Internal cleaning device for hub in cabin of wind power generator

Abstract

The invention relates to the technical field of wind driven generator cleaning, in particular to a device for cleaning the interior of a hub in a wind driven generator cabin, the cleaning device further comprises a cleaning execution system and a post-processing monitoring system, the cleaning execution system is arranged on a fixing sleeve, a processing box is communicated with the cleaning execution system, and the post-processing monitoring system is arranged on the fixing sleeve. The treatment box is internally provided with a first cavity and a second cavity, the second cavity is filled with a cleaning agent, an electromagnetic valve is arranged between the second cavity and the cleaning execution system, and the post-treatment monitoring system is arranged on the treatment box and connected with the cleaning execution system; compared with a traditional mode that a worker enters the interior of the hub from high altitude to conduct manual cleaning, the device can achieve automatic regular cleaning work, the input amount of labor force is reduced, and meanwhile the interior of the hub can be fully cleaned without dead corners by means of the energy conversion principle.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine cleaning, and more specifically to a device for cleaning the inside of a hub in a wind turbine cabin. Background Art

[0002] Wind power generation is the most technologically mature power generation method in today's new energy development. The impeller is the power component of the wind turbine, including the hub and blades. It is transported to the construction site by special vehicles for installation.

[0003] Due to the complex air environment at high altitudes and the large amount of dust in the air, a large amount of dust will accumulate on the inner side of the hub during the long-term rotation of the hub. Therefore, the staff is required to clean the inside of the hub regularly. Each time the staff cleans the hub, the wind turbine needs to be shut down, and the staff needs to work at high altitude, which poses certain safety hazards and takes a long time. The power outage of the wind turbine also causes economic losses. Therefore, there is an urgent need for a cleaning device that can automatically clean the inside of the hub. Summary of the invention

[0004] The purpose of the present invention is to provide a device for cleaning the inside of a hub in a wind turbine cabin to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for cleaning the inside of a hub in a wind turbine nacelle, comprising a connecting sleeve, a fixing sleeve, a connecting frame and a processing box, wherein the connecting sleeve is arranged on a column of the wind turbine, the fixing sleeve is arranged in the nacelle hub of the wind turbine, a guide rail is formed on the fixing sleeve for slidingly cooperating with the connecting sleeve, the connecting frame is arranged on the fixing sleeve, and the processing box is arranged on the connecting frame, the cleaning device also comprises a cleaning execution system and a post-processing monitoring system, the cleaning execution system is arranged on the fixing sleeve and is used for vacuuming and spraying a cleaning agent in the nacelle hub of the wind turbine, the processing box is connected to the cleaning execution system, a first cavity and a second cavity are arranged in the processing box, the second cavity is filled with a cleaning agent, an electromagnetic valve is arranged between the second cavity and the cleaning execution system, the post-processing monitoring system is arranged on the processing box and is connected to the cleaning execution system, and is used for monitoring the working time of the cleaning execution system and triggering the opening and closing of the electromagnetic valve and the output of the cleaning agent;

[0007] The cleaning execution system includes a guide box, an inner sealing ring plate, a two-way pipe and an execution component. The guide box is arranged on a fixed sleeve and located in the cabin of a wind turbine. The fixed sleeve and the guide box are arranged concentrically. An upper cavity and a lower cavity are formed in the guide box. The sealing ring plate is movably arranged on the inner side of the guide box. The two-way pipe is arranged on one side of the guide box. The two-way pipe connects the upper cavity with the first cavity and connects the lower cavity with the second cavity. The execution component is arranged between the guide box and the fixed sleeve for performing dust collection and cleaning agent output work.

[0008] A further technical solution of the present application: the execution component includes a first movable seat, a second movable seat, a magnetic block, a dust suction module and a liquid spray module, the first movable seat and the second movable seat are arranged opposite to each other and are both arranged on a fixed sleeve, the first movable seat and the second movable seat are both slidably matched with the fixed seat, the first movable seat and the second movable seat and the connecting sleeve are all provided with magnetic blocks that meet and attract each other, the dust suction module is arranged on the first movable seat and is connected to the upper cavity through an inner sealing ring plate, and is used to suck the dust in the cabin into the upper cavity and finally enter the first cavity, the liquid spray module is arranged on the second movable seat, and the liquid spray module is connected to the lower cavity through an inner sealing ring plate, and the liquid spray module is used to perform the work of spraying the cleaning agent.

