Positioning device for offshore wind power tower processing

Abstract

This utility model discloses a positioning device for processing offshore wind turbine towers, including a lifting mechanism. The lifting mechanism includes a support plate, multiple reinforcing blocks embedded on both sides of the support plate, outriggers rotatably connected to the reinforcing blocks, casters connected to the bottom ends of the outriggers, and multiple bidirectional electric push rods embedded in the bottom of the support plate. The bidirectional electric push rods are movably connected between two opposing outriggers. In this utility model, the movable ends of the multiple bidirectional electric push rods are controlled to retract, and then the outriggers, with the assistance of the casters, retract towards the center of the support plate, thereby raising the support plate so that it can be positioned to one side of the wind turbine tower. Then, the movable ends of the multiple bidirectional electric push rods are controlled to extend, and under the same principle, the multiple outriggers lower the support plate. After the bottom of the support plate touches the ground, the wind turbine tower is placed on top of the support plate using external hoisting equipment. The wind turbine tower is lifted and lowered in place, improving the safety of hoisting.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine tower processing technology, specifically a positioning device for offshore wind turbine tower processing. Background Technology

[0002] A wind turbine tower is the support structure for wind power generation, primarily serving a supporting role in wind turbine generator sets while also absorbing vibrations from the unit. The general manufacturing process for wind turbine towers is as follows: CNC cutting machine cuts the material; thick plates require beveling; after rolling, the plates are spot-welded, positioned, and confirmed before welding the inner and outer longitudinal seams; roundness is checked, and if any issues are found, a second rounding is performed; after each section of the tower is welded, a hydraulic assembly roller frame is used for spot welding; then, the inner and outer circumferential seams are welded, and straightness and other tolerances are checked; after welding the flanges, non-destructive testing and flatness checks are performed on the welds; after sandblasting and painting, the internal components are installed, and the finished product is inspected before being transported to the installation site.

[0003] Existing tower positioning devices generally adopt a fixed structure. Their operation process requires hoisting the entire formed tower section onto the device. Given the large size and significant weight of the tower section, the entire hoisting process poses a great safety hazard. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A positioning device for processing offshore wind turbine towers includes a lifting mechanism, which includes a support plate, multiple reinforcing blocks embedded on both sides of the support plate, legs rotatably connected to the reinforcing blocks, casters connected to the bottom ends of the legs, multiple bidirectional electric push rods embedded in the bottom of the support plate, the bidirectional electric push rods being movably connected between two opposing legs, and a clamping mechanism, which includes two arc-shaped covers rotatably connected to the top of the support plate, a threaded rod detachably connected between the support plate and the arc-shaped covers, a T-shaped rod slidingly passing through the top of the arc-shaped covers, two clamping plates connected to the bottom ends of the T-shaped rods, and two tension springs connected between the arc-shaped covers and the T-shaped rods.

[0007] By adopting the above technical solution, the movable ends of multiple bidirectional electric push rods are controlled to retract, and then the outriggers, with the assistance of casters, retract towards the center of the pallet, thereby raising the pallet so that it can come to one side of the wind turbine tower. Then, the movable ends of multiple bidirectional electric push rods are controlled to extend, and under the same principle, multiple outriggers lower the pallet. After the bottom of the pallet touches the ground, the wind turbine tower is placed on top of the pallet using external hoisting equipment. The wind turbine tower is then lifted and lowered in place, improving the safety of hoisting.

[0008] In a preferred embodiment, the present invention can be further configured as follows: multiple legs are arranged in pairs, forming three groups, with the three groups of legs equidistantly arranged along the long side of the support plate, and two legs in each group being vertically symmetrical about multiple bidirectional electric push rods.

[0009] In a preferred embodiment, the present invention can be further configured such that: the bottom of the tray has a plurality of grooves suitable for the installation of bidirectional electric push rods, and the groove depth is greater than the thickness of the bidirectional electric push rod cylinder.

