Blade root support of wind power blade

Abstract

The utility model discloses a blade root support of a wind power blade, which relates to the technical field of wind power blade transportation and comprises a base, a bracket and a fixing component. The base extends along a first horizontal direction; the bracket is located above the base, the bottom of the bracket is detachably connected with the base, and the top of the bracket is used for abutting against the peripheral side of the blade root; the two fixing assemblies are located at the two ends of the base correspondingly, each fixing assembly comprises a bottom beam and a fixing plate, the bottom beams are connected with the base, the fixing plates are fixed to the tops of the bottom beams, the fixing plates are provided with a plurality of mounting hole sets, and the mounting hole sets are distributed at intervals in the radial direction of the end face of the blade root. Each mounting hole set comprises a plurality of mounting holes distributed in the circumferential direction of the end face of the blade root at intervals, and the end face, supported on the top face of the bracket, of the blade root is selectively connected with the mounting holes in one mounting hole set. And by arranging a plurality of mounting hole groups matched with different types of wind power blades, the blade roots of various wind power blades can be connected and fixed, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blade transportation, and particularly relates to a root bracket for a wind turbine blade. Background Art

[0002] A wind turbine mainly consists of a tower barrel, a nacelle and an impeller. Among them, the impeller is mainly responsible for converting wind energy into mechanical energy, and the impeller mainly includes wind turbine blades and a hub. The wind turbine blades are connected to the hub through their roots. The wind turbine blades are one of the core components of a wind power generation unit. If the materials of the wind turbine blades gradually age or are damaged in extreme weather during use, the damaged wind turbine blades need to be replaced in time.

[0003] Due to the large volume, large weight and long length of wind turbine blades, their transportation is extremely troublesome. It is necessary to ensure that the wind turbine blades are placed stably to prevent damage during transportation. In the prior art, specific transportation vehicles are usually used to transport wind turbine blades, and special brackets are usually equipped on the vehicles to support the roots of the wind turbine blades and are fixed by bolt connection with the roots.

[0004] The problem with the above technology is that since wind turbine blades have various models of different sizes, and its bracket can only fix the root of one model of wind turbine blade and can only meet the transportation of one wind turbine blade. When transporting other models of wind turbine blades, it is usually necessary to replace the bracket to match different models of wind turbine blades. However, replacing the bracket is extremely troublesome and time-consuming and laborious. Summary of the Utility Model

[0005] The main purpose of the utility model is to propose a root bracket for a wind turbine blade, aiming to solve the technical problems that replacing the bracket is extremely troublesome and time-consuming and laborious.

[0006] To achieve the above purpose, the utility model proposes a root bracket for a wind turbine blade, and the root bracket includes:

[0007] A base, the base extending along a first horizontal direction;

[0008] A bracket, the bracket being located above the base, the bottom of the bracket being detachably connected to the base, and the top of the bracket being used for abutting against the outer peripheral side of the root to support the root;

[0009] Fixing components, two fixing components are provided and are respectively located at both ends of the base along the first horizontal direction. Each fixing component includes a bottom beam and a fixing plate. The bottom beam is connected to the base, the fixing plate is fixed to the top of the bottom beam, the fixing plate is provided with a plurality of mounting hole groups, the plurality of mounting hole groups are distributed at intervals in the radial direction of the blade root end face, each mounting hole group includes a plurality of mounting holes distributed at intervals in the circumferential direction of the blade root end face, and the end face of the blade root supported on the top surface of the bracket is selectively connected to a plurality of the mounting holes in one of the mounting hole groups.

[0010] In one embodiment, the fixing plate is located on one side of the bracket along the second horizontal direction and is spaced apart from the bracket, and the second horizontal direction is perpendicular to the first horizontal direction.

[0011] In one embodiment, the fixing plate includes a fixing part and a mounting part connected vertically. The fixing part is located above the mounting part. The fixing part is provided with a plurality of the mounting hole groups. The mounting part is provided with weight-reducing holes, and the fixing part is connected to the bottom beam.

[0012] In one embodiment, the top surface of the fixing part away from the mounting part is a curved surface, and the height of the fixing part in the vertical direction is gradually increased from the direction close to the bracket to the direction away from the bracket.

[0013] In one embodiment, the fixing component further includes a reinforcing rib, and the reinforcing rib is connected to the mounting part and the bottom beam.

