Fixed Bracket and Wind Power Generation Unit
The fixed bracket with secure mounting holes on a bracket body addresses the issue of loose connections between the pitch cabinet and hub, ensuring stable attachment and preventing collisions, while allowing passage for oil pipes and cables.
Patent Information
- Application Number
- JP2025001573U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-06-28
- Filing Date
- 2025-05-19
- Publication Date
- 2025-07-16
- Estimated Expiration
- 2035-05-19
AI Technical Summary
The direct connection between the pitch cabinet and the hub in wind power generation units leads to potential collision and damage when the hub rotates, due to loose connections.
A fixed bracket with a bracket body featuring first and second surfaces, each with mounting holes for secure attachment to the hub and pitch cabinet, respectively, preventing direct transmission of torsional forces and collisions.
The fixed bracket stabilizes the connection between the hub and pitch cabinet, preventing collisions and enhancing structural integrity while allowing passage for oil pipes and cables, with a rectangular cross-section providing high torsional resistance.
Smart Images
Figure 0003252032000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wind power generation, and specifically to a fixed bracket and a wind power generation unit.
Background Art
[0002] The pitch system for wind power generation, as a core component of a wind power generation unit, mainly plays a role in dynamically adjusting the pitch angle of the wind turbine blades of the wind power generation unit. Its purpose is to ensure the power balance of the wind power generation unit when the wind speed is above the rated wind speed, and to ensure the overall safety of the wind power generation unit by means of an aerodynamic brake under extreme weather conditions. Through pitch control, the system can effectively adjust the angle of attack of the wind turbine blades to meet the operating needs at different wind speeds, thereby realizing the high efficiency and stability of wind power generation.
[0003] Existing pitch cabinets need to control the pitch motor. However, the pitch cabinet is often fixedly connected to the hub of the wind power generation unit. Since it is necessary to rotate the hub, during the use process, the pitch cabinet is directly connected to the hub. If the connection becomes loose, the two will collide with each other and damage the pitch cabinet.
Summary of the Invention
Problems to be Solved by the Invention
[0004] Therefore, the technical problem to be solved by the present invention is to provide a fixed bracket and a wind power generation unit in order to overcome the drawback of the prior art that when the pitch cabinet is directly connected to the hub and the hub needs to be rotated, if the connection between the two becomes loose, they will collide with each other and damage the pitch cabinet.
Means for Solving the Problems
[0005] In order to solve the above problems, the present invention A bracket body, on which a first surface and a second surface are correspondingly provided, a first mounting hole is provided on the first surface, the first mounting hole is suitable for being fixedly connected to a hub via a fastening member, a second mounting hole is provided on the second surface, and the second mounting hole is suitable for being fixedly connected to a pitch cabinet provided in the hub via a fastening member, and a fixing bracket including the bracket body is provided.
[0006] Optionally, the bracket body is provided hollow.
[0007] Optionally, the cross-section of the bracket body is rectangular.
[0008] Optionally, first mounting holes are respectively provided at both ends of the first surface of the bracket body, and a safety suspension point hole and a measurement and control cabinet bracket mounting hole are further provided between the two first mounting holes.
[0009] Optionally, the hollow interior of the bracket body is suitable for passing an oil pipe and a cable.
[0010] Optionally, a third surface is provided on the bracket body, the third surface is provided perpendicular to the first surface and the second surface respectively, a bundling hole is provided on the third surface, the bundling hole is suitable for passing a bundling band, and the bundling band is used for bundling an oil pipe or a cable.
[0011] Optionally, a fourth surface is provided on the bracket body, a wire arranging hole is provided on the fourth surface, the wire arranging hole is rectangular, and the fourth surface is provided corresponding to the third surface.
[0012] A wind power generation unit includes the above fixing bracket, and the number of the brackets is two.
[0013] Optionally, it further includes a hub and a pitch cabinet.
[0014] The technical solution of the present invention has the following advantages.
