CN220505237U - Variable pitch device of wind generating set - Google Patents
Variable pitch device of wind generating set Download PDFInfo
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- CN220505237U CN220505237U CN202321864096.7U CN202321864096U CN220505237U CN 220505237 U CN220505237 U CN 220505237U CN 202321864096 U CN202321864096 U CN 202321864096U CN 220505237 U CN220505237 U CN 220505237U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000008093 supporting effect Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000010248 power generation Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model relates to the field of pitch control, in particular to a pitch control device of a wind generating set, which comprises a support bracket, a rotating connecting piece, a rotating shaft, a side connecting piece, a transmission gear, a rotating shaft sleeve, a connecting bracket, a connecting telescopic rod, a rotating transmission piece, a side rotating rod and paddles, wherein the support bracket is connected with the rotating connecting piece; the top of the support bracket is rotationally connected with the rotary connecting piece; one end of the rotating shaft, which is far away from the rotating connecting piece, is rotationally connected with the rotating shaft sleeve; the side surface of the rotating shaft sleeve is connected with a plurality of groups of connecting brackets; one end of the plurality of groups of connecting brackets, which is far away from the rotating shaft sleeve, is rotationally connected with the connecting telescopic rod; the output end at the bottom of the connecting telescopic rod is rotationally connected with the top of the rotary transmission part; according to the utility model, the rotation stability of the rotating shaft can be effectively improved through the device, the rotation stability of the device can be effectively improved through the combination of the supporting bracket and the rotating connecting piece, and the axisymmetric structure can ensure that the device can not eccentrically rotate in the rotating process, so that the service life of the device is prolonged.
Description
Technical Field
The utility model relates to the technical field of pitch control, in particular to a pitch control device of a wind generating set.
Background
The wind driven generator is an electric power device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate and finally outputs alternating current, the wind driven generator generally comprises a wind wheel, a generator (comprising a device), a direction regulator (tail wing), a tower, a speed limiting safety mechanism, an energy storage device and other components, the working principle of the wind driven generator is simple, the wind wheel rotates under the action of wind force, the kinetic energy of wind is converted into mechanical energy of a wind wheel shaft, and the generator rotates to generate electricity under the driving of the wind wheel shaft, so that the wind energy is also solar energy in a broad sense, and the wind driven generator is also called as a wind driven generator, and uses the solar energy as a heat source and uses the heat energy of the air as a working medium.
The Chinese patent with the publication number of CN113503226A discloses a pitch device of a wind generating set and the wind generating set, which comprises a support column, wherein a permanent magnet is arranged at the top of the support column, a rotating structure is arranged at the rear part of the permanent magnet, a rotating shaft is arranged in the rotating structure, a connecting rod is arranged at the top of the rotating structure, a rotating block is arranged on the connecting rod, a generating fan blade is arranged on the rotating block, a connecting rod fixing clamping block is arranged on the rotating block, a hydraulic rod is arranged on the hydraulic cylinder, and the hydraulic rod is hinged on the clamping block; the rotating block is used for controlling the power generation fan blade to change the pitch, the angle is adjusted, the clamping block is jacked by the hydraulic cylinder and the hydraulic rod, the connecting rod is pushed by the clamping block, the connecting rod drives the rotating block to realize the pitch change, and the power of the hydraulic cylinder is reduced and the energy is saved by the clamping of the bearing inner body and the clamping block; through the rotating structure and the permanent magnet blocks, the rotation of the power generation fan blades is guaranteed, the power generation fan blades are arranged in the connecting rod in the rotating structure, the safety of the wind driven generator is guaranteed, and the power generation fan blades are stably arranged.
However, the above disclosed solution has the following disadvantages: the scheme has the advantages that the adjusting range is not large in the actual use process, and eccentric rotation is easy to generate in the rotation process of the device, so that the rotation stability is reduced.
Disclosure of Invention
The utility model aims at solving the technical problems in the background art and provides a wind generating set pitch device.
