Cleaning device for yaw system of wind driven generator

Abstract

The utility model relates to the technical field of brake disc cleaning, in particular to a cleaning device for a yaw system of a wind driven generator, which comprises a supporting mechanism, a cleaning mechanism and a control mechanism. The two moving parts are respectively mounted on the supporting mechanism, and two shaft holes are respectively formed in each moving part; the two ends of the two transmission shafts are rotationally mounted in the shaft holes in the two moving parts respectively; connecting shafts are rotationally mounted in two through holes formed in the two mounting parts respectively, the two connecting shafts on the mounting parts are connected with the two transmission shafts in a matched mode respectively, two mounting mechanisms are mounted at the adjacent ends of the two mounting parts respectively, the mounting mechanisms and the connecting shafts are mounted in a matched mode, and cleaning brushes are coaxially mounted on the mounting mechanisms; the adjusting mechanism is mounted on the two moving parts, and the adjusting mechanism is used for adjusting the distance between the two mounting parts; the driving mechanism is mounted on the moving part, and the driving mechanism is used for providing rotating force for the two transmission shafts; the adaptability is high, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of brake disc cleaning, and in particular to a cleaning device for a wind turbine yaw system. Background Technology

[0002] In wind power generation systems, the yaw system is a key component for enabling wind turbines to operate in the wind. Its main function is to adjust the nacelle orientation to ensure the rotor always faces the wind direction, thereby improving power generation efficiency. Among them, the yaw brake disc, as one of the core components of the yaw system, undertakes several important tasks during turbine operation, including locking the nacelle, providing damping torque, and unwinding the mooring cables.

[0003] Depending on the actual operating conditions, the yaw brake applies different pressures under different operating states: when the unit is facing the wind or in maintenance mode, a pressure of 150-160 bar is maintained to prevent the nacelle from rotating; during the unit's yaw process, the brake maintains a pressure of 20-24 bar to provide appropriate damping torque; and during unmooring operations, the brake pressure is 0 bar to reduce wear on the friction pads. However, during long-term friction braking, the edge of the brake disc will generate a large amount of metal powder and dust due to the interaction between it and the friction pads. These foreign objects easily adhere to the surface of the brake disc. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a cleaning device for the yaw system of a wind turbine.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a cleaning device for a wind turbine yaw system, comprising:

[0007] The support structure is independently and fixedly installed.

[0008] Two movable parts are respectively mounted on the support mechanism, and each movable part is provided with two shaft holes;

[0009] Two drive shafts are rotatably mounted at both ends to the shaft holes on two moving parts;

[0010] Two mounting pieces are provided, each with a connecting shaft rotatably mounted in one of the two through holes. The two connecting shafts on the mounting pieces are respectively connected to two drive shafts. The connecting shafts rotate with the drive shafts and slide along the length of the drive shafts. Two mounting mechanisms are respectively installed at the adjacent ends of the two mounting pieces, and the mounting mechanisms are installed in conjunction with the connecting shafts. A cleaning brush is coaxially mounted on the mounting mechanism.

[0011] An adjustment mechanism, mounted on two movable parts, is used to adjust the distance between the two mounting parts.

[0012] The drive mechanism, mounted on the moving part, is used to provide rotational power to the two drive shafts.

[0013] Furthermore, the installation mechanism includes:

[0014] A fastener is installed on the mounting component. A support shaft is rotatably installed in the inner hole of the fastener. A driven bevel gear is coaxially installed on one end of the support shaft, and an assembly is coaxially installed on the other end. The cleaning brush is fixedly connected to the support shaft through the assembly.

[0015] The driving bevel gear is coaxially mounted on the connecting shaft, and the driving bevel gear meshes with the driven bevel gear.

[0016] Furthermore, an isolating component is installed on the fixing component, and both the driving bevel gear and the driven bevel gear are located inside the isolating component. The connecting shaft is rotatably installed with the slot of the isolating component.

[0017] Furthermore, the drive mechanism includes:

[0018] A drive motor is mounted on a moving part, and the output end of the drive motor is coaxially connected to a transmission shaft.

[0019] Two pulleys are coaxially mounted on two drive shafts, and drive belts are installed on the two pulleys.

