Assembling tool for supporting leg and fulcrum seat of large-scale offshore photovoltaic platform

Abstract

The utility model discloses an assembling tool for supporting legs and fulcrum seats of a large offshore photovoltaic platform. The assembling tool comprises a lower positioning structure, an upper positioning structure and four hydraulic jacks. The lower positioning structure comprises a lower supporting plate and four outer guide blocks; the four outer guide blocks are symmetrically fixed to the center of the top face of the lower supporting plate with the surface center of the lower supporting plate as the center. The upper positioning structure comprises an upper supporting plate, four positioning plates and four inner guide plates; the four positioning plates are symmetrically and radially fixed to the center of the top face of the upper supporting plate with the center of the surface of the upper supporting plate as the center, and the inner end face of each positioning plate is an inclined face matched with the peripheral face of the fulcrum base. The four inner guide plates are symmetrically fixed to the center of the bottom face of the upper supporting plate with the center of the surface of the upper supporting plate as the center. The four hydraulic jacks are installed between the top face of the lower supporting plate and the bottom face of the lower supporting plate and located among the four outer guide blocks in a one-to-one correspondence mode. According to the utility model, the assembling difficulty is reduced and the operation time is shortened.

Description

Technical Field

[0001] This utility model relates to a tooling assembly for the legs and fulcrum of a large offshore photovoltaic platform. Background Technology

[0002] Offshore photovoltaic (PV) systems are solar photovoltaic power generation systems constructed in nearshore, tidal flat, and other marine environments. They effectively utilize vast marine resources, reduce the occupation of land resources, and minimize environmental impact. Currently, the main structures of offshore PV systems are either floating or pile-fixed. A offshore PV project in Shandong Province uses a pile-fixed structure. An offshore PV system consists of a PV platform and four piles driven into the sea. PV modules are installed on the top surface of the PV platform. The PV platform has a truss structure with four legs at the bottom. Each of the four legs has a support seat 2 fixed to its lower end. The support seat 2 is an inverted frustum with a spherical top surface. Each leg consists of three diagonal braces 1 at different angles, and the lower ends of the three diagonal braces 1 are jointly fixed to the spherical surface of the support seat 2. The PV platform is usually fabricated on land and then transported to the sea by ship. The four support seats 2 at the bottom of the PV platform are then welded one-to-one to the connecting seats 2A on the top of the four piles 100, causing the top surface of the PV platform 100 to tilt at 15° (see...). Figure 1 The welding between the lower ends of the three diagonal rods 1 that make up each leg and the spherical surface of the fulcrum 2 is a key step in the fabrication of the photovoltaic steel platform. The assembly gap directly affects the welding quality and the structural safety of the photovoltaic platform.

[0003] The current method for connecting and fixing the outriggers and the fulcrum is to first place the fulcrum on the positioning cylinder, then assemble the outriggers and the inverted conical ball, and finally weld the outriggers and the inverted conical ball.

[0004] The current method of connecting and fixing the outriggers and the fulcrum has the following disadvantages: 1. If the length of the outrigger is laid out according to the dimensions in the design drawings, the assembly of the outrigger and the fulcrum is difficult and time-consuming; 2. If the length of the outrigger is smaller than the dimensions in the design drawings, the assembly gap between the outrigger and the fulcrum will be too large, which will lead to an excessively large welding gap. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the prior art and provide an assembly tooling for the outriggers and fulcrums of large offshore photovoltaic platforms. It can reduce the difficulty of assembling the outriggers and fulcrums, shorten the operation time, and ensure the assembly gap between the outriggers and fulcrums.

[0006] The purpose of this utility model is achieved as follows: a tooling for assembling the outriggers and fulcrum of a large offshore photovoltaic platform, comprising a lower positioning structure, an upper positioning structure, and four hydraulic jacks; wherein,

[0007] The lower positioning structure includes a lower support plate and four outer guide blocks; the four outer guide blocks are symmetrically fixed to the center of the top surface of the lower support plate with the center of the surface of the lower support plate as the center.

[0008] The upper positioning structure includes an upper support plate, four positioning plates, and four inner guide plates. The four positioning plates are radially fixed to the center of the top surface of the upper support plate with the center of the upper support plate as the center. The inner end face of each positioning plate is an inclined surface that matches the outer peripheral surface of the inverted cone of the fulcrum. The size of the inverted cone formed by the inner end faces of the four positioning plates matches the size of the bottom outer peripheral surface of the fulcrum. The four inner guide plates are symmetrically fixed to the center of the bottom surface of the upper support plate with the center of the upper support plate as the center. The outer diameter of the four inner guide plates matches the inner diameter of the four outer guide blocks in the lower positioning structure.

[0009] Four hydraulic jacks are installed between the top and bottom surfaces of the lower support plate and are positioned one-to-one between the four outer guide blocks.

[0010] The aforementioned assembly fixture for the outriggers and fulcrums of the large offshore photovoltaic platform includes four reinforcing ribs fixed to the center of the bottom surface of the upper support plate and connected in a cross shape in the upper positioning structure. The outer end faces of the four reinforcing ribs are connected one-to-one with the middle of the inner end faces of the four inner guide plates.

[0011] The assembly tooling for the outriggers and fulcrum seats of the large offshore photovoltaic platform of this utility model has the following characteristics: it enables the fulcrum seats to move in the vertical direction, which can reduce the difficulty of assembling the outrigger diagonal rods and fulcrum seats, shorten the operation time, and ensure the assembly gap between the outrigger diagonal rods and fulcrum seats. Attached Figure Description

[0012] Figure 1 This is a side view of the main body of a large-scale offshore photovoltaic system;

[0013] Figure 2 This is a perspective view of the assembly tooling for the outriggers and fulcrum seats of the large offshore photovoltaic platform of this utility model.

