CN212615159U

CN212615159U - Wind power generation device with blades with variable angles

Info

Publication number: CN212615159U
Application number: CN202021559929.5U
Authority: CN
Inventors: 王树平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-02-26
Anticipated expiration: 2030-07-31

Abstract

The utility model provides a wind power generation device with variable angle blades, which comprises a semicircular smooth bracket, wherein the semicircular smooth bracket comprises a bearing, the bearing is arranged at the outer side of a tower pole and is rotationally connected with the tower pole, the circular surface where a semicircular supporting rod is arranged is inclined with the horizontal surface, and an empennage is arranged at the lower end of the semicircular supporting rod; the rotating disc is arranged at the top end of the tower pole and is rotationally connected with the bearing, the wheel handle is uniformly and fixedly arranged on the side wall of the rotating disc, and the blades are rotationally connected with the head end of the wheel handle; the bottom of the tower pole is provided with a generator set, and the bottom of the transmission rod penetrates through the tower pole to be connected with the generator set. The utility model discloses can be according to the angle of wind direction condition automatic adjustment blade, the blade expandes the large tracts of land windward rotatory during the windward, and the blade is folded to and is reduced the upwind windage with ground parallel during the upwind, realizes the maximize that the wind energy utilized.

Description

Wind power generation device with blades with variable angles

Technical Field

The utility model belongs to the technical field of wind power generation technique and specifically relates to a wind power generation set of variable angle of blade is related to.

Background

Wind power generation is the power generation mode of turning into electric energy with wind energy, and wind power generation set needs the blade to rotate under the blowing of wind-force in order to drive generating set and generate electricity, and traditional wind power generation set's blade arrangement mode is mostly the impeller shaft and is the level setting, and the blade is being the rotation in the perpendicular plane with ground, and this kind of arrangement mode is in order to make the blade can the free rotation, and this kind of wind power generation set's height is generally all very high, and the construction cost is also very high.

Compared with the arrangement mode that the impeller shaft of the wind power generation device is horizontally arranged and the arrangement mode that the impeller shaft is vertically arranged, the wind power generation device which adopts the blades to rotate in the plane parallel to the horizontal plane has less application, and the blades inevitably rotate against the wind in the horizontal plane, so that the wind power generation device adopting the blade arrangement mode is rare.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind power generation set of variable angle of blade, this wind power generation set can be according to the angle of wind direction condition automatic adjustment blade, and the blade expandes the large tracts of land windward rotatory when the windward, and the blade is folded to reduce the windward resistance with ground parallel when the upwind, realizes the maximize that the wind energy utilized.

The utility model provides a wind power generation device with variable angle blades, which comprises a tower pole, a semicircular smooth bracket, a wind wheel and a transmission rod,

the semicircular smooth bracket comprises a bearing, a semicircular supporting rod and an empennage, the bearing is installed on the outer side of the tower rod and is rotatably connected with the tower rod, the inner side of the semicircular supporting rod is fixedly connected with the bearing, the circular surface where the semicircular supporting rod is located is obliquely arranged with the horizontal plane, the empennage is fixedly connected with the semicircular supporting rod, and the empennage is installed at the lower end of the semicircular supporting rod;

the wind wheel comprises a rotary disc, a wheel handle and blades, the rotary disc is installed at the top end of the tower pole and is in rotating connection with the tower pole, the wheel handle is uniformly and fixedly installed on the side wall of the rotary disc, the blades are in rotating connection with the head end of the wheel handle, and the radius of the semicircular support rod is larger than the distance from the inner side edge of each blade to the center of the rotary disc and smaller than the distance from the outer side edge of each blade to the center of the rotary disc;

the top of transfer line runs through the carousel just the transfer line with carousel fixed connection, the bottom of tower pole is equipped with generating set, the bottom of transfer line runs through the tower pole with generating set is connected.

Furthermore, the turntable is connected with the top of the tower rod through a rotary support, the top of the tower rod is fixedly connected with an outer ring of the rotary support, and the bottom of the turntable is fixedly connected with an inner ring of the rotary support.

Further, the bottom of the transmission rod is connected with the generator set through a bevel gear.

Furthermore, the round surface of the semicircular support rod forms an included angle of 10-20 degrees with the horizontal plane.

Furthermore, the semicircular support rod is fixedly connected with the bearing through a connecting rod.

Furthermore, the blades are connected with the wheel handle through connecting rings, the connecting rings are fixed below the wheel handle, sleeves are integrally formed on the back of the blades, and the sleeves are hinged with the connecting rings at the two ends of the sleeves through pin shafts.

Further, the sleeve is located above the middle of the blade.

