High-cold wind turbine generator unit and nacelle pedestal thereof

Abstract

The utility model discloses a kind of high-cold wind generating set and its cabin seat, it is related to wind power generation equipment technical field, the cabin seat of high-cold wind generating set includes seat body, heat conduction sheet, gear and drive assembly, the bottom wall of seat body corresponding hinged side is equipped with through-hole, connecting side is used to be connected with cabin;Heat conduction sheet is set in the position of seat body outside corresponding through-hole, and heating element is set on heat conduction sheet;Gear one end is attached and rotationally connected with heat conduction sheet, the other end of gear is connected with the tower of high-cold wind generating set, and heat conduction sheet covers each gear tooth of gear;Drive assembly includes driving part and the driving wheel meshed with gear.The utility model is through the design of seat body and heat conduction sheet, on the basis of not occupying cabin internal space, additional heat conduction sheet and heating element are set, keep gear in optimum working temperature by heat conduction sheet and heating element, thereby will not affect the rotation of cabin, gear is not easy to damage, prolong the service life of gear.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment technology, and in particular to a high-altitude cold-weather wind turbine generator set and its nacelle base. Background Technology

[0002] Wind power, as a renewable energy source, has been widely used and rapidly developed globally. Wind turbines convert wind energy into rotational kinetic energy through blades, which then drive a generator via a shaft to convert mechanical energy into electrical energy, thus realizing the conversion of wind energy into electricity. Furthermore, to ensure the blades of a wind turbine remain flush with the windward side, the nacelle and tower are typically connected by gears for a rotatable connection.

[0003] However, when facing high-altitude and cold regions, the gears at the connection between the nacelle and the tower in existing technologies are prone to freezing due to low temperatures, which can affect the rotation of the nacelle. Alternatively, the low temperature can cause the strength and toughness of the metal gears to decrease, making them prone to damage and affecting their service life. Utility Model Content

[0004] The main purpose of this utility model is to propose a high-altitude cold-weather wind turbine generator set and its nacelle, which aims to solve the problem that gears in the prior art are prone to icing or damage in high-altitude cold regions, affecting the service life of the gears.

[0005] To achieve the above objectives, this utility model proposes a nacelle base for a high-altitude, cold-weather wind turbine generator set, comprising: The seat has a hinge side and a connecting side on opposite sides along the vertical direction. The bottom wall of the seat has a through hole corresponding to the hinge side, and the connecting side is used to connect with the cabin. A heat-conducting sheet is disposed on the outside of the base body at a position corresponding to the through hole, and a heating element for heating the heat-conducting sheet is disposed on the heat-conducting sheet; A gear, one end of which is attached to and rotatably connected to the heat-conducting plate along its axial direction, and the other end of which is fixed to the tower of the high-altitude wind turbine generator set, with the heat-conducting plate covering each tooth of the gear; A drive assembly, comprising a drive member and a drive wheel meshing with the gear, wherein the drive member can drive the drive wheel to rotate along the gear's ring tooth, thereby causing the base to rotate relative to the tower.

[0006] In one embodiment, the through hole is a circular through hole, the heat-conducting plate is arranged in a ring shape, and the outer diameter of the heat-conducting plate is larger than the outer diameter of the through hole. The outer edge of the heat-conducting plate is connected to the outer side of the base body at the position corresponding to the through hole, and the inner edge of the heat-conducting plate extends toward the center of the through hole.

[0007] In one embodiment, the gear is an internal meshing gear, and the outer diameter of the gear is the same as and concentrically arranged with the outer diameter of the heat-conducting sheet, so that the outer peripheral wall of the gear is flush with the outer peripheral wall of the heat-conducting sheet.

[0008] In one embodiment, the driving member is fixedly connected to the heat-conducting plate, the output shaft of the driving member passes through the inner ring of the heat-conducting plate and extends out of the base body, and the driving wheel is connected to the end of the output shaft that extends out of the base body.

[0009] In one embodiment, there are multiple heating elements, which are spaced apart circumferentially along the side of the heat-conducting sheet facing the base.

[0010] In one embodiment, the seat body is provided to protrude upward on both sides of the connecting side along the first horizontal direction to form two support structures respectively. Each support structure extends along the second horizontal direction and is used to connect with the cabin, wherein the first horizontal direction and the second horizontal direction are different.