[0014] In one embodiment, the bracket includes:

[0015] A connecting plate, the connecting plate extends along the first horizontal direction and is detachably connected to the base;

[0016] A support frame, the support frame is arranged vertically, and the bottom of the support frame is mounted on the connecting plate;

[0017] A support plate, the support plate is mounted on the top of the support frame.

[0018] In one embodiment, the support plate is an arc-shaped plate that is recessed downward to match the outer peripheral side of the blade root.

[0019] In one embodiment, the support frame is a support frame with openings at both the top and the bottom. The support frame is composed of a plurality of support plates connected end to end in sequence, and through holes are provided on each support plate;

[0020] Or,

[0021] The support frame includes a plurality of columns arranged at intervals along the first horizontal direction.

[0022] In one embodiment, the base includes a bottom plate, a top plate, and a plurality of load-bearing plates connecting the bottom plate and the top plate. The plurality of load-bearing plates are arranged at intervals along the first horizontal direction; the bracket is connected to the top plate by bolts.

[0023] In one embodiment, the bottom surface of the bottom plate (11) is arranged at an angle with the bottom surface of the bottom beam (31).

[0024] The technical solution of the present utility model uses a bracket to support the blade root, and the bracket and the base are detachably connected. Therefore, if the bracket is damaged during use, only the bracket needs to be replaced, which saves costs; and fixing components are provided at both ends of the base, and the fixing plate therein is connected to the end face of the blade root, so as to fix the blade root, which is convenient for maintaining the placement posture of the wind power blade during transportation and avoiding damage; specifically, a plurality of mounting hole groups are provided on the fixing plate. According to the different model sizes of the wind power blades, one of the mounting hole groups is correspondingly selected to be connected to the blade root of the wind power blade. That is, without replacing the fixing components or adjusting the positions of the fixing components, it can be matched with the blade roots of various wind power blades, with good versatility and time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a schematic structural diagram of an embodiment of the blade root bracket of the wind power blade provided by the present utility model;

[0027] Figure 2 It is a rear view of an embodiment of the blade root bracket of the wind power blade provided by the present utility model;

[0028] Figure 3 It is a top view of an embodiment of the blade root bracket of the wind power blade provided by the present utility model;

[0029] Figure 4 It is a side view of an embodiment of the blade root bracket of the wind power blade provided by the present utility model;

[0030] Figure 5 It is a front view of another embodiment of the bracket of the blade root bracket of the wind power blade provided by the present utility model.

[0031] Explanation of the reference numerals in the drawings:

[0032] 100, blade root bracket; 1, base; 11, bottom plate; 12, top plate; 13, load-bearing plate; 14, bolt; 2, bracket; 21, connecting plate; 22, support frame; 221, support plate; 2211, through hole; 222, column; 23, supporting plate; 3, fixing component; 31, bottom beam; 32, fixing plate; 321, fixing part; 3211, mounting hole; 322, mounting part; 3221, weight-reducing hole; 323, reinforcing rib.

[0033] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0034] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0037] A wind turbine mainly consists of three parts: a tower barrel, a nacelle, and an impeller. Among them, the impeller is mainly responsible for converting wind energy into mechanical energy. The impeller mainly includes wind turbine blades and a hub. The wind turbine blades are connected to the hub through their blade roots. The wind turbine blades are one of the core components of a wind power generation unit. If the materials of the wind turbine blades gradually age or are damaged in extreme weather during use, the damaged wind turbine blades need to be replaced in a timely manner.

[0038] Due to the large volume, heavy weight, and long length of the wind turbine blades, their transportation is extremely troublesome. It is necessary to ensure that the wind turbine blades are placed stably to prevent damage during transportation. In the prior art, specific transport vehicles are usually used to transport the wind turbine blades. Special brackets are usually equipped on the vehicles to support the blade roots of the wind turbine blades and are fixed by bolt connection with the blade roots.

[0039] However, the problem with the above technology is that since the wind turbine blades have various models of different sizes, and its bracket can only fix the blade roots of one model of wind turbine blade, only meeting the transportation of one type of wind turbine blade. If it is necessary to transport wind turbine blades of other models, usually the bracket is selected to be replaced to match different models of wind turbine blades, which is extremely troublesome to operate and time-consuming and laborious.

