Wind power generation device

Abstract

The invention relates to the technical field of wind power generation, and discloses a wind power generation device which comprises a connecting shaft II, the connecting shaft II is movably arranged on the outer surface of a shell in a sleeving mode, and reversing fan blades are fixedly installed at the position, located on the outer side of the shell, of one end of the connecting shaft II. A first bevel gear is fixedly installed at the position, located in the inner cavity of the shell, of the other end of the connecting shaft II, and the first bevel gear is meshed with the adjusting fluted disc. Torque generated by the reversely-rotating fan blades overcomes the elastic force of a reset spring and drives the whole adjusting device to rotate, so that a connecting shaft III is driven to rotate along the axis of the connecting shaft III, a mounting shaft is driven to rotate, and the deflection angle of the fan blades is changed; therefore, the deflection angle of the fan blades can be automatically changed and the torque generated by the fan blades can be reduced under the condition that the wind speed is increased, the problem of equipment damage caused by overhigh rotating speed of the device due to overhigh wind speed is avoided, and the stability of the device in the running process is improved.

Description

[0001] The patent application for this invention is a divisional application. The original application number is 202411028918.7. The application date is July 30, 2024. The name of the invention is a wind power generation device. Technical Field

[0002] The present application relates to the technical field of wind power generation, and in particular to a wind power generation device. Background Art

[0003] Wind power generation is the cleanest energy in today's society and has a very broad prospect of use. Traditional wind power generation consists of columns, blades, main shafts, acceleration gear sets, generator sets, wind force and direction detectors, grid-connected equipment and control equipment. During the power generation process, the airflow and the blades drive the main shaft to rotate, and the generator set is driven by the acceleration gear set to generate electricity. The generated electricity is transmitted to the power grid through the grid-connected equipment. In addition, the wind force and direction detector can detect wind force and direction in real time, and adjust the position of the unit through the control equipment. This type of wind power generation device has the advantages of simple structure, easy use and low cost, and is currently the most widely applicable one.

[0004] Although the existing wind power generation devices have many of the above-mentioned advantages, they still have certain limitations in actual use. When the wind speed increases, the existing wind motors cannot automatically change the deflection angle of the fan blades in real time, nor can they reduce the torque of the fan blades. The equipment is easily worn or even damaged due to excessive wind speed and excessive rotation speed of the device. Summary of the invention

[0005] The technical solution of the present invention to solve the above technical problems is as follows: comprising a connecting steel sleeve, one end of the connecting steel sleeve is fixedly connected to a windward front end, a travel sleeve is fixedly installed in the windward front end, an adjusting device is connected in the travel sleeve, the other end of the connecting steel sleeve is fixedly connected to a connecting outer shaft, a power generation chamber is sleeved on the connecting outer shaft, one end of the adjusting device is fixedly installed with a transmission inner shaft, one end of the transmission inner shaft is installed with a driving device, a locking card seat is fixedly installed in the adjusting device, a connecting base is provided outside the adjusting device, and a rotating device is fixedly connected to the connecting base;

[0006] The driving device comprises a shell, a reversing device is sleeved on the shell, an adjusting motor is fixedly installed in the shell, an adjusting gear plate is fixedly installed on the output shaft of the adjusting motor, and a windward plate fixedly connected to the transmission inner shaft is fixedly installed on one side of the shell.

[0007] Preferably, the reversing device includes a connecting shaft II, which is movably connected to the housing, one end of the connecting shaft II is fixedly provided with a reversing fan blade, and the other end of the connecting shaft II is fixedly provided with a first bevel gear meshing with the adjusting gear disc.

[0008] Preferably, the adjusting device includes a stroke shaft, which is movably mounted in a stroke sleeve, a reset spring is provided at one end of the stroke shaft, one end of the reset spring is fixedly connected to the stroke sleeve, a locking transmission device is fixedly installed at one end of the stroke shaft, a locking disk is fixedly installed at one end of the locking transmission device, one side of the locking disk is fixedly connected to the transmission inner shaft, a protrusion for cooperating in locking is provided on the locking disk, and the locking transmission device includes a connecting shaft I, and a transmission bevel gear and a locking bevel gear are respectively provided at both ends of the connecting shaft I.