[0011] In one embodiment, each of the support structures includes an extension plate extending upward from the base and a support plate extending outward from one end of the extension plate away from the base along the first horizontal direction. The support plate is used to connect with the cabin and has a first screw hole in the vertical direction. The support plate is fastened to the cabin by a first threaded member passing through the first screw hole.

[0012] In one embodiment, each of the support plates is provided with a connecting plate at one end along the second horizontal direction, and the connecting plate is provided with a second screw hole along the second horizontal direction. The connecting plate is fastened to the engine room by a second threaded member passing through the second screw hole.

[0013] In one embodiment, the base body is provided with a reinforcing plate extending to connect with the support plate at the location corresponding to the connecting plate.

[0014] This utility model also provides a high-altitude cold-weather wind turbine generator set, which uses the nacelle base of the high-altitude cold-weather wind turbine generator set as described above.

[0015] This invention adds a nacelle base between the nacelle and the tower, and creates through holes in the nacelle base corresponding to the tower position. A gear is positioned between the nacelle base and the tower. A drive component drives a drive wheel to rotate relative to the gear, causing the base to rotate relative to the tower, thus achieving nacelle rotation. The space within the base is utilized to install heat-conducting plates. These plates adhere to and cover the gear teeth, and a heating element heats the heat-conducting plates, ensuring sufficient heat conduction to the gear and its teeth, maintaining a temperature that prevents freezing and provides optimal strength and toughness. This does not affect nacelle rotation, reduces gear damage, and extends gear lifespan. Through the design of the base and heat-conducting plates, this invention achieves the addition of heat-conducting plates and heating elements without occupying internal nacelle space. These elements maintain the gear at its optimal operating temperature, preventing nacelle rotation, reducing gear damage, and extending gear lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the nacelle of a high-altitude wind turbine generator set provided in an embodiment of the present invention from one perspective; Figure 2 This is a structural schematic diagram of the nacelle of a high-altitude wind turbine generator set provided in one embodiment of the present invention from another perspective.

[0018] Explanation of icon numbers: 100. Cabin seat; 1. Seat body; 11. Hinge side; 12. Connecting side; 13. Through hole; 14. Reinforcing plate; 2. Heat-conducting plate; 21. Heating element; 3. Gear; 31. Gear tooth; 4. Driving element; 5. Support structure; 51. Extension plate; 52. Support plate; 53. First screw hole; 54. Connecting plate; 55. Second screw hole; 6. Tower.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] When facing high-altitude and cold regions, the gears at the connection between the nacelle and the tower in existing technologies are prone to freezing due to low temperatures, which can affect the rotation of the nacelle. Alternatively, the low temperature can cause the strength and toughness of the metal gears to decrease, making them prone to damage and affecting their service life.

[0024] To address the aforementioned issues, this utility model proposes a nacelle base 100 for a high-altitude, cold-weather wind turbine generator set.

[0025] Please combine Figure 1 and Figure 2The nacelle 100 of the high-altitude wind turbine generator set in this embodiment includes a base 1, a heat-conducting plate 2, a gear 3, and a drive assembly 4. The base 1 has a hinge side 11 and a connecting side 12 on opposite sides along the vertical direction. A through hole 13 is provided on the bottom wall of the base 1 corresponding to the hinge side 11, and the connecting side 12 is used to connect with the nacelle. The heat-conducting plate 2 is disposed on the outer side of the base 1 at the position corresponding to the through hole 13, and a heating element 21 for heating the heat-conducting plate 2 is provided on the heat-conducting plate 2. One end of the gear 3 along its axial direction is attached to and rotatably connected to the heat-conducting plate 2, and the other end of the gear 3 along its axial direction is fixed to the tower 6 of the high-altitude wind turbine generator set. The heat-conducting plate 2 covers each tooth 31 of the gear 3. The drive assembly 4 includes a drive element 4 and a drive wheel that meshes with the gear 3. The drive element 4 can drive the drive wheel to rotate along the gear ring of the gear 3, so as to drive the base 1 to rotate relative to the tower 6.

[0026] It should be noted that the driving component 4 can be a drive motor in the prior art, and the heating component can be a heating plate, heating wire, etc. in the prior art.