[0015] 1. The fixing bracket provided by the present invention is a bracket body. On the bracket body, a first surface and a second surface are correspondingly provided. On the first surface, a first mounting hole is provided. The first mounting hole is suitable for being fixedly connected to the hub through a fastening member. On the second surface, a second mounting hole is provided. The second mounting hole is suitable for being fixedly connected to a pitch cabinet provided in the hub through a fastening member. The bracket body includes a bracket body. The bracket body enables the hub and the pitch cabinet to be correspondingly provided, and torsional forces and the like are not directly transmitted to the hub, but are directly transmitted to the bracket body by the pitch cabinet, avoiding mutual interference between the two, preventing mutual collision between the pitch cabinet and the hub, and playing a role in protecting the pitch cabinet.
[0016] 2. In the fixing bracket provided by the present invention, the bracket body is provided hollow. By providing the bracket body hollow so that articles can pass through, the whole bracket body looks more beautiful.
[0017] 3. In the fixing bracket provided by the present invention, the cross-section of the bracket body is rectangular. Compared with other shapes such as circular, the rectangular shape has higher torsional resistance, can withstand the gravity from the pitch cabinet, and can cope with the torsional fatigue load caused by the gravitational acceleration of the pitch cabinet, having strong fatigue resistance.
[0018] 4. In the fixing bracket provided by the present invention, at both ends of the first surface of the bracket body, first mounting holes are respectively provided. Between the two first mounting holes, a safety suspension point hole and a measurement / control cabinet bracket mounting hole are further provided. By providing the first mounting holes at both ends, both ends of the bracket body are fixedly connected to the hub respectively, strengthening the connection stability of the bracket body. Also, by respectively mounting objects corresponding to the safety suspension point hole and the measurement / control cabinet bracket mounting hole, a rich interface is provided for other structural members in the hub.
[0019] 5. In the fixed bracket provided by the present invention, the hollow interior of the bracket body is suitable for passing an oil pipe and a cable, and the bracket body functions as a bridge for wiring the cable and the oil pipe, and also looks beautiful.
[0020] 6. In the fixed bracket provided by the present invention, a third surface is provided on the bracket body. The third surface is provided perpendicular to the first surface and the second surface respectively. A bundling hole is provided on the third surface. The bundling hole is suitable for passing a bundling band. The bundling band is used to bundle the oil pipe or the cable. The oil pipe or the cable is bundled by the bundling band, and the bundling band plays a fixing role.
[0021] 7. In the fixed bracket provided by the present invention, a fourth surface is provided on the bracket body. A wire arranging hole is provided on the fourth surface. The wire arranging hole is rectangular. The fourth surface is provided corresponding to the third surface. Through the wire arranging hole, an operator can easily arrange the oil pipe or the cable in the bracket body with a tool.
[0022] 8. In the power generation unit provided by the present invention, since the fixed bracket described in any one of the above is used, it has the advantages described in any one of the above.
Brief Description of the Drawings
[0023] In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings necessary for the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor.
Figure 1
Figure 2
Figure 3
Figure 4
Mode for Carrying Out the Invention
[0024] The technical solution of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present invention.
[0025] In the description of the present invention, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is the orientation or positional relationship shown based on the drawings. It is only for the purpose of easily explaining and simplifying the description of the present invention, and does not indicate or imply that the device or element must have a specific orientation and be constructed and operated in a specific orientation. Therefore, it cannot be understood as limiting the present invention. Also, the terms "first", "second", and "third" are only used for the purpose of description and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present invention, unless specifically defined and limited otherwise, the terms "mounting", "connecting", and "connecting" should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or an integral connection, or a mechanical connection, an electrical connection, or a direct connection, an indirect connection through an intermediate medium, or a communication inside two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
[0027] Also, the technical features related to different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0028]
[0028] In one specific embodiment of the fixing bracket shown in FIGS. 1 to 3, a bracket body 1 with a rectangular cross-section is provided. The bracket body 1 is provided hollow, and the hollow interior is suitable for passing an oil pipe and a cable.
[0029] As shown in FIGS. 2, 3 and 4, the bracket body 1 is provided with a first surface 11 and a second surface 13 which are provided in parallel and correspondingly. At both ends of the first surface 11, first mounting holes 12 are respectively provided. The first mounting holes 12 are suitable for being fixedly connected to the hub 3 via fastening members. Specifically, the fastening member is a bolt. As shown in FIG. 2, on the second surface 13, eight second mounting holes 14 are provided at intervals. Each second mounting hole 14 is suitable for being fixedly connected to a pitch cabinet 2 provided in the hub 3 via a fastening member. Specifically, the fastening member is a bolt.
