CN219211158U - Tool for correcting ovality of thin-wall small-caliber rolled steel pipe - Google Patents

Abstract

The utility model relates to an ovality correction tool for a thin-wall small-caliber rolled steel pipe, which comprises a round base plate, wherein a hexagonal hole and a sliding groove are formed in the round base plate, a hexagonal body is connected to the hexagonal hole, a transmission rod is sleeved in the hexagonal body, one end of the transmission rod is connected with a transmission handle rod, the other end of the transmission rod is connected with a spiral plate, a supporting rod is movably arranged in the sliding groove, a spiral groove is formed in the spiral plate, sliding blocks corresponding to the spiral groove are arranged at the inner ends of the supporting rod, a plurality of supporting arc plates are connected to the outer ends of the supporting rod, and the sliding grooves are uniformly distributed on the round base plate. The technical problem that the misalignment amount is large due to the fact that the ovality of a pipe orifice exceeds the standard when the pipes are assembled in engineering is solved, and the problems that the assembly quality does not meet the quality requirement and the like are solved.

Description

Tool for correcting ovality of thin-wall small-caliber rolled steel pipe

Technical Field

The utility model relates to the technical field of on-site machining and manufacturing, in particular to an ovality correction tool for a thin-wall small-caliber rolled steel pipe.

Background

In the construction engineering of the thermal power plant, a large number of cold air pipelines need to be processed and manufactured on site, and because of factors such as rolling equipment, rolling technology, compression and thermal deformation of plates and the like, when the pipe orifice is misplaced or a reinforcing rib is installed during the butt joint of two unit sections, the ovality of the pipe orifice is not in accordance with the quality requirement due to the deformation of the reinforcing rib, and the butt joint is performed by adopting a method such as welding wedge iron or crow bar, and the wedge iron needs to be removed and polished after the butt joint is finished, so that the labor force and the material consumption are increased.

Disclosure of Invention

The utility model aims to solve the technical problems that the ovality of a thin-wall small-caliber rolled steel pipe is large due to the fact that ovality of a pipe orifice exceeds standard in pipe assembly in engineering, quality of assembly is not in accordance with quality requirements and the like.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a thin wall small-bore roll up steel pipe ellipticity correction instrument, includes the circle basal disc, be provided with hexagonal hole and spout on the circle basal disc, be connected with hexagonal prism on the hexagonal hole, hexagonal prism endotheca has the transfer line, the one end of transfer line is connected with the drive handle pole, and the other end is connected with the spiral dish, the spout internalization is provided with the bracing piece, be provided with the helicla flute on the spiral dish, the inner of bracing piece is provided with the slider corresponding with the helicla flute, and the outer end is connected with the support arc board, the spout is a plurality of, and evenly distributed is on the circle basal disc.

The six-prism body is connected with a rotating rod top bead through a spring, and the transmission rod is provided with a bead supporting groove corresponding to the rotating rod top bead.

The outer end of the round base plate is connected with a round pressing ring through a bolt.

The supporting rod is connected with a supporting arc plate through a jackscrew, and the supporting arc plate is of an arc-shaped structure.

The beneficial effects of the utility model are as follows:

1. through at two unit section alignment positions or strengthening rib axis positions, anticlockwise rotation transmission handle pole drives and supports the outside top mouth of pipe of arc board, after the mouth of pipe reaches standard circle, the clockwise rotation transmission handle pole again withdraws and supports the arc board, can be with two unit section group alignment support for standard circle, the mouth of pipe does not have the wrong limit, need not other auxiliary material, has improved mouth of a river quality and impression quality, the mouth of pipe ovality when the installation strengthening rib has been guaranteed, the mouth of pipe ovality that leads to because of the strengthening rib warp exceeds standard, mouth of pipe ovality quality accords with the acceptance requirement when delivering the installation.

2. Through adopting bolt and jackscrew to connect, easy dismounting is convenient for maintain and change wearing parts.

3. The supporting arc plate is of an arc structure, and can be manufactured into supporting arc plates with different radians according to the diameter of the pipeline in a detachable mode; the length of the arc plate can be increased to meet the ovality control requirement of the thinner-wall pipeline.

4. There are two through the effect of circle clamping ring: 1. assembling and disassembling functions: after a transmission rod, a support rod and a spiral disc are sequentially installed in the circular base disc, the circular base disc is fixed by a circular ring 6 and is integrated with the circular base disc; 2. limiting function: after the circular ring is installed, a circular groove which rotates with the spiral disc is formed on the circular base disc, and the axial movement of the spiral disc is limited.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a rear view of the present utility model;

FIG. 5 is a schematic view of the structure of a circular base plate;

FIG. 6 is a schematic cross-sectional view of the structure B-B of FIG. 5;

FIG. 7 is a schematic cross-sectional view of F-F in FIG. 5;

FIG. 8 is a schematic diagram of the structure of a drive rod;

FIG. 9 is a schematic view of the connection of the spiral disc to the support rod;

FIG. 10 is a schematic cross-sectional view of the structure G-G of FIG. 9;

FIG. 11 is a schematic view of a structure of a support bar;

the figure shows: 1-a transmission handle bar; 2-a transmission rod; 3-a round base plate; 4-supporting rods; 5-spiral disc; 6-a circular ring; 7-supporting an arc plate; 8-rotating rod top beads; 9-a bead ejection groove; 10-jackscrews; 31-hexagonal holes; 32-sliding grooves; 33-hexagonal prism; 41-a slider; 51-helical groove.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

As shown in fig. 1 and 11, an ovality correction tool for a thin-wall small-caliber rolled steel pipe comprises a round base plate 3, wherein a hexagonal hole 31 and a sliding groove 32 are formed in the round base plate 3, a hexagonal body 33 is connected to the hexagonal hole 31, a transmission rod 2 is sleeved in the hexagonal body 33, one end of the transmission rod 2 is connected with a transmission handle rod 1, the other end of the transmission rod is connected with a spiral plate 5, a supporting rod 4 is movably arranged in the sliding groove 32, a spiral groove 51 is formed in the spiral plate 5, a sliding block 41 corresponding to the spiral groove 51 is arranged at the inner end of the supporting rod 4, a supporting arc plate 7 is connected to the outer end of the supporting rod, and the sliding grooves 32 are multiple and are uniformly distributed on the round base plate 3.

