Locating tool for L-shaped connecting plate of wind power blade

Abstract

The utility model belongs to the technical field of wind power blades, and particularly discloses a wind power blade L-shaped connecting plate positioning tool which comprises a main body frame and a positioning plate. The main body frame comprises an inverted T-shaped frame and a telescopic frame, and three end parts of the inverted T-shaped frame are respectively connected with the blade flanges; the telescopic frame is fixed to the inverted-T-shaped frame, the positioning plate is fixed to the side, away from the inverted-T-shaped frame, of the telescopic frame, a positioning hole matched with the outer contour of the L-shaped connecting plate is formed in the positioning plate, and the positioning hole directly faces the L-shaped connecting plate of the blade manhole plate. The telescopic connecting rod can drive the positioning plate to move towards the blade manhole plate and be attached to the blade manhole plate. According to the tool, the assembly efficiency can be improved, the labor cost can be reduced, and the blade assembly efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine blade technology, and in particular relates to a positioning fixture for the L-connecting plate of a wind turbine blade. Background Technology

[0002] Wind turbine blades are the core components of wind turbine generators, converting natural wind energy into electrical energy. They are a primary indicator of a wind turbine's design and technological level. The working principle of wind turbine blades is to utilize wind energy, generating mechanical energy through blade rotation, and ultimately converting that mechanical energy into electrical energy. The L-shaped connecting plate is a crucial component of the wind turbine generator, playing an indispensable role. Its main function is to connect the wind turbine blades to the turbine's main body. Named for its L-shaped shape, this connecting plate transmits the rotational torque generated by the blades to the main shaft under wind power, serving as a vital connection between the blades and the hub.

[0003] Currently, when installing L-connector plates, they are typically hoisted and then assembled directly by workers. Because positioning fixtures are not used to position the L-connector plates during installation, the installation efficiency is relatively low. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning fixture for the L-connecting plate of wind turbine blades, so as to solve the problem that the installation efficiency is relatively low because the positioning fixture is not used to position the L-connecting plate during the current installation process.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a positioning fixture for an L-shaped connecting plate of a wind turbine blade, comprising a main frame and a positioning plate; the main frame includes a U-shaped frame and a telescopic frame, the three ends of the U-shaped frame being connected to the blade flange respectively; the telescopic frame is fixed on the U-shaped frame, and the positioning plate is fixed on the side of the telescopic frame away from the U-shaped frame; the positioning plate is provided with positioning holes that match the outer contour of the L-shaped connecting plate, and the positioning holes are directly opposite the L-shaped connecting plate of the blade manhole plate; the telescopic connecting rod can drive the positioning plate to move toward the blade manhole plate and fit against the blade manhole plate.

[0006] Furthermore, each of the three ends of the ⊥-shaped frame is provided with two sets of positioning components. The positioning components of the two ends on the horizontal sides are located on the upper and lower sides of the blade mold seam, respectively, and the two sets of positioning components of the end on the vertical side are located on the two sides of the vertical side where the blade flange passes through the center.

[0007] Furthermore, each of the positioning components includes a positioning post, the positioning post being sized to match the connection hole of the blade flange, and the positioning post being inserted into the connection hole for positioning.

[0008] Furthermore, the positioning post is made of nylon.

[0009] Furthermore, the telescopic frame includes four sets of telescopic connecting rods, which are located at the four corners of the positioning plate.

[0010] Furthermore, the ⊥-shaped frame is welded from aluminum alloy rectangular tubing.

[0011] The working principle of this technical solution is as follows: During the installation of the L-connecting plate, the six sets of positioning pins are first inserted into the connecting holes of the blade flange. The telescopic connecting rod is moved to make the positioning plate at the front end of the tooling press against the manhole plate of the blade. After the installation hole is opened on the manhole plate with a tool, the L-connecting plate is installed to achieve the assembly requirements of quickly positioning and installing the L-connecting plate.

[0012] The beneficial effects of this technical solution are as follows:

[0013] ①This tooling can improve assembly efficiency and reduce labor costs, thereby accelerating the assembly efficiency of blades.

[0014] ②Using nylon columns as positioning columns can prevent the main body of the tooling from making hard contact with the end face of the steel flange during operation, thus avoiding damage to the galvanized layer of the steel flange end face.

[0015] ③ There are two sets of positioning pins on the upper and lower sides of the blade mold seam, which fit into the connecting holes of the blade flange. There are also positioning pins on both sides of the vertical side of the blade flange passing through the center, so that this tooling can be accurately positioned. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positioning fixture for the L-connecting plate of a wind turbine blade according to the present invention.

[0017] Figure 2 This is a schematic diagram showing the connection between this tooling and the blade assembly. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] The reference numerals in the accompanying drawings include: ⊥ frame 1, telescopic frame 2, blade flange 3, positioning plate 4, positioning post 5, positioning hole 6, telescopic connecting rod 7, blade mold closing seam 8.

