Fan variable-pitch motor hoisting tool and hoisting system

Abstract

The invention provides a fan variable-pitch motor hoisting tool and hoisting system, and relates to the technical field of wind power mechanical equipment, the fan variable-pitch motor hoisting tool comprises a mounting bracket, the mounting bracket is mounted on a fence of a fan cabin through a plurality of buckles, a vertical beam is fixedly mounted at the top of the mounting bracket, and a suspension arm is rotationally connected to the vertical beam; a locking cap is mounted at the top of the vertical beam, the mounting ring is slidably connected to the top of the suspension arm, the box body is fixedly mounted at the bottom of the mounting ring, and a hoisting mechanism and a lubricating mechanism are arranged in the box body. According to the fan variable-pitch motor hoisting tool, the mounting support is connected to a fence of a fan cabin through the buckles, the fan variable-pitch motor hoisting tool is conveniently hoisted, then the suspension arm is matched with the vertical beam and the hoisting structure to achieve disassembly and assembly of a variable-pitch motor, the lubricating mechanism smears lubricating oil on a steel wire rope, and therefore abrasion is reduced, and the service life of the fan variable-pitch motor hoisting tool is prolonged. And the hoisting tool is simple in structural design, time and labor are saved when maintenance personnel replace the variable pitch motor, and the applicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power mechanical equipment, and in particular to a wind turbine variable pitch motor hoisting tool and a hoisting system. Background Art

[0002] The variable pitch motor is a motor that can adjust the blade angle and is one of the key components of a wind turbine. Its main function is to drive the variable pitch mechanism of the wind turbine blades to adjust the blade pitch angle. By changing the pitch angle, the performance of the wind turbine at different wind speeds can be optimized, the utilization rate of wind energy can be improved, and the safe and stable operation of the wind turbine can be ensured. Therefore, in the field of wind power generation, the variable pitch motor is a key component for controlling the blade angle of the wind turbine. Its installation accuracy and stability directly affect the power generation efficiency and safety of the wind turbine.

[0003] At present, the fan does not have a hub cover when it leaves the factory. Maintenance personnel need to enter the fan hub from above the cabin. When the variable pitch motor needs to be replaced, it is difficult to carry the variable pitch motor from the cabin to the hub outside the cabin because the variable pitch motor weighs several hundred kilograms. As a result, it is time-consuming and laborious to replace the variable pitch motor, and the work intensity of the operator is high. At the same time, there is a lack of lubrication mechanism for the hoisting cable, which shortens the service life of the cable. Therefore, it is urgent to design a fan variable pitch motor hoisting tool and hoisting system to solve the above problems. Summary of the invention

[0004] The present invention provides a wind turbine variable pitch motor hoisting tool and a hoisting system, which are used to solve at least one of the problems raised by the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses a wind turbine variable pitch motor lifting tool, including a mounting bracket, which is installed on the fence of the wind turbine cabin through a number of clips, a vertical beam is fixedly installed on the top of the mounting bracket, a suspension arm is rotatably connected to the vertical beam, a locking cap is installed on the top of the vertical beam, a mounting ring is slidably connected to the top of the suspension arm, a box body is fixedly installed on the bottom of the mounting ring, and a lifting mechanism and a lubrication mechanism are arranged in the box body.

[0006] Preferably, a crossbeam is fixedly installed in the middle of the mounting bracket, and the bottom of the vertical beam passes through the top of the mounting bracket and is fixedly connected to the top of the crossbeam, and the bottom of the crossbeam contacts the top of the fence.

[0007] Preferably, the lifting mechanism includes a support plate, the bottom of the support plate is fixedly mounted on the bottom of the box body, one end of the drum is rotatably connected to the side wall of the box body, and the other end of the drum is fixedly mounted with a rotary joint, and the rotary joint is rotatably connected to the side wall of the support plate, the forward and reverse drive motor is fixedly mounted on the inner wall of the box body, and the output shaft of the forward and reverse drive motor is fixedly mounted with a drive shaft, one end of the drive shaft is rotated through the support plate and then fixedly connected to the rotary joint, the wire rope is fixedly connected to the drum, and the lower end of the wire rope is fixedly connected to a hook through a mounting block.

[0008] Preferably, it also includes a rope cloth assembly, which is arranged at the bottom of the box body, and the rope cloth assembly includes a driving motor, which is fixedly installed at the bottom of the box body, one end of the threaded rod rotates through the support plate and is fixedly connected to the output shaft of the driving motor, and the other end of the threaded rod is rotatably connected to the inner wall of the box body, the threaded sleeve is threadedly connected to the threaded rod, two guide wheels are symmetrically connected to the front side wall of the threaded sleeve, and the bottom of the threaded sleeve is slidably connected to the bottom of the box body, the two ends of the sliding rod are on the two side walls of the bottom opening of the box body, the guide rope roller is slidably connected to the sliding rod, and the lower end of the wire rope passes through the two guide wheels and the rope guide roller in sequence.