[0020] Furthermore, the regulatory body includes:

[0021] A threaded rod is rotatably mounted on two moving parts, with the threads at both ends of the threaded rod having opposite directions. The threads at both ends of the threaded rod are respectively engaged with the threaded through holes of the two mounting parts.

[0022] The adjusting wheel is coaxially mounted on one end of the threaded rod.

[0023] The nut is coaxially mounted on the threaded rod and is used to lock the connection position between the threaded rod and the mounting part.

[0024] Furthermore, the supporting institutions include:

[0025] The base has guide posts installed at two axially symmetrical corners, and threaded posts rotatably installed at the other two axially symmetrical corners. The threaded posts and guide posts on the same side of the base are respectively installed in conjunction with the threaded tubes and hollow shafts at both ends of the moving parts on the same side.

[0026] Two bolts are installed in the threaded grooves of the two moving hollow shafts respectively. The bolts are used to lock the connection position between the hollow shaft and the guide post.

[0027] Two drive caps are coaxially mounted on two threaded posts.

[0028] Furthermore, adjustable feet are provided at the bottom of the base.

[0029] Furthermore, an auxiliary frame is mounted on the mounting component, and both cleaning brushes on the mounting component are rotatably connected to the auxiliary frame.

[0030] In the above technical solution, the cleaning device for the yaw system of a wind turbine provided by this utility model has the following beneficial effects:

[0031] The adjustment mechanism is mounted on two moving parts, allowing precise adjustment of the distance between them. This enables the cleaning brush on the mounting mechanism to quickly adjust its working distance according to the actual size of the yaw system or the needs of different cleaning areas, adapting to various specifications of wind turbine yaw systems and improving the device's versatility. The drive mechanism, mounted on the moving parts, provides stable rotational power to the two drive shafts. Through the cooperation of the drive shafts and the connecting shaft, the cleaning brush is driven to rotate at high speed, achieving efficient cleaning of the yaw system surface. The connecting shaft can both rotate with the drive shaft and slide along its length, ensuring continuous power transmission even when the mounting parts are adjusting the distance, preventing cleaning interruptions due to distance adjustment. This design, with its adjustable distance adaptability and stable power drive system, effectively improves the efficiency, accuracy, and applicability of yaw system cleaning, meeting cleaning needs under different working conditions and reducing the difficulty and cost of cleaning operations. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.

[0033] Figure 1 This is a schematic diagram of the structure of this utility model;

[0034] Figure 2 This is an axonometric view of the structure of this utility model;

[0035] Figure 3 This is a schematic diagram of the structural installation mechanism of this utility model;

[0036] Figure 4 This is a top view of the structure of this utility model;

[0037] The following are labels in the attached diagram: 1. Support mechanism; 11. Base; 12. Guide column; 13. Threaded column; 14. Bolt; 15. Drive cap; 16. Adjusting foot; 2. Moving part; 3. Drive shaft; 4. Mounting part; 5. Connecting shaft; 6. Mounting mechanism; 61. Fixing part; 62. Support shaft; 63. Driven bevel gear; 64. Assembly part; 65. Driven bevel gear; 66. Isolating part; 7. Cleaning brush; 8. Adjusting mechanism; 81. Threaded rod; 82. Adjusting wheel; 83. Nut; 9. Drive mechanism; 91. Drive motor; 92. Pulley; 93. Transmission belt; 10. Auxiliary frame. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0039] See Figure 1-4 As shown;

[0040] A cleaning device for a wind turbine yaw system according to an embodiment of this utility model includes:

[0041] Support mechanism 1 is the basic fixed platform of the entire cleaning device, and it is set up independently;

[0042] Two movable parts 2 are respectively installed on the support mechanism 1, and each movable part 2 is provided with two shaft holes;

[0043] Two drive shafts 3 are rotatably mounted at both ends to the shaft holes on two moving parts 2;

[0044] Two mounting pieces 4 have two through holes on them, each with a connecting shaft 5 rotatably mounted inside. The two connecting shafts 5 on the mounting pieces 4 are respectively connected to two transmission shafts 3. The connecting shafts 5 rotate with the transmission shafts 3 and slide along the length of the transmission shafts 3. Two mounting mechanisms 6 are respectively installed at the adjacent ends of the two mounting pieces 4, and the mounting mechanisms 6 are installed in conjunction with the connecting shafts 5. A cleaning brush 7 is coaxially mounted on the mounting mechanism 6.

