A cooling device for a seamless steel pipe welding

Abstract

The utility model discloses a kind of cooling devices for welding of seamless steel pipe, including main body, rotating mechanism, clamping mechanism and cooling mechanism, the rotating mechanism includes first motor and driven part, the clamping mechanism includes electric push rod and connecting rod, the cooling mechanism includes second motor and screw rod, under the mutual cooperation of above mechanism, the steel pipe of this device rotates at uniform speed, welding heat distribution is consistent, avoid local overheating or weld layer partial thickness, and continuous rotation can realize automatic girth welding, greatly improve production efficiency, in addition, the device can adapt to a variety of specifications steel pipe, reduce special tooling investment, and steel pipe is not easy to shake in welding / cooling process, and weld quality is stable.

Description

Technical Field

[0001] This utility model relates to the field of cooling treatment technology, specifically a cooling device for seamless steel pipe overlay welding. Background Technology

[0002] This device refers to an auxiliary device used to quickly and evenly cool the workpiece during the overlay welding process (surface overlay welding of wear-resistant layers, corrosion-resistant layers, etc.) of seamless steel pipes, preventing the pipe body from overheating, deforming, or affecting the quality of the overlay welding layer.

[0003] Traditional equipment requires manual rotation of the steel pipe, which is cumbersome and inefficient. Uneven rotation also results in discontinuous welds and irregular weld overlays.

[0004] Secondly, the limitation of processing only steel pipes of fixed specifications restricts the range of applications, and the unstable clamping of steel pipes can easily cause them to loosen or shift, resulting in uneven welds or even scrap.

[0005] Finally, the welding machine and cooling nozzle require manual adjustment, which is complex and prone to misalignment. Delayed or uneven cooling can easily cause cracking of the weld layer or instability of the structure. Summary of the Invention

[0006] (a) Technical problems to be solved In view of the shortcomings of the prior art, this utility model provides a cooling device for seamless steel pipe overlay welding to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a cooling device for seamless steel pipe overlay welding, comprising a main body, a rotating mechanism, a clamping mechanism, and a cooling mechanism. The rotating mechanism includes a first motor and a driven member. The first motor is fixedly installed at the bottom of the main body, and the driven member is installed on the main body and rotatably connected to it. A transmission belt is installed on the first motor, and one end of the transmission belt is connected to the driven member. A first roller is installed on the driven member and slidably connected to the main body. The clamping mechanism includes an electric push rod and a connecting rod. The electric push rod is fixedly installed inside the driven member, and the connecting rod is installed on the electric push rod and rotatably connected to it. A clamping block is installed at one end of the connecting rod, and the clamping block is rotatably connected to the connecting rod and slidably connected to the driven member. A friction pad is provided on the clamping block.

[0008] Preferably, the cooling mechanism includes a second motor and a lead screw. The second motor is fixedly installed inside the main body, and the lead screw is fixedly installed at one end of the second motor. A movable frame is installed on the main body. The movable frame is slidably connected to the main body and cooperates with the lead screw. A welding machine and a hydraulic cylinder are installed on the movable frame. The hydraulic cylinder is fixedly installed on the movable frame, and the welding machine is fixedly connected to one end of the hydraulic cylinder.

[0009] In a further preferred embodiment, the mobile frame is equipped with a spray nozzle, and the bottom of the main body is equipped with a collection device to facilitate the recovery of coolant.

[0010] In a further preferred embodiment, a second roller is mounted on the driven member, and a third roller is mounted on the movable frame. The second roller and the third roller are slidably connected to the main body, which facilitates the operation of the device.

[0011] In a further preferred embodiment, the main body is provided with a first slide groove and a second slide groove, the first roller is slidably connected to the first slide groove, and the second roller is slidably connected to the second slide groove, which facilitates the rotation of the driven member.

[0012] In a further preferred embodiment, the motor is provided with a drive block, one end of the transmission belt is connected to the drive block, the main body is provided with a limit ring, and the limit ring is provided with a second sliding groove to ensure stable rotation of the driven component.

[0013] In a further preferred embodiment, the main body is provided with a third sliding groove, the movable frame is provided with a threaded hole, the third sliding groove is slidably connected to a third roller, and the threaded hole is connected to a lead screw, which facilitates the stable movement of the movable frame.

[0014] In a further preferred embodiment, the clamping block is provided with a positioning plate, the main body is provided with a collection groove, and the collection component is connected to the collection groove to facilitate the recovery and collection of coolant.

[0015] (III) Beneficial Effects Compared with the prior art, this utility model provides a cooling device for seamless steel pipe overlay welding, which has the following beneficial effects: In this invention, by setting up a rotating mechanism, the steel pipe of the device rotates at a uniform speed under the mutual cooperation of the first motor and driven components, and the welding heat distribution is consistent, avoiding local overheating or excessively thick weld layer. Continuous rotation can realize automatic circumferential welding, which greatly improves production efficiency.

