CN211680760U - Welding aligning device for long-distance pipeline - Google Patents

Abstract

The utility model provides a long distance pipeline welding is to mouthful device. Relates to the technical field of oil field gathering and transportation. Dovetail grooves are symmetrically arranged on the inner sides of the transverse brackets, two vertical brackets which are oppositely arranged are connected in a clearance fit manner in the dovetail grooves, a guide rail is connected with a rack in a clearance fit manner in each vertical bracket, the rack is connected with a gear, a shaft of the gear is connected with a hand wheel, a hook is arranged at the lower part of the rack, and the hook is inserted into a hole of the positioning block; the end plate of the transverse bracket is provided with a bolt hole threaded connection bolt. The utility model discloses following beneficial effect has: the device pulls out the locating piece or presses in the locating piece through rack and pinion transmission, adjusts the mouth of pipe of the deformation of major diameter gathering pipeline and recovers to circular and two sections mouth of pipe parallel and level, simultaneously through the orificial welding seam width of bolt adjustment, can realize the mouth of pipe butt joint, guarantees welding quality, and the device can select different quantity according to the size of pipeline diameter and carry out the alignment, and the pipeline welding of adaptable different diameters is to the mouth, and application scope is extensive, easy operation, and is to the mouth high quality.

Description

Welding aligning device for long-distance pipeline

The technical field is as follows:

the utility model belongs to the technical field of the defeated technique of oil field collection and specifically relates to a long defeated pipeline welding is to mouthful device.

Background art:

with the progress of science and technology, the petroleum and natural gas pipeline transportation technology is rapidly developed towards the direction of high pressure and large caliber, the maximum design nominal diameter of the domestic oil and gas pipeline at present reaches 1422mm, meanwhile, a plurality of large caliber (the inner diameter is larger than 1000mm) tubular structures are involved in other equipment manufacturing and engineering construction, when the large caliber pipeline is centered and welded, a mouth aligner is required to be used for assisting centering, the existing external mouth aligner is mostly manufactured by construction units, the working is rough and heavy, the manufacturing cost is high, the mouth aligning precision is low, the structural strength of the product is low, the adjusting precision is low, the mouth aligning quality is influenced, the welding quality problem is possibly caused, and therefore the mouth aligning requirement on a construction site can not be met.

The utility model has the following contents:

in order to solve the problem, the utility model provides a long-distance pipeline welding is to mouthful device.

The technical scheme of the utility model is that: the welding aligning device for the long-distance pipeline comprises transverse brackets, dovetail grooves are symmetrically arranged on the inner sides of the transverse brackets, two vertical brackets which are oppositely arranged are connected in a clearance fit mode in the dovetail grooves, a guide rail is arranged in each vertical bracket and is connected with a rack in a clearance fit mode, the rack is in transmission connection and matching with a gear through a gear and a rack, the gear is connected with a hand wheel through a shaft, a hook is arranged on the lower portion of the rack, and the hook is inserted into a hole of a;

the both sides end of horizontal bracket is connected with the end plate, and every end plate is opened has bolt hole threaded connection bolt, and the hexagon head of bolt is towards the outside, and the screw post of bolt supports the lateral surface of erecting the bracket.

The utility model discloses following beneficial effect has: the device pulls out the locating piece or presses in the locating piece through rack and pinion transmission, adjusts the mouth of pipe of the deformation of major diameter gathering pipeline and recovers to circular and two sections mouth of pipe parallel and level, simultaneously through the orificial welding seam width of bolt adjustment, can realize the mouth of pipe butt joint, guarantees welding quality, and the device can select different quantity according to the size of pipeline diameter and carry out the alignment, and the pipeline welding of adaptable different diameters is to the mouth, and application scope is extensive, easy operation, and is to the mouth high quality.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view a-a of fig. 1.

In the figure, 1-a transverse bracket, 2-a vertical bracket, 3-an end plate, 4-a bolt, 5-a rack, 6-a positioning block, 7-a gear, 8-a hand wheel, 9-a dovetail groove, 10-a guide rail and 11-a hook.

