Positioning device for large tower

Abstract

The utility model relates to the technical field of tower positioning, in particular to a positioning device for a large tower. Comprising two lifting mechanisms and a tower pushing mechanism arranged between the two lifting mechanisms, and the tower pushing mechanism is used for pushing a tower to a designated position; the tower pushing mechanism comprises a sliding rail arranged between the two lifting mechanisms and a sliding trolley arranged on the sliding rail, a clamping guide ring is arranged on the sliding trolley, a transmission screw is arranged in the guide ring in a sleeved mode, and the transmission screw is in threaded connection with the clamping guide ring. The device is high in universality, simple in structure and operation and low in manufacturing cost, when the device is used for installing a large tower, the efficiency of installing and positioning the tower is greatly improved, working hours and crane equipment are saved, time cost and labor cost are reduced, and meanwhile in the moving process of the tower, the risk that a tower body collides with an accessory deck, a pipe gallery and the like is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tower positioning, in particular to a positioning device for a large tower. Background Technique

[0002] In the traditional tower positioning process, before the arrival of a large tower, the equipment manufacturer marks scales such as zero degree and 270 degrees on the tower in advance. When the tower is to be installed, the tower installation team draws scale lines on the steel structure deck. The tower is hoisted near the installation position by a crane, and construction workers pull the sliding ropes pre - hung on the tower, thereby driving the movement of the tower and adjusting its position. This traditional tower positioning method relies on construction workers to manually move the sliding ropes on the tower to move the tower. The positioning accuracy of the tower is low, the physical strength of construction workers is consumed greatly, and the time cost and labor cost are extremely high; moreover, during the movement of the tower, there is a risk of the tower body colliding with accessory decks and pipe galleries. Therefore, there is an urgent need for a safer and more efficient installation method for precise positioning and adjustment of large offshore towers, so as to improve the on - site construction efficiency and reduce the labor input cost. Summary of the Invention

[0003] In view of the above situation, to overcome the defects of the prior art, the utility model provides a positioning device for a large tower to solve the problems involved in the background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: A positioning device for a large tower includes two lifting mechanisms and a tower pushing mechanism arranged between the two lifting mechanisms. The tower pushing mechanism is used to push the tower to a designated position;

[0005] The tower pushing mechanism includes a sliding track arranged between the two lifting mechanisms, a sliding trolley arranged on the sliding track, a clamping guide ring arranged on the sliding trolley, and a transmission screw rod sleeved in the guide ring. The transmission screw rod is threadedly connected with the clamping guide ring.

[0006] Further, the lifting mechanism includes a lifting seat and a lifting column arranged on the lifting seat. The sliding track is arranged between the two lifting columns.

[0007] Further, a number of bolt holes are arranged on the lifting column, fixing seats are arranged on both sides of the sliding track, bolt through - holes are arranged on the fixing seats, and the lifting column and the fixing seat are fixedly connected by bolts.

[0008] Further, a protective sleeve is arranged at the end of the transmission screw rod, and the protective sleeve is made of rubber or polytetrafluoroethylene.

[0009] Further, a push block is provided at the end of the transmission screw. The push block is rotatably connected to the transmission screw, and a protective sleeve made of rubber or polytetrafluoroethylene is provided at the end of the push block.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] The present utility model has strong versatility, simple structure and operation, and low cost. When used for the installation of large tower vessels, it greatly improves the efficiency of tower vessel installation and positioning, saves man-hours and crane equipment, reduces time costs and labor costs. At the same time, during the movement of the tower vessel, the risk of the tower vessel body colliding with accessory decks and pipe galleries is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of Embodiment 1 of the present utility model;

[0013] Figure 2 is a structural schematic diagram of the sliding trolley of Embodiment 1 of the present utility model;

[0014] Figure 3 is a structural schematic diagram of the use of Embodiment 1 of the present utility model;

[0015] Figure 4 is a structural schematic diagram of the sliding trolley of Embodiment 2 of the present utility model;

[0016] Figure 5 is a schematic diagram of the installation position of Embodiment 3 of the present utility model

[0017] In the figure:

[0018] lifting column 1, sliding track 2, sliding trolley 3, clamping guide ring 4, transmission screw 5, tower vessel 6, lifting seat 7, fixed seat 8, tower vessel bottom plate 9, push block 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings 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 of 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.

[0020] Embodiment 1:

[0021] As Figures 1 - 3 shown, a positioning device for a large tower vessel includes two lifting mechanisms and a tower vessel pushing mechanism disposed between the two lifting mechanisms. The tower vessel pushing mechanism is used to push the tower vessel to a designated position;

[0022] The tower pushing mechanism includes a sliding track 2 disposed between two lifting mechanisms, a sliding trolley 3 disposed on the sliding track 2, a clamping guide ring 4 provided on the sliding trolley 3, and an M30 driving screw 5 sleeved inside the guide ring 4. The driving screw 5 is threadedly connected to the clamping guide ring 4. The positioning of the tower 6 is adjusted by adjusting the position of the driving screw 5 in the clamping guide ring 4. A protective sleeve is provided at the end of the driving screw 5, and the protective sleeve is made of rubber or polytetrafluoroethylene to prevent deformation of the surface of the tower 6. The sliding track 2 is made of channel steel, and the surface should be smooth to facilitate the sliding of the sliding trolley 3.

