A heat pipe butt welding system

Abstract

This utility model discloses a heating pipeline butt welding system, including an annular support pipe fitted onto the pipeline to be welded. Three circumferentially distributed fastening components are fixedly installed on the inner wall of the annular support pipe, and two symmetrically arranged roller assemblies are also fixedly installed on the inner wall. A toothed ring is fixedly installed on the outer wall of the annular support pipe, and a movable housing capable of 360° movement along the toothed ring is installed outside the annular support pipe. A welding head is fixedly installed on the side of the movable housing. The fastening components consist of an electric telescopic cylinder and an arc-shaped pressure plate, and the roller assemblies consist of a roller frame and rollers. This utility model provides a heating pipeline butt welding system that can move axially along the pipeline to be welded, facilitating welding at different locations. It can automatically attach to the periphery of pipelines of different diameters, making welding of pipelines of varying diameters convenient.

Description

Technical Field

[0001] This utility model relates to a welding system for heating pipelines, belonging to the field of heating pipeline installation technology. Background Technology

[0002] The butt welding of heating pipelines is a critical step in the installation of heating pipeline systems, and its quality directly affects the safety and stability of the entire heating system.

[0003] There are various types of pipe butt welding devices in the prior art, such as the automatic pipe welding device based on a rotating electric arc disclosed in patent number CN202311601157.5, the automatic pipe welding machine in all positions disclosed in patent number CN202110608375.6, and an automatic welding device for circumferential seams of oil pipelines disclosed in patent number CN201710637549.5.

[0004] The technical solutions disclosed in the aforementioned patent documents can all achieve automatic welding of pipes in all directions around the circumference. However, in practice, the following technical problems still exist:

[0005] The welding device is not easy to move along the axial direction of the pipe to be welded, and it is difficult to switch the welding position. Therefore, it is not convenient to weld the welds at different positions. The pipes to be welded have different diameter specifications, and the position of the welding device is relatively cumbersome when fixing the pipes of different diameters.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] This utility model addresses the shortcomings of the prior art by providing a heating pipeline butt welding system that can move along the axial direction of the pipeline to be welded, facilitating welding of welds at different locations. It can also be automatically fixed to the periphery of pipelines of different diameters, making it convenient to weld pipelines of different diameters.

[0008] To solve the above technical problems, the present invention adopts the following technical solution:

[0009] A heating pipe butt welding system includes an annular support pipe, which is sleeved on the pipe to be welded. Three fastening components are fixedly installed on the inner wall of the annular support pipe in a circular arrangement, and two roller assemblies are fixedly installed on the inner wall of the annular support pipe in a symmetrical arrangement.

[0010] A toothed ring is fixedly installed on the outer wall of the annular support tube, and a movable housing that can move 360° along the toothed ring is installed on the outside of the annular support tube. A welding head is fixedly installed on the side of the movable housing.

[0011] The fastening component consists of an electric telescopic cylinder and an arc-shaped pressure plate, and the roller assembly consists of a roller frame and rollers.

[0012] Furthermore, a gear that meshes with a gear ring is installed inside the movable housing, and the gear is driven by a motor.

[0013] Furthermore, guide ring grooves are provided on both ends of the annular support tube, and the cross-section of the guide ring grooves is rectangular.

[0014] Furthermore, guide sliders that are slidably connected to the guide ring groove are installed inside the guide ring groove.

[0015] Furthermore, the guide slider is fixed to the side of the movable housing near the annular support tube.

[0016] Furthermore, the electric telescopic cylinder is fixed to the inner wall of the annular support tube, and the arc-shaped pressure plate is installed at the head of the telescopic rod of the electric telescopic cylinder.

[0017] Furthermore, the arc-shaped pressure plate and the telescopic rod of the electric telescopic cylinder are detachably connected.

[0018] Furthermore, the roller frame is fixed to the inner wall of the annular support tube.

[0019] Furthermore, the rollers are mounted on the left and right sides of the roller frame.

[0020] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0021] The fastening component in this utility model adopts a telescopic structure and uses arc-shaped pressure plates of different specifications to facilitate the overall fixation to the periphery of pipes of different diameters to be welded, and to weld pipes of different diameters.

[0022] This invention features two symmetrical roller assemblies on the inner side of an annular support tube. When the fastening components retract, the roller assemblies can drive the entire assembly to slide along the pipe to be welded, facilitating welding of welds at different locations.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 yes Figure 1 Schematic diagram of the cross section at point AA;

[0026] Figure 3 yes Figure 2 Enlarged view of a local structure.

[0027] In the figure, 1-pipe to be welded, 2-ring support pipe, 3-movable shell, 4-welding head, 5-fastening component, 51-electric telescopic cylinder, 52-arc pressure plate, 6-roller assembly, 61-roller frame, 62-roller, 7-gear ring, 8-gear, 9-guide ring groove, 10-guide slider. Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0029] like Figures 1-3 As shown in the figure, this utility model provides a heating pipeline butt welding system, including an annular support pipe 2, which is sleeved on the pipeline 1 to be welded. Three fastening components 5 are fixedly installed on the inner wall of the annular support pipe 2 in a circular arrangement. The fastening components 5 are pressed against the pipeline 1 to be welded. Two roller assemblies 6 are fixedly installed on the inner wall of the annular support pipe 2, which are symmetrically arranged on the left and right. The roller assemblies 6 can drive the whole to move along the pipeline 1 to be welded.

