CN216241061U - Wing-ground effect power generation device capable of changing attack angle through inclined plane matching - Google Patents

Abstract

The utility model provides a wing-ground effect power generation device capable of changing an attack angle through inclined plane matching, which comprises a wing type structure, a sliding structure and an attack angle changing structure, wherein the wing type structure is provided with a plurality of inclined planes; the wing profile structure comprises two wing profiles, an end connecting rod and a rear end bearing rod; the sliding structure comprises a sliding block, a pawl and a bearing; the upper part of the front surface of the sliding block and the lower part of the rear surface of the sliding block are respectively provided with a cylindrical rod with a cap, the pawl is rotatably arranged on the cylindrical rod with the cap, and the pawl is connected with the cylindrical rod with the cap through a spring; the front end part of the pawl is embedded between the gear teeth of the ratchet wheel; one side of the rear end part of the pawl close to the slide block is provided with a concave part; the attack angle changing structure comprises a frame, and a sliding block is arranged on the frame in a sliding manner through a roller; the frame also comprises two accessory outer rods, and the wing-shaped structure can drive the sliding structure to move up and down between the two accessory outer rods; the frame also comprises bosses which are respectively arranged on the lower part of the front surface and the upper part of the rear surface of the edge where the other slide rail is positioned. The technical scheme of the utility model can change the attack angle more quickly.

Description

Wing-ground effect power generation device capable of changing attack angle through inclined plane matching

Technical Field

The utility model relates to the field of power generation devices, in particular to a wing-ground effect power generation device capable of changing an attack angle through inclined plane matching.

Background

The large-scale wind power device has higher cost, and the general installation position requires a gentle land; meanwhile, a common three-blade paddle wind power device is installed upwind, the wind area is large, and the blades can also vibrate in the incoming flow dimension in addition to the circumferential rotation of the blades.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the utility model provides a wing-ground effect power generation device for changing an attack angle through the cooperation of an inclined plane. The utility model mainly utilizes the ground effect of the wing and the change of the attack angle to move the wing up and down to generate power.

The technical means adopted by the utility model are as follows:

a wing-ground effect power generation device capable of changing an attack angle through inclined plane matching comprises a wing type structure, a sliding structure and an attack angle changing structure;

the wing-shaped structure comprises two wing shapes, the two wing shapes are connected through a front end connecting rod and a rear end bearing rod, and two ratchet wheels are arranged at two ends of the rear end bearing rod respectively;

the sliding structure comprises a sliding block, a pawl and a bearing; the left side and the right side of the sliding block are respectively provided with a roller; the upper part of the front surface of the sliding block and the lower part of the rear surface of the sliding block are respectively provided with a cylindrical rod with a cap, the pawl is rotatably arranged on the cylindrical rod with the cap, and the pawl is connected with the front end of the cylindrical rod with the cap through a spring sleeved outside the cylindrical rod with the cap; the front end part of the pawl is embedded between the gear teeth of the ratchet wheel; a recessed part is arranged at one side of the rear end part of the pawl, which is close to the slide block, and the recessed part comprises an inclined plane; the center of the sliding block is provided with a through hole for mounting the bearing; the rear end bearing rod penetrates through the bearing;

the attack angle changing structure comprises a frame, a sliding rail is arranged on the inner side wall of the frame, and the sliding block is slidably mounted on the sliding rail through the roller; the frame further comprises two accessory outer rods which are arranged on the edge where one sliding rail is located and perpendicular to the sliding rail, the two accessory outer rods are arranged up and down, the accessory outer rods are perpendicular to the front end connecting rod, and the wing-shaped structure can drive the sliding structure to move up and down between the two accessory outer rods; the frame also comprises bosses which are respectively arranged on the lower part of the front surface and the upper part of the rear surface of the other slide rail, and the end surface of one end of each boss is of an inclined surface structure matched with the inclined surface of the concave part of the pawl.

Further, the front end connecting rod is a semi-cylindrical rod piece with a flattened bottom; the rear end bearing rod 102 is a cylindrical rod member.

Further, the sliding structure further comprises a sliding rod arranged at the bottom of the sliding block, a slide way is arranged at the bottom of the frame, and the sliding rod penetrates through the slide way.

