CN201306250Y - Flexible outer ring type wind turbine - Google Patents

Abstract

A flexible outer ring type wind power generator, including a body and a wind wheel; the wind wheel includes a hub, blades and a flexible ring arranged on the tip of the blade; the surface of the flexible ring is coated with a coating, and the blades are uniformly arranged on the hub, and the root It is connected with the hub; there is a connecting device between the flexible ring and the blades, which is equal to the number of blades; elastic piece. The utility model is provided with a flexible ring on the blade tip, so the energy is not easily lost from the blade tip, and a swirl flow will be formed in the flexible ring, which is beneficial to improve work efficiency; since the flexible ring and the blade are connected as one, the blade will It will not easily fly away from the body due to centrifugal force; because it is a flexible ring, it is light and foldable, so it is easy to carry and install, and can be used on small and medium-sized wind power generators.

Description

A kind of flexible outer ring type wind power generator

technical field

The utility model relates to a wind power generator, in particular to a wind power generator with flexible rings outside the blades.

Background technique

At present, wind turbines are used more and more widely, such as street lamps, remote areas, etc.; in the process of use, people usually think of issues such as safety and efficiency; at present, the wind turbines used include the body and blades. , during the rotation of the blades, the blades may fly away from the body under the action of centrifugal force, which may cause safety problems. In addition, most of the wind energy of the wind turbine is lost from the tip of the blades. In order to solve these problems, now Steel rings are installed on the blades of some small wind turbines, which can keep the energy from being lost from the tip of the blades and prevent the blades from flying out. However, due to the structure and weight of the steel rings, it is difficult to implement on medium-sized wind turbines. , and it is inconvenient to carry and inconvenient to install.

Contents of the invention

The purpose of the utility model is to provide a flexible outer ring type wind generator, which can be used in small and medium-sized wind generators by adopting the structure of the utility model, and can improve efficiency, and is easy to carry and install.

In order to achieve the above object, the flexible outer ring type wind power generator of the present invention includes a body and a wind wheel; the wind wheel includes a hub, blades and a flexible ring arranged on the tip of the blade; the blades are evenly arranged on the hub The root is connected to the hub; the flexible ring and the blades are provided with a connecting device equal to the number of blades to divide the flexible ring; the blade and the flexible ring are connected as a whole through the connecting device.

With this structure, since the flexible ring is set outside the blade, the energy is not easily lost from the tip of the blade, and it is easy to form a swirl in the flexible ring, so the efficiency of the wind turbine is improved; and because the flexible ring and the blade It is connected as a whole, so that under the action of the flexible ring, the blades are not easy to fly away from the body under the action of centrifugal force and cause safety accidents; because the flexible ring is easy to fold, it is easy to carry and install. It can be used not only on small wind turbines, but also on large wind turbines.

As an improvement, the surface of the flexible ring is coated with a coating. Coating the flexible ring improves the smoothness of the surface of the flexible ring, so that the resistance of the wind force to the wind wheel can be reduced.

As a specific embodiment of the present utility model, the connecting device is a buckle. Snap connection, easy to install and disassemble.

As an embodiment of the present utility model, the connecting device is a screw and a connecting piece. With this structure, the connection is firm and reliable.

As an embodiment of the present utility model, the connecting device is a connecting piece, a buckle with a groove and a groove fixing body arranged on the flexible ring, and the connecting piece and the buckle with a groove are connected as a whole , the connecting piece is connected with the blade. With this structure, it is easy to install.

As an improvement, a deceleration plate is provided outside the flexible ring, and the deceleration plate is pivotally connected to the flexible ring. circle connected. When the rotation of the blades of the wind turbine reaches a certain speed, due to the action of centrifugal force, the centrifugal force overcomes the elastic force of the elastic plate, and the heavy end of the speed reducer moves outward around the pivot joint, forming a wind plate, which acts as a speed limiter. , when the rotational speed is within a certain range, due to the action of elastic parts, the speed reducer does not move.

As an improvement, a counterweight is provided on the flexible ring. The balance of the wind wheel can be automatically adjusted by using the counterweight.

As the embodiment of the utility model, the number of blades is five. Five blades are set, and when the flexible ring is installed on the blade, the flexible ring can be made into an approximate circle.

Compared with the prior art, the utility model is provided with a flexible ring on the blade tip, so the energy is not easy to be lost from the blade tip, and a swirl flow will be formed in the flexible ring, which is beneficial to improve work efficiency; because the flexible ring and The blades are connected as a whole, so that the blades will not easily fly away from the body due to centrifugal force; because it is a flexible ring, it is light and foldable, so it is easy to carry and install, and can be used on small and medium-sized wind turbines.

