A lifting device for wind turbine maintenance

Abstract

The present application relates to the technical field of overhaul lifting device, and discloses a lifting device for wind power equipment overhaul, comprising: a mounting; a plurality of clamping parts are symmetrically arranged on the mounting, and the clamping parts are driven to reciprocate on the mounting; an elastic abutting assembly and / or a clamping assembly are arranged on the clamping part; the elastic abutting assembly has a plurality of abutting pieces arranged in the vertical direction, and the abutting pieces are used for abutting to the outer side surface of the to-be-clamped part; the clamping assembly has a clamping piece which is driven to be telescopically arranged in the vertical direction, and the clamping piece is used for clamping to the inner edge of the to-be-clamped part, the present application limits the to-be-clamped part from the side through the elastic abutting assembly, and limits the to-be-clamped part from below through the clamping assembly, so as to fix the to-be-clamped part, reduce the shaking, sliding and falling of the to-be-clamped part in the lifting process as much as possible, realize the stable clamping of the to-be-clamped part, and improve the operation safety of the wind power equipment overhaul operation.

Description

Technical Field

[0001] This invention relates to the field of maintenance lifting equipment technology, specifically to a lifting device for the maintenance of wind power generation equipment. Background Technology

[0002] The electromechanical equipment of a wind turbine is usually installed inside its nacelle. When the electromechanical equipment fails, the nacelle cover needs to be disassembled and lifted by a lifting device to separate the nacelle cover from the turbine body, so as to facilitate the inspection and replacement of the electromechanical equipment.

[0003] The existing design uses a lifting frame for hoisting. The lifting frame is equipped with a sliding rail, and an installation beam is installed on the sliding rail. A lifting seat is installed below the installation beam, and a drive device is installed on the lifting seat. A protective arm is installed at the drive end of the drive device. The protective arm is rotatably mounted on the lifting seat. The drive device drives one end of the L-shaped protective arm to rotate, so that the other end of the L-shaped protective arm is engaged with the lower edge of the inside of the top cover.

[0004] When it is necessary to lift the engine cover, since the shape of the engine cover is not a regular shape such as a rectangle, it may have curved or irregular parts. However, the existing lifting devices can mostly only clamp the regular parts of the outer wall of the engine cover when lifting it, and it is difficult to clamp the curved or irregular parts. As a result, the engine cover cannot be fixed, which can easily lead to the engine cover loosening and shaking during lifting. This is not conducive to the stable lifting of the engine cover and affects the rapid maintenance of electromechanical equipment. Summary of the Invention

[0005] This invention provides a lifting device for the maintenance of wind power generation equipment, which solves the problem that existing lifting devices cannot effectively clamp and fix the curved or irregular parts of the nacelle cover.

[0006] In a first aspect, the present invention provides a lifting device for the maintenance of wind power generation equipment, comprising: Installation components; Multiple clamping parts are symmetrically arranged on the mounting component, and the clamping parts are driven to reciprocate in the length or width direction of the mounting component. The clamping part is provided with an elastic abutment component and / or a snap-fit ​​component; The elastic abutment assembly has a plurality of abutment members arranged in a vertical direction, and the abutment members are retractably arranged in a horizontal direction on the clamping part. The abutment members are used to abut against the outer end face of the part to be clamped. The snap-fit ​​assembly has a snap-fit ​​member that is driven to extend and retract in a vertical direction. The snap-fit ​​member is located below the abutment member and is used to snap onto the inner edge of the member to be clamped.

[0007] Beneficial effects: By using the side positioning of the elastic abutment component and the locking component to clamp from below, the risk of shaking, sliding and falling off of the clamped part during the lifting process can be effectively suppressed, so as to achieve a stable clamping of the clamped part and improve the operational safety of wind power equipment maintenance.

[0008] In one optional embodiment, the clamping part is provided with a first receiving cavity, and a plurality of first elastic elements are arranged in the first receiving cavity along the vertical direction. The driving end of each first elastic element is connected to the abutment, and the elastic element has a force that drives the abutment to move toward the clamping part.

[0009] Beneficial effects: By setting multiple first elastic elements in the first receiving cavity and connecting the driving end of each first elastic element to the abutment, a continuous and stable elastic force can be provided to the abutment, and the abutment always moves toward the object to be clamped, thereby fixing the object to be clamped.