[0009] A further technical solution of the present application: the dust suction module includes a fixed seat, a mounting platform, a dust suction seat, several dust suction heads and a dust suction unit, the fixed seat is arranged on a first movable seat, the mounting platform is movably arranged on a guide box and connected to the fixed seat, the dust suction seat is arranged on the mounting platform, several dust suction heads are arranged on the dust suction seat, the dust suction unit is arranged between the fixed seat and the fixed sleeve and connects the upper cavity and the dust suction head, and when the fixed sleeve rotates relative to the first movable seat, the dust suction unit is controlled to work and the dust in the cabin is sucked into the first cavity.

[0010] A further technical solution of the present application: the dust suction unit includes a dust suction pipe, a piston rod, a screw sleeve, a third gear and a gear ring, the gear ring is arranged on a fixed sleeve, the dust suction pipe is arranged on a fixed seat and an input hole and an output hole are arranged on the dust suction pipe, the input hole is connected with the dust suction head, the output hole is connected with the upper cavity, and a one-way valve is arranged in the input hole and the output hole, the third gear is movably arranged on the first movable seat and meshed with the gear ring, a reciprocating screw is movably arranged between the first movable seat and the dust suction pipe, the piston rod is movably arranged in the dust suction pipe and cooperates with the reciprocating screw thread, and the reciprocating screw and the third gear are coaxially connected.

[0011] The present application has a further technical solution: a plurality of the dust collector heads and the dust collector seat are hinged and a torsion spring is provided at the hinge, an angle adjustment unit is provided between the dust collector seat and the fixed sleeve, and the angle adjustment unit is connected to the dust collector head for adjusting the angle between the dust collector head and the dust collector seat.

[0012] The present application has a further technical solution: the angle adjustment unit includes a second gear, a rack, a roller and a plurality of protrusions, the plurality of protrusions are distributed on the outer wall of the guide box, the second gear is movably arranged on the dust collector seat and is coaxially connected to the dust collector head, the rack is movably arranged on the mounting platform and the two are elastically connected, the rack and the second gear are meshed, the roller is movably arranged on the rack, the roller and the outer wall of the guide box are slidably matched, and the protrusion is located on the moving path of the roller.

[0013] The present application has a further technical solution: the spray module includes a connecting head, a spray rod, a sleeve, a rotating shaft and a first gear, the rotating shaft is movably arranged on the second movable seat, the sleeve is sleeved on the outer wall of the rotating shaft and is connected to the lower cavity, the first gear is movably arranged on the second movable seat and is coaxially connected to the rotating shaft, the connecting head is arranged at one end of the rotating shaft away from the second movable seat, the spray rod is arranged on the connecting head and is connected to the sleeve, and the first gear is meshed with the gear ring.

[0014] A further technical solution of the present application is as follows: an exhaust box is arranged on the processing box, a barrier net is arranged in the exhaust box, the post-processing monitoring system includes fan blades, swing arms, pulling arms, lifting blocks, stepper motors, driving screws, extrusion plates, moving rods and monitoring components, the extrusion plate is movably arranged in the second cavity, the moving rod is movably arranged in the processing box and one end is connected to the extrusion plate, the driving screw is movably arranged between the processing box and the connecting frame, the stepper motor is arranged on the connecting frame and its output end is connected to the driving screw, the driving screw and the moving rod are threadedly matched, the fan blades are movably arranged in the exhaust box, the swing arm is movably arranged on the outer wall of the exhaust box and is coaxially connected to the fan blades, the lifting block is movably arranged on the exhaust box and is movably connected to the swing arm through the pulling arm, the monitoring component is arranged on the processing box and connected to the lifting block, for monitoring the number of reciprocating motions of the lifting block and controlling the opening and closing of the solenoid valve and the stepper motor.

[0015] A further technical solution of the present application is as follows: the monitoring component includes a conductive block, a detection strip, a resistor strip, a push strip, a monitoring seat, a first slot and a limit member; the monitoring seat is arranged on the processing box, the detection strip is movably arranged on the monitoring seat, the resistor strip is arranged on the detection strip, the conductive block is arranged on the monitoring seat and slidably cooperates with the resistor strip, the first slots are several in number and are equidistantly arranged on the detection strip, one end of the push strip is hinged to the lifting block and a torsion spring is arranged at the hinge, the push strip cooperates with the first slot, and the limit member is arranged between the detection strip and the monitoring seat to limit the unidirectional movement of the detection strip.

[0016] A further technical solution of the present application is as follows: the limiting member includes a second card slot, an electric telescopic rod and a telescopic card strip, the second card slots are multiple in number and are equidistantly arranged on one side of the detection strip, the telescopic card strip is movably arranged on the monitoring seat and cooperates with the second card slot, the electric telescopic rod is arranged on the monitoring seat and its movable end is connected to the telescopic card strip.

