Wind power generation device

Abstract

The utility model relates to the technical field of wind power generation, in particular to a wind power generation device which comprises a central power generation system, at least two edge power generation systems are arranged on the periphery of the central power generation system, the central power generation system comprises a first supporting base, and a first rotating shaft is rotationally installed at the upper end of the first supporting base. The lower end of the first rotating shaft is in transmission connection with a first generator. The device has the advantages that the edge power generation systems are installed around the center power generation system, the airflow directions around the edge power generation systems are changed in the mode that the center power generation system is wide in wind receiving face and easier to start, and therefore starting of the edge power generation systems is accelerated for power generation, the wind power utilization rate is increased, and efficiency is improved; the first blade is installed on the first supporting frame through the fixing mechanism, the inclination angle of the first blade can be adjusted through the inclination angle adjusting mechanism, and the orientation of the wind receiving face is freely adjusted according to the wind power of the located area and the positions of the center power generation system and the edge power generation system.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially is concerned with a wind power generation device. BACKGROUND

[0002] Wind turbine is divided into horizontal axis and vertical axis two, H type impeller is the common form of vertical axis wind turbine, has simple structure, convenient installation and maintenance, can accept arbitrary direction wind, low noise characteristics.

[0003] The Chinese patent with the application number CN202222695991.2 discloses a vertical axis wind turbine blade, a fixing frame is connected with a blade through a fixing pin, a connecting device is fixed in the middle of the blade, the connecting device fixes and connects the first base material and the second base material of the blade through the fiber composite profile square tube and the round tube in the middle, and the fixing ring is fixed at the upper and lower ends of the blade. The fixing frame is provided with a connecting main body, flanges are welded at the upper and lower ends of the connecting main body, connecting frames are welded at the inner sides of the two flanges and the middle of the connecting main body, and square connecting flanges are welded at the outer ends of the connecting frames.

[0004] The above-mentioned patent adopts H type impeller, and the straight blade impeller has the defects of difficult low wind speed starting and poor high speed running stability due to the structure. UTILITY MODEL CONTENTS

[0005] The utility model discloses a wind power generation device to solve the above -mentioned problem.

[0006] The technical scheme of the utility model is as follows:

[0007] A wind power generation device, including central power generation system, at least two edge power generation systems are arranged around the central power generation system, the central power generation system includes first support base, the first support base upper end rotatory installation has first rotating shaft, the first rotating shaft lower end transmission coupling has first generator, the first rotating shaft side wall is fixed with at least one first support frame along the length direction, at least one fixed mechanism is fixed on the circumference of the first support frame, the first blade is fixed on one side of each fixed mechanism, one end of the first blade is arranged towards the first rotating shaft, the edge power generation system includes second support base, the second support base upper end rotatory installation has second rotating shaft, the second rotating shaft lower end transmission coupling has second generator, the second rotating shaft side wall is fixed with at least one second support frame along the length direction, and the second rotating shaft is fixed with at least two second blades around the second rotating shaft.

[0008] Further, the first support frame comprises a first sleeve ring slidably fitted with the first rotating shaft, a screw is threadedly installed on the side wall of the first sleeve ring to fix the first rotating shaft and the first sleeve ring together, at least two fixing rods are fixed in an annular array on the outer circumference of the first sleeve ring, and one fixing mechanism is detachably connected and installed at the end of each fixing rod, and a reinforcing rib plate is fixed between two adjacent fixing rods.

[0009] Further, the fixing mechanism comprises a connecting sleeve sleeved on the end of the fixing rod, a screw is threadedly installed on the side wall of the connecting sleeve to fix the connecting sleeve and the fixing rod together, a fixing frame for fixing the first blade is arranged on one side of the connecting sleeve, each fixing frame is fixed with two first support frames through two connecting sleeves, and the angle between the connecting sleeve and the fixing frame can be adjusted through one or two inclination angle adjusting mechanisms.

[0010] Further, the inclination angle adjusting mechanism comprises a locking screw threadedly installed at the end of the connecting sleeve and an adjusting plate hingedly installed at one end of the fixing frame, and a plurality of adjusting holes matched with the locking screw are formed in the adjusting plate along the length direction.

[0011] Further, a driving motor is fixed on the outer side wall of the first support base, the driving motor and the first rotating shaft are transmissionally connected through a gear set, and an electromagnetic clutch is installed between the driving motor and the gear set.

