CN221074495U

CN221074495U - Small-sized wind power generation system

Info

Publication number: CN221074495U
Application number: CN202322963477.7U
Authority: CN
Inventors: 甘凤祝; 甘俸聿; 钟声; 叶龙; 李佳罗; 覃诗博; 谭凯奕
Original assignee: Laibin Vocational Education Center School
Current assignee: Laibin Vocational Education Center School
Priority date: 2023-11-02
Filing date: 2023-11-02
Publication date: 2024-06-04
Anticipated expiration: 2033-11-02

Abstract

The utility model discloses a small wind power generation system which comprises a wind collecting cover, a stand column and a plurality of groups of fan blades, wherein the wind collecting cover is rotatably arranged at the upper end of the stand column, a generator is arranged in the stand column, the plurality of groups of fan blades are rotatably arranged on the wind collecting cover through rotating shafts respectively, a differential mechanism is arranged in the wind collecting cover, the rotating shafts are connected with different input ends of the differential mechanism, and the output end of the differential mechanism is connected with the generator. The utility model adopts the design of a plurality of groups of fan blades, has higher utilization efficiency of wind energy, can still push the fan blades in the wind collecting cover to rotate for generating power even under the condition of weak wind power, thereby leading the wind power generation range to be wider, and synthesizes different transmission power output by the plurality of groups of fan blades by utilizing the differential mechanism and outputs the different transmission power to the generator for generating power, thereby further improving the power of the generated power.

Description

Small-sized wind power generation system

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a small wind power generation system.

Background

The wind power generation system converts and transmits wind power kinetic energy through the fan blades to realize power generation, the existing small wind power generator applied to roadside street lamps, household and the like is mostly provided with a single group of fan blades, the number of the fan blades is three to five, and the distance between the fan blades is also provided with larger gaps, so that some wind energy cannot be converted into electric energy when flowing through the wind power generation group, and even the fan blades cannot be blown to rotate to generate power when the wind power is smaller. The prior art with the patent number of CN111828255A discloses a weak wind collecting and generating technology and a device, wherein a plurality of groups of small blades which coaxially rotate are arranged inside a high-strength light and thin wind converging arc-shaped cover so as to stably generate power. The arc-shaped cover increases the collected air quantity, but a plurality of groups of fan blades are designed to coaxially rotate, so that mutual influence exists, the wind power can be ensured to drive all the fan blades to rotate at the same time to generate electricity, and the purpose of generating electricity by using smaller wind power cannot be realized.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems, and provides a small wind power generation system, which has wider wind power generation range and higher generation power through the design of a plurality of blades and a differential mechanism.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The utility model provides a small-size wind power generation system, includes collection fan housing, stand and multiunit fan blade, collection fan housing rotates and installs on the upper end of stand, install the generator in the stand, multiunit the fan blade rotates through the pivot respectively and installs on collection fan housing, be equipped with the differential mechanism in the collection fan housing, multiunit the different inputs of differential mechanism are all connected to the pivot, the generator is connected to the output of differential mechanism.

As the improvement of the technical scheme, the fan blades comprise a front driving blade and a rear driving blade, the rotating shaft comprises a front input shaft and a rear input shaft which are rotatably arranged in the wind collecting cover and located on the same axis, the front driving blade is arranged on the front input shaft and located outside the input end of the wind collecting cover, the rear driving blade is arranged on the rear input shaft and located inside the output end of the wind collecting cover, and one ends of the front input shaft and the rear input shaft are respectively connected with different input ends of the differential mechanism.

As an improvement of the technical scheme, a shaft bracket is arranged in the wind collecting cover, and the front input shaft, the rear input shaft and the output shaft are all rotatably arranged on the shaft bracket.

As the improvement of above-mentioned technical scheme, differential mechanism includes output gear and two sets of input gear, two sets of input gear installs respectively on preceding input shaft and back input shaft and the flank of tooth sets up relatively, the bevel gear is installed to preceding input shaft overhead sleeve, be connected with two sets of planetary gear through horizontal pole overhead sleeve on the bevel gear, all planetary gear all with two sets of input gear meshing, the collection fan housing internal rotation is installed and is connected the output shaft of generator, output gear installs on the output shaft and with bevel gear meshing.

As the improvement of above-mentioned technical scheme, the pedestal includes two sets of support frames, two sets of the support frames are all installed in the collection fan housing, two sets of the support frames are located and are equipped with preceding shaft hole and back shaft hole respectively on the position of same axis, preceding input shaft and back input shaft rotate through first bearing respectively and install in preceding shaft hole and back shaft hole.

As an improvement of the technical scheme, a connecting frame is arranged between the two groups of supporting frames, an output shaft hole is formed in the connecting frame, and the output shaft is rotatably arranged in the output shaft hole through a second bearing.

As an improvement of the technical scheme, the wind collecting cover is provided with the mounting hole, and the upper end of the upright post is rotatably mounted in the mounting hole through the bearing.

As an improvement of the technical scheme, the output port of the wind collecting cover is communicated with the tail wing.

As an improvement of the above technical solution, the aperture of the wind collecting cover is gradually reduced in the output direction.

