Special spreading device for wind power blade

Abstract

The utility model belongs to the technical field of wind power blades, and particularly discloses a special spreading device for wind power blades, which comprises a support and a plurality of groups of spreading mechanisms. Each cloth pulling mechanism comprises an axial limiting assembly and a circumferential limiting assembly, the circumferential limiting assembly is used for preventing the circumferential displacement of the cylinder, and the axial limiting assembly is used for preventing the axial displacement of the cylinder; the circumferential limiting assembly comprises two circumferential limiting structures, the two circumferential limiting structures are located on the two sides of the support correspondingly, each circumferential limiting structure comprises four limiting pieces installed on the support, the four limiting pieces are arranged in a rectangular shape, a channel used for containing a center rod on a cylinder is formed among the four limiting pieces, and the center rod can rotate in the channel. The periphery of the center rod makes contact with the outer sides of the four sets of limiting pieces. And the number of the corresponding cloth pulling mechanisms can be arranged according to a specific use scene, so that the cloth roll replacement frequency is reduced, and the laying efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade technology, and in particular relates to a special fabric spreading device for wind turbine blades. Background Technology

[0002] Wind turbine blades are an important component of wind turbines, and their structure mainly consists of a shell, a main beam, and a web. The shell and main beam are made of composite materials such as fiberglass and resin. During the molding process, fiberglass cloth needs to be laid on the mold. When laying fiberglass, the fiberglass roll is placed on a cloth-laying fixture and manually dragged and laid. After the fiberglass cloth is used up, the operation must be stopped to replace it with a new fiberglass roll on the cloth-laying fixture. This process is repeated until the amount of fiberglass cloth laid meets the technical requirements.

[0003] Currently, a single 90M+ wind turbine blade shell requires approximately 10 tons of fiberglass cloth, all of which is laid manually using a round pipe to drag the cloth. The main beam, however, can have 50-80 layers of fiberglass, with each layer ranging from 30-70 meters in length. A single main beam requires more than 20 rolls of fiberglass cloth, all of which are placed manually onto the cloth-laying fixture. Existing fixtures can only hold a maximum of two rolls of cloth at a time, necessitating frequent replacements during installation, resulting in low efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a special fabric laying device for wind turbine blades, so as to solve the problem that the existing fabric laying fixture can only store a maximum of 2 rolls of fiberglass cloth at the same time, which leads to the need to replace the fiberglass cloth rolls multiple times during the laying process, resulting in low efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a special fabric spreading device for wind turbine blades, comprising a support and multiple sets of fabric spreading mechanisms installed within the support, wherein the fabric spreading mechanisms do not interfere with each other; each set of fabric spreading mechanisms includes an axial limiting component and a circumferential limiting component, wherein the circumferential limiting component is used to prevent circumferential displacement of the cylinder, and the axial limiting component is used to prevent axial displacement of the cylinder; the axial limiting component includes two sets of axial limiting structures, which are respectively located on both sides of the support, and are used to abut against both sides of the cylinder or fabric roll; the circumferential limiting component includes two sets of circumferential limiting structures, which are respectively located on both sides of the support, wherein each set of circumferential limiting structures includes four sets of limiting members installed on the support, the four sets of limiting members are arranged in a rectangular shape, and a channel for placing a central rod on the cylinder is formed between the four sets of limiting members, wherein the central rod can rotate within the channel, and the outer periphery of the central rod contacts the outer side of the four sets of limiting members.

[0006] Furthermore, the bracket is provided with a first limiting plate and a second limiting plate. The first limiting plate is fixed on the bracket, and the first limiting plate and the second limiting plate are detachably connected. Two sets of the limiting components are installed on the first limiting plate, and the other two sets of the limiting components are installed on the second limiting plate.

[0007] Furthermore, the axial limiting structure includes a clamping plate and a driving part, the driving part being mounted on the first limiting plate or the second limiting plate, and the driving part being used to drive the clamping plate closer to or away from the cylinder.

[0008] Furthermore, the driving unit includes a driving threaded rod and a mounting block. The mounting block is fixed on the clamping plate. The first limiting plate or the second limiting plate is provided with a threaded hole. The driving threaded rod is threadedly connected in the threaded hole, and one end of the driving threaded rod is rotatably connected to the mounting block.

[0009] Furthermore, a handle is provided on the side of the drive threaded rod away from the mounting block.

[0010] Furthermore, the bottom of the bracket is equipped with drive wheels.

[0011] Furthermore, the bracket has a base at its bottom, and the bottom of the base is higher than the bottom of the drive wheel.

[0012] Furthermore, the drive wheel is a locking roller.

[0013] Furthermore, the limiting component adopts a ball bearing, and a central shaft is connected to the ball bearing. The ball bearing is rotatable, and the central shaft is fixed on the first limiting plate and the second limiting plate.

[0014] Furthermore, a lifting ring is provided at the top of the bracket.