[0040] The present utility model proposes a blade root bracket for a wind turbine blade.

[0041] Please refer to Figure 1 - Figure 4 In an embodiment of the present utility model, for the blade root bracket 100 of the wind turbine blade, the blade root bracket 100 includes a base 1, a bracket 2, and a fixing component 3; the base 1 extends along a first horizontal direction; the bracket 2 is located above the base 1, the bottom of the bracket 2 is detachably connected to the base 1, and the top of the bracket 2 is used to abut against the outer peripheral side of the blade root to support the blade root; there are two fixing components 3 and they are respectively located at both ends of the base 1 along the first horizontal direction. Each fixing component 3 includes a bottom beam 31 and a fixing plate 32. The bottom beam 31 is connected to the base 1, the fixing plate 32 is fixed to the top of the bottom beam 31, the fixing plate 32 is provided with multiple groups of mounting holes 3211. The multiple groups of mounting holes 3211 are spaced apart radially along the end face of the blade root. Each group of mounting holes 3211 includes multiple mounting holes 3211 spaced apart circumferentially along the end face of the blade root. The end face of the blade root supported on the top surface of the bracket 2 is selectively connected to multiple mounting holes 3211 in one of the groups of mounting holes 3211.

[0042] The technical solution of the present utility model uses the bracket 2 to support the blade root, and the bracket 2 and the base 1 are detachably connected. Therefore, if the bracket 2 is damaged during use, only the bracket 2 needs to be replaced, saving costs. Moreover, fixing components 3 are provided at both ends of the base 1, and the fixing plate 32 therein is connected to the end face of the blade root, thereby realizing the fixation of the blade root, facilitating the placement posture of the wind power blade during transportation, and avoiding damage. Specifically, a plurality of groups of mounting holes 3211 are provided in the fixing plate 32. According to the different model sizes of the wind power blades, one of the groups of mounting holes 3211 is selectively selected to be connected to the blade root of the wind power blade. That is to say, without replacing the fixing component 3 or adjusting the position of the fixing component 3, the matching with the blade roots of various wind power blades can be achieved through different groups of mounting holes 3211, with good versatility and time-saving and labor-saving. In addition, the plurality of groups of mounting holes 3211 are also beneficial to reducing the weight of the fixing plate 32, saving materials and facilitating assembly.

[0043] It can be understood that the blade root of the wind power blade is a cylindrical structure to facilitate the engagement with the hub of the wind turbine. Therefore, the end face sizes of the blade roots of different models are also different, that is, the pitch circle diameters are different, and thus the end face sizes and curvatures in contact with the fixing plate 32 are also different. Therefore, by providing a plurality of groups of mounting holes 3211 in the fixing plate 32, each group of mounting holes 3211 is used to match the pitch circle diameters of different models of wind power blades, so that the blade root support 100 is suitable for the transportation support of various models of wind power blades.

[0044] Specifically, in this embodiment, the mounting holes 3211 are all screw holes, and bolts pass through the mounting holes 3211 and are threadedly connected to the end face of the blade root, thereby fastening the blade root to the fixing plate 32 to maintain the placement posture of the wind power blade during transportation, and the bolt connection is extremely convenient during both fixation and disassembly.

[0045] It can be understood that the mounting holes 3211 in each group of mounting holes 3211 are arranged at intervals, and the sizes of the mounting holes 3211 match the screw rods of the bolts, so as to be more firmly connected and prevent the bolts from slipping in the mounting holes 3211.

[0046] It should be noted that the first horizontal direction is the left and right directions as shown in Figure 1 shown.

[0047] During actual use, the base 1 and the bottom beam 31 are both placed parallel to the ground, and the base 1 and the bottom beam 31 are both installed on the vehicle to keep the blade root support 100 fixed.

[0048] In one embodiment, the fixing plate 32 is located on one side of the bracket 2 along the second horizontal direction and is spaced from the bracket 2, and the second horizontal direction is perpendicular to the first horizontal direction.

[0049] Understandably, the fixing plate 32 is located on one side of the bracket 2 along the second horizontal direction, that is, the fixing plate 32 is arranged at the rear side position of the bracket 2, so that the fixing plate 32 and the bracket 2 are relatively more forward in the second horizontal direction, and the wind turbine blade is placed as a whole along the second horizontal direction, so that while the bracket 2 supports the outer periphery of the blade root, the fixing plate 32 can abut against the end face of the blade root, which is convenient for supporting and fixing the blade root.