[0016] By setting up a clamping mechanism, this device can adapt to various specifications of steel pipes through the cooperation of components such as electric push rods and connecting rods, reducing the investment in special tooling. Furthermore, the steel pipes are not easily shaken during welding / cooling, and the weld quality is stable.

[0017] In this invention, by setting up a cooling mechanism, the welding machine and the cooling nozzle move synchronously under the cooperation of the second motor and the lead screw, and welding and cooling are carried out continuously. The welding position and the cooling area are strictly aligned to avoid overcooling or overheating. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a cooling device for seamless steel pipe overlay welding according to the present invention; Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle; Figure 3 This is an exploded view of the rotating mechanism in this utility model; Figure 4 This is an exploded view of the clamping mechanism in this utility model; Figure 5 This is a cross-sectional view of the internal structure of the main body in this utility model.

[0019] In the diagram: 1. Main body; 2. First motor; 3. Driven component; 4. Transmission belt; 5. First roller; 6. Electric push rod; 7. Connecting rod; 8. Clamping block; 9. Friction pad; 10. Second motor; 11. Lead screw; 12. Moving frame; 13. Welding machine; 14. Hydraulic cylinder; 15. Spraying component; 16. Collecting component; 17. Second roller; 18. Third roller; 19. First slide groove; 20. Second slide groove; 21. Driving block; 22. Limiting ring; 23. Third slide groove; 24. Threaded hole; 25. Positioning plate; 26. Collecting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please see Figures 1-5 A cooling device for seamless steel pipe overlay welding includes a main body 1, a rotating mechanism, a clamping mechanism, and a cooling mechanism. The rotating mechanism includes a first motor 2 and a driven member 3. The first motor 2 is fixedly installed at the bottom of the main body 1, and the driven member 3 is installed on the main body 1 and rotatably connected to the main body 1. A transmission belt 4 is installed on the first motor 2, and one end of the transmission belt 4 is connected to the driven member 3. A first roller 5 is installed on the driven member 3 and is slidably connected to the main body 1. The clamping mechanism includes an electric push rod 6 and a connecting rod 7. The electric push rod 6 is fixedly installed inside the driven member 3, and the connecting rod 7 is installed on the electric push rod 6 and rotatably connected to the electric push rod 6. A clamping block 8 is installed at one end of the connecting rod 7. The clamping block 8 is rotatably connected to the connecting rod 7 and slidably connected to the driven member 3. A friction pad 9 is provided on the clamping block 8.

[0022] In this embodiment, the rotating mechanism includes a first motor 2 and a driven member 3. In use, the first motor 2 drives the active block 21 to rotate, and the transmission belt 4 installed on the active block 21 directly drives the driven member 3 to rotate on the main body 1. When the driven member 3 rotates on the main body 1, the first roller 5 is slidably connected to the first slide groove 19 on the main body 1, and the second roller 17 is slidably connected to the second slide groove 20 in the limiting ring 22, which facilitates the stable rotation of the driven member 3.

[0023] In this embodiment, the clamping mechanism includes an electric push rod 6 and a connecting rod 7. In use, the steel pipe can be installed onto the main body 1. Then, the electric push rod 6 on the driven member 3 is driven, causing the position of the connecting rod 7 to change. One end of the connecting rod 7 directly pushes the clamping block 8 to slide in the driven member 3. Under the action of the positioning plate 25 of the clamping block 8, the installation of the steel pipe is more stable. In addition, an external device can be used to support one end of the pipe, which facilitates the welding of the steel pipe.

[0024] In this embodiment, the cooling mechanism includes a second motor 10 and a lead screw 11. During use, the second motor 10, installed inside the main body 1, drives the lead screw 11 to rotate inside the main body 1. The moving frame 12, connected to the lead screw 11 via the threaded hole 24, begins to slide inside the main body 1. The third roller 18, installed on the moving frame 12, slides in the third groove 23 of the main body 1. Subsequently, the hydraulic cylinder 14 on the moving frame 12 directly drives the welding machine 13 to contact the steel pipe and begin welding. When the driven member 3 rotates the steel pipe, the second motor 10 starts to drive, allowing the moving frame 12 to slide stably. The spraying member 15, supplied with external coolant, sprays the coolant directly onto the steel pipe to cool it down. The liquid is directly affected by gravity and falls into the collection tank 26 of the main body 1, and finally enters the collection member 16 for secondary recycling.