[0010] In one optional embodiment, the clamping part is provided with a second receiving cavity, the second receiving cavity is provided with at least one second elastic member, and the driving end of the second elastic member is connected to the snap-fit ​​member.

[0011] Beneficial effects: By arranging at least one second elastic element in the second receiving cavity and connecting the driving end of the second elastic element to the snap-fit ​​element, a reliable elastic force can be provided for the vertical telescopic movement of the snap-fit ​​element, ensuring that the snap-fit ​​element always clamps the inner edge of the object to be clamped during operation.

[0012] In one optional embodiment, the clamping part includes: a first connecting plate and a second connecting plate arranged perpendicularly to each other, the second connecting plate being vertically arranged, the first connecting plate being disposed at one end of the second connecting plate along its length direction, and the first connecting plate extending horizontally toward the workpiece to be clamped.

[0013] Beneficial effects: By setting the first connecting plate and the second connecting plate perpendicular to each other, with the first connecting plate extending horizontally toward the workpiece to be clamped and the second connecting plate set vertically, the clamping part can support the workpiece to be clamped, thus preventing the workpiece from falling off due to uneven force.

[0014] In one optional embodiment, the mounting component is provided with a driving device, the driving end of the driving device is fixedly connected to the clamping part, and the driving device is used to drive the clamping part to move.

[0015] Beneficial effects: By fixing the drive device to the clamping part, the position of the clamping part can be adjusted according to the size of the workpiece to be clamped, thereby adapting to different types of workpieces to be clamped.

[0016] In one optional embodiment, the mounting component is symmetrically provided with a first driving member, and the driving end of the first driving member is provided with the clamping part. The first driving member drives the clamping part to reciprocate toward the object to be clamped.

[0017] Beneficial effects: By symmetrically arranging the first driving member on the mounting component and connecting the driving end of the first driving member to the clamping part, the clamping part moves closer to or away from the workpiece to be clamped, thus achieving stable clamping of workpieces of different sizes.

[0018] In one optional embodiment, a second driving member is provided on the mounting member along the length direction of the mounting member, and the first driving member is fixedly disposed at the driving end of the second driving member. The second driving member is used to drive the clamping part to reciprocate along the length direction of the mounting member.

[0019] Beneficial effects: The second driving component drives the first driving component and the clamping part to move along the length direction of the mounting component, adjusts the position of the clamping part in the horizontal direction, moves the clamping part to the position of the part to be clamped, and uses parts of different lengths to be clamped.

[0020] In one optional embodiment, the driving end of the first driving member is provided with a third driving member, and the driving end of the third driving member is provided with the clamping part. The third driving member is used to drive the clamping part to move in the vertical direction.

[0021] Beneficial effect: The clamping part is adjusted vertically by the third driving component to adapt to the different positional requirements of the clamped part in the height direction.

[0022] In one alternative embodiment, at least one negative pressure element is provided on the lower end face of the mounting component.

[0023] Beneficial effects: The negative pressure component generates an adsorption force, which adsorbs the workpiece to be clamped, preventing the workpiece from slipping during operation.

[0024] In one alternative embodiment, a lifting ring is provided on the upper end face of the mounting component.

[0025] Beneficial effects: The lifting ring is connected to external lifting equipment, and after the object to be clamped is installed in position, it can be moved by the lifting ring. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a perspective view of a lifting device for the maintenance of wind power generation equipment according to an embodiment of the present invention; Figure 2 for Figure 1 The lifting device used for the maintenance of wind power equipment is shown from another perspective in a three-dimensional view. Figure 3 for Figure 2 A three-dimensional sectional view of the drive unit; Figure 4 for Figure 1 A bottom-view 3D view of the connecting blocks in the diagram; Figure 5 for Figure 4 A three-dimensional sectional view of the connecting block in the diagram; Figure 6 for Figure 3 Enlarged view of part A in the image; Figure 7 for Figure 1 A three-dimensional view of the lifting device used for the maintenance of wind power equipment from another perspective; Figure 8 for Figure 7 A three-dimensional view of a lifting device used for the maintenance of wind power equipment from another perspective.

