Offshore wind power operation and maintenance lifting embarkation device and using method thereof

Abstract

The invention discloses an offshore wind power operation and maintenance lifting and embarkation device, and relates to the technical field of wind power operation and maintenance. The device comprises fan stand columns and a lift car, sliding guide rails are arranged on the surfaces of the fan stand columns, guide wheels are arranged at the four corners of the side, close to the fan stand columns, of the lift car, the lift car is slidably connected with the sliding guide rails through the guide wheels, and a cross beam is fixedly connected to the side, close to the fan stand columns, of the bottom of the lift car; the top of the fan stand column is fixedly connected with a first winding roller and a second winding roller, a first steel cable is wound on the surface of the first winding roller, the top of one side of the fan stand column is fixedly connected with a first fixing base, and the position, close to the top, of the surface of the fan stand column is fixedly connected with a first detection device. According to the offshore wind power operation and maintenance lifting embarkation device and the use method thereof, the potential safety hazard existing in the design of a single steel cable is solved, the steel cable can be monitored during operation, and the operation safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power operation and maintenance, and in particular to an offshore wind power operation and maintenance lifting and docking device and a use method thereof. Background Art

[0002] At present, the operation and maintenance of offshore wind farms mainly rely on various lifting and boarding devices to achieve rapid and safe transfer of personnel and equipment. In the field of offshore wind power operation and maintenance, the existing lifting and boarding devices mainly use single steel cables or simple multi-rope systems to achieve the up and down operations of operation and maintenance personnel and equipment transportation. Although these devices meet the basic operation and maintenance needs to a certain extent, the single steel cable design has significant safety hazards in the long-term harsh offshore environment (such as strong winds, high humidity, salt spray corrosion, etc.). Once a single steel cable breaks due to fatigue, corrosion or accidental damage, it will directly cause the operation and maintenance platform to fall out of control, seriously threatening the lives of the operators; due to the harsh environment, the single steel cable needs to be frequently inspected and replaced, which increases the operation and maintenance cost and time cost; in addition, the existing system for monitoring the status of the steel cable mostly relies on manual regular inspections, and cannot promptly detect and warn of steel cable wear or surface damage, which increases the risk of operation. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the prior art, the present invention provides an offshore wind power operation and maintenance lifting and landing device and a method of using the device, which solves the safety hazards existing in the single steel cable design, can monitor the steel cable during operation, and improves the safety of operations.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an offshore wind power operation and maintenance lifting and landing device, comprising a wind turbine column and a car, the surface of the wind turbine column is provided with a sliding guide rail, the car is provided with guide wheels at the four corners of the side close to the wind turbine column, the car is slidably connected to the sliding guide rail through the guide wheels, the bottom of the car and the side close to the wind turbine column is fixedly connected with a crossbeam, the two ends of the crossbeam are fixedly connected with fixed pulleys, the top of the wind turbine column is fixedly connected with a first winding roller and a second winding roller, the surface of the first winding roller is wound with a first steel cable, the top of one side of the wind turbine column is fixedly connected with a first fixed seat, one end of the first steel cable is sequentially bypassed by two fixed pulleys at both ends of the crossbeam and is fixedly connected to the first fixed seat, the surface of the wind turbine column and near the top position is fixedly connected with a first detection device, the first detection device is sleeved on the surface of the first steel cable, the top of the wind turbine column is provided with a control box, the control box is provided with a comparison module, a control module and an alarm module, and the signal output end of the first detection device is electrically connected to the comparison module;

[0007] The first detection device comprises a rectangular tube, the inner wall of which is provided with a first measuring sensor and a second measuring sensor for measuring the diameter of the first steel cable, the first measuring sensor is provided below the second measuring sensor, the first measuring sensor detects the diameter of the first steel cable in the width direction of the car, the second measuring sensor detects the diameter of the first steel cable in the length direction of the car, the first measuring sensor and the second measuring sensor transmit the detection results to a comparison module, the comparison module compares the detection value with the original diameter value of the first steel cable, if the detection value is inconsistent with the diameter value, the control module issues an alarm through the alarm module, and the top and bottom of the rectangular tube are provided with perforations;

[0008] A traction fixed pulley is fixedly connected to the center of the top of the car close to the fan column, a second steel cable is wound on the surface of the second winding roller, a second fixed seat is fixedly connected to the top of one side of the fan column and located at a corresponding position of the second winding roller, one end of the second steel cable passes around the surface of the traction fixed pulley and is fixedly connected to the second fixed seat, and a second detection device for detecting the diameter of the second steel cable is provided on the surface of the fan column.