[0012] Further, the second support frame comprises a second sleeve ring slidably fitted with the second rotating shaft, a screw is threadedly installed on the side wall of the second sleeve ring to fix the second rotating shaft and the second sleeve ring together, at least two support arms are fixed in an annular array on the outer circumference of the second sleeve ring, one second blade is detachably connected and installed at the end of each support arm, and each second blade is fixed through the support arms fixed on two second sleeve rings, and two support arms on the same second blade are arranged in an "eight" shape.

[0013] Further, the second blade comprises a mounting portion fixed with the support arm, a windward portion is arranged on the outer side of the mounting portion, the mounting portion is fixed with the windward portion through a connecting portion at one end, the length of the mounting portion is shorter than the length of the windward portion, the included angle between the mounting portion and the windward portion is not more than 8°, and the mounting portion is fixed with the windward portion through a reinforcing portion at the other end.

[0014] Further, a connecting frame is further provided, and the upper ends of the first rotating shaft and the second rotating shaft are rotationally connected with the connecting frame.

[0015] Further, the first rotating shaft and the second rotating shaft are in transmission connection.

[0016] Further, the first rotating shaft and the second rotating shaft are in transmission connection.

[0017] By installing the edge power generation system around the center power generation system, the airflow direction around the edge power generation system is changed by the center power generation system which has a wide wind receiving surface and is easier to start, so that the edge power generation system is started to generate power, the wind power utilization rate is increased, and the power generation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 is a perspective view of the present application;

[0020] Figure 2 is a top view of the present application;

[0021] Figure 3 is a perspective view of the central power generation system of the utility model;

[0022] Figure 4 is a front view of the central power generation system of the utility model;

[0023] Figure 5 is a perspective view of the first support frame of the utility model;

[0024] Figure 6 is a structural schematic view of the fixing mechanism of the utility model;

[0025] Figure 7 is a perspective view of the edge power generation system of the utility model;

[0026] Figure 8 is a sectional view of the edge power generation system of the utility model;

[0027] Figure 9 is a structural schematic view of the second blade of the utility model;

[0028] Figure 10 is a perspective view of the second embodiment of the utility model;

[0029] Figure 11 is a plan view of the second embodiment of the utility model.

[0030] The reference signs are explained as follows:

[0031] 1, central power generation system; 11, first support base; 12, first generator; 13, first rotating shaft; 14, first support frame; 141, first collar; 142, fixed rod; 143, reinforcing rib plate; 15, fixing mechanism; 151, connecting sleeve; 152, fixed frame; 153, adjusting plate; 154, adjusting hole; 155, locking screw; 16, first blade; 17, electromagnetic clutch; 18, driving motor; 2, edge power generation system; 21, second support base; 22, second generator; 23, second rotating shaft; 24, second support frame; 241, second collar; 242, support arm; 25, second blade; 251, mounting portion; 252, windward portion; 253, first windward groove; 254, second windward groove; 3, connecting frame. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1:

[0034] like Figures 1-9 As shown, a wind power generation device includes a central power generation system 1, and six edge power generation systems 2 are arranged around the central power generation system 1. The central power generation system 1 includes a first support base 11. The upper end of the first support base 11 is rotatably mounted with a vertically arranged first rotating shaft 13 through a bearing. The lower end of the first rotating shaft 13 is transmission-connected to a first generator 12. Two first support frames 14 are fixed on the side wall of the first rotating shaft 13 along the length direction. Five fixing mechanisms 15 are fixed in an array on the circumference of the first support frame 14. A first blade 16 is fixed on one side of each fixing mechanism 15. The first blade 1 6 is arranged with one end facing the first rotating shaft 13 to increase the windward surface area of ​​the first blade 16, so as to facilitate starting under wind. The edge power generation system 2 includes a second support base 21. The second rotating shaft 23 is rotatably mounted on the upper end of the second support base 21. The lower end of the second rotating shaft 23 is transmission-connected to the second generator 22. Two second support frames 24 are fixed to the side walls of the second rotating shaft 23 along the length direction. Second blades 25 are fixed to the ends of the second support frames 24. Five second blades 25 are installed around each second rotating shaft 23. The wind pressure on both sides of the second blade 25 is different, and the second blade 25 is rotated by the wind pressure difference.

[0035] Preferably, the wind pressures on both sides of the central power generation system 1 and the edge power generation system 2 are different, making it easier for them to rotate under wind.