[0017] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0018] The embodiment of the present invention sets a cleaning execution system and a post-processing monitoring system, and directly installs the cleaning execution system and the post-processing monitoring system inside the hub of the wind turbine. By utilizing the rotation of the hub relative to the column as power, the cleaning execution system and the post-processing monitoring system are controlled to work. Then, by utilizing the mechanical linkage structure, the dust on the surfaces of various components inside the hub can be first sucked into the processing box through the dust collection module of the cleaning execution system. When the post-processing monitoring system monitors that the dust collection working time reaches the expected value, it can automatically control the output of the cleaning agent and spray it from the liquid spray module, thereby realizing the spray cleaning of the inside of the hub. Compared with the traditional method of manually entering the inside of the hub from a high altitude for manual cleaning, the present device can realize automatic and regular cleaning work, reduce the labor input, and can also utilize the energy conversion principle to fully clean the inside of the hub without dead ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the internal cleaning device of the hub in the wind turbine cabin according to an embodiment of the present invention;

[0020] Figure 2 It is a structural schematic diagram of a cleaning execution system in a device for cleaning the inside of a hub in a wind turbine cabin according to an embodiment of the present invention;

[0021] Figure 3 It is a schematic structural diagram of an execution component in a device for cleaning the inside of a hub in a wind turbine cabin according to an embodiment of the present invention;

[0022] Figure 4An exploded view of a connecting sleeve, a guide box and an inner sealing ring plate in a device for cleaning the inside of a hub in a wind turbine cabin according to an embodiment of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a dust collection module in a device for cleaning the inside of a hub in a wind turbine cabin according to an embodiment of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a post-processing monitoring system in a device for cleaning the inside of a hub in a wind turbine cabin according to an embodiment of the present invention;

[0025] Figure 7 It is a partial cross-sectional view of a treatment box in a device for cleaning the inside of a hub in a wind turbine cabin according to an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the monitoring component in the internal cleaning device of the hub in the wind turbine cabin according to an embodiment of the present invention.

[0027] Explanation of the symbols in the schematic diagram:

[0028] 1-connecting sleeve, 2-fixed sleeve, 3-magnetic block, 4-guide box, 5-connecting frame, 6-first moving seat, 7-guide rail, 8-second moving seat, 9-fixed seat, 10-mounting table, 11-dust suction pipe, 12-inner sealing ring plate, 13-raised part, 14-dust suction seat, 15-sleeve box, 16-spray rod, 17-rotating shaft, 18-first gear, 19-two-way pipe, 20-connector, 21-upper cavity, 22-lower cavity, 23-roller, 24-rack, 25-dust suction head, 26-second gear, 28-piston rod , 29-screw sleeve, 30-third gear, 31-gear ring, 32-stepping motor, 33-processing box, 34-detection strip, 35-first card slot, 36-second card slot, 37-lifting block, 38-exhaust box, 39-pull arm, 40-electric telescopic rod, 41-extrusion plate, 42-second cavity, 43-solenoid valve, 44-first cavity, 45-monitoring seat, 46-telescopic card strip, 47-resistance strip, 48-conductive block, 49-push strip, 50-swing arm, 51-fan blade, 52-moving rod, 53-driving screw. DETAILED DESCRIPTION

[0029] 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. The present invention is further described below in combination with the embodiments.

[0030] See also Figure 1-Figure 8In one embodiment of the present application, a device for cleaning the inside of a hub in a wind turbine nacelle includes a connecting sleeve 1, a fixing sleeve 2, a connecting frame 5, and a processing box 33. The connecting sleeve 1 is arranged on a column of the wind turbine, the fixing sleeve 2 is arranged in the nacelle hub of the wind turbine, the fixing sleeve 2 is formed with a guide rail 7 that slides with the connecting sleeve 1, the connecting frame 5 is arranged on the fixing sleeve 2, the processing box 33 is arranged on the connecting frame 5, and the cleaning device also includes a cleaning execution system and a post-processing monitoring system. The cleaning execution system is arranged On the fixed sleeve 2, it is used to vacuum and spray the cleaning agent inside the nacelle hub of the wind turbine. The processing box 33 is connected to the cleaning execution system. The processing box 33 is provided with a first cavity 44 and a second cavity 42. The second cavity 42 is filled with a cleaning agent. A solenoid valve 43 is provided between the second cavity 42 and the cleaning execution system. The post-processing monitoring system is provided on the processing box 33 and connected to the cleaning execution system, and is used to monitor the working time of the cleaning execution system and trigger the opening and closing of the solenoid valve 43 and the output of the cleaning agent.