[0025] Example 2: In summary, during use, the steel pipe is first installed onto the main body 1. At this time, the electric push rod 6 on the driven member 3 is driven, causing the position of the connecting rod 7 to change. One end of the connecting rod 7 directly pushes the clamping block 8 to slide within the driven member 3. Under the action of the positioning plate 25 of the clamping block 8, the installation of the steel pipe becomes more stable. Additionally, an external device can be used to support one end of the pipe, facilitating welding. Then, the steel pipe is rotated. The first motor 2 drives the active block 21 to rotate, and the transmission belt 4 mounted on the active block 21 directly drives the driven member 3 to rotate on the main body 1. When the driven member 3 rotates on the main body 1, the first roller 5 is slidably connected to the first sliding groove 19 on the main body 1, while the second roller 17 is slidably connected to the second sliding groove 20 in the limiting ring 22, facilitating the movement of the steel pipe. When the moving part 3 rotates stably, the second motor 10 installed inside the main body 1 drives the lead screw 11 to rotate inside the main body 1. The moving frame 12, connected by the threaded hole 24 and the lead screw 11, begins to slide inside the main body 1. The third roller 18 installed on the moving frame 12 slides in the third slide groove 23 of the main body 1. Then, the hydraulic cylinder 14 on the moving frame 12 directly drives the welding machine 13 to contact the steel pipe and start welding. When the driven part 3 rotates the steel pipe, the second motor 10 starts to drive the moving frame 12 to slide stably. The spraying part 15 is injected with external coolant and sprays the coolant directly onto the steel pipe to cool it down. The liquid in the spraying part falls into the collection tank 26 of the main body 1 due to gravity and finally enters the collection part 16 for secondary recycling.

[0026] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device for seamless steel pipe overlay welding, comprising a main body (1), a rotating mechanism, a clamping mechanism, and a cooling mechanism, characterized in that, The rotating mechanism includes a first motor (2) and a driven member (3). The first motor (2) is fixedly installed at the bottom of the main body (1). The driven member (3) is installed on the main body (1) and rotatably connected to the main body (1). A transmission belt (4) is installed on the first motor (2). One end of the transmission belt (4) is connected to the driven member (3). A first roller (5) is installed on the driven member (3). The first roller (5) is slidably connected to the main body (1). The clamping mechanism includes an electric push rod (6) and a connecting rod (7). The electric push rod (6) is fixedly installed inside the driven member (3). The connecting rod (7) is installed on the electric push rod (6) and rotatably connected to the electric push rod (6). A clamping block (8) is installed at one end of the connecting rod (7). The clamping block (8) is rotatably connected to the connecting rod (7) and slidably connected to the driven member (3). A friction pad (9) is provided on the clamping block (8).

2. The cooling device for seamless steel pipe overlay welding according to claim 1, characterized in that: The cooling mechanism includes a second motor (10) and a lead screw (11). The second motor (10) is fixedly installed inside the main body (1). The lead screw (11) is fixedly installed at one end of the second motor (10). A movable frame (12) is installed on the main body (1). The movable frame (12) is slidably connected to the main body (1) and cooperates with the lead screw (11). A welding machine (13) and a hydraulic cylinder (14) are installed on the movable frame (12). The hydraulic cylinder (14) is fixedly installed on the movable frame (12). The welding machine (13) is fixedly connected to one end of the hydraulic cylinder (14).

3. A cooling device for seamless steel pipe overlay welding according to claim 2, characterized in that: The mobile frame (12) is equipped with a spraying component (15), and the main body (1) is equipped with a collecting component (16) at the bottom.

4. A cooling device for seamless steel pipe overlay welding according to claim 3, characterized in that: The driven member (3) is equipped with a second roller (17), and the movable frame (12) is equipped with a third roller (18). The second roller (17) and the third roller (18) are slidably connected to the main body (1).

5. A cooling device for seamless steel pipe overlay welding according to claim 4, characterized in that: The main body (1) is provided with a first slide groove (19) and a second slide groove (20), the first roller (5) is slidably connected to the first slide groove (19), and the second roller (17) is slidably connected to the second slide groove (20).

6. A cooling device for seamless steel pipe overlay welding according to claim 5, characterized in that: The motor is provided with an active block (21), one end of the transmission belt (4) is connected to the active block (21), the main body (1) is provided with a limit ring (22), and the limit ring (22) is provided with a second slide groove (20).

7. A cooling device for seamless steel pipe overlay welding according to claim 4, characterized in that: The main body (1) is provided with a third slide groove (23), the movable frame (12) is provided with a threaded hole (24), the third slide groove (23) is slidably connected to the third roller (18), and the threaded hole (24) is connected to the lead screw (11).

8. A cooling device for seamless steel pipe overlay welding according to claim 7, characterized in that: The clamping block (8) is provided with a positioning plate (25), the main body (1) is provided with a collection groove (26), and the collection component (16) is connected to the collection groove (26).

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