[0036] In this embodiment, the first support frame 14 includes a first ring 141 that is slidably mounted with the first rotating shaft 13. A screw that fixes the first rotating shaft 13 and the first ring 141 together is threadedly mounted on the side wall of the first ring 141. Five fixing rods 142 are fixed in a circular array on the outer circumference of the first ring 141. A fixing mechanism 15 is installed at the end of each fixing rod 142 through a detachable connection, and a reinforcing rib plate 143 is fixed between two adjacent fixing rods 142.

[0037] In the embodiment, the fixing mechanism 15 comprises a connecting sleeve 151 sleeved on the end of the fixing rod 142, a screw is screwed on the side wall of the connecting sleeve 151 to fix the connecting sleeve 151 and the fixing rod 142 together, a fixing frame 152 for fixing the first blade 16 is arranged on one side of the connecting sleeve 151, each connecting sleeve 151 can be fixed to the fixing frame 152 at one end through a pin shaft and fixed at the other end through the inclination adjusting mechanism, the connecting sleeve 151 can also be fixed to the fixing frame 152 through two inclination adjusting mechanisms, the connecting sleeve 151 and the fixing frame 152 are fixed together through two inclination adjusting mechanisms, and the included angle between the connecting sleeve 151 and the fixing frame 152 can be adjusted to adjust the windward direction of the first blade 16.

[0038] In the embodiment, the inclination adjusting mechanism comprises a locking screw 155 screwed on the end of the connecting sleeve 151 and an adjusting plate 153 hingedly arranged at one end of the fixing frame 152, the adjusting plate 153 is formed with two adjusting holes 154 along the length direction and matched with the locking screw 155, and the angle of the inclination adjusting mechanism can be quickly adjusted by adjusting the position of the locking screw 155 and the adjusting hole 154.

[0039] In the embodiment, the outer side wall of the first support base 11 is fixed with a driving motor 18, the driving motor 18 is connected with the first rotating shaft 13 through a gear set, and an electromagnetic clutch 17 is arranged between the driving motor 18 and the gear set, the electromagnetic clutch 17 is in an open state when the wind force is large to reduce the resistance when the first rotating shaft 13 rotates, and the electromagnetic clutch 17 can be controlled to be closed when the wind force is small, so that the first rotating shaft 13 is driven to rotate by the driving motor 18 to generate high-speed wind around the edge power generation system 2 to drive the edge power generation system 2 to start working, and the driving motor 18 is stopped and the electromagnetic clutch 17 is disconnected after the edge power generation system 2 works stably.

[0040] In the embodiment, the second support frame 24 comprises a second sleeve ring 241 slidably matched with the second rotating shaft 23, a screw is screwed on the side wall of the second sleeve ring 241 to fix the second rotating shaft 23 and the second sleeve ring 241 together, five support arms 242 are fixed in an annular array on the outer circumference of the second sleeve ring 241, one second blade 25 is detachably connected to the end of each support arm 242, each second blade 25 is fixed through the support arms 242 fixed on the two second sleeve rings 241, and the two support arms 242 on the same second blade 25 are arranged in an “eight” shape to adjust the positions of the two second support frames 24 according to the length of the second blade 25.

[0041] In the embodiment, the second blade 25 comprises a mounting portion 251 fixed with the support arm 242, a windward portion 252 arranged outside the mounting portion 251, and a connecting portion 253 fixed at one end of the mounting portion 251 with the windward portion 252, wherein the end face of the connecting portion 253 is arc-shaped, the length of the mounting portion 251 is shorter than that of the windward portion 252, the included angle between the mounting portion 251 and the windward portion 252 is 5°, and the other end of the mounting portion 251 is fixed with the windward portion 252 through a reinforcing portion 254, and the mounting portion 251 and the windward portion 252 are fixed with the connecting portion 253 and the reinforcing portion 254 through rivets, so that the second blade 25 is convenient for production and processing by being split into multiple components.

[0042] In the embodiment, the first rotating shaft 13 and the second rotating shaft 23 are rotatably connected with the connecting frame 3, and the central power generation system 1 and the edge power generation system 2 are connected as a whole to improve stability.

[0043] In the embodiment, the first rotating shaft 13 and the second rotating shaft 23 are in transmission connection, and the central power generation system 1 and the edge power generation system 2 can be synchronously rotated for power generation.

