A butt joint device for pressure vessel welding

Abstract

This invention relates to the field of pressure vessel welding, and provides a welding device for pressure vessels, including a welding shell. A control panel is located on the front side of the welding shell, and a discharge trough is formed at the bottom of the welding shell. A collecting shell is slidably connected to the bottom front side of the welding shell. A sliding plate is slidably connected to the bottom inner wall of the welding shell. A second welding cylinder is fixedly connected to the left side of the sliding plate. A rotating disk is rotatably connected to the left side of the inner wall of the welding shell, and a first welding cylinder is fixedly connected to the right side of the rotating disk. Two pulleys are rotatably connected to the left side of the inner wall of the welding shell, and the outer walls of the two pulleys are connected by a belt strip. The inner wall of the welding shell is slidably connected to the outer wall of the belt strip. Through the movement of the connecting blocks, the teeth mesh with the toothed ring, causing the toothed ring to rotate. The rotation of the toothed ring drives the rotating disk to rotate, which in turn drives the first welding cylinder to rotate, thus rotating the pressure vessel. This facilitates welding of other parts of the pressure vessel by the worker.

Description

Technical Field

[0001] This invention relates to the field of pressure vessel welding, specifically to a butt welding device for pressure vessel welding. Background Technology

[0002] Pressure vessels are sealed containers that withstand gas or liquid pressure internally or externally and have high safety requirements. They primarily serve in production processes involving reactions, heat transfer, and mass transfer, or for storing and transporting gases or liquefied gases under pressure. Their applications are wide-ranging, covering petroleum, machinery, chemical, energy, scientific research, and defense industries, and they also play a vital role in civilian sectors such as natural gas or liquefied gas storage tanks and heat exchangers. Pressure vessels are mainly cylindrical, with a few being spherical or other shapes. They typically consist of a body (including shell, heads, nozzles, seals, etc.), non-pressure-bearing components (such as supports), safety accessories, and instruments. Due to the large pressure difference between their internal and external surfaces and the potential for containing toxic, hazardous, flammable, or explosive substances, they pose a potential hazard and are therefore subject to strict standards control. Design must strictly adhere to relevant design standards and guidelines, and during use and operation, sufficient attention must be paid to potential unforeseen circumstances to prevent safety accidents caused by improper operation.

[0003] While existing docking devices can achieve precise alignment after pressure vessel docking is completed, they present significant drawbacks in subsequent welding processes. Due to the structural characteristics of pressure vessels and the design limitations of the docking devices, workers face numerous difficulties during welding operations. In particular, the confined space at the bottom of the vessel restricts worker movement, limiting their operational posture and hindering the flexible use of welding tools. This not only reduces welding efficiency but also increases the difficulty of welding quality control. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a welding device for pressure vessels, which solves the problem of inconvenient welding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding device for pressure vessels, comprising a welding shell, a control panel on the front side of the welding shell, a discharge trough at the bottom of the welding shell, a collecting shell slidably connected to the bottom front side of the welding shell, a sliding plate slidably connected to the bottom inner wall of the welding shell, a second welding cylinder fixedly connected to the left side of the sliding plate, a rotating disk rotatably connected to the left side of the inner wall of the welding shell, a first welding cylinder fixedly connected to the right side of the rotating disk, two pulleys rotatably connected to the left side of the inner wall of the welding shell, the outer walls of the two pulleys being connected by a belt strip, the inner wall of the welding shell being slidably connected to the outer wall of the belt strip, and a sliding connection on the left side of the inner wall of the welding shell. A cleaning brush is inserted into the left side of a sliding plate on its right side. The inner wall of the cleaning brush is connected to the right side of a belt via a reciprocating assembly to allow the cleaning brush to slide back and forth. A drive rod is rotatably connected to the left side of the inner wall of the docking shell. The left end of the drive rod is connected to the left side of the rear pulley and the outer wall of the rotating disk via a transmission assembly to allow the rotating disk and pulley to rotate. A connecting plate is slidably connected to the inner wall of the drive rod. A grinding wheel is inserted into the right side of the outer wall of the connecting plate. A limit block is inserted into the inner wall of the connecting plate. A drive disk is fixedly connected to the right side of the limit block. The inner wall of the limit block is connected to the inner wall of the connecting plate via a limit assembly to limit the limit block. The left side of the drive disk abuts against the right side of the grinding wheel.