[0028] Explanation of reference numerals in the attached figures: 1. Mounting component; 2. Connecting block; 3. Lifting ring; 4. Connecting component; 5. Clamping part; 6. Drive unit; 61. Second drive component; 611. Bidirectional lead screw; 612. First motor; 613. First slider; 614. Moving seat; 62. First drive component; 621. Horizontal bar; 622. Second motor; 623. Second slider; 624. First lead screw; 625. First lead screw seat; 63. Third drive component; 631. Vertical bar; 632. Third motor; 633. Second lead screw; 634. Second lead screw seat; 7. Elastic abutment component; 71. Abutment contact head; 72. Mounting frame; 73. First movable plate; 74. First elastic element; 75. Abutment component; 8. Snap-fit ​​component; 9. Negative pressure component; 10. Air pump; 11. Electric push rod; 12. Second movable plate; 13. Second elastic component; 14. Guide rod. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0031] like Figures 1 to 6 As shown, according to an embodiment of the present invention, a lifting device for the maintenance of wind power generation equipment is provided, comprising: a mounting member 1, a clamping part 5, an elastic abutment assembly 7, and a snap-fit ​​assembly. The clamping part 5 is symmetrically arranged on the mounting member 1 and is driven to reciprocate in the length or width direction of the mounting member 1, thereby adapting to clamping parts of different lengths or widths. The elastic abutment assembly 7 is disposed on the clamping part 5 and has a plurality of abutment members 75 arranged vertically. The abutment members 75 are retractably disposed on the clamping part 5 in the horizontal direction and are used to abut against the outer end face of the part to be clamped. The snap-fit ​​assembly has a snap-fit ​​member 8 that is driven to retract vertically, and the snap-fit ​​member 8 is disposed below the abutment members 75 for snapping into the inner edge of the part to be clamped.

[0032] During implementation, the part to be clamped is first placed in the preset position of the mounting part 1. At this time, the clamping part 5 moves along the length or width direction of the mounting part 1 under the action of the driving mechanism until the abutment 75 on the clamping part 5 contacts the outer end face of the part to be clamped. As the clamping part 5 moves, the abutment 75 retracts horizontally under the pressure of the part to be clamped, so that the abutment 75 abuts against the outer end face of the part to be clamped, thereby limiting the clamping of the part. At this time, the locking part 8 moves to a position below the inner edge of the part to be clamped, so that it locks into the inner edge of the part to be clamped, further securing the part to be clamped and ensuring the stability and safety of the maintenance tool or parts during transportation.

[0033] The elastic abutment component 7 limits the clamping of the part from the side, and the snap-fit ​​component limits the clamping of the part from below, thus fixing the part to be clamped. This minimizes the shaking, sliding and falling off of the part during the lifting process, achieving a stable clamping of the part and improving the operational safety of wind power equipment maintenance.

[0034] Specifically, the component to be clamped is the nacelle cover of a wind turbine generator. Alternatively, the component to be clamped can also be other parts, such as a car hood.

[0035] Specifically, only the elastic abutment component 7 can be provided. In this case, clamping and fixing are achieved through the tight abutment of the abutment 75 with the outer end face of the part to be clamped, simplifying the structure and reducing manufacturing costs. At the same time, basic clamping stability requirements can still be met in scenarios where the part to be clamped has a regular shape and is relatively light. Alternatively, only the snap-fit ​​component can be provided. In this case, the snap-fit ​​component 8 is snapped into the lower inner edge of the part to be clamped, and fixing is achieved by the mechanical engagement between the snap-fit ​​component 8 and the inner edge. This is suitable for situations where the part to be clamped has a distinct inner edge structure and high load-bearing capacity requirements, providing direct support from below and preventing the part to be clamped from falling due to its own weight.

[0036] like Figure 3 As shown, in this embodiment, the clamping part 5 is provided with a first receiving cavity, and a plurality of first elastic elements 74, which are springs, are arranged vertically inside the first receiving cavity. The driving end of each first elastic element 74 is connected to the abutment 75, and the elastic element has a force that drives the abutment 75 to move toward the workpiece to be clamped. The elastic force of the first elastic element 74 continuously pushes the abutment 75 closer to the workpiece to be clamped, ensuring that the abutment 75 is in close contact with the outer end face of the workpiece to be clamped during the lifting process, thereby ensuring the stability of the clamping. It should be noted that, as an alternative implementation, the first elastic element 74 can also be a linear electric cylinder.