[0045] The adjustment mechanism 8 is mounted on two movable parts 2, and the adjustment mechanism 8 is used to adjust the distance between the two mounting parts 4.

[0046] Drive mechanism 9, mounted on movable part 2, is used to provide rotational power to two drive shafts 3;

[0047] By adopting the above technical solution, the adjustment mechanism 8 is installed on two moving parts 2, which can precisely adjust the distance between the two mounting parts 4. This allows the cleaning brush 7 on the mounting mechanism 6 to quickly adjust its working distance according to the actual size of the yaw system or the needs of different cleaning parts, adapting to various specifications of wind turbine yaw systems and improving the versatility of the device. The drive mechanism 9 is installed on the moving parts 2, providing stable rotational power to the two drive shafts 3. Through the cooperation of the drive shafts 3 and the connecting shaft 5, the cleaning brush 7 is driven to rotate at high speed, achieving efficient cleaning of the yaw system surface. The connecting shaft 5 can both rotate with the drive shaft 3 and slide along the length of the drive shaft 3, so that the mounting parts 4 can maintain the continuity of power transmission when adjusting the distance, avoiding the interruption of cleaning operations due to distance adjustment. This design, through adjustable distance adaptability and a stable power drive system, effectively improves the efficiency, accuracy, and applicability of yaw system cleaning, meets the cleaning needs under different working conditions, and reduces the difficulty and cost of cleaning operations.

[0048] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the mounting mechanism 6 includes:

[0049] The fixing part 61 is installed on the mounting part 4. The support shaft 62 is rotatably installed in the inner hole of the fixing part 61. One end of the support shaft 62 is coaxially mounted with the driven bevel gear 63, and the other end is coaxially mounted with the assembly part 64. The cleaning brush 7 is fixedly connected to the support shaft 62 through the assembly part 64.

[0050] The driving bevel gear 65 is coaxially mounted on the connecting shaft 5, and the driving bevel gear 65 is meshed with the driven bevel gear 63.

[0051] An isolator 66 is mounted on the fixing member 61. The driving bevel gear 65 and the driven bevel gear 63 are both located inside the isolator 66. The connecting shaft 5 is rotatably mounted with the slot of the isolator 66.

[0052] In this embodiment, the fixing member 61 provides a stable mounting base for the support shaft 62, ensuring the stability of the cleaning brush 7 during operation. The driving bevel gear 65 is coaxially mounted on the connecting shaft 5 and meshes with the driven bevel gear 63 on the support shaft 62, efficiently and accurately transmitting the power from the connecting shaft 5 to the support shaft 62, driving the cleaning brush 7 to rotate at high speed. This ensures that the cleaning brush 7 maintains a stable speed and cleaning force when cleaning the yaw system. The isolating member 66 encloses the driving bevel gear 65 and the driven bevel gear 63, effectively preventing dust, debris, and other impurities generated during the cleaning process of the wind turbine yaw system from entering the gear transmission part. This avoids impurities causing gear wear and jamming, extends the service life of the transmission components, and reduces interference from external factors on the transmission system, ensuring the continuity of power transmission.

[0053] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the drive mechanism 9 includes:

[0054] A drive motor 91 is mounted on a movable part 2, and the output end of the drive motor 91 is coaxially connected to a transmission shaft 3.

[0055] Two pulleys 92 are coaxially mounted on two drive shafts 3, and drive belts 93 are mounted on the two pulleys 92;

[0056] In this embodiment, the drive motor 91 is mounted on the moving part 2, and its output end is coaxially connected to a transmission shaft 3 to provide a power source for the cleaning device. Through the transmission combination of pulley 92 and transmission belt 93, the power is efficiently transmitted to another transmission shaft 3, ensuring that the two transmission shafts 3 rotate synchronously, driving the cleaning brush 7 to rotate synchronously at high speed, and ensuring uniform cleaning of the wind turbine yaw system.

