Template type rotating tire for building large cylindrical structure

Abstract

A formwork type rotating tire for building a large cylindrical structure comprises two sets of stand columns, an arc-shaped formwork is fixed between the stand columns, a shell ring is placed on the arc-shaped formwork, the radian of the arc-shaped formwork is matched with the outer radian of the shell ring, a first notch is formed in the center of the interior of the arc-shaped formwork, and second notches are formed in the two sides of the arc-shaped formwork. A roller is fixed at the second notch, the roller is a chain type roller or a crawler type roller, the roller is horizontally arranged in the second notch, a supporting toggle plate is arranged below the roller, the supporting toggle plate is perpendicular to the arc-shaped template, and the roller is in contact with the shell ring. An adjusting bolt is arranged below the roller, a nut is fixed on the arc-shaped template, and the adjusting bolt penetrates through the nut and abuts against the lower portion of the roller; two or more sets of template type rotating tires can be used at the same time. The structure is simple, installation and operation are easy, the implementation effect is stable, the shape maintaining precision of the large cylindrical structure in the assembling period is effectively improved, and assembling and welding convenience, safety and construction efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the field of ship and marine engineering construction and design, and specifically relates to a template type tire for building a large cylindrical structure. Background Art

[0002] When a large cylindrical structure with multiple cylinder sections is constructed, it is placed on a template to assemble and weld the busbar seams and annular seams of the cylinder. Usually, the busbar seams of multiple cylinder sections are staggered at a certain angle. For the convenience of welding, most of the busbar seams are selected to be in a horizontal welding position, while the assembly and welding of the annular seams must be carried out around the annular seams, which is inefficient, difficult to weld, and difficult to ensure quality. Figure 1 . Summary of the invention

[0003] In order to solve the above problems, the present invention provides a template type tire for large cylindrical structure construction, aiming to achieve the purpose of changing the position of the busbar seam and the annular seam, and improving the welding quality and efficiency of the busbar seam and the annular seam. The technical solution adopted is:

[0004] A template-type rotating tire for building a large cylindrical structure has two groups of columns, an arc-shaped template is fixed between the columns, a cylinder section is placed on the arc-shaped template, the curvature of the arc-shaped template is matched with the outer curvature of the cylinder section, a first notch is arranged at the center of the arc-shaped template, and second notches are arranged on both sides, rollers are fixed at the second notches, the rollers are chain rollers or crawler rollers, the rollers lie horizontally in the second notches, a supporting toggle plate is arranged below the roller, the supporting toggle plate is designed to be perpendicular to the arc-shaped template, and the rollers are in contact with the cylinder section.

[0005] An adjusting bolt is arranged under the roller, a nut is fixed on the arc-shaped template, and the adjusting bolt passes through the nut and is pressed under the roller.

[0006] Template tire rotation can be used in groups of two or more at the same time.

[0007] The above-mentioned template type tire for building a large cylindrical structure is further made of square channel steel.

[0008] The above-mentioned template type roller for building a large cylindrical structure, further, the roller can also be a crawler roller.

[0009] The above-mentioned template type tire roller for constructing a large cylindrical structure, further, the length and depth of the second notch correspond to the length and height of the roller.

[0010] The above-mentioned template type tire roller for building a large cylindrical structure further has four adjusting bolts, which are respectively located at the four corners of the roller.

[0011] The above-mentioned template type tire for building a large cylindrical structure further comprises two supporting brackets, which are respectively located on both sides of the arc-shaped template.

[0012] In view of the fact that the existing template tires of large cylindrical structures cannot realize the function of rotating the cylinder section, two chain roller trolleys are installed on the template of the template tire. After the cylinder section is placed on the arc template, the two rollers below the cylinder section are lifted up a certain distance by adjusting the bolts, so that the cylinder section can be rotated on the tire, and the busbar seam is turned to the position of the first notch of the template and then dropped, which is convenient for assembly and welding. After each cylinder section is welded in this way, the adjacent cylinder sections are rotated to stagger the busbar seams at a certain angle, and then the annular seam of the cylinder section is assembled and welded.

