to the center of the regular pentagonal structure. Adjacent auxiliary rods are connected to the corresponding support rods to form a triangular structure.

[0021] Furthermore, the top of the anti-deformation bracket is provided with an annular sling, and two fixing rings pass through the annular sling and are connected to the end of the adapter plate opposite to the support rod.

[0022] The beneficial effects of this invention are as follows: This invention guides the wind turbine blades by using a traction flatcar, enabling the wind turbine blades to smoothly enter and exit the curing furnace, while also reducing the floor space occupied. By setting anti-deformation brackets on the blade root end face, a five-point support is formed for the cross-sectional shape of the blade root section, and the conformal plates on multiple conformal brackets can form a segmented support for the wind turbine blades. This effectively avoids deformation of the blade root pitch circle and blade profile during the heating and curing process of modular wind turbine blades, greatly reducing the risk that wind turbine blades will be difficult to install due to pitch circle deformation and that blade profile deformation will affect the power generation efficiency of the blades. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the modular wind turbine blade post-curing fixture in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the traction flatcar in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the support base in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram illustrating the connection relationship between the bracket base and the connecting rod in an embodiment of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a schematic diagram illustrating the connection relationship between the connecting rod and the pin in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the leaf root segment support structure in an embodiment of the present invention;

[0031] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0032] Figure 9 This is a schematic diagram of the structure of the profile support in an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram showing the positions of the profile support and the wind turbine blades in an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the assembly position of the anti-deformation bracket in an embodiment of the present invention.

[0035] Reference numerals: 01, Wind turbine blade; 01a, Blade root end face; 10, Traction flatcar; 11, Support base; 111, Track wheel; 112, Connector; 112a, First connecting hole; 12, Ground rail; 13, Connecting rod; 131, First clamping plate; 131a, Second connecting hole; 132, Second clamping plate; 14, Pin; 15, Adapter rod; 20, Anti-deformation bracket; 21, Support rod; 22, Adapter 23. Plate; 24. Auxiliary rod; 25. Ring sling; 30. Fixing ring; 30. Conformal bracket; 30a. Conformal plate; 31. Leaf root section bracket; 311. Root end frame; 312. First root end fixing plate; 313. Second root end fixing plate; 314. Third root end fixing plate; 315. Round steel; 316. Iron plate; 32. Profile bracket; 321. Profile frame; 322. Fixing plate; 323. Connecting pipe. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] like Figures 1 to 11 The modular wind turbine blade post-curing fixture shown includes:

[0040] 10 traction flatcars, 20 anti-deformation brackets, and multiple conformal brackets 30;

[0041] The traction flatcar 10 is horizontally set on the ground along the length of the wind turbine blade 01;

[0042] The anti-deformation bracket 20 is a regular pentagon and is installed on the root end face 01a of the wind turbine blade 01, providing five-point support for the cross-sectional shape of the root section.

[0043] Multiple conformal supports 30 are arranged at intervals along the length of the traction flatcar 10 to provide segmented support for the wind turbine blade 01.

[0044] Among them, the parting line of the wind turbine blade 01 is perpendicular to the ground and then rotated counterclockwise by one hole angle; each conforming bracket 30 is provided with a conforming plate 30a, the two ends of the conforming plate 30a are bent toward the windward and leeward sides of the wind turbine blade 01 respectively, and the middle part is in contact with the bottom of the wind turbine blade 01 and is limited.

[0045] This invention guides the wind turbine blade 01 using a traction flatcar 10, allowing the blade to smoothly enter and exit the curing furnace while reducing its footprint. By installing anti-deformation brackets 20 on the blade root end face 01a, a five-point support is provided for the cross-sectional shape of the blade root section. Furthermore, the conformal plates 30a on the multiple conformal brackets 30 provide segmented support for the wind turbine blade 01. This effectively prevents deformation of the blade root pitch circle and blade profile during the heating and curing process of the modular wind turbine blade 01, greatly reducing the risk of the wind turbine blade 01 being difficult to install due to pitch circle deformation and the blade's power generation efficiency being affected by profile deformation.

