Double-wall pipe assembly tool

Abstract

The utility model discloses a double-wall pipe assembly tool which comprises a supporting frame, rectangular through holes are formed in the two sides of the supporting frame, first moving plates are slidably connected to the sides, close to each other, of the inner walls of the two sides of each rectangular through hole, and a connecting plate is slidably connected to one side of each first moving plate. Second moving plates are fixedly mounted on the sides, away from the first moving plates, of the connecting plates, a sliding groove is formed in the front face of the supporting frame in the vertical direction, a sliding block is placed in the sliding groove, and first clamping plates and second clamping plates are arranged on the front face of the sliding block and the sides, close to each other, of the two second moving plates correspondingly. According to the double-wall pipe assembly tool, the double-wall pipe can be clamped and welded, when the double-wall pipe assembly tool is not located on the same plane, the double-wall pipe can be clamped, butt joint and positioning of an inner pipe and an outer pipe of the double-wall pipe needing to be welded are achieved, and guarantee is provided for precise manufacturing of outfitting pieces of the double-wall pipe for liquefied natural gas conveying.

Description

Technical Field

[0001] The utility model relates to the technical field of double-wall pipe assemblies, in particular to a double-wall pipe assembly tool. Background Art

[0002] Double-wall pipe is a key component of LNG carrier piping systems, a specialized system for gas transmission. It consists of an inner and outer tube, supported by multiple removable clamps. The double-wall pipe is manufactured in sections and then butt-welded. The individual shapes of the double-wall pipe and the resulting pipe shape are determined according to the drawing requirements.

[0003] When assembling double-walled pipes, the inner and outer pipes need to be welded together separately. They need to be positioned during operation. If they are on the same plane, they can be placed on the ground for fixed welding. However, the double-walled pipes may not be on the same plane when assembled with the welding machine, making clamping and fixing them during welding more difficult. Therefore, a clamping device is required that can clamp double-walled pipes that are not on the same plane.

[0004] To this end, we proposed a double-wall pipe assembly tooling to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a double-wall pipe assembly tooling to address the deficiencies of the prior art and to solve the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0008] As a preferred technical solution of the present invention, the front side of the support frame is provided with a slide groove in the vertical direction, the slider placed in the slide groove is provided with a threaded hole in the vertical direction that matches the second threaded rod, and a handwheel is installed at the top end of the second threaded rod.

[0009] As an optimal technical solution of the present invention, a threaded hole matching the first threaded rod is opened in the top center of the two first movable plates, and the bottom end of the first threaded rod is rotatably connected to the bottom inner wall of the rectangular through hole opened on both sides of the support frame.

[0010] As the preferred technical solution of the present invention, a threaded hole is provided on the side of the two second movable plates away from each other, and a fourth threaded rod matching the threaded hole is provided in the threaded hole. The fourth threaded rod is rotatably connected to the limiting plate at one end close to the first movable plate, and a rotating plate is installed at the other end of the fourth threaded rod.

[0011] As a preferred technical solution of the present invention, grooves are provided on one side of the two second movable plates that are close to each other and on the front side of the support frame, and a slide groove is provided in the vertical direction on one side of the front side of the slider placed in the slide groove, and the top inner wall and the bottom inner wall in the groove are fixed and the first clamping plate is installed at an angle to one side.

[0012] As a preferred technical solution of the present invention, the two second clamping plates are arranged on one side of the groove opened by the second movable plate and are located between the two first clamping plates. A second rotating shaft passing through the two second clamping plates is installed on the side of the two first clamping plates close to each other and located in the groove opened by the second movable plate.

[0013] As a preferred technical solution of the present invention, the middle parts of the side where the two first clamping plates are close to each other and the middle parts of the side where the two second clamping plates are close to each other are both rotatably connected to the first rotating shaft, and one side of the first rotating shaft installed between the two second clamping plates is rotatably connected to a third threaded rod that passes through the first rotating shaft installed between the two first clamping plates, and a rotating rod is fixedly installed at one end of the third threaded rod.

[0014] As a preferred technical solution of the present invention, a plurality of legs are installed at the bottom of the support frame, and a counterweight plate is welded to the lower part of the back of the support frame.

[0015] Compared with the prior art, the present invention provides a double-wall pipe assembly tool with the following features:

[0016] Beneficial effects:

[0017] The double-walled pipe assembly tooling of the present invention is specially used for the butt welding combination of two adjacent double-walled pipe sections. The double-walled pipes are clamped by arranging a servo motor, a movable plate and a clamping plate. Especially when welding the double-walled pipes, the double-walled pipes can be clamped even if they are not on the same plane, and the inner pipe and outer pipe of the double-walled pipe to be welded can be butt-jointed and positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first movable plate of the utility model;

[0020] Figure 3 This is a side view of the connecting plate of the utility model;

[0021] Figure 4 Schematic diagram of the double-wall pipe after welding.