[0044] Embodiment two:

[0045] As shown in Figure 10 , 11 , as another embodiment of the utility model, a wind power generation device comprises a first support base 11, a first rotating shaft 13 vertically arranged is rotatably installed on the upper end of the first support base 11 through a bearing, a first generator 12 is in transmission connection with the lower end of the first rotating shaft 13, a first support frame 14 is fixed on the side wall of the first rotating shaft 13 along the length direction, five fixing mechanisms 15 are arrayed and fixed on the circumference of the first support frame 14, a first blade 16 is fixed on one side of each fixing mechanism 15, and one end of the first blade 16 is arranged towards the first rotating shaft 13, two second support frames 24 are fixed on the side wall of the first rotating shaft 13 along the length direction, five second blades 25 are fixed on the end of each second support frame 24, the plurality of second blades 25 are arrayed and distributed along the first rotating shaft 13, the length of the second support frame 24 exceeds that of the first support frame 14, the rotation radius of the second blade 25 is greater than that of the first blade 16, the first blade 16 and the second blade 25 are staggered and arranged around the first rotating shaft 13, the distance between the second blade 25 and the first rotating shaft 13 is 1.5-2 times the distance between the first blade 16 and the first rotating shaft 13, the second blade 25 has two groups, the two groups of second blades 25 are fixed through the two second support frames 24, and the first rotating shaft 13 is driven to rotate through the first blade 16 and the second blade 25, and the first generator 12 is driven to work for power generation.

[0046] The working principle of the utility model is as follows: when in use, it is fixed in the area where wind energy is rich, and when wind blows, it can drive the central power generation system 1 or the edge power generation system 2 to rotate, because the windward surface of the first blade 16 is wider, the central power generation system 1 is easier to rotate under the breeze, when the central power generation system 1 rotates, it can form vortex around the edge power generation system 2, so that the flowing direction of the wind around the central power generation system 1 changes, so that the wind flowing through the second blade 25 changes, because the wind speed of the adverse wind surface and the leeward surface flowing through the second blade 25 is different, the pressure of the airflow acting on the two surfaces is different, there is a pressure difference, under the action of the pressure difference, the edge power generation system 2 can quickly break the static balance and rotate, when the central power generation system 1 and the edge power generation system 2 rotate, the first generator 12 and the second generator 22 can generate electric energy, realize the conversion of wind energy into electric energy, because the central power generation system 1 is provided with a plurality of edge power generation systems 2 around, when the environmental wind power is small, the driving motor 18 can also be started by electric power to drive the first blade 16 to rotate to generate wind power to drive a plurality of edge power generation systems 2 to work and generate electricity.

[0047] The circuit connection related to the utility model is a common means adopted by those skilled in the art, and can be obtained by limited tests, and belongs to the prior art.

[0048] The components not described in detail in the present application are prior art.

[0049] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A wind power generation device, characterized in that: The invention comprises a central power generation system (1), wherein at least two edge power generation systems (2) are arranged around the central power generation system (1), wherein the central power generation system (1) comprises a first support base (11), wherein a first rotating shaft (13) is rotatably mounted on the upper end of the first support base (11), wherein a first generator (12) is connected to the lower end of the first rotating shaft (13), wherein at least one first support frame (14) is fixed on the side wall of the first rotating shaft (13) along the length direction, wherein at least one fixing mechanism (15) is fixed in an array on the circumference of the first support frame (14), wherein each fixing mechanism (15) is fixed on one side There is a first blade (16), one end of the first blade (16) is arranged toward the first rotating shaft (13), the edge power generation system (2) includes a second support base (21), the upper end of the second support base (21) is rotatably mounted with a second rotating shaft (23), the lower end of the second rotating shaft (23) is transmission-connected with a second generator (22), at least one second support frame (24) is fixed on the side wall of the second rotating shaft (23) along the length direction, a second blade (25) is fixed at the end of the second support frame (24), and at least two second blades (25) are mounted around each second rotating shaft (23).

2. A wind power generation device according to claim 1, characterized in that: The first support frame (14) includes a first collar (141) that is slidably mounted with the first rotating shaft (13); a screw that fixes the first rotating shaft (13) and the first collar (141) together is threadedly mounted on the side wall of the first collar (141); at least two fixing rods (142) are fixed in an annular array on the outer circumference of the first collar (141); each end of the fixing rod (142) is mounted with a fixing mechanism (15) through a detachable connection; and a reinforcing rib plate (143) is fixed between two adjacent fixing rods (142).

