Low-cost green vertical-axis wind turbine blade

Abstract

The utility model discloses a low-cost green vertical-axis wind turbine blade, which relates to the technical field of wind power generation and comprises an outer shell, a reinforcing support part is mounted in the middle of the inside of the outer shell, a first connecting frame is mounted on one side of the reinforcing support part, an end support part is mounted on one side of the first connecting frame, and a second connecting frame is mounted on the other side of the end support part. A second connecting frame body is installed on the other side of the reinforcing supporting piece, a tip block is installed on one side of the second connecting frame body, connecting pieces are installed at the upper end and the lower end of the reinforcing supporting piece, the reinforcing supporting piece comprises a supporting frame, and limiting frames are installed at the upper end and the lower end of the supporting frame; the limiting frame and the supporting frame form an I-shaped structure, and a second limiting groove is formed in the outer wall of the limiting frame. The problems that an existing wind driven generator blade is internally composed of multiple sets of carbon fiber plate bodies, installation by a user is not convenient, and the cost of the whole blade is increased are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field, concretely is a kind of low-cost green vertical axis wind turbine blade. BACKGROUND

[0002] With the increasing demand for clean energy around the world, wind power generation, as a kind of green and environmentally friendly renewable energy generation method, has been widely applied and developed. Vertical axis wind turbine has the advantages of not being affected by wind direction, easy installation and maintenance, etc., and has great application potential in some specific scenarios.

[0003] For example, the publication number: CN206129494U, named "20KW vertical axis wind turbine blade", including shell and web, the shell constitutes the appearance of blade, the shell includes windward face shell body, leeward face shell body and end plate, the windward face shell body and leeward face shell body are buckled and fixed to become blade cylinder, end plate is fixed at the upper and lower ends of the blade cylinder;Web is arranged in the shell, one side of the web is fixed to the inner wall of the windward face shell body, the other side is fixed to the inner wall of the leeward face shell body, the web is supported on the inner wall of the shell, so that the shell is supported and shaped;The shell is made of carbon fiber material.

[0004] The above-mentioned existing wind turbine blade is composed of multiple groups of carbon fiber plate bodies, which is not only inconvenient for users to install, but also increases the cost of the whole blade;Therefore, it does not meet the existing demand, and a low-cost green vertical axis wind turbine blade is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of low-cost green vertical axis wind turbine blade to solve the problem that the existing wind turbine blade is composed of multiple groups of carbon fiber plate bodies in the above background art, which is not only inconvenient for users to install, but also increases the cost of the whole blade.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of low-cost green vertical axis wind turbine blade, comprising: shell body, reinforcing support is installed at the middle position inside the shell body, first connecting frame body is installed on one side of the reinforcing support, end support is installed on one side of the first connecting frame body, second connecting frame body is installed on the other side of the reinforcing support, sharp end block is installed on one side of the second connecting frame body, connecting sheet is installed at the upper and lower ends of the reinforcing support.

[0007] Preferably, the reinforcing support includes a support frame, limit frame is installed at the upper and lower ends of the support frame, and the limit frame and the support frame form an I-shaped structure.

[0008] Preferably, a second limiting groove is formed in the outer wall of the limiting frame, and the connecting piece is fixed in the second limiting groove by a rivet.

[0009] Preferably, the end support is an arc-shaped solid structure, the upper and lower surfaces of the end support are provided with first limiting grooves, and one end of the connecting piece is fixed in the first limiting groove by a rivet.

[0010] Preferably, the tip block is triangular, the upper and lower surfaces of the tip block are provided with third limiting grooves, and the other end of the connecting piece is fixed in the third limiting groove by a rivet.

[0011] Preferably, the connecting piece is made of glass fiber or bamboo fiber.

[0012] Preferably, the outer shell is made of stainless steel.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1), in the utility model, the outer shell is used for playing the effect of external protection, the inside of the outer shell mainly is by reinforcing support, tip block, end support and connecting piece, wherein, reinforcing support acts in the middle position, through the first connecting frame body and the second connecting frame body on its both sides can respectively with end support, tip block combination, can effectively improve the inside connection stability, further improve the firmness of the blade, the end support is arc-shaped solid structure, it can improve the strength of the end, and makes the end to be arc structure, more fit vertical axial wind power, the tip block is triangular structure, since the tip block is lower than the end support, and still is equipped with connecting piece between the both and connects, the connecting piece forms the connecting surface between the both, makes the whole blade modeling more conducive to vertical axial wind power generation, the above structure, through reinforcing support, end support, tip block and connecting piece form the inside support structure, has improved the inside strength, compared with carbon fiber, its cost is lower.

[0015] (2), the support structure composed of the support frame and the limiting frame is not only used for connecting the reinforcing support and the tip block, but also used for limiting the connecting piece, specifically, the connecting piece is fixed in the second limiting groove during installation, and the second limiting groove is fixed with the connecting piece by rivets, the installation strength of the connecting piece is improved, when the connecting piece is limited in the second limiting groove, one end of the connecting piece is fixed in the first limiting groove at the end support, and the other end of the connecting piece is fixed in the third limiting groove of the tip block, the two ends of the connecting piece are limited by the first limiting groove and the third limiting groove, and the connecting combination strength of the connecting piece, the end support and the tip block is further improved by the rivet fixing mode, the above structure is simple to install, and the two ends and the intermediate position of the connecting piece are limited by the limiting groove structure, the strength of the connecting piece is improved, and the connecting strength of the above structure is also improved, and the service life of the blade is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the utility model;

[0017] Figure 2 It is the reinforcing support connecting structure schematic diagram of the utility model;

