A hoisting angle-adjustable wind power blade hoisting auxiliary device

Abstract

The utility model discloses a hoist angle adjustable wind power generation blade hoist auxiliary device, include: inner frame, the outer surface of inner frame is arc structure, and the inner frame is provided with the clamping piece for wind power generation blade clamping fixed in, outer frame, the outer frame sets up in the outside of inner frame, and the outer frame is the arc structure of upper end opening, and the upper end of outer frame is installed for the connecting piece of opening connection, and the outer surface on the upper portion of outer frame is provided with the suspension piece, and the lower surface of outer frame is welded with the supporting leg, angle drive part, angle drive part sets up between inner frame and outer frame to make inner frame adjust angle through angle drive part, wherein, the clamping piece includes the two groups of electric push rod that set up symmetrically in the inner side of inner frame, and the telescopic end of electric push rod is fixed with pressure sensor, and the pressure sensor is installed with clamping rubber pad. The utility model can promote blade fixed stability, realize blade angle flexible regulation, strengthen the device structure stability, and optimize hoist operation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of hoisting auxiliary devices, specifically to a hoisting auxiliary device for wind turbine blades with adjustable hoisting angle. Background Technology

[0002] With the rapid development of the new energy industry, wind power, as an important component of clean energy, is seeing its installed capacity continuously expand. Wind turbine blades, as the core component of wind turbine generators, are characterized by their large size, heavy weight, and precise structure, making their hoisting and installation extremely demanding in terms of construction efficiency and safety.

[0003] In existing wind turbine blade hoisting operations, traditional hoisting methods mostly rely on simple tools such as slings and wire ropes to directly bind the blades for lifting. The technical problems and shortcomings of existing technologies are as follows: First, the blades are not securely fixed and are prone to swaying or shifting during hoisting, which not only increases the installation difficulty but also poses safety hazards. Second, adjusting the blade hoisting angle is difficult. Due to the high precision requirements of the blade-generator alignment angle, traditional methods require multiple hoisting adjustments to achieve accurate alignment, seriously affecting the construction progress. Third, the hoisting device itself lacks structural stability, especially during high-altitude operations, where external environmental factors (such as wind) can easily cause the device to sway, further reducing installation efficiency and safety. Furthermore, while some existing hoisting auxiliary devices can achieve basic clamping functions, they lack flexible angle adjustment mechanisms, and the overall structural strength of the devices is insufficient, making it difficult to adapt to the hoisting needs of blades of different specifications and failing to meet the actual construction requirements of rapid positioning and assembly in wind power projects.

[0004] Therefore, the development of a hoisting auxiliary device that can stably clamp the blades, flexibly adjust the angle, and achieve rapid positioning and assembly has become an urgent technical problem to be solved in the field of wind power construction. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary device for hoisting wind turbine blades with an adjustable hoisting angle. The technical problems to be solved are: first, how to improve the stability of blade fixing; second, how to solve the problem of difficulty in adjusting the blade hoisting angle; and third, how to improve the structural stability of the hoisting device itself and reduce construction risks.

[0006] To achieve the above objectives, this utility model provides an adjustable-angle wind turbine blade hoisting auxiliary device, comprising: an inner frame, the outer surface of which is an arc-shaped structure, and a clamping component for holding and fixing the wind turbine blade inside the inner frame; an outer frame, located outside the inner frame, having an arc-shaped structure with an open top, a connecting component for connecting the opening at the upper end of the outer frame, a suspension component on the upper outer surface of the outer frame, and a support foot welded to the lower surface of the outer frame; and an angle-adjusting drive component, located between the inner and outer frames, to allow the inner frame to adjust its angle via the angle-adjusting drive component; wherein, the clamping component includes two sets of electric push rods symmetrically arranged inside the inner frame, a pressure sensor fixed to the telescopic end of the electric push rod, and a clamping rubber pad installed on the pressure sensor.