3. A wind power generation device according to claim 2, characterized in that: The fixing mechanism (15) comprises a connecting sleeve (151) sleeved on the end of the fixing rod (142); a screw for fixing the connecting sleeve (151) and the fixing rod (142) together is threadedly installed on the side wall of the connecting sleeve (151); a fixing frame (152) for fixing the first blade (16) is provided on one side of the connecting sleeve (151); each fixing frame (152) is fixed to two first support frames (14) through two connecting sleeves (151); the connecting sleeve (151) and the fixing frame (152) are fixed together through one or two inclination adjustment mechanisms; and the angle between the connecting sleeve (151) and the fixing frame (152) can be adjusted.

4. A wind power generation device according to claim 3, characterized in that: The tilt adjustment mechanism comprises a locking screw (155) threadedly mounted on the end of the connecting sleeve (151), an adjustment plate (153) hingedly mounted at one end of the fixed frame (152), and a plurality of adjustment holes (154) formed along the length direction of the adjustment plate (153) for mounting in conjunction with the locking screw (155).

5. The wind power generation device according to claim 1, characterized in that: A driving motor (18) is fixed on the outer wall of the first supporting base (11), and the driving motor (18) and the first rotating shaft (13) are connected via a gear set, and an electromagnetic clutch (17) is installed between the driving motor (18) and the gear set.

6. The wind power generation device according to claim 1, characterized in that: The second support frame (24) comprises a second sleeve (241) which is slidably mounted on the second rotating shaft (23); a screw is threadedly mounted on the side wall of the second sleeve (241) for fixing the second rotating shaft (23) and the second sleeve (241); at least two support arms (242) are fixed in an annular array on the outer circumference of the second sleeve (241); a second blade (25) is mounted on the end of each support arm (242) through a detachable connection; each second blade (25) is fixed by a support arm (242) fixed on two second sleeves (241); and the two support arms (242) on the same second blade (25) are arranged in an "eight" shape.

7. A wind power generation device according to claim 6, characterized in that: The second blade (25) comprises a mounting portion (251) fixed to the support arm (242); a windward portion (252) is provided on the outer side of the mounting portion (251); one end of the mounting portion (251) is fixed to the windward portion (252) via a connecting portion (253); the length of the mounting portion (251) is shorter than the length of the windward portion (252); an angle between the mounting portion (251) and the windward portion (252) does not exceed 8°; and the other end of the mounting portion (251) is fixed to the windward portion (252) via a reinforcing portion (254).

8. The wind power generation device according to claim 1, characterized in that: It also includes a connecting frame (3), and the upper ends of the first rotating shaft (13) and the second rotating shaft (23) are both rotatably connected to the connecting frame (3).

9. A wind power generation device according to claim 8, characterized in that: The first rotating shaft (13) and the second rotating shaft (23) are transmission-connected.

10. A wind power generation device, characterized in that: The invention comprises a first support base (11), wherein a vertically arranged first rotating shaft (13) is rotatably mounted on the upper end of the first support base (11) through a bearing, and a first generator (12) is connected to the lower end of the first rotating shaft (13) in a transmission manner, and at least one first support frame (14) is fixed on the side wall of the first rotating shaft (13) along the length direction, and at least one fixing mechanism (15) is fixed in an array on the circumference of the first support frame (14), and a first blade (16) is fixed on one side of each fixing mechanism (15), and one end of the first blade (16) is arranged toward the first rotating shaft (13), and at least one second support frame (24) is fixed on the side wall of the first rotating shaft (13) along the length direction, and the second support frame (24) is fixed on the side wall of the first rotating shaft (13) along the length direction. At least one second blade (25) is fixed to the end of the support frame (24), and the plurality of second blades (25) are distributed in an array along the first rotation axis (13). The length of the second support frame (24) exceeds that of the first support frame (14), and the rotation radius of the second blade (25) is greater than that of the first blade (16). The first blade (16) and the second blade (25) are staggered around the first rotation axis (13). The distance between the second blade (25) and the first rotation axis (13) is 1.5-2 times the distance between the first blade (16) and the first rotation axis (13). There is at least one group of second blades (25), and the plurality of groups of second blades (25) are fixed by the plurality of second support frames (24).

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