Yaw collecting ring protection device of wind driven generator
By designing a protective device in the wind turbine generator set, and using a protective cover and vacuum environment to protect the yaw collector ring, the problem of damage to the collector ring during transportation and storage is solved, thus achieving the safety and reliability of the collector ring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-13
AI Technical Summary
During maintenance, troubleshooting, and cable unwinding operations, the yaw collector ring of a wind turbine is susceptible to impact from foreign objects and corrosion, which can affect its performance.
Design a yaw collector ring protection device for wind turbine generators, including a mounting base, a protective cover and a vacuum assembly to form a sealed chamber, fix the collector ring by a limiting component, use the vacuum environment to prevent corrosion, and protect the collector ring from damage during transportation.
It effectively protects the yaw collector ring from foreign object collisions and corrosion, ensuring its integrity and performance during transportation and storage, and improving the convenience of maintenance and operation.
Smart Images
Figure CN223993615U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wind turbine yaw collector ring technology, and in particular to a wind turbine yaw collector ring protection device. Background Technology
[0002] Yaw slip rings are power transmission components for wind turbine generators developed based on the principle of sliding contact conductivity. The design inputs for yaw slip rings include the electrical parameters of the wind turbine's main power generation circuit and the turbine's yaw operating parameters. The product design primarily aims to achieve both rotating and fixed transmission of the wind turbine's main current, while also considering the wind turbine's design requirements for reliability, operation, and maintenance. It enables the complete fixed laying of the wind turbine's main cable, eliminating the need for the twisted section of the power cable in the wind turbine generator set.
[0003] However, during maintenance, troubleshooting, and cable removal operations of wind turbine generators, the yaw collector ring needs to be removed. During transport and storage, the yaw collector ring is susceptible to impacts from foreign objects, especially in underground powerhouses where long-term storage can lead to corrosion. Therefore, to ensure that the performance of the yaw collector ring is not affected during maintenance, troubleshooting, and cable removal operations, this application proposes a yaw collector ring protection device for wind turbine generators. Utility Model Content
[0004] This application provides a yaw collector ring protection device for wind turbines to solve the technical problems described in the background art.
[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:
[0006] This application provides a yaw collector ring protection device for wind turbine generators, comprising:
[0007] The mounting base has a preset thickness and a first protective cover is provided on its upper surface. The top of the first protective cover has a through hole for placing the yaw collector ring therein.
[0008] The second protective cover has its bottom end sealed and detachably connected to the top end of the first protective cover, and is used to form a sealed chamber with the first protective cover to protect the yaw collector ring.
[0009] A vacuum pumping assembly, which is connected to the sealed chamber, is used to extract air from the sealed chamber to place the yaw collector ring in a vacuum environment.
[0010] Optionally, the inner bottom surface of the sealed chamber is provided with a buffer layer that has an anti-wear function;
[0011] The buffer layer is made of rubber or silicone and has a thickness of 7mm to 15mm.
[0012] Optionally, the first protective cover has a plurality of first limiting members at equal intervals on its inner peripheral wall near its top for limiting the outer peripheral side of the yaw collector ring inside.
[0013] The height of the first protective cover is greater than 2 / 3 of the height of the housing of the yaw collector ring and less than the height of the housing of the yaw collector ring.
[0014] Optionally, the inner top surface of the second protective cover is at a predetermined distance from the top surface of the yaw collector ring, and its inner top surface is provided with a second limiting member for limiting the top surface of the yaw collector ring.
[0015] Optionally, the first limiting member and the second limiting member are limiting members with the same structure, and the limiting member includes a connecting rod and a limiting plate;
[0016] One end of the connecting rod is disposed on the inner peripheral wall of the first protective cover or the inner top surface of the second protective cover, and the other end of the connecting rod is provided with the limiting plate. The side wall of the limiting plate away from the connecting rod abuts against the outer peripheral wall of the housing of the yaw collector ring or the top surface of the yaw collector ring to limit the yaw collector ring in the sealed chamber.
[0017] The length of the connecting rod is extendable.
[0018] Optionally, a protective layer is provided at the end of the limiting plate away from the connecting rod;
[0019] The protective layer is made of an elastic material and has a thickness of 0.5mm to 2mm.
[0020] Optionally, a door is provided on the side wall of the second protective cover.
