Fan blade mounting equipment and blade mounting method

Abstract

The invention discloses fan blade mounting equipment. The fan blade mounting equipment comprises a hanging bracket and a clamp rotationally arranged on the hanging bracket; the clamp comprises a transmission seat, and a clamping assembly is arranged on the inner side of the transmission seat. The clamping assembly is mounted on the transmission seat through a mounting seat; a rotation driving mechanism which is in transmission connection with the periphery of the transmission seat and drives the transmission seat to rotate is arranged on the hanging bracket; the transmission seat is driven by the rotation driving mechanism to drive the clamping assembly to rotate in the vertical direction so as to place and / or hoist the blade. The clamping assembly comprises clamping hands for clamping the fan blade from the two vertical sides of the fan blade, and linkage mechanisms which are in transmission connection with the clamping hands so as to drive the two clamping hands to clamp the blade and move are arranged on the installation base. The blades do not need to be transferred for many times or frequently adjusted in direction in the transporting and hoisting process, and when hoisting operation is carried out, through the rotating function of the transmission base and the fine adjustment function of the linkage mechanism, conversion of the directions of the blades, alignment of the opening positions and fine adjustment of the blades towards the openings can be completed only through one-time adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering equipment, and in particular to a fan blade installation device and a blade installation method. Background Art

[0002] In recent years, the scope of offshore wind power development has gradually expanded from shallow offshore to deep sea. With the continuous advancement of wind power generation technology, the unit capacity of offshore wind turbines and the size of wind turbine blades have increased year by year, which has put forward higher technical requirements for the installation, transportation and hoisting of wind turbines. The hoisting of offshore wind turbine blades is one of the important links in the installation process of wind turbines. As the unit capacity of wind turbines continues to increase, the blade size of wind turbines has also gradually increased, and wind turbine hoisting operations often need to rely on a variety of special equipment and tools for cooperation. To this end, some innovative technical solutions have emerged in recent years. For example, the Chinese invention patent with publication number CN115215192A proposes an adaptive integrated device. This technical solution adjusts the blade from a horizontal position to a side-standing position through an adaptive device, and uses a hoisting device for synchronous hoisting. After the hoisting is completed, the clamping device is separated from the blade and moved along the long axis of the blade. Finally, the device is detached from the blade to achieve the smooth completion of the hoisting operation. However, the solution still has the following limitations:

[0003] 1. The blades are only clamped at the root of the blades by the upper and lower contour plates to limit and fix the blades. When transporting the device, the blades are placed horizontally, which may cause the blades to bend and deform due to their own gravity.

[0004] 2. At the same time, part of the blade is only supported by the rear profile plate, and the blade is easily loosened due to vibration or tilt during transportation or hoisting, and the clamping effect needs to be improved;

[0005] 3. After the blade aerial hoisting operation is completed, the adaptive integrated device needs to be detached from the blade axially, and the lifting arm of the lifting equipment needs a longer adjustment space, which is not conducive to improving the lifting efficiency of the lifting equipment;

[0006] 4. This solution completes the stages of blade transportation, hoisting, and detachment from the blades, which requires multiple rotations of the blades and removal or installation of the upper part of the drum, which is cumbersome and affects the efficiency of blade installation.

[0007] Therefore, further research and development is needed to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0008] In order to solve the technical problems existing in the above-mentioned prior art, one of the purposes of the present invention is to provide a fan blade installation device. Another purpose of the present invention is to provide a fan blade installation method.

[0009] One of the purposes of the present invention is achieved through the following technical solutions:

[0010] A fan blade installation device is used in the transportation and lifting operations of fan blades; it includes a hanger and a clamp rotatably arranged on the hanger; the clamp includes a transmission seat, the inner side of the transmission seat is provided with a clamping assembly for placing and limiting the fan blades; the clamping assembly is installed on the transmission seat through the mounting seat; the hanger, the transmission seat and the mounting seat are respectively provided with openings for taking and placing the fan blades; the hanger is provided with a rotating drive mechanism that is transmission-connected to the outer periphery of the transmission seat and drives the transmission seat to rotate; the transmission seat drives the clamping assembly to rotate in a vertical direction under the drive of the rotating drive mechanism to place the fan blades and / or lift the blades; the clamping assembly includes clamps for clamping the fan blades from both sides of the fan blade in the vertical direction, and the two clamps are respectively rotatably symmetrically arranged on the inner side of the mounting seat; the mounting seat is respectively provided with linkage mechanisms that are transmission-connected to the clamps to drive the two clamps to clamp the fan blades and move toward the openings.

[0011] Furthermore, the clamp comprises a first clamp arm and a second clamp arm hinged to each other; the mounting seat is respectively provided with a first driving member and a second driving member for driving the first clamp arm and the second clamp arm to move closer or farther away; the linkage mechanism comprises a connecting rod hinged at one end on the mounting seat and a linkage sliding rod transmission connected to the connecting rod; the other end of the connecting rod is hinged to the hinge of the first clamp arm and the second clamp arm; the first end of the linkage sliding rod can slide axially along the connecting rod, and the second end can slide along the mounting seat; the mounting seat is provided with an elastic reset member connected to the second end of the linkage sliding rod; the second end of the linkage sliding rod slides toward the hinge of the connecting rod and the mounting seat driven by the elastic reset member.

[0012] Furthermore, the first end and the second end of the linkage slide rod are respectively provided with a slide seat, the connecting rod and the mounting seat are provided with a limiting slide groove matched with the slide seat, and both sides of the slide seat extend and are restricted in the limiting slide groove; one end of the elastic reset member is fixed to the bottom of the limiting slide groove, and the other end is connected to the second end of the linkage slide rod; the connecting rod, the linkage slide rod and the elastic reset member form a compression linkage mechanism, and the elastic reset member drives the second end of the linkage slide rod to slide toward the hinge between the connecting rod and the mounting seat through the slide seat, thereby driving the first end of the linkage slide rod to slide toward the hinge between the connecting rod and the corresponding first clamp arm and second clamp arm.

