Compact type wind power blade mounting lifting appliance

Abstract

The utility model relates to a compact type wind power blade installation lifting appliance which comprises a main beam, cross beams are horizontally arranged at the two ends of the main beam respectively, a lifting belt used for bearing blades is arranged on any cross beam, and the two ends of the lifting belt are detachably arranged at the two ends of the cross beams. And a placing space for placing the blade is formed between the hanging belt and the cross beam. The blade is fixed through direct connection of the lifting belts and the cross beams, the problem that the height of a mechanical structure used by a traditional lifting appliance is too high is solved, the overall height of the lifting appliance is effectively reduced, and the installation difficulty and potential safety hazards of lifting equipment are reduced.

Description

Technical Field

[0001] This application relates to the technical field of hoisting of wind power equipment, and in particular to a compact wind turbine blade installation sling. Background Art

[0002] Wind energy is an important part of today's clean and pollution-free new energy, and has made important contributions in replacing traditional fossil energy for power generation. The main equipment for 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 then hoisted.

[0003] Since the blades of a wind turbine are relatively large in size, generally a sling is used to hoist the blades. When the conventional sling hoists the blades, a mechanical structure is usually provided at the bottom of the sling to support or install the blades, which increases the height of the sling. This requires a hoisting device with a higher height to use the sling. The increase in the height of the hoisting device will not only increase the installation difficulty of the hoisting device, but also increase potential safety hazards. When the overall height of the sling used on the hoisting device is relatively high, it is necessary to increase the height of the hoisting device to carry out normal hoisting and installation. Therefore, it is necessary to reduce the height of the sling. Summary of the Utility Model

[0004] In order to solve the problem of the excessive height of the sling in the background art, this application provides a compact wind turbine blade installation sling.

[0005] A compact wind turbine blade installation sling provided by this application adopts the following technical solutions:

[0006] A compact wind turbine blade installation sling includes a main beam. Cross beams are horizontally arranged at both ends of the main beam respectively. A sling for carrying the blade is detachably arranged on any one of the cross beams. A placement space for placing the blade is formed between the sling and the cross beam.

[0007] By adopting the above technical solutions, the sling and the cross beam are directly connected to fix the blade, overcoming the problem of the excessive height of the mechanical structure in the conventional sling, effectively reducing the overall height of the sling, and reducing the installation difficulty and potential safety hazards of the hoisting device.

[0008] Preferably, the main beam includes at least two longitudinal beams. The length directions of any one of the longitudinal beams are arranged along the same straight line. The adjacent longitudinal beams are detachably connected to form the main beam. The cross beam is fixedly connected to the end of the main beam.

[0009] By adopting the above technical solution, the longitudinally arranged beams that can be detachably connected facilitate adjusting the number of longitudinally arranged beams according to actual requirements to change the length of the main beam, improving the applicability and flexibility of the lifting tool.

[0010] Preferably, connection frames are arranged at both ends of the cross beam, lifting rings are arranged at both ends of the sling, a connection space for connecting the lifting rings is arranged on the connection frame, and an automatic bolt is further arranged on the connection frame. When the lifting ring is located in the connection space, the automatic bolt penetrates through the lifting ring.

[0011] By adopting the above technical solution, the use of lifting makes the connection between the sling and the cross beam more flexible, facilitating the replacement and maintenance of the sling.

[0012] Preferably, a plurality of positioning holes are arranged at both ends of the cross beam, and the connection frame is detachably connected to the cross beam through the positioning holes.

[0013] By adopting the above technical solution, the lifting ring can be fixed in the connection space by using the automatic bolt, and the lifting ring can also be automatically released, ensuring the stable connection between the lifting ring and the connection mechanism and facilitating operation.

[0014] Preferably, a sliding seat is slidably connected in the placing space at the lower part of the cross beam, one end of the sliding seat is rotatably connected with a pressing rod, a pressing plate for fixing the blade is arranged at the end of the pressing rod far away from the sliding seat, and a 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 connection frame can be selectively installed in different positioning holes, thereby adjusting the position of the connection structure to adapt to blades of different sizes.

[0016] Preferably, support legs are arranged at both ends of the cross beam.

[0017] By adopting the above technical solution, the arrangement of the support legs can provide stable support force for the main frame, facilitating placement when the lifting tool is not in use.

