Adjustable wind power blade mounting lifting appliance

Abstract

The utility model relates to an adjustable wind power blade installation lifting appliance, and relates to the technical field of wind power equipment lifting, the adjustable wind power blade installation lifting appliance comprises a main frame, an end beam is horizontally arranged on the main frame, the end beam is detachably connected with the main frame through a detachable site, the flexible adjusting capacity is provided for the lifting appliance, and a mechanical arm is arranged on the lower portion of the end beam; a lifting belt and a positioning structure specially used for positioning and conveying a lifting ring of the lifting belt are arranged on the mechanical arm, and a connecting mechanism connected with the lifting ring is further arranged on the lower portion of the end beam in a lifting mode. One end of the sling lifting ring can ascend and descend to tighten the sling to adapt to blades of different sizes, the end beams are detachably connected to the main frame, the distances between the adjacent end beams are different by selecting different detachable sites, and the sling lifting ring can adapt to blades of different lengths.

Description

Technical Field

[0001] This application relates to the technical field of hoisting of wind power equipment, and in particular to an adjustable hoisting tool for installing wind turbine blades. Background Art

[0002] Wind energy is an important part of today's clean and pollution-free new energy, and has made important contributions to replacing traditional fossil energy for power generation. The main equipment of wind power generation is a wind turbine, which can effectively convert wind energy into electrical energy; as an important part of a wind turbine generator set, the impeller is a crucial factor affecting the power generation of the wind turbine generator set. During the installation process of the wind turbine generator set, usually the tower is first fixedly installed, and after the nacelle is fixed at the top of the tower, the impeller of the wind turbine generator set is hoisted.

[0003] Since the blades of wind turbines are relatively large in size, generally a hoisting tool is used to hoist the blades. However, due to the different sizes and lengths of different blades, traditional hoisting designs different hoisting tools corresponding to different types of blades. When hoisting blades of different sizes each time, a special hoisting tool for the corresponding size of the blade needs to be selected for use. This results in the need to customize and install separately each time different blades are installed, which is rather troublesome. Custom production takes time and is likely to extend the construction period, and it is not convenient to use. Utility Model Content

[0004] In order to solve the problem of the hoisting tool in the background art, this application provides an adjustable hoisting tool for installing wind turbine blades.

[0005] An adjustable hoisting tool for installing wind turbine blades provided by this application adopts the following technical solutions:

[0006] An adjustable hoisting tool for installing wind turbine blades includes a main frame. At least two end beams are horizontally arranged on the main frame. A plurality of detachable positions are arranged on the main frame. The end beams form a detachable connection with the main frame through the detachable positions. A robotic arm is arranged at the lower part of any one of the end beams. One end of the robotic arm is rotatably connected to one end of the end beam. A first driving mechanism for driving the robotic arm to rotate is further arranged at the rotational connection position between the end beam and the robotic arm. A fixing structure is further arranged at the end of the robotic arm far from the first driving mechanism. A placement space for placing the blade is formed between the robotic arm and the end beam. A sling for carrying the blade is arranged in the placement space on the robotic arm. One end of the sling is fixedly connected to one end of the end beam close to the first driving mechanism. A lifting ring is arranged at the other end of the sling. A positioning structure for positioning the lifting ring is arranged at the end of the robotic arm far from the first driving mechanism. A connecting mechanism for connecting the lifting ring is arranged at the end of the end beam far from the first driving mechanism in a lifting manner.

[0007] By adopting the above technical solution, the sling is used to fix the blade, and at the same time, the robotic arm is used to connect the lifting ring at one end of the sling to the connecting mechanism arranged for lifting and lowering, so that one end of the sling lifting ring can be lifted and lowered to tighten the sling to adapt to blades of different sizes. The end beam is detachably connected to the main frame, and by selecting different detachable positions, the distance between adjacent end beams is different, and it can adapt to blades of different lengths.

[0008] Preferably, the main frame includes at least two long longitudinal beams arranged in parallel, and a plurality of short cross beams are arranged between adjacent long longitudinal beams. A plurality of the detachable positions are uniformly arranged at both ends of the long longitudinal beam along the length direction of the long longitudinal beam, and the end beam is detachably connected to the long longitudinal beam.