[0046] It should be noted that the root end face 01a of the wind turbine blade 01 is provided with several bolt holes circumferentially along the inner shaft surface. The angle formed by the line connecting the center of the adjacent threaded hole and the center of the pitch circle of the blade root section is a hole position angle. After the parting line of the wind turbine blade 01 is perpendicular to the ground, considering the position of the blade's center of gravity, it is necessary to rotate counterclockwise by a hole position angle so that the blade is in a vertical state after curing.

[0047] Among them, the conformal plate 30a is generally made of high temperature resistant rubber, which can form a flexible contact with the wind turbine blade 01, avoid damage to the surface of the wind turbine blade 01, and can also withstand the high temperature environment in the curing oven, avoid deformation during the curing process, and ensure the stability of the support.

[0048] Based on the above embodiments, the traction flatcar 10 includes multiple support bases 11 and ground rails 12. The ground rails 12 extend along the length of the wind turbine blade 01. Each support base 11 is provided with a corresponding conformal support 30. Track wheels 111 are symmetrically arranged on both sides of the bottom of the support base 11. The track wheels 111 cooperate with the ground rails 12, allowing the support base 11 to move along the length of the ground rails 12. By setting multiple support bases 11 to support the conformal support 30 and the wind turbine blade 01, and driving the wind turbine blade 01 to move along the length of the ground rails 12, the transportation process of the blade is guided, and damage or deformation of the blade is avoided. At the same time, the track wheels 111 are symmetrically arranged on both sides of the bottom of the support base 11. The load-bearing capacity of a single track wheel 111 is at least 8t, so that it can bear the weight of the blade and the support base 11 without deformation. With the cooperation of the track wheels 111 and the ground rails 12, the wind turbine blade 01 can move smoothly and steadily.

[0049] Based on the above embodiment, the support base 11 is provided with connectors 112 on both sides along the moving direction. A connecting rod 13 is connected to the connector 112 via a pin 14. An adapter rod 15 is provided between the two oppositely arranged connecting rods 13. The two ends of the adapter rod 15 are fixedly connected to the ends of the two connecting rods 13 away from the connectors 112 by bolts. The connecting rod 13 and the pin 14 can be connected by an M36 pin 14, and the connecting rod 13 and the adapter rod 15 can be connected by an M12 bolt. No specific limitation is made here. Through the connection between the connecting rod 13 and the connector 112 and the rigid connection between adjacent connecting rods 13, the relative position of the support base 11 remains unchanged whether it is stationary or in the process of traction movement, thereby avoiding axial movement between the corresponding conformal support 30 and the wind turbine blade 01 and ensuring the stability of the support.

[0050] The adapter rod 15 only serves as an auxiliary connection between adjacent connecting rods 13 when the distance between adjacent bracket bases 11 is too large. If the distance between adjacent connecting rods 13 is sufficient, the adapter rod 15 can be omitted, and the adjacent connecting rods 13 can be directly fixed together with bolts.

[0051] Based on the above embodiment, the connector 112 is provided with a through first connecting hole 112a, and the connecting rod 13 is provided with a first clamping plate 131 and a second clamping plate 132 on the side facing the connector 112. The first clamping plate 131 and the second clamping plate 132 are arranged parallel to each other. The connector 112 is disposed between the first clamping plate 131 and the second clamping plate 132, and its two sides are respectively fitted to the first clamping plate 131 and the second clamping plate 132. The first clamping plate 131 and the second clamping plate 132 are provided with a through second connecting hole 131a. A coaxial arrangement is provided, with pin 14 passing through the first connecting hole 112a and the second connecting hole 131a, movably connecting the connector 112 and the connecting rod 13. By placing the connector 112 between the first clamping plate 131 and the second clamping plate 132, a sandwich structure is formed between the connector 112, the first clamping plate 131 and the second clamping plate 132. Under the connection action of pin 14, the connector 112 can be deflected at a certain angle relative to the connecting rod 13 between the bracket base 11 and the connecting rod 13, thereby adjusting the setting position and angle of the wind turbine blade 01 and avoiding jamming during movement.

