A fixing device for seamless welding of boiler pipes

Abstract

The application relates to a fixing device for seamless welding of a boiler pipeline, and relates to the technical field of pipeline welding, which comprises a rack and a circular fixer arranged on the rack. The application places the moving pipeline on the fixing belt, starts a driving mechanism to drive the second fixing half ring to rotate, and rotates the second fixing half ring to abut against the first fixing half ring. The first fixing half ring and the second fixing half ring cooperate to limit the pipeline on the fixing belt, so that the fixing work of the pipeline position is completed, and the probability of falling of the pipeline during welding is reduced.

Description

Technical Field

[0001] This application relates to the technical field of pipe welding, and in particular to a fixing device for seamless welding of boiler pipes. Background Technology

[0002] Seamless pipe welding is a welding technique used in pipe connections to achieve seamless connections at pipe joints, thereby improving the overall strength, sealing, and corrosion resistance of the piping system.

[0003] In related technologies, reference can be made to Chinese invention patent CN106181142A, which discloses a steel pipe welding device, including a roller support for placing the steel pipe; a moving trolley disposed at the end of the steel pipe; a welding device disposed on the side of the moving trolley near the end of the steel pipe; a rolling device connected to the roller support; and a motor for controlling the operation of the rolling device. In use, the steel pipe is positioned on the rollers of the roller support. The position of the moving trolley is adjusted so that the welding device on it aligns with the welding area on the steel pipe, and welding begins. At this time, the motor is started. Under the action of the motor, the rolling device drives the rollers to rotate, thereby driving the steel pipe to rotate, thus completing one revolution of welding on the steel pipe.

[0004] However, the aforementioned steel pipe welding device is only supported by a roller support during use. When the steel pipe is subjected to external force, it is easy for it to fall off the roller support, which not only affects the welding work but also threatens the life and health of the workers. Summary of the Invention

[0005] To improve the stability of the pipeline position during welding, this application provides a fixing device for seamless welding of boiler pipelines.

[0006] This application provides a fixing device for seamless welding of boiler pipes, which adopts the following technical solution:

[0007] A fixing device for seamless welding of boiler pipes includes a frame and a circular fixing device mounted on the frame, the circular fixing device comprising:

[0008] The first fixed half-ring is mounted on the frame;

[0009] The second fixed half-ring is rotatably mounted on the frame;

[0010] A fixing strap, one end of which is connected to a first fixing half-ring and the other end of which is connected to a second fixing half-ring, with the pipe placed on the fixing strap;

[0011] A drive mechanism is mounted on the frame and is used to drive the second fixed half-ring to rotate.

[0012] By adopting the above technical solution, after the moving pipe is placed on the fixing belt, the drive mechanism is activated to drive the second fixing half ring to rotate. The second fixing half ring rotates until it contacts the first fixing half ring. The first fixing half ring and the second fixing half ring cooperate to limit the pipe on the fixing belt, thereby completing the fixing of the pipe position and reducing the probability of the pipe moving and falling during welding.

[0013] Optionally, the drive mechanism includes:

[0014] A first drive rod, which is rotatably mounted on the frame;

[0015] The first driving block and the second fixed half ring have a sliding groove on their side wall, and the first driving block is slidably mounted on the sliding groove;

[0016] The second drive rod has one end rotatably connected to the first drive rod and the other end rotatably connected to the first drive block.

[0017] A rotating assembly, which is mounted on the frame and is used to control the rotation of the first drive rod.

[0018] By adopting the above technical solution, the rotating component starts to drive the first driving rod to rotate, the first driving rod rotates to drive the second driving rod to rotate, the second driving rod rotates to drive the first driving block to move, and the first driving block moves to drive the second fixed half ring to rotate, thereby realizing the rotation of the second fixed half ring.

[0019] Optionally, the rotating assembly includes:

[0020] A rotating motor is mounted on the frame;

[0021] The worm gear is mounted on the output shaft of the rotating motor;

[0022] The worm gear is rotatably mounted on the frame and meshes with the worm.

[0023] A rotating shaft is rotatably mounted on the frame and connected to a worm gear and a first drive rod.

[0024] By adopting the above technical solution, the rotating motor starts and drives the worm to rotate, the worm to rotate the worm wheel, the worm wheel to rotate the rotating shaft, and the rotating shaft to rotate the first drive rod. Thus, the rotation of the first drive rod is achieved by controlling the rotating motor.