Furthermore, a semicircular balancing weight is further fixed on the semicircular smooth bracket, the radius of the semicircular balancing weight is smaller than the distance from the blade to the rotating disc, and the semicircular balancing weight is arranged on one side, opposite to the semicircular supporting rod, of the semicircular supporting rod.

The technical scheme of the utility model can be according to the angle of wind direction condition automatic adjustment blade, the blade is at the rotation in-process along with the wind power, block to the blade bottom through semi-circular die-pin when the upwind scope and make it rotate gradually with the horizontal plane parallel state along the wheel handle, and can keep this state in semi-circular die-pin until leaving the upwind region, when the blade leaves the upwind region, the blade breaks away from on semi-circular die-pin, the blade resumes under self action of gravity with the horizontal plane vertical form, and keep the biggest windward side under the combined action of wind force effect and go-between, it is rotatory that the blade expandes the large tracts of land windward when can making this wind power generation set windward through the aforesaid setting, and the blade is folded to and is reduced the upwind resistance with ground parallel during the upwind, realize the maximize that wind energy utilized.

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 embodiments or the technical solutions in the prior art will be briefly described 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 view of the present invention;

FIG. 2 is a schematic structural view of the tower of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a schematic view of the connection structure of the blade and the wheel handle of the present invention;

FIG. 5 is a schematic view showing the relationship between the blades and the semicircular supporting rods;

description of reference numerals:

in the figure: 1-tower pole, 2-semicircular smooth bracket, 3-wind wheel, 4-transmission rod, 5-bearing, 6-semicircular supporting rod, 7-empennage, 8-connecting rod, 9-rotary support, 10-rotary table, 11-wheel handle, 12-blade, 13-semicircular balancing weight, 14-connecting ring, 15-sleeve, 16-pin shaft and 17-generator set;

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 2, 3, 4 and 5:

a wind power generation device with blades with variable angles comprises a tower pole 1, a semicircular smooth bracket 2, a wind wheel 3 and a transmission rod 4, wherein the wind wheel 3 is arranged at the top of the tower pole 1, and the transmission rod 4 penetrates through the wind wheel 3 and the tower pole 1 from top to bottom.

The semicircular smooth bracket 2 comprises a bearing 5, a semicircular supporting rod 6 and a tail wing 7, the bearing 5 is installed on the outer side of the tower rod 1 and is rotatably connected with the tower rod 1, the inner side of the semicircular supporting rod 6 is fixedly connected with the bearing 5 through a connecting rod 8, the semicircular supporting rod 6 and the bearing 5 are concentrically arranged, the circular surface where the semicircular supporting rod 6 is located is obliquely arranged with the horizontal plane, the inclination angle of the semicircular supporting rod 6 is not too large, and the included angle between the semicircular supporting rod 6 and the horizontal plane is 10-20 degrees. The semicircular supporting rod 6 is designed into an inclined structure, so that the lower part of the blade can be smoothly blocked by the semicircular supporting rod when the blade rotates to the lower end of the semicircular supporting rod 6, and the blade gradually tends to be parallel to the horizontal plane in the rotating process, so that the impeller can rotate without being influenced by upwind resistance when the blade rotates upwind.

The mounting position of the tail wing 7 is positioned at the lower end of the semicircular supporting rod 6. Due to the arrangement of the tail wing 7, the position of the semicircular supporting rod can be kept to be adapted to the wind direction constantly under the action of the tail wing, the tail wing 7 can drive the semicircular supporting rod 6 to rotate 360 degrees in the horizontal plane, and the contact position of the blade and the semicircular supporting rod is just positioned when the blade is changed from a windward angle to a headwind angle. The function of the tail wing realizes the adjustment of the angle change and the wind direction change of the blades, and ensures that the blades can determine the corresponding angle adjustment opportunity according to the change of the wind direction.

In order to improve the flexibility of rotation between the semicircular smooth bracket 2 and the tower pole 1, the semicircular smooth bracket 2 is connected with the tower pole 1 through the bearing 5, so that the semicircular smooth bracket 2 and the tower pole 1 can be freely rotated, and the tower pole 1 cannot block the rotation of the semicircular smooth bracket 2.

The wind wheel 3 comprises a rotary table 10, a wheel handle 11 and blades 12, the rotary table 10 is installed at the top end of the tower pole 1 and is rotationally connected with the tower pole 1, the rotary table 10 is connected with the top 5 of the tower pole 1 through a rotary support 9, the top of the tower pole 1 is fixedly connected with the outer ring of the rotary support 9, and the bottom of the rotary table 10 is fixedly connected with the inner ring of the rotary support 9. Through the setting of gyration support 9, can guarantee between wind wheel 3 and the tower pole 1 can the free rotation, tower pole 1 can not hinder the rotation of wind wheel 3.