As an improvement of the technical scheme, the diameter of the front driving blade is larger than that of the rear driving blade.

Compared with the prior art, the application has the beneficial effects that:

The small wind power generation system adopts the design of a plurality of groups of wind blades, wind power finishes the first kinetic energy conversion of wind energy through the wind blades in the front, the flowing wind power is collected through the wind collecting cover and is blown to the wind blades in the rear at a higher speed so as to perform the second kinetic energy conversion of the wind energy, the wind energy utilization efficiency is higher, and even under the condition of weak wind power, the wind blades in the wind collecting cover can still be pushed to rotate to generate electricity, so that the wind power generation range is wider. In addition, different transmission powers output by a plurality of groups of fan blades are synthesized by utilizing the differential mechanism and output to the generator for power generation, so that the power of power generation is further improved.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a front view of an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a differential mechanism according to an embodiment of the present utility model;

Fig. 4 is a schematic structural view of a wind collecting hood and a shaft bracket according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present, as well as being disposed not only in an intermediate position but also in both ends as far as they are within the scope defined by the intermediate position. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, the present utility model provides a small wind power generation system, which comprises a wind collecting cover 100, a stand column 200 and a plurality of groups of fan blades 110, wherein the wind collecting cover 100 is rotatably installed at the upper end of the stand column 200, a generator 210 is installed in the stand column 200, a plurality of groups of fan blades 110 are rotatably installed on the wind collecting cover 100 through rotating shafts 120 respectively, a differential 300 is arranged in the wind collecting cover 100, a plurality of groups of rotating shafts 120 are all connected with different input ends of the differential 300, and an output end of the differential 300 is connected with the generator 210. The power generation system is suitable for small-sized power generation requirements of street lamps, household appliances and the like.

Referring to fig. 1 and 2, in one embodiment of the present application, the plurality of sets of fan blades 110 includes a front driving blade 111 and a rear driving blade 112, the rotating shaft 120 includes a front input shaft 121 and a rear input shaft 122 rotatably mounted in the wind collecting housing 100 and located on the same axis, the front driving blade 111 is mounted on the front input shaft 121 and located outside the input end of the wind collecting housing 100, the rear driving blade 112 is mounted on the rear input shaft 122 and located inside the output end of the wind collecting housing 100, and one ends of the front input shaft 121 and the rear input shaft 122 are respectively connected to different input ends of the differential 300. Wherein, the rotation of the front driving blade 111 and the rear driving blade 112 are independent and do not interfere with each other. Furthermore, the wind collecting cover 100 may be covered with light materials such as aluminum skin, and the caliber of the wind collecting cover 100 is gradually reduced in the output direction, i.e. in a conical shape, so as to achieve the purpose of wind collecting; in addition, the diameter of the front driving vane 111 is larger than that of the rear driving vane 112, and the front driving vane 111 is arranged outside the input port of the wind collecting hood 100, and wind power flows through the front driving vane 111 with larger diameter, enters the wind collecting hood 100 to be collected again, and is blown to the rear driving vane 112 with smaller diameter at a larger speed, so that the rear driving vane 112 rotates, and the wind power utilization efficiency is improved.

Referring to fig. 3, in one embodiment of the present application, the differential 300 includes an output gear 320 and two sets of input gears 310, the two sets of input gears 310 are respectively mounted on the front input shaft 121 and the rear input shaft 122, tooth surfaces of the two sets of input gears are opposite, a bevel gear 330 is mounted on the front input shaft 121 in a sleeved manner, two sets of planetary gears 340 are connected on the bevel gear 330 in a sleeved manner through a cross bar 331, all the planetary gears 340 are meshed with the two sets of input gears 310, an output shaft 130 connected with the generator 210 is rotatably mounted on the wind collecting cover 100, and the output gear 320 is mounted on the output shaft 130 and meshed with the bevel gear 330. Under the action of wind force, the front driving blade 111 and the rear driving blade 112 will respectively drive the front input shaft 121 and the rear input shaft 122 to rotate, and as the rotation speeds of the front driving blade 111 and the rear driving blade 112 may be different, a rotation power output is synthesized and transmitted to the output gear 320 through the rotation engagement of the planetary gear 340 and the input gear 310, and then transmitted to the generator 210 through the output shaft 130 to generate electricity, so that the movement of the front driving blade 111 and the rear driving blade 112 is not interfered with each other, the rotation force can be stably output, the wind energy utilization efficiency will be higher, more electricity can be emitted under the same wind force condition, and the power is larger. To reduce the energy loss of the mechanical transmission, differential 300 may use a lightweight, stiff and wear resistant material.

