CN113942027A

CN113942027A - Retractable fan blade maintains device

Info

Publication number: CN113942027A
Application number: CN202111421865.1A
Authority: CN
Inventors: 何永玲; 胡文睿; 韩星晖; 于新青
Original assignee: Beibu Gulf University
Current assignee: Beibu Gulf University
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-01-18

Abstract

The invention discloses a retractable fan blade maintenance device, which comprises: the bottom of the base is provided with a moving device; the base can stretch out and draw back along the left and right directions; the grinding mechanism is arranged at the front part of the base and is used for grinding the blade; the bottom surface of the base is provided with the sucker; the mechanical arms are mounted on the left side and the right side of the top surface of the base, and a mechanical claw is arranged at the free end of each mechanical arm; the cleaning brushes are mounted on the left side and the right side of the bottom surface of the base, and each cleaning brush can move left and right; and the control device is arranged on the base and used for controlling the work of the maintenance device. The maintenance device disclosed by the invention is used for cleaning and maintaining the fan blade, and can replace manual operation with machine operation, thereby reducing the safety risk of maintenance personnel in high-altitude maintenance work and improving the safety performance and the working efficiency.

Description

Retractable fan blade maintains device

Technical Field

The invention relates to the technical field of fan blade maintenance equipment, in particular to a retractable fan blade maintenance device.

Background

Wind power generation, one of the main forces of new energy, has been continuously and highly developed in recent years. With the increasing scale of wind power plants in China, the problem of operation and maintenance of the wind turbine is gradually highlighted. Since wind turbines are subjected to harsh environments and need to operate all the day long, various media on the blades are damaged a lot after a period of use, thereby affecting the generating efficiency of the wind turbine, and especially, the front and rear edges of the blades are easy to generate a boundary consisting of insects and dirt. At present, the blade maintenance device is in the in-service use, because the ductility of fan blade makes the maintenance device hardly effectively cover whole blade.

Disclosure of Invention

The invention aims to provide a retractable fan blade maintenance device, so that the defect that the existing fan blade is difficult to clean is overcome.

In order to achieve the above object, the present invention provides a retractable fan blade maintenance device, including: the bottom of the base is provided with a moving device; the base can stretch out and draw back along the left and right directions; the grinding mechanism is arranged at the front part of the base and is used for grinding the blade; the bottom surface of the base is provided with the sucker; the mechanical arms are mounted on the left side and the right side of the top surface of the base, and a mechanical claw is arranged at the free end of each mechanical arm; the cleaning brushes are mounted on the left side and the right side of the bottom surface of the base, and each cleaning brush can move left and right; and the control device is arranged on the base and used for controlling the work of the maintenance device.

Preferably, in the above technical scheme, the base includes two bottom plates that are distributed at intervals from left to right, and the two bottom plates are connected through a scissor-fork type telescopic mechanism.

Preferably, in the above technical solution, the moving device includes four rollers and a moving motor, four rollers are disposed at the bottom of the base and distributed in a rectangular shape, and each roller is connected to one moving motor.

Preferably, in the above technical solution, a partition plate is installed at an outer side of each of the moving motors.

Preferably, in the above technical scheme, the grinding mechanism includes grinding wheels and grinding motors, two grinding wheels are arranged on the front portion of the base at intervals, each grinding wheel is connected with the base through a connecting frame, and each grinding wheel is connected with one grinding motor.

Preferably, in the above technical solution, each of the robot arms includes: a turntable rotatably mounted on a top surface of the base, the turntable being driven to rotate by a first rotating motor; the lower end of the first connecting rod is connected with the rotary disc; the inner end of the second connecting rod is hinged with the upper end of the first connecting rod in a mode of being capable of swinging up and down, and the second connecting rod is driven by a hydraulic cylinder to swing up and down; the inner end of the mechanical claw is rotatably connected with the outer end of the second connecting rod through a connecting piece, and the mechanical claw is driven to rotate through a second rotating motor.

Preferably, in the above technical scheme, the gripper includes two clamping parts, two the clamping parts set up relatively, every the inner of clamping part through the pivot with the connecting piece is rotated and is connected, two the pivot carries out relative rotation through the drive of third rotation motor.

Preferably, in the above technical scheme, the top of each cleaning brush is provided with at least two sliding grooves arranged at intervals in the front and back direction, the bottom surface of the base is provided with left and right guide sliding rails at positions corresponding to the sliding grooves, and each cleaning brush is driven by the sliding device to slide left and right.

Preferably, among the above-mentioned technical scheme, still include the water storage box, the water storage box install in the rear portion of base, the water storage box gives respectively through the pipeline the cleaning brush with the wheel water supply polishes, be equipped with the water pump on the pipeline.