[0050] It should be noted that the second horizontal direction is the front-back direction as shown in Figure 1 the front and back directions in

[0051] In some other embodiments, a gasket, such as a rubber gasket, etc., is further arranged on the surface of the fixing plate 32 that abuts against the blade root for buffering to avoid damage to the blade root caused by direct contact with the fixing plate 32.

[0052] Specifically, the fixing plate 32 is made of a metal material, including but not limited to steel plates, iron plates, etc., with better stability and long service life.

[0053] In an embodiment, the fixing plate 32 includes a fixing part 321 and an installation part 322 connected vertically. The fixing part 321 is located above the installation part 322. The fixing part 321 is provided with a plurality of groups of installation holes 3211. The installation part 322 is provided with a weight-reducing hole 3221, and the installation part 322 is connected to the bottom beam 31.

[0054] Understandably, the installation part 322 and the fixing part 321 are integrally formed to achieve structural stability. And through the installation part 322, the fixing part 321 can be supported at a certain height, which is convenient for connecting the fixing part 321 with the end of the blade root. Since the installation part 322 is also provided with a weight-reducing hole 3221, the weight of the entire fixing plate 32 can be reduced, which is convenient for the installation of the fixing plate 32, saves materials and reduces costs.

[0055] It should be noted that the vertical direction is the up-down direction as shown in Figure 1 the up and down directions in

[0056] Specifically, in this embodiment, the installation part 322 is connected to the bottom beam 31 by welding, and the structure is more stable.

[0057] In a specific embodiment, the thickness of the fixing plate 32 along the second horizontal direction is uniformly set.

[0058] In an embodiment, the top surface of the fixing part 321 away from the installation part 322 is a curved surface, and the height of the top surface of the fixing part 321 along the vertical direction is gradually increased from the direction close to the bracket 2 to the direction away from the bracket 2.

[0059] Understandably, according to the characteristic that the end face of the blade root is a circular ring, in this embodiment, the shape of the fixing part 321 is set to match a partial area of the end face of the blade root, which facilitates the connection with the end face of the blade root, saves materials, and reduces costs.

[0060] In one embodiment, the fixing assembly 3 further includes a reinforcing rib 323, and the reinforcing rib 323 is connected to the mounting part 322 and the bottom beam 31.

[0061] Understandably, by providing the reinforcing rib 323, the stability of the fixing plate 32 relative to the bottom beam 31 is further enhanced, the structure is more stable, which is more conducive to long-term use, and multiple reinforcing ribs 323 can be provided, and the weight-reducing holes 3221 are located at positions on the mounting part 322 that avoid the reinforcing ribs 323.

[0062] Specifically, the reinforcing rib 323 is connected to the mounting part 322 and the bottom beam 31 by welding.

[0063] In some embodiments, the bottom beam 31 is a profile part, specifically a steel structure with an H-shaped cross-section. This structure has good stability. To further enhance the stability of the bottom beam 31, a reinforcing rib is also provided in the bottom beam 31 to prevent the bottom beam 31 from deforming.

[0064] In one embodiment, the bracket 2 includes a connecting plate 21, a support frame 22, and a support plate 23; the connecting plate 21 extends along the first horizontal direction and is detachably connected to the base 1; the support frame 22 is arranged vertically, and the bottom of the support frame 22 is mounted on the connecting plate 21; the support plate 23 is mounted on the top of the support frame 22.

[0065] Understandably, the bracket 2 is composed of the connecting plate 21, the support frame 22, and the support plate 23, which is convenient for manufacturing and assembling. The support plate 23 is arranged on the top of the support frame 22, and the support plate 23 can be supported at a certain height through the support frame 22 to meet the requirements of the blade root transportation height; the connecting plate 21 is detachably connected to the base 1, which is convenient for the installation, disassembly, and replacement of the entire bracket 2; the support frame 22 is arranged vertically, with better load-bearing effect and reasonable structural design.

[0066] In one embodiment, the support plate 23 is an arc-shaped plate that is concave downward to match the outer peripheral side of the blade root.