[0009] By adopting the above technical solution, the two long longitudinal beams and the multiple short cross beams jointly form a main frame with stable structural strength.

[0010] Preferably, a first rotating beam and a second rotating beam are respectively rotatably connected to both ends of the end beam. One end of the robotic arm is rotatably connected to the first rotating beam, and the end of the sling away from the lifting ring is fixedly connected to the first rotating beam. The connecting mechanism is arranged for lifting and lowering on the second rotating beam. The plane where the long longitudinal beam and the short cross beam are located is set as the first plane, and the rotation axes of the first rotating beam and the second rotating beam are both perpendicular to the first plane.

[0011] By adopting the above technical solution, the rotatably arranged first rotating beam and second rotating beam can rotate the first rotating beam and the second rotating beam to be parallel to the long longitudinal beam when the lifting device is not in use, reducing the floor area of the lifting device.

[0012] Preferably, the connecting mechanism includes a first connecting plate and a second connecting plate arranged vertically. The first connecting plate and the second connecting plate are arranged opposite to each other, and a connecting space for connecting the lifting ring is formed between the first connecting plate and the second connecting plate. An automatic bolt is arranged on the first connecting plate, and the automatic bolt sequentially penetrates the first connecting plate, the lifting ring and the second connecting plate.

[0013] By adopting the above technical solution, the automatic bolt can fix the lifting ring between the first connecting plate and the second connecting plate, and can also automatically release the lifting ring, which can ensure the stable connection between the lifting ring and the connecting mechanism and is convenient for operation.

[0014] Preferably, a sliding seat is slidably connected in the placement space at the lower part of the end beam. One end of the sliding seat is rotatably connected to a pressing rod, and a pressing plate for fixing the blade is arranged at the end of the pressing rod away from the sliding seat. A second driving mechanism for driving the pressing rod to rotate is arranged between the sliding seat and the pressing rod.

[0015] By adopting the above technical solution, the arrangement of the tightening plate and the pressing rod can stably fix the wind power blade during the hoisting process, prevent the blade from shaking or falling off during the hoisting process, and improve the safety of hoisting.

[0016] Preferably, the detachable site includes a convex stop provided at the end of the long longitudinal beam, and a concave stop matching the convex stop is provided on the end beam.

[0017] By adopting the above technical solution, the matching arrangement of the convex stop and the concave stop makes the connection between the end beam and the long longitudinal beam more stable and reliable, and is convenient for disassembly and installation. At the same time, the end beam can be installed at the convex stops at different positions, so that the distance between the end beams changes to adapt to wind power blades of different lengths.

[0018] Preferably, at least two support legs for supporting the main frame are rotatably connected to the side of the long longitudinal beam away from the end beam.

[0019] By adopting the above technical solution, the arrangement of the support legs can provide a stable supporting force for the main frame and is convenient for placing when the spreader is not in use.

[0020] Preferably, a connecting ear seat is provided at the lower end of the support leg, and a fixed ear seat matching the connecting ear seat is provided on the side of the long longitudinal beam away from the end beam.

[0021] By adopting the above technical solution, the arrangement of the connecting ear seat and the fixed ear seat enables the support leg to be rotated to the side to fit the long longitudinal beam during the use of the spreader, reducing the influence on the use of the spreader.

[0022] Preferably, a plurality of relatively coaxially arranged third positioning holes are provided on the second rotating beam, and the connecting mechanism is detachably connected to the third positioning holes on the second rotating beam.

[0023] By adopting the above technical solution, the connecting mechanism can be selectively installed in different third positioning holes, thereby adjusting the position of the connecting structure to adapt to wind power blades of different sizes.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The utility model uses a robotic arm to stabilize and control the position of the lifting ring at the end of the sling, and uses a connecting mechanism arranged for lifting to connect the lifting ring and lift the sling, so that the lifting ring can be connected to the connecting mechanism in the air and can lift and tighten the sling.