The hexagonal prism 33 is connected with a rotating rod top bead 8 through a spring, and the transmission rod 2 is provided with a bead supporting groove 9 corresponding to the rotating rod top bead 8.

The outer end of the round base plate 3 is connected with a round pressing ring 6 through a bolt.

The supporting rod 4 is connected with the supporting arc plate 7 through a jackscrew 10.

Through at two unit section alignment positions or reinforcement rib axis positions, anticlockwise rotation transmission handle pole 1 drives and supports arc board 7 outside top mouth of pipe, after the mouth of pipe reaches standard circle, again clockwise rotation transmission handle pole 1, withdraws and supports arc board 7, can be with two unit section group alignment support for standard circle, the mouth of pipe does not have the wrong limit, need not other auxiliary material, has improved alignment quality and impression quality, the mouth of pipe ovality when the installation reinforcement rib has been guaranteed, has eliminated the mouth of pipe ovality that leads to because of the reinforcement rib warp exceeds standard, mouth of pipe ovality quality accords with the acceptance requirement when delivering the installation.

By adopting the connection of the bolt and the jackscrew 10, the assembly and the disassembly are convenient, and the maintenance and the replacement of vulnerable parts are convenient.

The supporting arc plate 7 is of an arc structure, and the supporting arc plate 7 with different radians can be manufactured according to the diameter of the pipeline in a detachable mode; the length of the arc plate can be increased to meet the ovality control requirement of the thinner-wall pipeline.

There are two through the effect of circle clamping ring: 1. assembling and disassembling functions: after a transmission rod 2, a support rod 4 and a spiral disc 5 are sequentially arranged in a circular base disc 3, the transmission rod, the support rod and the spiral disc are fixed by a circular ring 6 and are integrated with the circular base disc 3; 2. limiting function: after the circular ring 6 is installed, a circular groove for rotating the spiral disc 5 is formed with the circular base disc 3, and the axial movement of the spiral disc 5 is limited.

When the tool is used, the tool is placed at the aligning position of two unit sections or the axis position of the reinforcing rib, the transmission handle rod 1 is rotated anticlockwise, the transmission handle rod 1 drives the spiral disc 5 to rotate through the transmission rod 2, the spiral groove 51 on the spiral disc 5 rotates along with the spiral disc 5, the spiral groove 51 enables the support rod 4 to move outwards along the sliding groove 32 through pushing the sliding block 41, namely the support rod 4 pushes the support arc plate 7 to eject outwards, after the support pipe orifice of the support arc plate 7 reaches a standard circle, the transmission rod 2 is pulled outwards, the hexagonal prism 33 is embedded into the hexagonal hole 31 on the circular base disc 3, the transmission rod 2 is locked to rotate, after the aligning of the two unit sections is completed, the transmission rod 2 is pushed inwards, the hexagonal prism 33 is separated from the hexagonal hole 31, the transmission handle rod 1 is rotated clockwise, the transmission rod 2 and the spiral disc 5 also rotate clockwise, the support rod 4 is enabled to move inwards along the sliding groove 32 through pulling the sliding block 41, and the support arc plate 7 is driven to retract into the circular base disc 3 through pulling the sliding block 41, and the support arc plate 7 is driven to retract into the support rod 3.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (4)

1. The tool for correcting ovality of the thin-wall small-caliber rolled steel pipe comprises a round base plate (3) and is characterized in that the tool comprises a base plate and a base plate; be provided with hexagonal hole (31) and spout (32) on circle base plate (3), be connected with hexagonal prism (33) on hexagonal hole (31), hexagonal prism (33) endotheca has transfer line (2), the one end of transfer line (2) is connected with transfer line handle pole (1), and the other end is connected with spiral dish (5), spout (32) internalization is provided with bracing piece (4), be provided with helicla flute (51) on spiral dish (5), the inner of bracing piece (4) is provided with slider (41) corresponding with helicla flute (51), and the outer end is connected with supports arc board (7), spout (32) are a plurality of, and evenly distributed is on circle base plate (3).

2. A tool for correcting ovality of a thin-walled small-caliber rolled steel pipe as claimed in claim 1, wherein: the six-prism body (33) is connected with a rotating rod top bead (8) through a spring, and the transmission rod (2) is provided with a top bead groove (9) corresponding to the rotating rod top bead (8).

3. A tool for correcting ovality of a thin-walled small-caliber rolled steel pipe as claimed in claim 1, wherein: the outer end of the round base plate (3) is connected with a round pressing ring (6) through a bolt.

4. A tool for correcting ovality of a thin-walled small-caliber rolled steel pipe as claimed in claim 1, wherein: the supporting rod (4) is connected with the supporting arc plate (7) through a jackscrew (10).

Images