[0030] A toothed ring 7 is fixedly installed on the outer wall of the annular support tube 2, and a movable housing 3 that can move 360° along the toothed ring 7 is installed on the outside of the annular support tube 2.

[0031] The movable housing 3 is equipped with a gear 8 that meshes with the gear ring 7. The gear 8 is driven by a motor. The motor drives the gear 8 to rotate, thereby causing the movable housing 3 to move.

[0032] A welding head 4 is fixedly installed on the side of the movable housing 3, and the welding head 4 is positioned facing the weld seam of the pipe 1 to be welded.

[0033] Guide ring grooves 9 are provided on both ends of the annular support tube 2. The cross-section of the guide ring grooves 9 is rectangular. Guide sliders 10 are slidably connected to the guide ring grooves 9. The guide sliders 10 are fixed to the side of the movable housing 3 near the annular support tube 2.

[0034] By setting the guide slider 10 to move along the guide ring groove 9, the stable and precise movement of the moving housing 3 and the welding head 4 is ensured.

[0035] The fastening component 5 consists of an electric telescopic cylinder 51 and an arc-shaped pressure plate 52. The electric telescopic cylinder 51 is fixed to the inner wall of the annular support pipe 2, and the arc-shaped pressure plate 52 is installed at the head of the telescopic rod of the electric telescopic cylinder 51. The arc-shaped pressure plate 52 and the telescopic rod of the electric telescopic cylinder 51 are detachably connected. The arc-shaped pressure plate 52 has different specifications to accommodate pipes 1 of different diameters to be welded.

[0036] The roller assembly 6 consists of a roller frame 61 and rollers 62. The roller frame 61 is fixed to the inner wall of the annular support tube 2, and the rollers 62 are rotatably mounted on the left and right sides of the roller frame 61.

[0037] The specific working principle of this utility model is as follows:

[0038] During welding, multiple fastening components 5 extend synchronously, securing the annular support tube 2 to the outside of the pipe 1 to be welded. Then, the motor drives the gear 8 to rotate, causing the moving housing 3 and the welding head 4 to move 360° along the gear ring 7. The welding head 4 completes the butt welding during the movement.

[0039] The fastening component 5 in this utility model adopts a telescopic structure and uses arc-shaped pressure plates 52 with different specifications to facilitate the overall fixation to the periphery of the pipes 1 to be welded with different diameters, and to weld the pipes 1 to be welded with different diameters.

[0040] This utility model provides two symmetrical roller assemblies 6 on the inner side of the annular support pipe 2. When the fastening component 5 retracts, the roller assembly 6 can drive the whole to slide along the pipe 1 to be welded, which facilitates welding of welds at different positions.

[0041] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A butt welding system for heating pipelines, characterized in that: Includes an annular support pipe (2), which is sleeved on the pipe (1) to be welded. Three fastening components (5) are fixedly installed on the inner wall of the annular support pipe (2) in a circular pattern. Two roller assemblies (6) are fixedly installed on the inner wall of the annular support pipe (2) in a symmetrical arrangement. A toothed ring (7) is fixedly installed on the outer wall of the annular support tube (2), and a movable housing (3) that can move 360° along the toothed ring (7) is installed on the outside of the annular support tube (2). A welding head (4) is fixedly installed on the side of the movable housing (3). The fastening component (5) consists of an electric telescopic cylinder (51) and an arc-shaped pressure plate (52), and the roller assembly (6) consists of a roller frame (61) and rollers (62).

2. The heating pipeline butt welding system as described in claim 1, characterized in that: The movable housing (3) is equipped with a gear (8) that meshes with the gear ring (7), and the gear (8) is driven by a motor.

3. The heating pipeline butt welding system as described in claim 1, characterized in that: The annular support tube (2) has guide ring grooves (9) on both ends, and the cross-section of the guide ring grooves (9) is rectangular.

4. The heating pipeline butt welding system as described in claim 3, characterized in that: Inside the guide ring groove (9), there are guide sliders (10) that are slidably connected to it.

5. A heating pipeline butt welding system as described in claim 4, characterized in that: The guide slider (10) is fixed to the side of the movable housing (3) near the annular support tube (2).

6. The heating pipeline butt welding system as described in claim 1, characterized in that: The electric telescopic cylinder (51) is fixed to the inner wall of the annular support pipe (2), and the arc-shaped pressure plate (52) is installed at the head of the telescopic rod of the electric telescopic cylinder (51).

7. A heating pipeline butt welding system as described in claim 6, characterized in that: The arc-shaped pressure plate (52) and the telescopic rod of the electric telescopic cylinder (51) are detachably connected.

8. A heating pipeline butt welding system as described in claim 1, characterized in that: The roller frame (61) is fixed to the inner wall of the annular support tube (2).

9. A heating pipeline butt welding system as described in claim 8, characterized in that: Rollers (62) are rotatably mounted on the left and right sides of the roller frame (61).

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