Large-scale impeller single-blade installation lifting appliance for wind power plant

Abstract

The utility model discloses a wind power plant large-scale impeller single blade installation lifting appliance which comprises a lifting appliance base, main beams are arranged on the two sides of the lifting appliance base, the main beams are connected through a cross rod, lifting belt buckles used for being connected with lifting belts of a crane are arranged at the two ends of the two main beams, and extension arms are arranged at the two ends of the two main beams respectively. An electric hoist group is arranged at the end part of the extension arm; and a shackle connected with a single-blade sling is arranged at the bottom of the electric hoist group. After the crane is buckled into the sling buckles at the two ends of the two main beams through the crane slings, the two ends of the two main beams prop open the crane slings, at the moment, enough space is formed between the crane slings, and the crane can pull the sling base more stably; besides, the extension arms are arranged at the two ends of the two main beams respectively, the electric hoist sets are arranged at the ends of the four extension arms, and the impeller single blade is hoisted by the electric hoist sets through shackles, so that the stability of hoisting the impeller single blade by the crane is further improved, the hoisting time is shortened, and the construction progress is accelerated.

Description

Technical Field

[0001] The utility model relates to installation equipment for single blades of large-scale impellers in wind farms, in particular to a installation hanger for single blades of large-scale impellers in wind farms. Background Art

[0002] Wind turbines generate electricity by capturing the energy of wind in the air through impellers. Blades are needed to capture wind energy, just like the electric fans we use in daily life. Electric fans output wind energy, while wind turbines capture energy in the wind. Wind turbines are large equipment. Usually, after the design is completed and the successful verification is finalized, the design documents are sent to various factories around the world or domestically for production. After production is completed, the various parts and electrical components are transported to the wind farm for assembly. Figure 1 As shown, currently, the installation of single blades of impellers in wind farms is mainly carried out by directly lifting the single blades of impellers through the lifting belt of the crane hook. However, since the lifting belt between the lifting hook of the crane and the single blade of impeller is long, the lifting belts cannot be stretched to a sufficient distance, so that the force distance between the lifting belts on the single blade of impeller is small. Therefore, shaking is easy to occur during the lifting, and the lifting time is often slow, thus affecting the progress of the construction. Utility Model Content

[0003] The utility model aims to provide a large-scale wind farm impeller single-blade installation hoist with more stable hoisting of impeller single blades, so as to speed up the hoisting time and improve the progress of construction.

[0004] The utility model discloses a large wind farm impeller single-blade installation hanger, comprising a hanger base, main beams are arranged on both sides of the hanger base, the main beams are connected by cross bars, sling buckles for connecting crane slings are arranged at both ends of the two main beams, and extension arms are respectively arranged at both ends of the two main beams, electric hoist groups are arranged at the ends of the extension arms, and shackles for connecting the single-blade slings are arranged at the bottom of the electric hoist group.

[0005] The utility model discloses a large wind farm impeller single blade installation hoist, after the crane is buckled into the hoist buckles at both ends of the two main beams through the crane sling, the crane sling is stretched out by the two ends of the two main beams, at this time a sufficient distance is formed between the crane slings, and the crane is more stable when pulling up the hoist base; in addition, extension arms are respectively provided at both ends of the two main beams, and electric hoist groups are provided at the ends of the four extension arms, and the impeller single blade is lifted by the electric hoist group through the shackle, which further increases the stability of the crane hoisting the impeller single blade, thereby speeding up the lifting time and improving the construction progress; in addition, since the main beams are connected by cross bars, the main beams are connected to form a whole to form the entire hoist base, thereby increasing the stability of the hoist base, and the crane is more stable when pulling up the hoist base.

[0006] As a preferred solution of the utility model, the extension arm is configured as an extension arm that is slightly tilted upward.

[0007] As a preferred solution of the utility model, the ends of the extension arms at both ends of the two main beams are provided with transverse sub-beams for overlapping the two extension arms, and the two ends of the transverse sub-beams are respectively provided with extension parts extending to the outside of the extension arms.

[0008] As a preferred solution of the utility model, the electric hoist group is respectively installed on the two extension ends of the transverse auxiliary beam at the end of the extension arm.

[0009] As a preferred solution of the utility model, the shackle comprises a shackle body and a shackle pin, and the shackle pin is inserted into the shackle body to fix the single-blade sling.

[0010] As a preferred solution of the utility model, an electric pulley is provided on the extension portion of the transverse sub-beam, and the electric pulley is connected to one end of the shackle pin through a chain.