[0026] 2. Since the utility model adopts detachable sites and an adjustable robotic arm to control the sling, the spreader can adapt to wind power blades of different sizes and weights, improving the flexibility and adaptability of hoisting;

[0027] 3. Through the settings of the pressing plate and the pressing rod, the wind power blade can be stably fixed during the hoisting process, preventing the blade from shaking or falling off during hoisting, and improving the safety of hoisting;

[0028] 4. The cooperative setting of the convex stop and the concave stop, as well as the settings of the connecting ear seat and the fixed ear seat, enhance the connection stability between the various components of the spreader and improve the reliability of hoisting. Brief Description of the Drawings

[0029] Figure 1 is the schematic diagram of the overall structure in the embodiment of the present application;

[0030] Figure 2 is the diagram of the rotation process of the first rotating beam in the embodiment of the present application;

[0031] Figure 3 is the schematic diagram of the robotic arm and the pressing mechanism in the embodiment of the present application;

[0032] Figure 4 is the schematic diagram of the movement of the robotic arm and the pressing mechanism in the embodiment of the present application;

[0033] Figure 5 is the schematic diagram of the connecting mechanism in the embodiment of the present application;

[0034] Figure 6 is the adaptation diagram of the end beam structure in the embodiment of the present application;

[0035] Figure 7 is the schematic diagram of the structure of the support leg in the embodiment of the present application.

[0036] Reference Numerals: 1, main frame; 101, long longitudinal beam; 1011, third ear seat; 1012, fourth ear seat; 1013, fixed ear seat; 102, short cross beam; 2, end beam; 201, first positioning hole; 202, second positioning hole; 203, concave stop; 204, positioning flange; 3, detachable site; 301, convex stop; 4, first rotating beam; 5, second rotating beam; 501, third positioning hole; 6, positioning ear plate; 7, robotic arm; 701, limiting structure; 7011, limiting groove; 8, placement space; 9, first driving mechanism; 10, sling; 1001, lifting ring; 11, electric hoist; 12, connecting mechanism; 1201, first connecting plate; 1202, second connecting plate; 1203, connecting space; 1204, automatic bolt; 13, pressing mechanism; 1301, sliding seat; 1302, sliding track; 1303, pressing rod; 1304, pressing plate; 1305, second driving mechanism; 14, support leg; 1401, first ear seat; 1402, second ear seat; 1403, connecting ear seat. Detailed Description of the Embodiment

[0037] The following is combined with the attachedFigure 1 - Attachment Figure 7 This application will be further described in detail below.

[0038] An embodiment of this application discloses an adjustable lifting tool for wind turbine blades.

[0039] Referring to Figure 1 , an adjustable lifting tool for wind turbine blades includes a main frame 1. The main frame 1 includes at least two long longitudinal beams 101 arranged in parallel. In the embodiment of this application, the long longitudinal beams 101 are set to two. A plurality of short cross beams 102 are arranged at intervals between adjacent long longitudinal beams 101. In the embodiment of this application, the short cross beams 102 are set to four. At least two end beams 2 are arranged horizontally and perpendicularly to the long longitudinal beams 101 on the long longitudinal beams 101. In the embodiment of this application, the end beams 2 are set to two. A plurality of detachable sites 3 are evenly arranged at both ends of any one long longitudinal beam 101. Both ends of any one end beam 2 are detachably connected to adjacent long longitudinal beams 101 through the detachable sites 3 respectively. The end beam 2 is detachably connected to the main frame 1. By selecting different detachable sites 3, the distance between adjacent end beams 2 can be made different, so as to adapt to blades of different lengths.

