Efficient surfacing corollary equipment device for inner wall of pipeline

By designing a high-efficiency welding equipment for the inner wall of pipes, and utilizing the main support frame, inner frame, and hydraulic control system, the instability and poor environmental conditions of manual welding have been solved, achieving stability and precision in the welding of the inner wall of pipes, and adapting to the needs of multi-angle welding.

CN223776421UActive Publication Date: 2026-01-09ANGANG STEEL CO LTD
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Patent Information

Application Number
CN202520064188.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-09
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

Most existing pipeline inner wall welding is done manually, which makes it difficult to guarantee welding standards. In addition, the lack of supporting equipment results in a rudimentary welding environment, which cannot meet the tooling requirements for both vertical and horizontal welding.

Method used

A high-efficiency pipe inner wall cladding welding device was designed, including components such as a main support frame, inner frame, lifting cylinder, rotary table and three-jaw chuck. The rotary table is driven by a drive motor, and the position of the welding gun is controlled by a hydraulic rod, so as to realize the stable clamping of the pipe and multi-angle welding.

Benefits of technology

It achieves stability and precision in pipeline welding, ensures welding quality, adapts to multiple needs of vertical or horizontal welding, and improves welding efficiency and consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pipeline inner wall efficient surfacing corollary equipment device, which relates to the technical field of welding tools and comprises a main seat frame, inner frames are arranged at two ends in the main seat frame, lifting oil cylinders are arranged in the inner frames, two ends of each lifting oil cylinder are rotatably connected with a movable seat, and the movable seats are connected with the main seat frame. A to-be-welded pipeline is placed on the three-jaw chuck and is clamped and limited through the three-jaw chuck in an adaptive size, so that the welding process has stability and universality; after the driving motor works, the rotating table is driven to rotate through the connecting shaft, so that the three-jaw chuck and a pipeline clamped on the three-jaw chuck are driven to rotate together, the pipeline can rotate at a constant speed during welding, and the welding quality is ensured; after the lifting oil cylinder in the inner frame works, the lifting oil cylinder extends out to drive the top plate rotationally connected with the main seat frame to be converted into the 90-degree vertical state from the 0-degree horizontal state through the movable seat, and therefore multiple adaptivity is provided in the pipeline welding work.
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Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, and in particular to a set of equipment and devices for high-efficiency overlay welding of the inner wall of a pipeline. Background Technology

[0002] Pipeline surfacing is a special welding process that involves melting welding wire or welding powder on the inner wall surface of the pipe using a heat source to form a uniform and dense coating or deposit. This coating or deposit can repair damage to the inner wall of the pipe, improve its corrosion resistance, and enhance its frictional properties.

[0003] In the process of implementing this solution, the inventors discovered the following problems in the existing technology that have not been adequately addressed:

[0004] In the aforementioned welding process, most of the welding is still done manually. Although some welders have good welding skills, they cannot guarantee that the required welding standards can be met every time.

[0005] The welding environment is relatively rudimentary, and there is no supporting equipment to assist in welding, which limits the welding process and makes it impossible to meet the tooling requirements for both vertical and horizontal welding at the same time, thus causing trouble for welding repair work. Utility Model Content

[0006] The main purpose of this utility model is to provide a set of equipment and devices for high-efficiency overlay welding of the inner wall of pipes, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A high-efficiency pipe inner wall cladding welding equipment includes a main frame, with inner frames at both ends of the main frame. Each inner frame contains a lifting cylinder, and each end of the lifting cylinder is rotatably connected to a movable seat. A top plate is rotatably connected to the top of the main frame. A connecting shaft is rotatably connected to the top plate between the inner frames. A rotating platform is fixed to the top end of the connecting shaft at the top of the top plate. A three-jaw chuck is mounted on the top of the rotating platform. A drive motor is fixed to the bottom of the top plate at the location of the connecting shaft. The output end of the drive motor is fixed to the bottom end of the connecting shaft passing through the top plate. A hydraulic rod is fixed to the bottom of the auxiliary frame. A movable seat is fixed to the telescopic end of the hydraulic rod. A second hydraulic rod is fixed to the side wall of the movable seat. A second movable seat is fixed to the output end of the second hydraulic rod. A welding torch holder is fixed to the end of the second movable seat away from the second hydraulic rod. A welding torch body is mounted to the end of the welding torch holder away from the second movable seat.