[0067] Understandably, the support plate 23 is an arc-shaped plate to match the outer peripheral side of the blade root, which is beneficial for bearing and stabilizing the blade root and maintaining the stability of the blade root during transportation. Moreover, since the entire bracket 2 is detachably connected to the base 1, it can be matched with different models of blade roots by replacing the entire bracket 2. Only by replacing the bracket 2 can the transportation and use of multiple models of blade roots be realized, with high resource utilization rate and reduced manual consumption.

[0068] In one embodiment, the support frame 22 is a support frame with openings at both the top and the bottom. The support frame is composed of a plurality of support plates 221 connected end to end in sequence, and through holes 2211 are formed in each support plate 221.

[0069] As Figure 1 shown, the support frame 22 is a support frame, which includes a plurality of support plates 221 connected end to end in sequence, thereby forming a stable support frame structure. The connection of the support plates 221 can further enhance the stability of each support plate 221, and the structure is also simpler. By forming through holes 2211 in the support plates 221, the weight of the entire bracket 2 can be reduced, which is convenient for replacement and more resource-saving. At the same time, the through holes 2211 are also used for drainage to keep the inside of the support frame free of accumulated water, delay the aging of the support frame material, and facilitate long-term use.

[0070] As Figure 5 shown, in another embodiment, the support frame 22 includes a plurality of columns 222 arranged at intervals in the first horizontal direction.

[0071] It can be understood that stable support can be provided through the columns 222. Especially during transportation, the shaking of the pallet 23 can be effectively prevented, the transportation risk can be reduced, and the columns 222 are also beneficial to the overall assembly of the bracket 2.

[0072] In one embodiment, the base 1 includes a bottom plate 11, a top plate 12, and a plurality of load-bearing plates 13 connecting the bottom plate 11 and the top plate 12. The plurality of load-bearing plates 13 are arranged at intervals in the first horizontal direction; the bracket 2 is connected to the top plate 12 through bolts 14.

[0073] It can be understood that the base 1 is composed of the bottom plate 11, the top plate 12, and the load-bearing plates 13, which is convenient for the fabrication and assembly of the unit. The bottom plate 11 is parallel to the bottom surface, and the bottom surface of the bottom plate 11 is a plane, so it is placed more stably. Supported by the plurality of load-bearing plates 13, the structure is stable, and at the same time, materials are also saved, and resources are rationally utilized; the top plate 12 is supported at a certain height through the load-bearing plates 13, reducing the requirement for the height of the bracket 2, saving the materials required for brackets 2 suitable for different types of blade roots, and improving resource utilization rate.

[0074] The bracket 2 is connected to the top plate 12 through bolts 14, which is convenient for the disassembly and installation of the entire bracket 2, saving time and effort. Specifically, threaded holes are provided in both the top plate 12 and the connecting plate 21 of the bracket 2. Both the top plate 12 and the connecting plate 21 are flat plates, and the contact surface between them is maximized, thereby making the stability of the entire bracket 2 better.

[0075] In one embodiment, the dimension of the bottom plate 11 in the second horizontal direction (such as Figure 4 b in Figure 4in a), and one end of the bottom plate 11 close to the fixed plate 32 is aligned with one end of the top plate 12 close to the fixed plate 32, and the second horizontal direction is perpendicular to the first horizontal direction.

[0076] It can be understood that during transportation, since the entire wind turbine blade is located in front of the fixed plate 32, that is, on the side of the fixed plate 32 facing the bracket 2, the gravity exerted by the blade root on the bracket 2 is biased backward. Therefore, the dimension b is appropriately set to be smaller than the dimension a, and the rear ends of the bottom plate 11 and the fixed plate 32 are aligned, which can not only stably support but also reduce the position space occupied by the bottom plate 11.

[0077] In one embodiment, the bottom surface of the bottom plate 11 is arranged at an angle with the bottom surface of the bottom beam 31.

