CN213574473U - Transmission mechanism of wind power generation device - Google Patents

Transmission mechanism of wind power generation device Download PDF

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Publication number
CN213574473U
CN213574473U CN202021147894.4U CN202021147894U CN213574473U CN 213574473 U CN213574473 U CN 213574473U CN 202021147894 U CN202021147894 U CN 202021147894U CN 213574473 U CN213574473 U CN 213574473U
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China
Prior art keywords
transmission
gear
shaft
planetary
main shaft
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Expired - Fee Related
Application number
CN202021147894.4U
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Chinese (zh)
Inventor
陈梦吉
张银君
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Hechi University
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Hechi University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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Abstract

The utility model relates to the technical field of wind power generation equipment, in particular to a transmission mechanism of a wind power generation device, which comprises a transmission box body, wherein the transmission box body is rotationally connected with a first main shaft, one side of the first main shaft is connected with a wind wheel structure, the other side of the first main shaft is provided with a speed change structure, the speed change structure is matched with a planetary transmission structure, the planetary transmission structure is matched with a flywheel structure, and the flywheel structure is connected with a generator; the utility model has the advantages that: the variable speed structure can let transmission structure guarantee even rotational speed under the wind-force of difference to guarantee stable power supply efficiency, and planetary transmission mechanism can guarantee the stability of equipment in the transmission, and the transmission efficiency of mechanical energy is higher, reduces the waste of transmission in-process energy, and the design of flywheel structure can let generator the place ahead have an equipment of energy storage, lets the generator can accept more stable power supply, plays the effect of steady voltage.