[0009] Preferably, the rotating device includes a connecting shaft III, a second bevel gear is fixedly provided at the bottom of the connecting shaft III, a mounting shaft is fixedly provided at the top of the connecting shaft III, a fan blade is fixedly provided at the top of the mounting shaft, a bearing connecting seat fixedly connected to the connecting base is also sleeved on the mounting shaft, the second bevel gear is combined with the locking transmission device, and the inclination direction of the fan blade is opposite to the inclination direction of the reversing device.

[0010] Preferably, when the adjusting device is in the initial position, the locking bevel gear is meshed with the second bevel gear, and the locking seat is matched with the locking plate. When the adjusting device moves to the right, the transmission bevel gear is meshed with the second bevel gear, and the locking seat is disengaged from the locking plate.

[0011] This application has the following beneficial effects:

[0012] 1. When the wind speed is large enough, the torque generated by the reversed fan blades overcomes the elastic force of the reset spring itself, driving the adjusting device to rotate as a whole. Since the transmission bevel gear is in meshing with the second bevel gear, the connecting shaft III is driven to rotate along its own axis, and the mounting shaft is driven to rotate, and the deflection angle of the fan blades changes, so that the deflection angle of the fan blades can be automatically changed when the wind speed increases, and the torque generated by the fan blades is reduced, so as to avoid the problem of excessive speed of the device causing damage to the equipment due to excessive wind speed, thereby improving the stability of the device during operation.

[0013] 2. The device involved in this application document adopts a coaxial design, and the actual wind speed borne by the reversed fan blades is the same as the actual wind speed borne by the fan blades, ensuring more precise adjustment, ensuring that the device is in the best power generation efficiency and the safest state, and improving the practicality of the device.

[0014] 3. The reset spring can drive the adjusting device, the transmission inner shaft and the driving device to reset as a whole, so that the locking bevel gear and the second bevel gear are restored to the meshing state. At the same time, the locking plate and the locking seat are restored to the engaged state. The adjusting device as a whole cannot rotate. At this time, the locking bevel gear cannot rotate, and the second bevel gear is prevented from rotating through the meshing action, thereby avoiding the deflection of the fan blades during the normal operation of the device, and further improving the reliability of the device.

[0015] 4. In the equipment involved in this application document, the gear for locking the second bevel gear and the gear for driving the second bevel gear to rotate are designed to be split, namely the transmission bevel gear and the locking bevel gear, so as to avoid excessive wear of the gears, greatly improve the service life of the transmission bevel gear and the locking bevel gear, reduce the maintenance frequency of the device, and reduce the use cost of the device.

[0016] 5. When the adjusting motor drives the adjusting toothed disc to rotate, it can drive the first bevel gear to rotate, thereby adjusting the inclination angle of the reversing fan blades, so that the torque generated by the reversing fan blades at the same wind speed can be adjusted, thereby adjusting the first bevel gear according to the specific data of the fan blades, so that the device can achieve targeted angle adjustment for fan blades of different specifications, thereby providing the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the existing technical solutions, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a right view of the structure of the present invention;

[0020] Figure 3 The structure of the present invention Figure 2 Sectional view in the A direction;

[0021] Figure 4 The structure of the present invention Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 It is a schematic diagram of the main structure of the present invention;

[0023] Figure 6 It is a right view of the main structure of the structure of the present invention;

[0024] Figure 7 The structure of the present invention Figure 6 Sectional view in the middle C direction;

[0025] Figure 8 It is a schematic diagram of the structural adjustment device of the present invention;

[0026] Fig. 9 It is a right side view of the structural adjustment device of the present invention;

[0027] Fig.10 The structure of the present invention Fig. 9 Cross-section in the middle D direction;

[0028] Fig.11 It is a schematic diagram of the structural driving device of the present invention;

[0029] Fig.12 It is a right side view of the structural driving device of the present invention;

[0030] Fig.13 The structure of the present invention Fig.12 Sectional view in the middle E direction;

[0031] Fig.14 It is a schematic diagram of the structural rotating device of the present invention;

[0032] Fig.15 The structure of the present invention Fig.14 Cross-sectional view along the F direction.