[0037] Specifically, the elastic abutment assembly 7 includes a mounting frame 72 installed on the outside of the clamping part 5. The mounting frame 72 forms a first receiving cavity, which is hollow. The cavity has an opening on the side facing the part to be clamped. Multiple first elastic elements 74, evenly spaced vertically, are installed in the cavity. One end of each first elastic element 74 is connected to a first movable plate 73. The width of the first movable plate 73 is greater than the width of the cavity opening, thus preventing the first elastic element 74 from sliding out of the opening. An abutment member 75 is fixedly mounted on the first movable plate 73, and the two are fixedly connected by bolts. Specifically, one end of the abutment member 75 is provided with a flexible abutment head 71. In implementation, the elastic force provided by the first elastic element 74 drives the first movable plate 73 and the abutment member 75 to move outward, and the abutment head 71 abuts against the outer end face of the part to be clamped. Specifically, the abutment head 71 is made of rubber to enhance friction.

[0038] Specifically, there are four clamping parts 5 and four elastic abutment components 7. The elastic abutment components 7 are respectively arranged inside the four clamping parts 5. Specifically, each set of elastic abutment components 7 is installed in the mounting frame 72 of the corresponding clamping part 5, and the mounting frame 72 is fixed to the outer wall of the clamping part 5.

[0039] During wind power equipment maintenance, the elastic abutment assembly 7 places the disassembled nacelle cover inside the four clamping parts 5. When the nacelle cover is placed on the clamping parts 5, the clamping parts 5 are activated to move inward, and the abutment heads 71 ​​will abut against the outer wall of the nacelle cover. At this time, the abutment member 75 will push the first movable plate 73 to move along the cavity and compress the first elastic member 74 under the compression of the nacelle cover, so that the multiple abutment heads 71 ​​can adaptively expand and contract according to the shape of the nacelle cover and evenly abut against the outer wall of the nacelle cover. This can achieve stable installation of nacelle covers of different shapes, which is conducive to the stable lifting of the nacelle cover after disassembly.

[0040] like Figure 6 As shown, in this embodiment, the clamping part 5 is provided with a second receiving cavity, and the second receiving cavity is provided with at least one second elastic element 13, which is a spring. The driving end of the second elastic element 13 is connected to the latching member 8, and the second elastic element 13 provides a reset or pre-tightening force to the latching member 8, so that the latching member 8 can maintain the optimal latching position according to the change of the inner edge of the clamped part, effectively preventing the clamped part from accidentally slipping off during the lifting process. It should be noted that, as an alternative implementation, a linear electric cylinder with a pressure sensor can also be provided on the clamping part 5, and the latching member 8 can be provided on the driving end of the linear electric cylinder.

[0041] Specifically, the second receiving cavity is specifically formed on the clamping part 5, located below the snap-fit ​​member 8. A second movable plate 12 is also provided in the second receiving cavity, and a second elastic member 13 is mounted on the second movable plate 12. The second receiving cavity has an opening, and the width of the second movable plate 12 is greater than the width of the opening of the second receiving cavity, thereby preventing the second movable plate 12 from sliding out. The driving end of the second elastic member 13 can directly act on the second movable plate 12, thereby driving the snap-fit ​​member 8 to move vertically, thus realizing the telescopic adjustment of the snap-fit ​​member 8 to adapt to different sizes of cabin covers. When a smaller, perforated cabin cover needs to be received, the second elastic member 13 pushes the second movable plate 12 and the snap-fit ​​member 8 out of the second receiving cavity to snap onto the inner edge of the cabin cover, preventing slippage. When facing a larger cabin cover, the bottom end of the cabin cover presses down on the snap-fit ​​member 8 to compress the second elastic member 13 and retract it into the second receiving cavity, thereby freeing up space for the cabin cover to be placed stably, ensuring that the clamping part 5 can adapt to different sizes of clamped parts. Specifically, a guide rod 14 is fixedly installed inside the second receiving cavity, the lower end of the snap-fit ​​member 8 is slidably mounted on the guide rod 14, and the second elastic member 13 is sleeved on the outside of the guide rod 14. By setting the guide rod 14, the movement of the snap-fit ​​member 8 is limited.

[0042] like Figure 3As shown, in this embodiment, the clamping part 5 includes a first connecting plate and a second connecting plate arranged perpendicularly to each other, with the second connecting plate being vertically arranged. The first connecting plate is disposed at one end of the second connecting plate along its length direction, and extends horizontally toward the object to be clamped. An elastic abutment component 7 is disposed on the second connecting plate, and a snap-fit ​​component is disposed on the first connecting plate, enabling the clamping part 5 to simultaneously provide effective support and limitation for the wind power generation equipment from both its outer end face and inner edge. It should be noted that, as an alternative implementation, the first connecting plate and the second connecting plate can be detachably connected by bolts. In addition, the upper end face of the first connecting plate may also be provided with anti-slip texture.