[0009] Preferably, a reducer and a drive motor are fixedly connected to the top of the fan column, the reducer is arranged between the first winding roller and the second winding roller, the reducer is a dual-output shaft reducer, the two output shaft ends of the reducer are respectively fixedly connected to one end of the first winding roller and the second winding roller, and the output shaft end of the drive motor is fixedly connected to the input shaft end of the reducer.

[0010] Preferably, a lifting button is provided in the car, the lifting button is electrically connected to the control module through a control line, and the control end of the control module is electrically connected to the driving motor.

[0011] Preferably, a drag chain is provided on the surface of the fan column, one end of the drag chain is fixed to the top of the car, and the control line is arranged inside the drag chain.

[0012] Preferably, a first directional wheel and a second directional wheel are sequentially arranged on the surface of the fan column near the top, the first directional wheel is arranged on one side of the first winding roller for supporting the first steel cable, and the second directional wheel is arranged on one side of the second winding roller for supporting the second steel cable.

[0013] Preferably, the sliding guide rail includes a fixed base plate, an L-shaped fixing strip is fixedly connected to the surface of the fixed base plate, a pair of L-shaped fixing strips are symmetrically arranged, a clamping seat is fixedly connected to one side of the fixed base plate, a steel cable protective cover is arranged on one side of the fixed base plate, a clamping block is arranged at the bottom of the steel cable protective cover, the clamping block is slidably connected to the clamping seat, a fixing cylinder is fixedly connected to the surface of the L-shaped fixing strip close to the steel cable protective cover, an insert rod is fixedly connected to one side of the steel cable protective cover, and the insert rod is clamped with the fixed cylinder.

[0014] Preferably, the guide wheel includes a connecting seat, one side of the connecting seat is fixedly connected to a connecting shaft, both ends of the connecting shaft are rotatably connected to rollers, the diameter of the rollers is smaller than the inner height of the L-shaped fixing strip, and the distance between the two rollers is smaller than the distance between the two L-shaped fixing strips.

[0015] Preferably, a first door is provided on one side of the car, and a second door is provided on the other side of the car.

[0016] A method for using an offshore wind power operation and maintenance lifting and landing device, applicable to the above-mentioned offshore wind power operation and maintenance lifting and landing device, comprises the following steps:

[0017] S. Open the first car door, enter the car and close the door;

[0018] S. Control the driving motor through the lifting button to make the car rise;

[0019] S. After reaching the specified height, the drive motor stops working, the second box door is opened, and the inside of the fan column is entered to complete the landing.

[0020] Preferably, in step S, the measuring sensors in the first detection device and the second detection device transmit the detection results to the comparison module, and the comparison module compares the detection value with the original diameter value of the corresponding steel cable. If the detection value is inconsistent with the diameter value, the control module issues an alarm through the alarm module.

[0021] (III) Beneficial effects

[0022] The present invention provides an offshore wind power operation and maintenance lifting and landing device and a method for using the device.

[0023] Beneficial effects:

[0024] (1) This offshore wind power operation and maintenance lifting and landing device uses the first steel cable and the second steel cable to lift the car, ensuring that in the event of an accidental failure of a single steel cable, the other steel cable can still maintain system stability and avoid falling accidents; at the same time, it is convenient to replace one of the steel cables, thereby improving the efficiency of replacing the steel cables; the first steel cable and the second steel cable maintain synchronous movement through the same type of winding rollers driven by the same reducer, ensuring the smoothness of the lifting process.