[0009] Preferably, it also includes a locking assembly, which is arranged on the side wall of the support plate, and the locking assembly includes a plurality of locking plates, which are arranged at intervals along the circumference of the rotary joint, and a fixed sleeve is fixedly installed on the side wall of the support plate, one end of the locking block is slidably connected to the bottom of the fixed sleeve, and one end of the locking block slides through the side wall of the fixed sleeve and contacts the locking plate, a spring is connected to the locking block, the fixed end of the electric telescopic rod is fixedly connected to the side wall of the support plate, the telescopic end of the electric telescopic rod is fixedly connected to a push rod, and the push rod slides through the top of the fixed sleeve and is fixedly connected to a wedge block, and the wedge block is slidably connected to the wedge surface of the other end of the locking block.

[0010] Preferably, the lubrication mechanism includes bevel gear 1, which is fixedly connected to the driving shaft, and the rotating shaft is rotatably connected to the top of the box body. The fixed plate is fixedly installed on the side wall of the support plate, and the lower end of the rotating shaft is fixedly installed with bevel gear 2 after rotating to pass through the fixed plate, and the bevel gear 1 and bevel gear 2 are meshed. The cam is fixedly installed on the rotating shaft, one end of the connecting rod is hinged on the cam away from the center, the guide rod is fixedly installed on the top of the box body, the application assembly is connected to the guide rod, and the liquid storage tank is fixedly installed on the top of the box body.

[0011] Preferably, the application assembly includes: a slider, which is slidably connected to the guide rod, the top of the mounting sleeve is fixedly mounted on the bottom of the slider, and the side wall of the mounting sleeve is hinged to the other end of the connecting rod, the upper end of the connecting rod is fixedly connected to the top inside the mounting sleeve through spring 2, and the top of the connecting rod is slidably connected to the inner wall of the mounting sleeve, the lower end of the connecting rod slides through the mounting sleeve and then fixedly connected to the brush, the oil inlet of the oil hose is connected to the oil outlet of the liquid storage tank, and the oil outlet of the oil hose passes through the top of the box and then is mounted on the side wall of the brush.

[0012] Preferably, the wind turbine variable pitch motor hoisting tool comprises any one of claims 1 to 7, characterized in that the hoisting system further comprises:

[0013] A lifting bracket, which is used to connect the equipment to be lifted. The lifting bracket is designed as a C-shaped structure, with an upper crossbar, a lower crossbar and a vertical bar connecting the two;

[0014] A lifting lug, arranged on the upper crossbar, for connecting a lifting hook;

[0015] A fixing clamp and an angle positioning tool, wherein the fixing clamp and the angle positioning tool are respectively arranged on the lower cross bar and are used to fix and adjust the position of the pitch motor;

[0016] A hydraulic push rod, the fixed end of which is connected to one end of the lower cross bar, and the telescopic end of which is connected to the angle positioning tooling, for adjusting the installation angle of the pitch motor;

[0017] A handle is arranged at the lower end of the vertical rod, and the handle is provided with anti-slip friction lines and a push rod control button. By pressing the push rod control button, the extension and retraction of the hydraulic push rod can be controlled.

[0018] Preferably, it also includes a lifting capacity detection device for detecting the wear state of the wire rope in the wind turbine variable pitch motor lifting tooling, and the lifting capacity detection device includes:

[0019] Photoelectric sensor, used to detect the rotation angle of the drum relative to the support plate in the wind turbine variable pitch motor lifting fixture;

[0020] Speed ​​sensor, used to detect the rotation speed of the drum in the wind turbine variable pitch motor hoisting tooling;

[0021] A controller and an alarm, wherein the controller is electrically connected to the photoelectric sensor, the speed sensor and the alarm, and the controller controls the alarm to work based on the photoelectric sensor and the speed sensor.

[0022] Preferably, the controller controls the alarm to work based on the photoelectric sensor and the speed sensor, including:

[0023] According to the formula and the detection values ​​of the photoelectric sensor and the speed sensor, the actual wear coefficient W of the wire rope in the hoisting mechanism of the wind turbine variable pitch motor hoisting tool during the hoisting operation is calculated. The controller compares the actual wear coefficient W of the wire rope in the hoisting mechanism of the wind turbine variable pitch motor hoisting tool during the hoisting operation with the preset range of the wire rope wear coefficient. When the actual wear coefficient W of the wire rope in the hoisting mechanism exceeds the preset range of the wire rope wear coefficient, the controller controls the alarm to sound an alarm:

[0024]

[0025] Among them, W is the actual wire rope wear coefficient in the hoisting mechanism of the wind turbine variable pitch motor hoisting tooling during the hoisting operation, F0 is the preload of the wire rope, E is the material coefficient of the wire rope, R1 is the radius of the drum, R2 is the radius of the wire rope, sin is the sine function, β is the angle between the wire rope and the normal tangent of the drum, f is the friction coefficient of the wire rope, θ is the detection value of the photoelectric sensor for the rotation angle of the drum relative to the support plate in the wind turbine variable pitch motor hoisting tooling, L is the length of the wire rope that is separated from the drum during the hoisting process, and v is the detection value of the speed sensor for the rotation speed of the drum in the wind turbine variable pitch motor hoisting tooling.