[0040] Referring to Figure 1 and Figure 2 , both ends of any one end beam 2 are respectively rotatably connected with a first rotating beam 4 and a second rotating beam 5 through a pin shaft. The plane where the long longitudinal beam 101 and the short cross beam 102 are located is set as the first plane. The rotation axes of the first rotating beam 4 and the second rotating beam 5 are perpendicular to the first plane. Positioning ear plates 6 are arranged at the rotation joints of the first rotating beam 4 and the second rotating beam 5. Both ends of the end beam 2 are provided with a first positioning hole 201 and a second positioning hole 202 that cooperate with the positioning ear plates 6. When the first rotating beam 4 and the second rotating beam 5 rotate to an angle of 180° with the end beam 2, at this time, both the first rotating beam 4 and the second rotating beam 5 are perpendicular to the long longitudinal beam 101, and the positioning ear plate 6 cooperates with the first positioning hole 201 and fixes the first rotating beam 4 and the second rotating beam 5 by inserting a positioning pin; when the first rotating beam 4 and the second rotating beam 5 rotate to an angle of 90° with the end beam 2, at this time, both the first rotating beam 4 and the second rotating beam 5 are parallel to the long longitudinal beam 101, and the positioning ear plate 6 cooperates with the second positioning hole 202 and fixes the first rotating beam 4 and the second rotating beam 5 by inserting a positioning pin; the rotatably connected first rotating beam 4 and second rotating beam 5 can be rotated and retracted when not in use, so as to reduce the floor area of the lifting tool and facilitate placement.

[0041] Referring to Figure 1 and Figure 3, a manipulator 7 is provided at the lower part of any end beam 2. The manipulator 7 is formed by welding steel pipe structures together. A placement space 8 for placing blades is formed between the manipulator 7 and the end beam 2. One end of the manipulator 7 is rotatably connected to the first rotating beam 4 through a pin shaft. A first driving mechanism 9 for driving the manipulator 7 to rotate is also provided at the rotational connection between the first rotating beam 4 and the manipulator 7. The first driving mechanism 9 includes a first telescopic oil cylinder. The cylinder body of the first telescopic oil cylinder is installed on the first rotating beam 4, and the telescopic rod of the first telescopic oil cylinder abuts against the side of the manipulator 7 away from the placement space 8. A sling 10 for carrying the blade is provided in the placement space 8 on the manipulator 7. One end of the sling 10 is fixedly connected to the first rotating beam 4, and a lifting ring 1001 is provided at the other end of the sling 10. A limiting structure 701 is provided at the end of the manipulator 7 away from the first driving mechanism 9. The limiting structure 701 includes a limiting groove 7011, and the lifting ring 1001 is located in the limiting groove 7011.

[0042] Refer to Figure 4 and Figure 5 , a plurality of relatively coaxially arranged third positioning holes 501 are provided at the lower end of the second rotating beam 5. An electric hoist 11 is also provided on the second rotating beam 5. The electric hoist 11 is detachably connected to the lower end of the second rotating beam 5 by bolts passing through the relatively arranged third positioning holes 501. A connecting mechanism 12 is provided below the electric hoist 11 and is lifted and lowered by a steel cable. The connecting mechanism 12 includes a first connecting plate 1201 and a second connecting plate 1202 that are vertically arranged and fixedly connected to the steel cable of the electric hoist 11. The first connecting plate 1201 and the second connecting plate 1202 are arranged opposite to each other. A connecting space 1203 for connecting the lifting ring 1001 is formed between the first connecting plate 1201 and the second connecting plate 1202. An automatic bolt 1204 is provided on the first connecting plate 1201. During hoisting, the manipulator 7 is driven to rotate by the first driving mechanism 9, so that the lifting ring 1001 rises to the corresponding position, the connecting mechanism 12 is lowered to fix the lifting ring 1001, and the automatic bolt 1204 sequentially passes through the first connecting plate 1201, the lifting ring 1001 and the second connecting plate 1202. Then the lifting ring 1001 is lifted, so that the sling 10 is tightened to fix the blade. The detachable setting of the electric hoist 11 can adjust the fixing position of the electric hoist 11 according to the blade. The settings of the sling 10 and the lifting ring 1001 enable the lifting tool to adapt to the hoisting requirements of different sizes of wind power blades, thereby improving the hoisting efficiency.

