Pultrusion coiled material hoisting tool

Abstract

The utility model belongs to the technical field of hoisting tools, and particularly discloses a pultrusion coiled material hoisting tool which comprises a hoisting arm, four groups of hoisting units and four groups of connecting units, the hoisting arm is of a cross-shaped structure, and the four groups of hoisting units are respectively connected with four outer end points of the hoisting arm through the four groups of connecting units; the four groups of hoisting units are uniformly distributed at the periphery of the pultrusion coiled material and are used for fixing the pultrusion coiled material; and a hoisting ring is arranged at the central position of the hoisting arm. The pultrusion coiled material is hoisted from a plurality of positions, so that the pultrusion coiled material is balanced and stably hoisted, the impact on a hoisting sling and a cantilever is reduced, and the service life of the hoisting machine is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting tools, and particularly relates to a pultruded coil lifting tool. Background Technique

[0002] With the development of wind power generation technology, the size of wind turbine blades has been continuously increasing, and the material requirements for the blades have also become higher and higher. As a lightweight and high-strength material, pultruded coils have been widely used in the manufacture of wind turbine blades. At present, components such as nacelle covers, blade main beams, and fairings of wind turbine blades have begun to use pultruded coils.

[0003] At present, when unloading pultruded coils in the factory, due to limited factory space, the traditional single-arm crane beam and single sling clamping lifting method is still used. When the pultruded coil is lifted to a completely suspended state, there is a huge impact on the cantilever of the crane and the lifting sling. Prolonged use will greatly reduce the service life of the crane and there are also certain safety hazards. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pultruded coil lifting tool, which hoists the pultruded coil from multiple positions to ensure the balanced and stable hoisting of the pultruded coil, reduce the impact on the lifting sling and the cantilever, and improve the service life of the crane.

[0005] In order to achieve the above purpose, the technical solution of the utility model is: a pultruded coil lifting tool, including a lifting arm, four groups of lifting units and four groups of connecting units. The lifting arm has a cross-shaped structure, and the four groups of lifting units are respectively connected to the four outer ends of the lifting arm through the four groups of connecting units; the four groups of lifting units are evenly distributed around the pultruded coil and are used to fix the pultruded coil; a lifting ring is provided at the central position of the lifting arm.

[0006] Further, the lifting unit includes a sling. The lower side of the sling is used to lift the pultruded coil, and the upper side of the sling is connected to the lifting arm.

[0007] Further, a fixing ring is provided on the upper side of the sling; the connecting unit includes a connecting frame and a connecting component. A connecting channel is provided inside the lower side of the connecting frame; connecting through holes corresponding to the connecting channel one by one are provided on the side of the connecting frame; each group of connecting components includes two connecting parts corresponding to the fixing ring one by one. Each group of connecting parts includes a connecting bolt and a connecting nut. The head of the connecting bolt and the connecting nut cannot pass through the connecting through hole; the threaded section of the connecting bolt can pass through the connecting through hole and the fixing ring, and can be threadedly connected with the connecting nut. The threaded section of the connecting bolt can lift the fixing ring, and the head of the connecting bolt and the connecting nut are respectively located outside both sides of the connecting frame; the lifting arm is fixed on the upper side of the connecting frame.

[0008] Further, at least three sets of dividing blocks are arranged inside the lower side of the connecting frame, and a connecting channel is formed between two adjacent sets of dividing blocks.

[0009] Further, the upper side of the dividing block can support the lifting arm.

[0010] Further, the upper side of the connecting frame is a chamber matching the lifting arm, and the lifting arm is fixed inside the chamber of the connecting frame.

[0011] Further, fixing threaded holes are arranged on the outer side of the connecting frame, threaded rods are connected to the fixing threaded holes in a threaded manner, a limiting block is connected to the side of the threaded rod away from the lifting arm, the limiting block is located on the outer side of the connecting frame and cannot pass through the fixing threaded hole, and a rotating ring is arranged on the side of the limiting block away from the threaded rod.

[0012] Further, a cross-shaped reinforcing rib is arranged on the upper side of the lifting arm.

[0013] Further, the lifting ring is arranged on the reinforcing rib.