[0021] Optionally, both the inner walls of the first protective cover and the inner walls of the second protective cover are provided with an anti-rust layer.
[0022] Optionally, the vacuum assembly includes a vacuum tube and a vacuum pump;
[0023] The two ends of the vacuum tube are connected to the sealed chamber and the air inlet of the vacuum pump, respectively, and a vacuum valve is provided on it.
[0024] Optionally, a plurality of hooks are provided around the through hole on the outer top surface of the first protective cover.
[0025] The wind turbine yaw collector ring protection device provided in this application, by setting a first protective cover on the mounting base, placing the yaw collector ring inside the first protective cover, and sealing a second protective cover together with the first protective cover to form a sealed chamber for protecting the yaw collector ring, achieves protection of the yaw collector ring during maintenance, troubleshooting, cable unwinding, and other operations when the yaw collector ring needs to be removed, transported, and stored. This prevents the ring surface from being hit by foreign objects. The mounting base has a preset thickness, which ensures that it is at a certain height from the ground of the underground plant where the yaw collector ring is placed, thus playing a role in moisture prevention. At the same time, the air in the sealed chamber is extracted by the vacuum pump component, so that the yaw collector ring is in a vacuum environment in the sealed chamber, preventing the yaw collector ring from rusting. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 A schematic diagram of the structure of a wind turbine yaw collector ring protection device provided in an embodiment of this application;
[0028] Figure 2 A schematic diagram of the structure of a wind turbine yaw collector ring protection device provided in another embodiment of this application;
[0029] Figure 3 This is a schematic diagram of the structure of the second protective cover provided in an embodiment of this application;
[0030] Figure 4 This is a schematic diagram of the internal structure of the first protective cover provided in an embodiment of this application.
[0031] In the diagram: 100, mounting base; 101, first protective cover; 1011, through hole; 1012, hook; 200, yaw slip ring; 300, second protective cover; 301, cover door; 400, sealed chamber; 500, vacuum assembly; 501, vacuum tube; 5011, vacuum valve; 502, vacuum pump; 600, first limiting component; 601, connecting rod; 602, limiting plate; 700, second limiting component. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.
[0033] refer to Figures 1 to 4 This application provides a yaw collector ring protection device for wind turbine generators, comprising:
[0034] The mounting base 100 has a preset thickness and a first protective cover 101 is provided on its upper surface. The top of the first protective cover 101 has a through hole 1011 for placing the yaw collector ring 200 therein. In order to smoothly place the yaw collector ring 200 into the first protective cover 101, the size of the through hole will be larger than the size of the yaw collector ring 200. The yaw collector ring 200 includes, but is not limited to, a collector ring stator, a stator-side junction box, a collector ring rotor, a rotor-side junction box, and related accessories. For details, please refer to the existing structure of the yaw collector ring 200. Therefore, this application will not further describe the structure of the yaw collector ring 200.
[0035] The second protective cover 300 has its bottom end sealed and detachably connected to the top end of the first protective cover 101, forming a sealed chamber 400 to protect the yaw collector ring 200. The top surface of the first protective cover 101 is provided with a retaining plate, while the lower surface of the second protective cover 300 is provided with a groove matching the retaining plate, and a sealing ring is provided within the groove. The retaining plate is embedded in the groove containing the sealing ring, thereby achieving a sealed and detachable connection between the bottom end of the second protective cover 300 and the top end of the first protective cover 101, ensuring the sealing performance of the sealed chamber 400. This is only one implementation of the sealed and detachable connection between the bottom end of the second protective cover 300 and the top end of the first protective cover 101; specific implementations can be made according to actual needs, and this application does not impose specific limitations on it.
[0036] The vacuum assembly 500 is connected to the sealed chamber 400 and is used to extract the air from the sealed chamber 400 so that the yaw collector ring 200 is in a vacuum environment, which can prevent the yaw collector ring 200 placed in the sealed chamber 400 from rusting.
[0037] The wind turbine yaw collector ring protection device provided in this application, by setting a first protective cover 101 on the mounting base 100, placing the yaw collector ring 200 inside the first protective cover 101, and sealing the second protective cover 300 together with the first protective cover 101 to form a sealed chamber 400 to protect the yaw collector ring 200, realizes the protection of the yaw collector ring 200 during maintenance, repair, fault handling, cable unwinding, and other operations of the wind turbine, when it is necessary to remove, transport, and store the yaw collector ring 200. It avoids the ring surface of the yaw collector ring 200 from being hit by foreign objects. The mounting base 100 has a preset thickness so that it is at a certain height from the ground of the underground plant where the yaw collector ring 200 is placed, which can play a role in moisture prevention. At the same time, the vacuum component 500 extracts the air in the sealed chamber 400, so that the yaw collector ring 200 is in a vacuum environment in the sealed chamber, which prevents the yaw collector ring from rusting.
