Scissor type single-blade lifting appliance system for hectometer high-altitude wind-resistant operation
The scissor-type single-blade lifting system solves the problems of heavy weight, small opening, and limited pitch angle of traditional lifting devices by combining clamping components and anti-sway components, thus achieving efficient and safe blade installation at a height of 100 meters.
Patent Information
- Application Number
- CN202511259492.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-04
- Publication Date
- 2025-11-18
AI Technical Summary
Traditional lifting devices are too heavy, have small clamp openings, and limited pitch rotation angles, resulting in low blade unhooking efficiency and easy damage. High-altitude wind loads can cause blade swaying, posing safety risks and high costs.
The system employs a scissor-type single-blade spreader system, which includes a clamp assembly, an anti-sway assembly, and a counterweight assembly. The clamp assembly holds the blade, the anti-sway assembly controls the balance force of the wind ropes, the counterweight assembly provides stability, and a hydraulic cylinder is used to achieve pitch control and weight reduction.
It improves wind resistance stability at a height of 100 meters, reduces the risk of blade swaying, shortens operation time, reduces costs and safety risks, and improves installation efficiency.
Smart Images
Figure CN120964602A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of wind power generation equipment installation, in particular to a scissor type single-blade lifting tool system for anti-wind operation at a height of hundreds of meters. BACKGROUND
[0002] The megawatt level lifting of offshore wind turbines results in an increase in the weight of the blades (65-ton blades need to be hoisted at present), and the self-weight of the traditional C-shaped clamp lifting tool is too large (generally more than 40 tons), which forces the floating crane to have a higher load capacity, significantly increasing the cost. At the same time, the existing lifting tool has a small opening degree of the clamp and a limited rotation angle of the variable pitch, resulting in low unhooking efficiency of the blade and easy damage.
[0003] Therefore, there is an urgent need for a scissor type single-blade lifting tool system for anti-wind operation at a height of hundreds of meters, which can effectively avoid the risk of blade shaking caused by high-altitude wind load and shorten the operation time by improving the anti-wind stability at a height of hundreds of meters. SUMMARY
[0004] The purpose of the present application is to provide a scissor type single-blade lifting tool system for anti-wind operation at a height of hundreds of meters to solve the problems existing in the prior art.
[0005] To achieve the above purpose, the present application provides the following solution: a scissor type single-blade lifting tool system for anti-wind operation at a height of hundreds of meters, comprising a beam platform, the bottom of the beam platform is symmetrically provided with a clamp assembly for clamping the blade, the top center of the beam platform is provided with a lifting arm assembly for connecting with the hook of a hoist crane, the two sides of the lifting arm assembly are respectively provided with an anti-sway assembly for preventing the beam platform from swaying, the anti-sway assembly and the lifting arm assembly are respectively provided with a counterweight assembly, and the counterweight assembly is installed on the beam platform; the anti-sway assembly is connected with the lifting arm of the hoist crane through a wind rope, and the balance force of the wind rope is controlled through the anti-sway assembly to prevent the blade from swaying caused by high-altitude wind load.
[0006] Preferably, the clamp assembly comprises a clamp body, one end of the clamp body is installed on the beam platform, and the other end of the clamp body is rotatably connected with the middle part of the upper clamp arm and the middle part of the lower clamp arm through a clamp shaft.
[0007] Preferably, the upper clamp arm and the lower clamp arm are arranged in an X shape.
[0008] Preferably, one end of the upper and lower clamping arms is connected by a clamping drive oil cylinder.
[0009] Preferably, an upper clamping jaw is installed at the end of the upper clamping arm away from the clamping drive oil cylinder, and a lower clamping jaw is installed at the end of the lower clamping arm away from the clamping drive oil cylinder, and the upper clamping jaw is arranged opposite to the lower clamping jaw.
[0010] Preferably, the end of the lower clamping arm close to the clamping drive oil cylinder is connected to the beam platform by a variable pitch drive oil cylinder.