[0043] like Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, in this embodiment, a driving device 6 is provided on the mounting member 1, and the driving end of the driving device 6 is fixedly connected to the clamping part 5. The driving device 6 is used to drive the clamping part 5 to move. The driving device 6 includes a first driving member 62. The first driving member 62 is symmetrically arranged on the mounting member 1, and the driving end of the first driving member 62 is provided with the clamping part 5. The first driving member 62 drives the clamping part 5 to reciprocate toward the workpiece to be clamped, thereby adjusting the clamping part 5 in the Y direction. The symmetrical arrangement of the first driving member 62 can ensure that the clamping parts 5 on both sides move synchronously, avoiding the tilting of the workpiece to be clamped due to uneven force. In practice, when the clamping part 5 contacts the surface of the workpiece to be clamped, the pressure sensor built into the driving device 6 will monitor the clamping force in real time. Once the preset threshold is reached, the driving will automatically stop to prevent over-clamping and damage to the surface of the workpiece to be clamped. It should be noted that, as an alternative implementation, the driving device 6 can also be set as a three-axis driven robotic arm.

[0044] Specifically, the first driving component 62 includes a first motor 612 mounted on a crossbar 621 and mounted on one side of the crossbar 621. A movable cavity is formed inside the crossbar 621, and a first lead screw 624 is rotatably mounted within the movable cavity. A first lead screw seat 625 is threaded onto the first lead screw 624. When the first motor 612 drives the first lead screw 624 to rotate, it causes the first lead screw seat 625 to move along the axial direction of the first lead screw 624. Specifically, the upper end of the first lead screw seat 625 abuts against the lower end face of the movable cavity, limiting its movement.

[0045] like Figure 2As shown, in this embodiment, a second driving member 61 is provided on the mounting member 1 along its length direction, and a first driving member 62 is fixedly disposed at the driving end of the second driving member 61. The second driving member 61 is used to drive the clamping part 5 to reciprocate along the length direction of the mounting member 1. The second driving member 61 cooperates with the first driving member 62 to realize the movement of the clamping part 5 in the X-direction, meeting the installation requirements of different specifications of cabin covers. It should be noted that, as an alternative implementation, the second driving member 61 may not be provided, and the clamped part can also be moved by the first driving member 62.

[0046] Specifically, the second driving component 61 includes a second motor 622, a movable seat 614, and a bidirectional lead screw. The bidirectional lead screw is mounted on the mounting component 1 and has two threaded sections with opposite directions. Each threaded section has a movable seat 614, which is threadedly connected to the bidirectional lead screw. A first slider 613 is fixedly mounted on the movable seat 614. When the second motor 622 drives the bidirectional lead screw to rotate, the two movable seats 614 move synchronously in opposite directions on the bidirectional lead screw, simultaneously driving the first slider 613 to slide along the length of the mounting component 1. This allows the first driving component 62 fixed on the movable seat 614 and the clamping part 5 connected to the first driving component 62 to adjust their position along the length of the mounting component 1. Because the two threaded sections of the bidirectional lead screw rotate in opposite directions, the two movable seats 614 maintain a symmetrical distribution during movement, ensuring the clamping part 5 holds the nacelle cover firmly and preventing positional displacement due to unilateral force.

[0047] like Figure 3 As shown, in this embodiment, a third driving member 63 is provided at the driving end of the first driving member 62, and a clamping part 5 is provided at the driving end of the third driving member 63. The third driving member 63 is used to drive the clamping part 5 to move in the vertical direction. The third driving member 63 enables the clamping part 5 to be adjusted according to the height of the object to be clamped, further improving the versatility and ease of operation of the device. It should be noted that, as an alternative implementation, the clamping part 5 can also be directly provided at the driving end of the first driving member 62, and the third driving member 63 may not be provided.

