CN212683007U - Large-diameter pipeline transferring and butt welding positioning mechanism - Google Patents
Large-diameter pipeline transferring and butt welding positioning mechanism Download PDFInfo
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- CN212683007U CN212683007U CN202021311399.2U CN202021311399U CN212683007U CN 212683007 U CN212683007 U CN 212683007U CN 202021311399 U CN202021311399 U CN 202021311399U CN 212683007 U CN212683007 U CN 212683007U
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Abstract
The invention discloses a large-caliber pipeline transferring and aligning welding positioning mechanism, which solves the problem of how to finish transferring and accurate welding aligning of a large-caliber pipeline in a limited space. Each pipeline is lifted and pulled by two narrow trolleys and conveyed to the pipeline installation position of the existing workshop, so that the defects that the existing workshop cannot be hoisted and a conveying channel is limited are overcome, and meanwhile, an arc-shaped supporting plate is arranged on each trolley, so that the two pipelines which are butt-welded are positioned in the arc-shaped supporting plate; the invention relates to a welding alignment device for two trolleys, which is characterized in that an outer side vertical surface of an arc-shaped supporting plate, an outer side vertical surface of a trolley body and oppositely welded pipe orifices are arranged and are positioned on the same vertical surface, and the outer side vertical surface of the rear trolley of a front trolley group and the outer side vertical surface of the front trolley of the rear trolley group are abutted to finish accurate butt joint alignment of the two welded pipe orifices.
Description
Technical Field
The invention relates to a large-diameter pipeline transferring and butt welding positioning mechanism, in particular to a transferring and butt welding positioning mechanism and a positioning method for a large-diameter welded pipeline in a limited space of an existing workshop.
Background
With the development of the power industry, small units in a power plant workshop are gradually replaced by large units, and after the small units are replaced by the large units, pipeline replacement construction needs to be carried out in the existing workshop; in addition, because the requirement on the butt welding precision of the two large-caliber pipelines is high, how to complete the accurate butt joint of the two large-caliber pipelines is also a technical problem to be solved on site.
Disclosure of Invention
The invention provides a large-caliber pipeline transferring and aligning welding positioning mechanism and a positioning method, which solve the technical problem of how to finish transferring and accurate welding and aligning of a large-caliber pipeline in a limited space.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: each pipeline is lifted and pulled by two narrow trolleys and conveyed to the pipeline installation position of the existing workshop, so that the defects that the existing workshop cannot be hoisted and a conveying channel is limited are overcome, and meanwhile, an arc-shaped supporting plate is arranged on each trolley, so that the two pipelines which are butt-welded are positioned in the arc-shaped supporting plate; the method comprises the steps of arranging an arc-shaped supporting plate outer side vertical surface, a trolley body outer side vertical surface and oppositely welded pipe orifices, wherein the arc-shaped supporting plate outer side vertical surface, the trolley body outer side vertical surface and the oppositely welded pipe orifices are positioned on the same vertical surface, and the two welded pipe orifices are accurately butted and aligned through the abutting joint of the trolley body outer side vertical surface of a rear trolley of a front trolley group and the trolley body outer side vertical surface of a rear trolley group; the narrow-body trolley has the dual functions of conveying pipelines and butting pipe orifices.
A large-diameter pipeline transferring and butt welding positioning mechanism comprises a first narrow flat car, a second narrow flat car, a third narrow flat car, a fourth narrow flat car, a butt welding front pipeline, a butt welding rear pipeline, a car body front end arc top surface supporting plate and a car body rear end arc top surface supporting plate, wherein the structure of the first narrow flat car, the structure of the second narrow flat car, the structure of the third narrow flat car and the structure of the fourth narrow flat car are completely the same, the structure of the car body front end arc top surface supporting plate is completely the same as that of the car body rear end arc top surface supporting plate, a car body front end arc top surface supporting plate is arranged at the car body front end of each narrow flat car, a car body rear end arc top surface supporting plate is arranged at the car body rear end of each narrow flat car, a portal frame is fixedly arranged at the car body center of each narrow flat car, a hand-pulling chain block is arranged on the portal frame, a butt welding front pipeline is arranged between the first narrow flat trolley and the second narrow flat trolley, a butt welding rear pipeline is arranged between the third narrow flat trolley and the fourth narrow flat trolley, and a butt welding rear pipe orifice of the butt welding front pipeline, a rear end side vertical surface of a vehicle body rear end arc top surface supporting plate on the second narrow flat trolley and a rear end side vertical surface of a vehicle body plate of the second narrow flat trolley are arranged in the same side vertical surface; the butt welding front pipe orifice of the butt welding rear pipeline, the front side vertical surface of the vehicle body front end arc top surface supporting plate on the third narrow flat trolley and the front side vertical surface of the vehicle body plate of the third narrow flat trolley are arranged in the same side vertical surface; the rear end side elevation of the body plate of the second narrow flat car is abutted to the front end side elevation of the body plate of the third narrow flat car.