[0025] Optionally, the fixing strap is a fixing strap made of a smooth, flexible material.

[0026] By adopting the above technical solution, the fixing strap is made of a smooth, flexible material, so that the fixing strap can cover and fix the pipe without affecting the pipe's rotation.

[0027] Optionally, the frame is provided with a pipe-connecting mechanism for receiving the pipe on the fixing strip when the first and second fixed half-rings are opened, the pipe-connecting mechanism comprising:

[0028] A pipe fitting plate is vertically slidably mounted on the frame. An arc-shaped placement groove is formed on the upper surface of the pipe fitting plate for placing the pipe.

[0029] A lifting assembly is mounted on a frame and is used to drive the pipe plate to move up and down.

[0030] By adopting the above technical solution, when the first and second fixed half rings are opened, the pipe moves out from the first and second fixed half rings as the surface of the fixing belt is tensioned. At this time, the lifting component is activated to drive the connecting plate to move up, and the connecting plate supports the pipe, thereby reducing the probability of the pipe slipping off the fixing belt when it moves out of the first and second fixed half rings, and protecting the welded pipe.

[0031] Optionally, the lifting assembly includes:

[0032] A lifting gear, wherein the lifting gear is mounted on a worm gear;

[0033] A lifting rack is vertically slidably mounted on the frame and meshes with a lifting gear, and a connecting plate is mounted on the top of the lifting rack.

[0034] By adopting the above technical solution, the worm gear rotates to drive the second fixed half ring to rotate. When the second fixed half ring rotates to move the pipeline out, the worm gear rotates to drive the lifting gear to rotate. The lifting gear rotates to drive the lifting rack to move upward. The lifting rack moves upward to drive the connecting plate to move upward to support the pipeline. Thus, when the second fixed half ring rotates open, the connecting plate can support the pipeline. There is no need to control the connecting plate separately to move the connecting plate, which is convenient, fast and efficient.

[0035] Optionally, a transmission gear is rotatably mounted on the frame, the transmission gear meshes with a lifting gear, the transmission gear and the lifting rack are located on opposite sides of the lifting gear, and the rotating shaft is mounted on the transmission gear and connected to the first drive rod.

[0036] By adopting the above technical solution, a transmission gear is installed on the side of the lifting gear away from the lifting rack. The transmission gear is connected to the first drive rod through a rotating shaft. This enables the lifting gear to rotate when the worm gear rotates, and the lifting gear can rotate to move the connecting plate downward when the second fixed half ring and the first fixed half ring are closed, and to move the connecting plate upward when the second fixed half ring and the first fixed half ring are opened.

[0037] Optionally, the first fixing half-ring and the second fixing half-ring are respectively provided with a first fixing clip and a second fixing clip, which clamp and fix the two ends of the fixing strap respectively.

[0038] By adopting the above technical solution, the fixing band is installed by installing a first fixing clip and a second fixing clip on the first fixing half ring and the second fixing half ring. The length of the fixing band between the first fixing clip and the second fixing clip can be adjusted according to the size of the pipe to be welded, so that the fixing band can meet the fixing work of pipes with different diameters.

[0039] Optionally, a first moving block and a second moving block are horizontally slidably mounted on the frame. The first fixed half-ring is disposed on the first moving block, and the second moving half-ring is rotatably disposed on the second moving block. A moving component is disposed on the frame, and the moving component is used to control the first moving block and the second moving block to move closer to or further away from each other.

[0040] By adopting the above technical solution, the distance between the first and second fixed half-rings can be adjusted by using a moving component to control the first and second moving blocks to move closer or further apart from each other. This allows the first and second fixed half-rings to perform the function of limiting the movement of pipes with different diameters.

[0041] Optionally, the moving component includes:

[0042] A movable lead screw is rotatably mounted on the frame. The movable lead screw has two threaded sections with opposite helical lines from the middle to both ends. The movable lead screw is threadedly connected to the first movable block and the second movable block. The first movable block and the second movable block are respectively located on the two threaded sections with opposite helical lines.

[0043] A movable motor is mounted on the frame and its output shaft is connected to a movable lead screw.