Description

Transmission mechanism of wind power generation device
Technical Field
The utility model relates to a wind power generation equipment technical field specifically is a wind power generation set's drive mechanism.
Background
When a wind generating set generates electricity, the output electric frequency is ensured to be constant, which is very necessary for wind-power grid-connected generation or wind-solar complementary generation, and the frequency of wind power is ensured to be constant, namely, a mode is to ensure the constant rotating speed of the generator, namely, a constant-speed constant-frequency operation mode; the other mode is that the rotating speed of the generator changes along with the wind speed, and the constant frequency of the output electric energy is ensured by other means, namely, the variable-speed constant-frequency operation is realized.
The difference of wind-force can lead to the rotational speed difference of flabellum to lead to the efficiency of electricity generation unstable, and traditional power generation facility can not adjust the rotational speed of self, perhaps transmission structure is unstable, leads to the generating effect not too good, and power supply power is unstable.
Therefore, a transmission mechanism of a wind power generation device, which can adjust the rotating speed and has a stable structure, is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can adjust the rotational speed, and stable in structure's wind power generation set's drive mechanism to solve traditional power generation facility and can not adjust the rotational speed of self, perhaps transmission structure is unstable, leads to the generating effect not too good, the unstable problem of power supply.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a wind power generation set's drive mechanism, includes transmission box, the last rotation of transmission box is connected with first main shaft, first main shaft is located transmission box external connection and has the wind wheel structure, first main shaft is located the inside variable speed structure that is provided with of transmission box, the structural cooperation of variable speed has the planet transmission structure, the structural cooperation of planet transmission has the flywheel structure, the structural generator that is connected with of flywheel.
As a further aspect of the present invention: the speed change structure comprises a second driving device, the second driving device is arranged inside the transmission box body, the second driving device is rotatably connected to a supporting block through a second driving shaft, the supporting block is fixed inside the transmission box body, a connecting plate is further arranged in the middle of the second driving shaft in a threaded fit mode, the connecting plate is rotatably connected with the first main shaft, a first sun gear, a second sun gear and a third sun gear which are different in diameter are further arranged on the first main shaft, and the first sun gear, the second sun gear and the third sun gear are respectively meshed with the planetary transmission structure.
As a further aspect of the present invention: the planetary transmission structure comprises a rotary disc, the rotary disc is rotationally connected with a supporting frame, the supporting frame is fixed in a transmission box body, four planetary shafts are fixed on one side of the rotary disc, a first planetary gear, a second planetary gear and a third planetary gear are arranged on the planetary shafts, a first gear ring, a second gear ring and a third gear ring are respectively meshed at the peripheries of the first planetary gear, the second planetary gear and the third planetary gear, the first gear ring, the second gear ring and the third gear ring are arranged in the transmission box body, and the interiors of the first planetary gear, the second planetary gear and the third planetary gear are respectively meshed with a first sun gear, a second sun gear and a third sun gear; the other side of the turntable is provided with a second main shaft, a first driving gear is arranged on the second main shaft, and a flywheel structure is meshed with the first driving gear.
As a further aspect of the present invention: the flywheel structure includes the flywheel, the inside back shaft that is provided with of flywheel, the flywheel both sides are provided with a support frame respectively, the back shaft rotates to be connected on two support frames, back shaft one end is provided with first driven gear, first driven gear and first driving gear meshing, the back shaft other end is provided with the second driving gear, the meshing has second driven gear on the second driving gear, be provided with the pivot in the second driven gear, the pivot is connected on the generator, the generator setting is inside the transmission box.
As a further aspect of the present invention: the diameters of the first sun gear and the third sun gear are smaller than that of the second sun gear.
As a further aspect of the present invention: the wind wheel structure comprises a center block, the center block is connected to a first main shaft, a groove is formed in the center block, a first driving device is arranged in the groove, the first driving device is connected with a reduction gearbox through a first driving shaft, the other side of the reduction gearbox is connected with a fan blade shaft, the fan blade shaft is rotatably connected with the center block, and fan blades are further connected to the fan blade shaft.
Compared with the prior art, the beneficial effects of the utility model are that: the angle of flabellum can be adjusted to the wind wheel mechanism, can be according to the different angle regulation of wind direction, can be the best maximum wind-force of acceptance, variable speed structure can let transmission structure guarantee even rotational speed under the wind-force of difference, in order to guarantee stable power supply efficiency, and planetary transmission mechanism can guarantee the stability of equipment in the driven, the transmission efficiency of mechanical energy is higher, reduce the waste of transmission in-process energy, the design of flywheel structure, can let generator the place ahead have an energy storage's equipment, let the generator can accept more stable power supply, play the effect of steady voltage.
Drawings
Fig. 1 is a schematic structural diagram of a transmission mechanism of a wind power generation device.
Fig. 2 is a schematic structural diagram of the planetary shaft, the turntable and the second main shaft in cooperation.
Fig. 3 is a schematic structural view of a wind wheel structure.
In the figure: 1. a wind wheel structure; 101. a fan blade; 102. a center block; 103. a fan blade shaft; 104. a reduction gearbox; 105. a first drive shaft; 106. a first driving device; 107. a groove; 2. a transmission case body; 3. a first main shaft; 4. a connecting plate; 5. A second driving device; 6. a second driving shaft; 7. a support block; 8. a first sun gear; 9. a second sun gear; 10. a third sun gear; 11. a first planet gear; 12. a first ring gear; 13. a second planet wheel; 14. a second ring gear; 15. a third ring gear; 16. a third planet gear; 17. a support frame; 18. a turntable; 19. a second main shaft; 20. a first drive gear; 21. A first driven gear; 22. a planet shaft; 23. a flywheel; 24. a support frame; 25. a support shaft; 26. a second driving gear; 27. a second driven gear; 28. a rotating shaft; 29. an electric generator.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
