Self-adaptive offshore photovoltaic steel grid integral turnover lifting appliance

Abstract

The utility model belongs to the technical field of steel structure hoisting, and provides a self-adaptive offshore photovoltaic steel grid integral turnover hoisting sling which comprises a hoisting truss, adjusting rails which are parallel to each other are arranged on the two sides of the hoisting truss respectively, two electric hoists are arranged on the adjusting rails, and the two electric hoists are arranged on the hoisting truss. The movable ends of the electric hoists are connected with lifting suspenders, the lifting suspenders are used for being connected with an offshore photovoltaic steel grid, and a horizontal adjusting unit is arranged in the adjusting track and used for driving the two electric hoists on the adjusting track to be close to or away from each other. The lifting appliance is applied to integral lifting of pile foundation fixed type photovoltaic support units on the sea, on the water and the like, the lifting appliance is lifted by turning over, the construction lifting processes of lifting transportation, lifting installation and the like of pre-assembly of the photovoltaic support units are achieved, and the problems that photovoltaic equipment is inconvenient to assemble on the sea or on the water and low in efficiency are solved. The device can safely, reliably and efficiently complete operations such as hooking, turning over, hoisting and unhooking.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structure hoisting, and specifically relates to an adaptive offshore photovoltaic steel grid integral turning hoisting device. Background Art

[0002] Offshore photovoltaic projects are emerging industries, and technical routes are being explored. The installation inclination angle of the bracket unit has a great impact on the efficiency of the photovoltaic power generation system. For fixed grid-connected photovoltaic power generation systems, the inclination angle should maximize the annual radiation received on the inclined surface of the photovoltaic array. Offshore photovoltaics currently use large-span steel grids as their photovoltaic brackets. The upper bracket units of offshore photovoltaics have large spans, occupy a large area, and are limited in site. In order to reduce construction safety risks and improve construction efficiency, the upper bracket units are usually completed on land in a 0° manner. A series of assembly, installation and commissioning work, and then shipped as a whole to the designated location at sea. At present, there is no mature precedent for the overall turning over and hoisting of offshore photovoltaic bracket units in the field nationwide. Similar projects are exploring a set of reliable, safe, and efficient turning over and hoisting equipment to improve the stability and efficiency of the overall hoisting and installation of photovoltaic bracket units, and to achieve the operability of large-scale overall hoisting and installation construction methods for offshore photovoltaic bracket units. Utility Model Content

[0003] The purpose of the utility model is to provide an adaptive offshore photovoltaic steel grid integral turning over lifting sling, which is used for the integral lifting of pile-based fixed photovoltaic bracket units at sea and on the water surface. Through the turning over lifting sling, the pre-assembled lifting transportation, lifting installation and other construction lifting processes of the photovoltaic bracket unit can be realized, avoiding the inconvenience and low efficiency of the assembly operation of photovoltaic equipment at sea or on water.

[0004] The technical solution adopted by the utility model is an adaptive offshore photovoltaic steel grid integral turning lifting sling, including a lifting truss, wherein mutually parallel adjustment rails are respectively arranged on both sides of the lifting truss, and two electric hoists are arranged on the adjustment rails. The movable end of the electric hoist is provided with a lifting rod, and the lifting rod is used to be connected with the offshore photovoltaic steel grid. A horizontal adjustment unit is arranged in the adjustment rail to drive the two electric hoists on the adjustment rails to move closer to or away from each other.

[0005] Furthermore, a plurality of lifting ears are arranged on the top surface of the lifting truss, and the lifting ears can be connected to external lifting equipment through lifting belts.

[0006] Furthermore, a U-shaped buckle body is connected to the end of the sling, and the U-shaped buckle body is fixedly connected to the lifting ear by a bolt.

[0007] Furthermore, a hook is installed at the bottom end of the lifting boom for connecting with the photovoltaic support.

[0008] Furthermore, limit switches are installed at both ends of the adjustment track.

[0009] The beneficial effects of the utility model are:

[0010] The utility model is applied to the overall hoisting of the photovoltaic support unit fixed with pile foundation at sea and on the water surface. Through the hoisting sling, the hoisting transportation, hoisting installation and other construction hoisting processes of the pre-assembled photovoltaic support unit are realized, avoiding the inconvenience and low efficiency of the photovoltaic equipment assembly operation at sea or on water. The device can safely, reliably and efficiently complete the operations of hooking, turning over, lifting and unhooking, ensuring that the deformation of the support unit is small and the photovoltaic components are not damaged within the deformation range. The device can effectively improve the overall hoisting and installation efficiency of the support unit of large-scale offshore photovoltaic projects, and ensure the feasibility and economy of the construction plan of offshore photovoltaic projects. It has the characteristics of height adjustment and strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the U-shaped buckle body connection structure of the utility model;

[0013] Figure 3 It is a schematic side view of the utility model as a whole;

[0014] Explanation of the accompanying reference numerals: 1. lifting truss; 2. U-shaped buckle body; 3. lifting belt; 4. electric hoist; 5. adjusting track; 6. lifting boom; 7. hook; 8. lifting ear; 9. bolt; 15. limit switch. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer and more understandable, the technical solution of the utility model will be further described in detail below with reference to the accompanying drawings.