[0010] In a preferred embodiment, this utility model can be further configured such that: multiple bidirectional electric push rods are staggered with two arc-shaped covers, and the multiple bidirectional electric push rods are connected in series.

[0011] In a preferred embodiment, the present invention can be further configured such that: the two ends of the pallet are provided with slopes, and the inside of the pallet is provided with an arc surface.

[0012] In a preferred embodiment, the present invention can be further configured such that a protective plate is fixedly connected inside the groove, and the protective plate is attached to the bottom of the bidirectional electric push rod cylinder body.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, the movable ends of multiple bidirectional electric push rods are controlled to retract, and then the outriggers, with the assistance of casters, retract towards the center of the pallet, thereby raising the pallet so that it can come to one side of the wind turbine tower body. Then, the movable ends of multiple bidirectional electric push rods are controlled to extend, and under the same principle, multiple outriggers lower the pallet. After the bottom of the pallet touches the ground, the wind turbine tower is placed on top of the pallet using external hoisting equipment. The wind turbine tower is lifted and lowered in place, improving the safety of hoisting.

[0015] 2. In this utility model, during the lowering of the wind turbine tower, the movable ends of multiple bidirectional electric push rods extend. Under the same principle, multiple outriggers lower the support plate. After the bottom of the support plate touches the ground, the wind turbine tower will fit against the arc surface, thereby reducing the impact of the wind turbine tower on the support plate and reducing the probability of damage to the support plate. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a bottom view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the holding mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.

[0020] Figure label:

[0021] 100. Support mechanism; 110. Pallet; 120. Reinforcing block; 130. Support leg; 140. Casters; 150. Two-way electric push rod;

[0022] 200. Clamping mechanism; 210. Arc cover; 220. Threaded rod; 230. T-shaped rod; 240. Clamping plate; 250. Tension spring;

[0023] 300. Slope;

[0024] 400. Protective plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a positioning device for processing offshore wind turbine towers.

[0028] Example 1:

[0029] Combination Figure 1-4 As shown, the present invention provides a positioning device for processing offshore wind turbine towers, including a lifting mechanism 100. The lifting mechanism 100 includes a support plate 110, a plurality of reinforcing blocks 120 embedded on both sides of the support plate 110, a support leg 130 rotatably connected to the reinforcing blocks 120, a universal wheel 140 connected to the bottom end of the support leg 130, and a plurality of bidirectional electric push rods 150 embedded in the bottom of the support plate 110. The bidirectional electric push rods 150 are movably connected between two opposing support legs 130.

[0030] The clamping mechanism 200 includes two arc-shaped covers 210 rotatably connected to the top of the support plate 110, a threaded rod 220 detachably connected between the support plate 110 and the arc-shaped covers 210, a T-shaped rod 230 slidably passing through the top of the arc-shaped covers 210, two clamping plates 240 connected to the bottom end of the T-shaped rod 230, and two tension springs 250 connected between the arc-shaped covers 210 and the T-shaped rod 230.

[0031] Furthermore, the multiple support legs 130 are arranged in pairs, forming three groups. The three groups of support legs 130 are equidistant along the long side of the support plate 110. The two support legs 130 in each group are vertically symmetrical about the multiple bidirectional electric push rods 150. The layout design of the multiple support legs 130 can stably support the support plate 110, so that the support plate 110 can stably support the wind turbine tower.

[0032] Furthermore, the bottom of the tray 110 is provided with a plurality of grooves suitable for the installation of the bidirectional electric push rod 150. The groove depth is greater than the cylinder thickness of the bidirectional electric push rod 150. The grooves provide conditions for storing the bidirectional electric push rod 150 and ensure that the bidirectional electric push rod 150 will not be damaged when the tray 110 touches the ground.

[0033] Furthermore, multiple bidirectional electric actuators 150 are staggered with two arc caps 210, and the multiple bidirectional electric actuators 150 are connected in series. The layout design of the arc caps 210 can firmly press the wind turbine tower body. The connection method of the multiple bidirectional electric actuators 150 makes the device easy to control.