[0015] The working principle of this technical solution is as follows: the number of fabric pulling mechanisms can be arranged according to the specific application scenario. Fabric rolls are stored at each corresponding fabric pulling mechanism, and their operating positions are aligned with the fabric pulling direction for fabric pulling operations. The fabric rolls are stored as follows: the central rods on both sides of the cylinder are placed at the two limiting members of the first limiting plate, and then the second limiting plate is fixed to the first limiting plate, so that the circumference of the central rods is within the channel formed by the four sets of limiting members. Turning the handle causes the drive threaded rod to rotate, and the drive threaded rod moves axially, thereby causing the clamping plates to move axially. The clamping plates on both sides clamp and limit the cylinder and fabric roll, preventing axial movement.

[0016] After the fabric roll at this workstation is used up, the fabric can be pulled by dragging the corresponding fabric rolls from other remaining workstations. This process continues until all fabric rolls are used up before the fabric rolls need to be replaced. Multiple fabric pulling mechanisms can store multiple fabric rolls and can be easily switched to different workstations via locking rollers.

[0017] The beneficial effects of this technical solution are as follows:

[0018] ① In this technical solution, the number of fabric laying mechanisms can be arranged according to the specific application scenario, thereby reducing the frequency of fabric roll replacement and improving laying efficiency.

[0019] ②The axial and circumferential limiting components can limit the circumferential and axial movement of the fabric roll and cylinder, preventing the fabric roll from shifting during use.

[0020] ③ The locking roller adjusts the orientation and position of the workstation where the fabric pulling operation is to be performed to a position where the fabric pulling operation can be performed. After switching to different workstations, the locking roller can lock the bracket to prevent displacement when using the fabric roll.

[0021] ④ When the locking rollers fail or fall off, the base can prevent tipping and effectively prevent the bracket from tipping over. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the special fabric spreading device for wind turbine blades according to this utility model during use;

[0023] Figure 2 for Figure 1 Side view;

[0024] Figure 3 for Figure 1 Schematic diagram of the mid-support structure;

[0025] Figure 4 This is a schematic diagram of the installation structure of the bracket and the fabric pulling mechanism;

[0026] Figure 5 This is a schematic diagram of the fabric pulling mechanism. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method:

[0028] The reference numerals in the accompanying drawings include: bracket 1, cloth roll 2, lifting ring 3, locking roller 4, base 5, center rod 6, clamping plate 7, through hole 8, first limiting plate 9, second limiting plate 10, handle 11, drive threaded rod 12, mounting block 13, limiting component 14, and center shaft 15.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] The basic implementation examples are as follows: Figure 1-5 As shown: A special fabric-laying device for wind turbine blades includes a bracket 1 and multiple sets of fabric-laying mechanisms (at least three sets, seven sets in this embodiment) installed within the bracket 1. A lifting ring 3 is provided at the top of the bracket 1. Drive wheels, which are locking rollers 4, are provided around the bottom of the bracket 1. A base 5 is provided at the bottom of the bracket 1, with the bottom of the base 5 higher than the bottom of the drive wheels. When the locking rollers 4 fail or fall off, the base 5 can prevent tipping, effectively preventing the bracket 1 from overturning.

[0031] The filibustering agencies do not interfere with each other, such as Figure 5 As shown, each fabric pulling mechanism includes an axial limiting assembly and a circumferential limiting assembly. The circumferential limiting assembly is used to prevent circumferential displacement of the cylinder, and the axial limiting assembly is used to prevent axial displacement of the cylinder. The axial limiting assembly includes two sets of axial limiting structures, which are located on both sides of the bracket 1. The two sets of axial limiting structures are used to press against both sides of the cylinder or fabric roll 2.

[0032] The circumferential limiting assembly includes two sets of circumferential limiting structures, located on both sides of the bracket 1. Each set of circumferential limiting structures includes four sets of limiting members 14 arranged in a rectangle, forming a channel between them for placing the central rod 6 on the cylinder. The central rod 6 can rotate within the channel, and its outer periphery contacts the outer side of the four sets of limiting members 14. Specifically, the bracket 1 is provided with a first limiting plate 9 and a second limiting plate 10. The first limiting plate 9 is fixed to the bracket 1, and the second limiting plate 10 is located above the first limiting plate 9. The first limiting plate 9 and the second limiting plate 10 are detachably connected. Two sets of limiting members 14 are installed on the first limiting plate 9, and the other two sets of limiting members 14 are installed on the second limiting plate 10. The limiting members 14 use ball bearings, and a central shaft 15 is connected to the ball bearings. The ball bearings can rotate, and the central shaft 15 is fixed to the first limiting plate 9 and the second limiting plate 10.

[0033] The axial limiting structure includes a clamping plate 7 and a driving unit. The driving unit is mounted on a first limiting plate 9 or a second limiting plate 10 (in this embodiment, it is mounted on the first limiting plate 9). The driving unit is used to drive the clamping plate 7 closer to or further away from the cylinder. The driving unit includes a driving threaded rod 12 and a mounting block 13. The mounting block 13 is fixed on the clamping plate 7. The first limiting plate 9 or the second limiting plate 10 has a threaded hole (in this embodiment, it is provided on the second limiting plate 10). The driving threaded rod 12 is threaded into the threaded hole, and one end of the driving threaded rod 12 is rotatably connected to the mounting block 13. The clamping plate 7 has a through hole 8 for the center rod 6 to pass through. A handle 11 is provided on the side of the driving threaded rod 12 away from the mounting block 13.