[0011] As a preferred solution of the utility model, the bottom of the main beam is provided with a support leg which is slightly inclined outward and downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the hoisting of a single impeller blade in a wind farm in the background technology;

[0013] Figure 2 It is a schematic diagram of a large wind farm single-blade impeller installation hoisting device for hoisting a single impeller blade according to the utility model;

[0014] Figure 3 This is another schematic diagram of the utility model of hoisting a single blade of a large-scale wind farm impeller with a single blade installation hoist. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the present utility model, it needs to be explained that if there are directional indications involved in the embodiments of the present utility model (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0017] A single blade installation hanger for a large wind farm impeller, such as Figure 2 and Figure 3 As shown, it includes a sling base 1, main beams 2 are provided on both sides of the sling base, the main beams are connected by cross bars 3, sling buckles for connecting crane slings are provided at both ends of the two main beams, and extension arms 4 are provided at both ends of the two main beams, electric hoist groups 5 are provided at the ends of the extension arms, and shackles 6 for connecting single-blade slings are provided at the bottom of the electric hoist group.

[0018] After the crane is buckled into the sling buckles at both ends of the two main beams through the crane slings, the crane slings are stretched out by the two ends of the two main beams. At this time, a sufficient distance is formed between the crane slings, and the crane is more stable when lifting the sling base; in addition, extension arms are respectively provided at both ends of the two main beams, and electric hoist groups are provided at the ends of the four extension arms. The electric hoist group lifts the single blade of the impeller through the shackle, which further increases the stability of the crane lifting the single blade of the impeller, thereby speeding up the lifting time and improving the progress of the construction; in addition, since the main beams are connected by cross bars, the main beams are connected to each other as a whole to form the entire sling base, thereby increasing the stability of the sling base, and the crane is more stable when pulling the sling base.

[0019] The extension arm is configured to be slightly tilted upwards, and by tilting the extension arm slightly upwards, it is more convenient to hoist a single impeller blade; in addition, a support leg 11 slightly tilted outwards and downwards is provided at the bottom of the main beam to facilitate placement of the entire hoist base on the ground.

[0020] The ends of the extension arms at both ends of the two main beams are provided with transverse sub-beams 7 for overlapping the two extension arms, and the two ends of the transverse sub-beams are respectively provided with extensions 8 extending to the outside of the extension arms. The transverse sub-beams 7 can enhance the stability of the extension arms, and the crane is more stable when pulling up the base of the sling. In addition, since the electric hoist group is respectively installed on the two extension ends of the transverse sub-beam at the end of the extension arm, the crane sling is stretched by the two extensions of the transverse sub-beam, and a more sufficient spacing is formed between the crane slings, and the crane is more stable when pulling up the base of the sling.

[0021] The shackle 6 includes a shackle body 61 and a shackle pin 62. The shackle pin is inserted into the shackle body to fix the single-blade sling. The single-blade sling is locked and fixed by the shackle pin, thereby preventing the single-blade sling from falling off, which is safer. An electric pulley 9 is provided on the extension of the transverse sub-beam. The electric pulley is connected to one end of the shackle pin through a chain 10. The shackle pin can be removed from the shackle body by pulling the chain through the electric pulley, which is more convenient for disassembly of the single-blade sling, thereby speeding up the lifting time and improving the progress of the construction.

[0022] The above embodiments are only used to illustrate the detailed scheme of the utility model. The utility model is not limited to the above detailed scheme, that is, it does not mean that the utility model must rely on the above detailed scheme to be implemented. Those skilled in the art should understand that any improvement to the utility model, equivalent replacement of various raw materials of the utility model product, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the utility model.

Claims

1. A single-blade installation hanger for a large wind farm impeller, characterized in that: The utility model comprises a sling base (1), main beams (2) are arranged on both sides of the sling base, the main beams are connected to each other via cross bars (3), sling buckles for connecting a crane sling are arranged at both ends of the two main beams, and extension arms (4) are arranged at both ends of the two main beams, an electric hoist group (5) is arranged at the end of the extension arm, and a shackle (6) for connecting a single-blade sling is arranged at the bottom of the electric hoist group.

2. The large-scale wind farm impeller single-blade installation hanger according to claim 1, characterized in that: The extension arm is configured as an extension arm that tilts slightly upward.

3. The large-scale wind farm impeller single-blade installation hanger according to claim 1, characterized in that: The ends of the extension arms at both ends of the two main beams are provided with transverse sub-beams (7) for overlapping the two extension arms, and both ends of the transverse sub-beams are respectively provided with extension parts (8) extending to the outside of the extension arms.

4. The large-scale wind farm impeller single-blade installation hanger according to claim 3, characterized in that: The electric hoist group is respectively installed on the two extension ends of the transverse auxiliary beam at the end of the extension arm.

5. The large-scale wind farm impeller single-blade installation hanger according to claim 4, characterized in that: The shackle (6) comprises a shackle body (61) and a shackle pin (62), and the shackle pin is inserted into the shackle body to fix the single-blade sling.

6. The large-scale wind farm impeller single-blade installation hanger according to claim 5, characterized in that: An electric pulley (9) is provided on the extension of the transverse auxiliary beam, and the electric pulley is connected to one end of the shackle pin via a chain (10).

7. The large-scale wind farm impeller single-blade installation hanger according to any one of claims 1 to 6, characterized in that: The bottom of the main beam is provided with a support leg (11) which is slightly inclined outward and downward.

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