[0057] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the adjustment mechanism 8 includes:

[0058] The threaded rod 81 is rotatably mounted on two moving parts 2, and the threads at both ends of the threaded rod 81 are opposite. The threads at both ends of the threaded rod 81 are respectively engaged with the threaded through holes of the two mounting parts 4.

[0059] The adjusting wheel 82 is coaxially mounted on one end of the threaded rod 81;

[0060] Nut 83 is coaxially mounted on threaded rod 81. Nut 83 is used to lock the connection position between threaded rod 81 and mounting part 4.

[0061] In this embodiment, the threaded rod 81 is rotatably mounted on two moving parts 2. The opposite screw directions at both ends of the threaded rod 81 allow the two mounting parts 4 to move synchronously in opposite directions when the threaded rod 81 is rotated. This enables quick and precise adjustment of the spacing to accommodate yaw systems of wind turbines of different sizes, ensuring that the cleaning brush 7 is in the optimal cleaning position. The adjusting wheel 82, coaxially mounted on one end of the threaded rod 81, provides a convenient point of force application for the operator. The threaded rod 81 can be easily driven to rotate by rotating the adjusting wheel 82. Compared with directly operating the threaded rod 81, this significantly reduces the difficulty of operation and improves the adjustment efficiency. The nut 83 is coaxially mounted on the threaded rod 81. After the mounting parts 4 are adjusted to the appropriate spacing, the connection position between the threaded rod 81 and the mounting parts 4 can be locked to prevent the mounting parts 4 from shifting due to vibration or other factors during the operation of the cleaning device, thus ensuring the stability and reliability of the cleaning operation.

[0062] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the support mechanism 1 includes:

[0063] The base 11 has guide posts 12 installed at two axially symmetrical corners, and threaded posts 13 are rotatably installed at the other two axially symmetrical corners. The threaded posts 13 and guide posts 12 on the same side of the base 11 are respectively installed in conjunction with the threaded tubes and hollow shafts at both ends of the movable part 2 on the same side.

[0064] Two bolts 14 are respectively installed in the threaded grooves of the hollow shafts of the two moving parts 2. The bolts 14 are used to lock the connection position between the hollow shaft and the guide post 12.

[0065] Two drive caps 15 are coaxially mounted on two threaded posts 13, respectively;

[0066] The base 11 is equipped with an adjustable foot 16 at its bottom;

[0067] In this embodiment, the base 11 serves as a basic platform. Guide pillars 12 and threaded pillars 13, symmetrically arranged at its four corners, respectively cooperate with the hollow shaft and threaded tube on the moving part 2, forming a stable guiding and transmission structure. This allows the moving part 2 to slide precisely along the guide pillars 12. Simultaneously, the rotation of the threaded pillars 13 enables fine-tuning of the moving part 2's position, thereby adjusting the working height of the cleaning brush 7. Bolts 14 are installed in the threaded groove of the hollow shaft of the moving part 2, locking the connection position between the hollow shaft and the guide pillars 12 to prevent displacement of the moving part 2 during operation and ensuring the stability of the cleaning brush 7's working position. A drive cap 15 is coaxially mounted on the threaded pillar 13, providing a convenient point of force application for the operator. Rotating the drive cap 15 easily adjusts the rotation angle of the threaded pillar 13, thereby precisely controlling the moving distance of the moving part 2 and improving the ease of adjustment. The adjustable feet 16 at the bottom of the base 11 can be height-adjusted according to the flatness of different installation surfaces, ensuring the support mechanism 1 is horizontal and enhancing the overall stability of the cleaning device.

[0068] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, an auxiliary frame 10 is mounted on the mounting component 4, and the two cleaning brushes 7 on the mounting component 4 are rotatably connected to the auxiliary frame 10.

[0069] In this embodiment, the auxiliary frame 10 provides an additional support point for the cleaning brush 7, changing the force distribution mode of the cleaning brush 7 which relies solely on the support shaft 62. This disperses the resistance and vibration experienced by the cleaning brush 7 when it rotates at high speed to clean the yaw system, reducing the shaking caused by uneven force on the cleaning brush 7 and making its operation more stable.