Referring further to fig. 4, for easy installation, the axle bracket 400 is installed in the wind collecting housing 100, the front input shaft 121, the rear input shaft 122 and the output shaft 130 are rotatably installed on the axle bracket 400, and the differential 300 is also supported by the axle bracket 400. Specifically, the shaft bracket 400 includes two sets of support frames 410, the two sets of support frames 410 are both installed in the wind collecting housing 100, the two sets of support frames 410 are respectively provided with a front shaft hole 411 and a rear shaft hole 412 at the same axial position, and the front input shaft 121 and the rear input shaft 122 are respectively rotatably installed in the front shaft hole 411 and the rear shaft hole 412 through a first bearing 123. A connecting frame 420 is disposed between the two groups of support frames 410, an output shaft hole 421 is formed on the connecting frame 420, and the output shaft 130 is rotatably mounted in the output shaft hole 421 through a second bearing 131. The support frame 410 may adopt a cross structure, and is supported inside the wind collecting housing 100, and the front shaft hole 411 and the rear shaft hole 412 are disposed at the center of the cross, so as to avoid the influence of the frame on the wind flow in the wind collecting housing 100.

Further, in order to ensure that the wind collecting housing 100 can rotate to face the wind direction, the wind collecting housing 100 is provided with a mounting hole 140, and the upper end of the upright post 200 is rotatably mounted in the mounting hole 140 through an end bearing 141. And the output port of the wind collecting cover 100 is communicated with the tail wing 150, the wind collecting cover 100 is in a conical shape, and the wind collecting cover can also play a role in directional steering of the tail wing 150, so that the fan blade 110 can always face the wind direction, can smoothly face the wind direction along with the change of the wind direction, and overcomes the shaking generated under the severe condition of the wind. Preferably, the rear driving blade 112 may be installed in a cylindrical ventilation opening where the wind collecting housing 100 and the tail wing 150 are connected, and it is ensured that the collected wind can be vertically blown against the rear driving blade 112, so as to further improve the wind energy utilization efficiency.

According to the small wind power generation system, the design of the plurality of groups of wind blades 110 is adopted, wind power is converted from the first kinetic energy of wind energy through the front wind blades 110, the flowing wind power is collected through the wind collecting cover 100 and is blown to the rear wind blades 110 at a higher speed, so that the second kinetic energy conversion of the wind energy is carried out, the utilization efficiency of the wind energy is higher, and even under the condition of weak wind power, the wind blades 110 in the wind collecting cover 100 can be still pushed to rotate to generate electricity, so that the wind power generation range is wider. In addition, the differential 300 is utilized to combine different transmission power output by the plurality of groups of fan blades 110, and the different transmission power is output to the generator 210 for generating electricity, so that the power of the generated electricity is further improved.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present utility model should be covered in the scope of the technical solution of the present utility model.

Claims

1. The utility model provides a small-size wind power generation system, its characterized in that includes collection fan housing, stand and multiunit fan blade, collection fan housing rotates and installs on the upper end of stand, install the generator in the stand, multiunit the fan blade rotates through the pivot respectively and installs on collection fan housing, be equipped with the differential mechanism in the collection fan housing, multiunit the different input of differential mechanism is all connected to the pivot, the generator is connected to the output of differential mechanism.

2. The miniature wind power generation system according to claim 1, wherein the plurality of sets of blades comprise a front driving blade and a rear driving blade, the rotating shaft comprises a front input shaft and a rear input shaft which are rotatably installed in the wind collecting cover and located on the same axis, the front driving blade is installed on the front input shaft and located outside the input end of the wind collecting cover, the rear driving blade is installed on the rear input shaft and located inside the output end of the wind collecting cover, and one ends of the front input shaft and the rear input shaft are respectively connected with different input ends of the differential mechanism.

3. A miniature wind power generation system according to claim 2 wherein a shaft housing is mounted in the wind collecting housing, and the front input shaft, rear input shaft and output shaft are rotatably mounted on the shaft housing.

4. A miniature wind power generation system according to claim 3 wherein said differential comprises an output gear and two sets of input gears, said two sets of input gears being mounted on the front and rear input shafts respectively and having opposite tooth surfaces, said front input shaft being provided with a bevel gear, said bevel gear being provided with two sets of planetary gears connected by a cross bar, all of said planetary gears being in mesh with said two sets of input gears, said wind-collecting housing being rotatably mounted with an output shaft connected to said generator, said output gear being mounted on said output shaft and in mesh with said bevel gear.

5. A small wind power generation system according to claim 3, wherein the shaft bracket comprises two groups of support frames, the two groups of support frames are all installed in the wind collecting cover, the two groups of support frames are respectively provided with a front shaft hole and a rear shaft hole at the same axis, and the front input shaft and the rear input shaft are respectively installed in the front shaft hole and the rear shaft hole in a rotating manner through first bearings.

6. The small wind power generation system according to claim 5, wherein a connecting frame is arranged between the two groups of supporting frames, an output shaft hole is formed in the connecting frame, and the output shaft is rotatably installed in the output shaft hole through a second bearing.

7. The small wind power generation system according to claim 1, wherein the wind collecting cover is provided with a mounting hole, and the upper end of the upright post is rotatably mounted in the mounting hole through a bearing.

8. The miniature wind power generation system of claim 1, wherein said wind-collecting housing outlet is in communication with a tail.

9. A small wind power generation system according to claim 1, wherein the diameter of the wind collecting cover is gradually reduced in the output direction.

10. A miniature wind power generation system according to claim 2 wherein the diameter of the front drive vane is greater than the diameter of the rear drive vane.