[0027] The technical solution of this utility model involves adding a nacelle base between the nacelle and the tower 6, and opening a through hole 13 at the position of the nacelle base corresponding to the tower 6. A gear 3 is positioned between the nacelle base and the tower 6. A driving component 4 drives a driving wheel to rotate relative to the gear 3, causing the base 1 to rotate relative to the tower 6, thereby achieving the rotation of the nacelle. A heat-conducting plate 2 is installed in the space of the base 1, which is attached to and covers each tooth 31 of the gear 3. A heating element 21 heats the heat-conducting plate 2, ensuring sufficient heat conduction for the gear 3 and each tooth 31, maintaining a temperature that prevents freezing and provides optimal strength and toughness. This does not affect the rotation of the nacelle, reduces the risk of gear 3 damage, and extends the service life of the gear 3. Through the design of the base 1 and the heat-conducting plate 2, this utility model achieves the additional installation of the heat-conducting plate 2 and the heating element 21 without occupying internal nacelle space. The heat-conducting plate 2 and the heating element 21 maintain the gear 3 at its optimal operating temperature, thus not affecting the rotation of the nacelle, reducing the risk of gear 3 damage, and extending the service life of the gear 3.

[0028] In one embodiment, the through hole 13 is a circular through hole 13, the heat-conducting plate 2 is arranged in a ring shape, and the outer diameter of the heat-conducting plate 2 is larger than the outer diameter of the through hole 13. The outer edge of the heat-conducting plate 2 is connected to the outer side of the base 1 at the position corresponding to the through hole 13, and the inner edge of the heat-conducting plate 2 extends toward the center of the through hole 13.

[0029] By designing the through-hole 13 as a circular through-hole 13 and arranging the heat-conducting plate 2 in a ring shape, the heat-conducting plate 2 structurally forms a complete fit with the through-hole 13. The outer diameter of the heat-conducting plate 2 is larger than the outer diameter of the through-hole 13, and the outer edge of the heat-conducting plate 2 is connected to the position corresponding to the through-hole 13 on the outside of the base 1, allowing the heat-conducting plate 2 to be stably installed on the outside of the base 1. The inner edge of the heat-conducting plate 2 extends towards the center of the through-hole 13, so that the heat-conducting plate 2 covers the entire outer surface of the gear 3 in the area of ​​the through-hole 13, thereby allowing the heat-conducting plate 2 to fit more fully with the gear 3 and cover each tooth 31 of the gear 3. Through this structural design, the heat-conducting plate 2 can more efficiently transfer the heat generated by the heating element 21 to the gear 3, allowing the gear 3 to maintain a temperature that prevents freezing and maintains optimal strength and toughness in cold environments, further ensuring the normal rotation of the nacelle relative to the tower 6 and extending the service life of the gear 3.

[0030] In one embodiment, the gear 3 is an internal meshing gear 3, and the outer diameter of the gear 3 is the same as the outer diameter of the heat-conducting plate 2 and is concentrically arranged so that the outer peripheral wall of the gear 3 is flush with the outer peripheral wall of the heat-conducting plate 2.

[0031] By designing gear 3 as an internal meshing gear, and making the outer diameter of gear 3 the same as and concentrically positioned with the outer diameter of heat-conducting plate 2, the outer peripheral wall of gear 3 can remain flush with the outer peripheral wall of heat-conducting plate 2. This structure allows heat-conducting plate 2 to fit more tightly and evenly against the outer peripheral wall of gear 3, resulting in more complete coverage of each tooth 31 of gear 3 by heat-conducting plate 2 and more efficient heat conduction. Furthermore, the flushness of the outer peripheral wall of gear 3 with the outer peripheral wall of heat-conducting plate 2, along with the design of the internal meshing gear 3, prevents gear teeth 31 from directly contacting the cold air of the external environment, avoids moisture in the air from adhering to gear 3 and freezing, reduces the power consumption of heating element 21, and extends the service life of gear 3.

[0032] In one embodiment, the drive member 4 is fixedly connected to the heat-conducting plate 2, the output shaft of the drive member 4 passes through the inner ring of the heat-conducting plate 2 and extends out of the seat body, and the drive wheel is connected to the end of the output shaft extending out of the seat body and meshes with the gear 3.