[0013] Furthermore, one end of the first driving member and the second driving member are respectively connected to the mounting seat, and the other ends are respectively transmission-connected to the corresponding first clamping arm and second clamping arm; and while the first clamping arm and the second clamping arm are respectively driven to rotate around their hinges to clamp the fan blades, the first end of the linkage slide rod slides toward the hinges between the connecting rod and the corresponding first clamping arm and second clamping arm under the resetting action of the elastic resetting member, thereby driving the connecting rod to rotate around its end hinged to the mounting seat, so as to drive the first clamping arm and the second clamping arm that clamp the blades to move toward the opening as a whole.

[0014] Further, the hanger comprises a bottom hanger and a top hanger covering the bottom hanger; a lifting ear connected to a lifting cable is provided above the top hanger; the inner cavities of the bottom hanger and the top hanger form the assembly cavity; the assembly cavity has a U-shaped side opening; the bottom hanger and / or the top hanger are provided with the rotation drive mechanism;

[0015] The rotation drive mechanism includes a driving gear arranged in the hanger, a gear ring meshing with the driving gear is provided on the outer periphery of the transmission seat, and a plurality of the driving gears are distributed at intervals along the circumference of the gear ring; a limiting extension is provided on the outer periphery of the transmission seat and extends outward along both sides of the gear ring, a limiting frame corresponding to the limiting extension is provided on the bottom hanger, and a plurality of rollers in rolling contact with the limiting extension are provided on the limiting frame.

[0016] Furthermore, the outer surface of the top hanger is provided with three lifting ears at intervals, and the three lifting ears are staggered; the top hanger is provided with a mounting portion extending toward the bottom hanger, and the bottom hanger is provided with a mounting groove corresponding to the mounting portion for plug-in connection or splicing connection; or, the bottom hanger is provided with the mounting portion, and the top hanger is provided with the mounting groove; both sides of the outer wall of the bottom hanger are provided with reinforcing edges extending horizontally outward, and a plurality of reinforcing blocks are distributed at intervals along the length direction of the reinforcing edges.

[0017] Furthermore, the assembly cavity of the bottom hanger is provided with two layers of limit frames including upper and lower intervals, and the side of the limit frame corresponding to the limit extension is provided with an arc-shaped assembly surface matching the limit extension; a plurality of rollers are arranged at intervals along the arc-shaped assembly surface; the limit extension of the transmission seat is located between the upper and lower assembly arc surfaces, and its upper surface and lower surface are respectively abutted against the roller rolling limit.

[0018] Furthermore, the transmission seat comprises a transmission base and transmission side seats plugged and connected to both sides of the transmission base; the transmission base and the two transmission side seats are respectively provided with racks on their outer circumferences, and are sequentially butted and spliced ​​to form the gear ring;

[0019] The transmission base is provided with limit blocks extending toward the transmission side seat on both sides, and the two transmission side seats are respectively provided with insertion slots adapted to be inserted with the limit blocks, and the insertion slots are respectively provided with side openings facing the limit blocks;

[0020] The mounting seat includes a mounting base and mounting side seats plugged and connected on both sides of the mounting base; the mounting base and / or the mounting side seat are respectively locked and connected to the transmission base and / or the transmission side seat through a locking mechanism; the two first clamping arms and the second clamping arms are hinged to each other and then hinged to the corresponding mounting side seats through the connecting rod.

[0021] Furthermore, the locking mechanism includes a locking arm, a locking piece, and a locking slider for locking the locking piece when the driven locking arm is opened or retracted; the cross-section of the locking slider is trapezoidal; the locking arm includes a contact end and a locking end, and the contact end is in sliding contact with the inclined surfaces on both sides of the locking slider; the width of the locking slider gradually decreases toward the direction of the locking arm; when the contact end slides to one end of the locking slider close to the locking arm, the locking arm is in an unlocked state; when the contact end slides to the other end of the locking slider away from the locking arm, the locking arm is in a locked state; the locking slider is driven by an oil cylinder, an air cylinder, a gear rack, or an air drive.

[0022] The second object of the present invention is achieved by the following technical solutions:

[0023] A method for installing a fan blade comprises the above-mentioned fan blade installation device, and the blade installation method comprises the following steps:

[0024] S1. Release the connection between the top hanger and the bottom hanger, and then lift the top hanger away from the bottom hanger by a lifting device so that the fixture is exposed in the blade loading area;

[0025] S2. Drive the transmission seat to rotate in the vertical direction, adjust the direction of the opening, lift the blade and place it in the fixture, and clamp it through the clamping assembly; then install the top hanger on the bottom hanger and lock it to complete the blade loading;

[0026] S3. Lift the hanger, the clamp and the blade as a whole to the target position, drive the transmission seat to drive the clamping assembly to rotate, rotate the blade and dock it with the cabin, and after the blade and the cabin are docked, separate the hanger and the clamp as a whole from the side of the blade.

[0027] Furthermore, in S2, the transmission seat is driven to place the opening direction facing upward; in S3, after the blade is rotated to the horizontal direction, the blade presses the first clamping arm and the second clamping arm located at the bottom thereof to apply pressure, and drives the connecting rod to rotate about its hinged end toward the mounting seat, and the linkage slide bar is passively subjected to force, and its first end moves in the direction close to the hinge between the connecting rod and the mounting seat, and at the same time, the second end moves in the direction away from the hinge between the connecting rod and the mounting seat, and the reset elastic member is in a stretched state; the second driving member is driven to push the second clamping arm to rotate about the hinge between it and the first clamping arm and clamp and push the blade, and the elastic reset member is reset, and the first end of the linkage slide bar slides toward the hinge between the connecting rod and the corresponding first clamping arm and second clamping arm under the reset action of the elastic reset member, thereby driving the connecting rod to rotate about one end hinged to the mounting seat, so as to drive the first clamping arm and the second clamping arm that clamp the blade to move toward the opening as a whole.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] 1. The wind turbine blade installation device of the present invention can be used for both the transportation and hoisting of the blades. The blades are placed vertically to effectively avoid deformation and damage during transportation. When entering the hoisting stage, the blades are adjusted to the horizontal direction using a rotatable clamp to avoid interference from the hoisting cable, which is convenient for adjusting the angle of the boom and completing the docking of the blades with the nacelle. After the docking of the blades with the nacelle is completed, the hanger and the clamp are withdrawn from the side of the blades. The wind turbine blade installation device of the present invention not only realizes functional integration, but also reduces the space limitation of the boom, thereby improving the flexibility and efficiency of the hoisting process.