[0044] By adopting the above technical solution, the moving motor starts and drives the moving lead screw to rotate. The rotation of the moving lead screw causes the first moving block and the second moving block to move closer or further apart. Thus, by controlling the moving motor, the distance between the first moving block and the second moving block can be adjusted.

[0045] In summary, this application includes at least one of the following beneficial technical effects:

[0046] 1. After the pipe is placed on the fixing belt, the drive mechanism is activated to rotate the second fixing half ring. The second fixing half ring rotates until it contacts the first fixing half ring. The first and second fixing half rings work together to limit the pipe on the fixing belt, thereby completing the fixing of the pipe position and reducing the probability of the pipe moving and falling during welding.

[0047] 2. When the first and second fixed half rings are opened, the pipe moves out of the first and second fixed half rings as the surface of the fixing band is tensioned. At this time, the lifting assembly is activated to drive the connecting plate to move up. The connecting plate supports the pipe, thereby reducing the probability of the pipe slipping off the fixing band when it moves out of the first and second fixed half rings, and protecting the welded pipe.

[0048] 3. The moving motor starts and drives the moving lead screw to rotate. The rotation of the moving lead screw causes the first moving block and the second moving block to move closer or further apart. Thus, by controlling the moving motor, the distance between the first moving block and the second moving block can be adjusted. Attached Figure Description

[0049] Figure 1 This is a three-dimensional structural diagram of this application;

[0050] Figure 2 This is a structural schematic diagram of the circular retainer, drive mechanism, connecting mechanism and moving component in this application.

[0051] Reference numerals: 1. Frame; 11. Circular retainer; 12. First fixed half-ring; 13. Second fixed half-ring; 14. Fixing belt; 15. Drive mechanism; 16. First moving block; 17. Second moving block; 18. First fixing clamp; 19. Second fixing clamp; 21. First drive rod; 22. First drive block; 23. Second drive rod; 24. Rotating assembly; 25. Rotating motor; 26. Worm gear; 27. Worm wheel; 28. Rotating shaft; 29. ​​Transmission gear; 3. Connecting mechanism; 31. Connecting plate; 32. Lifting assembly; 33. Lifting gear; 34. Lifting rack; 4. Moving assembly; 41. Moving lead screw; 42. Moving motor. Detailed Implementation

[0052] The following is in conjunction with the appendix Figure 1 -Appendix Figure 2 This application will be described in further detail.

[0053] This application discloses a fixing device for seamless welding of boiler pipes.

[0054] Reference Figure 1The fixing device for seamless welding of boiler pipes includes a frame 1 and a circular fixing device 11 set on the frame 1, which fixes the position of the pipe.

[0055] Reference Figure 1 and Figure 2 The circular retainer 11 includes a first fixing half-ring 12, a second fixing half-ring 13, a retaining band 14, and a drive mechanism 15. A first moving block 16 and a second moving block 17 are horizontally slidably mounted on the frame 1. The first fixing half-ring 12 is fixedly mounted on the upper surface of the first moving block 16. The second fixing half-ring 13 is rotatably mounted on the upper surface of the second moving block 17. A first retaining clip 18 and a second retaining clip 19 are respectively fixedly mounted on the ends of the first fixing half-ring 12 and the second fixing half-ring 13 away from the first moving block 16 and the second moving block 17. Both ends of the retaining band 14 are clamped and fixed by the first retaining clip 18 and the second retaining clip 19, respectively. The retaining band 14 is made of a smooth, flexible material. The pipe is placed on the retaining band 14.

[0056] Reference Figure 1 and Figure 2 The drive mechanism 15 is mounted on the frame 1 and is used to drive the second fixed half-ring 13 to rotate. The drive rod mechanism includes a first drive rod 21, a first drive block 22, a second drive rod 23, and a rotating assembly 24. One end of the first drive rod 21 is rotatably mounted on the frame 1. A sliding groove is formed along the arc-shaped annular surface on the side wall of the second fixed half-ring 13, and the first drive block 22 is slidably mounted on the sliding groove. One end of the second drive rod 23 is rotatably connected to the first drive rod 21, and the other end of the second drive rod 23 is rotatably connected to the first drive block 22.