[0026] The invention provides a wind turbine variable pitch motor hoisting tool and hoisting system. Compared with the prior art, the invention has the following beneficial effects:

[0027] 1. The above-mentioned wind turbine pitch motor lifting fixture is fixedly installed on the fence of the wind turbine cabin through the provided mounting support and a number of clips, which is convenient for lifting the wind turbine pitch motor fixture. Then the suspension arm cooperates with the vertical beam and the lifting structure to lift the pitch motor. At the same time, the suspension arm rotates along the vertical beam to realize the convenient disassembly and assembly of the pitch motor from the wind turbine cabin. The lubrication mechanism applies lubricating oil to the wire rope, thereby reducing wear and increasing the service life of the wire rope. The lifting fixture has a simple structural design, which saves time and effort for maintenance personnel when replacing the pitch motor and has strong applicability.

[0028] 2. The above-mentioned hoisting system realizes the stable hoisting and angle adjustment of the variable pitch motor through the C-shaped hoisting bracket, lifting lugs, fixing clamps, angle positioning tooling, hydraulic push rods and handles. Among them, the design of the hydraulic push rod makes the adjustment of the installation angle easier, and the anti-slip friction pattern on the handle and the push rod control button improve the safety and convenience of operation; the system not only simplifies the installation process and improves the installation efficiency, but also ensures the stability and safety of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the structure of a wind turbine variable pitch motor hoisting tool provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the structure inside a box of a wind turbine variable pitch motor hoisting tool provided by an embodiment of the present invention;

[0032] Figure 3 for Figure 2 Schematic diagram of the local structure at point A in the middle.

[0033] Reference numerals:

[0034] 1. Mounting bracket; 2. Buckle; 3. Fence; 4. Vertical beam; 5. Suspension arm; 6. Locking cap; 7. Mounting ring; 8. Box; 81. Opening; 9. Lifting mechanism; 10. Lubricating mechanism; 11. Crossbeam; 12. Support plate; 13. Roller; 14. Rotary joint; 15. Forward and reverse drive motor; 16. Drive shaft; 17. Wire rope; 18. Mounting block; 19. Hook; 20. Drive motor; 21. Threaded rod; 22. Threaded sleeve; 23. Guide wheel; 24. Slide rod; 25, guide rope roller; 26, locking plate; 27, fixing sleeve; 28, locking block; 29, spring one; 30, electric telescopic rod; 31, push rod; 32, wedge block; 33, bevel gear one; 34, rotating shaft; 35, fixing plate; 36, bevel gear two; 37, cam; 38, connecting rod; 39, guide rod; 40, coating assembly; 41, liquid storage tank; 42, slider; 43, mounting sleeve; 44, connecting rod; 45, spring two; 46, brush; 47, oil delivery hose. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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] The present invention provides the following embodiments

[0037] Example 1

[0038] The embodiment of the present invention provides a wind turbine variable pitch motor hoisting tool, such as Figure 1-Figure 2 As shown, it includes a mounting bracket 1, which is mounted on a fence 3 of a wind turbine cabin through a plurality of clips 2, a vertical beam 4 is fixedly mounted on the top of the mounting bracket 1, a suspension arm 5 is rotatably connected to the vertical beam 4, a locking cap 6 is installed on the top of the vertical beam 4, a mounting ring 7 is slidably connected to the top of the suspension arm 5, a box body 8 is fixedly mounted on the bottom of the mounting ring 7, and a hoisting mechanism 9 and a lubrication mechanism 10 are arranged in the box body 8.

[0039] Preferably, a crossbeam 11 is fixedly installed in the middle of the mounting bracket 1, and the bottom of the vertical beam 4 passes through the top of the mounting bracket 1 and is fixedly connected to the top of the crossbeam 11, and the bottom of the crossbeam 11 contacts the top of the fence 3.

[0040] Preferably, the lifting mechanism 9 includes a support plate 12, the bottom of which is fixedly mounted on the bottom of the box body 8, one end of a drum 13 is rotatably connected to the side wall of the box body 8, and the other end of the drum 13 is fixedly mounted with a rotary joint 14, the rotary joint 14 is rotatably connected to the side wall of the support plate 12, a forward and reverse drive motor 15 is fixedly mounted on the inner wall of the box body 8, and a drive shaft 16 is fixedly mounted on the output shaft of the forward and reverse drive motor 15, one end of the drive shaft 16 is rotated through the support plate 12 and then fixedly connected to the rotary joint 14, a wire rope 17 is fixedly connected to the drum 13, and the lower end of the wire rope 17 is fixedly connected to a hook 19 through a mounting block 18.

[0041] Preferably, it also includes a rope cloth assembly, which is arranged at the bottom of the box body 8, and the rope cloth assembly includes a driving motor 20, and the driving motor 20 is fixedly installed at the bottom of the box body 8, one end of the threaded rod 21 rotates through the support plate 12 and is fixedly connected to the output shaft of the driving motor 20, and the other end of the threaded rod 21 is rotatably connected to the inner wall of the box body 8, the threaded sleeve 22 is threadedly connected to the threaded rod 21, two guide wheels 23 are symmetrically rotated and connected to the front side wall of the threaded sleeve 22, and the bottom of the threaded sleeve 22 is slidably connected to the bottom of the box body 8, the two ends of the sliding rod 24 are on the two side walls of the bottom opening 81 of the box body 8, the guide rope roller 25 is slidably connected to the sliding rod 24, and the lower end of the wire rope 17 passes through the two guide wheels 23 and the guide rope roller 25 in sequence.

