CN219888194U - Unloading device of horizontal-axis wind driven generator - Google Patents
Unloading device of horizontal-axis wind driven generator Download PDFInfo
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- CN219888194U CN219888194U CN202321033395.6U CN202321033395U CN219888194U CN 219888194 U CN219888194 U CN 219888194U CN 202321033395 U CN202321033395 U CN 202321033395U CN 219888194 U CN219888194 U CN 219888194U
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Abstract
The utility model belongs to wind power generation protection component technical field discloses a horizontal axis aerogenerator's unloading device, include: the rotary support shaft is fixedly connected with an unloading wheel; the mounting plate is rotatably connected to the rotary support shaft; the pressing plate is rotationally connected to the rotating support shaft and positioned between the mounting plate and the unloading wheel, and a friction plate is fixedly connected to one side of the pressing plate positioned on the unloading wheel; the pressure spring is sleeved on the rotary support shaft and is positioned between the mounting plate and the pressing plate; the bolts sequentially penetrate through the pressing plate and the mounting plate to be in threaded connection with the nuts. The unloading capacity of the unloading device is adjusted by changing the friction force between the friction plate and the unloading wheel.
Description
Technical Field
The disclosure belongs to the technical field of wind power generation protection components, and particularly relates to an unloading device of a horizontal-axis wind power generator.
Background
With the continuous development of the current technology, the wind energy resources of China are rich, the wind energy reserves which can be developed and utilized are about 10 hundred million kW, wherein, the wind energy reserves on land are about 2.53 hundred million kW (calculated by the height data of the land and 10m away from the ground), and the wind energy reserves which can be developed and utilized on the sea are about 7.5 hundred million kW, and the total wind energy reserves are 10 hundred million kW. And the national electric installation was about 5.67 million kW at the end of 2003. Wind is one of the nuisanceless energy sources. And it is inexhaustible. The wind power generation device is very suitable for coastal islands, grassland pasture areas, mountain areas and plateau areas which are lack of water, fuel and inconvenient in transportation, and can be widely used according to local conditions. Offshore wind power is an important field of renewable energy development, is an important force for promoting the progress of wind power technology and the industrial upgrading, and is an important measure for promoting the adjustment of energy structure. The offshore wind energy resource of China is rich, the construction of the offshore wind power project is quickened, and the method has important significance for promoting the treatment of atmospheric haze in coastal areas, adjusting the energy structure and transforming the economic development mode.
The existing wind driven generator with smaller size is generally relieved through an unloading device arranged between the generator and a load when encountering heavy wind weather or overspeed operation in the working process, most of unloading devices are in an electrical structure at present, the generator is required to bear power exceeding rated power, the damage of the generator is easy to cause, and the economic benefit is poor.
In order to solve the problems, as disclosed in patent publication No. CN217401055U, a wind driven generator unloading device comprises a wind driven generator main shaft, a flywheel is arranged in front of the wind driven generator main shaft, three driving wheels with sequentially reduced front to back radiuses are fixed on an inner shaft body of the wind driven generator main shaft, each driving wheel is connected with an unloading wheel through a driving belt in an outward transmission manner, the inner side of the unloading wheel is rotationally connected with a support rod through a rotating bearing, the rear of the support rod is connected to a mounting plate, the center position of the mounting plate is fixed on the wind driven generator main shaft through the rotating bearing, two arc friction plates which are linearly and symmetrically distributed by taking the center of the unloading wheel as the center of a circle are wrapped on the periphery of the unloading wheel, arc friction plates are all provided with arc pressing plates, two ends of each arc pressing plate are connected together through tension springs, the middle position of the inner side of each arc pressing plate is connected onto a fixing plate through a connecting rod in a backward manner, and the center position of the fixing plate passes through the support rod.
According to the scheme, the three driving wheel structures are arranged, the unloading wheels, the arc friction plates and the arc pressing plate structures are matched, the rotating driving wheels can be retarded and unloaded, the rotating speed of the wind driven generator is reduced, the load is reduced, the generator set is protected, and the service life of the wind driven generator is prolonged. However, there is a problem that the friction force between the unloading wheel and the arc friction plate is fixed and cannot be adjusted, the wind power on the sea is different from the wind power on the land, the wind power in the north is different from the wind power in the south, and thus the unloading requirements of the unloading devices of the wind driven generators in different places are different, and therefore, the unloading device of the horizontal axis wind driven generator capable of adjusting the unloading capability is needed.