[0033] In the figure: 1. connecting steel sleeve; 2. windward front end; 3. adjusting device; 31. stroke shaft; 32. reset spring; 33. locking transmission device; 331. connecting shaft I; 332a. transmission bevel gear; 332b. locking bevel gear; 34. locking plate; 4. stroke sleeve; 5. connecting outer shaft; 6. power generation chamber; 7. transmission inner shaft; 8. driving device; 81. housing; 82. reversing device; 821. connecting shaft II; 822. reversing blades; 823. first bevel gear; 83. adjusting motor; 84. adjusting toothed disc; 85. windward disc; 9. locking seat; 10. connecting base; 11. rotating device; 111. connecting shaft III; 112. second bevel gear; 113. mounting shaft; 114. blades; 115. bearing connecting seat. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] See also Figure 1-7As shown in the figure, a wind power generation device provided by the present embodiment includes a connecting steel sleeve 1, a windward front end 2 is fixedly installed at the front end of the connecting steel sleeve 1 through bolt connection, a travel sleeve 4 for connecting an adjusting device 3 is fixedly installed on the inner wall of the windward front end 2 near the front section, a connecting outer shaft 5 is fixedly installed at the end of the connecting steel sleeve 1 through bolt connection, a power generation chamber 6 is provided on the outer surface of the connecting outer shaft 5 through a bearing connecting movable sleeve, a transmission inner shaft 7 is fixedly installed at the end of the adjusting device 3, a driving device 8 is fixedly installed at the end of the transmission inner shaft 7, a locking seat 9 is fixedly installed at the top and bottom of the inner wall of the adjusting device 3 near the connecting outer shaft 5, a connecting base 10 is provided on the outer surface of the adjusting device 3 near the middle, and a rotating device 11 is fixedly connected to the top of the connecting base 10 through bolts.

[0036] See also Figure 3 The outer surface of the power generation chamber 6 is streamlined.

[0037] For further information, see Fig.10 The locking transmission device 33 includes a connecting shaft Ⅰ331, and a transmission bevel gear 332a and a locking bevel gear 332b are respectively provided at both ends of the connecting shaft Ⅰ331.

[0038] For further information, see Figure 8-Figure 10 The adjusting device 3 includes a stroke shaft 31, which is movably mounted inside the stroke sleeve 4. A return spring 32 is fixedly mounted on one end of the stroke shaft 31. The front end of the return spring 32 is fixedly connected to the open end of the inner cavity of the stroke sleeve 4. A locking transmission device 33 is fixedly mounted on the end of the stroke shaft 31. A locking disk 34 is fixedly mounted on one end of the locking transmission device 33. One side of the locking disk 34 is fixedly connected to the transmission inner shaft 7. A protrusion is provided on the outer surface of the locking disk 34.

[0039] See also Figure 4 and Figure 8 The protrusion on the outer surface of the locking plate 34 cooperates with the locking seat 9 to lock.

[0040] For further information, see Figure 3 and Figure 11-13 The driving device 8 includes a shell 81, and a reversing device 82 is movably sleeved on the outer surface of the shell 81. An adjusting motor 83 is fixedly installed near one end of the inner cavity of the shell 81, and an adjusting gear plate 84 is fixedly installed at one end of the output shaft of the adjusting motor 83. A windward disk 85 is fixedly installed at the front end of the outer surface of the shell 81, and one end of the transmission inner shaft 7 is fixedly connected to the windward disk 85.