[0031] The cleaning execution system includes a guide box 4, an inner sealing ring plate 12, a two-way pipe 19 and an execution component. The guide box 4 is arranged on the fixed sleeve 2 and is located in the cabin of the wind turbine. The fixed sleeve 2 and the guide box 4 are arranged concentrically. An upper cavity 21 and a lower cavity 22 are formed in the guide box 4. The sealing ring plate is movably arranged on the inner side of the guide box 4. The two-way pipe 19 is arranged on one side of the guide box 4. The two-way pipe 19 connects the upper cavity 21 with the first cavity 44 and connects the lower cavity 22 with the second cavity 42. The execution component is arranged between the guide box 4 and the fixed sleeve 2, and is used to perform dust collection and detergent output work.

[0032] In the exemplary embodiment, the execution component includes a first movable seat 6, a second movable seat 8, a magnetic block 3, a dust suction module and a liquid spray module. The first movable seat 6 and the second movable seat 8 are arranged opposite to each other and are both arranged on the fixed sleeve 2. The first movable seat 6 and the second movable seat 8 are both slidably matched with the fixed seat 9. The first movable seat 6, the second movable seat 8 and the connecting sleeve 1 are all provided with magnetic blocks 3 that meet and attract each other. The dust suction module is arranged on the first movable seat 6 and is connected to the upper cavity 21 through the inner sealing ring plate 12, and is used to suck the dust in the cabin into the upper cavity 21 and finally enter the first cavity 44. The liquid spray module is arranged on the second movable seat 8, and the liquid spray module is connected to the lower cavity 22 through the inner sealing ring plate 12. The liquid spray module is used to perform the cleaning agent spraying work.

[0033] In actual application, by fixing the connecting sleeve 1 on the column of the wind turbine, and by connecting the fixing sleeve 2 with the hub in the cabin of the wind turbine, in the process of the hub rotating relative to the column due to wind power generation of the wind turbine, the positions of the first movable seat 6 and the second movable seat 8 can be fixed under the gravitational force between the magnetic blocks 3, and the fixing seat 9 and the guide box 4 can rotate relative to the first movable seat 6 and the second movable seat 8. In this process, the dust collection module can be driven to work, and the dust collection module can suck the dust at various positions in the hub into the upper cavity 21 and finally input it into the first cavity 44. At the same time, the actual working time of the dust collection module is monitored in real time through the post-processing monitoring system. When the working time of the dust collection module reaches the expected value, the post-processing monitoring system can control the solenoid valve 43 to open, so that the second cavity 42 and the lower cavity 22 are connected. At the same time, the post-processing monitoring system can input the detergent in the second cavity 42 into the liquid spraying module, so that the detergent is sprayed in the form of mist, and the surfaces of the components at various positions of the hub are cleaned without manual regular cleaning by the staff.

[0034] See also Figure 1-Figure 8 As another preferred embodiment of the present application, the dust collection module includes a fixed seat 9, a mounting platform 10, a dust collection seat 14, a plurality of dust collection heads 25 and a dust collection unit. The fixed seat 9 is arranged on the first movable seat 6, the mounting platform 10 is movably arranged on the guide box 4 and connected to the fixed seat 9, the dust collection seat 14 is arranged on the mounting platform 10, and a plurality of dust collection heads 25 are arranged on the dust collection seat 14. The dust collection unit is arranged between the fixed seat 9 and the fixed sleeve 2 and connects the upper cavity 21 and the dust collection head 25. When the fixed sleeve 2 rotates relative to the first movable seat 6, the dust collection unit is controlled to work and the dust in the cabin is sucked into the first cavity 44.

[0035] In a specific case of the present embodiment, the dust suction unit includes a dust suction pipe 11, a piston rod 28, a screw sleeve 29, a third gear 30 and a gear ring 31, the gear ring 31 is arranged on the fixed sleeve 2, the dust suction pipe 11 is arranged on the fixed seat 9 and the dust suction pipe 11 is provided with an input hole and an output hole, the input hole is connected with the dust suction head 25, the output hole is connected with the upper cavity 21, and a one-way valve is arranged in the input hole and the output hole, the third gear 30 is movably arranged on the first movable seat 6 and meshed with the gear ring 31, a reciprocating screw is movably arranged between the first movable seat 6 and the dust suction pipe 11, the piston rod 28 is movably arranged in the dust suction pipe 11 and is threadedly matched with the reciprocating screw, and the reciprocating screw and the third gear 30 are coaxially connected.

[0036] In another specific situation of this embodiment, several of the dust collector heads 25 are hinged to the dust collector seat 14 and a torsion spring is provided at the hinge. An angle adjustment unit is provided between the dust collector seat 14 and the fixed sleeve 2. The angle adjustment unit is connected to the dust collector head 25 and is used to adjust the angle between the dust collector head 25 and the dust collector seat 14.