Preferably, in the above technical scheme, the control device includes a controller, a camera and a terminal device, the controller and the camera are both mounted on the base, and the camera, the moving device, the polishing mechanism, the suction cup, the mechanical arm and the cleaning brush are all in data connection with the controller; the controller is in wireless connection with the terminal equipment.

Compared with the prior art, the invention has the following beneficial effects:

1. the base of the invention can stretch out and draw back to cover the whole surface of the fan blade completely, thus improving the cleaning comprehensiveness;

2. the polishing mechanism can polish the defective area of the blade and maintain the blade;

3. the mechanical arm is arranged on the base, and can clamp the blade, maintain the stability of the whole maintenance device, clean the edge of the maintenance blade and clean the attached dirt at the thinner blade tip part of the blade under the action of the mechanical arm and the mechanical claw;

4. the cleaning brush can move relatively and move repeatedly to clean the main body part of the blade, so that a good cleaning effect is achieved;

5. the fan blade cleaning and maintaining device adopts the maintaining device to clean and maintain the fan blade, can replace manual operation with machine operation, reduces the safety risk of maintenance personnel in high-altitude maintenance work, and can improve the safety performance and the working efficiency.

Drawings

Fig. 1 is a schematic three-dimensional structure of a retractable fan blade maintenance device according to the present invention.

Fig. 2 is a schematic three-dimensional structure from the bottom perspective of fig. 1, according to the present invention.

Fig. 3 is a schematic structural view of a mechanical jaw connection according to the present invention.

Fig. 4 is a schematic view of the structure of a cleaning brush according to the present invention.

Description of the main reference numerals:

1-base, 2-controller, 3-camera, 4-grinding wheel, 5-grinding motor, 6-connecting frame, 7-rotary table, 8-first connecting rod, 9-hydraulic cylinder, 10-second connecting rod, 11-connecting piece, 12-mechanical claw, 1201-rotating shaft, 13-cleaning brush, 1301-sliding groove, 14-roller, 15-suction cup, 16-water storage tank, 17-scissor type telescopic mechanism, 18-moving motor, 19-isolation plate and 20-sliding rail.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 to 4 show a schematic structural diagram of a retractable fan blade maintenance device according to a preferred embodiment of the present invention, which includes a base 1, a grinding mechanism, a suction cup 15, a mechanical arm, a cleaning brush 13 and a control device. Referring to fig. 1 to 4, a moving device is disposed at the bottom of the base 1 to facilitate the movement of the base 1. Base 1 can be followed left right direction and stretch out and draw back to cover whole fan blade surface comprehensively, improve clear comprehensive. The grinding mechanism is arranged at the front part of the base 1 and used for grinding the blades, so that the defect areas of the blades are ground, and the blades are maintained. The bottom surface of the base 1 is provided with a sucker 15, and the sucker 15 realizes the attachment, adsorption and separation on the blade by controlling the vacuum state of air in the cavity, so that the whole maintenance device can be fixed on the blade for cleaning; after cleaning, the suction of the suction cup 15 is released, so that the movement of the maintenance device can be facilitated. The left and right sides of the top surface of the base 1 are provided with mechanical arms, the free end of each mechanical arm is provided with a mechanical claw 12, the mechanical arms and the mechanical claws 12 can clamp the blades, the stability of the whole maintenance device is maintained, the edges of the blades are maintained in a cleaning mode, and the attached dirt of the blades can be cleaned at the thinner blade tip parts of the blades. Cleaning brushes 13 are installed on the left side and the right side of the bottom surface of the base 1, each cleaning brush 13 can move left and right and repeatedly move to clean the main body part of the blade, and a good cleaning effect can be achieved. The control device is arranged on the base 1 and used for controlling the work of the maintenance device. The maintenance device disclosed by the invention is used for cleaning and maintaining the fan blade, and can replace manual operation with machine operation, thereby reducing the safety risk of maintenance personnel in high-altitude maintenance work and improving the safety performance and the working efficiency.

Referring to fig. 1 and 2, the base 1 may be driven to extend and retract left and right by using a hydraulic cylinder, a lead screw nut, or a scissor-type telescopic mechanism 17, and the size of the bottom surface of the base 1 in the left and right directions is adjusted, so that the base is suitable for blades of different sizes. Preferably, base 1 includes two bottom plates of controlling interval distribution, connects through scissor telescopic machanism 17 between two bottom plates, drives two bottom plates through scissor telescopic machanism 17 and moves about to the size of adjustment base 1.