[0023] The lifting mechanism includes a lifting seat 7 and a lifting column 1 disposed on the lifting seat 7. The sliding track 2 is disposed between two lifting columns 1. A plurality of bolt holes are provided on the lifting column 1, fixed seats 8 are provided on both sides of the sliding track 2, bolt through holes are provided on the fixed seats 8, and the lifting column 1 and the fixed seats 8 are fixedly connected by bolts. The lifting seat 7 is made of carbon steel. The reason for using carbon steel is that the lifting seat needs to be welded to the steel structure deck. Since the material of the steel structure deck is carbon steel, when carbon steel comes into contact with stainless steel, the iron ions of carbon steel will contaminate the stainless steel, and electrochemical corrosion will occur due to the different electric potentials of the two. Moreover, since they are welded together, a G10 material isolation pad cannot be used. Therefore, carbon steel needs to be selected.

[0024] When installing the tower 6, the tower 6 needs to be moved directly above the tower bottom plate 9. First, a crawler crane with different load-bearing capacities is selected according to the weight of the tower 6, and the crawler crane is used to hoist the tower 6 to the installation position. The tower 6 is suspended 5 - 10 mm above the tower bottom plate. Construction workers install the positioning device on one side where the tower 6 is removed from the tower bottom plate 9. Before installation, construction workers place wooden blocks between the positioning device and the tower 6 to prevent the surface of the tower 6 from deforming due to contact with the tooling.

[0025] During installation, the lifting seat 7 is welded to the steel structure deck. To ensure the welding strength, full welding is used. All welding materials must be E70XX or have a minimum tensile strength of 70 Ksi, and all welds must be 100% MPI. Appropriate bolt holes at an appropriate height on the lifting column 1 are selected according to the position of the tower, and the lifting column 1 and the sliding track 2 are bolt-connected.

[0026] When adjusting the position of the tower 6, the sliding trolley 3 is moved to the position closest to the tower 6, and the driving screw 5 is rotated to change the position of the driving screw 5 in the clamping guide ring 4, causing the tower 6 to move radially, and then pushing the tower 6 directly above the tower bottom plate 9 to achieve positioning.

[0027] When installing large-scale tower equipment, using the positioning device of the present application can achieve the purpose of precise positioning and adjustment, greatly improve efficiency, save time, reduce construction costs, and has strong general applicability of the tooling, which can save about 10% of the time cost and about 5% of the labor cost.

[0028] Embodiment 2:

[0029] The same parts as those in Embodiment 1 will not be described again. The differences are as follows:

[0030] As Figure 4 shown, a push block 10 is provided at the end of the transmission screw rod 5. The push block 10 is rotatably connected to the transmission screw rod 5. A protective sleeve made of rubber or polytetrafluoroethylene is provided at the end of the push block 10. The push block is used to increase the contact area between the transmission screw rod 5 and the tower equipment 6, facilitating pushing.

[0031] Embodiment 3:

[0032] The same parts as those in Embodiment 1 will not be described again. The differences are as follows:

[0033] As Figure 5 shown,

[0034] After installing a positioning device, weld another transmission screw rod 5 at the 90-degree clockwise position according to the same steps to ensure that the tower equipment 6 can be adjusted in multiple directions. Move the two transmission screw rods on the left and right and front and back sides of the tower equipment 6 to achieve the rapid positioning of the tower equipment 6. Figure 5 It is a schematic diagram of the installation position.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for a large tower vessel, characterized in that: It includes two lifting mechanisms and a tower vessel pushing mechanism disposed between the two lifting mechanisms, and the tower vessel pushing mechanism is used to push the tower vessel to a designated position; The tower vessel pushing mechanism includes a sliding track disposed between the two lifting mechanisms, a sliding trolley disposed on the sliding track, a clamping guide ring is provided on the sliding trolley, a transmission screw rod is sleeved inside the clamping guide ring, and the transmission screw rod is in threaded connection with the clamping guide ring.

2. The positioning device for large tower equipment according to claim 1, characterized in that: The lifting mechanism includes a lifting seat and a lifting column disposed on the lifting seat, and the sliding track is disposed between the two lifting columns.

3. The positioning device for a large tower vessel according to claim 2, characterized in that: A plurality of bolt holes are provided on the lifting column, fixing seats are provided on both sides of the sliding track, bolt through holes are provided on the fixing seats, and the lifting column and the fixing seats are fixedly connected by bolts.

4. The positioning device for large-scale tower equipment according to claim 1, characterized in that: A protective sleeve is provided at the end of the transmission screw rod, and the protective sleeve is made of rubber or polytetrafluoroethylene.

5. The positioning device for a large tower vessel according to claim 1, wherein: A push block is provided at the end of the transmission screw rod, the push block is rotatably connected to the transmission screw rod, and a protective sleeve made of rubber or polytetrafluoroethylene is provided at the end of the push block.

6. The positioning device for a large tower vessel according to claim 2, characterized in that: The lifting seat is made of carbon steel.

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