[0014] Figure 3 This is a perspective view of the lower positioning structure in the assembly tooling of this utility model;

[0015] Figure 4 This is a perspective view of the upper positioning structure in the assembly tooling of this utility model;

[0016] Figure 5 This is a perspective view of the working state of the assembly tooling of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Please see Figures 1 to 5 The assembly tooling for the outriggers and fulcrums of the large offshore photovoltaic platform of this utility model includes a lower positioning structure 20, an upper positioning structure 10, and four hydraulic jacks 30.

[0019] The lower positioning structure 20 includes a lower support plate 21 and four outer guide blocks 22; wherein, the four outer guide blocks 22 are fixed symmetrically to the center of the top surface of the lower support plate 21 with the center of the surface of the lower support plate 21 as the center; the outer guide blocks 22 are I-beams.

[0020] The upper positioning structure 10 includes an upper support plate 11, four positioning plates 12, four inner guide plates 14, and four reinforcing ribs 13. The four positioning plates 12 are radially fixed to the top center of the upper support plate 11 with the center of their surfaces symmetrically positioned. The inner end face of each positioning plate 12 is an inclined surface adapted to the inverted conical outer peripheral surface of the fulcrum 2, and the size of the inverted truncated cone formed by the inner end faces of the four positioning plates 12 is adapted to the size of the bottom outer peripheral surface of the fulcrum 2. The four inner guide plates 14 are fixed to the bottom center of the upper support plate 11 with the center of their surfaces symmetrically positioned. The outer diameter of the four inner guide plates 14 is adapted to the inner diameter of the four outer guide blocks 22 in the lower positioning structure. The four reinforcing ribs 13 are fixed to the center of the bottom surface of the upper support plate 11 and connected in a cross shape. The outer end faces of the four reinforcing ribs 13 are connected one-to-one to the middle of the inner end faces of the four inner guide plates 14.

[0021] Four hydraulic jacks 30 are installed between the top surface of the lower support plate 21 and the bottom surface of the lower support plate 11, and are located between the four outer guide blocks 22 in a corresponding manner.

[0022] The working principle of the assembly tooling for the outriggers and fulcrum seats of the large offshore photovoltaic platform of this utility model is as follows: four positioning plates 12 can restrict the movement of the fulcrum seat 2 in the horizontal direction; the upper support plate 11 is the support surface of the fulcrum seat 2; the upper support plate 11 and the lower support plate 21 provide a lifting support surface for the four hydraulic jacks 30; the four inner guide plates 14 and the four outer guide blocks 22 jointly prevent the upper support plate 11 from moving in the horizontal direction and control the upper support plate 11 to move in the vertical direction; the four hydraulic jacks 30 provide lifting force for the upper positioning structure 10 and the inverted conical ball 2; the upper positioning structure 10 and the fulcrum seat 2 rise and fall in the vertical direction with the rise and fall of the four hydraulic jacks 30.

[0023] The operation method of the assembly tooling for the outriggers and fulcrum seats of the large offshore photovoltaic platform of this utility model is as follows: First, adjust the stroke of the four hydraulic jacks 30 of the assembly tooling 3 to the minimum value. Then, place the fulcrum seat 2 between the four positioning plates 101 of the upper positioning structure 10. Next, adjust and fix the inclination angle of the three outrigger diagonal rods 1 with the ground. Then, operate the four hydraulic jacks 30 to lift the upper support plate 11 at the same time, so that the upper positioning structure 10 moves smoothly upward along the vertical direction with the fulcrum seat 2. When the assembly gap between the spherical surface of the fulcrum seat 2 and the lower end of the three outrigger diagonal rods 1 is just right, stop operating the four hydraulic jacks 30. Then, weld the fulcrum seat 2 and the lower end of the three outrigger diagonal rods 1.

[0024] The above embodiments are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. A tooling assembly for the outriggers and fulcrum of a large offshore photovoltaic platform, comprising a lower positioning structure, an upper positioning structure, and four hydraulic jacks; characterized in that, The lower positioning structure includes a lower support plate and four outer guide blocks; the four outer guide blocks are symmetrically fixed to the center of the top surface of the lower support plate with the center of the surface of the lower support plate as the center. The upper positioning structure includes an upper support plate, four positioning plates, and four inner guide plates. The four positioning plates are radially fixed to the center of the top surface of the upper support plate with the center of the upper support plate as the center. The inner end face of each positioning plate is an inclined surface that matches the outer peripheral surface of the inverted cone of the fulcrum. The size of the inverted cone formed by the inner end faces of the four positioning plates matches the size of the bottom outer peripheral surface of the fulcrum. The four inner guide plates are symmetrically fixed to the center of the bottom surface of the upper support plate with the center of the upper support plate as the center. The outer diameter of the four inner guide plates matches the inner diameter of the four outer guide blocks in the lower positioning structure. Four hydraulic jacks are installed between the top and bottom surfaces of the lower support plate and are positioned one-to-one between the four outer guide blocks.

2. The assembly tooling for the legs and fulcrum seats of a large offshore photovoltaic platform according to claim 1, characterized in that, The upper positioning structure consists of four reinforcing ribs fixed to the center of the bottom surface of the upper support plate and connected in a cross shape. The outer end faces of the four reinforcing ribs are connected to the middle of the inner end faces of the four inner guide plates.

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