[0048] Specifically, the third driving component 63 includes a third motor 632 and a vertical rod 631. The vertical rod 631 is installed at the bottom of the second slider 623 and extends downwards in a vertical direction. A movable cavity is formed inside the vertical rod 631, and a second lead screw 633 is installed in the movable cavity. The second lead screw 633 is rotatably disposed within the movable cavity, and a second lead screw seat 634 is threadedly connected to the second lead screw 633. The driving end of the third motor 632 is connected to the second lead screw 633, driving the second lead screw 633 to rotate. One side of the second lead screw seat 634 is fixedly installed on the side of the mounting frame 72 away from the clamping part 5. The third driving component 63 realizes the vertical position adjustment of the clamping part 5. The rotational output of the second motor 622 is converted into linear motion, causing the second slider 623 to drive the clamping part 5 to rise and fall, thereby adjusting the height of the clamping part 5 to adapt to the installation requirements of different sized cabin covers.

[0049] like Figure 4 , Figure 5 As shown, in this embodiment, at least one negative pressure member 9 is provided on the lower end face of the mounting member 1. The negative pressure member 9 provides auxiliary fixing effect to the wind power generation equipment by generating suction force, which cooperates with the mechanical clamping of the clamping part 5 to enhance the stability during the lifting process and prevent the equipment from shaking in the suspended state. It should be noted that, as an alternative implementation, the negative pressure member 9 may not be provided, and the clamping and fixing of the object to be clamped can also be achieved by using the elastic abutment component 7 and the snap-fit ​​component.

[0050] Specifically, the mounting component 1 has a mounting cavity, within which an electric push rod 11 is installed. Negative pressure components 9 are arranged in a rectangular array on the lower end face of the mounting component 1, and each negative pressure component 9 is connected to an air pump 10. The top of each negative pressure component 9 is fixedly connected to the telescopic end of the electric push rod 11 within the mounting cavity. The bottom of each negative pressure component 9 extends downwards, aligning with the upper end face of the component to be clamped. The negative pressure components 9 are connected to the air pump 10, which serves as the power source and is positioned in the middle of the four negative pressure components 9. When the air pump 10 is activated, it provides negative pressure suction to each negative pressure component 9. Simultaneously, each negative pressure component 9 is height-adjustable via the electric push rod 11, allowing multiple negative pressure components 9 to be raised and lowered according to the bottom contour of the wind power generation equipment. By activating the air pump 10 to generate a negative pressure environment, the negative pressure is used to adsorb and fix the component to be clamped onto the lifting device, thereby providing additional adsorption and fixing force while the clamping part 5 mechanically clamps the nacelle cover. Specifically, as an alternative implementation, the air pump 10 can be installed on the lifting equipment, with an interface provided at the upper end of the connecting block 2. The air pump 10 extends along the mechanical arm of the lifting equipment through a pipeline and is connected and fixed to the structure on the connecting block 2.

[0051] Specifically, mounting component 1 includes: connecting block 2, connector 4, and mounting frame 72. Connecting block 2 is located inside mounting frame 72. Multiple connectors 4 are provided. Mounting frame 72 is fixedly connected to connecting block 2 through connectors 4. Connector 4 is cylindrical.

[0052] like Figure 5 As shown, in this embodiment, a lifting ring 3 is provided on the upper end face of the mounting component 1, and one lifting ring 3 is provided. The lifting ring 3 serves as the connection point of the lifting equipment, through which the mounting component 1 is suspended on the lifting equipment, thereby realizing the vertical lifting and lowering operation of the entire lifting device and the component to be clamped. It should be noted that, as an alternative implementation, the number of lifting rings 3 can be adjusted according to actual needs.

[0053] Specifically, the lifting ring 3 is circular and installed at the top center of the connecting block 2. The lifting ring 3 is fixed to the upper end face of the connecting block 2 by welding. In practice, the lifting ring 3 cooperates with the hook of the lifting equipment. When the maintenance work begins, the hook of the lifting equipment is hooked into the circular lifting ring 3, and then the lifting equipment is used to move the entire lifting device together with the clamped part.

[0054] Working principle: When fixing the disassembled nacelle cover, the first motor 612 drives the bidirectional lead screw 611 to rotate, which drives the moving seat 614 and the first slider 613 to slide along the mounting part 1 to adjust the X-axis spacing. Then, the second motor 622 drives the first lead screw 624 to rotate, which drives the second slider 623 to slide along the horizontal bar 621 to adjust the Y-axis spacing. Finally, the third motor 632 drives the second lead screw 633 to rotate, which drives the mounting frame 72 and the clamping part 5 to rise and fall along the vertical bar 631 to adjust the Z-axis height. Thus, the position of the four clamping parts 5 is adjusted according to the specifications of the nacelle cover.

