Pipeline flange assembly auxiliary tool

Abstract

The utility model relates to the technical field of pipeline construction, and discloses a pipeline flange assembly auxiliary tool, a support comprises a vertical positioning plate, a horizontal slide way is arranged in the middle of the vertical positioning plate, a pair of positioning bolts is installed in the slide way in a sliding mode, and the positioning bolts are matched with a flange plate; a horizontal hanging plate is vertically fixed to one side of the top of the vertical positioning plate, an adjusting bolt hole is vertically formed in the free end of the horizontal hanging plate, and an adjusting bolt is assembled in the adjusting bolt hole; a horizontal adjusting plate is vertically fixed to the other side of the lower portion of the vertical positioning plate, a posture bolt hole is vertically formed in the free end of the horizontal adjusting plate, and a posture bolt abutting against the pipeline is assembled in the posture bolt hole. The device is simple and small in structure, convenient to assemble, high in working efficiency, capable of being repeatedly used, capable of being operated by a single person and suitable for assembly work of pipeline flanges of most large specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to a pipeline flange assembly auxiliary tool, specifically a pipeline flange assembly auxiliary tooling. Background Art

[0002] In the process of pipeline processing, flange connection is a commonly used pipeline connection method. In the process of pipeline connection, it is usually necessary to assemble and fix the two pipe ends. In the process of assembling, the two pipe ends need to be aligned. The existing technology usually adopts manual assembly, that is, manually aligning the flange end with the pipe end for welding. This manual alignment method has the following problems: 1. It is difficult to align; 2. It is difficult to control for a long time, easy to deviate, and affect the assembly quality; 3. Two people are required to operate. During welding, in order to ensure coaxiality, auxiliary guide irons are also required for pipe wall welding, which is costly, inefficient, and affects the surface of the workpiece. In addition to the manual method, there is also the method of first erecting a bracket and then using a fall chain, or using tools such as jacks to adjust the coaxiality, but the on-site construction conditions are complicated, and tools such as fall chains and jacks cannot be applied to various on-site construction conditions.

[0003] like Fig. 9 As shown: In order to optimize stress distribution and prevent leakage and corrosion of bolts, the pressure vessel flange or pipeline flange adopts the principle of uniform distribution of bolt holes in the middle of the span. During the assembly of pipeline flanges, the horizontal position deviation is easy to adjust, but there are more upward and downward deviations, which makes the alignment and adjustment difficult, time-consuming and labor-intensive, and not conducive to assembly.

[0004] CN219805638U discloses an auxiliary tooling for pipe flange assembly, which uses an inverted L-shaped bracket and screws to insert the flange hole pin of the bracket into the flange hole near the side with larger coaxiality during flange assembly. At the same time, the bottom of the vertical section of the bracket also supports the pipe connected to the flange, and the screw position is adjusted to achieve centering. However, in actual operation, the flange pipe cannot be installed across and is prone to horizontal displacement. The auxiliary tooling cannot be used for flange assembly with different pipe diameters and has low applicability. Summary of the invention

[0005] The utility model provides a pipeline flange assembly auxiliary tooling to solve the problems that the current pipeline flange assembly is performed manually, which is difficult to align and maintain for a long time, the assembly process requires the cooperation of two people, and the cost is high and the efficiency is low.

[0006] The utility model is implemented by the following technical solutions:

[0007] A pipeline flange assembly auxiliary tooling comprises a bracket, the bracket comprises a vertical positioning plate, a horizontal slideway is opened in the middle of the vertical positioning plate, a pair of positioning bolts are slidably installed in the slideway, and the positioning bolts are adapted to the flange plate; a horizontal hanging plate is vertically fixed to one side of the top of the vertical positioning plate, an adjusting bolt hole is vertically opened at the free end of the horizontal hanging plate, and an adjusting bolt is installed in the adjusting bolt hole; a horizontal adjustment plate is vertically fixed to the other side of the lower part of the vertical positioning plate, a posture bolt hole is vertically opened at the free end of the horizontal adjustment plate, and a posture bolt that rests against the pipeline is installed in the posture bolt hole.