[0034] The specific implementation process is as follows:

[0035] The number of fabric pulling mechanisms can be arranged according to the specific usage scenario. Fabric rolls 2 are stored at each corresponding fabric pulling mechanism, and their operating positions are aligned with the fabric pulling direction for fabric pulling operations. The method of storing fabric rolls 2 is as follows: the central rods 6 on both sides of the cylinder are placed at the two limiting members 14 of the first limiting plate 9, and then the second limiting plate 10 is fixed to the first limiting plate 9, so that the four sides of the central rods 6 are located within the channel formed by the four sets of limiting members 14. Rotating the handle 11 causes the drive threaded rod 12 to rotate, and the drive threaded rod 12 moves axially while rotating, thereby causing the clamping plates 7 to move axially. The clamping plates 7 on both sides clamp and limit the cylinder and fabric rolls 2, preventing axial movement.

[0036] After the fabric roll 2 at this operating station is used up, the fabric can be pulled by dragging the corresponding fabric roll 2 at other remaining stations; this continues until all fabric rolls 2 are used up before the fabric roll 2 needs to be replaced. Multiple fabric pulling mechanisms can store multiple fabric rolls 2 and can be easily switched to different stations through locking rollers 4.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for stretching a fabric for a wind turbine blade, characterized in that: The device comprises a support (1) and a plurality of groups of cloth stretching mechanisms installed in the support (1), and the cloth stretching mechanisms do not interfere with each other; each group of the cloth stretching mechanisms comprises an axial limiting assembly and a circumferential limiting assembly, the circumferential limiting assembly is used to prevent the circumferential displacement of the cylinder, and the axial limiting assembly is used to prevent the axial displacement of the cylinder; the axial limiting assembly comprises two groups of axial limiting structures, the two groups of axial limiting structures are respectively located on the two sides of the support (1), and the two groups of axial limiting structures are used to abut against the two sides of the cylinder or cloth roll (2) from both sides; the circumferential limiting assembly comprises two groups of circumferential limiting structures, the two groups of circumferential limiting structures are respectively located on the two sides of the support (1), each group of the circumferential limiting structures comprises four groups of limiting members (14) installed on the support (1), the four groups of limiting members (14) are arranged in a rectangular shape, a channel for placing a central rod (6) on the cylinder is formed between the four groups of limiting members (14), the central rod (6) can rotate in the channel, and the outer periphery of the central rod (6) is in contact with the outer side of the four groups of limiting members (14).

2. The device for stretching wind turbine blade according to claim 1, characterized in that: The support (1) is provided with a first limiting plate (9) and a second limiting plate (10), the first limiting plate (9) is fixed on the support (1), and the first limiting plate (9) and the second limiting plate (10) are detachably connected; two groups of the limiting members (14) are installed on the first limiting plate (9), and the other two groups of the limiting members (14) are installed on the second limiting plate (10).

3. A wind turbine blade dedicated pulling device according to claim 2, characterized in that: The axial limiting structure comprises a clamping plate (7) and a driving part, the driving part is installed on the first limiting plate (9) or the second limiting plate (10), and the driving part is used to drive the clamping plate (7) to move close to or away from the cylinder.

4. The device for stretching wind turbine blade according to claim 3, characterized in that: The driving part comprises a driving threaded rod (12) and a mounting block (13), the mounting block (13) is fixed on the clamping plate (7), the first limiting plate (9) or the second limiting plate (10) is provided with a threaded hole, the driving threaded rod (12) is threadedly connected in the threaded hole, and one end of the driving threaded rod (12) is rotationally connected with the mounting block (13).

5. A wind turbine blade specific spreading device according to claim 4, characterized in that: A handle (11) is arranged on the side, away from the mounting block (13), of the driving threaded rod (12).

6. The device for laying up wind turbine blade according to claim 1, characterized in that: The bottom of the support (1) is provided with a driving wheel.

7. A wind turbine blade specific spreading device according to claim 6, characterized in that: The bottom of the support (1) is provided with a base (5), and the bottom of the base (5) is higher than the bottom of the driving wheel.

8. A wind turbine blade dedicated pulling device according to claim 6, characterized in that: The driving wheel is a locking roller (4).

9. The device for laying up wind turbine blade according to claim 2, characterized in that: The limiting member (14) is a ball bearing, a central shaft (15) is connected to the ball bearing, the ball bearing can rotate, and the central shaft (15) is fixed on the first limiting plate (9) and the second limiting plate (10).

10. The device for laying up wind turbine blade according to claim 1, characterized in that: The top of the support (1) is provided with a lifting ring (3).

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