[0037] It should be supplemented that the angle adjustment unit includes a second gear 26, a rack 24, a roller 23 and a plurality of protrusions 13, wherein the plurality of protrusions 13 are distributed on the outer wall of the guide box 4, the second gear 26 is movably arranged on the dust collector seat 14 and is coaxially connected to the dust collector head 25, the rack 24 is movably arranged on the mounting table 10 and the two are elastically connected, the rack 24 and the second gear 26 are meshed, the roller 23 is movably arranged on the rack 24, the roller 23 and the outer wall of the guide box 4 are slidably matched, and the protrusion 13 is located on the moving path of the roller 23.

[0038] When the wheel hub rotates relative to the column, the fixed seat 9 rotates relative to the connecting sleeve 1. During this process, the gear ring 31 can rotate relative to the third gear 30. Under the meshing action between the third gear 30 and the gear ring 31, the third gear 30 and the reciprocating screw can be driven to rotate. When the reciprocating screw rotates, the piston rod 28 can be driven to reciprocate, and then the dust at various positions inside the wheel hub can be sucked into the dust suction pipe 11 along the dust suction head 25 and the dust suction seat 14 and finally input into the first cavity 44 along the upper cavity 21. During this process, since the roller 23 can successively meet the protrusions 13 at different positions, the rack 24 can reciprocate relative to the dust suction head 25. Under the meshing action between the rack 24 and the second gear 26, the second gear 26 is driven to rotate repeatedly, and then the dust suction head 25 can be driven to swing continuously relative to the dust suction seat 14, further improving the dust suction work at various positions inside the wheel hub, and avoiding dust adsorbing on the surface of the equipment inside the wheel hub and affecting the normal operation of the equipment.

[0039] See also Figure 1-Figure 8 As another preferred embodiment of the present application, the spray module includes a connecting head 20, a spray rod 16, a sleeve 15, a rotating shaft 17 and a first gear 18, the rotating shaft 17 is movably arranged on the second movable seat 8, the sleeve 15 is sleeved on the outer wall of the rotating shaft 17 and is connected to the lower cavity 22, the first gear 18 is movably arranged on the second movable seat 8 and is coaxially connected to the rotating shaft 17, the connecting head 20 is arranged at one end of the rotating shaft 17 away from the second movable seat 8, the spray rod 16 is arranged on the connecting head 20 and is connected to the sleeve 15, and the first gear 18 is meshed with the gear ring 31.

[0040] In actual application, when the hub of the wind turbine rotates relative to the column, the gear ring 31 rotates relative to the first gear 18. Under the meshing action between the gear ring 31 and the first gear 18, the first gear 18, the rotating shaft 17 and the spray rod 16 can be driven to rotate, thereby controlling the rotation of the spray rod 16. At the same time, when the post-processing monitoring system monitors that the vacuuming time reaches the expected value, the post-processing monitoring system can open the solenoid valve 43, and at the same time control the cleaning agent in the second cavity to enter the sleeve box 15 and finally input into the spray rod 16 and finally spray to various positions in the hub, thereby effectively cleaning the inside of the hub after vacuuming.

[0041] See also Figure 1-Figure 8 As another preferred embodiment of the present application, an exhaust box 38 is provided on the processing box 33, and a barrier net is provided in the exhaust box 38. The post-processing monitoring system includes a fan blade 51, a swing arm 50, a pull arm 39, a lifting block 37, a stepper motor 32, a driving screw 53, an extrusion plate 41, a moving rod 52 and a monitoring component. The extrusion plate 41 is movably arranged in the second cavity, the moving rod 52 is movably arranged in the processing box 33 and one end is connected to the extrusion plate 41, the driving screw 53 is movably arranged between the processing box 33 and the connecting frame 5, and the stepper motor The machine 32 is arranged on the connecting frame 5 and its output end is connected to the driving screw 53, the driving screw 53 and the moving rod 52 are threadedly matched, the fan blade 51 is movably arranged in the exhaust box 38, the swing arm 50 is movably arranged on the outer wall of the exhaust box 38 and is coaxially connected to the fan blade 51, the lifting block 37 is movably arranged on the exhaust box 38 and is movably connected to the swing arm 50 through the pulling arm 39, the monitoring component is arranged on the processing box 33 and connected to the lifting block 37, for monitoring the number of reciprocating motions of the lifting block 37 and controlling the opening and closing of the solenoid valve 43 and the stepping motor 32.