[0018] Figure 3 It is the connecting piece structure schematic diagram of the utility model;

[0019] Figure 4 It is the shell structure schematic diagram of the utility model;

[0020] In the drawing: 1, first connecting frame body; 2, end support; 201, first limiting groove; 3, reinforcing support; 301, support frame; 302, limiting frame; 303, second limiting groove; 4, second connecting frame body; 5, tip block; 501, third limiting groove; 6, connecting piece; 7, shell. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figures 1-4The utility model provides a kind of low-cost green vertical axis wind turbine blade, comprising: shell body 7, reinforcing support piece 3 is installed at the middle position inside shell body 7, end support 2 is arc solid structure, first connecting frame body 1 is installed on the side of reinforcing support piece 3, end support 2 is installed on the side of first connecting frame body 1, second connecting frame body 4 is installed on the other side of reinforcing support piece 3, sharp end block 5 is installed on the side of second connecting frame body 4, sharp end block 5 is triangular modeling, connecting piece 6 is installed on the upper and lower ends of reinforcing support piece 3, reinforcing support piece 3 includes support frame 301, limit frame 302 is installed on the upper and lower ends of support frame 301, limit frame 302 and support frame 301 form H-shaped structure;

[0023] Shell body 7 is used to play the effect of external protection, and the inside of shell body 7 is mainly composed of reinforcing support piece 3, sharp end block 5, end support 2 and connecting piece 6, wherein reinforcing support piece 3 acts on the middle position, and can be combined with end support 2 and sharp end block 5 through first connecting frame body 1 and second connecting frame body 4 on its two sides, respectively, which can effectively improve the connection stability inside, and further improve the firmness of the blade, end support 2 is arc solid structure, which can improve the strength of the end part and make the end part arc structure, which is more suitable for vertical axis wind power.

[0024] The material of connecting piece 6 is bamboo fiber, which has good toughness and strength after cutting, cooking and bending process, can improve the internal strength of the whole blade, and has lower cost, can improve the light weight of the blade, and is suitable for use in the blade.

[0025] The shell body 7 is made of stainless steel, which has good protection and is used on the outermost part to improve the service life of the whole body and is suitable for outdoor environment.

[0026] Please refer to Figure 2 A second limiting groove 303 is formed on the outer wall of the limit frame 302, and the connecting piece 6 is fixed in the second limiting groove 303 by rivets; the support structure composed of the support frame 301 and the limit frame 302 not only connects the end support 2 and the sharp end block 5, but also limits the connecting piece 6. Specifically, the connecting piece 6 is fixed in the second limiting groove 303 during installation, and is limited by the second limiting groove 303, and the second limiting groove 303 and the connecting piece 6 are fixed by rivets to improve the installation strength of the connecting piece 6.

[0027] Further, the upper and lower surfaces of the end support 2 are provided with first limiting grooves 201, one end of the connecting piece 6 is fixed in the first limiting groove 201 by rivets, the upper and lower surfaces of the pointed end block 5 are provided with third limiting grooves 501, the other end of the connecting piece 6 is fixed in the third limiting groove 501 by rivets; when the connecting piece 6 is limited in the second limiting groove 303, one end of the connecting piece 6 is fixed in the first limiting groove 201 at the end support 2, and the other end of the connecting piece 6 is fixed in the third limiting groove 501 of the pointed end block 5, the two ends of the connecting piece 6 are limited by the first limiting groove 201 and the third limiting groove 501, and the connecting strength of the connecting piece 6, the end support 2 and the pointed end block 5 is further improved by the rivet fixing mode, the above structure is simple to install, the two ends and the middle position of the connecting piece 6 are limited by the limiting groove structure, the strength of the connecting piece 6 is improved, and the connecting strength of the above structure is also improved, so that the service life of the blade is ensured.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A low-cost, green vertical axis wind turbine blade, comprising an outer casing (7), characterized in that: A reinforcing support (3) is installed in the middle of the interior of the outer shell (7). A first connecting frame (1) is installed on one side of the reinforcing support (3). An end support (2) is installed on one side of the first connecting frame (1). A second connecting frame (4) is installed on the other side of the reinforcing support (3). A pointed block (5) is installed on one side of the second connecting frame (4). Connecting pieces (6) are installed at both the upper and lower ends of the reinforcing support (3).

2. The low-cost green vertical axis wind turbine blade according to claim 1, characterized in that: The reinforcing support (3) includes a support frame (301), and limit frames (302) are installed at both the upper and lower ends of the support frame (301). The limit frames (302) and the support frame (301) form an I-shaped structure.

3. The low-cost green vertical axis wind turbine blade according to claim 2, characterized in that: The outer wall of the limiting frame (302) is provided with a second limiting groove (303), and the connecting piece (6) is fixed in the second limiting groove (303) by rivets.

4. The low-cost green vertical axis wind turbine blade according to claim 1, characterized in that: The end support (2) is an arc-shaped solid structure. The upper and lower surfaces of the end support (2) are provided with first limiting grooves (201). One end of the connecting piece (6) is fixed in the first limiting groove (201) by a rivet.

5. A low-cost green vertical axis wind turbine blade according to claim 1, characterized in that: The tip block (5) is triangular in shape, and the upper and lower surfaces of the tip block (5) are provided with a third limiting groove (501). The other end of the connecting piece (6) is fixed in the third limiting groove (501) by a rivet.

6. The low-cost green vertical axis wind turbine blade according to claim 1, characterized in that: The connecting piece (6) is made of bamboo fiber.

7. The low-cost green vertical axis wind turbine blade according to claim 1, characterized in that: The outer shell (7) is made of stainless steel.

Images