CN210068375U

CN210068375U - Combined vertical shaft movable blade windmill

Info

Publication number: CN210068375U
Application number: CN201920722628.0U
Authority: CN
Inventors: 石峰; 石鹏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-02-14
Anticipated expiration: 2029-05-20

Abstract

The embodiment of the utility model discloses modular vertical axis movable blade windmill, including ground, subaerial back shaft of fixed mounting, rotate the blade of connecting at the epaxial mounting bracket of back and installing four equipartitions on the mounting bracket, the back shaft is vertical setting usually, and the mounting bracket adopts the square frame type, and one side of blade articulates on the mounting bracket, and the blade has contained angle and relative two blade settings at the different sides of mounting bracket with the mounting bracket, and one side fixedly connected with extension spring of blade, extension spring pass through the rope and connect on the mounting bracket. The windmill is divided into a downwind side and an upwind side according to the rotation direction, blades on the downwind side are automatically closed under the pressure of wind, the wind energy is completely converted into mechanical energy under the vertical pressure of the wind, meanwhile, blades on the upwind side are blown away by the wind, an included angle is set between each blade and the wind direction, the maximum included angle between each blade and the mounting frame is 60-70 degrees, force for enabling the windmill to rotate in the forward direction can also be generated, and therefore the movable blades can more effectively convert the wind energy into the mechanical energy.

Description

Combined vertical shaft movable blade windmill

Technical Field

The embodiment of the utility model provides a relate to wind power generation equipment technical field, concretely relates to modular vertical axis movable vane windmill.

Background

The windmill, also called a wind turbine, is a power machine for converting wind energy into mechanical work, and is a heat energy utilization engine taking the sun as a heat source and the atmosphere as a working medium in a broad sense.

Although wind generators are diverse, they can be classified into two categories: 1. the rotating shaft of the wind wheel is parallel to the wind direction; 2. the wind turbine with vertical axis has the rotation axis perpendicular to the ground or the airflow direction.

The most important difference between a vertical axis wind turbine and a horizontal axis windmill is that a typical horizontal axis windmill requires a high tower that is larger than the radius of the wind wheel, resulting in an increase in tower height with an increase in captured power.

The conventional vertical axis windmill comprises a ground, a support shaft fixedly installed on the ground, a mounting bracket rotatably connected to the support shaft, and a blade fixedly installed on the mounting bracket, wherein the support shaft is generally vertically arranged.

The existing vertical axis windmill has the following problems: 1. the windmill efficiency is low; 2. the manufacture of large windmills is limited; 3. the generator may be overloaded in the presence of strong wind.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the present invention provides a combined vertical axis moving blade windmill to solve the problems of low windmill efficiency, limited manufacture of large windmill and overload of generator when strong wind is encountered due to unreasonable structure in the prior art.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides a modular vertical axis movable vane windmill, includes ground, the subaerial back shaft of fixed mounting, rotates the mounting bracket of connecting on the back shaft and install the blade of four equipartitions on the mounting bracket, one side of blade articulates on the mounting bracket, and the blade has contained angle and two relative blade settings in the different sides of mounting bracket with the mounting bracket, fixedly connected with blade rotates the turn-ups that is located blade one side when lining up with the mounting bracket on the mounting bracket, fixedly connected with restriction blade rotates the spacing damping device of maximum contained angle on the mounting bracket.

The utility model discloses the characteristic still lies in, spacing damping device includes that fixed connection is close to the extension spring of turn-ups one side at the blade, the extension spring passes through the rope to be connected on the mounting bracket.

The embodiment of the utility model provides a characterized in that still, the rotation axis that the blade hinged on the mounting bracket is along vertical direction.

The embodiment of the utility model provides a characterized in that still, the blade articulates the rotation axis along the horizontal direction on the mounting bracket.

The utility model discloses the characteristic still lies in, one side of extension spring and rope still is provided with supplementary stay cord, the one end fixed connection of supplementary stay cord is on the blade, and other end fixed connection is on the mounting bracket.

The embodiment of the utility model provides a characterized in that still, fixedly connected with stiffener on the mounting bracket and between the mounting bracket.

The embodiment of the utility model provides a characterized in that still, the blade is for the flat-plate-like that can splice each other.

The embodiment of the utility model provides a characterized in that still, set up elasticity window on the blade, elasticity window department installs the elastic plate that is greater than elasticity window, the elastic plate sets up and is close to turn-ups one side at the blade, one side fixedly connected with spring of elasticity window is kept away from to the elastic plate, the spring is compression state when the spring is supported on the blade to one end fixedly connected with fixed plate and the elastic plate of elastic plate on the blade that the elastic plate was kept away from to the spring.

The utility model discloses the characteristic still lies in, the one end bottom fixed mounting that the back shaft was kept away from to the mounting bracket has the gyro wheel, subaerial fixedly connected with blade when rotating with gyro wheel complex arc slide rail.