[0038] In some embodiments, the inner bottom surface of the sealed chamber 400 in this application is provided with a buffer layer with anti-wear function; wherein, the buffer layer prevents the bottom of the yaw collector ring 200 from colliding and rubbing with the inner bottom surface of the sealed chamber 400 when the yaw collector ring 200 is placed in the sealed chamber 400, thereby preventing wear on the bottom of the yaw collector ring 200 and protecting the bottom of the yaw collector ring 200.
[0039] Specifically, the buffer layer is made of rubber or silicone, with a thickness of 7mm to 15mm. Rubber possesses unique viscoelastic properties, capable of absorbing and dispersing impact energy, while also exhibiting high durability, good sealing, airtightness, wear resistance, and impact resistance, making it suitable for buffer layers requiring sealing. Silicone, on the other hand, has excellent high-temperature resistance, weather resistance, and good elasticity and deformation capacity, making it widely used in buffer layer materials. Since the yaw slip ring has a certain weight, a buffer layer that is too thin may not provide adequate cushioning, while a buffer layer that is too thick may increase the material requirements and manufacturing costs. Therefore, the thickness of the buffer layer needs to be within a suitable range. In this application, the buffer layer thickness is 7mm to 15mm, which not only effectively cushions the yaw slip ring 200 placed in the sealed chamber 400 but also does not increase the manufacturing cost of the buffer layer. The specific value of the buffer layer thickness can be set according to actual needs; therefore, this application does not impose a specific limitation on it.
[0040] In some embodiments, reference Figure 4In this application, the first protective cover 101 has multiple first limiting members 600 evenly spaced on its inner peripheral wall near its top for limiting the outer peripheral side of the yaw collector ring 200 inside; wherein, the multiple first limiting members 600 achieve the function of fixing the yaw collector ring 200 in the sealed chamber 400, avoiding the situation where the peripheral wall of the yaw collector ring 200 collides with the peripheral wall of the sealed chamber 400 during the transfer of the yaw collector ring 200, causing wear on the peripheral wall of the yaw collector ring 200.
[0041] In addition, the height of the first protective cover 101 is greater than 2 / 3 of the height of the yaw collector ring 200 and less than the height of the yaw collector ring. This makes it easier to adjust the first limiting member 600 set on the inner wall of the first protective cover 101, so that the first limiting member 600 can better and more effectively fix the circumference of the yaw collector ring 200, improving the convenience of operation.
[0042] In some embodiments, reference Figure 3 In this application, the inner top surface of the second protective cover 300 is at a predetermined distance from the top surface of the yaw collector ring 200, and its inner top surface is provided with a second limiting member 700 for limiting the top surface of the yaw collector ring 200. The predetermined distance is to prevent the top surface of the yaw collector ring 200 from colliding with the top surface of the second protective cover 300, thus avoiding wear on the top surface of the yaw collector ring 200. The predetermined distance can be set according to actual needs; therefore, this application does not specifically limit it.
[0043] In some embodiments, reference Figure 3 and Figure 4 In this application, the first limiting member 600 and the second limiting member 700 are limiting members with the same structure. The limiting member includes a connecting rod 601 and a limiting plate 602. Specifically, one end of the connecting rod 601 is provided on the inner peripheral wall of the first protective cover 101 or the inner top surface of the second protective cover 300, and the other end of the connecting rod 601 is provided with a limiting plate 602. The side wall of the limiting plate 602 away from the connecting rod 601 abuts against the outer peripheral wall of the yaw collector ring 200 or the top surface of the yaw collector ring 200 to limit the yaw collector ring 200 in the sealed chamber 400. In addition, the length of the connecting rod 601 is telescopic.