[0011] Preferably, the boom assembly comprises a rotating boom, the fixed end of the rotating boom is fixedly connected to the beam platform, and the movable end of the rotating boom is hingedly connected to the piston end of a boom drive oil cylinder, and the fixed end of the boom drive oil cylinder is hingedly connected to the beam platform.
[0012] Preferably, the anti-sway assembly comprises an electric wind vane fixedly connected to the beam platform, and the end of the wind vane rope away from the boom of the overhead crane is wound around the electric wind vane; the top of the clamp body is fixedly connected to a wind vane rope guide frame, and the wind vane rope penetrates through the wind vane rope guide frame.
[0013] Preferably, the counterweight assembly comprises a generator fixedly connected to the beam platform, and the generator is electrically connected to a wind vane control system, a hydraulic station and a hydraulic control system, and the wind vane control system, the hydraulic station and the hydraulic control system are all fixedly connected to the beam platform.
[0014] Preferably, the wind vane control system is electrically connected to the electric wind vane.
[0015] The present application discloses the following technical effects:
[0016] The present application clamps the blade through the clamp assembly, and controls the balance force of the wind vane rope through the anti-sway assembly, which not only effectively improves the wind resistance stability at a height of 100 meters, but also effectively avoids the risk of blade shaking caused by high-altitude wind load. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0019] Figure 2 It is a schematic diagram of the structure of the clamp assembly when it is opened.
[0020] Figure 3 The structure diagram when the clamping blade of the clamping assembly of the application is turned downward;
[0021] Figure 4 The structure diagram when the clamping blade of the clamping assembly of the application is turned upward;
[0022] Figure 5 The schematic diagram of lifting by the hoist crane;
[0023] Wherein, 1, beam body platform; 2, lower clamping jaw; 3, upper clamping jaw; 4, electric wind; 5, wind control system; 6, wind rope guide frame; 7, wind rope; 8, generator; 9, rotating boom; 10, hydraulic station; 11, boom drive cylinder; 12, hydraulic control system; 13, clamping body; 14, upper jaw arm; 15, jaw shaft; 16, lower jaw arm; 17, variable pitch drive cylinder; 18, clamping drive cylinder. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.
[0025] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the application will be further described in detail below with reference to the drawings and specific embodiments.
[0026] REFERENCE Figures 1 to 5 The application provides a scissor type single-blade lifting appliance system for wind-resistant work at a hundred-meter altitude, comprising a beam body platform 1, the bottom of the beam body platform 1 is symmetrically provided with a clamping assembly for clamping a blade, the top center of the beam body platform 1 is provided with a boom assembly for connecting with a lifting hook of a hoist crane, the two sides of the boom assembly are respectively provided with an anti-sway assembly for preventing the beam body platform 1 from swaying, a counterweight assembly is respectively arranged between the anti-sway assembly and the boom assembly, and the counterweight assembly is installed on the beam body platform 1; the anti-sway assembly is connected with the boom of the hoist crane through a wind rope 7, the balance force of the wind rope 7 is controlled through the anti-sway assembly, and the anti-sway assembly is used for preventing the blade from swaying caused by wind load at a high altitude.
[0027] The application clamps the blade through the clamping assembly and controls the balance force of the wind rope 7 through the anti-sway assembly, which not only effectively improves the wind-resistant stability at a hundred-meter altitude, but also effectively avoids the swaying risk of the blade caused by wind load at a high altitude.
[0028] Further optimization scheme, the clamp assembly includes a clamp body 13, one end of the clamp body 13 is installed on the beam body platform 1, and the other end of the clamp body 13 is rotatably connected with the middle part of the upper clamp arm 14 and the middle part of the lower clamp arm 16 through the clamp shaft 15. By rotating the middle part of the upper clamp arm 14 and the middle part of the lower clamp arm 16 along the clamp shaft 15, the upper clamp arm 14 and the lower clamp arm 16 can be clamped or loosened.
[0029] Further optimization scheme, the upper clamp arm 14 and the lower clamp arm 16 are arranged in an X shape. Even if the upper clamp arm 14, the lower clamp arm 16 and the clamp shaft 15 form a scissors form opening and closing.