Description of drawings

Fig. 1 is a schematic diagram of the first embodiment of the present invention;

Fig. 2 is the schematic diagram of the second embodiment of the present invention;

Fig. 3 is the schematic diagram of the third embodiment of the present invention;

Figure 4 is a partially enlarged view of Figure 1;

Figure 5 is a partially enlarged view of Figure 2;

FIG. 6 is a partially enlarged view of FIG. 3 .

Detailed ways

first embodiment

The flexible outer ring wind power generator shown in Figure 1 and Figure 4 includes a body and a wind wheel, and the wind wheel includes a hub 1, a blade 2 and a flexible ring 3 arranged on the outer end of the blade; the described The blades 2 are five pieces and are evenly installed on the hub 1; the surface of the flexible ring 3 is coated with a counterweight; the number of the flexible ring 3 and the blades 2 is equal to the number of blades. The connecting device of the equally divided flexible ring, the connecting device is a buckle 4; the blade 2 and the flexible ring 3 are connected as a whole through the buckle 4, and a deceleration plate 5 is arranged outside the flexible circle, and the deceleration plate 5 is pivotally connected to the flexible ring 3, and the pivot point divides the deceleration disc into two sections with asymmetrical weights, and an elastic member 6 is arranged at both ends of the deceleration disc 5, and the elastic member 6 is connected with the flexible ring 3.

With this structure, since the flexible ring is provided outside the blade, the energy is not easily lost from the tip of the blade, and when the wind generator is working, it is easy to form a swirl in the flexible ring, so it is beneficial to the utilization of energy and improves the energy efficiency. Work efficiency; because the outer ring of the blade is flexible and can be folded, it is easy to carry; during the installation process of the flexible ring, the blade is first installed on the hub without fastening, and then the flexible ring is installed on the blade through a buckle. Finally, the blades are fastened to the hub. With this installation process, since the clips are evenly distributed on the flexible ring, the uniformity of the blades on the entire body can be ensured, and a counterweight is set on the flexible ring. When the wind wheel rotates, under the action of the counterweight, the wind wheel runs more smoothly; because the buckle is used as the connection device, the installation of the flexible ring is more convenient; coating the flexible ring is In order to improve the smoothness of its wrapping surface, it can reduce the resistance of the wind force to the wind wheel; set the deceleration plate outside the flexible circle, and one end is heavy and the other end is light. Within a certain range, due to the action of the elastic parts, the speed reducer does not produce any movement. When the blade rotation speed exceeds a certain range, the generated centrifugal force increases. At this time, the generated centrifugal force overcomes the elastic force of the elastic parts to decelerate One end of the sheet weight moves outward to form a windshield, which can prevent the rapid movement of the wind wheel; the purpose of setting five blades is to make the flexible ring outside the blades approximate a circle.

second embodiment

The flexible outer ring type wind power generator shown in Figure 2 and Figure 5 includes a body and a wind wheel, and the wind wheel includes a hub 1, a blade 2 and a flexible ring 3 arranged on the outer end of the blade; the described The blades 2 are five pieces and are evenly installed on the hub 1; the surface of the flexible ring 3 is coated with a counterweight; the number of the flexible ring 3 and the blades 2 is equal to the number of blades. The connecting device of the equally divided flexible ring, the connecting device is a screw 8 and a connecting piece 6, and the connecting piece 6 is arranged on the flexible ring 3; the blade 2 and the flexible ring 3 are connected by the screw 8 and the connecting piece 6. In one piece, a deceleration plate 5 is provided outside the flexible ring, and the deceleration plate 5 is pivotally connected to the flexible ring 3. The pivot point divides the deceleration plate into two sections with asymmetric weights, and elastic springs are provided at both ends of the deceleration plate 5. Part 6, the elastic part 6 is connected with the flexible ring 3.

With this structure, since the flexible ring is provided outside the blade, the energy is not easily lost from the tip of the blade, and when the wind generator is working, it is easy to form a swirl in the flexible ring, so it is beneficial to the utilization of energy and improves the energy efficiency. Work efficiency; because the outer ring of the blade is flexible and can be folded, it is easy to carry; during the installation process of the flexible ring, the blade is first installed on the hub without fastening, and then the flexible ring is installed on the blade through screws, and finally Fasten the blades to the hub. With this installation process, since the connecting devices are evenly distributed on the flexible ring, the uniformity of the blades on the entire body can be ensured, and a counterweight is set on the flexible ring. When the wheel rotates, under the action of the counterweight, the stability of the wind wheel is better during operation; because the connecting piece and the screw are used as the connecting device, the installation of the flexible ring is more convenient and firm; the coating on the flexible ring The purpose of the coating is to improve the surface smoothness of the envelope, so that the resistance of the wind to the wind wheel can be reduced; the deceleration plate is arranged outside the flexible circle, and one end is heavy and the other end is light. When the rotation speed of the blade is within a certain range, due to the action of the elastic member, the speed reducer does not produce any movement. When the rotation speed of the blade is greater than a certain range, the generated centrifugal force increases. At this time, the generated centrifugal force overcomes the force of the elastic member. The elastic force makes the heavy end of the deceleration plate move outwards to form a windshield, which can prevent the fast movement of the wind wheel; five blades are set so that the flexible circle outside the blade can approximate a circle.