[0018] Preferably, a reinforcing plate for enhancing the structure of the longitudinally arranged beam is fixedly arranged along the length direction of the lower end of the longitudinally arranged beam.

[0019] By adopting the above technical solution, the use of the reinforcing plate enhances the strength of the longitudinally arranged beam, improving the safety of the lifting tool.

[0020] Preferably, reinforcing ribs are further arranged on the cross beam.

[0021] By adopting the above technical solution, the use of the reinforcing ribs enhances the strength of the longitudinally arranged beam, improving the safety of the lifting tool.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Since the utility model adopts a combined structure of a main beam and a cross beam, and sling straps are arranged on the cross beam to carry the blade, redundant mechanical structures in the traditional lifting tool are eliminated, thereby effectively reducing the overall height of the lifting tool and reducing the installation difficulty and safety hazards of the lifting equipment;

[0024] 2. In the utility model, a detachable connection method is adopted between the various parts of the lifting tool, so that the lifting tool has a good modular design, which is convenient for transportation, storage and maintenance, and improves the flexibility and economic benefits of the lifting tool;

[0025] 3. By arranging structures such as a sliding seat, a pressing rod and a driving mechanism, stable fixation of the blade can be achieved, preventing the blade from shaking or falling off during the lifting process, and further improving the safety and stability of the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is a side schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of the structure of the cross beam of an embodiment of the present application.

[0029] Reference numerals: 1, main beam; 101, longitudinal beam; 1011, positioning flange; 102, reinforcing plate; 2, cross beam; 201, positioning hole; 202, support leg; 203, reinforcing rib; 3, sling strap; 301, lifting ring; 4, placement space; 5, connecting frame body; 501, first connecting plate; 502, second connecting plate; 503, automatic bolt; 6, connecting space; 7, pressing mechanism; 701, sliding track; 702, sliding seat; 703, pressing rod; 704, driving mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will Figure 1 - attach Figure 3 make a further detailed description of the present application.

[0031] An embodiment of the present application discloses a compact wind turbine blade installation lifting tool.

[0032] Refer to Figure 1, A compact wind turbine blade installation sling, comprising a main beam 1. The main beam 1 includes at least two longitudinal beams 101. The length directions of any longitudinal beam 101 are arranged along the same straight line. Adjacent longitudinal beams 101 are detachably connected to form the main beam 1. Positioning flanges 1011 are provided at the ends of adjacent longitudinal beams 101. Adjacent longitudinal beams 101 are detachably connected to form the main beam 1 by passing bolts through the positioning flanges 1011. At the lower end of any longitudinal beam 101, a reinforcing plate 102 for enhancing the structure of the longitudinal beam 1 is fixedly provided along the length direction of the longitudinal beam 101.

[0033] Refer to Figure 1 and Figure 2 , Cross beams 2 are horizontally provided at the end portions of the longitudinal beams 101 at both ends of the main beam 1 respectively. A sling 3 for carrying the blade is provided on any cross beam 2. Lifting rings 301 are provided at both ends of the sling 3. Connecting frames 5 are provided at both ends of the cross beam 2. The sling 3 is detachably connected to the connecting frame 5 through the lifting rings 301. A placement space 4 for placing the blade is formed between the sling 3 and the cross beam 2.

[0034] Refer to Figure 2 and Figure 3 , A plurality of positioning holes 201 are provided at both ends of the cross beam 2. The connecting frame 5 includes a first connecting plate 501 and a second connecting plate 502 vertically provided at the end of the cross beam 2. The first connecting plate 501 and the second connecting plate 502 are arranged oppositely. The positioning holes 201 are located between the first connecting plate 501 and the second connecting plate 502. Bolts are used to pass through the first connecting plate 501, the positioning holes 201 and the second connecting plate 502 in sequence. The plurality of positioning holes 201 provided can change the position of the connecting frame 5 to adapt to blades of different sizes.

[0035] Refer to Figure 2 and Figure 3 , A connecting space 6 for connecting the lifting rings 301 is formed between the first connecting plate 501 and the second connecting plate 502. An automatic bolt 503 is further provided on the first connecting plate 501. When the lifting ring 301 is located in the connecting space 6, the automatic bolt 503 passes through the first connecting plate 501, the lifting ring 301 and the second connecting plate 502 in sequence.