The specific implementation mode is as follows:

the present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, the welding aligning device for the long-distance pipeline comprises a transverse bracket 1, dovetail grooves 9 are symmetrically arranged on the inner side of the transverse bracket 1, two vertical brackets 2 which are oppositely arranged are connected in a clearance fit mode in the dovetail grooves 9, a guide rail 10 is arranged in each vertical bracket 2 and is connected with a rack 5 in a clearance fit mode, the racks 5 and a gear 7 are in transmission connection and match through the gear and the rack, a shaft of the gear 7 is connected with a hand wheel 8, a hook 11 is arranged on the lower portion of the rack 5, and the hook 11 is inserted into;

both sides end connection of horizontal bracket 1 has end plate 3, and every end plate 3 is opened has bolt hole threaded connection bolt 4, and the hexagon head of bolt 4 is towards the outside, and the screw post of bolt 4 supports the lateral surface of erecting bracket 2.

The welding of major diameter long-distance pipeline, because the pipeline diameter is big, the mouth of pipe of pipeline is not necessarily circular, and the welding is to the mouth and need to be aligned two sections mouths of pipe, the pipe surface to the parallel and level, keeps the welding seam of pipe diameter full scale equal simultaneously, just can guarantee welding quality.

When in actual use, a plurality of long-distance pipeline welding aligning devices are arranged along the circumference at the aligning position of two large-diameter pipelines, two positioning blocks 6 are welded at two sides of two pipe orifices, hooks 11 of racks 5 are inserted into holes of the positioning blocks 6, the two racks 5 are enabled to move up and down in a guide rail 10 through an adjusting hand wheel 8, because the pipe orifices of the pipes are not in a theoretical circle shape, some places need to be pressed inwards, some places need to be pulled outwards, the outer circle surfaces of the two sections of pipes are adjusted to be aligned, meanwhile, bolts 4 are adjusted to be propped against vertical brackets 2, the two vertical brackets 2 are pushed inwards, the hooks 11 of the racks 5 push the two positioning blocks 6 to be close to each other, a gap between the two sections of pipes is moved, after welding seams between the pipe orifices of the two sections of pipes are equal and meet design requirements, the outer circle surfaces of the two sections of pipes are aligned, electric welding is carried out, and cutting off the welding line between the positioning block 6 and the pipeline, and ending the alignment.

The device pulls out the locating piece or presses in the locating piece through rack and pinion transmission, adjusts the mouth of pipe of the deformation of major diameter gathering pipeline and recovers to circular and two sections mouth of pipe parallel and level, simultaneously through the orificial welding seam width of bolt adjustment, can realize the mouth of pipe butt joint, guarantees welding quality, and the device can select different quantity according to the size of pipeline diameter and carry out the alignment, and the pipeline welding of adaptable different diameters is to the mouth, and application scope is extensive, easy operation, and is to the mouth high quality.

Claims (1)

1. The utility model provides a long defeated pipeline welding is to mouthful device, includes horizontal bracket (1), its characterized in that: dovetail grooves (9) are symmetrically arranged on the inner side of the transverse bracket (1), two vertical brackets (2) which are oppositely arranged are connected in a clearance fit mode in the dovetail grooves (9), a guide rail (10) is connected with a rack (5) in a clearance fit mode in each vertical bracket (2), the rack (5) is in transmission connection and matching with a gear (7) through a gear and a rack, a shaft of the gear (7) is connected with a hand wheel (8), a hook (11) is arranged on the lower portion of the rack (5), and the hook (11) is inserted into a hole of the positioning block (6);

the both sides end of horizontal bracket (1) is connected with end plate (3), and every end plate (3) are opened has bolt hole threaded connection bolt (4), and the hexagon head of bolt (4) is towards the outside, and the screw post of bolt (4) supports the lateral surface of erecting bracket (2).

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