[0041] For further information, see Fig.13The reversing device 82 includes a connecting shaft II 821, which is movably mounted on the outer surface of the shell 81. One end of the connecting shaft II 821 is located outside the shell 81 and is fixedly mounted with a reversing blade 822. The other end of the connecting shaft II 821 is located inside the shell 81 and is fixedly mounted with a first bevel gear 823.

[0042] See also Fig.13 , the first bevel gear 823 is meshed with the adjusting toothed disc 84 .

[0043] For further information, see Figure 5 , Figure 13-Figure 15 The rotating device 11 includes a connecting shaft III 111, a second bevel gear 112 is provided at the end fixed sleeve of the connecting shaft III 111, a mounting shaft 113 is provided at the top fixed sleeve of the connecting shaft III 111, a fan blade 114 is fixedly installed at the top of the mounting shaft 113, and a bearing connection seat 115 is provided on the movable sleeve of the connecting shaft III 111, and the bearing connection seat 115 is fixedly connected to the connecting base 10 by bolt connection. In traditional equipment, other equipment is used to detect the wind speed, and then the deflection angle of the fan blade is adjusted by other control equipment and motors. This adjustment method has obvious hysteresis, and the wind direction cannot always face the wind turbine, so that the actual measured wind speed is different from the actual wind speed on the surface of the fan blade, resulting in the problem of inaccurate adjustment. The device involved in this application document adopts a coaxial design, and the actual wind speed borne by the reverse fan blade 822 is the same as the actual wind speed borne by the fan blade 114, which ensures more accurate adjustment, ensures that the device is in the best power generation efficiency and the safest state, and improves the practicality of the device.

[0044] See also Figure 3 , Figure 8 , Fig.10 and Figure 14-15 When the wind speed drops below the trigger threshold, the reset spring 32 can drive the adjusting device 3, the transmission inner shaft 7 and the driving device 8 to reset as a whole, so that the locking bevel gear 332b and the second bevel gear 112 are restored to a meshing state. At the same time, the locking plate 34 and the locking seat 9 are restored to a locked state, and the adjusting device 3 as a whole cannot rotate. At this time, the locking bevel gear 332b cannot rotate, and the second bevel gear 112 is prevented from rotating through the meshing action, thereby avoiding the deflection of the fan blades 114 during the normal operation of the device, thereby further improving the reliability of the device.

[0045] See also Figure 3 , Figure 8 and Figure 14-15 The end of the connecting shaft III 111 extends to the inside of the connecting steel sleeve 1 , and the second bevel gear 112 is located inside the connecting steel sleeve 1 and is combined with the locking transmission device 33 .

[0046] See also Figure 3 , Fig.10 , Figure 13-Figure 15 , the inclination direction of the fan blade 114 is opposite to the inclination direction of the reversing device 82.

[0047] When the wind speed increases, since the outer surface of the power generation chamber 6 is streamlined, the airflow will flow along the outer surface of the power generation chamber 6 and contact the driving device 8 as a whole, thereby pushing the driving device 8 to move to the right as a whole. Since the transmission inner shaft 7 connects the driving device 8 and the adjusting device 3, the adjusting device 3 is driven to move synchronously as a whole, so that the locking plate 34 is disengaged from the locking seat 9, and at the same time, the locking bevel gear 332b is disengaged from the first bevel gear 823 and is in a meshing state with the transmission bevel gear 332a. At this time, the inclination direction of the fan blade 114 is opposite to the inclination direction of the reversing device 82, so that the torque generated by the airflow on the reversing fan blade 822 is the same as that of the fan blade 114. The torque generated is opposite. When the wind speed is large enough, the torque generated by the reversed blade 822 overcomes the elastic force of the reset spring 32 itself, driving the adjusting device 3 to rotate as a whole. Since the transmission bevel gear 332a is in a meshing state with the second bevel gear 112, it drives the connecting shaft III111 to rotate along its own axis, drives the mounting shaft 113 to rotate, and the deflection angle of the blade 114 changes, thereby achieving automatic change of the deflection angle of the blade 114 when the wind speed increases, and reducing the torque generated by the blade 114, avoiding the problem of excessive wind speed causing the device to rotate too high and causing equipment damage, thereby improving the stability of the device during operation.