The utility model provides a variable pitch device of a wind generating set, which comprises a support bracket, a rotating connecting piece, a rotating shaft, a side connecting piece, a transmission gear, a rotating shaft sleeve, a connecting bracket, a connecting telescopic rod, a rotating transmission piece, a side rotating rod and a blade, wherein the rotating shaft sleeve is arranged on the support bracket;
the top of the support bracket is rotationally connected with the rotary connecting piece; the side surface of the rotating connecting piece is connected with the rotating shaft; one end of the rotating shaft, which is far away from the rotating connecting piece, is rotationally connected with the rotating shaft sleeve; the side surface of the rotating shaft sleeve is connected with a plurality of groups of connecting brackets; one end of the plurality of groups of connecting brackets, which is far away from the rotating shaft sleeve, is rotationally connected with the connecting telescopic rod; the output end at the bottom of the connecting telescopic rod is rotationally connected with the top of the rotary transmission part; the rotary transmission piece is connected with the side face of the side face rotary rod; the side surface of the side surface rotating rod is rotationally connected with the side surface connecting piece; one end of the side rotating rod, which is far away from the side connecting piece, is connected with the blade; the side connecting piece is connected with the outer end face of the rotating shaft.
Preferably, a plurality of groups of fixing threaded holes are formed in the bottom of the support bracket, the plurality of groups of fixing threaded holes are distributed around the bottom of the support bracket, a U-shaped bracket is arranged on the top of the support bracket, and two sides of the inner wall of the U-shaped bracket are rotationally connected with the lateral surface of the outer end face of the rotary connecting piece.
Preferably, a plurality of groups of side rotating rods are circumferentially distributed at equal intervals around the outer end face of the side connecting piece; the rotating shaft sleeve is driven to rotate by connecting the telescopic rod with the rotating shaft.
Preferably, the paddles are rudder-shaped, multiple groups of paddles face the same direction, and multiple groups of connecting telescopic rods synchronously run.
Preferably, a plurality of groups of rotating grooves are formed in the side face of the outer end face of the side face connecting piece, the plurality of groups of rotating grooves are distributed at equal intervals in a circumferential mode, and the rotating grooves are connected with the side face rotating rod in a rotating mode.
Preferably, a blocking piece is arranged on the side face of the rotary transmission piece, a buffer layer is arranged on the side face of the top of the blocking piece, and the buffer layer is in contact with the bottom output end of the connecting telescopic rod.
Preferably, the bottom of the connecting bracket is provided with a universal shaft, and one end of the universal shaft, which is far away from the connecting bracket, is rotationally connected with the top of the connecting telescopic rod.
Preferably, the outer end face of the blade is provided with a wear-resistant layer.
The technical scheme of the utility model has the following beneficial technical effects:
according to the device, the rotation stability of the rotating shaft can be effectively improved through the device, the rotation stability of the device can be effectively improved through the combination of the supporting bracket and the rotating connecting piece, the axisymmetric structure can ensure that the device can not eccentrically rotate in the rotating process, so that the service life of the device is prolonged, the variable pitch effect of the device can be effectively improved through the structure of the connecting telescopic rod, and meanwhile, the rotation and inclination adjusting effect of the blade can be carried out to a certain extent through the structure of the rotating transmission piece, so that the use stability of the device is ensured.
Drawings
FIG. 1 is a front view of an embodiment of a wind turbine pitch device of the present utility model;
FIG. 2 is a schematic structural view of a blade in a pitch device of a wind turbine generator system according to the present utility model;
FIG. 3 is a side view of a wind turbine generator system pitch device according to the present utility model;
reference numerals: 1. a support bracket; 2. rotating the connecting piece; 3. a rotating shaft; 4. a side connector; 5. a transmission gear; 6. rotating the shaft sleeve; 7. a connecting bracket; 8. connecting a telescopic rod; 9. rotating the transmission member; 10. a side rotating lever; 11. a blade.