[0030] On the other hand, the sensor can be set to adjust the angle of the clamp in real time according to the transportation and lifting conditions to compensate for the transportation and lifting processes; in the design of the bottom hanger, the driving gears are distributed at intervals along the circumference of the gear ring of the transmission seat. Through the coordination of the driving gear, the roller of the limit frame, the arc-shaped assembly surface and the gear ring and the limit extension of the transmission seat, it can also ensure that the transmission seat always moves along the predetermined trajectory during the rotation process, avoiding the deviation of the transmission seat and ensuring a smoother rotation action.

[0031] 2. The present invention adopts a linkage mechanism to achieve accurate clamping and rotation adjustment of the fan blades. The core of the invention lies in the coordinated action of the connecting rod, the linkage slide rod and the elastic reset member. When the blade is clamped, the first clamp arm and the second clamp arm begin to close and clamp the blade under the action of the driving member. At the same time, the linkage slide rod slides under the reset action of the elastic reset member. The first end of the linkage slide rod moves axially along the connecting rod, while the second end slides on the mounting seat. The sliding of the two ends forms a flexible linkage, which can adjust the clamping force according to the size and weight of the blade.

[0032] When replacing a larger blade or entering the lifting stage and the blade needs to be rotated to be placed horizontally, the linkage mechanism moves toward the mounting seat as a whole under the pressure of the blade, and drives the second clamping arm to clamp the blade by controlling the second driving member; during this process, the force of the linkage mechanism gradually reaches a balance, and after the clamping action is completed, the pressure of the linkage mechanism begins to decrease, thereby providing conditions for the resetting of the elastic reset member, and the elastic force generated by its stretching is converted into a reset driving force for the linkage slide rod, so that the first end of the linkage slide rod gradually approaches the hinge between the connecting rod and the mounting seat, pushing the connecting rod to rotate around its hinge end, further driving the clamping arm that clamps the blade to move in the direction of the opening as a whole, and at the same time having the function of lifting the blade and slightly sending the blade toward the opening; through the coordinated operation of multiple mechanical components, not only the precise adjustment of the blade in different states is achieved, but also greater adaptability is provided while ensuring stability, providing a good operating space for the placement and lifting of the blade.

[0033] 3. The structures of the hanger and the clamp of the present invention match each other and form an organic combination, which significantly improves the accuracy, safety and efficiency of the hoisting process. First, the assembly cavity formed between the top hanger and the bottom hanger provides a stable installation space for the clamp, effectively preventing the clamp from falling off from both sides; in addition, the hanger assembly cavity as a whole forms a U-shaped side opening. When the opening of the clamp is rotated to the inner side of the top of the top hanger, the outer wall of the transmission seat of the clamp is just located at the opening of the assembly cavity, which prevents the blades from loosening and forms a double fixation guarantee; at the same time, the driving gears in the assembly cavity are distributed at intervals along the circumference of the outer peripheral tooth ring of the clamp transmission seat, and the overall distribution is annular, so that the driving gear located at the side opening of the bottom hanger is higher than the driving gear located at the lowest point. In addition to playing a driving role in power transmission, it can also prevent the transmission seat of the clamp from falling from the side opening through the limiting function, further enhancing the stability and safety of the clamp.

[0034] 4. The present invention optimizes the design so that the blades do not need to be transferred multiple times or adjusted frequently during transportation and hoisting. They are placed vertically during transportation. When entering the hoisting operation, the rotation function of the transmission seat and the fine-tuning function of the linkage mechanism only require one adjustment to complete the conversion of the blade direction, the alignment of the opening position, and the fine-tuning of the blade toward the opening. The adjustment process does not require additional complex power source support, and at the same time avoids dependence on redundant components, reduces the complexity of the mechanical structure and the overall weight of the equipment, and saves power source while shortening the time for blade adjustment and installation.

[0035] Compared with traditional solutions that require multiple transfers or directional adjustments, it significantly improves operational efficiency and reduces manufacturing and maintenance costs; the ingenious combination of the modular assembly structure and the linkage mechanism provides flexibility and precision for on-site construction, making the transportation and installation process of the blades more efficient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the overall structure of a fan blade installation device according to Embodiment 1-2 of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall structure of the fan blade installation device of Embodiment 1-2 of the present invention;

[0038] Figure 3 This is a schematic diagram of the assembly structure of the mounting base and the clamping assembly of the fan blade mounting device of Embodiment 1-2 of the present invention;

[0039] Figure 4 This is a schematic diagram of the assembly state of the mounting seat and the transmission seat of the fan blade mounting device of Example 1-2 of the present invention;

[0040] Figure 5 Schematic diagram of partial structural decomposition of the clamp of the fan blade installation device of embodiment 1-2 of the present invention

[0041] Figure 6 for Figure 3 A is an enlarged schematic diagram of the local structure at center A;

[0042] Figure 7 This is a schematic diagram of the overall structure of the hanger of the fan blade mounting device of Example 1-2 of the present invention;

[0043] Figure 8 This is a schematic diagram of the state in which the clamp opening is rotated toward the upper direction in step 2 of embodiment 2 of the present invention.