[0042] Preferably, it also includes a locking assembly, which is arranged on the side wall of the support plate 12, and the locking assembly includes a plurality of locking plates 26, and the plurality of locking plates 26 are arranged at intervals along the circumference of the rotary joint 14. A fixing sleeve 27 is fixedly installed on the side wall of the support plate 12, one end of a locking block 28 is slidably connected to the bottom of the fixing sleeve 27, and one end of the locking block 28 slides through the side wall of the fixing sleeve 27 to contact the locking plate 26, a spring 29 is sleeved on the locking block 28, and the fixed end of the electric telescopic rod 30 is fixedly connected to the side wall of the support plate 12, and the telescopic end of the electric telescopic rod 30 is fixedly connected with a push rod 31, and the push rod 31 slides through the top of the fixing sleeve 27 and is fixedly connected with a wedge block 32, and the wedge block 32 is slidably connected to the wedge surface of the other end of the locking block 28.

[0043] The working principle and beneficial effects of the above technical solution are:

[0044] A wind turbine pitch motor lifting tooling of the present invention is fixedly installed on the fence 3 of the wind turbine cabin through the set installation bracket 1 and a plurality of buckles 2, which is convenient for lifting the wind turbine pitch motor tooling, and then the suspension arm 5 cooperates with the vertical beam 4 and the lifting structure to lift the pitch motor. Then the operator only needs to push the pitch motor lifted by the lifting mechanism, and the suspension arm 5 rotates horizontally along the vertical beam 4, so that the pitch motor can be conveniently disassembled and assembled from the inside of the wind turbine cabin. The lubrication mechanism 10 applies lubricating oil to the wire rope 17, thereby reducing wear and increasing the service life of the wire rope 17.

[0045] The above-mentioned lifting tooling is installed and fixed before the lifting operation. First, the tooling crossbeam 11 is installed on the top of the fence 3. The installation position needs to be close to the middle of the fence 3, and the vertical beam 4 is close to the direction of the cabin. Use a number of clips 2 to fix the installation bracket 1 and the fence 3; at the same time, before installing a number of clips 2, first fix one end of the clip 2 on the fence 3, and then connect it with the installation bracket 1, and tighten the clips 2 in turn. Each layer of the fence 3 is installed with a clip 2. When each clip 2 is fixed, it is necessary to add a gasket on the outside of the bolt to prevent the nut from not being tightened into place; after the crossbeam 11 and the installation bracket 1 are installed and tightened, install the suspension arm 5. After the suspension arm 5 is installed, the locking cap 6 is installed on the top of the vertical beam 4 to prevent the suspension arm 5 from falling off.

[0046] When the hoisting mechanism 9 is performing the hoisting operation, the forward and reverse driving motor 15 is set to start, driving the fixedly connected driving shaft 16 to rotate. One end of the driving shaft 16 rotates through the support plate 12 and is fixedly connected to the rotary joint 14. The other end of the drum 13 is fixedly installed with the rotary joint 14, so that the driving shaft 16 drives the drum 13 to rotate along the support plate 12 and the inner wall of the box body 8. The wire rope 17 is fixedly connected to the drum 13, and the lower end of the wire rope 17 is fixedly connected to the hook 19 through the mounting block 18. The wire rope 17 cooperates with the hook 19 to hoist the variable pitch motor as the drum 13 rotates. The forward and reverse rotation of the forward and reverse motor can realize the lifting and lowering of the variable pitch motor by the wire rope 17.

[0047] The above-mentioned rope cloth assembly is arranged at the bottom of the box body 8, and the rope cloth assembly includes a driving motor 20, and the driving motor 20 is fixedly installed at the bottom of the box body 8. One end of the threaded rod 21 rotates through the support plate 12 and is fixedly connected to the output shaft of the driving motor 20. When the hoisting mechanism 9 performs the hoisting operation, the positive and negative rotation of the driving motor 20 drives the threaded rod 21 to rotate along the inner wall of the box body 8, so that the threaded sleeve 22 threadedly connected to the threaded rod 21 slides along the bottom of the box body 8, and the two guide wheels 2 The two ends of the slide rod 24 are connected to the two side walls of the bottom opening 81 of the box body 8, and the guide rope roller 25 is slidably connected to the slide rod 24. At this time, the lower end of the wire rope 17 passes through the two guide wheels 23 and the guide rope roller 25 in sequence. As the threaded slide sleeve 22 moves left or right, the wire rope 17 can be evenly distributed when it is wound on the drum 13, avoiding the accumulation that causes the unstable hoisting of the wire rope 17 and the potential safety hazard. At the same time, the guide rope roller 25 can guide the wire rope 17 to avoid the wire rope 17 from running off.

[0048] The locking assembly is arranged on the side wall of the support plate 12. When the lifting mechanism 9 completes the lifting of the variable pitch motor from the inside of the wind turbine cabin and then transfers it, the telescopic end of the electric telescopic rod 30 drives the fixedly connected top rod 31 to move downward, so that the top rod 31 drives the wedge block 32 to move downward along the top of the fixed sleeve 27, and the wedge block 32 is slidably connected with the wedge surface of the other end of the locking block 28, so that one end of the locking block 28 is slidably connected along the bottom of the fixed sleeve 27, so that the locking block 28 is locked. One end slides through the side wall of the fixing sleeve 27 and contacts the locking plate 26, placing the locking block 28 between the locking plates 26, thereby preventing the roller 13 in the lifting mechanism 9 from suddenly rotating, causing the lifted pitch motor to fall quickly, thereby causing a safety hazard. A spring 29 is sleeved on the locking block 28, and at this time, the spring 29 is compressed. When the locking mechanism completes the locking of the lifting mechanism 9, the electric telescopic rod 30 only needs to be retracted, and the elastic force of the spring 29 drives the locking block 28 to reset.