[0030] Further optimization scheme, one end of the upper clamp arm 14 and the lower clamp arm 16 is connected through the clamping drive oil cylinder 18. By controlling the extension length of the piston end of the clamping drive oil cylinder 18, the opening and closing of the upper clamp arm 14 and the lower clamp arm 16 can be effectively controlled.
[0031] Further optimization scheme, the upper clamp arm 14 is provided with an upper clamp jaw 3 at one end away from the clamping drive oil cylinder 18, the lower clamp arm 16 is provided with a lower clamp jaw 2 at one end away from the clamping drive oil cylinder 18, and the upper clamp jaw 3 is arranged opposite to the lower clamp jaw 2. The upper clamp jaw 3 and the lower clamp jaw 2 can effectively clamp the blade.
[0032] Further optimization scheme, one end of the lower clamp arm 16 close to the clamping drive oil cylinder 18 is connected with the beam body platform 1 through the variable pitch drive oil cylinder 17. The spreader reaches the variable pitch function through the variable pitch drive oil cylinder 17, that is, the rotation angle of the lower clamp jaw 2 and the upper clamp jaw 3 clamping the blade can be controlled through the variable pitch drive oil cylinder 17, and the blade can be more accurately connected with the hub in the air.
[0033] That is, after the spreader clamps the blade, the variable pitch drive oil cylinder 17 is extended and retracted to make the blade rotate by plus or minus 5 degrees in the variable pitch direction, so that the blade can be more accurately connected with the hub in the air.
[0034] The clamping drive oil cylinder 18 cooperates with the scissors type clamp assembly to increase the opening degree, and the variable pitch drive oil cylinder 17 adjusts the opening direction, so as to realize the quick unhooking of the blade without damage, and solve the problem of low installation efficiency caused by insufficient opening degree of the clamp and limited variable pitch angle.
[0035] The scissors type clamp assembly of the present application increases the opening degree of the clamp by 30%, improves the unhooking effect by 50%, and reduces the damage rate of the blade to below 0.2%; the hydraulic cylinder replaces the counterweight beam, thereby reducing the weight by 20 tons, shortening the length of the spreader by 14 meters, and reducing the cost of the floating crane by 35%; the hydraulic cylinder has double functions, so that the single mechanism realizes variable pitch rotation (±5°-±0.8°) and torque balance, and the failure points are reduced by 60%; the blade shaking amplitude is reduced by 70% through the anti-shaking assembly, the upper limit of the effective working wind speed is improved to 15 m / s, and the installation efficiency is improved by 40%.
[0036] Further optimization scheme, the boom assembly includes a rotating boom 9, the fixed end of the rotating boom 9 is fixedly connected with the beam platform 1, the movable end of the rotating boom 9 is hingedly connected with the piston end of the boom driving oil cylinder 11, and the fixed end of the boom driving oil cylinder 11 is hingedly connected with the beam platform 1.
[0037] Through the extension and retraction of the piston end of the boom driving oil cylinder 11, the beam platform 1 can be positively and negatively rotated.
[0038] Further optimization scheme, the anti-sway assembly includes an electric wind luffing device 4 fixedly connected with the beam platform 1, and one end of a wind luffing rope 7 away from the boom of the crane is wound on the electric wind luffing device 4; a wind luffing rope guide frame 6 is fixedly connected to the top of the clamp body 13, and the wind luffing rope 7 penetrates through the wind luffing rope guide frame 6.
[0039] The electric wind luffing device 4 is controlled by a constant tension automatic control system.
[0040] The constant tension system is a core device in the field of ship engineering for hoisting and recovery operations, and the tension of the steel wire rope or sling is kept constant through closed-loop control technology. Its technical principle includes hydraulic drive control, traction cable dynamics modeling and double solenoid valve coordination mechanism, and meets the requirements of IMO on hoisting impact force limitation. In the hoisting scene, the constant tension system avoids impact load transmission by suppressing swing.
[0041] The constant tension system realizes dynamic tension adjustment based on hydraulic closed-loop control. When the winch motor lifting pressure exceeds the set value, the hydraulic oil flows to the descending oil way through the pilot overflow valve to realize automatic rope release; when the pressure is lower than the threshold value, the oil returns to the oil tank. The constant tension system establishes the differential equation of traction cable dynamics to derive the tension transfer function, and verifies the control accuracy by joint simulation of AMESim and Simulink.