Detailed Description
Example 1
As shown in fig. 1-3, the pitch device of the wind generating set provided by the utility model comprises a support bracket 1, a rotating connecting piece 2, a rotating shaft 3, a side connecting piece 4, a transmission gear 5, a rotating shaft sleeve 6, a connecting bracket 7, a connecting telescopic rod 8, a rotating transmission piece 9, a side rotating rod 10 and a blade 11;
the top of the support bracket 1 is rotationally connected with the rotary connecting piece 2; the side surface of the rotary connecting piece 2 is connected with the rotary shaft 3; one end of the rotating shaft 3 far away from the rotating connecting piece 2 is rotationally connected with the rotating shaft sleeve 6; the side surface of the rotating shaft sleeve 6 is connected with a plurality of groups of connecting brackets 7; one end of the plurality of groups of connecting brackets 7, which is far away from the rotating shaft sleeve 6, is rotationally connected with the connecting telescopic rod 8; the output end at the bottom of the connecting telescopic rod 8 is rotationally connected with the top of the rotary transmission part 9; the rotary transmission piece 9 is connected with the side surface of the side surface rotary rod 10; the side surface of the side surface rotating rod 10 is rotationally connected with the side surface connecting piece 4; one end of the side rotating rod 10, which is far away from the side connecting piece 4, is connected with a blade 11; the side connecting piece 4 is connected with the outer end face of the rotating shaft 3;
further, a plurality of groups of fixing threaded holes are formed in the bottom of the support bracket 1, the plurality of groups of fixing threaded holes are distributed around the bottom of the support bracket 1, a U-shaped bracket is arranged on the top of the support bracket 1, and two sides of the inner wall of the U-shaped bracket are rotationally connected with the lateral surface of the outer end face of the rotary connecting piece 2; the device can be conveniently assembled, installed and fixed through the structure of the support bracket 1, and the stability in the rotating process of the device can be better ensured through the supporting effect of the U-shaped bracket structure of the device on the side surface of the structure of the rotating connecting piece 2;
further, a plurality of groups of side rotating rods 10 are circumferentially distributed at equal intervals around the outer end face of the side connecting piece 4; the rotating shaft sleeve 6 is driven to rotate by connecting the telescopic rod 8 with the rotating shaft 3; the structure through drive gear 5 can be convenient for this device and connect the transmission to reduced the butt joint degree of difficulty of this device, can carry out the pertinence through the structure of side dwang 10 and adjust in different service environment, thereby the inclination of paddle 11 is fit for current wind-force environment, has realized wind power generation's maximize.
In this embodiment, stability and regulation effect accuracy in the wind power generation process can be effectively improved through the device, thereby compared with the traditional device, the variable pitch rotation range of the device is larger, the device can adapt to the wind power degree of a larger range, simultaneously, the structures of a plurality of groups of synchronous connecting telescopic links 8 can ensure that the rotation inclination angles of all rotating paddles 11 are the same, thereby realizing the effect of adaptability compatibility of the device, when the device is in a working state, the device can be conveniently subjected to power transmission through the structure of a transmission gear 5, the effects of small docking difficulty and the like of the device are realized, the rotating shaft sleeve 6 can rotate along with the rotating shaft 3, and the internal structure of the device can be prevented from being blocked by slightly rotating relative to the rotating shaft 3 when the connecting telescopic links 8 drive the rotating transmission member 9 to rotate; through the equidistant distributed structure of this device circumference, can make the atress stable when this device rotates the use.
