Blade mounting structure of vertical axis wind turbine

Abstract

The utility model discloses a blade mounting structure of a vertical axis wind turbine, which belongs to the technical field of blade mounting structures and comprises two mounting ends of the generator, and one side of each of the two mounting ends of the generator is provided with a same blade body. According to the utility model, the limiting frames are fixedly mounted at one ends of the two mounting ends of the generator, and the two L-shaped insertion plates are mounted on the surfaces of the blades, so that during use, a user inserts the two L-shaped insertion plates into the inner walls of the two limiting frames respectively, and then the two L-shaped insertion plates are limited through the limiting units; in the follow-up use process, even if the blades are driven by the two installation ends of the generator, the blades subjected to centrifugal force can drive the two L-shaped insertion plates to abut against the inner walls of the two limiting frames, and compared with the mode that the blades are directly installed at the two installation ends of the generator through bolts, the blades can be installed more stably. And in addition, tools are not needed.

Description

Technical Field

[0001] This utility model relates to the field of blade mounting structure technology, specifically a blade mounting structure for a vertical axis wind turbine. Background Technology

[0002] A vertical axis wind turbine (VAWT) is a type of wind turbine whose axis of rotation is perpendicular to the ground or the direction of airflow. As a renewable energy power generation device, VAWT still has important research value and application prospects.

[0003] Currently, the blades of vertical axis wind turbines are typically installed by bolts onto the mounting plate. This installation method requires tools, and the bolts are prone to coming loose. Therefore, a new type of blade mounting structure for vertical axis wind turbines is needed to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that currently, when installing blades of vertical axis wind turbines, the blades are generally installed on the surface of the mounting plate of the vertical axis wind turbine with bolts. This installation method not only requires tools, but also the bolts are prone to falling off. This utility model provides a blade installation structure.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A blade mounting structure for a vertical axis wind turbine includes: two mounting ends of the generator, one side of each mounting end of the generator having the same blade body, two L-shaped inserts fixedly mounted on the surface of the blade body, and a limiting frame fixedly mounted on one end of each mounting end of the generator. The surfaces of the two L-shaped inserts are slidably inserted into the inner walls of the two limiting frames. The structure also includes a limiting unit for limiting the position of the two L-shaped inserts on the inner walls of the two limiting frames.

[0007] Furthermore, the limiting unit includes two protrusions respectively disposed on the surfaces of one of the L-shaped insert plates and one of the limiting frames, the surfaces of the two protrusions being slidably inserted with the same insert rod, and also includes a force-applying unit, the force-applying unit being used to apply a force to the insert rod to keep it in place.

[0008] Furthermore, the force-applying unit includes a fixed frame that is fixedly installed on the surface of the blade body. A force-applying plate is slidably inserted into the inner wall of the fixed frame. One end of the insert rod is fixedly installed on the surface of the force-applying plate and its surface is slidably inserted into the surface of the fixed frame. A spring is fixedly installed on the surface of the force-applying plate, and the other end of the spring is fixedly installed on the surface of the blade.

[0009] Furthermore, one of the protruding surfaces is provided with a guide surface.

[0010] Furthermore, a handle is fixedly installed on the surface of the force-applying plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by fixing a limiting frame at one end of each of the two mounting ends of the generator, and installing two L-shaped inserts on the surface of the blade, the user inserts the two L-shaped plates into the inner walls of the two limiting frames respectively during use, and then limits the two L-shaped inserts by the limiting unit, which can achieve a relatively stable installation of the blade. In subsequent use, even if the blade is driven by the two mounting ends of the generator, the blade under centrifugal force will drive the two L-shaped inserts to abut against the inner walls of the two limiting frames. This installation method is more stable than directly installing the blade on the two mounting ends of the generator with bolts, and does not require the use of tools.

[0013] 2. In this utility model, a protrusion is provided on the surface of one of the mounting frames and one of the L-shaped inserts, and a guide surface is provided on the surface of one of the protrusions. When in use, the user needs to pull the handle to make the force plate slide on the inner wall of the fixed frame, and then pull the blade to make the insert slide on the guide surface. During this process, the spring is further compressed, thereby removing the blade. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a half-sectional view of the present invention;

[0016] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;

[0017] Figure 4 This is a partial schematic diagram of the three-dimensional structure of this utility model from another angle.

[0018] In the diagram: 1. Two mounting ends of the generator; 2. Blade body; 3. L-shaped insert plate; 4. Limiting frame; 5. Limiting unit; 51. Protrusion; 52. Insert rod; 53. Force application unit; 531. Fixing frame; 532. Force application plate; 533. Spring; 6. Guide surface; 7. Handle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] This embodiment provides a blade mounting structure, primarily addressing the current issue that vertical axis wind turbine blades are typically installed using bolts onto the mounting plate surface. This method requires tools and the bolts are prone to loosening. The embodiment provides the following technical solution, which will be discussed in conjunction with... Figures 1-4 Please provide a detailed explanation:

[0021] A blade mounting structure for a vertical axis wind turbine includes two mounting ends 1 of the generator, with a single blade body 2 mounted on one side of each mounting end 1. In use, the user slides two L-shaped inserts 3, each fixedly mounted on the surface of the blade body 2, into the inner walls of two limiting frames 4, each fixedly mounted on the surface of the two mounting ends 1 of the generator. Finally, limiting units 5 restrict the positions of the two L-shaped inserts 3 within the inner walls of the two limiting frames 4, thus achieving a stable mounting of the blade body 2. During subsequent use, the blade body 2, driven by the two mounting ends 1 of the generator, experiences outward centrifugal force. Traditional threaded mounting is prone to detachment, while the L-shaped inserts 3 in this device are more stable within the limiting frames 4. The limiting unit 5 mainly consists of two protrusions 51, each located on the surface of one of the L-shaped inserts 3 and one of the limiting frames 4. In use, the user slides a single rod 52 into the surfaces of the two protrusions 51, and then a force-applying unit 53 limits the rod 52, applying a force to maintain its position.