[0044] In the above embodiments, the connecting rod 601 can be an electric telescopic rod or a telescopic cylinder, etc., and can be set according to actual needs. This application does not specifically limit it here. Before placing the yaw collector ring 200 inside the first protective cover 101, the connecting rod 601 on the inner peripheral wall of the first protective cover 101 is retracted so that the yaw collector ring 200 can be placed inside the first protective cover 101. After the yaw collector ring 200 is placed inside the first protective cover 101, the connecting rod 601 is extended until the limiting plate 602 on it abuts against the peripheral wall of the yaw collector ring 200 away from the side wall of the connecting rod 601. Then, the second protective cover 300 is sealed and connected to the first protective cover 101 (the distance between the limiting plate 602 on the connecting rod 601 of the second protective cover 300 and the top surface of the yaw collector ring 200 placed inside the first protective cover 101 should be calculated and set in advance). This achieves the fixation of the peripheral wall and top surface of the yaw collector ring 200 in the sealed chamber 400, ensuring the stability of the yaw collector ring 200 during transportation and avoiding wear. In addition, the telescopic length of the connecting rod 601 enables the fixing of yaw collector rings 200 of different sizes, improving the versatility of the wind turbine yaw collector ring protection device.
[0045] In some embodiments, a protective layer is provided at the end of the limiting plate 602 away from the connecting rod 601 in this application; wherein, the protective layer is provided to prevent wear on the yaw collector ring 200 caused by the side wall of the limiting plate 602 in contact with the yaw collector ring 200 during the process of the limiting plate 602 limiting the yaw collector ring 200 in the sealed chamber 400.
[0046] Specifically, the protective layer is made of an elastic material with a thickness of 0.5mm to 2mm. An elastic material is a type of material that can deform under external force and completely return to its original shape after the force is removed. Examples of elastic materials include rubber and silicone, which can be specifically chosen according to actual needs; this application does not impose specific limitations on them. The thickness of the protective layer affects its protective effect on the yaw collector ring 200. If the protective layer is too thick, the limiting plate 602 may not clamp the yaw collector ring 200 tightly, while if the protective layer is too thin, it may not effectively protect the yaw collector ring 200. Therefore, the protective layer needs to be within a suitable thickness range. In this application, the thickness of the protective layer is between 0.5mm and 2mm. The protective layer not only protects the outer wall of the yaw collector ring 200, preventing wear, but also allows the limiting plate 602 to effectively clamp and limit the yaw collector ring 200. The specific thickness of the protective layer can be set according to actual needs, therefore, this application does not impose specific limitations on it.
[0047] In some embodiments, reference Figure 1 , Figure 2and Figure 3 The second protective cover 300 in this application has a door 301 on its side wall. The size of the door 301 can be set according to actual needs, and this application does not specifically limit it. In addition, the door 301 can be sealed and hinged to the side wall of the second protective cover 300.
[0048] In the above embodiment, the cover door 301 is designed to facilitate opening the cover door 301 to adjust the length of the connecting rod 601 on the inner top surface of the second protective cover 300, so that the lower surface of the limiting plate 602 on the bottom end of the connecting rod 601 can abut against the top surface of the yaw collector ring 200, thereby fixing the top of the yaw collector ring 200 and improving the convenience of operation.
[0049] In some embodiments, the inner walls of both the first protective cover 101 and the second protective cover 300 in this application are provided with anti-rust layers. The purpose of these anti-rust layers is to prevent rust on the yaw collector ring 200 placed within the sealed chamber 400, thus avoiding the possibility of corrosion. Simultaneously, they also protect the inner walls of both the first protective cover 101 and the second protective cover 300, thereby improving the service life of both. Specifically, the anti-rust layer can be an anti-rust coating, ceramic material, polymer film, etc., and the specific material can be selected according to actual needs; however, this application does not specifically limit its application.
[0050] In some embodiments, reference Figure 1 , Figure 3 and Figure 4 The vacuum assembly 500 in this application includes a vacuum tube 501 and a vacuum pump 502. Specifically, both ends of the vacuum tube 501 are connected to the sealed chamber 400 and the air inlet of the vacuum pump 502, respectively, and a vacuum valve 5011 is provided on it. The specifications and models of the vacuum pump 502 and the vacuum valve 5011 can be set according to actual needs, and this application does not impose specific limitations on them.