[0030] As shown in FIGS. 2 and 3, the bracket body 1 is further provided with a third surface 15 and a fourth surface 17. The third surface 15 and the fourth surface 17 are provided in parallel and correspondingly. The third surface 15 is provided perpendicular to the first surface 11 and the second surface 13 respectively. On the third surface 15, several bundling holes 16 are provided. The bundling holes 16 are suitable for passing a bundling band, and the bundling band is used to bundle an oil pipe or a cable. As shown in FIG. 3, the bracket body 1 is provided with a fourth surface 17. On the fourth surface 17, eight wire arranging holes 18 are provided. The wire arranging holes 18 are rectangular, and the intervals between adjacent wire arranging holes 18 are equal.
[0031]
[0029] The wind power generation unit includes the above fixing bracket, the number of the bracket bodies 1 is two, and further includes a hub 3 and a pitch cabinet 2. The fixing bracket and the pitch cabinet 2 are provided in the hub 3.
[0032] In the specific installation process, first, put the bracket body 1 into the hub 3, fixedly connect the bracket body 1 to the hub 3 with bolts, then pass the oil pipe or cable through the bracket body 1, and finally fixedly connect the pitch cabinet 2 to the bracket body 1.
[0033] As an alternative embodiment, the number of the second mounting holes 14 may be one, two, three, or even more.
[0034] As an alternative embodiment, between the two first mounting holes 12, a safety suspension point hole, a prevention bracket mounting hole, and a measurement / control cabinet bracket mounting hole may be provided, and the corresponding devices are fixed by providing the corresponding holes.
[0035] Obviously, the above embodiments are only examples for clarity of explanation and do not limit the embodiments. Those skilled in the art can also make various other forms of changes or modifications based on the above description. It is not necessary and impossible to list all the embodiments here. The obvious changes or modifications derived therefrom are also within the protection scope of the present invention.
Explanation of Reference Numerals
[0036] 1 Bracket body 11 First surface 12 First mounting hole 13 Second surface 14 Second mounting hole 15 Third surface 16 Binding hole 17 Fourth surface 18 Wire arranging hole 2 Pitch cabinet 3 Hub
Claims
1. A bracket body (1), wherein the bracket body (1) is provided with a correspondingly provided first surface (11) and a second surface (13), the first surface (11) is provided with a first mounting hole (12), and the first mounting hole (12) is suitable for being fixedly connected to a hub (3) via a fastening member. The second surface (13) is provided with a second mounting hole (14), and the second mounting hole (14) is suitable for being fixedly connected to a pitch cabinet (2) provided in the hub (3) via a fastening member. A fixed bracket, characterized in that it comprises the bracket body (1).
2. The fixed bracket according to claim 1, characterized in that the bracket body (1) is provided hollowly.
3. The fixed bracket according to claim 2, characterized in that the cross-section of the bracket body (1) is rectangular.
4. The fixed bracket according to claim 3, characterized in that the first mounting holes (12) are respectively provided at both ends of the first surface (11) of the bracket body (1), and a safety suspension point hole and a measurement / control cabinet bracket mounting hole are provided between the two first mounting holes (12).
5. The fixed bracket according to claim 4, characterized in that the hollow interior of the bracket body (1) is suitable for passing an oil pipe and a cable.
6. The bracket body (1) is provided with a third surface (15), the third surface (15) is provided perpendicular to the first surface (11) and the second surface (13) respectively, the third surface (15) is provided with a bundling hole (16), and the bundling hole (16) is suitable for passing a bundling band. The bundling band is used for bundling an oil pipe or a cable. The fixed bracket according to claim 5, characterized in that it is so.
7. The bracket body (1) is provided with a fourth surface (17), the fourth surface (17) is provided with a wire arranging hole (18), the wire arranging hole (18) is rectangular, and the fourth surface (17) is provided corresponding to the third surface (15). The fixed bracket according to claim 6, characterized in that it is so.
8. A wind power generation unit, characterized in that it comprises the fixed bracket according to any one of claims 1 to 7, and the number of the fixed brackets is two.
9. The wind power generation unit according to claim 8, characterized in that it further comprises a hub (3) and a pitch cabinet (2).