[0025] (2) This offshore wind power operation and maintenance lifting and landing device monitors the diameters of the first steel cable and the second steel cable respectively through the sensors inside the first detection device and the second detection device. The diameter monitoring can reflect the degree of wear of the steel cable. When the wear reaches a preset threshold, an early warning is issued to promptly remind maintenance personnel to replace or repair the steel cable, thereby effectively preventing safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the connection between the car and the first steel cable of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the car of the present invention;

[0029] Figure 4 The structure of the sliding guide rail of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 5 The structure of the sliding guide rail of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 6 It is a structural schematic diagram of the guide wheel of the present invention;

[0032] Figure 7 is a schematic diagram of the internal structure of the first detection device of the present invention;

[0033] Figure 8 It is a cross-sectional view of the first detection device of the present invention.

[0034] In the figure: 1-fan column, 2-car, 201-first box door, 202-second box door, 3-sliding guide rail, 31-fixed bottom plate, 32-L-shaped fixing strip, 33-card seat, 34-cable protective cover, 35-card block, 36-fixed cylinder, 37-insertion rod, 4-guide wheel, 41-connecting seat, 42-connecting shaft, 43-roller, 5-beam, 6-fixed pulley, 7-first winding roller, 8-first steel cable, 9-first fixed seat, 10-first detection device, 101-rectangular cylinder, 102-first measuring sensor, 103-second measuring sensor, 104-perforation, 11-control box, 12-traction fixed pulley, 13-second winding roller, 14-second steel cable, 15-second fixed seat, 16-second detection device, 17-drive motor, 18-drag chain, 19-first directional wheel, 20-second directional wheel. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-8 The present invention provides a technical solution: an offshore wind power operation and maintenance lifting and landing device, comprising a wind turbine column 1 and a car 2, the surface of the wind turbine column 1 is provided with a sliding guide rail 3, the sliding guide rail 3 is arranged in pairs and fixed along the length direction of the wind turbine column 1, the length of the sliding guide rail 3 is 3-5 meters, and the modular arrangement is convenient for transportation and installation, the specific sliding guide rail 3 includes a fixed bottom plate 31, the surface of the fixed bottom plate 31 is provided with a mounting hole, and is fixed to the surface of the wind turbine column 1 through the mounting hole, the surface of the fixed bottom plate 31 is fixedly connected with an L-shaped fixing strip 32, and the L-shaped fixing strip 32 is provided with a pair and The two components are symmetrically arranged and relatively arranged to form a concave structure. A clamping seat 33 is fixedly connected to one side of the fixed base plate 31. A steel cable protective cover 34 is arranged on one side of the fixed base plate 31. A clamping block 35 is arranged at the bottom of the steel cable protective cover 34. The clamping block 35 is slidably connected to the clamping seat 33. A fixing cylinder 36 is fixedly connected to the surface of the L-shaped fixing strip 32 close to one side of the steel cable protective cover 34. A plugging rod 37 is fixedly connected to one side of the steel cable protective cover 34. The plugging rod 37 is clamped with the fixing cylinder 36. The steel cable protective cover 34 is fixed by the clamping block 35 and the plugging rod 37. The steel cable protective cover 34 protects the steel cable.

[0037] Guide wheels 4 are provided at the four corners of the car 2 near the fan column 1. The car 2 is slidably connected to the sliding guide rail 3 through the guide wheels 4. The guide wheels 4 include a connecting seat 41. A connecting shaft 42 is fixedly connected to one side of the connecting seat 41. Rollers 43 are rotatably connected to both ends of the connecting shaft 42. The diameter of the roller 43 is smaller than the inner height of the L-shaped fixing strip 32, thereby ensuring that the roller can roll. The distance between the two rollers 43 is smaller than the distance between the two L-shaped fixing strips 32, thereby ensuring that the roller 43 can roll in the two L-shaped fixing strips 32. When the car 2 is lifted or lowered, the guide wheels 4 on both sides of the bottom are rollingly connected to the surface of the fixed bottom plate 31, and the guide wheels 4 on both sides of the top are rollingly connected to the inner wall surface of the L-shaped fixing strip 32.