[0033] By fixing the drive component 4 to the heat-conducting plate 2, the drive component 4 is more securely positioned in the area corresponding to the through hole 13 on the base 1. The output shaft of the drive component 4 passes through the heat-conducting plate 2 and extends out of the base, allowing the drive wheel to mesh with the gear 3 on the outside of the base. When the drive wheel rotates relative to the gear 3, the gear 3 remains within the area covered by the heat-conducting plate 2, continuously receiving heat from the heating element 21 through the heat-conducting plate 2. This structure ensures the transmission efficiency between the drive component 4 and the gear 3, while maintaining the gear 3 at a temperature that prevents icing and provides optimal strength and toughness, thereby ensuring the normal rotation of the base 1 relative to the tower 6 and further improving the reliable operation of the cabin.

[0034] In one embodiment, there are multiple heating elements 21, which are spaced apart along the circumference of the heat-conducting plate 2 on the side of the heat-conducting plate 2 facing the base.

[0035] By setting multiple heating elements 21 and arranging them at intervals along the circumference of the heat-conducting plate 2, the heating elements 21 can uniformly heat the heat-conducting plate 2 from multiple directions. The multiple heating elements 21 are arranged along the side of the heat-conducting plate 2 facing the base, allowing the heat-conducting plate 2 to uniformly absorb the heat generated by the heating elements 21 on the side contacting the gear 3. This results in a more comprehensive and uniform transfer of heat from the heat-conducting plate 2 to each tooth 31 of the gear 3.

[0036] In one embodiment, the seat body 1 is provided to protrude upward on both sides of the corresponding connecting side 12 along the first horizontal direction to form two support structures 5 respectively. Each support structure 5 extends along the second horizontal direction and is used to connect with the cabin, wherein the first horizontal direction and the second horizontal direction are different.

[0037] By extending upward along the opposite sides of the corresponding connecting side 12 of the seat body 1 to form a support structure 5, the support structure 5 can be connected to the cabin on both sides, and each support structure 5 extends along the second horizontal direction, thereby increasing the area of ​​the support structure 5 and increasing its connection area with the cabin, thus providing a stable cabin connection.

[0038] In one embodiment, each support structure 5 includes an extension plate 51 extending upward from the seat body 1 and a support plate 52 extending outward from the end of the extension plate 51 away from the seat body 1 along a first horizontal direction. The support plate 52 is used to connect with the cabin and has a first screw hole 53 opened vertically. The support plate 52 is used to fasten to the cabin by a first threaded member passing through the first screw hole 53.

[0039] The support plate 52 extends along the first horizontal direction to ensure that it is horizontally positioned when connected to the cabin, thereby improving the stability of the cabin. At the same time, the first screw hole 53 provided on the support plate 52 along the vertical direction allows the support plate 52 to be fastened to the cabin through the first threaded part passing through the first screw hole 53, thereby achieving a reliable and stable connection between the cabin and the seat body 1.

[0040] In one embodiment, each support plate 52 is provided with a connecting plate 54 at one end along the second horizontal direction. The connecting plate 54 is provided with a second screw hole 55 along the second horizontal direction. The connecting plate 54 is fastened to the engine compartment by a second threaded part passing through the second screw hole 55.

[0041] By providing a connecting plate 54 at one end of the support plate 52 along the second horizontal direction, the nacelle also has a reliable locking structure in the second horizontal direction. A second threaded hole 55 is provided on the connecting plate 54 along the second horizontal direction, allowing the nacelle to be locked to the connecting plate 54 through the second threaded hole 55. Through the combined action of the first threaded hole 53 and the second threaded hole 55, the nacelle can be locked to the seat body 1 at multiple points in different directions, thereby significantly improving the overall stability and vibration resistance of the connection between the nacelle and the seat body 1.

[0042] In one embodiment, a reinforcing plate 14 extending to connect with the support plate 52 is provided at the location of the connecting plate 54 on the seat body. The reinforcing plate 14 can significantly improve the structural strength of the area of ​​the support plate 52 and the connecting plate 54, so that the cabin has higher stability when locked with the support plate 52 and the connecting plate 54 through the first screw hole 53 and the second screw hole 55. After the reinforcing plate 14 strengthens the structure of the seat body and the support plate 52 into a whole, it can reduce the structural deformation or stress concentration of the cabin caused by extremely low temperature or drastic temperature changes in the cold environment, and prevent the cabin and the seat body 1 from becoming loose or not securely connected.