[0048] When the adjusting device 3 is in the initial position, the locking bevel gear 332b is meshed with the second bevel gear 112, and the locking seat 9 is matched with the locking plate 34. When the adjusting device 3 moves to the right, the transmission bevel gear 332a is meshed with the second bevel gear 112, and the locking seat 9 is out of engagement with the locking plate 34.

[0049] Specifically, see Figure 3 , Fig.10 , Figure 13-Figure 15When the adjusting device 3 is in the initial position, the locking bevel gear 332b is meshed with the second bevel gear 112, and the locking seat 9 is matched with the locking disk 34 at this time. When the adjusting device 3 moves to the right, the transmission bevel gear 332a is meshed with the second bevel gear 112, and the locking seat 9 is disengaged from the locking disk 34 at this time. In the traditional device, there is one gear for locking and driving the adjusting blades, and in the actual use process, the blades will always generate rotational torque under the action of wind force, and act on the gears responsible for locking and driving, resulting in a greatly reduced life of the gears. In the device involved in the present application document, the gear for locking the second bevel gear 112 and the gear for driving the second bevel gear 112 to rotate are designed in a split manner, namely the transmission bevel gear 332a and the locking bevel gear 332b, which avoids excessive wear of the gears, greatly improves the service life of the transmission bevel gear 332a and the locking bevel gear 332b, reduces the maintenance frequency of the device, and reduces the use cost of the device.

[0050] See also Figure 13-Figure 15 Since the first bevel gear 823 is meshed with the adjusting toothed disc 84, the adjusting motor 83 can drive the first bevel gear 823 to rotate during the process of driving the adjusting toothed disc 84 to rotate, thereby adjusting the inclination angle of the reversing blades 822, so that the torque generated by the reversing blades 822 at the same wind speed can be adjusted, thereby adjusting the first bevel gear 823 according to the specific data of the blades 114, so that the device can achieve targeted angle adjustment for blades 114 of different specifications, providing a scope of application of the device.

[0051] The method of use of the present invention is as follows:

[0052] Before use, the inclination angle of the reversing blades 822 is adjusted by adjusting the motor 83 according to the specific specifications of the fan blades 114, thereby adjusting the torque generated by the reversing blades 822 at a certain wind speed, ensuring that when the wind speed reaches a threshold, the drive device 8 can autonomously adjust the inclination angle of the fan blades 114.

[0053] When in use, the outer surface of the power generation chamber 6 is streamlined, and the airflow will flow along the outer surface of the power generation chamber 6 and contact the driving device 8 as a whole, thereby pushing the driving device 8 to move to the right as a whole. Since the transmission inner shaft 7 connects the driving device 8 and the adjusting device 3, the adjusting device 3 is driven to move synchronously as a whole, so that the locking plate 34 is disengaged from the locking seat 9, and the locking bevel gear 332b is disengaged from the first bevel gear 823 and is in a meshing state with the transmission bevel gear 332a. The torque generated by the airflow on the reversing blades 822 and the blades 114 are The torque generated is opposite to that generated by the reverse blade 822. When the wind speed is large enough, the torque generated by the reverse blade 822 overcomes the elastic force of the reset spring 32 itself, driving the adjusting device 3 to rotate as a whole. Since the transmission bevel gear 332a is in a meshing state with the second bevel gear 112, it drives the connecting shaft III111 to rotate along its own axis, drives the mounting shaft 113 to rotate, and realizes the change of the deflection angle of the blade 114. The device adopts a coaxial design, and the actual wind speed borne by the reverse blade 822 is the same as the actual wind speed borne by the blade 114, ensuring more precise adjustment.