[0034] Example 2:

[0035] Combination Figure 1 , 3 and Figure 4 As shown, based on Embodiment 1, the support plate 110 has slopes 300 at both ends and an inner arc surface. The slopes 300 facilitate the wind turbine tower sliding down from the slope 300 position.

[0036] Example 3:

[0037] Combination Figure 2 As shown, in the above embodiment, a protective plate 400 is fixedly connected inside the groove. The protective plate 400 is attached to the bottom of the cylinder body of the bidirectional electric push rod 150. The protective plate 400 can protect the bidirectional electric push rod 150 and reduce the probability of damage when the bidirectional electric push rod 150 moves horizontally.

[0038] The working principle and usage process of this utility model are as follows: When this device is put into actual use, the wind turbine tower is raised a certain distance using external hoisting equipment. Then, the movable ends of multiple bidirectional electric push rods 150 are retracted, and the outriggers 130, with the assistance of casters 140, retract towards the center of the support plate 110, thereby raising the support plate 110. Then, the support plate 110 is pushed to the bottom of the wind turbine tower. After that, the movable ends of multiple bidirectional electric push rods 150 are extended, and under the same principle, the multiple outriggers 130 lower the support plate 110. After the bottom of the support plate 110 touches the ground, the wind turbine tower is placed on top of the support plate 110 using external hoisting equipment. This reduces the impact of the wind turbine tower on the support plate 110 and reduces the probability of damage to the support plate 110. Then, the arc cover 210 is flipped over, the threaded rod 220 is tightened, and then the T-shaped rod 230 and the clamping plate 240 are firmly attached to the outside of the wind turbine tower under the action of the tension spring 250, thereby improving the stability of the wind turbine tower during processing.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A positioning device for offshore wind turbine tower fabrication, characterized in that, include: The lifting mechanism (100) includes a tray (110), a plurality of reinforcing blocks (120) embedded on both sides of the tray (110), a support leg (130) rotatably connected to the reinforcing block (120), a universal wheel (140) connected to the bottom end of the support leg (130), and a plurality of bidirectional electric push rods (150) embedded in the bottom of the tray (110). The bidirectional electric push rods (150) are movably connected between two opposing support legs (130). The clamping mechanism (200) includes two arc-shaped covers (210) rotatably connected to the top of the support plate (110), a threaded rod (220) detachably connected between the support plate (110) and the arc-shaped covers (210), a T-shaped rod (230) slidably passing through the top of the arc-shaped covers (210), two clamping plates (240) connected to the bottom end of the T-shaped rod (230), and two tension springs (250) connected between the arc-shaped covers (210) and the T-shaped rod (230).

2. The positioning device for offshore wind tower fabrication according to claim 1, characterized in that, Multiple support legs (130) are arranged in pairs to form three groups. The three groups of support legs (130) are arranged equidistantly along the long side of the support plate (110). The two support legs (130) in each group are vertically symmetrical about multiple bidirectional electric push rods (150).

3. The positioning device for processing offshore wind turbine towers according to claim 1, characterized in that, The bottom of the support plate (110) is provided with a plurality of grooves suitable for the installation of the bidirectional electric push rod (150), and the groove depth is greater than the cylinder body thickness of the bidirectional electric push rod (150).

4. A positioning device for processing offshore wind turbine towers according to claim 1, characterized in that, Multiple bidirectional electric actuators (150) are staggered with two arc caps (210), and the multiple bidirectional electric actuators (150) are connected in series.

5. A positioning device for processing offshore wind turbine towers according to claim 1, characterized in that, The pallet (110) has slopes (300) at both ends and an inner arc surface.

6. A positioning device for processing offshore wind turbine towers according to claim 3, characterized in that, A protective plate (400) is fixedly connected inside the groove, and the protective plate (400) is attached to the bottom of the cylinder body of the bidirectional electric push rod (150).

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