[0049] Example 2

[0050] On the basis of Example 1, Figure 1-Figure 2 As shown, the lubrication mechanism 10 includes a bevel gear 1 33, which is fixedly connected to the drive shaft 16, a rotating shaft 34 is rotatably connected to the top inside the box body 8, a fixed plate 35 is fixedly installed on the side wall of the support plate 12, and a bevel gear 2 36 is fixedly installed on the lower end of the rotating shaft 34 after it rotates to pass through the fixed plate 35, the bevel gear 1 33 and the bevel gear 2 36 are meshed, a cam 37 is fixedly installed on the rotating shaft 34, one end of a connecting rod 38 is hinged on the cam 37 away from the center, a guide rod 39 is fixedly installed on the top inside the box body 8, a coating assembly 40 is connected to the guide rod 39, and a liquid storage tank 41 is fixedly installed on the top of the box body 8.

[0051] Preferably, the application component 40 includes: a slider 42, which is slidably connected to the guide rod 39, the top of the mounting sleeve 43 is fixedly mounted on the bottom of the slider 42, and the side wall of the mounting sleeve 43 is hinged to the other end of the connecting rod 38, the upper end of the connecting rod 44 is fixedly connected to the top inside the mounting sleeve 43 through a spring 2 45, and the top of the connecting rod 44 is slidably connected to the inner wall of the mounting sleeve 43, the lower end of the connecting rod 44 slides through the mounting sleeve 43 and then fixedly connected to the brush 46, the oil inlet of the oil delivery hose 47 is connected to the oil outlet of the liquid storage tank 41, and the oil outlet of the oil delivery hose 47 is mounted on the side wall of the brush 46 after passing through the top of the box body 8.

[0052] The working principle and beneficial effects of the above technical solution are:

[0053] The lubrication mechanism 10 provided above can apply lubricating oil to the wire rope 17 in the hoisting mechanism 9, and the lubrication mechanism 10 can be driven by the forward and reverse driving motor 15; first, the bevel gear 1 33 fixedly connected to the driving shaft 16 is rotated, and the meshing transmission of the bevel gear 1 33 and the bevel gear 2 36 drives the rotating shaft 34 fixedly connected to the bevel gear 2 36 to achieve synchronous rotation, so that the cam 37 fixedly connected to the rotating shaft 34 is rotated, and one end of the connecting rod 38 is hinged to the cam 37 away from the center, thereby driving the connecting rod 38 to rotate along the rotating shaft 34, and the mounting sleeve 43 hinged at the other end of the connecting rod 38 cooperates with the slider 42 on the guide The cam 37 and the connecting rod 38 drive the smearing assembly 40 to move left and right, and at the same time, the lubricating oil in the liquid storage tank 41 is transported to the coating assembly 40, and the brush 46 arranged on the coating assembly 40 applies the lubricating oil to the wire rope 17 on the drum 13. As the coating assembly 40 is driven by the cam 37 and the connecting rod 38, the left and right movement is achieved, which can ensure that the wire rope 17 wound on the drum 13 is evenly coated; secondly, the brush 46 is fixedly connected to the mounting sleeve 43 through the connecting rod 44 and the spring 45, and the brush 46 can provide a buffer when coating the wire rope 17, and at the same time, it can ensure that the brush 46 is in full contact with the wire rope 17 and avoid jamming during coating.

[0054] After the lubrication mechanism 10 applies lubricating oil to the steel wire rope 17, the lubricating oil can form an oil film on these contact surfaces, effectively reducing the friction coefficient, thereby reducing wear and increasing the service life of the steel wire rope 17; secondly, the rust inhibitor and preservative in the lubricating oil can effectively isolate these harmful substances and protect the steel wire rope 17 from corrosion; at the same time, the lubricant applied to the steel wire rope 17 can also serve as a buffer between the steel wire rope 17 and the pulley block and the drum 13, reducing the impact and wear caused by direct contact; and the steel wire rope 17 is composed of multiple steel wires, and good lubrication is required between these steel wires and the rope strands to reduce friction and wear. After the lubricating oil is applied, the grease can penetrate into the interior of the steel wire rope 17, lubricate the rope core, steel wire and each strand, and improve the flexibility and service life of the steel wire rope 17.