[0038] A crossbeam 5 is fixedly connected to the bottom of the car 2 and close to the fan column 1. Fixed pulleys 6 are fixedly connected to both ends of the crossbeam 5. A first winding roller 7 and a second winding roller 13 are fixedly connected to the top of the fan column 1. A first steel cable 8 is wound on the surface of the first winding roller 7. A first fixed seat 9 is fixedly connected to the top of one side of the fan column 1. One end of the first steel cable 8 passes through the two fixed pulleys 6 at both ends of the crossbeam 5 in turn and is fixedly connected to the first fixed seat 9. The rotation of the first winding roller 7 drives the car 2 to rise and fall. A crossbeam 5 is fixedly connected to the top center of the car 2 close to the fan column 1. A second steel cable 14 is wound on the surface of a traction fixed pulley 12 and a second winding roller 13. A second fixed seat 15 is fixedly connected to the top of one side of the fan column 1 and at a corresponding position of the second winding roller 13. One end of the second steel cable 14 passes around the surface of the traction fixed pulley 12 and is fixedly connected to the second fixed seat 15. The rotation of the second winding roller 13 also drives the lifting and lowering of the car 2. To ensure the smooth lifting and lowering of the car 2, the first winding roller 7 and the second winding roller 13 adopt the same model and the same rotation speed. The double-cable design ensures the safety of operation and is also convenient for replacing one of the steel cables.

[0039] A first detection device 10 is fixedly connected to the surface of the fan column 1 and near the top. The first detection device 10 is sleeved on the surface of the first steel cable 8. A control box 11 is arranged on the top of the fan column 1. A comparison module, a control module and an alarm module are arranged in the control box 11. The signal output end of the first detection device 10 is electrically connected to the comparison module.

[0040] The first detection device 10 includes a rectangular tube 101, and the inner wall of the rectangular tube is provided with a first measuring sensor 102 and a second measuring sensor 103 for measuring the diameter of the first steel cable 8. The first measuring sensor 102 is arranged below the second measuring sensor 103. The first measuring sensor 102 detects the diameter of the first steel cable 8 in the width direction of the car 2, and the second measuring sensor 103 detects the diameter of the first steel cable 8 in the length direction of the car 2. The vertical design of the detection direction avoids monitoring blind spots and improves the quality of monitoring. The first measuring sensor 102 and the second measuring sensor 103 transmit the detection results to the comparison module, and the comparison module compares the detection value with the original diameter value of the first steel cable 8. If the detection value is inconsistent with the diameter value, the control module issues an alarm through the alarm module. The top and bottom of the rectangular tube 101 are provided with perforations 104 to avoid contact between the steel cable and the sensor surface. Specifically, the first measurement sensor 102 can use a through-beam edge measurement sensor receiver, and the second measurement sensor 103 can use a through-beam edge measurement sensor transmitter, using the FASTUS TD1 series, which uses a light curtain laser, which is installed facing each other. The transmitter emits a light curtain laser with a width of L1, and the receiver receives two light curtain lasers with widths of L2 and L3, that is, the diameter of the steel cable is L1-(L2+L3), which is compared with the initial diameter of the steel cable. If it is smaller than the initial diameter, it means that the steel cable is worn. If the wear exceeds the threshold, the control module will alarm through the alarm module. The alarm module uses a remote alarm and is directly connected to the wind power control center. If the receiver receives a light curtain laser with a width of three sections, the steel cable may be broken and bifurcated. At this time, the control module will alarm through the alarm module.

[0041] A second detection device 16 for detecting the diameter of the second steel cable 14 is disposed on the surface of the wind turbine column 1 , and the detection principle is the same as that of the first detection device 10 .

[0042] A reducer 16 and a drive motor 17 are fixedly connected to the top of the fan column 1. The reducer 16 is arranged between the first winding roller 7 and the second winding roller 13. The reducer 16 is a dual-output shaft reducer. The two output shaft ends of the reducer 16 are respectively fixedly connected to one end of the first winding roller 7 and the second winding roller 13. The output shaft end of the drive motor 17 is fixedly connected to the input shaft end of the reducer 16. The use of a dual-output shaft reducer ensures that the first winding roller 7 and the second winding roller 13 rotate synchronously.