[0022] Figure markings: 1. support frame; 2. first movable plate; 3. support leg; 4. first threaded rod; 5. rotating plate; 6. second movable plate; 7. first clamping plate; 701, second clamping plate; 8. handwheel; 9. second threaded rod; 10. servo motor; 11. counterweight plate; 12. connecting plate; 13. first rotating shaft; 1301, second rotating shaft; 14. third threaded rod; 15. rotating rod; 16. limit plate; 17. fourth threaded rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 3In this embodiment, a double-walled pipe assembly tool is involved, which includes a support frame 1, rectangular through holes are opened on both sides of the support frame 1, and a first movable plate 2 is slidably connected to the side where the inner walls of the two sides of the rectangular through holes are close to each other, and a connecting plate 12 is slidably connected to one side of the first movable plate 2, and a second movable plate 6 is fixedly installed on the side of the connecting plate 12 away from the first movable plate 2, a sliding groove is opened on the front side of the support frame 1 in the vertical direction, and a slider is placed in the sliding groove, and a first clamping plate 7 and a second clamping plate are provided on the front side of the slider and the side where the two second movable plates 6 are close to each other. Plate 701 can achieve the purpose of clamping double-walled pipes of different diameters through the first clamping plate 7 and the second clamping plate 701. Servo motors 10 are fixedly installed on the top surfaces of both sides of the support frame 1, and the output end of the servo motor 10 is connected to the first threaded rod 4 that passes through the first movable plate 2 through a coupling. Starting the servo motor 10 can drive the first threaded rod 4 to rotate, and the bottom inner wall of the slide groove opened in the vertical direction on the front side of the support frame 1 is rotated and connected to the second threaded rod 9 that passes through the slide groove and places a slider. When the second threaded rod 9 rotates, the slider can move up and down.

[0025] The top of the second threaded rod 9 is provided with a hand wheel 8, and the second threaded rod 9 is rotated. The top center part of the two first movable plates 2 is provided with a threaded hole matching the first threaded rod 4. The bottom end of the first threaded rod 4 is rotatably connected to the bottom inner wall of the rectangular through hole opened on both sides of the support frame 1. When the first threaded rod 4 rotates, the first movable plate 2 can be moved up and down. The two second movable plates 6 are provided with threaded holes on the sides away from each other, and a fourth threaded rod 17 matching therewith is provided in the threaded hole. The fourth threaded rod 17 is rotatably connected to the limiting plate 16 at one end close to the first movable plate 2. When the fourth threaded rod 17 rotates, the limiting plate 16 can be moved. The limiting plate 16 can be made of rubber material, and a rotating plate 5 is installed on the other end of the fourth threaded rod 17. Rotating the rotating plate 5 can make the fourth threaded rod 17 rotate;

[0026] The first and second clamping plates 701 are connected to each other by a plurality of screw terminals, and the first and second clamping plates 702 are connected to each other by a plurality of screw terminals. One side of the first rotating shaft 13 installed between the two second clamping plates 701 is rotatably connected to a third threaded rod 14 that passes through the first rotating shaft 13 installed between the two first clamping plates 7, and one end of the third threaded rod 14 is fixedly installed with a rotating rod 15. The rotating rod 15 can be rotated to drive the third threaded rod 14 to rotate, thereby enabling the second clamping plate 701 to move, so that double-walled pipes of different diameters can be clamped by the first clamping plate 7 and the second clamping plate 701. A plurality of legs 3 are installed at the bottom of the support frame 1 to support the support frame 1, and a counterweight plate 11 is welded at the lower part of the back of the support frame 1 to prevent tipping over when clamping the double-walled pipe.