[0043] This utility model also provides a high-altitude cold-weather wind turbine generator set, which utilizes the nacelle 100 described above. The specific structure of the nacelle 100 of this high-altitude cold-weather wind turbine generator set is as described in the above embodiments. Since this high-altitude cold-weather wind turbine generator set adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0044] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made under the concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A nacelle seat of a high-cold wind turbine generator unit, characterized in that, include: The seat has a hinge side and a connecting side on opposite sides along the vertical direction. A through hole is provided on the bottom wall of the seat corresponding to the hinge side. The connecting side is used to connect with the cabin. A heat-conducting sheet is disposed on the outside of the base body at a position corresponding to the through hole, and a heating element for heating the heat-conducting sheet is disposed on the heat-conducting sheet; A gear, one end of which is attached to and rotatably connected to the heat-conducting plate along its axial direction, and the other end of which is fixed to the tower of the high-altitude wind turbine generator set, with the heat-conducting plate covering each tooth of the gear; A drive assembly, comprising a drive member and a drive wheel meshing with the gear, wherein the drive member can drive the drive wheel to rotate along the gear's ring tooth, thereby causing the base to rotate relative to the tower.

2. The nacelle of the high-altitude wind turbine generator set as described in claim 1, characterized in that, The through hole is a circular through hole, the heat-conducting plate is arranged in a ring shape, and the outer diameter of the heat-conducting plate is larger than the outer diameter of the through hole. The outer edge of the heat-conducting plate is connected to the outer side of the base corresponding to the position of the through hole, and the inner edge of the heat-conducting plate extends toward the center of the through hole.

3. The nacelle of the high-altitude wind turbine generator set as described in claim 2, characterized in that, The gear is an internal meshing gear, and the outer diameter of the gear is the same as the outer diameter of the heat-conducting plate and is concentrically arranged so that the outer peripheral wall of the gear is flush with the outer peripheral wall of the heat-conducting plate.

4. The nacelle of the high-altitude wind turbine generator set as described in claim 3, characterized in that, The driving component is fixedly connected to the heat-conducting plate, the output shaft of the driving component passes through the inner ring of the heat-conducting plate and extends out of the base body, and the driving wheel is connected to the end of the output shaft that extends out of the base body.

5. The nacelle of the high-altitude wind turbine generator set as described in any one of claims 1 to 4, characterized in that, The number of heating elements is multiple, and the multiple heating elements are arranged at intervals along the circumference of the heat-conducting plate on the side of the heat-conducting plate facing the base.

6. The nacelle of the high-altitude wind turbine generator set as described in any one of claims 1 to 4, characterized in that, The seat body is provided with upward protrusions on both sides of the connecting side along the first horizontal direction to form two support structures respectively. Each support structure extends along the second horizontal direction and is used to connect with the cabin. The first horizontal direction and the second horizontal direction are different.

7. The nacelle of the high-altitude wind turbine generator set as described in claim 6, characterized in that, Each of the aforementioned support structures includes an extension plate extending upward from the base and a support plate extending outward from one end of the extension plate away from the base along the first horizontal direction. The support plate is used to connect with the cabin and has a first screw hole in the vertical direction. The support plate is fastened to the cabin by a first threaded member passing through the first screw hole.

8. The nacelle of the high-altitude wind turbine generator set as described in claim 7, characterized in that, Each of the support plates is provided with a connecting plate at one end along the second horizontal direction. The connecting plate is provided with a second screw hole along the second horizontal direction. The connecting plate is fastened to the engine room by a second threaded component passing through the second screw hole.

9. The nacelle of the high-altitude wind turbine generator set as described in claim 8, characterized in that, The base body is provided with a reinforcing plate that extends to connect with the support plate at the location corresponding to the connecting plate.

10. A high-altitude, cold-weather wind turbine generator set, characterized in that, The high-altitude wind turbine generator set uses a nacelle base as described in any one of claims 1 to 9.

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