The embodiment of the utility model is further characterized in that, the maximum included angle between the blade and the mounting rack is 60-70 degrees.

The embodiment of the utility model provides a have following advantage:

1. the movable blades can enable the pressure difference between the downwind blades and the upwind blades to be larger, and the wind energy conversion efficiency is high;

2. the blade is suitable for manufacturing large-scale windmills, the blades can be combined, the cost is low, the installation is convenient, and the investment recovery period is shorter;

3. is economical and environment-friendly;

4. the elastic window is arranged on the blade, and when the wind power is overlarge, the elastic window arranged on the blade is automatically opened to reduce the pressure of the wind on the blade, so that the maximum power is limited and self-protection is not needed in a braking mode and the like;

5. the one end bottom fixed mounting that the back shaft was kept away from to the mounting bracket has the gyro wheel, subaerial fixedly connected with blade when rotating with gyro wheel complex arc slide rail, make opening and shutting of blade smooth to both ends atress can strengthen the stability of blade.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of an overall structure of a combined vertical axis moving blade windmill according to a first embodiment of the present invention;

fig. 2 is a schematic diagram of a combined vertical axis moving blade windmill according to a first embodiment of the present invention;

fig. 3 is a multi-piece combined structure diagram of a combined vertical axis moving blade windmill according to an embodiment of the present invention;

fig. 4 is a schematic view of the overall structure of a combined vertical axis moving blade windmill according to the second embodiment of the present invention;

fig. 5 is a schematic view of a combined vertical axis moving blade windmill according to the second embodiment of the present invention;

fig. 6 is a schematic structural view of a combined vertical axis moving blade windmill according to a third embodiment of the present invention;

fig. 7 is a schematic structural view of a combined vertical axis moving blade windmill according to the fourth embodiment of the present invention.

In the figure: 1. a ground surface; 2. a support shaft; 3. a mounting frame; 4. a blade; 5. a tension spring; 6. a rope; 7. flanging; 8. a bearing; 9. an auxiliary pull rope; 10. a reinforcing bar; 11. an elastic window; 12. a decompression plate; 13. a spring; 14. a fixing plate; 15. a roller; 16. an arc-shaped slide rail.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As fig. 1, a modular vertical axis movable vane windmill, including ground 1, fixed mounting support shaft 2 on 1 on ground, rotate the mounting bracket 3 of connecting on support shaft 2 and install the blade 4 of four equipartitions on mounting bracket 3, its characterized in that: one side of blade 4 articulates on mounting bracket 3, and blade 4 has contained angle and two relative blades 4 setting at the different sides of mounting bracket 3 with mounting bracket 3, fixedly connected with blade 4 rotates to the turn-ups 7 that is located blade 4 one side when lining up with mounting bracket 3 on mounting bracket 3, and fixedly connected with restricts the spacing damping device that blade 4 rotated the biggest contained angle on mounting bracket 3.

With reference to fig. 1 and 2, the windmill is divided into a forward side and an upwind side according to the rotation direction, the blades 4 on the forward side are automatically closed under the wind pressure, and the wind energy is completely converted into mechanical energy under the vertical pressure of the wind, meanwhile, the blades 4 on the upwind side are blown away by the wind and set an included angle with the wind direction, the maximum included angle between the blades 4 and the mounting frame 3 is 60-70 degrees, and the force for enabling the windmill to rotate in the forward direction can also be generated, so that the movable blades 4 can more effectively convert the wind energy into the mechanical energy.

Spacing damping device restriction blade 4 rotates the biggest contained angle and carries out the shock attenuation to blade 4, can have different structural style, provides a spacing damping device in this embodiment, and spacing damping device includes extension spring 5 of fixed connection in one side that blade 4 is close to turn-ups 7, and extension spring 5 passes through rope 6 and connects on mounting bracket 3.

In this embodiment, the rotation shaft of the blade 4 hinged on the mounting frame 3 is hinged at one end of the mounting frame 3 away from the support shaft 2 in the vertical direction.

The blades 4 are preferably made of high-strength light materials, such as carbon fiber and the like, the blades 4 are hinged to the mounting frame 3 through bearings 8, the blades can also be hinged to the mounting frame 3 through hinges, and the blades are hinged through the bearings 8 and have good mobility.

One side of extension spring 5 and rope 6 still is provided with supplementary stay cord 9, and the one end fixed connection of supplementary stay cord 9 is on blade 4, and other end fixed connection is on mounting bracket 3 for protect the rotation of blade 4, two lines can bear great power.

The rope 6 and the auxiliary rope 9 are steel wire ropes, and other high-strength ropes can be adopted. Fixedly connected with stiffener 10 on the mounting bracket 3 and between the mounting bracket 3 for consolidate the structure of mounting bracket 3, make mounting bracket 3 comparatively firm.