Disclosure of Invention
Aiming at the defects of the prior art, the aim of the present disclosure is to provide an unloading device of a horizontal-axis wind driven generator, which can change the friction force inside the unloading device and further change the unloading capacity.
The purpose of the disclosure can be achieved by the following technical scheme:
an unloading device of a horizontal axis wind turbine, comprising:
the rotary support shaft is fixedly connected with an unloading wheel;
the mounting plate is rotatably connected to the rotary support shaft;
the pressing plate is rotationally connected to the rotating support shaft and positioned between the mounting plate and the unloading wheel, and a friction plate is fixedly connected to one side of the pressing plate positioned on the unloading wheel;
the pressure spring is sleeved on the rotary support shaft and is positioned between the mounting plate and the pressing plate;
the bolts sequentially penetrate through the pressing plate and the mounting plate to be in threaded connection with the nuts.
The technical scheme has the principle and technical effects that:
when the device is used, the unloading device of the wind driven generator can be adjusted according to the local wind force condition, during adjustment, the nut is rotated by a tool such as a spanner to adjust the distance between the mounting plate and the pressing plate, when the distance is reduced, the pressure spring is stressed and contracted, the reverse acting force of the pressure spring on the pressing plate is increased, the positive pressure of the friction plate on the unloading wheel is further increased, and the friction force between the friction plate and the unloading wheel is further increased, so that the unloading capacity of the unloading device is adjusted.
Further, at least two bolts are arranged between the pressing plate and the mounting plate.
Further, the rotating fulcrum is rotatably connected to the shield plate.
Further, the bolts are fixedly connected with the protection plates.
Further, the middle of the protection plate is rotatably connected with a fan main shaft.
Further, a first gear is fixedly connected to the fan main shaft, a second gear is fixedly connected to the rotating support shaft, and a chain is connected between the first gear and the second gear in a meshed mode.
Further, the fan main shaft is in rotary connection with the protection plate through a first rotary bearing.
Further, the rotary support shaft is in rotary connection with the protection plate through a second rotary bearing.
The noun, conjunctive or adjective parts related to the above technical solution are explained as follows:
by fixed connection is meant a connection without any relative movement after the parts or components are fixed. The device is divided into a detachable connection type and a non-detachable type.
(1) The detachable connection is to fix the parts together by using screws, splines, wedge pins and the like. The connection mode can be disassembled during maintenance, and parts cannot be damaged. The connector used must be of the correct size (e.g. length of bolt, key) and tightened properly.
(2) The non-detachable connection mainly refers to welding, riveting, tenon passing matching and the like. Because the parts can be disassembled only by forging, sawing or oxygen cutting during maintenance or replacement, the parts cannot be used for a second time generally. Also, during connection, attention should be paid to process quality, technical inspection and remedial measures (e.g., correction, polishing, etc.).
Threaded connection refers to a detachable connection in which a threaded member (or threaded portion of a connected member) is used to connect the connected member into one body.
Sliding connection means that two objects are in contact but not fixed, and the two objects can slide relatively.
Rotational coupling means that the coupling between the parts causes the parts to rotate relative to each other.
The beneficial effects of the present disclosure are:
the unloading capacity of the unloading device is adjusted by changing the friction force between the friction plate and the unloading wheel.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described, and it will be apparent to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic overall construction of an embodiment of the present disclosure;
fig. 2 is a schematic view of a platen structure according to an embodiment of the present disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments in this disclosure without inventive faculty, are intended to fall within the scope of this disclosure.
In the description of the present disclosure, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate an orientation or positional relationship, merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present disclosure.
An embodiment of an unloading device for a horizontal axis wind turbine is described herein in connection with fig. 1-2, according to the idea of the utility model. Specifically, the unloading device is configured as a split structure having three members, namely, a rotation support shaft 1, a mounting plate 3, and a pressing plate 4. Through the mutual cooperation of the structures such as the unloading wheel 2, the friction plate 5, the pressure spring 6, the bolt 7 and the like, the nut 8 is rotated by tools such as a spanner and the like to adjust the distance between the mounting plate 3 and the pressing plate 4, when the distance is reduced, the pressure spring 6 is stressed to shrink, the reverse acting force of the pressure spring 6 to the pressing plate 4 is increased, the positive pressure of the friction plate 5 to the unloading wheel 2 is further increased, and the friction force between the friction plate 5 and the unloading wheel 2 is further increased, so that the unloading capacity of the unloading device is adjusted.