[0044] In the figure:

[0045] 1. Hanger; 11. Bottom hanger; 111. Reinforced edge; 112. Reinforced block; 113. Limiting frame; 114. Mounting slot; 12. Top hanger; 121. Lifting ear; 122. Mounting portion; 13. Assembly cavity; 14. Roller; 2. Clamp; 21. Transmission seat; 211. Gear ring; 2111. Limiting edge; 212. Transmission base; 2121. Limiting block; 213. Transmission side seat; 2131. Insertion slot; 22. Clamping assembly; 221. Clamping hand; 2211. First clamping arm; 2212. Second clamping arm arm; 2213, splint; 222, support belt; 23, mounting seat; 231, mounting base; 232, mounting side seat; 24, linkage mechanism; 241, connecting rod; 242, linkage slide rod; 243, elastic reset member; 244, slide seat; 25, first driving member; 26, second driving member; 27, limiting slide groove; 28, locking mechanism; 281, locking arm; 2811, contact end; 2812, locking end; 282, locking member; 283, locking slider; 3, rotation driving mechanism; 31, driving gear. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present invention, the technical solutions and advantages of the invention are further described in detail below in conjunction with the accompanying drawings and embodiments. The mechanisms or methods not described in the present invention can refer to the prior art. The specific structure and characteristics of the present invention are described below by way of example, which should not constitute any limitation to the present invention. At the same time, any of the technical features mentioned below (including implicit or disclosed), as well as any technical features directly displayed or implied in the figure, can continue to be arbitrarily combined or deleted between these technical features, so as to form more other embodiments that may not be directly or indirectly mentioned in the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0047] It should be noted that the construction and arrangement of the present invention shown in a number of different exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., size, structure, shape, and proportion of various elements, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments.

[0048] Example 1

[0049] like Figure 1-6 As shown, the present invention provides a wind turbine blade installation device, a wind turbine blade installation device, which is used in the transportation and hoisting operations of wind turbine blades; the hoisting operation refers to hoisting the blades to the top of the tower where the cabin has been assembled, and rotating the blade angle in the air, specifically rotating the vertical rotation to the horizontal rotation, and then completing the docking installation of the blade and the cabin. Of course, this embodiment 1 only takes the wind turbine blade as an example, and the installation device of this scheme can also be used in the transportation or hoisting operations of other long components such as towers.

[0050] refer to Figure 1-2 Specifically, it includes a hanger 1 and a clamp 2 rotatably arranged on the hanger 1; the clamp 2 includes a transmission seat 21, and a clamping assembly 22 for placing and limiting fan blades is provided on the inner side of the transmission seat 21; the clamping assembly 22 is adapted to be installed on the transmission seat 21 through a mounting seat 23; the hanger 1, the transmission seat 21 and the mounting seat 23 are respectively provided with openings for taking and placing fan blades; optionally, the mounting seat is U-shaped and the transmission seat 21 is annular.

[0051] refer to Figure 2The hanger 1 is provided with a rotating drive mechanism 3 which is transmission-connected with the periphery of the transmission seat 21 and drives the transmission seat 21 to rotate; the transmission seat 21 drives the clamping assembly 22 to rotate in the vertical direction under the drive of the rotating drive mechanism 3 to place the fan blades and / or lift the blades; the clamping assembly 22 includes clamping hands 221 for clamping the fan blades from both sides of the fan blades in the vertical direction, and the two clamping hands 221 are respectively rotatably symmetrically arranged on the inner sides of the mounting seat 23; the mounting seat 23 is respectively provided with a linkage mechanism 24 which is transmission-connected with the clamping hands 221 to drive the two clamping hands 221 to clamp the fan blades and move toward the opening.

[0052] refer to Figure 3 In further detail, the clamping hand 221 includes a first clamping arm 2211 and a second clamping arm 2212 which are hinged to each other; the free ends of the first clamping arm and the second clamping arm rotate toward the blade direction and clamp the blade. The mounting seat 23 is provided with a first driving member 25 and a second driving member 26 for driving the first clamping arm 2211 and the second clamping arm 2212 to move closer or farther away; in this embodiment, the first driving member and the second driving member are driving members that can reciprocate and move telescopically, and can be driven by hydraulic rods, cylinders, gear racks or screw rods. In this embodiment, the first driving member is preferably a hydraulic rod type driving member, and the second driving member is a gear rack type driving member; the first driving member and the second driving member can be implemented as long as the power meets the clamping force of the blade.

[0053] In this embodiment, the first clamping arm and the second clamping arm of the clamping hand located on both sides of the blade are arranged in a "〈""〉" hinged connection, and are independently driven, so that the adjustment is more flexible. It is also preferred to set a clamping plate 2213 at the free end of the first clamping arm and the second clamping arm to increase the clamping force area with the blade. In addition, in order to further improve the support force for the blade, a support belt 222 is also provided, and its two ends are respectively connected to the second clamping arms on both sides.

[0054] As one of the key structures of this embodiment, the linkage mechanism 24 includes a connecting rod 241 with one end hinged on the mounting seat 23 and a linkage slide rod 242 transmission connected to the connecting rod 241; the other end of the connecting rod 241 is hinged to the hinge of the first clamp arm 2211 and the second clamp arm 2212; the first end of the linkage slide rod 242 can slide axially along the connecting rod 241, and the second end can slide along the mounting seat 23; an elastic reset member 243 connected to the second end of the linkage slide rod 242 is provided on the mounting seat 23; the second end of the linkage slide rod 242 slides toward the hinge between the connecting rod 241 and the mounting seat 23 driven by the elastic reset member 243.