[0042] In a specific case of the present embodiment, the monitoring assembly includes a conductive block 48, a detection strip 34, a resistor bar 47, a push bar 49, a monitoring seat 45, a first card slot 35 and a limit member. The monitoring seat 45 is arranged on the processing box 33, the detection strip 34 is movably arranged on the monitoring seat 45, the resistor bar 47 is arranged on the detection strip 34, the conductive block 48 is arranged on the monitoring seat 45 and slidably cooperates with the resistor bar 47, the number of the first card slots 35 is several and they are equidistantly arranged on the detection strip 34, one end of the push bar 49 is hinged to the lifting block 37 and a torsion spring is arranged at the hinge, the push bar 49 cooperates with the first card slot 35, and the limit member is arranged between the detection strip 34 and the monitoring seat 45 to limit the unidirectional movement of the detection strip 34.

[0043] Non-restrictive, this embodiment is not limited to the above-mentioned combination of the resistor bar 47 and the conductive block 48 to monitor the position of the detection bar 34, and an infrared distance sensor or a laser distance sensor can also be used instead, which are not listed here one by one.

[0044] In another specific case of this embodiment, the limiting member includes a second card slot 36, an electric telescopic rod 40 and a telescopic card strip 46, the second card slots 36 are in multiple numbers and are equidistantly arranged on one side of the detection strip 34, the telescopic card strip 46 is movably arranged on the monitoring seat 45 and cooperates with the second card slot 36, the electric telescopic rod 40 is arranged on the monitoring seat 45 and its movable end is connected to the telescopic card strip 46.

[0045] After the dust is sucked into the first cavity 44 in the processing box 33, the air can be discharged from the exhaust box 38, and the dust is left in the first cavity 44. During this process, the contact between the air and the fan blades 51 can drive the fan blades 51 to rotate continuously, thereby driving the swing arm 50 to rotate. Under the action of the swing arm 50 and the pulling arm 39, the lifting block 37 can be driven to reciprocate in the vertical direction. Under the interference of the first card slot 35 and the push bar 49, the detection bar 34 can be driven to move along the monitoring seat 45, thereby making the conductive block 48 contact different positions of the conductive bar. When the detection bar 34 moves to the set position (that is, when the resistance value of the connected circuit reaches the expected position), the electromagnetic The valve 43 and the stepper motor 32 are powered on and opened for a period of time and then automatically closed. When the stepper motor 32 is powered on and rotated, it can drive the driving screw 53 to rotate, and then under the action of the threaded cooperation between the driving screw 53 and the moving rod 52, the moving rod 52 and the extrusion plate 41 are driven to move along the second cavity 42, so that the cleaning agent in the second cavity 42 is input into the lower cavity 22 and finally enters the spray rod 16 for spraying, so as to realize the spray cleaning work in the hub in the wind turbine cabin, and then the electric telescopic rod 40 is powered on and retracted, driving the telescopic card strip 46 to disengage from the second card slot 36, so that under the action of the elastic restoring force, the position of the detection strip 34 and the resistance strip 47 is reset.

[0046] How this application works:

[0047] By fixing the connecting sleeve 1 on the column of the wind turbine generator, and by connecting the fixing sleeve 2 with the hub in the cabin of the wind turbine generator, when the wind turbine generates wind power and the hub rotates relative to the column, the positions of the first movable seat 6 and the second movable seat 8 can be fixed under the gravitational force between the magnetic blocks 3, and the fixing seat 9 and the guide box 4 can rotate relative to the first movable seat 6 and the second movable seat 8. In this process, the gear ring 31 can rotate relative to the third gear 30, and the meshing action between the third gear 30 and the gear ring 31 can drive the third gear 30 and the reciprocating screw to rotate, and the reciprocating screw can drive the piston rod 28 to reciprocate when rotating. , and then the dust at various positions inside the wheel hub can be sucked into the dust suction pipe 11 along the dust suction head 25 and the dust suction seat 14 and finally input into the first cavity 44 along the upper cavity 21. In this process, since the roller 23 can successively meet the protrusions 13 at different positions, the rack 24 can reciprocate relative to the dust suction head 25. Under the meshing action between the rack 24 and the second gear 26, the second gear 26 is driven to rotate repeatedly, and then the dust suction head 25 can be driven to swing continuously relative to the dust suction seat 14, further improving the dust suction work at various positions inside the wheel hub, and avoiding dust adsorbing on the surface of the equipment inside the wheel hub and affecting the normal operation of the equipment. After the dust is sucked into the first cavity 44 in the processing box 33, the air can be discharged from the exhaust box 38, and the dust is left in the first cavity 44. In this process, the contact between the air and the fan blades 51 can drive the fan blades 51 to rotate continuously, thereby driving the swing arm 50 to rotate. Under the action of the swing arm 50 and the pulling arm 39, the lifting block 37 can be driven to reciprocate in the vertical direction. Under the interference of the first slot 35 and the push bar 49, the detection bar 34 can be driven to move along the monitoring seat 45, thereby making the conductive block 48 contact different positions of the conductive bar. When the detection bar 34 moves to the set position (that is, when the resistance value of the connected circuit reaches the expected position), the solenoid valve 43 and the stepper motor 32 can be controlled to be powered on and opened for a period of time and then automatically closed. When the stepper motor 32 is powered on and rotates, it can drive the driving screw 53 to rotate, thereby driving Under the action of the threaded cooperation between the lead screw 53 and the moving rod 52, the moving rod 52 and the extrusion plate 41 are driven to move along the second cavity 42, so that the cleaning agent in the second cavity 42 is input into the lower cavity 22 and finally enters the spray rod 16 for spraying. At this time, the gear ring 31 rotates relative to the first gear 18. Under the meshing action between the gear ring 31 and the first gear 18, the first gear 18, the rotating shaft 17 and the spray rod 16 can be driven to rotate, so as to control the rotation of the spray rod 16. At the same time, when the post-processing monitoring system monitors that the vacuuming time reaches the expected value, the post-processing monitoring system can open the solenoid valve 43, and at the same time control the cleaning agent in the second cavity to enter the sleeve box 15 and finally input it into the spray rod 16 and finally spray it to various positions in the wheel hub, so as to effectively clean the inside of the wheel hub after vacuuming.Then the electric telescopic rod 40 is powered on and retracted, driving the telescopic clamping strip 46 to disengage from the second clamping slot 36 , so that the positions of the detection strip 34 and the resistance strip 47 are reset under the action of the elastic restoring force.