[0055] Example 3

[0056] On the basis of Embodiment 1 or 2, a hoisting system includes a wind turbine variable pitch motor hoisting tool according to any one of Claims 1 to 7, characterized in that the hoisting system further includes:

[0057] A lifting bracket, which is used to connect the equipment to be lifted. The lifting bracket is designed as a C-shaped structure, with an upper crossbar, a lower crossbar and a vertical bar connecting the two;

[0058] A lifting lug, arranged on the upper crossbar, for connecting a lifting hook;

[0059] A fixing clamp and an angle positioning tool, wherein the fixing clamp and the angle positioning tool are respectively arranged on the lower cross bar and are used to fix and adjust the position of the pitch motor;

[0060] A hydraulic push rod, the fixed end of which is connected to one end of the lower cross bar, and the telescopic end of which is connected to the angle positioning tooling, for adjusting the installation angle of the pitch motor;

[0061] A handle is arranged at the lower end of the vertical rod. The handle is provided with anti-skid friction patterns and a push rod control button. The extension and retraction of the hydraulic push rod can be controlled by pressing the push rod control button.

[0062] The working principle and beneficial effects of the above technical solution are:

[0063] When the above-mentioned lifting system is used for lifting operations, the fasteners at the lower ends of the fixing clamp and the angle positioning fixture are removed, and the variable pitch motor is fixed in the fixing clamp and the angle positioning fixture. Then, the lifting rope is passed through the lifting ear, and the variable pitch motor is lifted to the installation height. Then, the grip of the handle is held, and the push rod control button is pressed. The tilt angle of the variable pitch motor is adjusted by the extension and retraction of the hydraulic push rod. After adjusting the angle, the handle is held to fix the variable pitch motor in the predetermined position. The C-shaped lifting bracket, lifting ear, fixing clamp, angle positioning fixture, hydraulic push rod and handle structures provided in the lifting system realize stable lifting and angle adjustment of the variable pitch motor. Among them, the design of the hydraulic push rod makes the adjustment of the installation angle easier, and the anti-slip friction pattern on the handle and the push rod control button improve the safety and convenience of operation. The system not only simplifies the installation process and improves the installation efficiency, but also ensures the stability and safety of the installation.

[0064] At the same time, the lifting system improves installation efficiency and realizes fast and accurate lifting operations; the lifting bracket design ensures the stability of the variable pitch motor during the lifting process; the angle adjustment mechanism is equipped with an angle sensor to monitor the angle of the variable pitch motor in real time to ensure installation accuracy; the lifting ear assembly is designed with a safety lock to prevent the sling from accidentally falling off, reducing safety risks.

[0065] Example 4

[0066] On the basis of Example 3, it also includes a hoisting capacity detection device for detecting the wear state of the wire rope 17 in the wind turbine pitch motor hoisting tooling, and the hoisting capacity detection device includes:

[0067] Photoelectric sensor, used to detect the rotation angle of the drum 13 relative to the support plate 12 in the wind turbine variable pitch motor hoisting tooling;

[0068] A speed sensor, used to detect the rotation speed of the drum 13 in the wind turbine variable pitch motor hoisting tooling;

[0069] A controller and an alarm, wherein the controller is electrically connected to the photoelectric sensor, the speed sensor and the alarm, and the controller controls the alarm to work based on the photoelectric sensor and the speed sensor.

[0070] Preferably, the controller controls the alarm to work based on the photoelectric sensor and the speed sensor, including:

[0071] According to the formula and the detection values ​​of the photoelectric sensor and the speed sensor, the actual wear coefficient W of the wire rope 17 in the hoisting mechanism of the wind turbine variable pitch motor hoisting tool during the hoisting operation is calculated. The controller compares the actual wear coefficient W of the wire rope 17 in the hoisting mechanism of the wind turbine variable pitch motor hoisting tool during the hoisting operation with the preset range of the wear coefficient of the wire rope 17. When the actual wear coefficient W of the wire rope 17 in the hoisting mechanism exceeds the preset range of the wear coefficient of the wire rope 17, the controller controls the alarm to sound an alarm:

[0072]

[0073] Among them, W is the actual wear coefficient of the wire rope 17 in the hoisting mechanism of the wind turbine variable pitch motor hoisting tooling during the hoisting operation, F0 is the preload of the wire rope 17, E is the material coefficient of the wire rope 17 (usually taken as 0.85-1), R1 is the radius of the drum 13, R2 is the radius of the wire rope 17, sin is a sine function, β is the angle between the wire rope 17 and the normal tangent of the drum 13, f is the friction coefficient of the wire rope 17, θ is the detection value of the photoelectric sensor on the rotation angle of the drum 13 relative to the support plate 12 in the wind turbine variable pitch motor hoisting tooling, L is the length of the wire rope 17 separated from the drum 13 during the hoisting process, and v is the detection value of the speed sensor on the rotation speed of the drum 13 in the wind turbine variable pitch motor hoisting tooling.

[0074] The beneficial effects of the above technical scheme are: first, according to the formula and the detection values ​​of the photoelectric sensor and the speed sensor, the actual wear coefficient W of the wire rope 17 in the hoisting mechanism 9 during the hoisting operation of the wind turbine variable pitch motor hoisting tooling is calculated, and the calculation result is more accurate and reliable by comprehensively considering the preload force of the wire rope 17, the material coefficient of the wire rope 17, the radius of the drum 13, the radius of the wire rope 17, the angle between the wire rope 17 and the normal tangent of the drum 13, the friction coefficient of the wire rope 17, the rotation angle of the drum 13 relative to the support plate 12 in the wind turbine variable pitch motor hoisting tooling, the length of the wire rope 17 separated from the drum 13 during the hoisting process, and the rotation speed of the drum 13 in the wind turbine variable pitch motor hoisting tooling.

