Offshore wind turbine maintenance device

Abstract

The utility model discloses an offshore wind turbine maintenance device which comprises a vertical rod, a bottom plate is installed on the lower portion of the vertical rod, a machine body is installed at the upper end of the vertical rod, three blades are arranged on the side face of the machine body, a first cleaning ring is arranged on the outer surface of the vertical rod, and a second cleaning ring is installed on the side face of the first cleaning ring and corresponds to the blades in position. A plurality of nozzles are mounted on the inner walls of the cleaning ring I and the cleaning ring II, and pull blocks are symmetrically mounted on one side surfaces of the cleaning rings. The spray heads in the cleaning ring I and the cleaning ring II spray water to the surfaces of the vertical rod and the blades, meanwhile, the winding and unwinding wheel rotates to wind up the pull rope, the pull rope drives the cleaning ring I and the cleaning ring II to ascend, the spray heads ascend to comprehensively wash the vertical rod and the blades, convenience and rapidness are achieved, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of offshore wind turbines, and specifically to an offshore wind turbine maintenance device. Background Technology

[0002] Offshore wind turbines are wind energy utilization devices installed on the sea surface for power generation. The basic components of an offshore wind turbine include rotor blades, generator, tower, foundation, and pitch control system. Offshore wind turbine maintenance refers to the activities of regularly inspecting, repairing, maintaining, and managing offshore wind turbine units and their related facilities. The aim is to ensure the safe, stable, and efficient operation of offshore wind turbine units, extend equipment lifespan, reduce operation and maintenance costs and equipment wear, thereby improving the economic benefits of wind farms.

[0003] In the marine environment, wind turbine blades easily accumulate dirt such as salt spray, oil, and electrostatic precipitates. If left uncleaned for a long time, this dirt will form a coating, negatively impacting blade efficiency. Regular maintenance and cleaning of offshore wind turbines are necessary. Existing cleaning methods mostly involve workers using high-pressure water guns to rinse the turbine surface, which is inconvenient, time-consuming, and labor-intensive. Therefore, those skilled in the art have provided an offshore wind turbine maintenance device to address the problems mentioned in the background section. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an offshore wind turbine maintenance device, including a pole, a base plate installed at the lower part of the pole, a machine body installed at the upper end of the pole, three blades arranged on the side of the machine body, a cleaning ring one arranged on the outer surface of the pole, a cleaning ring two installed on the side of the cleaning ring one, and the cleaning ring two corresponding to the position of the blades, a number of nozzles installed on the inner walls of the cleaning ring one and the cleaning ring two, and pull blocks symmetrically installed on the side of the cleaning ring one.

[0005] A dual-axis motor is installed at the top of the machine body. Take-up and release wheels are installed at both ends of the dual-axis motor. The take-up and release wheels are connected to the support frame for rotation. Pull ropes are wound around the outer surface of the take-up and release wheels and the pull ropes are fixedly connected to the pull blocks. Cleaning ring one and cleaning ring two are fixedly connected to the conveying mechanism. The two conveying mechanisms are connected to the liquid storage tank. A water collection hopper is installed at the top of the liquid storage tank. A filter screen is installed on the inner wall of the water collection hopper.

[0006] Preferably, four fixing blocks are installed on one side of the cleaning ring, and a fixing steel rope is slidably connected inside the fixing blocks, with the two ends of the fixing steel rope being fixedly connected to the base plate and the machine body respectively.

[0007] Preferably, the conveying mechanism includes a hollow rotating cylinder and a conveying hose. A rotating shaft is installed at one end of the hollow rotating cylinder, and a fixed pipe is connected to the other end of the hollow rotating cylinder. Both the rotating shaft and the outer surface of the fixed pipe are rotatably connected to stop blocks.

[0008] Preferably, a torsion spring is fitted on the outer surface of both the rotating shaft and the fixed tube. One end of the torsion spring is fixedly connected to the hollow rotating cylinder, and the other end of the torsion spring is fixedly connected to the stop block.

[0009] Preferably, a rotary joint is installed on the side of the fixed pipe, and a pump body is installed on the side of the rotary joint, with the pump body connected to the liquid storage tank.

[0010] Preferably, the outer surface of the hollow rotating cylinder is wrapped with a conveying hose, one end of which is connected to the side of the hollow rotating cylinder, and the other end of which is connected to cleaning ring one or cleaning ring two. A limiting loop block is provided on the outer surface of the conveying hose.