[0036] Refer to Figure 2 and Figure 3, a pressing mechanism 7 for pressing the blade is further provided inside the placement space 4 at the lower part of the cross beam 2. The pressing mechanism 7 includes a sliding track 701 provided at the bottom of the cross beam 2. A sliding seat 702 is sleeved on the sliding track 701, and the sliding seat 702 forms a sliding fit with the sliding track 701. One end of the sliding seat 702 is rotatably connected to a pressing rod 703. A pressing plate for fixing the blade is provided at the end of the pressing rod 703 away from the sliding seat 702. The pressing plate is connected to the pressing rod 703 through a universal bearing. A driving mechanism 704 for driving the pressing rod 703 to rotate is provided between the sliding seat 702 and the pressing rod 703. In the embodiment of the present application, the driving mechanism 704 is set as a telescopic oil cylinder. The piston rod of the telescopic oil cylinder is fixedly connected to the end of the pressing rod 703 away from the sliding seat 702. After the sling 3 is fixed, the telescopic oil cylinder is started to make the pressing plate move downward to abut against the blade, further fixing the blade and ensuring the stability of the hoisting.

[0037] Referring to Figure 1 and Figure 2 , in order to facilitate placement when the lifting tool is not in use, support legs 202 are vertically provided at both ends of any cross beam 2. And in order to strengthen the structure of the cross beam 2, reinforcing ribs 203 are further provided on the cross beam 2.

[0038] The implementation principle of the embodiment of the present application is as follows: When in use, the blade is placed in the placement space 4 and lifted by the sling 3. Since both ends of the sling 3 are detachably connected to the cross beam 2, the length and position of the sling 3 can be adjusted according to actual needs to adapt to blades of different sizes and weights. At the same time, the lifting tool has a compact structure and a relatively low overall height, so the height requirement of the hoisting equipment can be effectively reduced, and the safety and efficiency of the hoisting process can be improved.

[0039] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A compact wind turbine blade installation hanger, characterized in that: The invention comprises a main beam (1), wherein two ends of the main beam (1) are respectively provided with horizontal cross beams (2), and a sling (3) for carrying blades is provided on any of the cross beams (2), and the two ends of the sling (3) are detachably provided on the two ends of the cross beam (2), and a placement space (4) for placing blades is formed between the sling (3) and the cross beam (2).

2. A compact wind turbine blade installation hanger according to claim 1, characterized in that: The main beam (1) comprises at least two longitudinal beams (101), the length direction of each longitudinal beam (101) is arranged along the same straight line, adjacent longitudinal beams (101) are detachably connected to form the main beam (1), and the cross beam (2) is fixedly connected to the end of the longitudinal beam (101).

3. A compact wind turbine blade installation hanger according to claim 2, characterized in that: Both ends of the crossbeam (2) are provided with a connecting frame (5), and both ends of the sling (3) are provided with a lifting ring (301). The connecting frame (5) is provided with a connecting space (6) for connecting the lifting ring (301). The connecting frame (5) is also provided with an automatic latch (503). When the lifting ring (301) is located in the connecting space (6), the automatic latch (503) passes through the lifting ring (301).

4. A compact wind turbine blade installation hanger according to claim 3, characterized in that: Both ends of the crossbeam (2) are provided with a plurality of positioning holes (201), and the connecting frame (5) is detachably connected to the crossbeam (2) via the positioning holes (201).

5. The compact wind turbine blade installation hanger according to claim 1, characterized in that: The lower part of the cross beam (2) is located in the placement space (4) and is slidably connected to a sliding seat (702); one end of the sliding seat (702) is rotatably connected to a clamping rod (703); an end of the clamping rod (703) away from the sliding seat (702) is provided with a clamping plate for fixing the blades; a driving mechanism (704) for driving the clamping rod (703) to rotate is provided between the sliding seat (702) and the clamping rod (703).

6. The compact wind turbine blade installation hanger according to claim 1, characterized in that: Support legs (202) are provided at both ends of the crossbeam (2).

7. The compact wind turbine blade installation hanger according to claim 2, characterized in that: A reinforcing plate (102) for reinforcing the structure of the longitudinal beam (101) is also fixedly arranged at the lower end of the longitudinal beam (101) along the length direction of the longitudinal beam (101).

8. The compact wind turbine blade installation hanger according to claim 1, characterized in that: The crossbeam (2) is also provided with reinforcing ribs (203).

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