[0009] Preferably, the movable seats of the lifting cylinders located away from the telescopic ends are fixed inside the inner frame, and the movable seats at the telescopic ends of the lifting cylinders are fixed at the end of the top plate away from the point of rotation with the main frame.

[0010] Preferably, the main seat frame has support plates fixed at both ends of its outer top side near the secondary seat frame.

[0011] Preferably, both ends of the sub-base are fixed with fixing rods, and the fixing rods are slidably connected to the movable base after passing through it.

[0012] Preferably, both ends of the movable seat two located on one side of the hydraulic rod two are fixed with sliding rods, and the sliding rods are slidably connected to the side wall of the movable seat one after passing through it.

[0013] Preferably, the spacing between the inner frame and the main seat frame is greater than the diameter of the drive motor.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The pipe to be welded is placed on a three-jaw chuck and clamped and limited by it according to the appropriate size, so that the welding process is stable and versatile.

[0016] After the drive motor starts working, it drives the rotary table to rotate through the connecting shaft, which in turn drives the three-jaw chuck and the pipe held on it to rotate together, so that the pipe can rotate at a constant speed during welding, ensuring the welding quality.

[0017] The extension of the lifting cylinder inside the inner frame after operation can drive the top plate, which is rotatably connected to the main frame, to change from a 0° horizontal state to a 90° vertical state through the movable seat, thus providing multiple adaptability in pipe welding work.

[0018] After hydraulic rod one works, it drives moving seat one to rise and fall. After hydraulic rod two works, it drives moving seat two to move left and right. This allows the welding torch body connected to the welding torch bracket to perform welding processing on pipes in 0° horizontal and 90° vertical positions. This welding method can ensure that the welding quality of the welding process remains stable and precise. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a high-efficiency overlay welding equipment for the inner wall of a pipe according to the present invention;

[0020] Figure 2 This is a schematic diagram of the rotating table of the high-efficiency overlay welding equipment for the inner wall of a pipe according to this utility model when it is horizontal.

[0021] Figure 3This is a schematic diagram of the structure of the welding gun holder of a high-efficiency overlay welding equipment for the inner wall of a pipeline according to this utility model.

[0022] In the diagram: 1. Main support frame; 2. Top plate; 3. Rotary table; 4. Three-jaw chuck; 5. Drive motor; 6. Connecting shaft; 7. Inner frame; 8. Lifting cylinder; 9. Movable seat; 10. Sub-support frame; 11. Hydraulic rod one; 12. Moving seat one; 13. Hydraulic rod two; 14. Moving seat two; 15. Welding torch holder; 16. Welding torch body; 17. Fixed rod; 18. Sliding rod; 19. Support plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1-3 As shown, a high-efficiency pipe inner wall cladding welding equipment includes a main frame 1. Both ends of the main frame 1 are equipped with inner frames 7, and each inner frame 7 contains a lifting cylinder 8. Both ends of the lifting cylinder 8 are rotatably connected to movable seats 9. A top plate 2 is rotatably connected to the top of the main frame 1. A connecting shaft 6 is rotatably connected to the top plate 2, located between the inner frames 7. A rotating platform 3 is fixed to the top end of the connecting shaft 6 at the top of the top plate 2. A three-jaw chuck 4 is mounted on the top of the rotating platform 3. The top plate 2 is located at the top of the connecting shaft 6. A drive motor 5 is fixed at the bottom of the position. The output end of the drive motor 5 and the connecting shaft 6 are fixed through the bottom end of the top plate 2. A hydraulic rod 11 is fixed at the bottom inside the sub-base 10. A movable seat 12 is fixed at the telescopic end of the hydraulic rod 11. A hydraulic rod 23 is fixed on the side wall of the movable seat 12. A movable seat 24 is fixed at the output end of the hydraulic rod 23. A welding gun bracket 15 is fixed at the end of the movable seat 214 away from the hydraulic rod 213. A welding gun body 16 is installed at the end of the welding gun bracket 15 away from the movable seat 214.

[0025] Specifically, the movable seat 9 of the lifting cylinder 8, located away from the telescopic end, is fixed inside the inner frame 7. The movable seat 9 of the telescopic end of the lifting cylinder 8 is fixed at the end of the top plate 2 away from the rotation point of the main frame 1. The telescopic movement of the lifting cylinder 8 can drive the top plate 2 to switch between two states: horizontal and vertical.

[0026] Specifically, support plates 19 are fixed at both ends of the outer top of the main frame 1 near the sub-frame 10. When the top plate 2 is rotated to a vertical state, it can sit on the support plates 19, thereby increasing the stability of the top plate 2 when it is vertical.

