A lightweight mold structure suitable for large blades

Abstract

The utility model discloses a lightweight mould structure suitable for large -scale vane, including bottom die, top die, mould body, connecting bolt, sealing cover, liquid injection hole, bottom die is opposite with top die and is arranged, and bottom die and top die constitute a mould body, and the mould structure is composed of multiple mould bodies, and the adjacent two mould bodies are installed, fixed together with connecting bolt, and the outermost two ends of mould structure are equipped with the sealing cover of screw mounting, and every mould body top is provided with liquid injection hole, the utility model discloses reasonable in design, and multiple mould body design can increase or reduce according to the condition of vane number to adapt to different production requirement.

Description

Technical Field

[0001] This utility model belongs to the field of molds, and in particular relates to a lightweight mold structure suitable for large blades. Background Technology

[0002] As clean energy gains increasing attention, wind energy is being developed and used more and more. Wind turbine blades are needed to generate electricity. Wind turbine blades are relatively large. In order to improve the quality and production efficiency of the blades, molds are used for production. However, the length of existing lightweight molds for large blades cannot be quickly changed according to actual conditions, which makes them less adaptable. Utility Model Content

[0003] The purpose of this invention is to provide a lightweight mold structure suitable for large blades to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A lightweight mold structure suitable for large blades includes a bottom mold, a top mold, a mold body, connecting bolts, a sealing cap, and a liquid injection hole. The bottom mold and the top mold are arranged opposite to each other and form a mold body. The mold structure is composed of multiple mold bodies. Adjacent mold bodies are installed and fixed together by connecting bolts. The outermost two ends of the mold structure are provided with sealing caps installed by screws. Each mold body has a liquid injection hole on its top.

[0005] Preferably, the bottom mold has a first mold groove and multiple integrally formed columns. The bottom of the top mold has a second mold groove. The first mold groove and the second mold groove form a blade shape. Nuts are welded to the side walls of the bottom mold and the top mold. Connecting bolts are connected to the nuts to connect two adjacent mold bodies into a whole. The top mold has a groove. The columns and the groove are on the same vertical line. After the bottom mold and the top mold are connected, the columns enter the groove.

[0006] Preferably, a cavity is provided above the first mold groove. The cavity is connected to the first mold groove by a support rod. Multiple support rods are symmetrically arranged below the cavity. The cavity is an inflatable airbag filled with air.

[0007] Compared with the prior art, the present invention has the following advantages: the present invention is reasonably designed; the mold body and connecting bolts can be increased or decreased in different quantities according to the actual situation, thereby adapting to the manufacturing needs of blades of different sizes and improving adaptability; the column and groove can realize the tight connection between the top mold and the bottom mold, and the cavity in the first mold groove can realize the hollow design of part of the blade, thereby realizing the lightweighting of the blade. Attached Figure Description

[0008] Figure 1This is a schematic diagram of the lightweight mold structure applicable to large blades according to this utility model.

[0009] Figure 2 This is an exploded view of the bottom mold and top mold of the lightweight mold structure applicable to large blades according to this utility model.

[0010] Figure 3 This is a schematic diagram of the back of the top mold of the lightweight mold structure applicable to large blades according to this utility model. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] like Figures 1-3 As shown, a lightweight mold structure suitable for large blades includes a bottom mold 1, a top mold 2, a mold body 3, connecting bolts 4, a sealing cap 5, and a liquid injection hole 6. The bottom mold 1 and the top mold 2 are arranged opposite to each other, forming a mold body 3. The mold structure is composed of multiple mold bodies 3. Adjacent mold bodies 3 are installed and fixed together by connecting bolts 4. The outermost ends of the mold structure are provided with screw-mounted sealing caps 5. Each mold body 3 has a liquid injection hole 6 at its top, through which the blade material enters the mold body. The bottom mold 1 has a first mold groove 7 and multiple integrally formed columns 8. The bottom of the top mold 2 has a second mold groove 12. The first mold groove 7 and the second mold groove 12 are connected. The molds are arranged in the shape of a blade. Nuts 9 are welded to the side walls of the bottom mold 1 and the top mold 2. The connecting bolts 4 are connected to the nuts 9 to connect the two adjacent mold bodies 3 into a whole. The top mold 2 has a groove 13. The column 8 is on the same vertical line as the groove 13. After the bottom mold 1 and the top mold 2 are connected, the column 8 enters the groove 13. To ensure the firmness, a weight is applied above the top mold. A cavity 10 is provided above the first mold groove 7. The cavity 10 is connected to the first mold groove 7 by a support rod 11. Multiple support rods 11 are symmetrically arranged below the cavity 10. The support rods are made of the same material as the blade and form part of the blade after casting. The cavity 10 is an inflatable airbag filled with air. The cavity is made of heat-resistant and corrosion-resistant polymer material.

[0013] The working principle of this utility model is as follows: Select different numbers of mold bodies according to the required blade length. Two adjacent mold bodies are connected together by connecting bolts and nuts. The casting material is injected into the mold body through the injection hole. The cavity is located in the blade after casting, which can reduce the weight. After cooling, the top mold and bottom mold are separated and the blade in the first mold groove and the second mold groove are taken out.

[0014] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A lightweight mold structure suitable for large blades, comprising a bottom mold (1), a top mold (2), a mold body (3), connecting bolts (4), a sealing cap (5), and a liquid injection hole (6), characterized in that, The bottom mold (1) and the top mold (2) are arranged opposite to each other. The bottom mold (1) and the top mold (2) form a mold body (3). The mold structure is composed of multiple mold bodies (3). Two adjacent mold bodies (3) are installed and fixed together by connecting bolts (4). The outermost two ends of the mold structure are provided with sealing caps (5) installed by screws. Each mold body (3) has an injection hole (6) on its top.

2. The lightweight mold structure suitable for large blades according to claim 1, characterized in that, The bottom mold (1) has a first mold groove (7) and multiple integrally formed columns (8). The bottom of the top mold (2) has a second mold groove (12). The first mold groove (7) and the second mold groove (12) form a blade shape. Nuts (9) are welded on the side walls of the bottom mold (1) and the top mold (2). The connecting bolts (4) are connected to the nuts (9) to connect the two adjacent mold bodies (3) into a whole. The top mold (2) has a groove (13). The columns (8) and the groove (13) are on the same vertical line. After the bottom mold (1) and the top mold (2) are connected, the columns (8) enter the groove (13).

3. A lightweight mold structure suitable for large blades according to claim 2, characterized in that, A cavity (10) is provided above the first mold groove (7). The cavity (10) is connected to the first mold groove (7) by a support rod (11). Multiple support rods (11) are symmetrically arranged below the cavity (10). The cavity (10) is an inflatable airbag, and air is injected inside.

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