[0042] The wind luffing rope 7 output by the electric wind luffing device 4 is installed on the stable hook on the boom of the crane, the lifting appliance is hoisted by the crane, and the constant tension automatic control system of the electric wind luffing device 4 can automatically control the balancing force of the wind luffing rope 7 under high-altitude wind load conditions, so that the lifting appliance does not swing with the wind and always maintains a stable state, and is not subjected to impact load. The electric wind luffing device 4 is more relaxed and stable during the processes of rope winding and unwinding, the anti-wind stability of the 100-meter-high space is improved, and the risk of blade swing caused by high-altitude wind load is avoided.
[0043] Further optimization scheme, the counterweight assembly includes a generator 8 fixedly connected with the beam platform 1, the generator 8 is electrically connected with a wind luffing control system 5, a hydraulic station 10 and a hydraulic control system 12, and the wind luffing control system 5, the hydraulic station 10 and the hydraulic control system 12 are fixedly connected with the beam platform 1.
[0044] The electric wind luffing device 4 can also be used as a counterweight.
[0045] Further optimization scheme, wind control system 5 and electric fan 4 electrically connected.
[0046] Through the electric fan 4, the wind control system 5, the generator 8, the hydraulic station 10 and the hydraulic control system 12, the load balance of the lifting appliance can be maintained, wherein the generator 8 is used to provide power for the wind control system 5, the hydraulic station 10 and the hydraulic control system 12, the hydraulic station 10 is used to convert mechanical energy into hydraulic energy, so that the hydraulic control system 12 can provide power for the boom driving cylinder 11, the variable pitch driving cylinder 17 and the clamping driving cylinder 18, the wind control system 5 is used to control the constant force contraction of the wind rope 7, and the hydraulic control system 12 is used to receive signals from the operation panel, sensors and the like, and accurately control the operation of the equipment.
[0047] The application is suitable for 100-meter-high hoisting operation of large offshore wind turbine blades.
[0048] The present application increases the opening degree through the scissors type clamp assembly, realizes the quick unhooking of the blade without damage, solves the problem of low installation efficiency caused by insufficient opening degree of the clamp and limited variable pitch angle; at the same time, the hydraulic cylinder integrates the variable pitch and counterweight functions, reduces the weight and cost while expanding the rotation angle to greater than or equal to ± 5 degrees; the anti-sway assembly is carried, the wind stability of 100-meter-high air is improved, and the risk of blade shaking caused by high-altitude wind load is avoided.
[0049] The present application replaces the traditional C-shaped clamp body with a scissors type clamp assembly, adopts a hinged scissors structure, integrates the upper and lower clamps into a linkage whole; the lower clamp drag claw is designed as a rotatable mechanism, which freely expands outward during unhooking, avoiding scratching the surface of the blade; a telescopic rotating device is arranged at the tail, a multi-stage hydraulic telescopic arm is integrated at the tail of the clamp, and the clamp is driven to rotate around the blade axis; the variable pitch direction is continuously adjusted.
[0050] The counterweight function of the traditional counterweight beam is replaced, and the lightweight beam structure is adopted: the rotating counterweight beam at both ends of the beam body is cancelled, and the weight reduction is realized through the mechanical balance of the telescopic device; the total weight of the lifting appliance is reduced by greater than or equal to 20 tons, the length is shortened by 14 meters, and the rated load is increased to 65 tons.
[0051] Electric anti-wind stability system: the hoisting equipment integrates a high-precision electric fan 4, the electric fan 4 includes a wind speed and direction sensor, a winch mechanism driven by a servo motor and a control module for dynamically adjusting the tension of the wind rope; the blade attitude is automatically stabilized at 100-meter-high air.