The hand-pulling chain blocks on each narrow flat plate trolley are connected with the butt welding pipeline on the narrow flat plate trolley through hoisting ropes, and the four hand-pulling chain blocks are used for lifting the butt welding pipeline and the butt welding pipeline to the same height and then performing butt welding.
A method for positioning a large-diameter pipeline transferring and butt welding positioning mechanism comprises the following steps:
firstly, arranging a pre-butt welding pipeline between a first narrow flat plate trolley and a second narrow flat plate trolley, and conveying the pipeline to a target position;
secondly, hoisting the butt-welded pipeline between a third narrow flat trolley and a fourth narrow flat trolley, so that a butt-welded front pipe orifice of the butt-welded pipeline, a front side elevation of a front end arc top surface supporting plate of a vehicle body on the third narrow flat trolley and a front side elevation of a vehicle body plate of the third narrow flat trolley are arranged in the same side elevation, and a butt-welded rear pipe orifice of the butt-welded pipeline, a rear side elevation of a rear end arc top surface supporting plate of the vehicle body on the fourth narrow flat trolley and a rear side elevation of the vehicle body plate of the fourth narrow flat trolley are arranged in the same side elevation;
thirdly, transferring a third narrow flat trolley and a fourth narrow flat trolley which are loaded with pipelines subjected to butt welding to a pipeline butt joint position, and enabling the rear side vertical face of the body plate of the second narrow flat trolley to be abutted with the front side vertical face of the body plate of the third narrow flat trolley; positioning and butt joint of the rear end port of the pipeline before butt welding and the front end port of the pipeline after butt welding are completed;
and fourthly, connecting the hand-power inverted chains with the welding pipeline through the hoisting rope, simultaneously operating the four hand-power inverted chains to lift the pipeline before butt welding and the pipeline after butt welding to the same height, and welding the pipe orifice after butt welding of the pipeline before butt welding with the pipe orifice before butt welding of the pipeline after butt welding.
The invention can effectively meet the requirement of pipeline movement and installation under the condition that a crane is not used in a closed factory building, greatly reduces the use of a crane class and saves the hoisting cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the narrow body trolley of the invention in a side view direction.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a large-diameter pipeline transferring and butt welding positioning mechanism comprises a first narrow flat car 1, a second narrow flat car 2, a third narrow flat car 3, a fourth narrow flat car 4, a butt welding front pipeline 8, a butt welding rear pipeline 9, a car body front end arc top surface supporting plate 5 and a car body rear end arc top surface supporting plate 6, wherein the structure of the first narrow flat car 1, the structure of the second narrow flat car 2, the structure of the third narrow flat car 3 and the structure of the fourth narrow flat car 4 are completely the same, the structure of the car body front end arc top surface supporting plate 5 is completely the same as the structure of the car body rear end arc top surface supporting plate 6, the car body front end arc top surface supporting plate 5 is arranged at the car body front end of each narrow flat car, the car body rear end arc top surface supporting plate 6 is arranged at the car body rear end of each narrow flat car, a portal frame 15 is fixedly arranged at the car body center of each narrow flat car, a hand-pulling chain 16 is arranged on the portal frame 15, a butt welding front pipeline 7 is arranged between the first narrow flat trolley 1 and the second narrow flat trolley 2, a butt welding rear pipeline 9 is arranged between the third narrow flat trolley 3 and the fourth narrow flat trolley 4, and a butt welding rear pipe orifice 8 of the butt welding front pipeline 7, a rear end side vertical surface 12 of a vehicle body rear end arc top surface supporting plate on the second narrow flat trolley 2 and a vehicle body plate rear end side vertical surface 11 of the second narrow flat trolley 2 are arranged in the same side vertical surface; a butt welding front pipe orifice 10 of the butt welding rear pipeline 9, a front side vertical surface 14 of a vehicle body front end arc top surface supporting plate on the third narrow flat trolley 3 and a front side vertical surface 13 of a vehicle body plate of the third narrow flat trolley 2 are arranged in the same side vertical surface; the rear end side vertical surface 11 of the body plate of the second narrow flat car 2 is abutted against the front end side vertical surface 13 of the body plate of the third narrow flat car 3.
The hand-pulling chain blocks 16 on each narrow flat plate trolley are connected with the butt welding pipeline on the narrow flat plate trolley through hoisting ropes 17, and the four hand-pulling chain blocks 16 are used for lifting the butt welding front pipeline 7 and the butt welding rear pipeline 9 to the same height and then performing butt welding; the pipeline can be moved to the installation position by one winch.