The slewing bearing that adopts in this embodiment is the slewing bearing of universal use, and slewing bearing is also called slewing bearing, and some people also call it: the rotary bearing is a large bearing capable of bearing comprehensive load and can simultaneously bear larger axial and radial loads and overturning moment. The structure of the device can be used by those skilled in the art through reasonable selection, and detailed description of the specific structure is omitted.

In order to improve the stability of the semicircular smooth bracket in the rotating process, a semicircular balancing weight 13 is further fixed on the bearing 5 of the semicircular smooth bracket 2, the radius of the semicircular balancing weight 13 is smaller than the distance from the blade 12 to the rotating disc 10, and the semicircular balancing weight 13 is arranged on one side, opposite to the semicircular supporting rod 6. The stability of the bearing 5 can be kept by the semicircular balancing weight 13 in the rotation process of the semicircular supporting rod 6, and the overturning or the shifting caused by uneven stress on two sides of the bearing 5 can be avoided.

The wheel handles 11 are uniformly and fixedly arranged on the side wall of the rotary table 10, the blades 12 are rotatably connected with the wheel handles 11 through connecting rings 14 and can rotate by 0-90 degrees along the connection parts with the wheel handles 11, the connecting rings 14 are fixed below the wheel handles 11, sleeves 15 are integrally formed on the back surfaces of the blades 12, the sleeves 15 are hinged with the connecting rings 14 at the two ends of the sleeves 15 through pin shafts 16, and the sleeves 15 are positioned above the middles of the blades 12. The blade 12 can rotate with the wheel handle 11 through the pin 16, and meanwhile, when the blade 12 rotates to form an included angle of 90 degrees with the horizontal plane, the back of the blade 12 is in contact with the connecting ring 14 and the wheel handle 11, and the connecting ring 14 and the wheel handle 11 are fixedly connected and can limit the blade 12, so that the blade 12 is kept at an angle of 90 degrees with the horizontal plane. At this time, the blade 12 has the largest windward side, and can be driven by wind energy to rotate smoothly, which is beneficial to efficiently converting the wind energy into electric energy.

The radius of the semicircular supporting rod 6 is greater than the distance from the inner side edge of the blade 12 to the center of the rotary table 10, and the radius of the semicircular supporting rod 6 is less than the distance from the outer side edge of the blade 12 to the center of the rotary table 10; the radius of the semicircular supporting rod 6 is within the range, so that when the blade 12 rotates to the lower end of the semicircular supporting rod 6 along the clockwise direction, as shown in fig. 5, the walking track of the blade along the semicircular supporting rod 6 is approximately depicted as a linear type, the bottom of the blade 12 is blocked by the semicircular supporting rod 6, the blade 12 gradually rotates from an angle of 90 degrees with the horizontal plane to a state of 0 degree with the horizontal plane under the driving of the continuous rotation of the impeller 3, in the process, the blade 12 above the semicircular supporting rod 6 is in a state of 0 degree or a small angle with the horizontal plane, the influence of the upwind can be well overcome, and at the moment, the blade 12 rotates along the upwind direction, but can not be blocked by the wind power, and can smoothly pass through the upwind area.

The bottom of tower pole 1 is equipped with generating set 17, the bottom of transfer line 4 runs through tower pole 1 and is connected with generating set 17 through the bevel gear, the top of transfer line 4 runs through carousel 10 and transfer line 4 and carousel 10 fixed connection, blade 12 on the wind wheel 3 lasts to rotate under the wind-force effect to drive the wind wheel 3 and rotate, the rotation of wind wheel 3 reaches transfer line 4, transfer line 4 is connected with generating set through the bevel gear of bottom, drive generating set electricity generation, thereby the realization turns into the electric energy with wind energy.

Meanwhile, as shown in fig. 2, in order to improve the connection strength between the wheel shank 11 and the rotary disk 10, a traction wire (not shown in fig. 1) may be pulled between the top of the transmission rod 4 and the wheel shank 11 to improve the support strength of the wheel shank 11 to the blade, so as to prevent the wheel shank 11 from being broken or damaged by external force.

In the application, the general height of the tower pole is 5m-120m, the number of the blades can be 6 to 8, the radius of the rotary table 10 is 1m to 30m, the length of the wheel shank can be selected according to actual use scenes, the general length range is 10m, 20m or 30m, and the area of the blades can be selected from 1 square meter to 60 square meters according to actual use conditions.