[0043] A lifting button is provided in the car 2, and the lifting button is electrically connected to the control module through a control line. The control end of the control module is electrically connected to the drive motor 17. A drag chain 18 is provided on the surface of the fan column 1. One end of the drag chain 18 is fixed to the top of the car 2. The control line is arranged inside the drag chain 18. The lifting button realizes the control of the lifting and lowering of the car 2, and the drag chain 18 protects the control line.

[0044] A first directional wheel 19 and a second directional wheel 20 are sequentially arranged on the surface of the fan column 1 and near the top. The first directional wheel 19 is arranged on one side of the first winding roller 7 for supporting the first steel cable 8, and the second directional wheel 20 is arranged on one side of the second winding roller 13 for supporting the second steel cable 14. The direction of the steel cable is changed by the first directional wheel 19 and the second directional wheel 20 to avoid friction between the steel cable and one side of the top of the fan column 1.

[0045] A first door 201 is provided on one side of the car 2, and a second door 202 is provided on the other side of the car 2 for easy entry and exit.

[0046] A method for using an offshore wind power operation and maintenance lifting and landing device comprises the following steps:

[0047] S1, open the first door 201, enter the car 2 and close the door;

[0048] S2, control the driving motor 17 by the lifting button to make the car 2 rise;

[0049] S3. After reaching the designated height, the driving motor 17 stops working, the second box door 202 is opened, and the inside of the fan column 1 is entered to complete the landing.

[0050] In step S2, the measuring sensors in the first detection device 10 and the second detection device 16 transmit the detection results to the comparison module, and the comparison module compares the detection value with the original diameter value of the corresponding steel cable. If the detection value is inconsistent with the diameter value, the control module issues an alarm through the alarm module.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An offshore wind power operation and maintenance lifting and landing device, comprising a wind turbine column (1) and a car (2), characterized in that: The surface of the fan column (1) is provided with a sliding guide rail (3), and the four corners of the car (2) close to the fan column (1) are provided with guide wheels (4), and the car (2) is slidably connected to the sliding guide rail (3) through the guide wheels (4). The bottom of the car (2) and the side close to the fan column (1) are fixedly connected with a crossbeam (5), and the two ends of the crossbeam (5) are fixedly connected with fixed pulleys (6). The top of the fan column (1) is fixedly connected with a first winding roller (7) and a second winding roller (13), and the surface of the first winding roller (7) is wound with a first steel cable (8). The fan column (1 ) is fixedly connected to a first fixed seat (9) at the top of one side, one end of the first steel cable (8) is passed around two fixed pulleys (6) at both ends of the cross beam (5) in sequence and is fixedly connected to the first fixed seat (9), a first detection device (10) is fixedly connected to the surface of the fan column (1) and near the top, the first detection device (10) is sleeved on the surface of the first steel cable (8), a control box (11) is arranged on the top of the fan column (1), a comparison module, a control module and an alarm module are arranged in the control box (11), and a signal output end of the first detection device (10) is electrically connected to the comparison module; The first detection device (10) comprises a rectangular tube (101), the inner wall of which is provided with a first measuring sensor (102) and a second measuring sensor (103) for measuring the diameter of the first steel cable (8), the first measuring sensor (102) being provided below the second measuring sensor (103), the first measuring sensor (102) detecting the diameter of the first steel cable (8) in the width direction of the car (2), the second measuring sensor (103) detecting the diameter of the first steel cable (8) in the length direction of the car (2), the first measuring sensor (102) and the second measuring sensor (103) transmitting the detection results to a comparison module, the comparison module comparing the detection value with the original diameter value of the first steel cable (8), if the detection value is inconsistent with the diameter value, the control module issues an alarm through the alarm module, the top and bottom of the rectangular tube (101) are provided with perforations (104); A traction fixed pulley (12) is fixedly connected to the center of the top of the car (2) on one side close to the fan column (1); a second steel cable (14) is wound around the surface of the second winding roller (13); a second fixed seat (15) is fixedly connected to the top of one side of the fan column (1) and located at a position corresponding to the second winding roller (13); one end of the second steel cable (14) passes around the surface of the traction fixed pulley (12) and is fixedly connected to the second fixed seat (15); and a second detection device (16) for detecting the diameter of the second steel cable (14) is provided on the surface of the fan column (1).