[0027] Specifically, both ends of the sub-base frame 10 are fixed with fixing rods 17, which are slidably connected to the first movable base 12 after passing through it. Both ends of the second movable base 14 located on the side of the second hydraulic rod 13 are fixed with sliding rods 18, which are slidably connected to the side wall of the first movable base 12 after passing through it, so that the movement of the first movable base 12 and the second movable base 14 has horizontal stability.

[0028] Specifically, the spacing between the inner frames 7 and the main frame 1 is greater than the diameter of the drive motor 5. When rotating from a vertical state to a horizontal state, the drive motor 5 can be housed between the two inner frames 7 inside the main frame 1.

[0029] Working principle:

[0030] The pipe to be welded is placed on the three-jaw chuck 4 and clamped and limited by it according to the appropriate size, so that the welding process is stable and versatile.

[0031] After the drive motor 5 starts working, it drives the rotary table 3 to rotate through the connecting shaft 6, which in turn drives the three-jaw chuck 4 and the pipe held on it to rotate together, so that the pipe can rotate at a constant speed during welding, ensuring the welding quality.

[0032] After the lifting cylinder 8 inside the inner frame 7 is working, its extension can drive the top plate 2, which is rotatably connected to the main frame 1, to change from a 0° horizontal state to a 90° vertical state through the movable seat 9, thus providing multiple adaptability in pipe welding work.

[0033] After the hydraulic rod 11 is working, it drives the moving seat 12 to rise and fall. After the hydraulic rod 2 13 is working, it drives the moving seat 2 14 to move left and right. This allows the welding torch body 16 connected to the welding torch bracket 15 to perform welding processing on pipes in 0° horizontal and 90° vertical positions. This welding method can ensure that the welding quality of the welding process remains stable and accurate.

[0034] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency overlay welding equipment for pipeline inner walls, comprising a main support frame (1) and a secondary support frame (10), characterized in that: The main frame (1) has inner frames (7) at both ends, and each inner frame (7) has a lifting cylinder (8). Each lifting cylinder (8) has a movable seat (9) rotatably connected to both ends. The top of the main frame (1) is rotatably connected to a top plate (2). The top plate (2) is rotatably connected to a connecting shaft (6) at a position between the inner frames (7). A rotating platform (3) is fixed at one end of the top plate (2). A three-jaw chuck (4) is installed on the top of the rotating platform (3). A drive motor (5) is fixed at the bottom of the top plate (2) at the position of the connecting shaft (6). The output end of the drive motor (5) is fixed to the bottom end of the connecting shaft (6) passing through the top plate (2). A hydraulic rod (11) is fixed at the bottom of the sub-base (10). A movable seat (12) is fixed at the telescopic end of the hydraulic rod (11). A hydraulic rod (13) is fixed on the side wall of the movable seat (12). A movable seat (14) is fixed at the output end of the hydraulic rod (13). A welding gun bracket (15) is fixed at the end of the movable seat (14) away from the hydraulic rod (13). A welding gun body (16) is installed at the end of the welding gun bracket (15) away from the movable seat (14).

2. The high-efficiency overlay welding equipment for pipeline inner walls according to claim 1, characterized in that: The movable seat (9) of the lifting cylinder (8) at the position away from the telescopic end is fixed inside the inner frame (7), and the movable seat (9) at the telescopic end of the lifting cylinder (8) is fixed at the end of the top plate (2) away from the rotation of the main seat frame (1).

3. The high-efficiency overlay welding equipment for pipeline inner walls according to claim 1, characterized in that: The main frame (1) has support plates (19) fixed at both ends of its outer top on the side near the sub-frame (10).

4. The high-efficiency overlay welding equipment for pipeline inner walls according to claim 1, characterized in that: The sub-seat frame (10) has fixed rods (17) at both ends inside, and the fixed rods (17) are slidably connected to the movable seat (12) after passing through it.

5. The high-efficiency overlay welding equipment for pipeline inner walls according to claim 1, characterized in that: The movable seat 2 (14) is fixed with slide rods (18) at both ends on one side of the hydraulic rod 2 (13). The slide rods (18) are slidably connected to the side wall of the movable seat 1 (12) after passing through it.

6. The high-efficiency overlay welding equipment for pipeline inner walls according to claim 1, characterized in that: The spacing between the inner frame (7) and the main frame (1) is greater than the diameter of the drive motor (5).