Furthermore, the cylindrical rod with the cap on each side is provided with a corresponding pawl, the pawl is provided with a cylindrical hole matched with the cylindrical rod with the cap, and the pawl is arranged on the sliding block in a matched mode through the cylindrical rod with the cap and the cylindrical hole.

Further, a pulley is mounted in the recess.

Furthermore, the boss positioned at the lower part of the front surface corresponds to the pawl at the upper part of the front surface of the sliding block, and the upper end surface of the boss is of the inclined surface structure; the boss positioned on the upper part of the rear surface corresponds to the pawl on the lower part of the rear surface of the sliding block, and the lower end face of the boss is of an inclined plane structure.

Compared with the prior art, the utility model has the following advantages:

compared with other wing-type power generation devices, the wing-ground effect power generation device with the attack angle changed through the cooperation of the inclined planes can change the attack angle more quickly in a mode that the inclined planes of the pawl concave parts and the inclined planes of the bosses are matched in structure under the same speed, because the attack angle is changed all the time through the matching of the inclined planes after passing through the inclined planes in the forward direction and the attack angle is locked after passing through the inclined planes in the reverse direction; after the straight-ahead direction passes through the inclined plane, the attack angle is changed downwards all the time under the action of the moment, the change of the attack angle is easier to complete quickly, the up-down moving frequency is higher in the same time, and more power is generated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a power generation device according to the present invention.

Fig. 2 is a schematic view of the airfoil structure.

Fig. 3 is an exploded view of the sliding structure.

Fig. 4 is a schematic view of the angle of attack changing structure.

Fig. 5 is a schematic view of the boss structure.

Fig. 6 is a schematic view of the pawl installation.

Fig. 7 is a schematic view of the structure of the concave portion of the pawl.

Fig. 8 is a schematic view showing a state where the pawl is in contact with the boss.

FIG. 9 is a schematic view showing a contact state of the ratchet, the pawl and the boss.

Fig. 10 is a schematic view of the angle of attack.

In the figure: 1. an airfoil structure; 101. an airfoil profile; 102. a rear end bearing rod; 103. a ratchet wheel; 104. a front end connecting rod; 2. a sliding structure; 201. a slider; 202. a capped cylindrical rod; 203. a pulley; 204. a roller box; 205. a pawl; 2051. a recessed portion; 206. a spring; 207. a roller; 208. a bearing; 209. a bearing ball; 210. a slide bar; 3. the angle of attack changes the structure; 301. an accessory outer pole; 302. a slide rail; 303. a slideway; 304. and (4) a boss.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

Example 1

As shown in fig. 1 to 9, the present invention provides a wing-ground effect power generation device with an attack angle changed by a bevel cooperation, which comprises an airfoil structure 1, a sliding structure 2 and an attack angle changing structure 3;

the wing-shaped structure 1 comprises two wing-shaped bodies 101, the two wing-shaped bodies 101 are connected through a front end connecting rod 104 and a rear end bearing rod 102, and two ratchet wheels 103 are respectively arranged at two ends of the rear end bearing rod 102;

the front end connecting rod 104 is a semi-cylindrical rod piece with a flattened bottom; the rear end bearing rod 102 is a cylindrical rod;

the sliding structure 2 comprises a sliding block 201, a sliding rod 210 arranged at the bottom of the sliding block 201, a pawl 205 and a bearing 208; the left side and the right side of the sliding block 201 are respectively provided with a roller box 204, and a roller 207 is installed in the roller box 204 through a cylinder which is transversely arranged; the upper portion of the front surface and the lower portion of the rear surface of the slider 201 are respectively provided with a capped cylindrical rod 202, the pawl 205 is rotatably mounted on the capped cylindrical rod 202, specifically, the capped cylindrical rod 202 on each side is provided with a corresponding pawl 205, a cylindrical hole matched with the capped cylindrical rod 202 is formed in the pawl 205, the pawl 205 is mounted on the slider 201 through the capped cylindrical rod 202 and the cylindrical hole in a mutually matched manner, and the pawl 205 is connected with the front end of the capped cylindrical rod 202 through a spring 206 sleeved outside the capped cylindrical rod 202; the front end part of the pawl 205 is an inclined plane, and the inclined planes of the pawl 205 positioned at the two sides of the slider 201 face opposite directions; the pawl 205 is embedded between the gear teeth of the ratchet wheel 103 through the inclined surface;