As shown in fig. 1-2, an unloading device of a horizontal axis wind turbine includes:
the rotary support shaft 1 is fixedly connected with an unloading wheel 2;
a mounting plate 3, the mounting plate 3 being rotatably connected to the rotating support shaft 1;
the pressing plate 4 is rotatably connected to the rotary support shaft 1 and positioned between the mounting plate 3 and the unloading wheel 2, and a friction plate 5 is fixedly connected to one side of the pressing plate 4 positioned on the unloading wheel 2;
the pressure spring 6 is sleeved on the rotary support shaft 1 and is positioned between the mounting plate 3 and the pressing plate 4;
the bolt 7, the bolt 7 passes clamp plate 4, mounting panel 3 and nut 8 threaded connection in proper order.
When the unloading device is used, the unloading device of the wind driven generator can be adjusted according to the local wind force condition, during adjustment, the nut 8 is rotated by a tool such as a wrench to adjust the distance between the mounting plate 3 and the pressing plate 4, when the distance is reduced, the pressure spring 6 is stressed to shrink, the reverse acting force of the pressure spring 6 on the pressing plate 4 is increased, the positive pressure of the friction plate 5 on the unloading wheel 2 is further increased, and the friction force between the friction plate 5 and the unloading wheel 2 is increased, so that the unloading capacity of the unloading device is adjusted.
Furthermore, in the illustrated embodiment, the mounting plate 3 is mainly used for providing pressure for the compression spring 6, and in some embodiments, the shape of the mounting plate 3 may be square, rectangular, circular, etc., and for the technical solution of the present utility model, the shape of the mounting plate 3 is circular.
Furthermore, in the illustrated embodiment, the pressure plate 4 is mainly used to provide pressure to the friction plate 5, and in some embodiments, the shape of the pressure plate 4 may be square, rectangular, circular, etc., and for the technical solution of the present utility model, the shape of the pressure plate 4 is circular.
The rotary fulcrum 1 is rotatably connected to the shield plate 9. The rotary support shaft 1 and the protection plate 9 are rotatably connected through a second rotary bearing 15.
At least two bolts 7 are arranged between the pressing plate 4 and the mounting plate 3. Four bolts 7 are arranged in the utility model, and four bolts 7 are selected, so that the utility model is more firm and reliable. Meanwhile, the bolts 7 are fixedly connected with the protection plates 9. The arrangement of the bolts 7 can prevent the mounting plate 3 and the pressing plate 4 from rotating along with the rotating support shaft 1.
The middle of the protection plate 9 is rotatably connected with a fan main shaft 10. The fan main shaft 10 is in rotary connection with the protection plate 9 through a first rotary bearing 14. The outer side end of the fan main shaft 10 is fixedly connected with fan blades, and the fan blades are used for receiving wind resistance to push the fan main shaft 10 to rotate.
The fan main shaft 10 is fixedly connected with a first gear 11, the rotating support shaft 1 is fixedly connected with a second gear 12, and a chain 13 is connected between the first gear 11 and the second gear 12 in a meshed manner. The fan blades on the fan main shaft 10 are driven by wind power to drive the fan main shaft 10 to rotate, and the first gear 11, the second gear 12 and the chain 13 drive the rotary support shaft 1 and the unloading wheel 2 to rotate, so that mutual friction occurs between the unloading wheel 2 and the friction plate 5, the speed of the unloading wheel 2 is reduced, the rotating speed of the fan main shaft 10 is further reduced, and the purpose of protecting the wind driven generator is achieved.
The unloading device of the horizontal-axis wind turbine provided by the utility model is further described below with reference to the accompanying drawings and the implementation modes.
The rotary support shaft 1 is fixedly connected with an unloading wheel 2;
a mounting plate 3, the mounting plate 3 being rotatably connected to the rotating support shaft 1;
the pressing plate 4 is rotatably connected to the rotary support shaft 1 and positioned between the mounting plate 3 and the unloading wheel 2, and a friction plate 5 is fixedly connected to one side of the pressing plate 4 positioned on the unloading wheel 2;
the pressure spring 6 is sleeved on the rotary support shaft 1 and is positioned between the mounting plate 3 and the pressing plate 4;
the bolt 7, the bolt 7 passes clamp plate 4, mounting panel 3 and nut 8 threaded connection in proper order.