[0043] Refer to Figure 1 and Figure 3, a pressing mechanism 13 is further arranged below the end beam 2. The pressing mechanism 13 includes a sliding seat 1301 arranged in the placement space 8. A sliding track 1302 is arranged below the end beam 2. The sliding seat 1301 is sleeved on the sliding track 1302. A bolt is threaded through the sliding seat 1301 and forms a pressing fit with the sliding track 1302 to fix the sliding seat 1301. One end of the sliding seat 1301 is rotatably connected to a pressing rod 1303. The end of the pressing rod 1303 away from the sliding seat 1301 is connected with a pressing plate 1304 for pressing against the blade through a universal bearing. A second driving mechanism 1305 for driving the pressing rod 1303 to rotate is arranged between the sliding seat 1301 and the pressing rod 1303. In the embodiment of the present application, the second driving mechanism 1305 is arranged as a second telescopic oil cylinder. The piston rod of the second telescopic oil cylinder is fixedly connected to the end of the pressing rod 1303 away from the sliding seat 1301. When the sling 10 starts to contact the blade, the second telescopic oil cylinder is started to make the pressing plate 1304 move downward to abut against the blade, further fixing the blade and ensuring the stability of the hoisting.

[0044] Refer to Figure 1 and Figure 6 , the detachable site 3 includes a convex stop 301 arranged at the end of the long longitudinal beam 101. A concave stop 203 matching with the convex stop 301 is arranged on the end beam 2. Positioning flanges 204 are further arranged on both sides of the concave stop 203 of the end beam 2. Bolts are threaded through the positioning flanges 204 and are threaded and connected to the long longitudinal beam 101. By selecting different convex stops 301 to cooperate with, the end beam 2 can adjust the distance between adjacent end beams 2, so that the spreader can adapt to blades of different lengths.

[0045] Refer to Figure 1 and Figure 7, on one side of any long longitudinal beam 101 away from the end beam 2, at least two support legs 14 for supporting the main frame 1 are rotatably connected. At one end of the support leg 14, a first ear seat 1401 and a second ear seat 1402 are oppositely arranged. On the long longitudinal beam 101, a third ear seat 1011 and a fourth ear seat 1012 are respectively arranged and are matched with the first ear seat 1401 and the second ear seat 1402. The first ear seat 1401 is rotatably connected to the third ear seat 1011 through a pin shaft, and the second ear seat 1402 and the fourth ear seat 1012 are fixedly connected through a positioning pin. At one end of the support leg 14 away from the first ear seat 1401, a connecting ear seat 1403 is arranged. On one side of the long longitudinal beam 101 away from the end beam 2, a fixed ear seat 1013 matched with the connecting ear seat 1403 is arranged. When it is necessary to rotate and contract the support leg 14, the positioning pin between the second ear seat 1402 and the fourth ear seat 1012 is removed, and the support leg 14 is rotated to the horizontal position. At this time, the connecting ear seat 1403 is matched with the fixed ear seat 1013, and a positioning pin is used to penetrate the connecting ear seat 1403 and the fixed ear seat 1013 to fix the support leg 14. The support leg 14 is convenient to be placed on the ground when the manipulator 7 is removed without using a lifting tool. The rotatable setting of the support leg 14 is convenient to retract the support leg 14 during use to reduce interference with the hoisting.

[0046] Referring to Figure 1 , a generator and an electric control room are also fixedly arranged on the main frame 1. The electric control room is used to overall control the operation of various power mechanisms to realize the intelligent coordinated control of the wind power blade hoisting process.

[0047] The implementation principle of the embodiment of this application is as follows: The adjustable wind power blade installation lifting tool adopts a detachable end beam 2 to cooperate with the manipulator 7 to control the sling 10, and a connecting mechanism 12 arranged in a lifting manner. During hoisting, first, an external device is used to send the blade into the placement space 8. Then, when the first driving mechanism 9 is started to send the lifting ring 1001 to the corresponding position, the connecting mechanism 12 is lowered by the electric hoist 11 to fix the lifting ring 1001. Then, the lifting ring 1001 is lifted to make the sling 10 start to tighten. At the same time, the pressing mechanism 13 is started to press the blade, realizing the fast and stable hoisting of blades of different sizes, improving the hoisting efficiency, reducing the hoisting cost, and having significant beneficial effects.