With reference to fig. 3, the blades 4 can be flat plates which can be spliced with each other, and can be conveniently spliced to form a large blade 4, which is more easily suitable for popularizing wind power projects.

Example two

With reference to fig. 1-5, the difference from the first embodiment is that the rotating shaft of the blades 4 hinged on the mounting frame 3 is hinged on the inner side of the top end of the mounting frame 3 along the horizontal direction, and when in operation, one of the blades 4 on two sides perpendicular to the wind direction is closed under the pressure of the wind, and the other blade is blown up under the pressure of the wind, which also achieves the effect of the first embodiment.

EXAMPLE III

With reference to fig. 6, the difference from the first embodiment is that an elastic window 11 is formed in the blade 4, an elastic plate 12 larger than the elastic window 11 is installed at the elastic window 11, the elastic plate 12 is disposed on one side of the blade 4 close to the flange 7, a spring 13 is fixedly connected to one side of the elastic plate 12 away from the elastic window 11, and one end of the spring 13 away from the elastic plate 12 is fixedly connected to a fixing plate 14 fixedly mounted on the blade 4, and when the elastic plate 12 abuts against the blade 4, the spring 13 is in a compressed state. When strong wind occurs, the elastic window 11 can automatically open the elastic sheet 12 under the action of the spring 13, so that the pressed area of the blade 4 is reduced, the rotating speed of the windmill 4 can be limited, the maximum power is limited, the self-protection is not needed in a brake mode and the like, and the overload of the generator is avoided. The larger the area of the elastic plate 12, the better, at least not less than two thirds of the area of the blade.

Example four

With reference to fig. 3 and 7, the difference from the first embodiment is that the roller 15 is fixedly installed at the bottom of the end of the mounting bracket 3 away from the supporting shaft 2, and the arc-shaped slide rail 16 matched with the roller 15 when the blade 4 rotates is fixedly connected to the ground 1, so that the opening and closing of the blade 4 are smooth, and the two ends of the blade 4 can be stressed to enhance the stability of the blade 4.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a modular vertical axis movable vane windmill, includes ground (1), fixed mounting back shaft (2) on ground (1), rotates mounting bracket (3) of connection on back shaft (2) and installs blade (4) of four equipartitions on mounting bracket (3), its characterized in that: one side of blade (4) articulates on mounting bracket (3), and blade (4) have contained angle and two relative blade (4) with mounting bracket (3) and set up the different sides in mounting bracket (3), fixedly connected with blade (4) are gone up in mounting bracket (3) and are rotated turn-ups (7) that lie in blade (4) one side when aliging with mounting bracket (3), fixedly connected with limits the spacing damping device that blade (4) rotated the biggest contained angle on mounting bracket (3).

2. The combined vertical axis moving blade windmill of claim 1 wherein: spacing damping device includes extension spring (5) of fixed connection in one side that blade (4) are close to turn-ups (7), extension spring (5) are connected on mounting bracket (3) through rope (6).

3. The combined vertical axis moving blade windmill of claim 1 wherein: the blades (4) are hinged to a rotating shaft on the mounting frame (3) along the vertical direction.

4. The combined vertical axis moving blade windmill of claim 1 wherein: the blades (4) are hinged to a rotating shaft on the mounting frame (3) along the horizontal direction.

5. A combined vertical axis moving blade windmill as claimed in claim 2 wherein: one side of extension spring (5) and rope (6) still is provided with supplementary stay cord (9), the one end fixed connection of supplementary stay cord (9) is on blade (4), and other end fixed connection is on mounting bracket (3).

6. The combined vertical axis moving blade windmill of claim 1 wherein: and reinforcing rods (10) are fixedly connected to the mounting frames (3) and between the mounting frames (3).

7. The combined vertical axis moving blade windmill of claim 1 wherein: the blades (4) are flat plates which can be spliced with each other.

8. The combined vertical axis moving blade windmill of claim 1 wherein: elastic window (11) have been seted up on blade (4), elastic window (11) department installs elastic plate (12) that are greater than elastic window (11), elastic plate (12) set up the one side that is close to turn-ups (7) in blade (4), one side fixedly connected with spring (13) of elastic window (11) are kept away from in elastic plate (12), spring (13) are compression state when fixed plate (14) and elastic plate (12) of the one end fixedly connected with fixed mounting on blade (4) that elastic plate (12) were kept away from in spring (13) support on blade (4).

9. The combined vertical axis moving blade windmill of claim 1 wherein: the mounting bracket (3) is kept away from one end bottom fixed mounting of back shaft (2) and is had gyro wheel (15), when fixedly connected with blade (4) rotated on ground (1) with gyro wheel (15) complex arc slide rail (16).

10. The combined vertical axis moving blade windmill of claim 1 wherein: the maximum included angle between the blade (4) and the mounting rack (3) is 60-70 degrees.