[0055] Furthermore, the first end and the second end of the linkage slide rod 242 are respectively provided with a slide seat 244, the connecting rod 241 and the mounting seat 23 are provided with a limiting slide groove 27 adapted to the slide seat 244, and both sides of the slide seat 244 extend and are limited in the limiting slide groove 27; one end of the elastic reset member 243 is fixed to the bottom of the limiting slide groove 27, and the other end is connected to the second end of the linkage slide rod 242;

[0056] The connecting rod 241, the linkage slide rod 242, and the elastic reset member 243 form a compression linkage mechanism. The elastic reset member 243 drives the second end of the linkage slide rod 242 to slide toward the hinged connection between the connecting rod 241 and the mounting seat 23 through the slide seat 244, thereby driving the first end of the linkage slide rod 242 to slide toward the hinged connection between the connecting rod 241 and the corresponding first clamp arm 2211 and second clamp arm 2212. In this embodiment, the two ends of the linkage slide rod can slide along the connecting rod and the mounting seat respectively. Since one end of the connecting rod is hinged on the mounting seat, the hinge point is taken as the origin. When the first end of the linkage slide rod slides toward the origin, the second end thereof passively slides in a direction away from the origin, thereby placing the elastic reset member in a stretched state.

[0057] In this embodiment, the elastic reset member is preferably a coil spring whose elastic force satisfies the reset function of this embodiment. In addition, the slide seat can be embedded in the limiting slide groove on both sides, and the movement of the slide seat can be achieved by arranging rollers or rollers on the limiting slide groove to cooperate with the slide seat; or the movement of the slide seat can be achieved by arranging a slide rail in the limiting groove to cooperate with the concave and convex of the bottom of the slide seat to limit the position.

[0058] Optionally, one end of the first driving member 25 and the second driving member 26 are respectively connected to the mounting seat 23, and the other ends are respectively connected to the corresponding first clamping arm 2211 and the second clamping arm 2212; and the first clamping arm 2211 and the second clamping arm 2212 are respectively driven to rotate around the hinge between the two to clamp the fan blades, while the first end of the linkage slide rod 242 slides toward the hinge between the connecting rod 241 and the corresponding first clamping arm 2211 and the second clamping arm 2212 under the reset action of the elastic reset member 243, thereby driving the connecting rod 241 to rotate around one end thereof hinged with the mounting seat 23, so as to drive the first clamping arm 2211 and the second clamping arm 2212 that clamp the blades to move toward the opening as a whole.

[0059] Therefore, when the linkage mechanism of the present embodiment needs to rotate the blade to a horizontal position when replacing a larger blade or entering the lifting stage, the blade of the linkage mechanism moves toward the mounting seat as a whole under the pressure of the blade, and the second clamping arm is driven to clamp the blade by controlling the second driving member; during this process, the action force of the linkage mechanism gradually reaches a balance, and after the clamping action is completed, the pressure of the linkage mechanism begins to decrease, thereby providing conditions for the resetting of the elastic reset member, and the elastic force generated by its stretching is converted into a reset driving force of the linkage slide rod, so that the first end of the linkage slide rod gradually approaches the hinge between the connecting rod and the mounting seat, pushing the connecting rod to rotate around its hinge end, further driving the clamping arm that clamps the blade to move toward the opening direction as a whole, and at the same time having the functions of lifting the blade and slightly sending the blade toward the opening.

[0060] refer to Figure 1-2 7, further introduce the structure of the hanger. Optionally, the hanger 1 includes a bottom hanger 11 and a top hanger 12 covering the bottom hanger 11; a lifting ear 121 connected to a lifting cable is provided above the top hanger 12; the inner cavities of the bottom hanger 11 and the top hanger 12 form the assembly cavity 13; the bottom hanger 11 and / or the top hanger 12 are provided with the rotation drive mechanism 3; in this embodiment, the top hanger and the bottom hanger are both provided with side openings;

[0061] The rotating drive mechanism 3 includes a driving gear 31, and a gear ring 211 meshing with the driving gear 31 is provided on the outer periphery of the transmission seat 21, and a plurality of the driving gears 31 are circumferentially spaced apart along the gear ring 211; in the present embodiment, the driving gears are circumferentially spaced apart along the gear ring, and are also distributed in a ring shape as a whole, and the driving gear at the side opening of the bottom hanger is higher than the driving gear at the lowest point, so that it can not only play a driving role, but also limit the transmission seat of the clamp to prevent it from falling from the side opening, killing two birds with one stone; the driving gear is driven by a power mechanism such as a motor in the prior art, and it can be implemented as long as it can drive the gear to rotate.

[0062] In further details, the outer periphery of the transmission seat 21 is provided with a limit extension 2111 extending outward along both sides of the gear ring 211, and the bottom hanger 12 is provided with a limit frame 113 corresponding to the limit extension 2111, and the limit frame 113 is provided with a plurality of rollers 14 in rolling contact with the limit extension. Two layers of the limit frames 113 are arranged at intervals from top to bottom, and a side of the limit frame corresponding to the limit extension is provided with an arc-shaped assembly surface matching the limit extension; a plurality of rollers 14 are arranged at intervals along the arc-shaped assembly surface; the limit extension of the transmission seat is located between the upper and lower assembly arc surfaces, and its upper surface and lower surface are respectively in rolling contact with the rollers.

[0063] In this embodiment, the upper and lower surfaces of the limit extension cooperate with the arc-shaped assembly surfaces and rollers of the upper limit frame and the lower limit frame to achieve common upper and lower bidirectional limiting, which not only provides sufficient support, but also effectively disperses the load and reduces friction resistance.

[0064] Optionally, three lifting ears 121 are provided at intervals on the outer surface of the top hanger, and the three lifting ears 121 are staggered; reinforcing edges 111 are provided on both sides of the outer wall of the bottom hanger 11 extending horizontally outward, and a plurality of reinforcing blocks 112 are distributed at intervals along the length direction of the reinforcing edges 111.

[0065] In this embodiment 1, three lifting ears are arranged on the outer surface of the top hanger and are staggered, which can effectively disperse the force acting on the lifting ears during the lifting process, reduce the single-point bearing pressure, and reduce the shaking and instability caused by the center of gravity shift or uneven force during the lifting process; in addition, the multiple lifting ears can optimize the lifting angle through the staggered layout to form a more uniform force distribution, thereby improving the safety and stability of the lifting operation.