Example two
As shown in fig. 2-3, in the wind generating set pitch device provided by the utility model, compared with the first embodiment, the blades 11 are rudder-shaped, the multiple groups of blades 11 are consistent in orientation, the multiple groups of connecting telescopic rods 8 run synchronously, and the effect of adjusting the inclination angle of the blades 11 of the device can be effectively realized through the structure of the connecting telescopic rods 8, so that the service stability of the device in different wind power environments can be effectively improved, and meanwhile, the inclination angle of each blade 11 is ensured to be the same, so that the stress of the rotating shaft 3 in all directions is uniform, and the service life of the device is prolonged.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (8)
1. The pitch device of the wind generating set is characterized by comprising a supporting bracket (1), a rotating connecting piece (2), a rotating shaft (3), a side connecting piece (4), a transmission gear (5), a rotating shaft sleeve (6), a connecting bracket (7), a connecting telescopic rod (8), a rotating transmission piece (9), a side rotating rod (10) and a blade (11);
the top of the support bracket (1) is rotationally connected with the rotary connecting piece (2); the side surface of the rotary connecting piece (2) is connected with the rotary shaft (3); one end of the rotating shaft (3) far away from the rotating connecting piece (2) is rotationally connected with the rotating shaft sleeve (6); the side surface of the rotating shaft sleeve (6) is connected with a plurality of groups of connecting brackets (7); one end of the plurality of groups of connecting brackets (7) far away from the rotating shaft sleeve (6) is rotationally connected with the connecting telescopic rod (8); the bottom output end of the connecting telescopic rod (8) is rotationally connected with the top of the rotary transmission part (9); the rotary transmission piece (9) is connected with the side surface of the side surface rotary rod (10); the side surface of the side surface rotating rod (10) is rotationally connected with the side surface connecting piece (4); one end of the side rotating rod (10) far away from the side connecting piece (4) is connected with the blade (11); the side connecting piece (4) is connected with the outer end face of the rotating shaft (3).
2. The pitch device of the wind generating set according to claim 1, wherein a plurality of groups of fixing threaded holes are formed in the bottom of the supporting bracket (1), the plurality of groups of fixing threaded holes are distributed around the bottom of the supporting bracket (1), a U-shaped bracket is arranged on the top of the supporting bracket (1), and two sides of the inner wall of the U-shaped bracket are rotationally connected with the lateral surface of the outer end face of the rotating connecting piece (2).
3. The pitch device of the wind generating set according to claim 1, wherein a plurality of groups of side rotating rods (10) are circumferentially distributed at equal intervals around the outer end face of the side connecting piece (4); the rotating shaft sleeve (6) is connected with the telescopic rod (8) and the rotating shaft (3) to rotate in a driven manner.
4. The wind generating set pitch device according to claim 1, wherein the blades (11) are rudder-shaped, a plurality of groups of blades (11) face in a same direction, and a plurality of groups of connecting telescopic rods (8) run synchronously.
5. The pitch device of the wind generating set according to claim 1, wherein a plurality of groups of rotating grooves are formed in the outer end face side face of the side face connecting piece (4), the plurality of groups of rotating grooves are distributed at equal intervals in a circumferential mode, and the rotating grooves are connected with the side face rotating rod (10) in a rotating mode.
6. A wind turbine pitch device according to claim 1, characterized in that the side of the rotation transmission member (9) is provided with a blocking member, the top side of the blocking member is provided with a buffer layer, and the buffer layer is in contact with the bottom output end of the connecting telescopic rod (8).
7. The pitch device of a wind generating set according to claim 1, wherein a universal shaft is arranged at the bottom of the connecting bracket (7), and one end of the universal shaft away from the connecting bracket (7) is rotatably connected with the top of the connecting telescopic rod (8).
8. A wind turbine generator system pitch device according to claim 1, wherein the outer end surface of the blade (11) is provided with a wear-resistant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321864096.7U CN220505237U (en) | 2023-07-14 | 2023-07-14 | Variable pitch device of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321864096.7U CN220505237U (en) | 2023-07-14 | 2023-07-14 | Variable pitch device of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505237U true CN220505237U (en) | 2024-02-20 |
Family
ID=89867204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321864096.7U Active CN220505237U (en) | 2023-07-14 | 2023-07-14 | Variable pitch device of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505237U (en) |
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2023
- 2023-07-14 CN CN202321864096.7U patent/CN220505237U/en active Active
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