[0057] Reference Figure 1 and Figure 2 A rotating assembly 24 is mounted on the frame 1 and is used to control the rotation of the first drive rod 21. The rotating assembly 24 includes a rotating motor 25, a worm gear 26, a worm wheel 27, and a rotating shaft 28. The rotating motor 25 is fixedly mounted on the frame 1. The worm gear 26 is fixedly mounted on the output shaft of the rotating motor 25. The worm wheel 27 is rotatably mounted on the frame 1 and meshes with the worm gear 26. A lifting gear 33 is coaxially fixedly mounted on the worm wheel 27. A transmission gear 29 is rotatably mounted on the frame 1. The transmission gear 29 meshes with the lifting gear 33. The rotating shaft 28 is rotatably mounted on the frame 1, with one end connected to the transmission gear 29 and the other end connected to the first drive rod 21.

[0058] Reference Figure 1 and Figure 2The rotating motor 25 starts and drives the worm gear 26 to rotate. The rotation of the worm gear 26 drives the worm wheel 27 to rotate. The rotation of the worm wheel 27 drives the lifting gear 33 to rotate. The rotation of the lifting gear 33 drives the transmission gear 29 to rotate. The rotation of the transmission gear 29 drives the rotating shaft 28 to rotate. The rotation of the rotating shaft 28 drives the first drive rod 21 to rotate. The rotation of the first drive rod 21 drives the second drive rod 23 to rotate. The rotation of the second drive rod 23 drives the first drive block 22 to move. The movement of the first drive block 22 drives the second fixed half ring 13 to rotate. Thus, the rotation of the second fixed half ring 13 is achieved by controlling the rotating motor 25.

[0059] Reference Figure 1 and Figure 2 After the pipe is placed on the fixing belt 14, the rotating motor 25 is started to drive the second fixing half ring 13 to rotate. The second fixing half ring 13 rotates until it contacts the first fixing half ring 12. The first fixing half ring 12 and the second fixing half ring 13 cooperate to limit the pipe on the fixing belt 14, thereby completing the fixing of the pipe position and reducing the probability of the pipe moving and falling during welding.

[0060] Reference Figure 1 and Figure 2 The frame 1 is equipped with a pipe connection mechanism 3 for receiving the pipe on the fixing belt 14 when the first fixing half ring 12 and the second fixing half ring 13 are opened. The pipe connection mechanism 3 includes a pipe connection plate 31 and a lifting assembly 32. The pipe connection plate 31 is vertically slidably mounted on the frame 1 via the lifting assembly 32. An arc-shaped placement groove is formed on the upper surface of the pipe connection plate 31 for placing the pipe.

[0061] Reference Figure 1 and Figure 2 The lifting assembly 32 includes a lifting gear 33 and a lifting rack 34. The lifting rack 34 is vertically slidably mounted on the frame 1 and meshes with the lifting gear 33. The connecting plate 31 is fixedly mounted on the top of the lifting rack 34. When the worm gear 27 rotates, it drives the second fixed half-ring 13 to rotate and move the pipeline out. The rotation of the worm gear 27 drives the lifting gear 33 to rotate, which in turn drives the lifting rack 34 to move upward. The upward movement of the lifting rack 34 drives the connecting plate 31 to move upward to support the pipeline.

[0062] Referring to the figure, a moving assembly 4 is provided on the frame 1. The moving assembly 4 is used to control the first moving block 16 and the second moving block 17 to move closer or further apart. The moving assembly 4 includes a moving lead screw 41 and a moving motor 42. The moving lead screw 41 is rotatably mounted on the frame 1 and is in a horizontal position. The moving lead screw 41 has two threaded sections with opposite helical lines from the middle to both ends. The moving lead screw 41 is threadedly connected to both the first moving block 16 and the second moving block 17, and the first moving block 16 and the second moving block 17 are respectively located on the two threaded sections with opposite helical lines. The moving motor 42 is fixedly mounted on the frame 1 and its output shaft is connected to the moving lead screw 41.

[0063] Reference Figure 1 and Figure 2 When the moving motor 42 is started, it drives the moving lead screw 41 to rotate. The rotation of the moving lead screw 41 causes the first moving block 16 and the second moving block 17 to move closer or further apart. Thus, by controlling the moving motor 42, the distance between the first moving block 16 and the second moving block 17 can be adjusted.