[0006] Preferably, the reciprocating assembly includes a connecting shell rotatably connected to the right side of the belt strip, a connecting block slidably connected to the inner wall of the connecting shell, the left and right sides of the connecting block being slidably connected to the left and right sides of the inner wall of the cleaning brush, a limiting block rotatably connected to the right side of the connecting shell, and the outer wall of the limiting block being inserted into the left side of the slide plate.

[0007] Preferably, the transmission assembly includes a first connecting rod fixedly connected to the left end of the drive rod, a second connecting rod fixedly connected to the left end of the rear pulley, a connecting block rotatably connected to the left side of the second connecting rod, and the right side of the connecting block rotatably connected to the left side of the first connecting rod.

[0008] Preferably, a toothed ring is fixedly connected to the outer wall of the rotating disk, and teeth are fixedly connected to the top end of the first connecting rod, with the outer wall of the toothed ring meshing with the front side of the teeth.

[0009] Preferably, the limiting component includes a limiting rotating block rotatably connected to the inner wall of the limiting insert, the right side of the limiting rotating block abutting against the right side of the outer wall of the connecting plate, and a worm gear fixedly connected to the right side of the limiting rotating block.

[0010] Preferably, a worm gear is rotatably connected to the inner wall of the drive disc, and the outer wall of the worm gear meshes with the outer wall of the worm wheel.

[0011] Preferably, an adjustment knob is rotatably connected to the bottom of the drive disc, and the bottom end of the worm gear is fixedly connected to the top end of the adjustment knob.

[0012] Preferably, a servo motor is fixedly connected to the rear side of the inner wall of the docking shell, and the left end of the drive disk is fixedly connected to the drive end of the servo motor.

[0013] Preferably, two electric actuators are fixedly connected to the right side of the inner wall of the docking shell, and the right side of the slide plate is fixedly connected to the drive end of the electric actuators.

[0014] Preferably, the inner wall of the second docking cylinder is rotatably connected with a plurality of ball bearings.

[0015] Working principle: When starting work, the pressure vessel is inserted into the first and second docking cylinders. The electric actuator is activated through the control panel to push the slide plate, which in turn moves the second docking cylinder to align the two pressure vessels for welding. During the welding process, the servo motor is activated through the control panel. The servo motor drives the drive plate to rotate, which in turn drives the limit block to rotate the grinding wheel. This grinds burrs, flash, and rolled edges on the joints of the pressure vessels, thereby improving the subsequent welding quality. Furthermore, during the resetting process of each component after welding, the grinding wheel can also grind the weld seam to enhance its aesthetics.

[0016] Simultaneously, the drive disc rotates the connecting plate, causing the drive rod to rotate. The rotation of the drive rod causes the first connecting rod to rotate, which in turn pulls the connecting block to move. The movement of the connecting block causes the second connecting rod to rotate, causing the rear pulley to rotate. The rotation of the pulley causes the belt to move, which in turn causes the connecting housing to slide. The sliding of the connecting housing causes the connecting block to slide, allowing the cleaning brush to reciprocate and clean the debris generated during the polishing process. When the connecting housing slides to the top of the belt, the connecting housing rotates on the belt. Since the cleaning brush slides on the left side of the slide plate, it does not affect the movement.

[0017] While the connecting block moves, it drives the teeth to mesh with the toothed ring, causing the toothed ring to rotate. The rotation of the toothed ring drives the rotating disk to rotate, which in turn drives the first connecting cylinder to rotate, thus rotating the pressure vessel. This facilitates welding of other parts of the pressure vessel by workers and also allows the grinding wheel to grind burrs, flash, and rolled edges on other joints of the pressure vessel, thereby improving the subsequent welding quality. Furthermore, during the resetting process of each component after welding, the grinding wheel can also grind the weld seam to increase its aesthetics.

[0018] When the grinding wheel needs to be removed for replacement, turn the adjustment knob to rotate the worm gear. The rotation of the worm gear meshes with the worm wheel, causing the worm wheel to rotate. The rotation of the worm wheel drives the limit block to retract into the inner wall of the limit insert, releasing the limit block from the inner wall of the drive disc. Slide the drive disc to remove the grinding wheel for replacement.

[0019] This invention provides a butt welding device for pressure vessels. It has the following advantages:

[0020] 1. This invention uses the movement of connecting blocks to drive the teeth and toothed ring to mesh, causing the toothed ring to rotate. The rotation of the toothed ring drives the rotation of the rotating disk, which in turn drives the first docking cylinder to rotate, thus rotating the pressure vessel. This facilitates welding of other parts of the pressure vessel by workers and also allows the grinding wheel to grind burrs, flash, and rolled edges on other joints of the pressure vessel, thereby improving the subsequent welding quality. Furthermore, during the resetting process of each component after welding, the grinding wheel can also grind the weld seam, increasing its aesthetics.