[0055] When the cabin cover is placed on the clamping part 5, if the cabin cover is hollow inside and located inside the snap fastener 8, the snap fastener 8 remains extended under the action of the second elastic member 13 to limit the cabin cover to the clamping part 5 and prevent slippage. If the cabin cover is large, its bottom end presses against the top of the snap fastener 8, forcing the snap fastener 8 to press down on the second movable plate 12 and compress the second elastic member 13 until the snap fastener 8 is retracted into the second receiving cavity. Under the pressure of the outer wall of the cabin cover, the abutment 75 pushes the first movable plate 73 to move, compressing the first elastic member 74, causing the flexible abutment head 71 to extend and retract, abutting against the outer wall of the cabin cover to achieve a fit.

[0056] After the fixation is completed, the air pump 10 is started to use the negative pressure component 9 to adsorb and assist in fixing the main body of the wind power generation equipment. The hook of the lifting equipment is suspended on the lifting ring 3 at the top of the connecting block 2. The entire lifting device together with the nacelle cover is lifted or lowered by the lifting equipment.

[0057] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A lifting device for the maintenance of wind power generation equipment, characterized in that, include: Installation component (1); Clamping parts (5) are symmetrically arranged on the mounting member (1), and the clamping parts (5) are driven to reciprocate in the length direction or width direction of the mounting member (1); The clamping part (5) is provided with an elastic abutment component (7) and / or a snap-fit ​​component; The elastic abutment assembly (7) has a plurality of abutment members (75) arranged in the vertical direction. The abutment members (75) are retractably arranged on the clamping part (5) in the horizontal direction. The abutment members (75) are used to abut against the outer end face of the part to be clamped. The snap-fit ​​assembly has a snap-fit ​​member (8) that is drivably telescopically arranged in the vertical direction. The snap-fit ​​member (8) is located below the abutment member (75) and is used to snap onto the inner edge of the member to be clamped.

2. The lifting device for wind power equipment maintenance according to claim 1, characterized in that, The clamping part (5) is provided with a first receiving cavity, and a plurality of first elastic elements (74) are provided in the first receiving cavity along the vertical direction. The driving end of each first elastic element (74) is connected to the abutment (75), and the elastic element has a force that drives the abutment (75) to move toward the clamping part.

3. The lifting device for wind power equipment maintenance according to claim 1, characterized in that, The clamping part (5) is provided with a second receiving cavity, and the second receiving cavity is provided with at least one second elastic member (13), the driving end of the second elastic member (13) is connected to the snap-fit ​​member (8).

4. The lifting device for wind power equipment maintenance according to any one of claims 1-3, characterized in that, The clamping part (5) includes: a first connecting plate and a second connecting plate arranged perpendicularly to each other, the second connecting plate being arranged vertically, the first connecting plate being arranged at one end of the length direction of the second connecting plate, and the first connecting plate extending horizontally toward the workpiece to be clamped.

5. The lifting device for wind power equipment maintenance according to any one of claims 1-3, characterized in that, The mounting component (1) is provided with a driving device (6), the driving end of the driving device (6) is fixedly connected to the clamping part (5), and the driving device (6) is used to drive the clamping part (5) to move.

6. The lifting device for wind power equipment maintenance according to claim 5, characterized in that, The mounting component (1) is symmetrically provided with a first driving component (62), and the driving end of the first driving component (62) is provided with the clamping part (5). The first driving component (62) drives the clamping part (5) to reciprocate toward the object to be clamped.

7. The lifting device for wind power equipment maintenance according to claim 6, characterized in that, A second driving member (61) is provided on the mounting member (1) along the length direction of the mounting member (1). The first driving member (62) is fixedly disposed at the driving end of the second driving member (61). The second driving member (61) is used to drive the clamping part (5) to reciprocate along the length direction of the mounting member (1).

8. The lifting device for wind power equipment maintenance according to claim 7, characterized in that, The first driving member (62) has a third driving member (63) at its driving end. The third driving member (63) has the clamping part (5) at its driving end. The third driving member (63) is used to drive the clamping part (5) to move in the vertical direction.

9. The lifting device for maintenance of wind power generation equipment according to any one of claims 1-3 or 6-8, characterized in that, The lower end face of the mounting component (1) is provided with at least one negative pressure component (9).

10. The lifting device for wind power equipment maintenance according to claim 9, characterized in that, The upper end face of the mounting component (1) is provided with a lifting ring (3).

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