[0048] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for cleaning the hub inside a wind turbine nacelle, comprising a connecting sleeve, a fixing sleeve, a connecting frame and a processing box, wherein the connecting sleeve is arranged on a column of the wind turbine, the fixing sleeve is arranged in the nacelle hub of the wind turbine, a guide rail for slidingly cooperating with the connecting sleeve is formed on the fixing sleeve, the connecting frame is arranged on the fixing sleeve, and the processing box is arranged on the connecting frame, characterized in that: The cleaning device also includes a cleaning execution system and a post-processing monitoring system. The cleaning execution system is arranged on the fixed sleeve and is used to vacuum and spray the cleaning agent in the nacelle hub of the wind turbine. The processing box is connected to the cleaning execution system. The processing box is provided with a first cavity and a second cavity. The second cavity is filled with a cleaning agent. A solenoid valve is provided between the second cavity and the cleaning execution system. The post-processing monitoring system is arranged on the processing box and is connected to the cleaning execution system, and is used to monitor the working time of the cleaning execution system and trigger the opening and closing of the solenoid valve and the output of the cleaning agent. The cleaning execution system includes a guide box, an inner sealing ring plate, a two-way pipe and an execution component. The guide box is arranged on a fixed sleeve and located in the cabin of a wind turbine. The fixed sleeve and the guide box are arranged concentrically. An upper cavity and a lower cavity are formed in the guide box. The sealing ring plate is movably arranged on the inner side of the guide box. The two-way pipe is arranged on one side of the guide box. The two-way pipe connects the upper cavity with the first cavity and connects the lower cavity with the second cavity. The execution component is arranged between the guide box and the fixed sleeve for performing dust collection and cleaning agent output work.

2. The wind turbine generator cabin hub internal cleaning device according to claim 1, characterized in that: The execution component includes a first movable seat, a second movable seat, a magnetic block, a dust suction module and a liquid spray module. The first movable seat and the second movable seat are arranged opposite to each other and are both arranged on a fixed sleeve. The first movable seat and the second movable seat are both slidably matched with the fixed seat. The first movable seat, the second movable seat and the connecting sleeve are all provided with magnetic blocks that meet and attract each other. The dust suction module is arranged on the first movable seat and is connected to the upper cavity through an inner sealing ring plate, and is used to suck the dust in the cabin into the upper cavity and finally into the first cavity. The liquid spray module is arranged on the second movable seat, and the liquid spray module is connected to the lower cavity through an inner sealing ring plate. The liquid spray module is used to perform the work of spraying the detergent.

3. The wind turbine generator cabin hub internal cleaning device according to claim 2, characterized in that: The dust suction module includes a fixed seat, a mounting platform, a dust suction seat, a plurality of dust suction heads and a dust suction unit, the fixed seat is arranged on a first movable seat, the mounting platform is movably arranged on a guide box and connected to the fixed seat, the dust suction seat is arranged on the mounting platform, a plurality of dust suction heads are arranged on the dust suction seat, the dust suction unit is arranged between the fixed seat and the fixed sleeve and connects the upper cavity and the dust suction head, and when the fixed sleeve rotates relative to the first movable seat, the dust suction unit is controlled to work and the dust in the cabin is sucked into the first cavity.