[0075] The controller controls the operation of the photoelectric sensor, the speed sensor and the alarm. If the actual wear coefficient W of the steel wire rope 17 in the hoisting mechanism 9 exceeds the preset wear coefficient range of the steel wire rope 17 during the hoisting operation of the current wind turbine variable pitch motor hoisting tool, the controller controls the alarm to sound an alarm, thereby reminding the staff to promptly check the steel wire rope 17 in the wind turbine variable pitch motor hoisting tool, and perform maintenance on the steel wire rope 17 in the wind turbine variable pitch motor hoisting tool according to the actual inspection results to maintain the use requirements of the wind turbine variable pitch motor hoisting tool when performing hoisting operations on the variable pitch motor. , while ensuring the stable operation reliability of the wire rope 17 in the wind turbine variable pitch motor hoisting tooling and improving the hoisting efficiency of the wind turbine variable pitch motor hoisting tooling, and effectively improving the service life of the wind turbine variable pitch motor hoisting tooling, further meeting the use requirements of the wind turbine variable pitch motor hoisting tooling for operation reliability and safety during hoisting operations, and monitoring the working status of the wire rope 17 during the hoisting operation in real time, not only the reliability of the wind turbine variable pitch motor hoisting tooling during hoisting operations is increased, but also it is ensured that when the wire rope 17 fails, it can be quickly discovered and repaired in time.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind turbine variable pitch motor hoisting tool, characterized in that: The invention comprises a mounting bracket (1), wherein the mounting bracket (1) is mounted on a fence (3) of a wind turbine cabin via a plurality of buckles (2), a vertical beam (4) is fixedly mounted on the top of the mounting bracket (1), a suspension arm (5) is rotatably connected to the vertical beam (4), a locking cap (6) is mounted on the top of the vertical beam (4), a mounting ring (7) is slidably connected to the top of the suspension arm (5), a box body (8) is fixedly mounted on the bottom of the mounting ring (7), and a hoisting mechanism (9) and a lubrication mechanism (10) are arranged inside the box body (8).

2. A wind turbine variable pitch motor hoisting tool according to claim 1, characterized in that: A crossbeam (11) is fixedly mounted in the middle of the mounting bracket (1), and the bottom of the vertical beam (4) passes through the top of the mounting bracket (1) and is fixedly connected to the top of the crossbeam (11), and the bottom of the crossbeam (11) contacts the top of the fence (3).

3. A wind turbine variable pitch motor hoisting tool as claimed in claim 2, characterized in that: The hoisting mechanism (9) comprises a support plate (12), the bottom of which is fixedly mounted on the bottom of the box (8), one end of a drum (13) is rotatably connected to the side wall of the box (8), and the other end of the drum (13) is fixedly mounted with a rotary joint (14), the rotary joint (14) is rotatably connected to the side wall of the support plate (12), a forward and reverse drive motor (15) is fixedly mounted on the inner side wall of the box (8), and the output shaft of the forward and reverse drive motor (15) is fixedly mounted with a drive shaft (16), one end of the drive shaft (16) is rotatably passed through the support plate (12) and then fixedly connected to the rotary joint (14), a steel wire rope (17) is fixedly connected to the drum (13), and the lower end of the steel wire rope (17) is fixedly connected to a hook (19) through a mounting block (18).

4. A wind turbine variable pitch motor hoisting tool as claimed in claim 3, characterized in that: The invention also comprises a rope-laying assembly, which is arranged at the bottom of the box (8). The rope-laying assembly comprises a driving motor (20), which is fixedly mounted at the bottom of the box (8). One end of a threaded rod (21) rotates through the support plate (12) and is fixedly connected to the output shaft of the driving motor (20), and the other end of the threaded rod (21) is rotatably connected to the inner wall of the box (8). A threaded sleeve (22) is threadedly connected to the threaded rod (21). Two guide wheels (23) are symmetrically rotatably connected to the front side wall of the threaded sleeve (22), and the bottom of the threaded sleeve (22) is slidably connected to the bottom of the box (8). The two ends of the slide rod (24) are on the two side walls of the bottom opening (81) of the box (8), and the guide rope roller (25) is slidably connected to the slide rod (24), and the lower end of the steel wire rope (17) passes through the two guide wheels (23) and the guide rope roller (25) in sequence.

5. The wind turbine variable pitch motor hoisting tool according to claim 3, characterized in that: The invention also comprises a locking assembly, wherein the locking assembly is arranged on the side wall of the support plate (12), the locking assembly comprises a plurality of locking plates (26), the plurality of locking plates (26) are arranged at intervals along the circumference of the rotary joint (14), a fixing sleeve (27) is fixedly mounted on the side wall of the support plate (12), one end of the locking block (28) is slidably connected to the bottom of the fixing sleeve (27), and one end of the locking block (28) slides through the side wall of the fixing sleeve (27). The wall is in contact with the locking plate (26), a spring (29) is sleeved on the locking block (28), the fixed end of the electric telescopic rod (30) is fixedly connected to the side wall of the support plate (12), the telescopic end of the electric telescopic rod (30) is fixedly connected to a push rod (31), the push rod (31) slides through the top of the fixing sleeve (27) and is fixedly connected to a wedge block (32), and the wedge block (32) is slidably connected to the wedge surface of the other end of the locking block (28).