[0007] In a preferred embodiment, each group of electric actuators is provided with twelve actuators, each consisting of an electric actuator, a pressure sensor, and a clamping pad, and the twelve clamping pads form a continuous curved surface.

[0008] In a preferred embodiment, the angle adjustment drive includes a guide mechanism, a drive mechanism, and a transmission mechanism. The guide mechanism includes two guide sleeves integrally formed on the outer surface of the inner frame, and an arc-shaped guide rail integrally formed on the inner surface of the outer frame. The guide rail is movably disposed within the guide sleeves, and the inner frame slides along the guide rail through the guide sleeves. The drive mechanism is fixed on the outer surface of the outer frame. The drive mechanism is a geared motor. The transmission mechanism includes a circular rotating component and a linear toothed component that mesh with each other. The circular rotating component is fixed to the output shaft of the geared motor, and the linear toothed component is fixed to the outer surface of the inner frame.

[0009] In a preferred embodiment, the outer frame, guide sleeve, and guide rail are all concentric arc-shaped structures, so that the inner frame rotates around a fixed center when it slides along the guide rail via the guide sleeve.

[0010] In a preferred embodiment, the connector includes four retaining rings welded to the upper end of the outer frame, and two internally threaded sleeves are installed on the upper end of the outer frame. Two hook screws are screwed onto both ends of the internally threaded sleeves, and the hook screws are hooked onto the retaining rings.

[0011] In a preferred embodiment, the suspension component includes a lifting lug rotatably mounted on the upper outer surface of the outer frame, a sling being mounted on the lifting lug, and a lifting ring being fixed to the end of the sling.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can improve the stability of blade fixing: the clamping parts set in the inner frame can firmly clamp the wind turbine blades, effectively avoiding the problems of blade swaying and displacement in traditional hoisting methods, ensuring the safety of the hoisting process, and laying the foundation for subsequent precise installation.

[0013] 2. This utility model can achieve flexible adjustment of blade angle: the angle adjustment drive component set between the inner frame and the outer frame can drive the inner frame to flexibly adjust the angle, thereby driving the blade to achieve multi-angle adjustment during hoisting. The angle change is linear and controllable, which is suitable for the high precision requirements of blade installation. Moreover, this design greatly reduces the number of angle adjustments when the blade is connected to the generator set, significantly shortens the installation time, and realizes rapid positioning and assembly of the blade.

[0014] 3. This utility model can enhance the structural stability of the device: the connector installed at the upper opening of the outer frame effectively enhances the structural strength of the upper opening of the outer frame and avoids the deformation of the device due to excessive force during hoisting; the legs welded on the lower surface of the outer frame improve the stability of the device when it is placed on the ground or temporarily supported, further ensuring the safety of operation.

[0015] 4. This utility model can optimize the efficiency of hoisting operations: The suspension components set on the upper outer surface of the outer frame provide reliable force points for blade hoisting. Combined with the stable clamping of the clamping components and the angle adjustment function of the angle adjustment drive components, the entire process from lifting to installation of the blade is smoother, significantly improving the hoisting and installation efficiency of wind turbine blades.