[0020] 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.

[0021] The basic implementation examples are as follows: Figure 1-2 As shown: A positioning fixture for the L-shaped connecting plate of a wind turbine blade includes a main frame and a positioning plate 4. The main frame includes a U-shaped frame 1 and a telescopic frame 2. The U-shaped frame 1 is welded from aluminum alloy rectangular tubing. The three ends of the U-shaped frame 1 are respectively connected and positioned to the blade flange 3. The telescopic frame 2 is fixed to one side of the U-shaped frame 1, and the positioning plate 4 is fixed to the side of the telescopic frame 2 away from the U-shaped frame 1. The positioning plate 4 is provided with positioning holes 6 that match the outer contour of the L-shaped connecting plate, and the positioning holes 6 are directly opposite the L-shaped connecting plate of the blade manhole plate. The telescopic connecting rod 7 can drive the positioning plate 4 to move towards the blade manhole plate and fit against the blade manhole plate.

[0022] The ⊥-shaped frame 1 has two sets of positioning components at each of its three ends. The positioning components at the two ends on the horizontal sides are located on the upper and lower sides of the blade mold seam 8, respectively. The two sets of positioning components at the two ends on the vertical sides are located on the vertical side of the blade flange 3 passing through the center. Each positioning component includes a positioning post 5. The positioning post 5 is sized to match the connection hole of the blade flange 3 and is used to insert into the connection hole for positioning. The positioning post 5 is made of nylon to prevent the fixture body from making hard contact with the steel flange end face during operation, thus avoiding damage to the galvanized layer of the steel flange end face. The positioning post 5 is fixed to the ⊥-shaped frame 1 with bolts.

[0023] The telescopic frame 2 includes four sets of telescopic connecting rods 7, which are located at the four corners of the positioning plate 4. Each telescopic connecting rod 7 consists of an inner rod, an outer rod, bolts, and nuts. The inner rod is slidably connected to the outer rod. The inner rod has a fixing hole, and both sides of the outer rod have slotted holes that align with the fixing holes. The length direction of the slotted holes is consistent with the length direction of the outer rod. After the inner rod is pulled out to the appropriate length from the outer rod, the bolt passes through the slotted hole, the fixing hole, and the slotted hole on one side, and then connects to the nut, thus fixing the outer rod and the inner rod in place with the head of the nut and bolt.

[0024] The specific implementation process is as follows:

[0025] During the installation of the L-connecting plate, first insert the six sets of positioning pins 5 into the connecting holes of the blade flange 3, move the telescopic connecting rod 7 to make the positioning plate 4 at the front end of the tooling abut against the blade manhole plate, then use bolts and nuts to fix the telescopic connecting rod 7, and after using tools to make the installation holes in the manhole plate, carry out the installation of the L-connecting plate to achieve the assembly requirements of quick positioning and installation of the L-connecting plate.

[0026] 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.

[0027] 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. 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 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 wind turbine blade L-connector plate positioning tool, characterized by: The utility model relates to a blade positioning device, including main body frame and positioning plate (4), the main body frame includes ⊥ type frame (1) and telescopic frame (2), three ends of ⊥ type frame (1) are connected with blade flange (3) respectively, telescopic frame (2) is fixed on ⊥ type frame (1), positioning plate (4) is fixed on the side of telescopic frame (2) away from ⊥ type frame (1), positioning plate (4) is equipped with the positioning hole (6) with the L connecting plate outer contour matching, positioning hole (6) is opposite with the L connecting plate of blade manhole plate, telescopic frame (2) includes telescopic connecting rod (7), and telescopic connecting rod (7) can drive positioning plate (4) to move towards blade manhole plate and is attached with blade manhole plate.

2. A wind turbine blade L-connector positioning tool according to claim 1, characterized in that: The three ends of ⊥ type frame (1) are equipped with two groups of positioning components, and the positioning components of the two ends of the horizontal two sides are located on the upper and lower sides of blade mold joint (8) respectively, and the two groups of positioning components of the vertical side end are located on the two sides of the vertical side through the center of blade flange (3).

3. A wind turbine blade L-connector positioning tool according to claim 2, characterized in that: Each group of positioning components includes positioning column (5), the size of the connecting hole of positioning column (5) and blade flange (3) matches, and positioning column (5) is used to be inserted into the connecting hole and is positioned.

4. A wind turbine blade L-connector positioning tool according to claim 3, characterised in that: Positioning column (5) adopts nylon column.

5. The wind turbine blade L-connector positioning tool of claim 1, wherein: Telescopic frame (2) includes four groups of telescopic connecting rods (7), and the four groups of telescopic connecting rods (7) are located at the positions of the four corners of positioning plate (4) respectively.

6. A wind turbine blade L-connector positioning tool according to claim 1, characterized in that: ⊥ type frame (1) is welded by aluminium alloy rectangular tube.

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