Example 1:
as shown in fig. 1 and 2, in an embodiment of the present invention, a transmission mechanism of a wind power generation device includes a transmission case 2, the transmission case 2 is connected with a first main shaft 3 in a rotating manner, the first main shaft 3 is located the transmission case 2 and is connected with a wind wheel structure 1, the first main shaft 3 is located the transmission case 2 and is provided with a speed change structure, the speed change structure is matched with a planetary transmission structure, the planetary transmission structure is matched with a flywheel structure, and the flywheel is connected with a generator 29 in a structural manner.
The utility model discloses an embodiment, the angle of flabellum can be adjusted to the wind wheel mechanism, can be according to the different angle regulation of wind direction, can the best maximum wind-force of accepting, variable speed structure can let transmission structure guarantee even rotational speed under the wind-force of difference, in order to guarantee stable power supply efficiency, and planet drive mechanism can guarantee the stability of equipment in the driven, the transmission efficiency of mechanical energy is higher, reduce the waste of energy among the transmission process, the design of flywheel structure, can let generator the place ahead have an energy storage's equipment, let the generator can accept more stable power supply, play the effect of steady voltage.
In an embodiment of the present invention, the speed changing structure includes a second driving device 5, the second driving device 5 is disposed inside the transmission case 2, the second driving device 5 is rotatably connected to a supporting block 7 through a second driving shaft 6, the supporting block 7 is fixed inside the transmission case 2, a connecting plate 4 is further disposed in the middle of the second driving shaft 6 through a threaded fit, the connecting plate 4 is rotatably connected to the first main shaft 3, the first main shaft 3 is further provided with a first sun gear 8, a second sun gear 9 and a third sun gear 10, which have different diameters, and the first sun gear 8, the second sun gear 9 and the third sun gear 10 are respectively engaged with the planetary transmission structure; second drive arrangement 5 drives second driving shaft 6 and rotates, and second driving shaft 6 and 4 screw-thread fit of connecting plate, connecting plate 4 rotate with first main shaft 3 and are connected, and connecting plate 4 drives and moves about first main shaft 3, can change the diameter with the sun gear of planetary transmission structure engaged with to change the drive ratio, guarantee that the rotational speed that planetary transmission structure transmitted away can remain stable, provide a stable power supply.
In an embodiment of the present invention, the planetary transmission structure includes a rotary plate 18, the rotary plate 18 is rotatably connected with a supporting frame 17, the supporting frame 17 is fixed inside the transmission case 2, four planetary shafts 22 are fixed on one side of the rotary plate 18, a first planetary gear 11, a second planetary gear 13 and a third planetary gear 16 are arranged on the planetary shafts 22, a first gear ring 12, a second gear ring 14 and a third gear ring 15 are respectively engaged on the peripheries of the first planetary gear 11, the second planetary gear 13 and the third planetary gear 16, the first gear ring 12, the second gear ring 14 and the third gear ring 15 are arranged inside the transmission case 2, and the insides of the first planetary gear 11, the second planetary gear 13 and the third planetary gear 16 are respectively engaged with a first sun gear 8, a second sun gear 9 and a third sun gear 10; a second main shaft 19 is arranged on the other side of the turntable 18, a first driving gear 20 is arranged on the second main shaft 19, and a flywheel structure is meshed with the first driving gear 20; the planetary gear of every kind of model has four, plays the effect that supports on four sides, can guarantee sun gear stability when pivoted, directly adopts gear engagement to carry out the transmission simultaneously and can the at utmost improve transmission efficiency, avoids the waste of energy, and planetary gear passes through planet axle 22 and drives carousel 18 and rotate, transmits kinetic energy to second main shaft 19 again on, planet axle 22 also can be for five or other quantity, confirms according to gear diameter and actual conditions, can stabilize and improve driven efficiency.
In an embodiment of the present invention, the flywheel structure includes a flywheel 23, a supporting shaft 25 is disposed inside the flywheel 23, two supporting frames 24 are disposed on two sides of the flywheel 23, the supporting shaft 25 is rotatably connected to the two supporting frames 24, a first driven gear 21 is disposed at one end of the supporting shaft 25, the first driven gear 21 is engaged with the first driving gear 20, a second driving gear 26 is disposed at the other end of the supporting shaft 25, a second driven gear 27 is engaged with the second driving gear 26, a rotating shaft 28 is disposed in the second driven gear 27, the rotating shaft 28 is connected to a generator 29, and the generator 29 is disposed inside the transmission case 2; the second main shaft 19 drives the support shaft 25 to rotate through gear engagement, so as to drive the flywheel 23 to rotate, the flywheel 23 has an energy storage effect, the rotation speed of the flywheel is more stable, a stable rotation speed can be provided for the generator 29, and the generator 29 can stably provide electric power.
In one embodiment of the present invention, the first sun gear 8 and the third sun gear 10 are both smaller in diameter than the second sun gear 9; since the first sun gear 8 and the third sun gear 10 need to move inside the second planetary gear 13 during movement, if the first sun gear 8 and the third sun gear 10 are larger than the second sun gear 9, interference with the second planetary gear 13 can be caused, and the gear ratio cannot be normally adjusted.
Example 2:
as shown in fig. 2, in another embodiment of the present invention, the wind wheel structure 1 includes a central block 102, the central block 102 is connected to the first main shaft 3, a groove 107 is disposed inside the central block 102, a first driving device 106 is disposed inside the groove 107, the first driving device 106 is connected to a reduction box 104 through a first driving shaft 105, the other side of the reduction box 104 is connected to a fan blade shaft 103, the fan blade shaft 103 is rotatably connected to the central block 102, and the fan blade shaft 103 is further connected to a fan blade 101; first drive arrangement 106 drives first driving shaft 105 and rotates, and first driving shaft 105 passes through reducing gear box 104 and drives fan blade shaft 103 and rotate, changes the angle of flabellum 101 through fan blade shaft 103, reducing gear box 104 adopts the harmonic reduction gear, and the harmonic reduction gear can have very big speed reduction drive ratio, can let fan blade shaft 103 rotate more slowly, and the regulation of angle is more accurate, and it is better to bear wind ability, also can use other reduction gears, and the transmission is bigger, can let fan blade shaft 103 slowly pivoted can.
The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims (6)