Referring to fig. 1 and 2, the moving device may be a crawler-type structure, and may also be a roller 14, and in order to facilitate cleaning of the blade, preferably, the moving device includes a roller 14 and a moving motor 18, the bottom of the base 1 is provided with four rollers 14 distributed in a rectangular shape, each roller 14 is connected to one moving motor 18, and by adopting the roller structure, a sufficient cleaning space can be reserved for the cleaning brush 13, and the movement of the maintenance device can be controlled conveniently. Wherein, in order to adapt to the telescopic operation of the base 1, two rollers 14 are arranged on each bottom plate at intervals.

Referring to fig. 2, preferably, a partition plate 19 is installed at an outer side of each moving motor 18 to prevent stains cleaned by the cleaning brush 13 from splashing on the moving motor 18, and to ensure that the moving motor 18 can work normally.

Referring to fig. 1 and 2, preferably, the grinding mechanism comprises grinding wheels 4 and grinding motors 5, two grinding wheels 4 are arranged at the front part of the base 1 and are distributed at intervals left and right, each grinding wheel 4 is connected with the base 1 through a connecting frame 6, each grinding wheel 4 is connected with one grinding motor 5, the grinding motors 5 are preferably installed on the base 1, and the grinding motors 5 are connected with the rotating shafts of the corresponding grinding wheels 4 through transmission mechanisms. Wherein, a grinding wheel 4 is arranged at the front side of each bottom plate, which is convenient for the grinding operation of the blades.

Referring to fig. 1 and 2, each robot arm is preferably mounted on a base plate in order to facilitate the gripping operation of the robot arms. Wherein each robot arm comprises a turntable 7, a first link 8 and a second link 10. The turntable 7 is rotatably mounted on the top surface of the base 1, and the turntable 7 is driven to rotate by a first rotating motor. The lower end of the first connecting rod 8 is connected with the rotary table 7; the inner end of the second connecting rod 10 is hinged to the upper end of the first connecting rod 8 in a mode of swinging up and down, the second connecting rod 10 is driven by the hydraulic cylinder 9 to swing up and down, the lower end of the hydraulic cylinder 9 is hinged to the rotary table 7, the upper end of the hydraulic cylinder 9 is connected with the second connecting rod 10, and the second connecting rod 10 is driven by the hydraulic cylinder 9 to swing up and down. The inner end of the gripper 12 is rotatably connected to the outer end of the second link 10 via a connecting member 11, and the gripper 12 is driven to rotate by a second rotating motor so that the gripper 12 can rotate around the second link 10. The attitude of the gripper 12 can be adjusted by the action of the turntable 7, the first link 8, the second link 10 and the link 11, enabling it to be clamped on the edge of the blade.

Referring to fig. 3, the gripper 12 may be driven by a hydraulic cylinder or a motor to open or close. Preferably, the gripper 12 includes two clamping portions, the two clamping portions are disposed opposite to each other, the inner end of each clamping portion is rotatably connected to the connecting member 11 through a rotating shaft 1201, the two rotating shafts 1201 are driven by a third rotating motor to rotate relatively, that is, the third rotating motor can drive the two rotating shafts 1201 to rotate relatively synchronously through a transmission mechanism, and the transmission mechanism can be a gear transmission mechanism.

Referring to fig. 1, 2 and 4, preferably, the top of each cleaning brush 13 is provided with at least two sliding grooves 1301 arranged at intervals in a front-back direction, the bottom surface of the base 1 is provided with a left-right guiding sliding rail 20 at a position corresponding to each sliding groove 1301, so that the sliding grooves 1301 can slide left and right along the guiding rails 20, and each cleaning brush 13 is driven by a sliding device to slide left and right, wherein the sliding device can be a screw-nut mechanism, a gear-rack structure, a guiding rail-roller structure or the like.

Referring to fig. 1 and 2, preferably, the maintenance device further includes a water tank 16 for storing cleaning water, the water tank 16 being installed at the rear portion of the base 1, the water tank 16 supplying water to the cleaning brush 13 and the grinding wheel 4 through pipes, respectively, to enhance the grinding effect and the cleaning effect, and a water pump being provided on the pipes to pump the water in the water tank 16 to the grinding wheel 4 and the cleaning brush 13.

Referring to fig. 1 and 2, preferably, the control device includes a controller 2, a camera 3 and a terminal device, the controller 2 and the camera 3 are both installed on the base 1, and the camera 3 is installed on the front side of the base, the camera 3, the mobile motor 18 of the mobile device, the scissor type telescopic mechanism 17, the grinding motor 5 of the grinding mechanism, the suction cup 15, each driving device of the mechanical arm, the sliding device of the cleaning brush 13, the water pump and other devices are all in data connection with the controller 2, the data connection may be a wired connection or a wireless connection, and a suitable connection mode may be selected as required. The camera 3 can acquire information on the blade and transmit the information to the controller 2, and the controller 2 can control the operation of the moving device, the polishing mechanism, the suction cup 15, the robot arm, the cleaning brush 13, and the like on the maintenance device according to the information. The controller 2 is in wireless connection with terminal equipment, and the terminal equipment can be mobile phones or computers and the like, so that remote monitoring can be conveniently carried out by workers.