[0021] 2. This invention starts the servo motor through the control panel. The servo motor drives the drive disk to rotate. The rotation of the drive disk drives the limit block to rotate the grinding wheel, which grinds the burrs, flash, and rolled edges of the pressure vessel joint, thereby improving the subsequent welding quality. In addition, during the reset process of each component after welding, the grinding wheel can also grind the weld seam to increase the aesthetics.

[0022] 3. In this invention, the drive disc drives the connecting plate to rotate, which in turn drives the drive rod to rotate. The rotation of the drive rod drives the first connecting rod to rotate, which in turn drives the connecting block to move. The movement of the connecting block drives the second connecting rod to rotate, which in turn drives the rear pulley to rotate. The rotation of the pulley drives the belt to move, which in turn drives the connecting shell to slide. The sliding of the connecting shell drives the connecting block to slide, which in turn drives the cleaning brush to slide and reciprocate to clean the waste generated during the grinding process. The waste generated during grinding is discharged from the discharge chute and falls into the collection shell.

[0023] 4. In this invention, the worm is rotated by turning the adjustment knob. The rotation of the worm meshes with the worm wheel, causing the worm wheel to rotate. The rotation of the worm wheel drives the limiting block to retract into the inner wall of the limiting insert, releasing the limiting block from the inner wall of the drive disc. The sliding drive disc allows the grinding wheel to be quickly removed and replaced. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a schematic diagram of the second docking cylinder of the present invention;

[0026] Figure 3 This is a schematic diagram of the servo motor of the present invention;

[0027] Figure 4 This is a schematic diagram of the ball bearing of the present invention;

[0028] Figure 5 This is a schematic diagram of the connecting blocks of the present invention;

[0029] Figure 6 This is a schematic diagram of the belt strip of the present invention;

[0030] Figure 7 This is a schematic diagram of the worm gear of the present invention;

[0031] Figure 8 This is a schematic diagram of the limiting rotating block of the present invention;

[0032] Figure 9 This is a schematic diagram of the connecting block of the present invention;

[0033] Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point A in the middle.

[0034] The components are as follows: 1. Docking shell; 2. Slide plate; 3. First docking cylinder; 4. Second docking cylinder; 5. Electric actuator; 6. Servo motor; 7. Cleaning brush; 8. Connecting shell; 9. Collecting shell; 10. Connecting block; 11. Drive rod; 12. Connecting plate; 13. Drive disk; 14. Grinding wheel; 15. Ball bearing; 16. Limiting block; 17. Rotary disk; 18. Pulley; 19. Belt strip; 20. First connecting rod; 21. Second connecting rod; 22. Connecting block; 23. Gear; 24. Gear ring; 25. Worm gear; 26. Worm; 27. Adjustment knob; 28. Limiting insert; 29. ​​Limiting rotating block; 30. Control panel. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example:

[0037] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a docking device for welding pressure vessels, including a docking shell 1. A control panel 30 is provided on the front side of the docking shell 1. The control panel 30 is used to activate electric actuators 5 and servo motors 6. A discharge groove is provided at the bottom of the docking shell 1 to discharge waste generated during grinding. A collection shell 9 is slidably connected to the bottom front side of the docking shell 1 to collect waste generated during grinding. A sliding plate 2 is slidably connected to the bottom inner wall of the docking shell 1. Two electric actuators 5 are fixedly connected to the right side of the inner wall of the docking shell 1. The right side of the sliding plate 2 is fixedly connected to the drive end of the electric actuators 5, and the electric actuators 5 push the sliding plate 2 to slide. A second docking cylinder 4 is fixedly connected to the left side of the sliding plate 2. The sliding plate 2 drives the second docking cylinder 4 to align the two pressure vessels. Please refer to the appendix. Figure 4The inner wall of the second docking cylinder 4 is rotatably connected to multiple ball bearings 15. When the first docking cylinder 3 rotates, causing the pressure vessel to rotate, the pressure vessel can also rotate inside the second docking cylinder 4. A rotating disk 17 is rotatably connected to the left side of the inner wall of the docking shell 1, and the first docking cylinder 3 is fixedly connected to the right side of the rotating disk 17. The rotation of the rotating disk 17 causes the first docking cylinder 3 to rotate, which in turn causes the pressure vessel to rotate. Please refer to the appendix. Figure 6 Two pulleys 18 are rotatably connected to the left side of the inner wall of the docking shell 1. The outer walls of the two pulleys 18 are connected by a belt strip 19. The rotation of the pulleys 18 drives the belt strip 19 to move. The inner wall of the docking shell 1 is slidably connected to the outer wall of the belt strip 19. Please refer to the appendix. Figure 1 Appendix Figure 9 and attached Figure 10 A cleaning brush 7 is slidably connected to the left side of the inner wall of the docking shell 1. The right side of the cleaning brush 7 is inserted into the left side of the slide plate 2. A connecting shell 8 is rotatably connected to the right side of the belt strip 19. The movement of the belt strip 19 drives the connecting shell 8 to slide. A connecting block 10 is slidably connected to the inner wall of the connecting shell 8. The left and right sides of the connecting block 10 are slidably connected to the left and right sides of the inner wall of the cleaning brush 7. When the connecting shell 8 slides to the bottom side of the belt strip 19, the connecting block 10 slides upward. A limiting block 16 is rotatably connected to the right side of the connecting shell 8. The outer wall of the limiting block 16 is inserted into the left side of the slide plate 2 to support the other side of the connecting shell 8. When the connecting shell 8 slides to the top side of the belt strip 19, it is used to make the connecting shell 8 rotate on the belt strip 19. Since the cleaning brush 7 slides on the left side of the slide plate 2, it does not affect the movement.