4. The device for cleaning the hub inside the wind turbine cabin according to claim 3, characterized in that: The dust suction unit includes a dust suction pipe, a piston rod, a screw sleeve, a third gear and a gear ring, the gear ring is arranged on a fixed sleeve, the dust suction pipe is arranged on a fixed seat and an input hole and an output hole are arranged on the dust suction pipe, the input hole is connected with the dust suction head, the output hole is connected with the upper cavity, and a one-way valve is arranged in the input hole and the output hole, the third gear is movably arranged on the first movable seat and meshed with the gear ring, a reciprocating screw is movably arranged between the first movable seat and the dust suction pipe, the piston rod is movably arranged in the dust suction pipe and is threadedly matched with the reciprocating screw, and the reciprocating screw and the third gear are coaxially connected.

5. The wind turbine nacelle hub internal cleaning device according to claim 3, characterized in that: A plurality of the dust collector heads are hinged to the dust collector seat and a torsion spring is arranged at the hinge. An angle adjustment unit is arranged between the dust collector seat and the fixed sleeve. The angle adjustment unit is connected to the dust collector head and is used to adjust the angle between the dust collector head and the dust collector seat.

6. The device for cleaning the inside of the hub in a wind turbine cabin according to claim 5, characterized in that: The angle adjustment unit includes a second gear, a rack, a roller and a plurality of protrusions, wherein the plurality of protrusions are arranged on the outer wall of the guide box, the second gear is movably arranged on the dust collector seat and is coaxially connected to the dust collector head, the rack is movably arranged on the mounting platform and the two are elastically connected, the rack and the second gear are meshed, the roller is movably arranged on the rack, the roller and the outer wall of the guide box are slidably matched, and the protrusion is located on the moving path of the roller.

7. The device for cleaning the inside of the hub in a wind turbine cabin according to claim 6, characterized in that: The liquid spray module includes a connecting head, a spray rod, a sleeve, a rotating shaft and a first gear. The rotating shaft is movably arranged on the second movable seat. The sleeve is sleeved on the outer wall of the rotating shaft and is connected to the lower cavity. The first gear is movably arranged on the second movable seat and is coaxially connected to the rotating shaft. The connecting head is arranged at one end of the rotating shaft away from the second movable seat. The spray rod is arranged on the connecting head and is connected to the sleeve. The first gear is meshed with the gear ring.

8. The wind turbine nacelle hub internal cleaning device according to claim 1, characterized in that: The processing box is provided with an exhaust box, and a barrier net is provided in the exhaust box. The post-processing monitoring system includes fan blades, swing arms, pulling arms, lifting blocks, stepper motors, driving screws, extrusion plates, moving rods and monitoring components. The extrusion plate is movably arranged in the second cavity, the moving rod is movably arranged in the processing box and one end is connected to the extrusion plate, the driving screw is movably arranged between the processing box and the connecting frame, the stepper motor is arranged on the connecting frame and its output end is connected to the driving screw, the driving screw and the moving rod are threadedly matched, the fan blades are movably arranged in the exhaust box, the swing arm is movably arranged on the outer wall of the exhaust box and is coaxially connected to the fan blades, the lifting block is movably arranged on the exhaust box and is movably connected to the swing arm through the pulling arm, and the monitoring component is arranged on the processing box and connected to the lifting block, for monitoring the number of reciprocating motions of the lifting block and controlling the opening and closing of the solenoid valve and the stepper motor.

9. The device for cleaning the hub inside the wind turbine cabin according to claim 8, characterized in that: The monitoring assembly includes a conductive block, a detection strip, a resistor strip, a push strip, a monitoring seat, a first slot and a limiter. The monitoring seat is arranged on the processing box, the detection strip is movably arranged on the monitoring seat, the resistor strip is arranged on the detection strip, the conductive block is arranged on the monitoring seat and slidably cooperates with the resistor strip, the first slots are several in number and are equidistantly arranged on the detection strip, one end of the push strip is hinged to the lifting block and a torsion spring is arranged at the hinge, the push strip cooperates with the first slot, and the limiter is arranged between the detection strip and the monitoring seat to limit the unidirectional movement of the detection strip.

10. The device for cleaning the inside of the hub in a wind turbine cabin according to claim 9, characterized in that: The limiting member includes a second card slot, an electric telescopic rod and a telescopic card strip. The second card slots are multiple in number and are equidistantly arranged on one side of the detection strip. The telescopic card strip is movably arranged on the monitoring seat and cooperates with the second card slot. The electric telescopic rod is arranged on the monitoring seat and its movable end is connected to the telescopic card strip.

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