[0066] In order to further improve the installation efficiency and convenience of the top hanger of the present invention, the top hanger is provided with a mounting portion 122 extending toward the bottom hanger, and the bottom hanger 11 is provided with a mounting groove 114 corresponding to the mounting portion 122 for plug-in connection or splicing connection; or, the bottom hanger is provided with the mounting portion, and the top hanger is provided with the mounting groove. For example, the mounting portion can be formed on the periphery of the side wall of the top hanger, and the mounting groove of the bottom hanger is concave in the periphery of the side wall, and the two are mutually concave and convex to limit each other, guiding the top hanger to be mounted on the bottom hanger; further, the inner side of the top hanger can also be provided with a strip-shaped mounting portion and a plug-in mounting groove corresponding to the bottom hanger, which is double-guided, so that the assembly of the top hanger and the bottom hanger is faster, more accurate, and error-free.

[0067] In the present embodiment 1, an assembly cavity 13 for installing the clamp is formed between the top hanger and the bottom hanger, specifically, the top of the top hanger extends toward the bottom hanger, and the two sides of the bottom plate of the bottom hanger extend toward the top hanger; the horizontal opening of the assembly cavity is roughly U-shaped; the clamp is placed in the assembly cavity and cannot be separated from the two sides; this design also has the advantage that when the installation equipment hoists the blade into the air and docks with the cabin, when the opening of the clamp is rotated upward to face the top inner side of the top hanger (combined with Figure 1 , 8 As shown in the figure, the outer wall of the transmission seat of the clamp is located at the opening of the assembly cavity, which plays a double guarantee fixing role for the stable clamping of the blade.

[0068] In this embodiment 1, the outer wall of the bottom hanger 11 has a horizontally extending limit extension 111, and a plurality of reinforcement blocks 112 are arranged at intervals on the limit extension, which not only extends the support area of ​​the bottom hanger, but also further enhances its rigidity and stability through the reinforcement blocks distributed at intervals. During transportation, the contact pressure between the bottom hanger and the transportation device or the hull can be effectively dispersed to prevent the surface of the transportation platform or the hull structure from being damaged due to concentrated pressure.

[0069] refer to Figure 4-5 Optionally, the transmission seat 21 includes a transmission base 212 and transmission side seats 213 plugged and connected to both sides of the transmission base 212; the transmission base 212 and the two transmission side seats 213 are respectively provided with racks on the periphery, and are sequentially butt-jointed and spliced ​​to form the gear ring 211;

[0070] The transmission base 212 is provided with a limit block 2121 extending toward the transmission side seat 213 on both sides, and the two transmission side seats 213 are respectively provided with an insertion slot 2131 adapted to be inserted with the limit block 2121, and the insertion slot 2131 is respectively provided with a side opening facing the limit block 2121;

[0071] The mounting seat 23 includes a mounting base 231 and mounting side seats 232 inserted and connected on both sides of the mounting base 231; the mounting base 231 and / or the mounting side seat 232 are respectively locked and connected to the transmission base 212 and / or the transmission side seat 213 through the locking mechanism 28; the two first clamping arms 2211 and the second clamping arms 2212 are hinged to each other and are respectively hinged to the corresponding mounting side seats 232 through the connecting rod 241.

[0072] The transmission base and the mounting base of this embodiment adopt a modular design, which is convenient for component production and assembly, and are assembled by plug-in limiting. The limit blocks on both sides of the transmission base are precisely matched with the insertion slots of the transmission side seat. The side opening design of the insertion slot provides an intuitive alignment guide function, ensuring that the limit blocks can be quickly inserted into place, and the locking structure is used to further quickly lock and complete the assembly. During assembly, the mounting base and the transmission base can be assembled first, and then the clamping assembly can be assembled with the mounting side seat respectively, and the mounting side seat and the clamping assembly can be hoisted as a whole onto the mounting base. Finally, the transmission side seat can be hoisted from both sides toward the mounting side seat, and the insertion with the transmission base and the locking connection with the mounting side seat can be completed at the same time.

[0073] refer to Figure 4Optionally, the locking mechanism 28 includes a locking arm 281, a locking member 282, and a locking slider 283 for driving the locking arm 281 to open or close to lock the locking member 282, which is arranged between the mounting base 231 and the transmission base 212 or between the mounting side seat 232 and the transmission side seat 213; the locking slider 283 has a trapezoidal cross section; the locking arm 281 includes a contact end 2811 and a locking end 2812, and the contact end 2811 and the locking slider The inclined surfaces on both sides of 283 are in sliding contact; the width of the locking slider 283 gradually decreases toward the direction of the locking arm 281; when the contact end 2811 slides to one end of the locking slider 283 close to the locking arm 281, the locking arm 281 is in an unlocked state; when the contact end 2811 slides to the other end of the locking slider 283 away from the locking arm 281, the locking arm 281 is in a locked state; the locking slider 283 is driven by an oil cylinder, an air cylinder, a gear rack, or a pneumatic drive.

[0074] In this embodiment, the locking arm can be a clamping locking arm or an articulated locking arm. When a clamping locking arm is used, the locking member can be a clamped limit rod; when an articulated locking arm is used, the locking arm can be located on the transmission side seat, and the locking member can be a flexible locking belt spaced apart on the same side as the locking slider, and the end of the locking arm can enter the flexible locking belt and tighten it by rotating.

[0075] The locking structure of the transmission seat and the mounting seat of the present invention is optimized in design, which significantly simplifies the assembly process. The locking arm and the locking slider are matched through a trapezoidal cross-section and an inclined sliding mechanism, and the locking arm can be automatically locked or unlocked under the push of the slider by utilizing the principle of shape mechanics. It is not only simple to operate, but also has a high fault tolerance rate and can adapt to changes in different positions and angles, thereby achieving precise locking of the transmission seat and the mounting seat. Compared with traditional locking methods, this structure greatly reduces the requirements for component processing accuracy, and the locking is more reliable, avoiding deformation and loosening of materials caused by vibration, external impact, long-term use, temperature difference, etc. during daily transportation or use.