[0038] Please see the appendix Figure 5 and attached Figure 6 A drive rod 11 is rotatably connected to the left side of the inner wall of the docking shell 1. A first connecting rod 20 is fixedly connected to the left end of the drive rod 11. A second connecting rod 21 is fixedly connected to the left end of the rear pulley 18. A connecting block 22 is rotatably connected to the left side of the second connecting rod 21. The right side of the connecting block 22 is rotatably connected to the left side of the first connecting rod 20. The rotation of the drive rod 11 drives the first connecting rod 20 to rotate. The rotation of the first connecting rod 20 pulls the connecting block 22 to move. The movement of the connecting block 22 drives the second connecting rod 21 to rotate, causing the rear pulley 18 to rotate. A toothed ring 24 is fixedly connected to the outer wall of the rotating disk 17. A tooth 23 is fixedly connected to the top of the first connecting rod 20. The outer wall of the toothed ring 24 meshes with the front side of the tooth 23. When the connecting block 22 moves, the connecting block 22 drives the tooth 23 to mesh with the toothed ring 24, causing the toothed ring 24 to rotate. The rotation of the toothed ring 24 drives the rotating disk 17 to rotate.

[0039] Please see the appendix Figure 5 - Appendix Figure 7A connecting plate 12 is slidably connected to the inner wall of the drive rod 11. A grinding wheel 14 is inserted into the right side of the outer wall of the connecting plate 12 to grind burrs, flash, and rolled edges on the joints of the pressure vessel, thereby improving the subsequent welding quality. Furthermore, during the resetting process of each component after welding, the grinding wheel can also grind the weld seam, increasing its aesthetic appeal. A limit block 28 is inserted into the inner wall of the connecting plate 12. A drive disc 13 is fixedly connected to the right side of the limit block 28. A limit rotating block 29 is rotatably connected to the inner wall of the limit block 28. The right side of the limit rotating block 29 abuts against the right side of the outer wall of the connecting plate 12, limiting the inner wall of the drive disc 13. A worm gear 25 is fixedly connected to the right side, and a worm 26 is rotatably connected to the inner wall of the drive disc 13. The outer wall of the worm 26 meshes with the outer wall of the worm gear 25. Rotation of the worm 26 meshes with the worm gear 25, causing the worm gear 25 to rotate. The rotation of the worm gear 25 drives the limiting block 29 to rotate. An adjustment knob 27 is rotatably connected to the bottom of the drive disc 13. The bottom end of the worm 26 is fixedly connected to the top end of the adjustment knob 27. Rotation of the adjustment knob 27 causes the worm 26 to rotate. The left side of the drive disc 13 abuts against the right side of the grinding wheel 14, limiting the right side of the grinding wheel 14. Rotation of the drive disc 13 drives the limiting block 28 to rotate the grinding wheel 14. Please refer to the appendix. Figure 3 A servo motor 6 is fixedly connected to the rear side of the inner wall of the docking shell 1. The left end of the drive disk 13 is fixedly connected to the drive end of the servo motor 6. The servo motor 6 drives the drive disk 13 to rotate. The rotation of the drive disk 13 drives the limit block 28 to rotate the grinding wheel 14.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A butt joining device for welding a pressure vessel, characterized by, The assembly includes a docking shell (1), a control panel (30) on the front side of the docking shell (1), a discharge trough at the bottom of the docking shell (1), a collection shell (9) slidably connected to the bottom front side of the docking shell (1), a sliding plate (2) slidably connected to the bottom inner wall of the docking shell (1), a second docking cylinder (4) fixedly connected to the left side of the sliding plate (2), a rotating disk (17) rotatably connected to the left side of the inner wall of the docking shell (1), a first docking cylinder (3) fixedly connected to the right side of the rotating disk (17), two pulleys (18) rotatably connected to the left side of the inner wall of the docking shell (1), the outer walls of the two pulleys (18) being connected by a belt strip (19), the inner wall of the docking shell (1) slidably connected to the outer wall of the belt strip (19), a cleaning brush (7) slidably connected to the left side of the inner wall of the docking shell (1), the right side of the cleaning brush (7) being inserted into the left side of the sliding plate (2), and the cleaning brush... (7) The inner wall is connected to the right side of the belt (19) via a reciprocating assembly to make the cleaning brush (7) slide back and forth. The left side of the inner wall of the docking shell (1) is rotatably connected to a drive rod (11). The left end of the drive rod (11) is connected to the left side of the rear pulley (18) and the outer wall of the rotating disk (17) via a transmission assembly to make the rotating disk (17) and the pulley (18) rotate. The inner wall of the drive rod (11) is slidably connected to a connecting plate (12). The right side of the outer wall of the connecting plate (12) is inserted with a grinding wheel (14). The inner wall of the connecting plate (12) is inserted with a limiting block (28). The right side of the limiting block (28) is fixedly connected to a drive disk (13). The inner wall of the limiting block (28) is connected to the inner wall of the connecting plate (12) via a limiting assembly to limit the limiting block (28). The left side of the drive disk (13) abuts against the right side of the grinding wheel (14).