a recessed part 2051 is arranged at one side of the rear end part of the pawl 205 close to the slider 201, the recessed part 2051 comprises an inclined surface, and a pulley 203 is installed on the recessed part 2051; in this embodiment, the side of the ratchet wheel 205 close to the slider 201 is referred to as the inner side of the ratchet wheel 205, and the side far away from the slider 201 is referred to as the outer side of the ratchet wheel 205;

a through hole for installing the bearing 208 is arranged in the center of the sliding block 201; the rear bearing rod 102 passes through the bearing 208, so as to realize the connection of the wing profile structure 1 and the sliding structure 2;

the bearing 208 comprises an inner bearing seat and an outer bearing seat, and 7 bearing balls 209 are arranged between the inner bearing seat and the outer bearing seat;

as shown in fig. 10, the attack angle is an included angle between the chord and the incoming flow ≥ AOA;

the attack angle changing structure 3 comprises a frame, two opposite inner side walls of the frame are respectively provided with a slide rail 302, the sliding block 201 is slidably mounted on the slide rail 302 through the rollers 207 on the left side and the right side, and the sliding block 201 can roll in the slide rail 302 through the rollers 207 to move up and down in the frame;

a slide way 303 is arranged at the bottom of the frame, and the slide bar 210 penetrates through the slide way 303 to guide the sliding of the slide block 201;

the frame further comprises two accessory outer rods 301 which are arranged on the edge where one sliding rail 302 is located and perpendicular to the sliding rail, the two accessory outer rods 301 are arranged up and down, the accessory outer rods 301 are perpendicular to the front end connecting rod 104, and the wing-shaped structure 1 can drive the sliding structure 2 to move up and down between the two accessory outer rods 301;

when the wing profile structure 1 is slidably mounted on the frame through the sliding block 201, the front end connecting rod 104 faces the side of the accessory outer rod 301;

the frame further comprises bosses 304 respectively arranged at the lower part of the front surface and the upper part of the rear surface of the other slide rail 302, the end surface of one end of each boss 304 is a slope structure matched with the slope of the concave part 2051 of the pawl 205, the slope structure is arranged to help the bosses 304 to push the pawl 205 to move towards the outside of the pawl 205 and along the outer side surface of the bosses 304 through the rolling of the pulley 203 on the slope structure of the bosses 304 so as to change the attack angle, in the process, the pulley 203 can change the sliding of the pawl 205 and the bosses 304 into rolling to reduce friction, and when the pawl 205 leaves the bosses 304, the spring 206 can help the pawl 205 to restore the position;

when the wing-shaped structure 1 drives the sliding structure 2 to move to the position of the wedge assembly, the inclined surface structure of the boss 304 can contact with the recess 2051 of the pawl 205;

the boss 304 positioned at the lower part of the front surface corresponds to the pawl 205 positioned at the upper part of the front surface of the slider 201, and the upper end surface of the boss 304 is of the inclined surface structure; the boss 304 positioned at the upper part of the rear surface corresponds to the pawl 205 at the lower part of the rear surface of the slider 201, and the lower end surface of the boss 304 is of the inclined surface structure;

the attachment outer rod 301 arranged above is used for generating a moment on the airfoil structure 1 after the airfoil structure 1 moves from bottom to top and contacts the attachment outer rod 301 arranged above, the front end connecting rod 104 and the attachment outer rod 301 are matched, and meanwhile, after the slider 201 moves upwards until the recessed portion 2051 of the pawl 205 positioned at the lower part of the rear surface of the slider 201 is contacted with the corresponding inclined surface structure of the boss 304, and the boss 304 can push the pawl 205 to move towards the outer side of the pawl 205 to open the constraint on the ratchet 103 when the slider 201 continues to move upwards, so that the moment generated on the airfoil structure 1 by the front end connecting rod 104 changes the attack angle of the airfoil structure 1 to be negative;

the accessory outer rod 301 arranged below is used for generating a moment to the airfoil structure 1 after the airfoil structure 1 moves from top to bottom and contacts with the accessory outer rod 301 arranged below, and meanwhile, after the slider 201 moves downwards to the position where the recess 2051 of the pawl 205 on the upper portion of the front surface of the slider 201 is in contact with the inclined surface structure of the corresponding boss 304, and the boss 304 can push the pawl 205 to move towards the outer side of the pawl 205 to open the constraint on the ratchet 103 when the slider 201 continues to move downwards, so that the moment generated to the airfoil structure 1 by the front end connecting rod 104 changes the attack angle of the airfoil structure 1 to be positive.