[0014] The working principle of this technical solution is as follows: The pultruded coil is stacked layer by layer on the ground, and the pultruded coil is hooped by sling straps at four evenly distributed positions. Then, connecting bolts are sequentially passed through the connecting through holes on one side of the connecting frame, the fixing rings of the sling straps, and the connecting through holes on the other side of the connecting frame. After that, nuts are used to fix the connecting bolts, and the heads of the connecting bolts and the end faces of the connecting nuts are both abutted against the connecting frame. Finally, the hook of the crane is hooked on the lifting ring at the top of the lifting arm, and the pultruded coil is vertically lifted, slowly moved, and smoothly unloaded. During the unloading process, only the connecting nuts need to be unscrewed and the connecting bolts need to be taken out to realize the separation of the sling strap from the lifting arm.

[0015] The beneficial effects of this technical solution are as follows: The pultruded coil is hoisted from multiple positions, ensuring the balanced and stable hoisting of the pultruded coil, reducing the impact on the lifting sling straps and the cantilever, and improving the service life of the crane. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the use of a pultruded coil lifting tooling of the present utility model;

[0017] Figure 2 is Figure 1 the front view of

[0018] Figure 3 is Figure 1 the top view of

[0019] Figure 4This is a schematic structural diagram of a pultruded coil lifting tooling of the present utility model;

[0020] Figure 5 It is Figure 4 a schematic structural diagram of the connecting frame after removing one side plate in [the figure]. Specific embodiments

[0021] The following will be further described in detail through specific embodiments:

[0022] The reference numerals in the accompanying drawings of the specification include: lifting arm 1, pultruded coil 2, lifting unit 3, connecting unit 4, sling 5, fixing ring 6, connecting frame 7, connecting component 8, segmentation block 9, connecting channel 10, connecting through hole 11, connecting bolt 12, connecting nut 13, limiting block 14, rotating ring 15, reinforcing rib 16, lifting ring 17.

[0023] The following will combine the accompanying drawings in the embodiments of the present utility model to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The embodiment is basically as shown in the attached Figures 1-5 figure: A pultruded coil lifting tooling includes a lifting arm 1, four groups of lifting units 3 and four groups of connecting units 4. The lifting arm 1 has a cross-shaped structure, and the four groups of lifting units 3 are respectively connected to the four outer ends of the lifting arm 1 through the four groups of connecting units 4.

[0025] The four groups of lifting units 3 are evenly distributed around the pultruded coil 2 and are used to hold the pultruded coil 2; the lifting unit 3 includes a sling 5. The lower side of the sling 5 is used to lift the pultruded coil 2, the upper side of the sling 5 is connected to the lifting arm 1, and a fixing ring 6 is provided on the upper side (that is, the free end) of the sling 5.

[0026] The connecting unit 4 includes a connecting frame 7 and a connecting component 8. A connecting channel 10 is provided inside the lower side of the connecting frame 7; as Figure 5As shown in the figure, there are at least three sets of dividing blocks 9 inside the lower side of the connecting frame 7. A connecting channel 10 is formed between two adjacent sets of dividing blocks 9. In this embodiment, there are six sets of dividing blocks 9, forming five sets of connecting channels 10. The upper side of the dividing block 9 can support the lifting arm 1. Connecting through holes 11 corresponding to the connecting channels 10 one by one are provided on the side surface of the connecting frame 7. Each set of connecting components includes two connecting parts corresponding to the fixing rings 6 one by one. Each connecting part includes a connecting bolt 12 and a connecting nut 13. The head of the connecting bolt 12 and the connecting nut 13 cannot pass through the connecting through hole 11; the threaded section of the connecting bolt 12 can pass through the connecting through hole 11 and the fixing ring 6, and can be threadedly connected with the connecting nut 13. The threaded section of the connecting bolt 12 can lift the fixing ring 6, and the head of the connecting bolt 12 and the connecting nut 13 are respectively located outside both sides of the connecting frame 7.

[0027] The lifting arm 1 is fixed on the upper side of the connecting frame 7. Specifically, the lifting arm 1 is a rectangular profile, and the upper side of the connecting frame 7 is a chamber matching the lifting arm 1. The lifting arm 1 is fixed in the chamber of the connecting frame 7, specifically by welding in the chamber. Fixed threaded holes are provided on the outer side of the connecting frame 7. A screw rod is threadedly connected in the fixed threaded hole. A limiting block 14 is connected to the side of the screw rod away from the lifting arm 1. The limiting block 14 is located outside the connecting frame 7 and cannot pass through the fixed threaded hole. A rotating ring 15 is provided on the side of the limiting block 14 away from the screw rod.