[0048] The above are all the preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An adjustable lifting tool for wind turbine blades, characterized in that: It includes a main frame (1), on which at least two end beams (2) are horizontally arranged. A plurality of detachable sites (3) are arranged on the main frame (1). The end beams (2) form a detachable connection with the main frame (1) through the detachable sites (3). A robotic arm (7) is arranged at the lower part of any one of the end beams (2). One end of the robotic arm (7) is rotatably connected to one end of the end beam (2). A first driving mechanism (9) for driving the rotation of the robotic arm (7) is further arranged at the rotational connection between the end beam (2) and the robotic arm (7). A placement space (8) for placing blades is formed between the robotic arm (7) and the end beam (2). A sling (10) for carrying the blades is arranged in the placement space (8) on the robotic arm (7). One end of the sling (10) is fixedly connected to one end of the end beam (2) close to the first driving mechanism (9). A lifting ring (1001) is arranged at the other end of the sling (10). A limiting structure (701) for limiting the lifting ring (1001) is further arranged at the end of the robotic arm (7) away from the first driving mechanism (9). A connection mechanism (12) for connecting the lifting ring (1001) is arranged in a lifting manner at the end of the end beam (2) away from the first driving mechanism (9).

2. The adjustable wind turbine blade installation sling according to claim 1, characterized in that: The main frame (1) includes at least two long longitudinal beams (101) arranged in parallel. A plurality of short cross beams (102) are arranged between adjacent long longitudinal beams (101). The plurality of detachable sites (3) are uniformly arranged at both ends of the long longitudinal beam (101) along the length direction of the long longitudinal beam (101). The end beam (2) is detachably connected to the long longitudinal beam (101).

3. The adjustable wind turbine blade installation sling according to claim 2, wherein: A first rotating beam (4) and a second rotating beam (5) are respectively rotatably connected to both ends of the end beam (2). One end of the robotic arm (7) is rotatably connected to the first rotating beam (4). The end of the sling (10) away from the lifting ring (1001) is fixedly connected to the first rotating beam (4). The connection mechanism (12) is arranged in a lifting manner on the second rotating beam (5). The plane where the long longitudinal beam (101) and the short cross beam (102) are located is set as the first plane. The rotation axes of the first rotating beam (4) and the second rotating beam (5) are both perpendicular to the first plane.

4. The adjustable wind turbine blade installation sling according to claim 3, characterized in that: The connection mechanism (12) includes a vertically arranged first connecting plate (1201) and a second connecting plate (1202). The first connecting plate (1201) and the second connecting plate (1202) are arranged oppositely. A connection space (1203) for connecting the lifting ring (1001) is formed between the first connecting plate (1201) and the second connecting plate (1202). An automatic bolt (1204) is arranged on the first connecting plate (1201). The automatic bolt (1204) sequentially penetrates through the first connecting plate (1201), the lifting ring (1001), and the second connecting plate (1202).

5. The adjustable wind turbine blade installation sling according to claim 1, characterized in that: A sliding seat (1301) is slidably connected inside the placement space (8) at the lower part of the end beam (2). One end of the sliding seat (1301) is rotatably connected to a pressing rod (1303). A pressing plate (1304) for fixing the blade is provided at the end of the pressing rod (1303) away from the sliding seat (1301). A second driving mechanism (1305) for driving the pressing rod (1303) to rotate is provided between the sliding seat (1301) and the pressing rod (1303).

6. The adjustable wind turbine blade installation sling according to claim 2, wherein: The detachable site (3) includes a convex stop (301) provided at the end of the long longitudinal beam (101). A concave stop (203) matching the convex stop (301) is provided on the end beam (2).

7. The adjustable wind turbine blade installation sling according to claim 2, characterized in that: At least two support legs (14) for supporting the main frame (1) are rotatably connected to the side of the long longitudinal beam (101) away from the end beam (2).

8. The adjustable wind turbine blade installation sling according to claim 7, wherein: A connecting ear seat (1403) is provided at the lower end of the support leg (14). A fixed ear seat (1013) matching the connecting ear seat (1403) is provided on the side of the long longitudinal beam (101) away from the end beam (2). The connecting ear seat (1403) and the fixed ear seat (1013) form a pin connection.

9. The adjustable wind turbine blade installation sling according to claim 4, wherein: A plurality of third positioning holes (501) arranged coaxially relative to each other are provided on the second rotating beam (5). The connecting mechanism (12) is detachably connected to the second rotating beam (5) through the third positioning holes (501).

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