The rotary support shaft 1 and the fan main shaft 10 are rotationally connected to the protection plate 9, the bolt 7 is fixedly connected to the protection plate 9, the fan main shaft 10 is fixedly connected with a first gear 11, the rotary support shaft 1 is fixedly connected with a second gear 12, and a chain 13 is meshed and connected between the first gear 11 and the second gear 12. The fan blades on the fan main shaft 10 are driven by wind power to drive the fan main shaft 10 to rotate, and the first gear 11, the second gear 12 and the chain 13 drive the rotary support shaft 1 and the unloading wheel 2 to rotate, so that mutual friction occurs between the unloading wheel 2 and the friction plate 5, the speed of the unloading wheel 2 is reduced, the rotating speed of the fan main shaft 10 is further reduced, and the purpose of protecting the wind driven generator is achieved. The distance between the mounting plate 3 and the pressing plate 4 is adjusted by rotating the nut 8 through tools such as a spanner, when the distance is reduced, the pressure spring 6 is stressed to shrink, the reverse acting force of the pressure spring 6 on the pressing plate 4 is increased, the positive pressure of the friction plate 5 on the unloading wheel 2 is further increased, and the friction force between the friction plate 5 and the unloading wheel 2 is further increased, so that the unloading capacity of the unloading device is adjusted.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which have been described in the foregoing and description merely illustrates the principles of the disclosure, and that various changes and modifications may be made therein without departing from the spirit and scope of the disclosure, which is defined in the appended claims.
Claims (8)
1. An unloading device of a horizontal axis wind turbine, comprising:
a rotary support shaft (1), wherein an unloading wheel (2) is fixedly connected to the rotary support shaft (1);
the mounting plate (3), the said mounting plate (3) is connected to the said rotary fulcrum (1) rotatably;
the pressing plate (4) is rotationally connected to the rotary support shaft (1) and positioned between the mounting plate (3) and the unloading wheel (2), and a friction plate (5) is fixedly connected to one side of the pressing plate (4) positioned on the unloading wheel (2);
the pressure spring (6) is sleeved on the rotary support shaft (1) and is positioned between the mounting plate (3) and the pressing plate (4);
the bolt (7) sequentially penetrates through the pressing plate (4) and the mounting plate (3) to be in threaded connection with the nut (8).
2. Unloading device for a horizontal axis wind turbine according to claim 1, characterized in that at least two bolts (7) are arranged between the pressure plate (4) and the mounting plate (3).
3. Unloading device for a horizontal axis wind turbine according to claim 1, characterized in that the swivel fulcrum (1) is rotatably connected to a protection plate (9).
4. A horizontal axis wind turbine unloading device according to claim 3, characterized in that the bolts (7) are fixedly connected with the protection plate (9).
5. A horizontal axis wind turbine unloading device according to claim 3, characterized in that the middle of the protection plate (9) is rotatably connected with a fan main shaft (10).
6. The unloading device of the horizontal-axis wind turbine according to claim 5, wherein a first gear (11) is fixedly connected to the fan main shaft (10), a second gear (12) is fixedly connected to the rotating support shaft (1), and a chain (13) is connected between the first gear (11) and the second gear (12) in a meshed manner.
7. Unloading device for a horizontal axis wind turbine according to claim 5, characterized in that the fan main shaft (10) is in rotational connection with the protection plate (9) via a first rotational bearing (14).
8. A horizontal axis wind turbine unloading device according to claim 3, characterized in that the rotational connection between the rotational fulcrum (1) and the shield plate (9) is realized by means of a second rotational bearing (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033395.6U CN219888194U (en) | 2023-05-04 | 2023-05-04 | Unloading device of horizontal-axis wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033395.6U CN219888194U (en) | 2023-05-04 | 2023-05-04 | Unloading device of horizontal-axis wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219888194U true CN219888194U (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321033395.6U Active CN219888194U (en) | 2023-05-04 | 2023-05-04 | Unloading device of horizontal-axis wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219888194U (en) |
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2023
- 2023-05-04 CN CN202321033395.6U patent/CN219888194U/en active Active
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