[0027] When the double-walled pipe assembly tooling of the present invention is in use, the second threaded rod 9 can be driven to rotate by rotating the hand wheel 8, so that the second movable plate 6 located on the front of the support frame 1 can be moved downward to the bottom, and then one end of the double-walled pipe can be clamped by the first clamping plate 7 and the second clamping plate 701 provided on the second movable plate 6 located on the front of the support frame 1. After the clamping of one end of the double-walled pipe is completed, the inner pipe of the double-walled pipe to be welded can be clamped by the first clamping plate 7 and the second clamping plate 701 provided on the second movable plate 6 located on one side of the support frame 1, and then the servo motor 10 can be started to move the first movable plate 2 to the corresponding height by driving the rotation of the first threaded rod 4, and then the second movable plate 6 can be pushed. At this time, the inner pipe clamped by the first clamping plate 7 and the second clamping plate 701 provided on the second movable plate 6 can be moved to the front of the support frame 1 The corresponding connection at one end of the clamped double-walled tube can then be rotated to rotate the rotating plate 5, which can make the fourth threaded rod 17 rotate and the limiting plate 16 close to the first movable plate 2, thereby achieving the limitation of the second movable plate 6. At this time, the purpose of fixing the double-walled tube to be welded is also achieved. Similarly, the double-walled tube to be welded can be positioned in the same way through the corresponding structure provided on the other side of the support frame 1, which can facilitate welding. When clamping the double-walled tube, the double-walled tube can be placed on the first clamping plate 7 and the second clamping plate 701, and then the rotating rod 15 can be rotated to drive the third threaded rod 14 to rotate, thereby enabling the second clamping plate 701 to move, so that double-walled tubes of different diameters can be clamped by the first clamping plate 7 and the second clamping plate 701, and the welding operation can be performed after clamping.

[0028] After the inner and outer tubes are welded together, the position of the elastic support clip is controlled to make the double-wall tube structure more stable and reliable. Finally, each part is made into parts according to the requirements of the drawing, such as Figure 4 After all spare parts are complete, they will be transported to large LNG ships for outfitting and connection.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double-wall pipe assembly tool, comprising a support frame (1), characterized in that: The support frame (1) is provided with rectangular through holes on both sides, and a first movable plate (2) is slidably connected to the side where the inner walls of the two sides of the rectangular through holes are close to each other, a connecting plate (12) is slidably connected to one side of the first movable plate (2), and a second movable plate (6) is fixedly installed on the side of the connecting plate (12) away from the first movable plate (2), a sliding groove is provided on the front side of the support frame (1) along the vertical direction, and a slider is placed in the sliding groove, and a first clamping plate (7) and a second clamping plate (701) are provided on the front side of the slider and the side where the two second movable plates (6) are close to each other, a servo motor (10) is fixedly installed on the top surface of both sides of the support frame (1), and the output end of the servo motor (10) is connected to a first threaded rod (4) passing through the first movable plate (2) through a coupling, and a second threaded rod (9) passing through the slider placed in the sliding groove is rotatably connected to the bottom inner wall of the sliding groove provided on the front side of the support frame (1) 2. The double-wall pipe assembly tool according to claim 1, characterized in that: The front side of the support frame (1) is provided with a slide groove in the vertical direction, and a slider placed in the slide groove is provided with a threaded hole matching the second threaded rod (9) in the vertical direction, and a hand wheel (8) is installed at the top end of the second threaded rod (9).

3. The double-wall pipe assembly tool according to claim 1, characterized in that: The top center portions of the two first movable plates (2) are provided with threaded holes matching the first threaded rods (4), and the bottom ends of the first threaded rods (4) are rotatably connected to the bottom inner walls of the rectangular through holes provided on both sides of the support frame (1).

4. The double-wall pipe assembly tool according to claim 1, characterized in that: A threaded hole is provided on one side of the two second movable plates (6) away from each other, and a fourth threaded rod (17) matching the threaded hole is provided in the threaded hole. One end of the fourth threaded rod (17) close to the first movable plate (2) is rotatably connected to the limiting plate (16), and the other end of the fourth threaded rod (17) is installed with a rotating plate (5).

5. The double-wall pipe assembly tool according to claim 1, characterized in that: A groove is provided on one side of the two second movable plates (6) close to each other and on the front side of the support frame (1) in a vertical direction and on the front side of the slider placed in the slide groove, and the top inner wall and the bottom inner wall in the groove are fixed and a first clamping plate (7) is installed in an inclined manner to one side.

6. The double-wall pipe assembly tool according to claim 1, characterized in that: The two second clamping plates (701) are arranged on one side of the groove opened by the second movable plate (6) and are located between the two first clamping plates (7). A second rotating shaft (1301) passing through the two second clamping plates (701) is installed on the side of the two first clamping plates (7) close to each other and located in the groove opened by the second movable plate (6).

7. The double-wall pipe assembly tool according to claim 1, characterized in that: The middle parts of the sides of the two first clamping plates (7) close to each other and the middle parts of the sides of the two second clamping plates (701) close to each other are both rotatably connected to the first rotating shaft (13), and one side of the first rotating shaft (13) installed between the two second clamping plates (701) is rotatably connected to a third threaded rod (14) that passes through the first rotating shaft (13) installed between the two first clamping plates (7), and one end of the third threaded rod (14) is fixedly installed with a rotating rod (15).

8. The double-wall pipe assembly tool according to claim 1, characterized in that: A plurality of legs (3) are installed at the bottom of the support frame (1), and a counterweight plate (11) is welded to the lower portion of the back of the support frame (1).

Images