CN-224210608-U - PE flange welding frame

Abstract

The utility model discloses a PE flange welding frame, which relates to the technical field of PE flange welding and comprises a front support plate fixedly arranged on a steel flange through a fixing bolt, wherein a support column is fixedly arranged on one side of the front support plate far away from the steel flange, a rear support plate is fixedly arranged on one end of the support column far away from the front support plate, a flange chuck is arranged on one side of the rear support plate near the front support plate, the flange chuck is clamped on the support column to slide, and a hydraulic system for pushing the flange chuck to move is fixedly arranged on one side of the rear support plate far away from the flange chuck.

Inventors

• MA JICHANG
• WANG YINGYING
• MENG FEI
• MA RUI

Assignees

• 河南中拓石油工程技术股份有限公司

Dates

Publication Date

20260508

Application Date

20250509

Claims (5)

1. 1. A PE flange welding frame is characterized by comprising a front support plate (1) fixedly mounted on a steel flange (9) through a fixing bolt (3), a support column (4) is fixedly mounted on one side, away from the steel flange (9), of the front support plate (1), a rear support plate (2) is fixedly mounted on one end, away from the front support plate (1), of the support column (4), a flange chuck (5) is arranged on one side, close to the front support plate (1), of the rear support plate (2), the flange chuck (5) is clamped on the support column (4) to slide, and a hydraulic system (6) for pushing the flange chuck (5) to move is fixedly mounted on one side, away from the flange chuck (5), of the rear support plate (2).
2. 2. A PE flange welding machine frame according to claim 1, characterized in that the number of support columns (4) is 3-4 and corresponds uniformly to the circumference of the steel flange (9).
3. 3. A PE flange welding machine frame according to claim 1, characterized in that the flange chuck (5) is provided with a linear bearing corresponding to the support column (4), and the linear bearing is sleeved on the support column (4) to slide.
4. 4. The PE flange welding frame as set forth in claim 1, wherein the hydraulic system (6) is a hydraulic cylinder, and a moving end of the hydraulic cylinder is fixedly connected with the flange chuck (5) through the rear support plate (2).
5. 5. The PE flange welding frame as set forth in claim 1, wherein a PE flange (8) corresponding to the PE pipe (7) in the steel flange (9) in size is clamped on one side, close to the steel flange (9), of the flange chuck (5).

Description

PE flange welding frame Technical Field The utility model relates to the technical field of PE flange welding, in particular to a PE flange welding frame. Background When the PE pipe is subjected to diameter reduction, the PE pipe is required to be subjected to diameter reduction through a diameter reducer, then the PE pipe is lined in an original pipeline, and then the PE pipe is automatically recovered to achieve close fit with the original pipeline. Each lining section is required to be connected in a combined flange mode of a steel flange and a PE flange, when the PE flange is welded, after the lining PE pipe is required to be completely recovered, the PE pipe is pulled out, the retraction size of the welded PE flange is calculated, and the PE flange is welded, so that the effect of perfect fit of the PE flange and the steel flange is achieved. The existing PE flange welding adopts a PE pipe welding machine for welding, and two welding modes are adopted, wherein one welding mode is to weld the PE flange by adopting a standard welding machine with the same caliber under the condition that a pipe can be drawn sufficiently, and the other welding mode is to weld the PE flange by adopting a PE welding machine with a large-caliber lengthened oil cylinder. Disadvantages of the prior art: (1) When the same caliber welder is used for welding, the frame is fixed on the pulled PE pipe, the length of the PE pipe is required to be longer, at least the distance between two groups of slips is required to be welded, and the length of the pulled pipe can be realized for a section with a long distance of a single lining, but the difficulty is very high; (2) The lengthened oil cylinder is adopted for large-caliber welding, the frame is fixed on an original pipeline, and the lengthened oil cylinder is suitable for the condition of short tube drawing, and has the defects that the construction operation difficulty of the large-caliber welding frame of the lengthened oil cylinder is large, the construction occupied space is large, a larger operation pit needs to be excavated, the size and the weight are large, lifting equipment needs to be equipped, the operation difficulty (particularly in a limited space) is increased, the site construction cost and the time cost are increased, and in addition, the equipment cost is increased due to the customization of a large-caliber welding machine. Disclosure of utility model The utility model aims to solve the problems and provide a PE flange welding frame. The utility model realizes the above purpose through the following technical scheme: The utility model provides a PE flange welding frame, includes the preceding backup pad through fixing bolt fixed mounting on the steel flange, preceding backup pad is kept away from steel flange one side fixed mounting has the support column, the support column is kept away from preceding backup pad one end fixed mounting has the back backup pad, the back backup pad is close to preceding backup pad one side is provided with the flange chuck, the flange chuck card is in slide on the support column, the back backup pad is kept away from flange chuck one side fixed mounting has the hydraulic system that is used for promoting flange chuck removal. Preferably, the number of the support columns is 3-4, and the support columns uniformly correspond to the circumference of the steel flange. Preferably, the flange chuck is provided with a linear bearing corresponding to the support column, and the linear bearing is sleeved on the support column to slide. Preferably, the hydraulic system is a hydraulic cylinder, and the moving end of the hydraulic cylinder penetrates through the rear supporting plate to be fixedly connected with the flange chuck. Preferably, one side of the flange chuck, which is close to the steel flange, is clamped with a PE flange corresponding to the inner PE pipe of the steel flange in size. Compared with the prior art, the PE welding machine frame has the beneficial effects that the machine frame is fixed on the steel flange of the original pipeline, and the PE flange is fixed by adopting the flange chuck, so that the length of the machine frame is shortened, the weight of the machine frame is reduced, the construction difficulty is reduced, the operation space is reduced, the construction efficiency is improved, and the equipment cost and the construction cost are reduced. Drawings In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art. Fig. 1 is a schematic perspective view of a PE flange welding frame according to the present