[0016] 5. This utility model has strong adaptability: This utility model can adapt to the hoisting requirements of wind turbine blades of different specifications. Through the flexible adjustment of the clamping parts and the multi-angle adjustment of the angle-adjusting drive parts, there is no need to change the special hoisting tools for different blades. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the parts of this utility model; Figure 3 This is a schematic diagram of the electric push rod, pressure sensor, and clamping pad structure in this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Inner frame; 2. Electric push rod; 3. Pressure sensor; 4. Clamping pad; 5. Outer frame; 6. Guide sleeve; 7. Guide rail; 8. Gear motor; 9. Gear; 10. Rack; 11. Snap ring; 12. Internal threaded sleeve; 13. Hook screw; 14. Lifting lug; 15. Lifting sling; 16. Lifting ring; 17. Support leg. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1 like Figures 1 to 3 As shown, the preferred embodiment of this utility model discloses an adjustable-angle wind turbine blade hoisting auxiliary device, comprising: an inner frame 1, an outer frame 5, and an angle-adjusting drive component. The outer surface of the inner frame 1 is an arc-shaped structure, and a clamping component for holding and fixing the wind turbine blade is provided inside the inner frame 1. The clamping component includes two sets of electric push rods 2 symmetrically arranged on the inner side of the inner frame 1. A pressure sensor 3 is fixed to the telescopic end of the electric push rod 2, and a clamping rubber pad 4 is installed on the pressure sensor 3. The outer frame 5 is located outside the inner frame 1. The outer frame 5 is an arc-shaped structure with an open upper end. A connector for connecting the opening is installed at the upper opening of the outer frame 5, which facilitates the connection and increases the stability of the upper opening of the outer frame 5. A suspension component is provided on the upper outer surface of the outer frame 5 to facilitate the suspension of the wind turbine blade by the auxiliary device. A support leg 17 is welded to the lower surface of the outer frame 5, which improves the stability of the device when placed on the ground or temporarily supported. An angle adjustment drive is installed between the inner frame 1 and the outer frame 5 so that the inner frame 1 can adjust its angle through the angle adjustment drive, thereby facilitating the rapid installation of wind turbine blades.

[0021] In this embodiment, specifically, each group of electric push rods 2 is equipped with twelve electric push rods 2, pressure sensors 3, and clamping pads 4 in a one-to-one correspondence. The twelve clamping pads 4 form a continuous curved surface, evenly distributing the clamping force and preventing local deformation of the blade from affecting the angle reference, thereby facilitating the stable contact between the clamping pads 4 and the outer surface of the wind turbine blade. It should be noted that this device can be equipped with a conventional control system. The pressure sensor monitors the clamping pressure in real time, and the data is fed back to the control system. If the pressure is abnormal, adjustment can be triggered, indirectly ensuring the stability of the initial state of angle adjustment.

[0022] Furthermore, the angle adjustment drive includes a guiding mechanism, a driving mechanism, and a transmission mechanism. The guiding mechanism includes two guide sleeves 6 integrally formed on the outer surface of the inner frame 1, and an arc-shaped guide rail 7 integrally formed on the inner surface of the outer frame 5. The guide rail 7 is movably disposed within the guide sleeves 6, allowing the inner frame 1 to slide along the guide rail 7 via the guide sleeves 6. A driving mechanism, a geared motor 8, is fixed to the outer surface of the outer frame 5. The geared motor can automatically adjust the angle by setting the target angle through an external control system, reducing human error. The geared motor automatically locks after adjustment to prevent angle reversion due to vibration or wind during high-altitude operations. The transmission mechanism includes a meshing circular rotating component and a linear toothed component. The circular rotating component is fixed to the output shaft of the geared motor 8, and the linear toothed component is fixed to the outer surface of the inner frame. The rotational torque of the geared motor is converted into a driving force through the transmission mechanism. The linear toothed component is fixedly connected to the inner frame, thus converting the rotational motion into a linear displacement of the inner frame (along an arc path). However, due to the arc-shaped constraint of the guide rail 7, the linear displacement is actually a rotational motion around the center. Furthermore, the outer frame 5, guide sleeve 6, and guide rail 7 are all concentric arc structures, allowing the inner frame 1 to rotate around a fixed center when sliding along the guide rail 7 via the guide sleeve 6. Because the inner frame 1 rotates smoothly under the guidance of the guide sleeve and guide rail, precise rotation of the inner frame is achieved through the transmission mechanism, which can synchronously adjust the angle of the clamping components and their fixed blades. Throughout the process, the concentric arc structure ensures a consistent rotation trajectory without jamming or wobbling.

[0023] Example 2 Based on Embodiment 1, the circular rotating component can be configured as a gear 9, which is fixed to the end of the output shaft of the geared motor 8, and the linear toothed component can be configured as a rack 10, with the gear 9 meshing with the rack 10.