[0008] During implementation, the bracket includes a bracket, which is in a Z shape and is integrally formed or welded. The bracket includes a vertical positioning plate, which is in a rounded trapezoidal shape. A horizontal slideway is opened in the middle of the vertical positioning plate. The length of the slideway is greater than the distance between adjacent flange holes on the flange plate, and is used to adapt to pipe flanges of various specifications. A pair of positioning bolts are slidably installed in the slideway. The two positioning bolts are symmetrically positioned in the slideway to keep the flange pipeline balanced and stable. The positioning bolts are adapted to the flange plate, that is, the two positioning bolts are symmetrically installed in the flange holes of the flange plate after passing through the slideway;

[0009] A horizontal hanging plate is vertically fixed to one side of the top of the vertical positioning plate, an adjusting bolt hole is vertically opened at the free end of the horizontal hanging plate, the horizontal distance between the adjusting bolt hole and the vertical positioning plate is greater than the thickness of the flange, an internal thread is arranged in the adjusting bolt hole, an adjusting bolt is assembled in the adjusting bolt hole, and the free end of the screw of the adjusting bolt rests on the flange;

[0010] A horizontal adjustment plate is vertically fixed to the other side of the lower part of the vertical positioning plate, the upper surface of the horizontal adjustment plate is horizontal with the lower edge of the slideway, and a posture bolt hole is vertically opened at the free end of the horizontal adjustment plate, and a posture bolt with the free end of the screw rod against the pipeline is installed in the posture bolt hole;

[0011] The bracket also includes a reinforcing rib plate connected between the horizontal hanging plate and the horizontal adjustment plate, the top end of the reinforcing rib plate is connected to the end of the horizontal hanging plate, and the bottom end of the reinforcing rib plate is fixed to the upper surface of the horizontal adjustment plate.

[0012] When in use, pre-install the adjusting bolt in the adjusting bolt hole, pre-install the attitude bolt in the attitude bolt hole, pass the positioning bolt in the slideway to complete the initial installation of the auxiliary tooling; insert the positioning bolt of the auxiliary tooling into the flange hole near the side with larger coaxiality during assembly, and at the same time, slide the positioning bolt horizontally in the slideway to keep the positioning bolt symmetric, that is, the positions of the positioning bolts in the slideway correspond, and the installed flange holes are symmetrical about the central axis of the flange pipe; screw in the attitude bolt so that the free end of the screw of the attitude bolt rests on the pipe and the vertical positioning plate is perpendicular to the disk surface of the flange; screw in the adjusting bolt to adjust the coaxiality during flange assembly so that the two flanges are flush in the direction of the adjusting bolt, install the flange bolts on the remaining flange holes, and cooperate with the nuts to complete the pipeline flange assembly.

[0013] When one pipe flange assembly auxiliary tool cannot complete the coaxiality adjustment of the pipe flange assembly, two or more of the tools can be used to perform multi-angle combination adjustment.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] The utility model provides a pipeline flange assembly auxiliary tool. By adjusting each bolt in the tool, the coaxiality of the pipeline flange can be adjusted during assembly, which is convenient for the assembly of the pipeline flange. The device is suitable for different pipeline flange assemblies, has a simple and compact structure, a simple manufacturing process, and a low cost. It is convenient for assembly, improves on-site construction efficiency, is reusable, easy to carry during construction, can be operated by one person, saves man-hours, improves work efficiency, and greatly improves safety. It is also suitable for the assembly of pipeline flanges of most specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic front view of the structure of the utility model.

[0018] Figure 3 It is a left side view showing the structure of the present utility model.

[0019] Figure 4 It is a right side view showing the structure of the present utility model.

[0020] Figure 5 It is a schematic top view of the structure of the utility model.

[0021] Figure 6 This is a schematic diagram of the tooling of the utility model being installed on a pipeline flange.

[0022] Figure 7 The utility model is a schematic diagram of the coaxiality adjustment of the pipeline flange by the tooling of the utility model.

[0023] Figure 8 The utility model is a schematic diagram of the tooling of the utility model for fastening the pipeline flange after adjusting the coaxiality of the pipeline flange to the right position.

[0024] Fig. 9 This is a schematic diagram of the uniform distribution of flange holes across the span.

[0025] In the figure: 1- bracket, 101- vertical positioning plate, 1001- slideway, 102- horizontal hanging plate, 103- horizontal adjustment plate, 104- reinforcing rib plate, 2- positioning bolt, 3- posture bolt, 4- adjusting bolt, 5- pipe, 6- flange, 7- flange bolt, 8- nut. DETAILED DESCRIPTION

[0026] The utility model is described below in conjunction with specific embodiments.