When fluid flows over the surface of the wing, the difference in fluid velocity across the upper and lower surfaces of the wing creates a pressure differential across the upper and lower surfaces, and the force created by this pressure differential is mostly used to provide lift to the aircraft. At the same time, it is noted that the wing generates additional lift in addition to the normal lift at the near-wall surface due to the influence of the ground effect, i.e. the wing has no time for the air under the wing to diffuse at the near-wall position due to the influence of the near-wall surface, and the pressure under the wing increases. Meanwhile, the positive and negative of the differential pressure of the upper surface and the lower surface can be adjusted by reasonably controlling the positive and negative of the attack angle, namely, the conversion between the lift force and the lower pressure can be achieved by adjusting the attack angle. The utility model realizes the up-and-down movement of the wing by utilizing the lifting force principle and the ground effect principle of the wing profile in the flow field, and converts the kinetic energy of the up-and-down movement into electric energy to a certain extent, thereby achieving the purpose of power generation.

The following describes the operation of the power generation device of the present invention in one cycle specifically:

assuming that the wing profile structure 1 starts to operate from the middle and the attack angle is positive, the wing profile structure 1 generates lift force to drive the sliding block 201 to move upwards due to the ground effect and the action of the positive attack angle; when the connecting rod 104 at the front end of the wing profile structure 1 is contacted with the accessory outer rod 301, a moment is generated on the wing profile structure 1 along with the increase of the height; meanwhile, the inclined surface of the recessed part 2051 on the inner side of the pawl 205 is in forward matching with the inclined surface structure at the end part of the boss 304, so that the pawl 205 slides to the outer side of the pawl 205 under the matching of the pulley 203, the constraint of the pawl 205 on the ratchet wheels 103 on the left side and the right side of the wing-shaped structure 1 is opened, the wing-shaped structure 1 rotates downwards under the action of moment to change into a negative attack angle, and the speed of the wing-shaped structure 1 and the slider structure 2 caused by the initial positive attack angle still moves upwards; the pawl 205 moves along the outside of the boss 304 during the restricted upward movement of the opening pawl 205, and the pawl 205 does not restrict the change of the angle of attack of the airfoil structure at all times, so that the angle of attack changes in the negative direction under the action of the torque.

After the downward force generated by the negative attack angle counteracts the upward speed, the airfoil structure 1 and the slider structure 2 start to move downward, and in the process of moving from the top to the middle, when the inclined plane of the concave part 2051 on the inner side of the pawl 205 is reversely matched with the inclined plane structure of the boss block 304, and under the elastic force of the compression spring 206, the pawl 205 slides inward and finally returns to the original position, the motion of the ratchet gears 103 on the left side and the right side of the airfoil structure 1 is limited again, and the attack angle keeps negative and moves downward.

When the connecting rod 104 moves downwards to the front end of the wing-shaped structure to be contacted with the outer rod of the attachment of the lower part 301, a moment is generated on the wing-shaped structure; meanwhile, the inclined surface of the recessed part 2051 on the inner side of the pawl 205 is in forward matching with the inclined surface structure at the end part of the boss 304, so that the pawl 205 slides towards the outer side of the pawl 205 under the matching of the pulley 203, the constraint of the pawl 205 on the ratchet wheels 103 on the left side and the right side of the wing-shaped structure is opened, the wing-shaped structure 1 rotates upwards under the action of torque to change into a positive attack angle, and at the moment, the speed of the wing-shaped structure 1 and the slider structure 2 caused by the negative attack angle still moves downwards; during the downward movement of the pawl 205 from the restraint, the pawl 205 moves along the outside of the boss 304, and the pawl 205 does not restrain the angle of attack of the wing profile structure 1 at all times, so that the angle of attack changes positively under the action of the torque.