[0011] The technical effects and advantages of this utility model are:

[0012] The nozzles inside the cleaning ring 1 and cleaning ring 2 of this utility model spray water onto the surface of the upright and blades. At the same time, the rotation of the retractor pulls the rope up, and the rope drives the cleaning ring 1 and cleaning ring 2 to rise, so that the nozzles rise to thoroughly wash the upright and blades. It is convenient, quick and saves time and effort. The rainwater is collected by the water collection bucket for secondary use, which saves water resources. Attached Figure Description

[0013] Figure 1 It is a schematic diagram of the structure of this application;

[0014] Figure 2 This is a schematic diagram of the structure of the retractable wheel in this application;

[0015] Figure 3 This is a schematic diagram of the structure of cleaning ring one and cleaning ring two in this application;

[0016] Figure 4 This is a schematic diagram of the conveying mechanism of this application;

[0017] In the picture:

[0018] 1. Upright pole; 2. Machine body; 3. Blades; 4. Base plate; 5. Cleaning ring one; 6. Cleaning ring two; 7. Nozzle; 8. Fixing block; 9. Fixing steel rope;

[0019] 10. Pull block; 11. Dual-shaft motor; 12. Take-up and release wheels; 13. Support frame; 14. Pull rope; 15. Conveying mechanism; 16. Hollow rotating drum; 17. Rotating shaft; 18. Fixing tube; 19. Stop block;

[0020] 20. Torsion spring; 21. Delivery hose; 22. Limiting ring block; 23. Rotary joint; 24. Pump body; 25. Liquid storage tank; 26. Water collection hopper. Detailed Implementation

[0021] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0022] Please see Figures 1 to 4 This embodiment provides a maintenance device for an offshore wind turbine, including a pole 1, a base plate 4 installed at the bottom of the pole 1, a body 2 installed at the top of the pole 1, three blades 3 on the side of the body 2, a cleaning ring 5 on the outer surface of the pole 1, a cleaning ring 6 on the side of the cleaning ring 5 corresponding to the position of the blades 3, several nozzles 7 installed on the inner walls of the cleaning ring 5 and the cleaning ring 6, four fixing blocks 8 installed on the side of the cleaning ring 5, a fixing steel rope 9 slidably connected inside the fixing blocks 8, and the two ends of the fixing steel rope 9 are respectively fixedly connected to the base plate 4 and the body 2, symmetrical pull blocks 10 installed on the side of the cleaning ring 5, a dual-shaft motor 11 installed at the top of the body 2, take-up and release wheels 12 installed at both ends of the dual-shaft motor 11, the take-up and release wheels 12 are rotatably connected to the support frame 13, the outer surface of the take-up and release wheels 12 is wound with a pull rope 14, and the pull rope 14 is fixedly connected to the pull block 10, the cleaning ring 5 and the cleaning ring 6 are both fixedly connected to the conveying mechanism 15, and the two conveying mechanisms 15 are connected to the conveying mechanism 15. 5. A common connection is made to the liquid storage tank 25. The conveying mechanism 15 includes a hollow rotating cylinder 16 and a conveying hose 21. A rotating shaft 17 is installed at one end of the hollow rotating cylinder 16, and the other end of the hollow rotating cylinder 16 is connected to a fixed pipe 18. Both the rotating shaft 17 and the fixed pipe 18 are rotatably connected to a stop block 19. Both the rotating shaft 17 and the fixed pipe 18 are fitted with a torsion spring 20. One end of the torsion spring 20 is fixedly connected to the hollow rotating cylinder 16, and the other end of the torsion spring 20 is fixedly connected to the stop block 19. A rotary joint 23 is installed on the side of the fixed pipe 18, and a pump body 24 is installed on the side of the rotary joint 23. The pump body 24 is connected to the liquid storage tank 25. The conveying hose 21 is wound around the outer surface of the hollow rotating cylinder 16. One end of the conveying hose 21 is connected to the side of the hollow rotating cylinder 16, and the other end of the conveying hose 21 is connected to a cleaning ring 5 or a cleaning ring 6. A limiting loop block 22 is set on the outer surface of the conveying hose 21. A water collection hopper 26 is installed at the upper end of the liquid storage tank 25, and a filter screen is installed on the inner wall of the water collection hopper 26.