[0027] A pipe flange assembly auxiliary tooling, such as Figures 1 to 8 As shown: it includes a bracket 1, the bracket 1 is Z-shaped, the bracket 1 is integrally formed or welded, the bracket 1 includes a vertical positioning plate 101, the vertical positioning plate 101 is a rounded trapezoid, a horizontal slide 1001 is opened in the middle of the vertical positioning plate 101, the length of the slide 1001 is greater than the distance between adjacent flange holes on the flange 6, and is used to adapt to pipe flanges of various specifications, a pair of positioning bolts 2 are slidably installed in the slide 1001, the two positioning bolts 2 are symmetrically positioned in the slide 1001 to keep the flange pipeline balanced and stable, and the positioning bolts 2 are adapted to the flange 6, that is, the two positioning bolts 2 are symmetrically installed in the flange holes of the flange 6 after passing through the slide 1001;

[0028] A horizontal hanging plate 102 is vertically fixed to one side of the top of the vertical positioning plate 101. An adjusting bolt hole is vertically opened at the free end of the horizontal hanging plate 102. The horizontal distance between the adjusting bolt hole and the vertical positioning plate 101 is greater than the thickness of the flange 6. An internal thread is provided in the adjusting bolt hole. An adjusting bolt 4 is installed in the adjusting bolt hole. The free end of the screw of the adjusting bolt 4 rests against the flange.

[0029] A horizontal adjustment plate 103 is vertically fixed to the other side of the lower part of the vertical positioning plate 101, the upper surface of the horizontal adjustment plate 103 is horizontal with the lower edge of the slideway 1001, and a posture bolt hole is vertically opened at the free end of the horizontal adjustment plate 103, and a posture bolt 3 with the free end of the screw rod against the pipe 5 is installed in the posture bolt hole;

[0030] The bracket 1 further includes a reinforcing rib plate 104 connected between the horizontal hanging plate 102 and the horizontal adjustment plate 103 .

[0031] When using, Figure 6As shown, the adjusting bolt 4 is pre-installed in the adjusting bolt hole, the posture bolt 3 is pre-installed in the posture bolt hole, and the positioning bolt 2 is inserted into the slideway 1001 to complete the initial installation of the auxiliary tooling; the positioning bolt 2 of the auxiliary tooling is inserted into the flange hole of the pipeline flange on one side, and at the same time, the positioning bolt 2 is horizontally slid in the slideway 1001 to keep the positioning bolt 2 symmetrical, that is, the positions of the positioning bolt 2 in the slideway 1001 correspond, and the inserted flange holes are symmetrical about the central axis of the flange pipeline; the posture bolt 3 is screwed in, so that the free end of the screw of the posture bolt 3 is against the pipeline 5 of the pipeline flange on one side, and the vertical positioning plate 101 is perpendicular to the disk surface of the flange plate 6 to prevent the pipeline flange from shaking; as shown in FIG. Figure 7 As shown, screw in the adjusting bolt 4 to adjust the coaxiality when assembling the flanges, so that the free end of the screw of the adjusting bolt 4 rests against the outer wall of the flange of the other side of the pipe flange, so that the two flanges 6 are flush in the direction of the adjusting bolt 4, and the flange bolts 7 are installed on the remaining flange holes, and matched with the nuts 8 to complete the pipe flange assembly.

[0032] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modification, improvement and equivalent substitution made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline flange assembly auxiliary tool, characterized in that: The bracket (1) comprises a vertical positioning plate (101), a horizontal slideway (1001) is provided in the middle of the vertical positioning plate (101), a pair of positioning bolts (2) are slidably mounted in the slideway (1001), and the positioning bolts (2) are adapted to fit the flange (6); A horizontal hanging plate (102) is vertically fixed to one side of the top of the vertical positioning plate (101), and an adjusting bolt hole is vertically opened at the free end of the horizontal hanging plate (102), and an adjusting bolt (4) is installed in the adjusting bolt hole; A horizontal adjustment plate (103) is vertically fixed to the other side of the lower part of the vertical positioning plate (101), and a posture bolt hole is vertically opened at the free end of the horizontal adjustment plate (103), and a posture bolt (3) that rests on the pipeline (5) is installed in the posture bolt hole.

2. The pipeline flange assembly auxiliary tooling according to claim 1, characterized in that: The bracket (1) also includes a reinforcing rib plate (104) connected between the horizontal hanging plate (102) and the horizontal adjustment plate (103).

3. The pipeline flange assembly auxiliary tool according to claim 1, characterized in that: The upper surface of the horizontal adjustment plate (103) is level with the lower edge of the slideway (1001).

4. The pipeline flange assembly auxiliary tool according to claim 1, characterized in that: The two positioning bolts (2) pass through the slideway (1001) and are symmetrically installed in the flange holes of the flange plate (6).

5. The pipeline flange assembly auxiliary tool according to claim 1, characterized in that: The horizontal distance between the adjusting bolt hole and the vertical positioning plate (101) is greater than the thickness of the flange (6).

6. The pipeline flange assembly auxiliary tool according to claim 1, characterized in that: The length of the slideway (1001) is greater than the distance between adjacent flange holes on the flange plate (6).

7. The pipeline flange assembly auxiliary tool according to claim 1, characterized in that: The bracket (1) is integrally formed or welded.

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