This device is at the during operation:

the tail wing 7 keeps a fixed position along the wind direction under the action of wind power, and meanwhile, if the wind direction changes, the position of the tail wing 7 also changes, and the semicircular smooth bracket 2 can rotate 360 degrees on the horizontal plane under the action of the tail wing 7, so that the position which is proper to the direction is kept at any time.

Because the semicircular supporting rod 6 is fixed on the semicircular smooth bracket 2, and the tail wing 7 is arranged at the lower end of the semicircular supporting rod 6, the tail wing 7 can be used for adjusting the direction actually by fixing the position of the semicircular supporting rod 6, so that the connecting line of two end points of the semicircular supporting rod 6 can be kept in a state of being parallel to the direction at any time.

On the premise of the positions of the tail wing 7 and the semicircular supporting rod 6, the blades on the wind wheel 3 rotate under the blowing of wind power, and the rotation principle of the blades 12 is as follows:

the blades 12 close to the higher end of the semicircular supporting rod 6 can automatically rotate around the pin shaft 16 to a state of 90 degrees with the horizontal plane under the action of self gravity (the sleeve 15 is positioned above the middle part of the blades 12), and at the moment, a plurality of blades 12 at the position have the largest windward side and can be driven by wind energy to smoothly rotate to drive the wind wheel 3 to rotate clockwise; when the blade 12 rotates to contact with the lower end of the semicircular supporting rod 6, the blade 12 just leaves the range driven by wind power at the moment, namely the upwind stage is about to enter, in order to avoid the upwind influence on the blade 12, the blade 12 is driven by the wind wheel 3 to continue rotating, the bottom of the blade 12 is blocked by the semicircular supporting rod 6, the blade starts to rotate along the pin shaft 16, and the whole blade 12 gradually rotates to be parallel to the semicircular supporting rod 6 and form an angle parallel to the horizontal plane. At this moment, the upwind resistance of the blades 12 is very small and can be ignored, the blades 12 on the opposite side of the semicircular supporting rod 6 can drive the wind wheel 3 to rotate under the driving of wind power, when the blades 12 on the semicircular supporting rod 6 rotate to the higher end of the semicircular supporting rod 6 and fall off from the semicircular supporting rod 6, the blades 12 can restore to the state of forming 90 degrees with the horizontal plane again, the blades enter the range of wind power driving again, the circulation is repeated in sequence, the blades 12 on the wind wheel 3 can change in sequence, but the blades 12 always drive the wind wheel 3 under the action of the wind power at every moment.

The top of the transmission rod 4 is fixedly connected with the wind wheel 3, the blades 12 on the wind wheel 3 continuously rotate under the action of wind power so as to drive the wind wheel 3 to rotate, the rotation of the wind wheel 3 is transmitted to the transmission rod 4, the transmission rod 4 is connected with the generator set through the bevel gear at the bottom to drive the generator set to generate power, and therefore the purpose that the wind energy is converted into the electric energy is achieved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A wind power generation device with a variable angle blade is characterized in that: comprises a tower pole, a semicircular smooth bracket, a wind wheel and a transmission rod,

2. A variable-angle blade wind turbine generator as claimed in claim 1, wherein: the rotary table is connected with the top of the tower rod through a rotary support, the top of the tower rod is fixedly connected with an outer ring of the rotary support, and the bottom of the rotary table is fixedly connected with an inner ring of the rotary support.

3. A variable-angle blade wind turbine generator as claimed in claim 1, wherein: the bottom of the transmission rod is connected with the generator set through a bevel gear.

4. A variable-angle blade wind turbine generator as claimed in claim 1, wherein: the round surface of the semicircular support rod forms an included angle of 10-20 degrees with the horizontal plane.

5. A variable-angle blade wind turbine generator as claimed in claim 1, wherein: the semicircular support rod is fixedly connected with the bearing through a connecting rod.

6. A variable-angle blade wind turbine generator as claimed in claim 1, wherein: the blade is connected with the wheel handle through a connecting ring, the connecting ring is fixed below the wheel handle, a sleeve is integrally formed on the back of the blade, and the sleeve is hinged with the connecting rings at two ends of the sleeve through a pin shaft.

7. The wind power generation device with variable blade angle according to claim 6, wherein: the sleeve is located above the middle of the blade.

8. A variable-angle blade wind turbine generator as claimed in claim 1, wherein: the semicircular smooth bracket is also fixedly provided with a semicircular balancing weight, the radius of the semicircular balancing weight is smaller than the distance from the blade to the rotating disc, and the semicircular balancing weight is arranged on one side opposite to the semicircular supporting rod.