third embodiment

The flexible outer ring wind power generator shown in Figure 3 and Figure 6 includes a body and a wind wheel, and the wind wheel includes a hub 1, a blade 2 and a flexible ring 3 arranged on the outer end of the blade; the described The blades 2 are five pieces and are evenly installed on the hub 1; the surface of the flexible ring 3 is coated with a counterweight; the number of the flexible ring 3 and the blades 2 is equal to the number of blades. The connecting device of the equally divided flexible ring, the connecting device is a connecting piece 7, a grooved buckle 9 and a groove fixing body 10 arranged on the flexible ring, and the connecting piece 7 and the grooved The buckle 9 is connected as a whole, and the connecting piece 7 is connected with the blade 2; the blade 2 and the flexible ring 3 pass through the connecting piece 7, the buckle 9 with a groove and the groove fixing body 10 provided on the flexible ring Connected as a whole, a deceleration plate 5 is provided outside the flexible ring, and the deceleration plate 5 is pivotally connected to the flexible ring 3. The pivot point divides the deceleration plate into two sections with asymmetric weights, and the two ends of the deceleration plate 5 are provided with There is an elastic piece 6, and the elastic piece 6 is connected with the flexible ring 3.

With this structure, since the flexible ring is provided outside the blade, the energy is not easily lost from the tip of the blade, and when the wind generator is working, it is easy to form a swirl in the flexible ring, so it is beneficial to the utilization of energy and improves the energy efficiency. Work efficiency; because the ring outside the blade is flexible and can be folded, it is easy to carry; during the installation process of the flexible ring, first install the blade on the hub without fastening, and then buckle the buckle with grooves to the flexible ring The fixed body on the flexible ring is connected to the blade as a whole, and finally the blade is fastened to the hub. With this installation process, since the fixed body on the flexible ring is evenly distributed on the flexible ring, it can ensure that the blade is in the whole Uniformity on the machine body, and a counterweight is set on the flexible ring. When the wind rotor rotates, under the action of the counterweight, the stability of the wind rotor is better during operation; due to the use of connecting pieces and screws as Therefore, the installation of the flexible ring is more convenient and firm; the purpose of coating the flexible ring is to improve the smoothness of its wrapping surface, so that the resistance of the wind to the wind wheel can be reduced; the speed reducer is set outside the flexible ring, and One end is heavy and the other end is light. At the same time, elastic parts are installed at both ends of the speed reducer. In this way, when the rotation speed of the blade is within a certain range, due to the action of the elastic parts, the speed reduction plate does not produce any movement. When the rotation speed of the blade is greater than a certain range , the generated centrifugal force increases. At this time, the generated centrifugal force overcomes the elastic force of the elastic part to make the heavy end of the speed reducer move outward to form a windshield, which can prevent the rapid movement of the wind wheel; set the blade to Five pieces are in order to make the flexible ring outside the blade can be approximated as a circle.

Claims (8)

1. A flexible outer ring type wind generator, comprising a body and a wind wheel; it is characterized in that: the described wind wheel includes a hub, blades and a flexible ring arranged on the tip of the blade; the blades are evenly arranged on the hub The root is connected to the hub; the flexible ring and the blades are provided with a connecting device equal to the number of blades to divide the flexible ring; the blade and the flexible ring are connected as a whole through the connecting device. 2. The flexible outer ring type wind power generator according to claim 1, characterized in that: the surface of the flexible ring is coated with a coating. 3. The flexible outer ring type wind power generator according to claim 2, characterized in that: the connecting device is a buckle. 4. The flexible outer ring type wind power generator according to claim 2, characterized in that: said connecting device is a screw and a connecting piece. 5. The flexible outer ring type wind power generator according to claim 2, characterized in that: the connecting device is a connecting piece, a buckle with a groove and a groove fixing body arranged on the flexible ring, the The connecting piece is integrated with the buckle with groove, and the connecting piece is connected with the blade. 6. Any flexible outer-ring type wind power generator as claimed in claims 4 to 5, characterized in that: a deceleration disc is arranged outside the flexible ring, and the deceleration disc is pivotally connected to the flexible ring, and the pivot point divides the deceleration disc into For the two sections with asymmetrical weight, the two ends of the deceleration plate are provided with elastic parts, and the elastic parts are connected with the flexible ring. 7. The flexible outer ring type wind power generator according to claim 6, characterized in that: a counterweight is provided on the flexible ring. 8. The flexible outer ring type wind power generator according to claim 7, wherein the number of said blades is five.

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