When the maintenance device is used, when the maintenance device moves on the blade, the mechanical claw 12 is kept in a blade clamping state, the suction of the suction disc 15 is released, the base 1 is moved through the moving device, and meanwhile, the mechanical arm is driven to rotate; moving the maintenance device while keeping the mechanical claw 12 clamping the blade, and avoiding the maintenance device falling; after the maintenance device moves to the extreme position, the suction disc 15 is driven to suck, meanwhile, the movement of the moving device is stopped, the clamping state of the mechanical claw 12 is released, the mechanical arm is rotated forwards, and the mechanical claw 12 is clamped to the edge of the front blade; the whole maintenance device can be moved forwards by circulating the steps. In the maintenance process, the camera 3 can identify a defect area of the blade, the controller 2 controls the maintenance device to move to the defect area of the blade, and the defect area is subjected to maintenance operations such as grinding by the grinding wheel 4, cleaning by the cleaning brush 13, cleaning of the edge part of the blade by the mechanical claw 12 and the like; during cleaning, the suction cup 15 attached to the bottom surface of the base 1 can be attracted to the blade during maintenance of the device, and the device is kept stable without relative movement. The maintenance device is adopted to clean and maintain the blades, and the safety performance and the working efficiency can be improved.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A retractable fan blade maintenance device, comprising:

the bottom of the base is provided with a moving device; the base can stretch out and draw back along the left and right directions;

the grinding mechanism is arranged at the front part of the base and is used for grinding the blade;

the bottom surface of the base is provided with the sucker;

the mechanical arms are mounted on the left side and the right side of the top surface of the base, and a mechanical claw is arranged at the free end of each mechanical arm;

the cleaning brushes are mounted on the left side and the right side of the bottom surface of the base, and each cleaning brush can move left and right; and

and the control device is arranged on the base and used for controlling the work of the maintenance device.

2. The retractable fan blade maintenance device of claim 1, wherein the base comprises two bottom plates spaced apart from each other at right and left sides, and the two bottom plates are connected by a scissor type retractable mechanism.

3. The retractable fan blade maintenance device of claim 1, wherein the moving device comprises four rollers and a moving motor, the four rollers are arranged at the bottom of the base in a rectangular shape, and each roller is connected with one moving motor.

4. The retractable fan blade maintenance device of claim 3, wherein an isolation plate is installed at an outer side of each of the moving motors.

5. The retractable fan blade maintenance device of claim 1, wherein said grinding mechanism comprises a grinding wheel and a grinding motor, said front portion of said base is provided with two grinding wheels spaced apart from each other, each of said grinding wheels is connected to said base by a connecting frame, and each of said grinding wheels is connected to one of said grinding motors.

6. The retractable fan blade maintenance device of claim 1, wherein each of said robotic arms comprises:

a turntable rotatably mounted on a top surface of the base, the turntable being driven to rotate by a first rotating motor;

the lower end of the first connecting rod is connected with the rotary disc; and

the inner end of the second connecting rod is hinged with the upper end of the first connecting rod in a mode of being capable of swinging up and down, and the second connecting rod is driven by a hydraulic cylinder to swing up and down; the inner end of the mechanical claw is rotatably connected with the outer end of the second connecting rod through a connecting piece, and the mechanical claw is driven to rotate through a second rotating motor.

7. The retractable fan blade maintenance device of claim 6, wherein the gripper comprises two clamping portions, the two clamping portions are disposed opposite to each other, the inner end of each clamping portion is rotatably connected to the connecting member through a rotating shaft, and the two rotating shafts are driven by a third rotating motor to rotate relatively.

8. The retractable fan blade maintenance device according to claim 1, wherein the top of each cleaning brush is provided with at least two sliding grooves arranged at intervals in the front-back direction, the bottom surface of the base is provided with left-right guiding sliding rails at positions corresponding to the sliding grooves, and each cleaning brush is driven by a sliding device to slide left and right.

9. The retractable fan blade maintenance device of claim 1, further comprising a water storage tank mounted to the rear portion of the base, the water storage tank supplying water to the cleaning brush and the grinding wheel via pipes, the pipes being provided with water pumps.

10. The retractable fan blade maintenance device according to claim 1, wherein the control device comprises a controller, a camera and a terminal device, the controller and the camera are mounted on the base, and the camera, the moving device, the grinding mechanism, the suction cup, the mechanical arm and the cleaning brush are in data connection with the controller; the controller is in wireless connection with the terminal equipment.