[0052] Based on the above embodiments, the conformal support 30 includes a blade root section support 31 and a profile support 32. The blade root section support 31 is located at the blade root of the wind turbine blade 01 and is arranged opposite to the anti-deformation support 20. The profile support 32 is arranged at intervals with the blade root section support 31 as the starting point and is set on the corresponding support base 11.

[0053] It should be noted that, taking into account the weight and deformation calculation results of the wind turbine blade 01, the blade root support 31 is set at a distance of 0.1m from the blade root end face 01a, and five profile supports 32 are set, arranged sequentially at distances of 17m, 34m, 52.5m, 75m, and 96m from the blade root end face 01a; the axial length of the conforming plate 30a on the blade root support 31 is 20cm, and the axial lengths of the conforming plates 30a on the profile supports 32 are 50cm, 50cm, 50cm, 10cm, and 10cm respectively; since the wind turbine blade 01 is pre-bent by 5.91m, in order to further reduce the footprint of the wind turbine blade 01 in the width direction, the angle between the central axis of the wind turbine blade 01 and the central axis of the traction flatcar 10 is set to 2.5°, so that the relative position of the profile supports 32 remains unchanged, and they are installed on the corresponding support base 11.

[0054] Based on the above embodiments, the leaf root segment support 31 includes a root end frame 311, a first root end fixing plate 322312, a second root end fixing plate 322313, a third root end fixing plate 322314, a round steel bar 315, and an iron plate 316.

[0055] The root end frame 311 is positioned higher than the middle on both sides. The first root end fixing plate 322312, the second root end fixing plate 322313, and the third root end fixing plate 322314 are fixed to the sides and the middle of the root end frame 311, respectively. The extended ends are fixedly connected to the SS side, the PS side, and the bottom of the wind turbine blade 01 root end by hexagonal head bolts. The blade root section bracket 31 is connected and fixed to the blade root end face 01a by 7 M36 external hexagonal bolts. Three bolts are provided on the third root end fixing plate 322314, and two bolts are provided on the first root end fixing plate 322312 and the second fixing plate 322, respectively, so that the root end frame 311 can form a stable and uniform connection with the blade root end face 01a.

[0056] The iron plate 316 is bent in the middle into a semi-circular structure facing the wind turbine blade 01, and the side away from the wind turbine blade 01 is tangentially set to the root end frame 311. The two ends of the iron plate 316 are bent into horizontal planar structures and fixedly connected to the upper end face of the root end frame 311. A round steel bar 315 is disposed between the bent ends of the iron plate 316 and the root end frame 311. A conformal plate 30a is located on the side of the iron plate 316 facing the wind turbine blade 01, and the conformal plate 30a is perpendicular to the iron plate 316. The cross-sectional shapes are the same; through the abutment action of the round steel 315 at the bend of the iron plate 316, the iron plate 316 is in a smooth bending state, which restricts the bending shape and angle of the iron plate 316 and ensures the stability of the semi-circular structure in the middle of the iron plate 316; through the support action of the iron plate 316 on the conformal plate 30a, the conformal plate 30a can be set on the root end frame 311 with a defined shape, and at the same time, it also ensures the close support action between the conformal plate 30a and the wind turbine blade 01.