[0078] It can be understood that when the bottom surface of the bottom plate 11 is arranged at an angle with the bottom beam 31, it can be applicable to wind turbine blades in various attitude modes. For example: when the blade tip of the wind turbine blade is supported so that the blade root end face is perpendicular to the bottom surface, at this time, since the bottom surface of the bottom plate 11 is arranged at an angle with the bottom surface of the bottom beam 31, the bottom surface of the bottom beam 31 is in full contact with the bottom surface, and the bottom surface of the bottom plate 11 is at an angle relative to the ground, so that the bottom beam 31 is used to bear the gravity of the blade root; when the support height of the blade tip of the wind turbine blade is relatively low, the blade root end face will be at a certain angle with the ground. At this time, the bottom surface of the bottom plate 11 is in contact with the ground, and the bottom beam is at an angle relative to the ground, and the angles of the support plate 23 and the fixed plate 32 also change slightly to fit the inclined blade root end face, so as to facilitate the support of the support plate 23 and the connection between the fixed plate 32 and the blade root end face. And at this time, the bottom plate 11 mainly bears the gravity of the blade root. Therefore, by arranging the bottom surface of the bottom plate 11 at an angle with the bottom surface of the bottom beam 31, it can be applicable to the support of various transportation postures of wind turbine blades, with better support effect and better applicability.

[0079] The above is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A root bracket for a wind turbine blade, characterized in that, The root bracket (100) includes: A base (1) that extends along a first horizontal direction; A bracket (2) located above the base (1). The bottom of the bracket (2) is detachably connected to the base (1), and the top of the bracket (2) is used to abut against the outer peripheral side of the blade root to support the blade root; Two fixing components (3) are provided and are respectively located at both ends of the base (1) along the first horizontal direction. Each fixing component (3) includes a bottom beam (31) and a fixing plate (32). The bottom beam (31) is connected to the base (1), and the fixing plate (32) is fixed to the top of the bottom beam (31). The fixing plate (32) is provided with a plurality of groups of mounting holes (3211). The plurality of groups of mounting holes (3211) are spaced apart radially along the end face of the blade root. Each group of mounting holes (3211) includes a plurality of mounting holes (3211) spaced apart circumferentially along the end face of the blade root. The end face of the blade root supported on the top surface of the bracket (2) is selectively connected to a plurality of the mounting holes (3211) in one of the groups of mounting holes (3211).

2. The root bracket of the wind turbine blade according to claim 1, characterized in that, The fixing plate (32) is located on one side of the bracket (2) along a second horizontal direction and is spaced apart from the bracket (2). The second horizontal direction is perpendicular to the first horizontal direction.

3. The root bracket of the wind turbine blade according to claim 1, characterized in that, The fixing plate (32) includes a fixing part (321) and a mounting part (322) connected vertically. The fixing part (321) is located above the mounting part (322). The fixing part (321) is provided with a plurality of groups of the mounting holes (3211). The mounting part (322) is provided with weight-reducing holes (3221). The fixing part (321) is connected to the bottom beam (31).

4. The root bracket of the wind turbine blade according to claim 3, characterized in that, The top surface of the fixing part (321) is a curved surface, and the height of the top surface of the fixing part (321) along the vertical direction is gradually increased from the direction close to the bracket (2) to the direction far from the bracket (2).

5. The root bracket of the wind turbine blade according to claim 3, characterized in that, The fixing component (3) further includes a reinforcing rib (323) connected to the mounting part (322) and the bottom beam (31).

6. The root bracket of the wind turbine blade according to claim 1, characterized in that The bracket (2) includes: A connecting plate (21) that extends along the first horizontal direction and is detachably connected to the base (1); A support frame (22) arranged vertically. The bottom of the support frame (22) is mounted on the connecting plate (21); A support plate (23) mounted on the top of the support frame (22).

7. The root bracket of the wind turbine blade according to claim 6, characterized in that, The support plate (23) is an arc-shaped plate that is recessed downward to match the outer peripheral side of the blade root.

8. The root bracket of the wind turbine blade according to claim 6, wherein The support frame (22) is a support frame with openings at both the top and the bottom. The support frame is composed of a plurality of support plates (221) connected end to end in sequence. Through holes (2211) are provided on each support plate (221); Or, The support frame (22) includes a plurality of columns (222) arranged at intervals along the first horizontal direction.

9. The root bracket of the wind turbine blade according to claim 1, characterized in that, The base (1) includes a bottom plate (11), a top plate (12), and a plurality of load-bearing plates (13) connecting the bottom plate (11) and the top plate (12), and the plurality of load-bearing plates (13) are arranged at intervals along the first horizontal direction; the bracket (2) is connected to the top plate (12) by bolts (14).

10. The root support of the wind turbine blade according to claim 9, characterized in that, The bottom surface of the bottom plate (11) is arranged at an angle with the bottom surface of the bottom beam (31).

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