1. The utility model provides a wind power generation set's drive mechanism, includes transmission box (2), its characterized in that, it is connected with first main shaft (3) to rotate on transmission box (2), first main shaft (3) are located transmission box (2) external connection and have wind wheel structure (1), first main shaft (3) are located transmission box (2) inside and are provided with the speed change structure, the structural cooperation of speed change has the planet transmission structure, the structural cooperation of planet transmission has the flywheel structure, the flywheel is structural to be connected with generator (29).
2. Transmission of a wind power plant according to claim 1, characterized in that the speed change structure comprises a second drive means (5), the second driving device (5) is arranged in the transmission case body (2), the second driving device (5) is rotationally connected to the supporting block (7) through a second driving shaft (6), the supporting block (7) is fixed in the transmission box body (2), the middle part of the second driving shaft (6) is also matched with a connecting plate (4) through threads, the connecting plate (4) is rotationally connected with the first main shaft (3), the first main shaft (3) is also provided with a first sun gear (8), a second sun gear (9) and a third sun gear (10) which have different diameters, the first sun gear (8), the second sun gear (9) and the third sun gear (10) are respectively meshed with the planetary transmission structure.
3. The transmission mechanism of the wind power generation device according to claim 2, wherein the planetary transmission structure comprises a rotary disk (18), the rotary disk (18) is rotatably connected with a supporting frame (17), the supporting frame (17) is fixed inside the transmission case (2), four planetary shafts (22) are fixed on one side of the rotary disk (18), a first planetary wheel (11), a second planetary wheel (13) and a third planetary wheel (16) are arranged on the planetary shafts (22), the peripheries of the first planetary wheel (11), the second planetary wheel (13) and the third planetary wheel (16) are respectively meshed with a first gear ring (12), a second gear ring (14) and a third gear ring (15), the first gear ring (12), the second gear ring (14) and the third gear ring (15) are arranged inside the transmission case (2), and the interiors of the first planetary wheel (11), the second planetary wheel (13) and the third planetary wheel (16) are respectively connected with a first sun wheel (8), The second sun gear (9) is meshed with the third sun gear (10); a second main shaft (19) is arranged on the other side of the rotary table (18), a first driving gear (20) is arranged on the second main shaft (19), and a flywheel structure is meshed with the first driving gear (20).
4. Transmission of a wind power plant according to claim 3, characterized in that the flywheel arrangement comprises a flywheel (23), a support shaft (25) is arranged in the flywheel (23), two support frames (24) are respectively arranged on two sides of the flywheel (23), the supporting shaft (25) is rotationally connected to the two supporting frames (24), one end of the supporting shaft (25) is provided with a first driven gear (21), the first driven gear (21) is meshed with the first driving gear (20), the other end of the supporting shaft (25) is provided with a second driving gear (26), a second driven gear (27) is meshed on the second driving gear (26), a rotating shaft (28) is arranged in the second driven gear (27), the rotating shaft (28) is connected to a generator (29), and the generator (29) is arranged in the transmission box body (2).
5. Transmission of a wind power plant according to claim 2, characterized in that the first sun wheel (8) and the third sun wheel (10) each have a smaller diameter than the second sun wheel (9).
6. The transmission mechanism of the wind power generation device according to claim 1, wherein the wind wheel structure (1) comprises a center block (102), the center block (102) is connected to the first main shaft (3), a groove (107) is arranged inside the center block (102), a first driving device (106) is arranged inside the groove (107), the first driving device (106) is connected with a reduction gearbox (104) through a first driving shaft (105), the other side of the reduction gearbox (104) is connected with a fan blade shaft (103), the fan blade shaft (103) is rotatably connected with the center block (102), and fan blades (101) are further connected to the fan blade shaft (103).
CN202021147894.4U 2020-06-19 2020-06-19 Transmission mechanism of wind power generation device Expired - Fee Related CN213574473U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021147894.4U CN213574473U (en) 2020-06-19 2020-06-19 Transmission mechanism of wind power generation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021147894.4U CN213574473U (en) 2020-06-19 2020-06-19 Transmission mechanism of wind power generation device

Publications (1)

Publication Number Publication Date
CN213574473U true CN213574473U (en) 2021-06-29

Family

ID=76522165

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021147894.4U Expired - Fee Related CN213574473U (en) 2020-06-19 2020-06-19 Transmission mechanism of wind power generation device

Country Status (1)

Country Link
CN (1) CN213574473U (en)

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Granted publication date: 20210629