6. A wind turbine variable pitch motor hoisting tool as claimed in claim 1, characterized in that: The lubricating mechanism (10) comprises a bevel gear 1 (33), wherein the bevel gear 1 (33) is fixedly connected to the driving shaft (16), a rotating shaft (34) is rotatably connected to the top of the housing (8), a fixing plate (35) is fixedly mounted on the side wall of the supporting plate (12), and a bevel gear 2 (36) is fixedly mounted on the lower end of the rotating shaft (34) after rotating to pass through the fixing plate (35), the bevel gear 1 (33) and the bevel gear 2 (36) are meshed, a cam (37) is fixedly mounted on the rotating shaft (34), one end of a connecting rod (38) is hinged to a position away from the center of the cam (37), a guide rod (39) is fixedly mounted on the top of the housing (8), a smearing assembly (40) is connected to the guide rod (39), and a liquid storage tank (41) is fixedly mounted on the top of the housing (8).

7. A wind turbine variable pitch motor hoisting tool as claimed in claim 6, characterized in that: The smearing assembly (40) comprises: a slider (42), the slider (42) is slidably connected to the guide rod (39), the top of the mounting sleeve (43) is fixedly mounted on the bottom of the slider (42), and the side wall of the mounting sleeve (43) is hinged to the other end of the connecting rod (38), the upper end of the connecting rod (44) is fixedly connected to the top inside the mounting sleeve (43) through a second spring (45), and the top of the connecting rod (44) is slidably connected to the inner wall of the mounting sleeve (43), the lower end of the connecting rod (44) slides through the mounting sleeve (43) and is fixedly connected to the brush (46), the oil inlet of the oil delivery hose (47) is connected to the oil outlet of the liquid storage tank (41), and the oil outlet of the oil delivery hose (47) penetrates the top of the box body (8) and is mounted on the side wall of the brush (46).

8. A hoisting system, comprising a wind turbine variable pitch motor hoisting tool as claimed in any one of claims 1 to 7, characterized in that: The hoisting system also includes: A lifting bracket, which is used to connect the equipment to be lifted. The lifting bracket is designed as a C-shaped structure, with an upper crossbar, a lower crossbar and a vertical bar connecting the two; A lifting lug, arranged on the upper crossbar, for connecting a lifting hook; A fixing clamp and an angle positioning tool, wherein the fixing clamp and the angle positioning tool are respectively arranged on the lower cross bar and are used to fix and adjust the position of the pitch motor; A hydraulic push rod, the fixed end of which is connected to one end of the lower cross bar, and the telescopic end of which is connected to the angle positioning tooling, for adjusting the installation angle of the pitch motor; A handle is arranged at the lower end of the vertical rod. The handle is provided with anti-skid friction patterns and a push rod control button. The extension and retraction of the hydraulic push rod can be controlled by pressing the push rod control button.

9. A hoisting system according to claim 8, characterized in that: It also includes a lifting capacity detection device for detecting the wear state of a steel wire rope (17) in a lifting tool for a wind turbine variable pitch motor, wherein the lifting capacity detection device includes: A photoelectric sensor for detecting the rotation angle of a roller (13) relative to a support plate (12) in a wind turbine variable pitch motor hoisting tooling; A speed sensor for detecting the rotation speed of a drum (13) in a wind turbine variable pitch motor hoisting tool; A controller and an alarm, wherein the controller is electrically connected to the photoelectric sensor, the speed sensor and the alarm, and the controller controls the alarm to work based on the photoelectric sensor and the speed sensor.

10. A hoisting system according to claim 9, characterized in that: The controller controls the alarm to work based on the photoelectric sensor and the speed sensor, including: According to the formula and the detection values ​​of the photoelectric sensor and the speed sensor, the actual wear coefficient W of the steel wire rope (17) in the hoisting mechanism of the wind turbine variable pitch motor hoisting tool during the hoisting operation is calculated. The controller compares the actual wear coefficient W of the steel wire rope (17) in the hoisting mechanism of the wind turbine variable pitch motor hoisting tool during the hoisting operation with a preset range of wear coefficients of the steel wire rope (17). When the actual wear coefficient W of the steel wire rope (17) in the hoisting mechanism exceeds the preset range of wear coefficients of the steel wire rope (17), the controller controls the alarm to sound an alarm: Wherein, W is the actual wear coefficient of the steel wire rope (17) in the hoisting mechanism during the hoisting operation of the wind turbine variable pitch motor hoisting tool, F0 is the preload of the steel wire rope (17), E is the material coefficient of the steel wire rope (17), R1 is the radius of the drum (13), R2 is the radius of the steel wire rope (17), sin is a sine function, β is the angle between the steel wire rope (17) and the normal tangent of the drum (13), f is the friction coefficient of the steel wire rope (17), θ is the detection value of the photoelectric sensor for the rotation angle of the drum (13) relative to the support plate (12) in the wind turbine variable pitch motor hoisting tool, L is the length of the steel wire rope (17) separated from the drum (13) during the hoisting process, and v is the detection value of the speed sensor for the rotation speed of the drum (13) in the wind turbine variable pitch motor hoisting tool.

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