[0064] The working principle of this application embodiment is as follows:

[0065] After the pipe is placed on the fixing belt 14, the rotating motor 25 is started to drive the second fixing half ring 13 to rotate. The second fixing half ring 13 rotates until it contacts the first fixing half ring 12. The first fixing half ring 12 and the second fixing half ring 13 cooperate to limit the pipe on the fixing belt 14, thereby completing the fixing of the pipe position and reducing the probability of the pipe moving and falling during welding.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fixing device for seamless welding of boiler pipes, characterized in that: Includes a frame (1) and a circular retainer (11) disposed on the frame (1), the circular retainer (11) comprising: The first fixed half ring (12) is mounted on the frame (1); The second fixed half ring (13) is rotatably mounted on the frame (1); A fixing band (14) is provided, one end of which is connected to a first fixing half-ring (12), and the other end of which is connected to a second fixing half-ring (13). The pipe is placed on the fixing band (14). A drive mechanism (15) is mounted on the frame (1) and is used to drive the second fixed half ring (13) to rotate. The drive mechanism (15) includes: The first drive rod (21) is rotatably mounted on the frame (1); The first driving block (22) and the second fixed half ring (13) have sliding grooves on their side walls, and the first driving block (22) is slidably mounted on the sliding grooves; The second drive rod (23) has one end rotatably connected to the first drive rod (21) and the other end rotatably connected to the first drive block (22); Rotating assembly (24), which is mounted on the frame (1) and is used to control the rotation of the first drive rod (21); The rotating assembly (24) includes: A rotating motor (25) is mounted on a frame (1); Worm (26), the worm (26) is mounted on the output shaft of the rotating motor (25); Worm gear (27), which is rotatably mounted on the frame (1) and meshes with the worm (26); A rotating shaft (28) is rotatably mounted on the frame (1) and connected to a worm gear (27) and a first drive rod (21); The frame (1) is provided with a pipe connection mechanism (3) for receiving the pipe on the fixing band (14) when the first fixed half ring (12) and the second fixed half ring (13) are opened. The pipe connection mechanism (3) includes: Connecting plate (31), the connecting plate (31) is vertically slidably mounted on the frame (1), and an arc-shaped placement groove is provided on the upper surface of the connecting plate (31) for placing the pipe; A lifting assembly (32) is mounted on the frame (1) and is used to drive the pipe plate (31) to move up and down; The lifting assembly (32) includes: A lifting gear (33) is mounted on a worm gear (27); The lifting rack (34) is vertically slidably mounted on the frame (1) and meshes with the lifting gear (33). The connecting plate (31) is mounted on the top of the lifting rack (34). A transmission gear (29) is rotatably mounted on the frame (1). The transmission gear (29) meshes with the lifting gear (33). The transmission gear (29) and the lifting rack (34) are located on both sides of the lifting gear (33). The rotating shaft (28) is mounted on the transmission gear (29) and connected to the first drive rod (21).

2. The fixing device for seamless welding of boiler pipes according to claim 1, characterized in that: The fixing strap (14) is a fixing strap (14) made of a smooth, flexible material.

3. The fixing device for seamless welding of boiler pipes according to claim 1, characterized in that: The first fixing half ring (12) and the second fixing half ring (13) are respectively provided with a first fixing clip (18) and a second fixing clip (19), which clamp and fix the two ends of the fixing band (14) respectively.

4. The fixing device for seamless welding of boiler pipes according to claim 1, characterized in that: The frame (1) is horizontally slidably mounted with a first moving block (16) and a second moving block (17). The first fixed half ring (12) is disposed on the first moving block (16) and the first fixed half ring (12) is rotatably disposed on the second moving block (17). The frame (1) is provided with a moving component (4), which is used to control the first moving block (16) and the second moving block (17) to move closer to or further away from each other.

5. The fixing device for seamless welding of boiler pipes according to claim 4, characterized in that: The moving component (4) includes: The movable lead screw (41) is rotatably mounted on the frame (1). The movable lead screw (41) has two threaded sections with opposite spiral lines from the middle to both ends. The movable lead screw (41) is threadedly connected to the first movable block (16) and the second movable block (17). The first movable block (16) and the second movable block (17) are located on the two threaded sections with opposite spiral lines, respectively. A movable motor (42) is mounted on a frame (1) and its output shaft is connected to a movable lead screw (41).

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