[0054] When the wind speed drops below the trigger threshold, the reset spring 32 can drive the adjusting device 3, the transmission inner shaft 7 and the driving device 8 to reset as a whole, so that the locking bevel gear 332b and the second bevel gear 112 are restored to a meshing state. At the same time, the locking plate 34 and the locking socket 9 are restored to a locked state. At this time, the adjusting device 3 as a whole cannot rotate, and the locking bevel gear 332b cannot rotate at this time, and the second bevel gear 112 is prevented from rotating through the meshing action. The gear for locking the second bevel gear 112 and the gear for driving the second bevel gear 112 to rotate are designed in a split manner, namely the transmission bevel gear 332a and the locking bevel gear 332b.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind power generation device, comprising a connecting steel sleeve (1), characterized in that: One end of the connecting steel sleeve (1) is fixedly connected to a windward front end (2), a travel sleeve (4) is fixedly installed inside the windward front end (2), an adjusting device (3) is connected inside the travel sleeve (4), the other end of the connecting steel sleeve (1) is fixedly connected to a connecting outer shaft (5), a power generation chamber (6) is sleeved on the connecting outer shaft (5), one end of the adjusting device (3) is fixedly installed to a transmission inner shaft (7), one end of the transmission inner shaft (7) is installed with a driving device (8), a locking seat (9) is fixedly installed inside the adjusting device (3), a connecting base (10) is provided outside the adjusting device (3), and a rotating device (11) is fixedly connected to the connecting base (10); The driving device (8) comprises a housing (81), a reversing device (82) is sleeved on the housing (81), an adjusting motor (83) is fixedly mounted in the housing (81), an adjusting toothed disc (84) is fixedly mounted on the output shaft of the adjusting motor (83), and a windward disc (85) fixedly connected to the transmission inner shaft (7) is fixedly mounted on one side of the housing (81).

2. The wind power generation device according to claim 1, characterized in that: The reversing device (82) comprises a connecting shaft II (821), wherein the connecting shaft II (821) is movably connected to the housing (81), a reversing blade (822) is fixedly mounted on one end of the connecting shaft II (821), and a first bevel gear (823) meshing with the adjusting toothed disc (84) is fixedly mounted on the other end of the connecting shaft II (821).

3. The wind power generation device according to claim 2, characterized in that: The adjusting device (3) comprises a stroke shaft (31), the stroke shaft (31) is movably mounted in a stroke sleeve (4), a return spring (32) is provided at one end of the stroke shaft (31), one end of the return spring (32) is fixedly connected to the stroke sleeve (4), a locking transmission device (33) is fixedly mounted at one end of the stroke shaft (31), a locking disk (34) is fixedly mounted at one end of the locking transmission device (33), one side of the locking disk (34) is fixedly connected to the transmission inner shaft (7), a protrusion for matching locking is provided on the locking disk (34), and the locking transmission device (33) comprises a connecting shaft I (331), and a transmission bevel gear (332a) and a locking bevel gear (332b) are respectively provided at both ends of the connecting shaft I (331).

4. The wind power generation device according to claim 3, characterized in that: The rotating device (11) comprises a connecting shaft III (111), a second bevel gear (112) is fixedly provided at the bottom of the connecting shaft III (111), a mounting shaft (113) is fixedly provided at the top of the connecting shaft III (111), a fan blade (114) is fixedly provided at the top of the mounting shaft (113), a bearing connecting seat (115) fixedly connected to the connecting base (10) is also sleeved on the mounting shaft (113), the second bevel gear (112) is combined with the locking transmission device (33), and the inclination direction of the fan blade (114) is opposite to the inclination direction of the reversing device (82).

5. The wind power generation device according to claim 4, characterized in that: When the adjusting device (3) is in the initial position, the locking bevel gear (332b) meshes with the second bevel gear (112), and the locking card seat (9) cooperates with the locking plate (34); when the adjusting device (3) moves to the right, the transmission bevel gear (332a) meshes with the second bevel gear (112), and the locking card seat (9) and the locking plate (34) are out of engagement.

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