[0051] In the above embodiment, after the yaw collector ring 200 is placed inside the first protective cover 101 and the second protective cover 300 is sealed to the first protective cover 101, the vacuum pump 502 and the vacuum valve 5011 are turned on to extract the air from the sealed chamber 400, so that the yaw collector ring 200 in the sealed chamber 400 is in a vacuum environment. Then the vacuum valve 5011 is closed, thereby preventing the yaw collector ring 200 in the sealed chamber 400 from corroding.
[0052] In some embodiments, reference Figure 1 and Figure 2In this application, a plurality of hooks 1012 are provided on the outer top surface of the first protective cover 101 surrounding the through hole 1011. The number of hooks 1012 can be set according to actual needs, and this application does not impose a specific limitation on it.
[0053] In the above embodiments, the hook 1012 facilitates the transfer of the wind turbine yaw collector ring protection device and the yaw collector ring 200 placed in the device, thereby improving its transfer efficiency.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A yawing collector ring protection device for a wind power generator, characterized in that The utility model relates to a kind of yaw collector ring protection device, including: Mounting base (100), the mounting base (100) has preset thickness and its upper surface is provided with first protective cover (101), the top of the first protective cover (101) is opened with through hole (1011) for placing yaw collector ring (200) in it; Second protective cover (300), the bottom end of the second protective cover (300) is sealed and detachably connected with the top end of the first protective cover (101), for forming sealed chamber (400) with the first protective cover (101) to protect the yaw collector ring (200); Vacuumizing assembly (500), the vacuumizing assembly (500) is communicated with the sealed chamber (400), for extracting air in the sealed chamber (400) to make the yaw collector ring (200) in vacuum environment.
2. A yawing collector ring protection arrangement for a wind power generator according to claim 1, characterized in that The inner bottom surface of the sealed chamber (400) is provided with a buffer layer having a wear-resistant effect. The buffer layer is made of rubber or silicone, and the thickness is 7mm-15mm.
3. A yawing collector ring protection device for a wind power generator according to claim 1, characterized in that The first protective cover (101) is provided with a plurality of first limiting members (600) for limiting the outer peripheral side of the yaw collector ring (200) in it at equal intervals on the inner peripheral wall near the top thereof. The height of the first protective cover (101) is greater than 2 / 3 of the height of the yaw collector ring (200) and less than the height of the yaw collector ring (200).
4. A yawing collector ring protection arrangement for a wind power generator according to claim 3, characterized in that The inner top surface of the second protective cover (300) is a predetermined distance from the top surface of the yaw collector ring (200), and the inner top surface thereof is provided with a second limiting member (700) for limiting the top surface of the yaw collector ring (200).
5. A yawing collector ring protection arrangement for a wind power generator according to claim 4, characterized in that The first limiting member (600) and the second limiting member (700) are limiting members of the same structure, including a connecting rod (601) and a limiting plate (602). One end of the connecting rod (601) is provided on the inner peripheral wall of the first protective cover (101) or the inner top surface of the second protective cover (300), and the other end of the connecting rod (601) is provided with the limiting plate (602), and the side wall away from the connecting rod (601) of the limiting plate (602) abuts on the outer peripheral wall of the yaw collector ring (200) or the top surface of the yaw collector ring (200) for limiting the yaw collector ring (200) in the sealed chamber (400). The length of the connecting rod (601) is telescopic.
6. A yawing collector ring protection arrangement for a wind power generator according to claim 5, characterized in that The end of the limiting plate (602) away from the connecting rod (601) is provided with a protective layer. The protective layer is an elastic material, and the thickness is 0.5mm-2mm.
7. A yawing collector ring protection arrangement for a wind power generator according to claim 5, characterized in that The side wall of the second protective cover (300) is provided with a cover door (301).
8. A yawing collector ring protection device for a wind power generator according to claim 1, characterized in that The inner wall of the first protective cover (101) and the inner wall of the second protective cover (300) are both provided with a rust-proof layer.
9. A yawing power collector ring protection device for a wind power generator according to claim 1, characterized in that The vacuumizing assembly (500) includes a vacuum tube (501) and a vacuum pump (502). Two ends of the vacuum pipe (501) are communicated with the sealed chamber (400) and the air inlet of the vacuum pump (502) respectively, and a vacuum valve (5011) is arranged on the vacuum pipe (501).
10. A yawing collector ring protection arrangement for a wind power generator according to any of claims 1 to 9, characterized in that, A plurality of hooks (1012) are arranged on the outer top surface of the first protective cover (101) and surround the through hole (1011).