[0052] The present application realizes the weight reduction of the lifting appliance by 33%, the cost reduction of the floating crane by 30% through the trinity of "structure weight reduction, function integration and intelligent wind resistance"; the installation efficiency is improved, the single blade installation time is shortened to 45 minutes (the original scheme is 120 minutes); the safety risk is reduced by 90%, the insurance cost is reduced by 40%; the sea state adaptability is improved by 87%, and the annual effective operation days are increased by 60 days.
[0053] In the description of the present application, it needs to be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0054] The above-described embodiments are only to describe the preferred modes of the present application, and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.
Claims
1. A scissor type single blade sling system for wind resistant work at a height of 100 meters, characterized by: The utility model provides a kind of blade handling device, including beam body platform (1), the bottom of the beam body platform (1) is symmetrically provided with the clamp assembly for clamping blade, the top center of the beam body platform (1) is provided with the boom assembly for being connected with the hook of hoist crane, both sides of the boom assembly are provided with the anti-sway assembly for preventing the beam body platform (1) sway respectively, counterweight assembly is respectively arranged between the anti-sway assembly and the boom assembly, and the counterweight assembly is installed on the beam body platform (1); The anti-sway assembly is connected with the boom of hoist crane by wind rope (7), and the balance force of the wind rope (7) is controlled by the anti-sway assembly to prevent blade sway caused by high-altitude wind load.
2. The scissor type single blade hanger system for wind resistant work at hundreds of meters altitude according to claim 1, characterized in that: The clamp assembly includes a clamp body (13), one end of the clamp body (13) is installed on the beam body platform (1), and the other end of the clamp body (13) is rotatably connected with the middle part of the upper jaw arm (14) and the middle part of the lower jaw arm (16) through a jaw shaft (15).
3. The scissor-type single-blade hanger system for wind-resistant work at a height of 100 meters according to claim 2, characterized in that: The upper jaw arm (14) and the lower jaw arm (16) are arranged in an X shape.
4. The scissor type single blade hanger system for wind resistant work at hundreds of meters altitude according to claim 2, characterized in that: One end of the upper jaw arm (14) and the lower jaw arm (16) is connected by a clamping drive oil cylinder (18).
5. The scissor-type single-blade hanger system for wind-resistant work at a height of 100 meters according to claim 4, characterized in that: The upper jaw arm (14) is provided with an upper clamping jaw (3) at the end away from the clamping drive oil cylinder (18), and the lower jaw arm (16) is provided with a lower clamping jaw (2) at the end away from the clamping drive oil cylinder (18).
6. The scissor type single blade hanger system for wind resistant work at hundreds of meters altitude according to claim 4, characterized in that: The end of the lower jaw arm (16) close to the clamping drive oil cylinder (18) is connected with the beam body platform (1) by a variable pitch drive oil cylinder (17).
7. The scissor monopole hanger system for wind resistant work at hundreds of meters in the air according to claim 6, characterized in that: The boom assembly includes a rotating boom (9), the fixed end of the rotating boom (9) is fixedly connected with the beam body platform (1), and the movable end of the rotating boom (9) is hingedly connected with the piston end of a boom drive oil cylinder (11), and the fixed end of the boom drive oil cylinder (11) is hingedly connected with the beam body platform (1).
8. The scissor monopole hanger system for wind resistant work at hundreds of meters in the air according to claim 7, characterized in that: The anti-sway assembly includes an electric wind vane (4) fixedly connected with the beam body platform (1), and one end of the wind rope (7) away from the boom of hoist crane is wound on the electric wind vane (4). The top of the clamp body (13) is fixedly connected with a wind rope guide frame (6), and the wind rope (7) penetrates through the wind rope guide frame (6).
9. The scissor monopole hanger system for wind resistant work at hundreds of meters in the air according to claim 8, characterized in that: The counterweight assembly includes a generator (8) fixedly connected with the beam body platform (1), and the generator (8) is electrically connected with a wind control system (5), a hydraulic station (10) and a hydraulic control system (12), and the wind control system (5), the hydraulic station (10) and the hydraulic control system (12) are fixedly connected with the beam body platform (1).
10. The scissor single blade hanger system for wind resistant work at hundreds of meters altitude according to claim 9, characterized in that: The wind control system (5) is electrically connected with the electric wind vane (4).