[0013] The present invention adopts a template tire and a rotating tire integrated device, which effectively improves the shape-keeping accuracy of large cylindrical structures during assembly, greatly improves the convenience, safety and construction efficiency of assembly and welding. The device has a simple structure, low price, easy installation and operation, and stable and reliable implementation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of multiple sets of template-type rotating tires supporting multiple sections of cylinder sections;

[0015] Figure 2 yes Figure 1 Schematic diagram of the middle B perspective;

[0016] Figure 3 It is a schematic diagram of the state of the template tire and the cylinder section when the roller is jacked up;

[0017] Figure 4 yes Figure 2 The middle circle is an enlarged schematic diagram;

[0018] Figure 5 yes Figure 4 Schematic diagram of medium AA viewing angle;

[0019] Among them, 1-cylinder section, 2-busbar seam, 3-annular seam, 4-arc formwork, 5-column, 6-roller, 7-support bracket, 8-adjusting bolt, 9-first notch, 10-second notch, 11-nut. DETAILED DESCRIPTION

[0020] The present invention will be further described in conjunction with the accompanying drawings.

[0021] like Figure 1 , 2As shown, a template type rotating tire for building a large cylindrical structure has two groups of columns 5, with an arc template 4 fixed between the columns, a cylinder segment 1 is placed on the arc template, the curvature of the arc template is adapted to the outer curvature of the cylinder segment, and a first notch 9 is provided at the center of the interior of the arc template for use in applying a welding pad before welding the busbar seam.

[0022] The arc-shaped template is provided with second notches 10 on both sides thereof, and rollers 6 are fixed at the second notches, and the rollers are chain rollers or crawler rollers, such as Figure 4 , 5 As shown, the roller lies horizontally in the second notch, a support bracket 7 is arranged below the roller, the support bracket is designed vertically with the arc template, and the roller contacts the cylinder section. An adjusting bolt 8 is arranged below the roller, and a nut 11 is fixed on the arc template, and the adjusting bolt passes through the nut and is pressed below the roller.

[0023] After the tire is installed on a single drum section, tighten the adjusting bolt and lift the roller upward. Figure 3 As shown, until there is a certain gap between the cylinder segment and the template and the busbar seam 2 can be rotated to the first notch 9 of the template center pad, it is convenient for assembly and welding; during assembly, in order to maintain the shape of the cylinder segment and the stability during welding, the adjusting bolts are gradually loosened so that the cylinder segment is completely supported by the template. This welding position is equivalent to a flat welding position, which is easier to ensure quality and improve efficiency; after the welding of the cylinder segment is completed, the busbar seam of the same cylinder segment is welded in the same way.

[0024] After the welding of each cylinder segment is completed, the adjusting bolts should be tightened again to make each cylinder segment rotatable, and the busbar seams can be staggered 90 to 180 degrees as required before assembly and welding of the annular seams. In this state, the assemblers and welders can use one workstation for construction, avoiding the problems of low efficiency, poor quality and safety caused by construction at multiple workstations.

[0025] When assembling and welding the annular seams 3 of adjacent cylinder segments, the adjusting bolts under the rollers on the arc-shaped template can be tightened until there is a certain gap between the two adjacent cylinder segments and the template and they can rotate. The assembler can then select a suitable workstation for assembly, and the welder can choose to weld at the lower center of the cylinder. Welding the annular seam at this position is equivalent to a flat welding position. After welding for a section, the cylinder segment is rotated to ensure that welding is always performed at this position, which makes it easier to ensure the quality of the annular seam and improve efficiency.

Claims

1. A template type tire for building a large cylindrical structure, characterized in that: The template-type tire rotating device comprises two groups of columns (5), an arc-shaped template (4) is fixed between the columns, a cylinder section (1) is placed on the arc-shaped template, the curvature of the arc-shaped template is adapted to the outer curvature of the cylinder section, a first notch (9) is arranged at the center of the arc-shaped template, and second notches (10) are arranged on both sides, a roller (6) is fixed at the second notch, the roller is a chain roller or a crawler roller, the roller lies horizontally in the second notch, a supporting toggle plate (7) is arranged below the roller, the supporting toggle plate is arranged vertically with the arc-shaped template, and the roller contacts the cylinder section; An adjusting bolt (8) is arranged below the roller, a nut (11) is fixed on the arc-shaped template, and the adjusting bolt passes through the nut and is pressed below the roller; Template tire rotation can be used in groups of two or more at the same time.

2. The template type tire for building a large cylindrical structure according to claim 1 is characterized in that: The columns are made of square channel steel.

3. The template type tire for building a large cylindrical structure according to claim 1 is characterized in that: The length and depth of the second notch correspond to the length and height of the roller.

4. The template type tire for building a large cylindrical structure according to claim 1 is characterized in that: There are four adjusting bolts, located at the four corners of the roller.

5. The template type tire for building a large cylindrical structure according to claim 1 is characterized in that: There are two supporting brackets, which are respectively located on both sides of the arc-shaped template.

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