[0024] Furthermore, the connectors include four retaining rings 11 welded to the upper end of the outer frame 5, and two internally threaded sleeves 12 installed on the upper end of the outer frame 5. Two hook screws 13 are screwed onto both ends of the internally threaded sleeves 12, and the hook screws 13 are hooked onto the retaining rings 11, which facilitates the connection of the opening at the upper end of the outer frame 5, thereby increasing the stability of the outer frame 5 structure.

[0025] Furthermore, the suspension component includes a lifting lug 14 rotatably mounted on the upper outer surface of the outer frame 5, a sling 15 mounted on the lifting lug 14, and a lifting ring 16 fixed to the end of the sling 15. The suspension component facilitates the auxiliary device to hoist the wind turbine blades.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind turbine blade hoisting auxiliary device with adjustable hoisting angle, characterized in that: include: The inner frame (1) has an arc-shaped outer surface and is provided with clamping components for clamping and fixing wind turbine blades. The outer frame (5) is located outside the inner frame (1). The outer frame (5) is an arc-shaped structure with an opening at the top. A connector for opening connection is installed at the upper end of the outer frame (5). A suspension component is provided on the outer surface of the upper part of the outer frame (5). A support leg (17) is welded on the lower surface of the outer frame (5). An angle adjustment drive is provided between the inner frame (1) and the outer frame (5) so that the inner frame (1) can adjust its angle through the angle adjustment drive. The clamping component includes two sets of electric push rods (2) symmetrically arranged on the inner side of the inner frame (1). The telescopic end of the electric push rod (2) is fixed with a pressure sensor (3), and a clamping pad (4) is installed on the pressure sensor (3).

2. The wind turbine blade hoisting auxiliary device with adjustable hoisting angle according to claim 1, characterized in that: Each set of electric push rods (2) is provided with twelve, and the electric push rods (2), pressure sensors (3) and clamping pads (4) correspond one-to-one, and the twelve clamping pads (4) form a continuous curved surface.

3. The wind turbine blade hoisting auxiliary device with adjustable hoisting angle according to claim 1, characterized in that: The angle adjustment drive includes a guide mechanism, a drive mechanism, and a transmission mechanism. The guide mechanism includes two guide sleeves (6) integrally formed on the outer surface of the inner frame (1). An arc-shaped guide rail (7) is integrally formed on the inner surface of the outer frame (5). The guide rail (7) is movably arranged in the guide sleeve (6). The inner frame (1) slides along the guide rail (7) through the guide sleeve (6). The drive mechanism is fixed on the outer surface of the outer frame (5). The drive mechanism is a geared motor (8). The transmission mechanism includes a circular rotating component and a linear toothed component that mesh with each other. The circular rotating component is fixed to the output shaft of the geared motor (8), and the linear toothed component is fixed to the outer surface of the inner frame.

4. The wind turbine blade hoisting auxiliary device with adjustable hoisting angle according to claim 3, characterized in that: The outer frame (5), guide sleeve (6) and guide rail (7) are all concentric arc structures, so that when the inner frame (1) slides along the guide rail (7) through the guide sleeve (6), it rotates along a fixed center.

5. The wind turbine blade hoisting auxiliary device with adjustable hoisting angle according to claim 4, characterized in that: The connector includes four retaining rings (11) welded to the upper end of the outer frame (5). Two internal threaded sleeves (12) are installed on the upper end of the outer frame (5). Two hook screws (13) are screwed into both ends of the internal threaded sleeves (12), and the hook screws (13) are hooked on the retaining rings (11).

6. The wind turbine blade hoisting auxiliary device with adjustable hoisting angle according to claim 5, characterized in that: The suspension component includes a lifting lug (14) rotatably mounted on the upper outer surface of the outer frame (5), a sling (15) is mounted on the lifting lug (14), and a lifting ring (16) is fixed to the end of the sling (15).

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