2. The offshore wind power operation and maintenance lifting and landing device according to claim 1 is characterized in that: A reducer (16) and a drive motor (17) are fixedly connected to the top of the fan column (1); the reducer (16) is arranged between the first winding roller (7) and the second winding roller (13); the reducer (16) is a double-output shaft reducer; the two output shaft ends of the reducer (16) are respectively fixedly connected to one end of the first winding roller (7) and the second winding roller (13); the output shaft end of the drive motor (17) is fixedly connected to the input shaft end of the reducer (16).

3. The offshore wind power operation and maintenance lifting and landing device according to claim 2 is characterized by: A lifting button is provided in the elevator car (2), and the lifting button is electrically connected to a control module via a control line, and a control end of the control module is electrically connected to a driving motor (17).

4. The offshore wind power operation and maintenance lifting and landing device according to claim 3 is characterized by: A drag chain (18) is arranged on the surface of the fan column (1), one end of the drag chain (18) is fixed to the top of the car (2), and the control line is arranged inside the drag chain (18).

5. The offshore wind power operation and maintenance lifting and landing device according to claim 1 is characterized in that: A first directional wheel (19) and a second directional wheel (20) are sequentially arranged on the surface of the fan column (1) and near the top; the first directional wheel (19) is arranged on one side of the first winding roller (7) for supporting the first steel cable (8); and the second directional wheel (20) is arranged on one side of the second winding roller (13) for supporting the second steel cable (14).

6. The offshore wind power operation and maintenance lifting and landing device according to claim 1 is characterized by: The sliding guide rail (3) comprises a fixed base plate (31), the surface of the fixed base plate (31) is fixedly connected with an L-shaped fixing strip (32), a pair of L-shaped fixing strips (32) are symmetrically arranged, one side of the fixed base plate (31) is fixedly connected with a clamping seat (33), one side of the fixed base plate (31) is provided with a steel cable protective cover (34), a clamping block (35) is provided at the bottom of the steel cable protective cover (34), the clamping block (35) is slidably connected to the clamping seat (33), the surface of the L-shaped fixing strip (32) close to the side of the steel cable protective cover (34) is fixedly connected with a fixing cylinder (36), one side of the steel cable protective cover (34) is fixedly connected with an insertion rod (37), and the insertion rod (37) is clamped with the fixing cylinder (36).

7. The offshore wind power operation and maintenance lifting and landing device according to claim 6 is characterized by: The guide wheel (4) comprises a connecting seat (41), one side of the connecting seat (41) is fixedly connected to a connecting shaft (42), both ends of the connecting shaft (42) are rotatably connected to rollers (43), the diameter of the rollers (43) is smaller than the inner height of the L-shaped fixing strip (32), and the distance between the two rollers (43) is smaller than the distance between the two L-shaped fixing strips (32).

8. The offshore wind power operation and maintenance lifting and landing device according to claim 1 is characterized by: A first door (201) is provided on one side of the elevator car (2), and a second door (202) is provided on the other side of the elevator car (2).

9. A method for using an offshore wind power operation and maintenance lifting and boarding device, applicable to an offshore wind power operation and maintenance lifting and boarding device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, open the first door (201), enter the elevator car (2) and close the door; S2, controlling the driving motor (17) by means of a lifting button, so that the car (2) rises; S3. After reaching the designated height, the driving motor (17) stops working, the second box door (202) is opened, and the inside of the fan column (1) is entered to complete the landing.

10. A method for using an offshore wind power operation and maintenance lifting and landing device according to claim 9, characterized in that: In step S2, the measuring sensors in the first detection device (10) and the second detection device (16) transmit the detection results to the comparison module, and the comparison module compares the detection value with the original diameter value of the corresponding steel cable. If the detection value is inconsistent with the diameter value, the control module issues an alarm through the alarm module.

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