2. The butt welding device for pressure vessels according to claim 1, characterized in that, The reciprocating assembly includes a connecting shell (8) rotatably connected to the right side of the belt (19). A connecting block (10) is slidably connected to the inner wall of the connecting shell (8). The left and right sides of the connecting block (10) are slidably connected to the left and right sides of the inner wall of the cleaning brush (7). A limiting block (16) is rotatably connected to the right side of the connecting shell (8). The outer wall of the limiting block (16) is inserted into the left side of the slide plate (2).

3. The butt welding device for pressure vessels according to claim 1, characterized in that, The transmission assembly includes a first connecting rod (20) fixedly connected to the left end of the drive rod (11), a second connecting rod (21) fixedly connected to the left end of the rear pulley (18), a connecting block (22) rotatably connected to the left side of the second connecting rod (21), and the right side of the connecting block (22) rotatably connected to the left side of the first connecting rod (20).

4. The butt welding device for pressure vessels according to claim 3, characterized in that, A toothed ring (24) is fixedly connected to the outer wall of the rotating disk (17), and a tooth (23) is fixedly connected to the top of the first connecting rod (20). The outer wall of the toothed ring (24) meshes with the front side of the tooth (23).

5. The butt welding device for pressure vessels according to claim 1, characterized in that, The limiting component includes a limiting rotating block (29) rotatably connected to the inner wall of the limiting insert (28). The right side of the limiting rotating block (29) abuts against the right side of the outer wall of the connecting plate (12). A worm gear (25) is fixedly connected to the right side of the limiting rotating block (29).

6. The butt welding device for pressure vessels according to claim 5, characterized in that, The inner wall of the drive disk (13) is rotatably connected to a worm (26), and the outer wall of the worm (26) meshes with the outer wall of the worm wheel (25).

7. A butt welding device for pressure vessels according to claim 6, characterized in that, The bottom of the drive disc (13) is rotatably connected to an adjustment knob (27), and the bottom end of the worm gear (26) is fixedly connected to the top end of the adjustment knob (27).

8. The butt welding device for pressure vessels according to claim 1, characterized in that, A servo motor (6) is fixedly connected to the rear side of the inner wall of the docking shell (1), and the left end of the drive disk (13) is fixedly connected to the drive end of the servo motor (6).

9. A butt welding device for pressure vessels according to claim 1, characterized in that, Two electric push rods (5) are fixedly connected to the right side of the inner wall of the docking shell (1), and the right side of the sliding plate (2) is fixedly connected to the driving end of the electric push rods (5).

10. A butt welding device for pressure vessels according to claim 1, characterized in that, The inner wall of the second docking cylinder (4) is rotatably connected with multiple ball bearings (15).

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