[0057] Based on the above embodiments, to avoid damage to the surface of the wind turbine blade 01 caused by the profile support 32, the profile support 32 only provides conformal support for the blade. The profile support 32 includes a profile frame 321, two fixing plates 322, and a connecting pipe 323. The two fixing plates 322 are arranged parallel to each other. The middle of the fixing plate 322 has an opening to accommodate the wind turbine blade 01. The opening has the same cross-sectional shape as the conformal plate 30a. The conformal plate 30a is set at the opening position of the two fixing plates 322 and connected to the top of the fixing plates 322. The two ends of the connecting pipe 323 are respectively connected to the top positions of the two fixing plates 322, and the middle part of the connecting pipe 323 is fixedly connected to the top of the profile frame 321. Through the connection between the connecting pipe 323 and the two fixing plates 322, the conformal plate 30a set at the opening of the fixing plate 322 can form a stable and uniform support for the wind turbine blade 01, effectively preventing profile deformation, thereby ensuring the curing effect of the wind turbine blade 01.

[0058] Based on the above embodiments, the anti-deformation bracket 20 includes five support rods 21 and an adapter plate 22. The five support rods 21 are connected end to end to form a regular pentagonal structure. The adapter plate 22 is set at the connection of adjacent support rods 21, with one end extending towards the inner side of the wind turbine blade 01, and is fixedly connected to the bolt holes of the root end face 01a of the wind turbine blade 01 by bolts. Generally, 10 M36 hexagonal bolts are used to connect to the bolt holes of the root end face 01a, with two bolts on each adapter plate 22 to ensure the stability of the connection. The support rods 21 are connected end to end to form a regular pentagonal structure, and under the connection of the adapter plate 22 and the bolt holes, a segmented support effect is formed on the cross section of the root section of the wind turbine blade 01, thereby effectively preventing deformation of the root pitch circle and ensuring the stability of the wind turbine blade 01 structure.

[0059] Based on the above embodiments, the anti-deformation bracket 20 also includes five auxiliary rods 23. The auxiliary rods 23 are located within the regular pentagonal structure formed by the support rods 21. One end of each auxiliary rod is fixedly connected to the connection point of one of the support rods 21, and the other end is fixedly connected to the center of the regular pentagonal structure. Two adjacent auxiliary rods 23 are connected to the corresponding support rods 21 to form a triangular structure. The formation of the triangular structure effectively prevents the support rods 21 from deforming, thereby further ensuring the stability of the anti-deformation bracket 20 in maintaining the shape of the blade root section and further preventing deformation of the blade root nodal circle.

[0060] Based on the above embodiments, the top of the anti-deformation bracket 20 is provided with an annular sling 24, and two fixing rings 25 are connected through the annular sling 24 adapter plate 22 at the end away from the support rod 21. Through the connection between the annular sling 24 and the fixing rings 25, when the wind turbine blade 01 is installed on the post-curing fixture, the wind turbine blade 01 can be assisted in the hoisting by connecting the annular sling 24, thereby avoiding the deformation of the blade root pitch circle caused by directly hoisting the blade root section, and ensuring the stability of the structure of the wind turbine blade 01 after curing.

[0061] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A modular wind turbine blade post-curing fixture, characterized in that, include: Traction flatcar, anti-deformation bracket, and multiple conformal brackets; The traction flatcar is horizontally positioned on the ground along the length of the wind turbine blade; The anti-deformation bracket is in the shape of a regular pentagon and is installed on the root end face of the wind turbine blade, providing five-point support for the cross-sectional shape of the root section. Multiple conformal supports are arranged at intervals along the length of the traction flatcar, providing segmented support for the wind turbine blades. The parting line of the wind turbine blade is perpendicular to the ground and then rotated counterclockwise by one hole angle; each conforming bracket is provided with a conforming plate, the two ends of which are bent toward the windward and leeward sides of the wind turbine blade, respectively, and the middle part contacts and limits the bottom of the wind turbine blade. The traction flatcar includes multiple support bases; The conformal support includes a blade root section support and a profile support. The blade root section support is located at the blade root of the wind turbine blade and is arranged opposite to the anti-deformation support. The profile support is arranged at intervals with the blade root section support as the starting point and is set on the corresponding support base.