[0070] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A cleaning device for a wind turbine yaw system, characterized in that, include: Support mechanism (1), independently and fixedly installed; Two movable parts (2) are respectively installed on the support mechanism (1), and each movable part (2) is provided with two shaft holes; Two drive shafts (3) are rotatably mounted at both ends to the shaft holes on the two moving parts (2); Two mounting pieces (4) are provided with two through holes on each of which a connecting shaft (5) is rotatably installed. The two connecting shafts (5) on the mounting pieces (4) are respectively connected to the two transmission shafts (3). The connecting shafts (5) rotate with the transmission shafts (3). The connecting shafts (5) are slidably installed along the length of the transmission shafts (3). Two mounting mechanisms (6) are respectively installed at the adjacent ends of the two mounting pieces (4). The mounting mechanisms (6) are connected to the connecting shafts (5). A cleaning brush (7) is coaxially installed on the mounting mechanism (6). An adjustment mechanism (8) is installed on the two movable parts (2), and the adjustment mechanism (8) is used to adjust the distance between the two installed parts (4); A drive mechanism (9) is mounted on the moving part (2) and is used to provide rotational power to the two drive shafts (3).

2. The cleaning device for the yaw system of a wind turbine as described in claim 1, characterized in that, The installation mechanism (6) includes: A fixing member (61) is installed on the mounting member (4). A support shaft (62) is rotatably installed in the inner hole of the fixing member (61). A driven bevel gear (63) is coaxially installed at one end of the support shaft (62), and an assembly (64) is coaxially installed at the other end. The cleaning brush (7) is fixedly connected to the support shaft (62) through the assembly (64). The driving bevel gear (65) is coaxially mounted on the connecting shaft (5), and the driving bevel gear (65) meshes with the driven bevel gear (63).

3. The cleaning device for the yaw system of a wind turbine as described in claim 2, characterized in that, An isolator (66) is installed on the fixing member (61). The driving bevel gear (65) and the driven bevel gear (63) are both located inside the isolator (66). The connecting shaft (5) is rotatably installed with the slot of the isolator (66).

4. The cleaning device for the yaw system of a wind turbine as described in claim 1, characterized in that, The drive mechanism (9) includes: A drive motor (91) is mounted on one of the moving parts (2), and the output end of the drive motor (91) is coaxially connected to one of the transmission shafts (3); Two pulleys (92) are coaxially mounted on the two drive shafts (3), and drive belts (93) are mounted on the two pulleys (92).

5. The cleaning device for the yaw system of a wind turbine as described in claim 1, characterized in that, The adjustment mechanism (8) includes: A threaded rod (81) is rotatably mounted on two of the moving parts (2), and the threads at both ends of the threaded rod (81) are opposite. The threads at both ends of the threaded rod (81) are respectively engaged with the threaded through holes of the two mounting parts (4). An adjusting wheel (82) is coaxially mounted on one end of the threaded rod (81); Nut (83) is coaxially mounted on the threaded rod (81), and the nut (83) is used to lock the connection position between the threaded rod (81) and the mounting part (4).

6. The cleaning device for the yaw system of a wind turbine as described in claim 1, characterized in that, The support mechanism (1) includes: The base (11) has guide posts (12) installed at two axially symmetrical corners, and threaded posts (13) rotatably installed at the other two axially symmetrical corners. The threaded posts (13) and guide posts (12) on the same side of the base (11) are respectively fitted with threaded tubes and hollow shafts at both ends on the moving part (2) on the same side. Two bolts (14) are respectively installed in the threaded grooves of the hollow shafts of the two moving parts (2), and the bolts (14) are used to lock the connection position between the hollow shaft and the guide post (12); Two drive caps (15) are coaxially mounted on the two threaded posts (13).

7. The cleaning device for the yaw system of a wind turbine as described in claim 6, characterized in that, The base (11) is provided with an adjustable foot (16) at its bottom.

8. The cleaning device for the yaw system of a wind turbine as described in claim 1, characterized in that, An auxiliary frame (10) is mounted on the mounting component (4), and the two cleaning brushes (7) on the mounting component (4) are rotatably connected to the auxiliary frame (10).

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