[0028] A lifting ring 17 is provided at the central position of the lifting arm 1. Specifically, a cross-shaped reinforcing rib 16 is provided on the upper side of the lifting arm 1, and the lifting ring 17 is provided on the reinforcing rib 16.

[0029] The specific implementation process is as follows:

[0030] The pultruded coils 2 are stacked layer by layer on the ground, and the pultruded coils 2 are hooped at four evenly distributed positions by the sling 5. Then, the connecting bolts 12 are used to pass through the connecting through holes 11 on one side of the connecting frame 7, the fixing rings 6 of the sling 5, and the connecting through holes 11 on the other side of the connecting frame 7 in sequence. Then, the connecting bolts 12 are fixed with nuts, and the end faces of the heads of the connecting bolts 12 and the connecting nuts 13 are both abutted against the connecting frame 7. Finally, the hook of the crane is hooked on the lifting ring 17 at the top of the lifting arm 1, and the pultruded coils 2 are vertically lifted and slowly moved to unload the materials smoothly. During the unloading process, only the connecting nut 13 needs to be unscrewed and the connecting bolt 12 needs to be taken out to separate the sling 5 from the lifting arm 1.

[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0032] The above are only embodiments of the present utility model. Common knowledge such as the specific structures and characteristics in the prior art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the utility model pertains before the filing date or the priority date, are able to know all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not be an obstacle for those of ordinary skill in the art to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A pultruded coil lifting tooling, characterized in that: It includes a lifting arm (1), four groups of lifting units (3) and four groups of connecting units (4). The lifting arm (1) has a cross-shaped structure, and the four groups of lifting units (3) are respectively connected to the four outer ends of the lifting arm (1) through the four groups of connecting units (4); the four groups of lifting units (3) are evenly distributed around the pultruded coil (2) and are used to fix the pultruded coil (2); a lifting ring (17) is provided at the center position of the lifting arm (1).

2. The pultruded coil lifting tooling according to claim 1, wherein: The lifting unit (3) includes a sling (5). The lower side of the sling (5) is used to lift the pultruded coil (2), and the upper side of the sling (5) is connected to the lifting arm (1).

3. The pultruded coil lifting tooling according to claim 2, characterized in that: A fixing ring (6) is provided on the upper side of the sling (5); the connecting unit (4) includes a connecting frame (7) and a connecting component (8). A connecting channel (10) is provided inside the lower side of the connecting frame (7); connecting through holes (11) corresponding to the connecting channel (10) one by one are provided on the side of the connecting frame (7); each group of connecting components (8) includes two connecting parts corresponding to the fixing ring (6) one by one. Each group of connecting parts includes a connecting bolt (12) and a connecting nut (13). The head of the connecting bolt (12) and the connecting nut (13) cannot pass through the connecting through hole (11); the threaded section of the connecting bolt (12) can pass through the connecting through hole (11) and the fixing ring (6), and can be threadedly connected to the connecting nut (13). The threaded section of the connecting bolt (12) can lift the fixing ring (6), and the head of the connecting bolt (12) and the connecting nut (13) are respectively located outside both sides of the connecting frame (7); the lifting arm (1) is fixed on the upper side of the connecting frame (7).

4. The pultruded coil lifting tooling according to claim 3, characterized in that: At least three dividing blocks (9) are provided inside the lower side of the connecting frame (7), and the connecting channel (10) is formed between two adjacent dividing blocks (9).

5. The pultruded coil lifting tooling according to claim 4, characterized in that: The upper side of the dividing block (9) can support the lifting arm (1).

6. The pultruded coil lifting tooling according to claim 5, wherein: The upper side of the connecting frame (7) is a chamber matching the lifting arm (1), and the lifting arm (1) is fixed inside the chamber of the connecting frame (7).

7. The pultruded coil lifting tooling according to claim 6, characterized in that: Fixed threaded holes are provided on the outer side of the connecting frame (7). Screws are threadedly connected in the fixed threaded holes. A limiting block (14) is connected to the side of the screw away from the lifting arm (1). The limiting block (14) is located outside the connecting frame (7) and cannot pass through the fixed threaded hole. A rotating ring (15) is provided on the side of the limiting block (14) away from the screw.

8. The pultruded coil lifting tooling according to claim 1, characterized in that: A cross-shaped reinforcing rib (16) is provided on the upper side of the lifting arm (1).

9. The pultruded coil lifting tooling according to claim 8, wherein: The lifting ring (17) is provided on the reinforcing rib (16).

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