[0076] In addition, a modular plug-in assembly method is adopted between the transmission seat and the mounting seat. The limit blocks on both sides of the transmission base are precisely matched with the plug-in slots of the transmission side seat. The side opening design of the plug-in slot provides an intuitive alignment guide function, ensuring that the limit blocks can be quickly inserted into place, and the locking structure is used to further quickly lock and complete the assembly, reducing the lifting weight. This not only reduces the manufacturing cost, but also simplifies the assembly and debugging process.

[0077] Example 2

[0078] This embodiment 2 provides a method for installing a fan blade, including the above-mentioned fan blade installation device, and the blade installation method includes the following steps:

[0079] S1. Release the connection between the top hanger 12 and the bottom hanger 11, and then lift the top hanger 12 away from the bottom hanger 11 by a lifting device, so that the fixture 2 is exposed in the blade loading area; specifically, as Figure 8 As shown, the rear side of the bottom hanger is concavely provided with a mounting groove that cooperates with the top hanger. During hoisting, the guiding effect of the groove enables the top hanger to be quickly fitted and mounted above the bottom hanger; this ensures that the top hanger is accurately positioned during hoisting.

[0080] S2. References Figure 8 , drive the transmission seat 21 to rotate in the vertical direction, adjust the direction of the opening, lift the blade and place it in the fixture 2, and clamp it through the clamping assembly 22; then install the top hanger 12 on the bottom hanger 11 and lock it to complete the blade loading; specifically, the top hanger is hoisted above the bottom hanger, and the top hanger assembly deviation can be quickly guided and prevented through the concave installation groove set in the circumferential direction of the rear side of the bottom hanger and the concave and convex limit of the outer mounting part of the top hanger side wall. Further, the strip-shaped mounting part set on the inner side of the top hanger cooperates with the plug-in mounting groove corresponding to the bottom hanger to provide double guidance. Then the hanger assembly is quickly completed through fasteners.

[0081] S3. Lift the hanger 1, the clamp 2 and the blade as a whole to the target position, which usually refers to the target position for docking with the nacelle at the top of the tower, and then drive the transmission seat 21 to drive the clamping assembly 22 to rotate, rotate the blade and dock it with the nacelle through conventional implementation means; after the blade and the nacelle are docked, the hanger 1 and the clamp 2 are separated from the blade from the side of the blade as a whole.

[0082] During the wind turbine blade hoisting process of the present embodiment, there are generally two sets of wind turbine blade installation equipment, which are respectively located at the head and tail ends of the wind turbine blade, and are respectively hung on the lifting ears through hoisting cables (not shown in the drawings) to lift the blade as a whole.

[0083] Optionally, in S2, the transmission seat 21 is driven to be placed with the opening facing upward; the blade is lifted vertically by a lifting device and placed on the fixture;

[0084] In S3, after the blade is rotated to the horizontal direction, the blade applies pressure to the first clamping arm 2211 and the second clamping arm 2212 at the bottom thereof, and drives the connecting rod 241 to rotate around its hinged end toward the mounting seat 23. The linkage slide rod 242 is passively stressed, and its first end moves toward the direction close to the hinged portion between the connecting rod 241 and the mounting seat 23, while the second end moves toward the direction away from the hinged portion between the connecting rod 241 and the mounting seat 23, and the reset elastic member is in a stretched state.

[0085] By driving the second driving member 26 to push the second clamping arm 2212 to rotate around the hinge between it and the first clamping arm 2211 and clamp and push the blade, the elastic reset member 243 is reset, and the first end of the linkage slide rod 242 slides toward the hinge between the connecting rod 241 and the corresponding first clamping arm 2211 and the second clamping arm 2212 under the reset action of the elastic reset member 243, thereby driving the connecting rod 241 to rotate around one end hinged with the mounting seat 23, so as to drive the first clamping arm 2211 and the second clamping arm 2212 that clamp the blade to move toward the opening as a whole.

[0086] It should be noted that the present invention also includes but is not limited to control systems, sensing modules and other necessary devices or components for transportation and lifting operations. The present invention does not involve improvements to their structures, so they will not be elaborated.

[0087] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. For ordinary technicians in this field, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fan blade installation device, used in the transportation and hoisting operations of fan blades; characterized in that: It includes a hanger and a clamp rotatably arranged on the hanger; the clamp includes a transmission seat, and a clamping assembly for placing and limiting fan blades is provided on the inner side of the transmission seat; the clamping assembly is installed on the transmission seat through a mounting seat; the hanger, transmission seat and mounting seat are respectively provided with openings for taking and placing fan blades; the hanger is provided with a rotating drive mechanism that is transmission-connected to the outer periphery of the transmission seat and drives the transmission seat to rotate; the transmission seat drives the clamping assembly to rotate in a vertical direction under the drive of the rotating drive mechanism to place the fan blades and / or lift the blades; the clamping assembly includes clamps for clamping the fan blades from both sides of the fan blade in the vertical direction, and the two clamps are respectively rotatably and symmetrically arranged on the inner side of the mounting seat; the mounting seat is respectively provided with linkage mechanisms that are transmission-connected to the clamps to drive the two clamps to clamp the fan blades and move toward the openings.

2. The fan blade installation device according to claim 1, characterized in that: The clamping hand includes a first clamping arm and a second clamping arm hinged to each other; a first driving member and a second driving member for driving the first clamping arm and the second clamping arm to move closer or farther away are respectively provided on the mounting seat; the linkage mechanism includes a connecting rod hinged at one end on the mounting seat and a linkage sliding rod transmission connected to the connecting rod; the other end of the connecting rod is hinged to the hinge of the first clamping arm and the second clamping arm; the first end of the linkage sliding rod can slide axially along the connecting rod, and the second end can slide along the mounting seat; an elastic reset member connected to the second end of the linkage sliding rod is provided on the mounting seat; the second end of the linkage sliding rod slides toward the hinge of the connecting rod and the mounting seat driven by the elastic reset member.