A method for positioning a large-diameter pipeline transferring and butt welding positioning mechanism comprises the following steps:
firstly, a butt welding front pipeline 7 is arranged between a first narrow flat plate trolley 1 and a second narrow flat plate trolley 2 and is conveyed to a target position;
secondly, hoisting the butt-welded pipeline 9 between a third narrow flat trolley 3 and a fourth narrow flat trolley 4, enabling a butt-welded front pipe orifice 10 of the butt-welded pipeline 9, a front side vertical surface 14 of a front end arc-shaped top surface supporting plate of a vehicle body on the third narrow flat trolley 3 and a front side vertical surface 13 of a vehicle body plate of the third narrow flat trolley 2 to be arranged in the same side vertical surface, and enabling a butt-welded rear pipe orifice of the butt-welded pipeline 9, a rear side vertical surface of a rear end arc-shaped top surface supporting plate of the vehicle body on the fourth narrow flat trolley 4 and a rear side vertical surface of a vehicle body plate of the fourth narrow flat trolley 4 to be arranged in the same side vertical surface;
thirdly, transferring a third narrow flat trolley 3 and a fourth narrow flat trolley 4 which are loaded with butt-welded pipelines 9 to a pipeline butt joint position, and enabling a rear side vertical face 11 of a body plate of the second narrow flat trolley 2 to be abutted with a front side vertical face 13 of the body plate of the third narrow flat trolley 3; positioning and butt joint of the rear end port of the butt-welded front pipeline 7 and the front end port of the butt-welded rear pipeline 9 are completed;
and fourthly, connecting the hand-power inverted chains 16 with the welding pipeline through the hoisting ropes 17, simultaneously operating the four hand-power inverted chains 16 to lift the butt-welding front pipeline 7 and the butt-welding rear pipeline 9 to the same height, and welding the butt-welding rear pipe orifice 8 of the butt-welding front pipeline 7 and the butt-welding front pipe orifice 10 of the butt-welding rear pipeline 9 together.
Claims (2)
1. A large-diameter pipeline transferring and butt welding positioning mechanism comprises a first narrow flat trolley (1), a second narrow flat trolley (2), a third narrow flat trolley (3), a fourth narrow flat trolley (4), a butt welding front pipeline (7), a butt welding rear pipeline (9), a trolley body front end arc-shaped top surface supporting plate (5) and a trolley body rear end arc-shaped top surface supporting plate (6), wherein the structure of the first narrow flat trolley (1), the structure of the second narrow flat trolley (2), the structure of the third narrow flat trolley (3) and the structure of the fourth narrow flat trolley (4) are completely the same, the structure of the trolley body front end arc-shaped top surface supporting plate (5) and the structure of the trolley body rear end arc-shaped top surface supporting plate (6) are completely the same, and the large-diameter pipeline transferring and butt welding positioning mechanism is characterized in that the trolley body front end arc-shaped top surface supporting plate (5) is arranged at the front end of each narrow flat trolley, the rear end of the vehicle body of each narrow flat trolley is provided with a vehicle body rear end arc top surface supporting plate (6), the center of the vehicle body of each narrow flat trolley is fixedly provided with a portal frame (15), a hand-pulling chain block (16) is arranged on the portal frame (15), a butt welding front pipeline (7) is arranged between a first narrow flat trolley (1) and a second narrow flat trolley (2), a butt welding rear pipeline (9) is arranged between a third narrow flat trolley (3) and a fourth narrow flat trolley (4), and a butt welding rear pipe orifice (8) of the butt welding front pipeline (7), a vehicle body rear end arc top surface supporting plate rear end side vertical surface (12) on the second narrow flat trolley (2) and a vehicle body plate rear end side vertical surface (11) of the second narrow flat trolley (2) are arranged in the same side; a butt welding front pipe orifice (10) of a butt welding rear pipeline (9), a front side vertical surface (14) of a vehicle body front end arc top surface supporting plate on the third narrow flat car (3) and a front side vertical surface (13) of a vehicle body plate of the third narrow flat car (3) are arranged in the same side vertical surface; the rear end side vertical surface (11) of the body plate of the second narrow body flat car (2) is abutted with the front end side vertical surface (13) of the body plate of the third narrow body flat car (3).
2. The large-caliber pipeline transferring and butt welding positioning mechanism according to claim 1, wherein the hand-pulling chain blocks (16) on each narrow flat car are connected with the butt welding pipeline on the car body through hoisting ropes (17), and the four hand-pulling chain blocks (16) are used for butt welding after lifting the pipeline (7) before butt welding and the pipeline (9) after butt welding to the same height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021311399.2U CN212683007U (en) | 2020-07-07 | 2020-07-07 | Large-diameter pipeline transferring and butt welding positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021311399.2U CN212683007U (en) | 2020-07-07 | 2020-07-07 | Large-diameter pipeline transferring and butt welding positioning mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN212683007U true CN212683007U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021311399.2U Active CN212683007U (en) | 2020-07-07 | 2020-07-07 | Large-diameter pipeline transferring and butt welding positioning mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN212683007U (en) |
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- 2020-07-07 CN CN202021311399.2U patent/CN212683007U/en active Active
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