[0022] By fixing a limiting frame 4 at one end of each of the two mounting ends 1 of the generator, and installing two L-shaped inserts 3 on the surface of the blade body 2, the user inserts the two L-shaped plates into the inner walls of the two limiting frames 4 respectively during use, and then limits the two L-shaped inserts 3 through the limiting unit 5, thus achieving a relatively stable installation of the blade body 2. In subsequent use, even if the blade body 2 is driven by the two mounting ends 1 of the generator, the blade body 2, under centrifugal force, will cause the two L-shaped inserts 3 to abut against the inner walls of the two limiting frames 4. This installation method is more stable than directly installing the blade body 2 on the two mounting ends 1 of the generator with bolts, and does not require the use of tools.

[0023] By providing a protrusion 51 on the surface of one of the mounting frames and one of the L-shaped insert plates 3, and providing a guide surface 6 on the surface of one of the protrusions 51, the user needs to pull the handle 7 during use to drive the force plate 532 to slide on the inner wall of the fixed frame 531, and then pull the blade body 2 to drive the insert rod 52 to slide on the guide surface 6. During this process, the spring 533 is further compressed, thereby removing the blade body 2.

[0024] like Figure 3 As shown, in some embodiments, the main components of the force-applying unit 53 are: a fixed frame 531 fixedly installed on the surface of the blade body 2; a spring 533 fixedly installed on the surface of the blade body 2; a force-applying plate 532 fixedly installed on the other end of the spring 533; and a rod 52 fixedly installed on the surface of the force-applying plate 532. The rod 52 is slidably inserted into the surface of the fixed frame 531. Therefore, when in use, the user pulls the handle 7 fixedly installed on the surface of the force-applying plate 532, which can drive the force-applying plate 532 to slide on the inner wall of the fixed frame 531, further driving the rod 52 to move. Finally, the user pulls the blade body 2, which drives the two L-shaped inserts 3 to slide on the inner wall of the two limiting frames 4, so that the rod 52 slides on the surface of the guide surface 6 opened on the surface of one of the protrusions 51, and the two L-shaped inserts 3 can be smoothly pulled out of the two limiting frames 4.

[0025] The working process of this utility model is as follows: First, when the user needs to install the blade body 2 on the two mounting ends 1 of the generator, they need to pull the handle 7 to move the insertion rod 52, so that one end of the insertion rod 52 abuts against the surface of one of the limiting frames 4, and inserts the two L-shaped insertion plates 3 into the inner walls of the two limiting frames 4 respectively. Finally, the insertion rod 52 is inserted into the surfaces of the two protrusions 51 in sequence, thus realizing the installation of the blade body 2. In subsequent use, this structure allows the two L-shaped insertion plates 3 to stably abut against the surfaces of the two limiting frames 4, which is more stable than the existing technology of directly installing with bolts.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A blade mounting structure for a vertical axis wind turbine, characterized in that, include: The generator has two mounting ends (1), and one side of each mounting end (1) is provided with the same blade body (2). Two L-shaped inserts (3) are fixedly installed on the surface of the blade body (2). One end of each mounting end (1) is fixedly installed with a limiting frame (4). The surfaces of the two L-shaped inserts (3) are slidably inserted into the inner walls of the two limiting frames (4). The generator also includes a limiting unit (5), which is used to limit the position of the two L-shaped inserts (3) on the inner walls of the two limiting frames (4).

2. The blade mounting structure of a vertical axis wind turbine according to claim 1, characterized in that: The limiting unit (5) includes two protrusions (51) respectively disposed on the surfaces of one of the L-shaped inserts (3) and one of the limiting frames (4). The surfaces of the two protrusions (51) are slidably connected to the same insert rod (52). It also includes a force-applying unit (53) for applying a force to the insert rod (52) to keep it in place.

3. The blade mounting structure of a vertical axis wind turbine according to claim 2, characterized in that: The force application unit (53) includes a fixed frame (531) fixedly installed on the surface of the blade body (2). A force application plate (532) is slidably inserted into the inner wall of the fixed frame (531). One end of the insertion rod (52) is fixedly installed on the surface of the force application plate (532) and its surface is slidably inserted into the surface of the fixed frame (531). A spring (533) is fixedly installed on the surface of the force application plate (532), and the other end of the spring (533) is fixedly installed on the surface of the blade body (2).

4. The blade mounting structure of a vertical axis wind turbine according to claim 2, characterized in that: One of the protrusions (51) has a guide surface (6) on its surface.

5. The blade mounting structure of a vertical axis wind turbine according to claim 3, characterized in that: A handle (7) is fixedly installed on the surface of the force-applying plate (532).

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