3. The fan blade installation device according to claim 2, characterized in that: The first end and the second end of the linkage slide rod are respectively provided with a slide seat, and the connecting rod and the mounting seat are provided with a limiting slide groove adapted to the slide seat, and both sides of the slide seat extend and are restricted in the limiting slide groove; one end of the elastic reset member is fixed to the bottom of the limiting slide groove, and the other end is connected to the second end of the linkage slide rod; the elastic reset member drives the second end of the linkage slide rod to slide toward the hinged joint of the connecting rod and the mounting seat through the slide seat, thereby driving the first end of the linkage slide rod to slide toward the hinged joint of the connecting rod and the corresponding first clamp arm and second clamp arm.

4. The fan blade installation device according to claim 3, characterized in that: One end of the first driving member and the second driving member are respectively connected to the mounting seat, and the other ends are respectively connected to the corresponding first clamping arm and second clamping arm in transmission connection; and the first clamping arm and the second clamping arm are respectively driven to rotate around the hinge between the two to clamp the fan blades, and the first end of the linkage slide rod slides toward the hinge between the connecting rod and the corresponding first clamping arm and second clamping arm under the reset action of the elastic reset member, thereby driving the connecting rod to rotate around one end thereof hinged with the mounting seat, so as to drive the first clamping arm and the second clamping arm that clamp the blades to move toward the opening as a whole.

5. The wind turbine blade installation device according to any one of claims 2 to 4, characterized in that: The hanger comprises a bottom hanger and a top hanger covering the bottom hanger; a lifting ear connected to a lifting cable is provided above the top hanger; the inner cavities of the bottom hanger and the top hanger form an assembly cavity with a side opening; the bottom hanger and / or the top hanger are provided with the rotation drive mechanism; The rotation drive mechanism includes a driving gear, a gear ring meshing with the driving gear for transmission is provided on the outer periphery of the transmission seat, and a plurality of the driving gears are distributed at intervals along the circumference of the gear ring; a limiting extension is provided on the outer periphery of the transmission seat and extends outward along both sides of the gear ring, a limiting frame corresponding to the limiting extension is provided on the bottom hanger, and a plurality of rollers are provided on the limiting frame and in rolling contact with the limiting extension.

6. The wind turbine blade installation device according to claim 5, characterized in that: The outer surface of the top hanger is provided with three lifting ears at intervals, and the three lifting ears are staggered; the top hanger is provided with a mounting portion extending toward the bottom hanger, and the bottom hanger is provided with a mounting groove corresponding to the mounting portion for plug-in connection or splicing connection; or, the bottom hanger is provided with the mounting portion, and the top hanger is provided with the mounting groove; both sides of the outer wall of the bottom hanger are provided with reinforcing edges extending horizontally outward, and a plurality of reinforcing blocks are distributed at intervals along the length direction of the reinforcing edges.

7. The wind turbine blade installation device according to claim 6, characterized in that: The transmission seat comprises a transmission base and transmission side seats plugged and connected to both sides of the transmission base; the transmission base and the two transmission side seats are respectively provided with racks on their outer circumferences, and are sequentially butted and spliced ​​to form the gear ring; The transmission base is provided with limit blocks extending toward the transmission side seat on both sides, and the two transmission side seats are respectively provided with insertion grooves adapted to be inserted with the limit blocks; The mounting seat includes a mounting base and mounting side seats plugged and connected on both sides of the mounting base; the mounting base and / or the mounting side seat are respectively locked and connected to the transmission base and / or the transmission side seat through a locking mechanism; the two first clamping arms and the second clamping arms are hinged to each other and then hinged to the corresponding mounting side seats through the connecting rod.

8. The wind turbine blade installation device according to claim 7, characterized in that: The locking mechanism includes a locking arm, a locking member and a locking slider which is arranged between the mounting base and the transmission base or between the mounting side seat and the transmission side seat to open or close the driven locking arm; the cross-section of the locking slider is trapezoidal; the locking arm includes a contact end and a locking end, and the contact end is in sliding contact with the inclined surfaces on both sides of the locking slider; the width of the locking slider gradually decreases toward the direction of the locking arm; when the contact end slides to one end of the locking slider close to the locking arm, the locking arm changes from a locked state to an unlocked state.

9. A method for installing a fan blade, characterized in that: The fan blade installation device according to claim 5-8 is included, and the blade installation method comprises the following steps: S1. Release the connection between the top hanger and the bottom hanger, and then lift the top hanger away from the bottom hanger by a lifting device so that the fixture is exposed in the blade loading area; S2. Drive the transmission seat to rotate in the vertical direction, adjust the direction of the opening, lift the blade and place it in the fixture, and clamp it through the clamping assembly; then install the top hanger on the bottom hanger and lock it to complete the blade loading; S3. Lift the hanger, the clamp and the blade as a whole to the target position, drive the transmission seat to drive the clamp to rotate, rotate the blade, and after the blade and the nacelle are docked, separate the hanger and the clamp as a whole from the side of the blade.

10. The method for installing a fan blade according to claim 9, characterized in that: In S3, after the blade is rotated to the horizontal direction, the blade applies pressure to the first clamp arm and the second clamp arm at the bottom thereof, the connecting rod is pressed and rotates around its hinge end toward the mounting seat, the first end of the linkage slide rod moves toward the hinged portion between the connecting rod and the mounting seat, and the second end moves away from the hinged portion between the connecting rod and the mounting seat, and the reset elastic member is in a stretched state; The second driving member is driven to push the second clamping arm to rotate and clamp and push the blade. The first end of the linkage slide rod slides toward the hinge between the connecting rod and the corresponding first clamping arm and second clamping arm under the reset action of the elastic reset member, and the connecting rod is driven to rotate around one end hinged with the mounting seat to drive the first clamping arm and the second clamping arm that clamp the blade to move toward the opening as a whole.

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