2. The modular wind turbine blade post-curing fixture according to claim 1, characterized in that, The traction flatcar also includes a ground rail, which extends along the length of the wind turbine blade. Each support base is provided with a corresponding conformal support. Track wheels are symmetrically arranged on both sides of the bottom of the support base. The track wheels cooperate with the ground rail, so that the support base moves along the length of the ground rail.

3. The modular wind turbine blade post-curing fixture according to claim 2, characterized in that, The support base is provided with connectors on both sides along the direction of movement. A connecting rod is connected to the connector via a pin. An adapter rod is provided between two opposite connecting rods. The two ends of the adapter rod are fixedly connected to the ends of the two connecting rods opposite to the connectors via bolts.

4. The modular wind turbine blade post-curing fixture according to claim 3, characterized in that, The connector head is provided with a through first connecting hole. The connecting rod is provided with a first clamping plate and a second clamping plate on the side facing the connector head. The first clamping plate and the second clamping plate are arranged parallel to each other. The connector head is disposed between the first clamping plate and the second clamping plate, and its two sides are respectively fitted to the first clamping plate and the second clamping plate. The first clamping plate and the second clamping plate are provided with a through second connecting hole. The first connecting hole and the second connecting hole are arranged coaxially. The pin passes through the first connecting hole and the second connecting hole, and movably connects the connector head and the connecting rod.

5. The modular wind turbine blade post-curing fixture according to claim 1, characterized in that, The leaf root segment support includes a root end frame, a first root end fixing plate, a second root end fixing plate, a third root end fixing plate, round steel, and iron plate; The two sides of the root end frame are positioned higher than the middle. The first root end fixing plate, the second root end fixing plate, and the third root end fixing plate are respectively fixed to the two sides and the middle of the root end frame, and the extension ends are respectively fixedly connected to the SS side, the PS side, and the bottom of the wind turbine blade root end by hexagonal head bolts. The iron plate is bent in the middle into a semi-circular structure facing the wind turbine blade, and the side away from the wind turbine blade is tangentially set to the root end frame. The two ends of the iron plate are bent into horizontal planar structures and are fixedly connected to the upper end face of the root end frame. The round steel is set between the bent ends of the iron plate and the root end frame. The conformal plate is located on the side of the iron plate facing the wind turbine blade, and the conformal plate has the same cross-sectional shape as the iron plate.

6. The modular wind turbine blade post-curing fixture according to claim 1, characterized in that, The profile support includes a profile frame, two fixed plates, and a connecting pipe. The two fixed plates are arranged parallel to each other. The middle of each fixed plate has an opening to accommodate the wind turbine blade. The opening has the same cross-sectional shape as the conformal plate. The conformal plate is located at the opening of the two fixed plates and is connected to the top of the fixed plates. The two ends of the connecting pipe are respectively connected to the top of the two fixed plates, and the middle of the connecting pipe is fixedly connected to the top of the profile frame.

7. The modular wind turbine blade post-curing fixture according to claim 1, characterized in that, The anti-deformation bracket includes 5 support rods and an adapter plate. The 5 support rods are connected end to end to form a regular pentagonal structure. The adapter plate is set at the connection of adjacent support rods, with one end extending toward the inner side of the wind turbine blade, and is fixedly connected to the bolt hole at the root end of the wind turbine blade by bolts.

8. The modular wind turbine blade post-curing fixture according to claim 7, characterized in that, The anti-deformation bracket also includes 5 auxiliary rods. The auxiliary rods are located within the regular pentagonal structure formed by the support rods. One end of each auxiliary rod is fixedly connected to the connection point of one of the support rods, and the other end is fixedly connected to the center of the regular pentagonal structure. Two adjacent auxiliary rods are connected to the corresponding support rods to form a triangular structure.

9. The modular wind turbine blade post-curing fixture according to claim 7, characterized in that, The top of the anti-deformation bracket is provided with an annular sling, and two fixing rings pass through the annular sling and are connected to the end of the adapter plate opposite to the support rod.

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