[0023] The working principle of this utility model is as follows: When it is necessary to maintain and clean the upright 1 and blade 3, one blade 3 is made perpendicular to the base plate 4. The pump body 24 conveys water from the storage tank 25 through the rotary joint 23, fixed pipe 18, hollow rotating cylinder 16 and conveying hose 21 to the inside of the cleaning ring 1 5 and cleaning ring 2 6. Then, the water is sprayed onto the upright 1 and blade 3 through the nozzle 7. At the same time, the dual-shaft motor 11 drives the take-up wheel 12 to rotate and wind up the pull rope 14. The pull rope 14 and pull block 10 drive the cleaning ring 1 5 and cleaning ring 2 6 to rise. At the same time, the conveying hose 21 pulls the hollow rotating cylinder 16 to rotate, so that the conveying hose 21 is extended, thereby driving the nozzle 7 to rise and thoroughly wash the upright 1 and blade 3. The cleaning ring 1 5 and cleaning ring 2 6 are raised stably by the four fixed steel ropes 9. After one blade 3 is washed, the other blade 3 is made perpendicular to the base plate 4 and washed again in the same way. It is convenient and quick. Rainwater is collected by the water collection bucket 26 for secondary use.

[0024] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A maintenance device for offshore wind turbines, comprising a support pole (1), characterized in that, The bottom plate (4) is installed at the lower part of the pole (1), the body (2) is installed at the upper end of the pole (1), three blades (3) are set on the side of the body (2), a cleaning ring (5) is set on the outer surface of the pole (1), a cleaning ring (6) is installed on the side of the cleaning ring (5), and the cleaning ring (6) corresponds to the position of the blade (3). Several nozzles (7) are installed on the inner wall of the cleaning ring (5) and the cleaning ring (6), and pull blocks (10) are symmetrically installed on the side of the cleaning ring (5). A dual-axis motor (11) is installed on the upper part of the body (2). The two ends of the dual-axis motor (11) are equipped with take-up and release wheels (12). The take-up and release wheels (12) are rotatably connected to the support frame (13). The outer surface of the take-up and release wheels (12) is wrapped with a pull rope (14), and the pull rope (14) is fixedly connected to the pull block (10). The first cleaning ring (5) and the second cleaning ring (6) are both fixedly connected to the conveying mechanism (15). The two conveying mechanisms (15) are connected to the liquid storage tank (25). The upper part of the liquid storage tank (25) is equipped with a water collection hopper (26), and a filter screen is installed on the inner wall of the water collection hopper (26).

2. The offshore wind turbine maintenance device according to claim 1, characterized in that, Four fixing blocks (8) are installed on the side of the cleaning ring (5). The fixing blocks (8) are slidably connected to the fixing steel rope (9), and the two ends of the fixing steel rope (9) are respectively fixedly connected to the base plate (4) and the machine body (2).

3. The offshore wind turbine maintenance device according to claim 1, characterized in that, The conveying mechanism (15) includes a hollow rotating cylinder (16) and a conveying hose (21). A rotating shaft (17) is installed at one end of the hollow rotating cylinder (16), and the other end of the hollow rotating cylinder (16) is connected to a fixed pipe (18). Both the rotating shaft (17) and the fixed pipe (18) are rotatably connected to a stop block (19).

4. The offshore wind turbine maintenance device according to claim 3, characterized in that, Torque springs (20) are fitted on the outer surfaces of the rotating shaft (17) and the fixed tube (18). One end of the torsion spring (20) is fixedly connected to the hollow rotating cylinder (16), and the other end of the torsion spring (20) is fixedly connected to the stop block (19).

5. The offshore wind turbine maintenance device according to claim 3, characterized in that, A rotary joint (23) is installed on the side of the fixed pipe (18), and a pump body (24) is installed on the side of the rotary joint (23), and the pump body (24) is connected to the liquid storage tank (25).

6. The offshore wind turbine maintenance device according to claim 3, characterized in that, The outer surface of the hollow rotating cylinder (16) is wrapped with a conveying hose (21). One end of the conveying hose (21) is connected to the side of the hollow rotating cylinder (16), and the other end of the conveying hose (21) is connected to the cleaning ring one (5) or the cleaning ring two (6). A limiting ring block (22) is provided on the outer surface of the conveying hose (21).

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