[0016] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model provides an adaptive offshore photovoltaic steel grid integral turning lifting device, including a lifting truss 1, and mutually parallel adjustment rails 5 are respectively arranged on both sides of the lifting truss 1, and two electric hoists 4 are arranged on the adjustment rails 5. The movable end of the electric hoist 4 is provided with a lifting rod 6, and the lifting rod 6 is used to be connected to the offshore photovoltaic steel grid. A horizontal adjustment unit is provided in the adjustment rail 5 to drive the two electric hoists 4 on the adjustment rail 5 to move closer to or away from each other.

[0017] The hoisting truss 1 can be connected to an external lifting device. When hoisting the offshore photovoltaic steel grid, the position of the electric hoist 4 is first adjusted through the horizontal adjustment unit so that the electric hoist 4 can adapt to the length of the offshore photovoltaic steel grid. Then the electric hoist 4 lowers the lifting boom 6 to connect the offshore photovoltaic steel grid with the lifting boom 6. Then the electric hoist 4 pulls up the lifting boom 6 to lift the offshore photovoltaic steel grid. Then, through the external lifting equipment, the offshore photovoltaic steel grid can be moved to the position where it needs to be installed. After that, when it is necessary to adjust the inclination angle of the offshore photovoltaic steel grid, since two electric hoists 4 are respectively arranged on the adjustment rails 5 on both sides of the hoisting truss 1, the electric hoist 4 on either side of the adjustment rail 5 can be extended or contracted to make the offshore photovoltaic steel grid rotate and change its inclination angle.

[0018] In some examples, the horizontal adjustment unit can be driven by a bidirectional screw, where the power component drives the bidirectional screw to rotate, and the two electric hoists 4 are respectively connected to the two ends of the bidirectional screw through threaded cooperation. In this way, when the bidirectional screw rotates, it can drive the two electric hoists 4 to move closer to or away from each other along the adjustment track 5.

[0019] A plurality of lifting ears 8 are arranged on the top surface of the lifting truss 1 , and the lifting ears 8 can be connected to an external lifting device through a lifting belt 3 . A U-shaped buckle body 2 is connected to the end of the lifting belt 3 , and the U-shaped buckle body 2 is fixedly connected to the lifting ears 8 through bolts 9 .

[0020] When connecting, move the U-shaped buckle body 2 so that the ear 8 is inserted into the U-shaped opening of the U-shaped buckle body 2, and then pass the bolt 9 through the U-shaped buckle body 2 and the ear 8 at the same time, and tighten the other end with a nut.

[0021] A hook 7 is installed at the bottom end of the lifting boom 6 for connecting with the offshore photovoltaic steel grid. The connection method of the hook 7 can facilitate the rotation adjustment of the offshore photovoltaic steel grid on the one hand, and on the other hand, it can also facilitate the disconnection of the offshore photovoltaic steel grid and the lifting boom 6. Preferably, a hook 7 with an anti-unhooking device is used; limit switches 15 are installed at both ends of the adjustment rail 5. The limit switch 15 can stop the horizontal adjustment unit from working when the electric hoist 4 moves to the end of the adjustment rail 5, thereby preventing the electric hoist 4 from slipping out of the adjustment rail 5.

[0022] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An adaptive offshore photovoltaic steel grid overall turning hoisting device, characterized in that: It includes a lifting truss, wherein parallel adjustment tracks are respectively arranged on both sides of the lifting truss, two electric hoists are arranged on the adjustment track, and the movable end of the electric hoist is provided with a lifting rod, and the lifting rod is used to be connected to the offshore photovoltaic steel grid. A horizontal adjustment unit is arranged in the adjustment track to drive the two electric hoists on the adjustment track to move closer to or away from each other.

2. The self-adaptive offshore photovoltaic steel grid integral turning hoisting device according to claim 1 is characterized in that: A plurality of lifting ears are arranged on the top surface of the lifting truss, and the lifting ears can be connected to external lifting equipment through lifting belts.

3. The self-adaptive offshore photovoltaic steel grid integral turning and hoisting device according to claim 2 is characterized in that: The end of the sling is connected with a U-shaped buckle body, and the U-shaped buckle body is fixedly connected to the lifting ear through a bolt.

4. The self-adaptive offshore photovoltaic steel grid integral turning hoisting device according to claim 1 is characterized in that: The bottom end of the lifting boom is provided with a hook for connecting with the offshore photovoltaic steel grid.

5. The self-adaptive offshore photovoltaic steel grid integral turning and hoisting device according to claim 1 is characterized in that: Limit switches are installed at both ends of the adjusting track.

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