After the lifting force generated by the positive attack angle counteracts the downward speed, the airfoil structure 1 and the slider structure 2 start to move upwards, and in the process of moving from the lowest part to the middle part, when the inclined plane of the concave part 2051 on the inner side of the pawl 205 is reversely matched with the inclined plane structure at the end part of the boss 304, under the action of the elastic force of the compression spring 206, the pawl 205 slides inwards and finally returns to the original position, the movement of the ratchet wheels 103 on the left side and the right side of the airfoil structure 1 is limited again, the positive attack angle is kept, and the upward movement is realized; reciprocating in this way, the generated kinetic energy is finally output as electric energy.

The wing-ground effect power generation device capable of changing the attack angle through the inclined plane matching has the advantages of low construction cost, small wind area, small vibration and easiness in maintenance; compared with a common wind power device, the wind power device is more flexible, can be placed on the sea for wind power generation, and can utilize the wall effect if being placed closer to the sea level, so that the power generation efficiency is higher; can also be placed in seawater to generate electricity by using tide or wave; and the wind power generation device can be arranged in a wind area which is not suitable for mounting a large power generation device in a land mountain area according to a wide wind area in China.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. A wing-ground effect power generation device capable of changing an attack angle through inclined plane matching is characterized by comprising a wing type structure, a sliding structure and an attack angle changing structure;

the wing-shaped structure comprises two wing shapes, the two wing shapes are connected through a front end connecting rod and a rear end bearing rod, and two ratchet wheels are arranged at two ends of the rear end bearing rod respectively;

the sliding structure comprises a sliding block, a pawl and a bearing; the left side and the right side of the sliding block are respectively provided with a roller; the upper part of the front surface of the sliding block and the lower part of the rear surface of the sliding block are respectively provided with a cylindrical rod with a cap, the pawl is rotatably arranged on the cylindrical rod with the cap, and the pawl is connected with the front end of the cylindrical rod with the cap through a spring sleeved outside the cylindrical rod with the cap; the front end part of the pawl is embedded between the gear teeth of the ratchet wheel; a recessed part is arranged at one side of the rear end part of the pawl, which is close to the slide block, and the recessed part comprises an inclined plane; the center of the sliding block is provided with a through hole for mounting the bearing; the rear end bearing rod penetrates through the bearing;

the attack angle changing structure comprises a frame, a sliding rail is arranged on the inner side wall of the frame, and the sliding block is slidably mounted on the sliding rail through the roller; the frame further comprises two accessory outer rods which are arranged on the edge where one sliding rail is located and perpendicular to the sliding rail, the two accessory outer rods are arranged up and down, the accessory outer rods are perpendicular to the front end connecting rod, and the wing-shaped structure can drive the sliding structure to move up and down between the two accessory outer rods; the frame also comprises bosses which are respectively arranged on the lower part of the front surface and the upper part of the rear surface of the other slide rail, and the end surface of one end of each boss is of an inclined surface structure matched with the inclined surface of the concave part of the pawl.

2. The wing-ground effect power generation device for changing the angle of attack through bevel cooperation according to claim 1, wherein the front end connecting rod is a semi-cylindrical rod member with a flattened bottom; the rear end bearing rod 102 is a cylindrical rod member.

3. The wing-ground effect power generation device with the angle of attack changed through the slope cooperation according to claim 1, wherein the sliding structure further comprises a sliding rod installed at the bottom of the sliding block, a slideway is arranged at the bottom of the frame, and the sliding rod penetrates through the slideway.

4. The wing-over-the-ground effect generator according to claim 1, wherein the cylindrical rod with cap on each side is provided with a corresponding pawl, the pawl is provided with a cylindrical hole matching with the cylindrical rod with cap, and the pawl is mounted on the sliding block through the cylindrical rod with cap and the cylindrical hole in a mutually matched manner.

5. The wing-over-the-ground effect power generation device for changing the angle of attack through bevel engagement according to claim 1, wherein the recess is fitted with a pulley.

6. The wing-ground effect power generation device for changing the angle of attack through slope cooperation according to claim 1, wherein the boss located at the lower part of the front surface corresponds to the pawl located at the upper part of the front surface of the slider, and the upper end surface of the boss is of the slope structure; the boss positioned on the upper part of the rear surface corresponds to the pawl on the lower part of the rear surface of the sliding block, and the lower end face of the boss is of an inclined plane structure.

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