Hydraulic engineering pipeline butt welding equipment

Abstract

This invention discloses a welding device for water conservancy engineering pipelines, relating to the field of welding technology. Specifically, it includes two sets of support rings, coaxially fixed by connecting ribs. Each set of support rings has a support section on one side, with a welding section on one side of one set of support rings. The welding section includes a slide, a welding torch, a V-groove grinding wheel, and a grinding wheel. The slide is movably connected to the side wall of the support rings in a circular motion. The welding torch, V-groove grinding wheel, and grinding wheel are all located inside the slide. This invention, by configuring the welding section as a combination of a welding torch, a V-groove grinding wheel, and a grinding wheel, utilizes the grinding ability of the V-groove grinding wheel to clean the weld seam and form a V-shaped groove, increasing the contact surface for subsequent welding and ensuring welding quality. Simultaneously, the grinding wheel smooths the weld seam after welding, increasing aesthetics and allowing for timely exposure and treatment of welding defects.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a welding equipment for butt welding of pipelines in water conservancy projects. Background Technology

[0002] When laying pipelines in water conservancy projects, the pipelines are first supported by pipeline support devices, and then the joints of the pipelines are welded.

[0003] A search revealed a Chinese patent publication number CN 117983965 B, which discloses a welding device for water conservancy construction pipelines. The device includes a base plate, which is a rectangular metal plate that supports the entire welding device. Four bases are fixedly connected to the upper side of the base plate. Threaded rods are rotatably connected inside each base. Threaded blocks are threadedly connected to the outer side of each threaded rod. A fixing plate is fixedly connected to the upper side of each threaded block. One side of each threaded rod passes through the base and is fixedly connected to a pulley. A belt is fitted between two adjacent pulleys.

[0004] The aforementioned patent has the following shortcomings: it directly welds the pipes, but because burrs or debris may remain at the weld seam during transportation and docking, these debris will directly affect the welding quality, leading to defects such as incomplete welds and empty welds.

[0005] Therefore, this invention proposes a welding device for connecting water conservancy engineering pipelines. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding device for water conservancy engineering pipelines.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A welding device for connecting water conservancy engineering pipelines includes two sets of support rings. The two sets of support rings are coaxially fixed by connecting ribs, and each set of support rings has a support part on one side, and one set of support rings has a welding part on one side. The welding section includes a slide, a welding torch, a V-groove grinding wheel, and a grinding wheel. The slide is connected to the side wall of the support ring in a circular motion. The welding torch, the V-groove grinding wheel, and the grinding wheel are all located inside the slide. Along the circular motion trajectory of the slide, the V-groove grinding wheel is located upstream, and the grinding wheel is located downstream. The V-groove grinding wheel and the grinding wheel can be driven to rotate at high speed.

[0008] Preferably, the outer side wall of the slide is fixed with telescopic rod one, telescopic rod two and telescopic rod three respectively. The telescopic end of the telescopic rod three is fixed to the side wall of the welding gun by bolts. The telescopic ends of the telescopic rod one and the telescopic rod two are respectively fixed with movable frame one and movable frame two. The V-groove grinding wheel is rotatably connected to the inner side of movable frame one through a wheel axle. The grinding wheel is rotatably connected to the inner side of movable frame two through a wheel axle.

[0009] Furthermore, a dual-axis motor is fixed to one side wall of the carriage by bolts, and a traveling roller is fixed to one of the output shafts of the dual-axis motor. The traveling roller rolls against the outer wall of the support ring.

[0010] Based on the aforementioned scheme: one side of each of the two axles is respectively connected to a speed-increasing gear set one and a speed-increasing gear set two, and the speed-increasing gear set one, the speed-increasing gear set two, and the other output shaft of the dual-shaft motor are connected through a belt / chain transmission assembly with a tensioning pulley.

[0011] A preferred embodiment of the aforementioned scheme is that the support portion includes a plurality of limiting arms that are slidably connected radially to the support ring in a circular array, and a driving component for sliding the limiting arms, wherein the inner end of the limiting arm is provided with a limiting head.

[0012] As a further aspect of the present invention: the limiting head is a limiting wheel, which is movably disposed at the inner end of the limiting head.

[0013] Meanwhile, the driving component includes a driving ring, a vortex groove, and a vortex protrusion. The driving ring is rotatably connected to the outer circumferential wall of the support ring, the vortex protrusion is fixed to one side of the driving ring, the vortex groove is opened on the back of the limiting arm, and the vortex groove and the vortex protrusion are movably engaged.

[0014] As a preferred embodiment of the present invention, the driving component further includes an electric motor, which is fixed to the outer wall of the support ring by bolts, and the output shaft of the electric motor is engaged with the outer circumferential wall of the electric motor through gear transmission.

[0015] Meanwhile, both sides of the limiting wheel are rotatably connected to sliders via support shafts. The sliders are slidably connected to the inner wall of the limiting arm, and the inner wall of the limiting arm is fixed with a spring plate that provides elastic support for the sliders.

[0016] As a preferred embodiment of the present invention: a toothed wheel is fixed to the outer wall of the support shaft, and a toothed seat that mates with the toothed wheel is fixed to the inner wall of the limiting arm.

[0017] The beneficial effects of this invention are as follows: 1. This invention sets the welding part as a combination structure of a welding torch, a "V" groove grinding wheel and a grinding wheel. On the one hand, the grinding function of the "V" groove grinding wheel can clean the weld, and on the other hand, it can also form a "V" groove to increase the contact surface for subsequent welding and ensure welding quality. At the same time, the grinding wheel can grind the weld smooth after welding, which increases the aesthetics and also allows welding defects to be exposed and dealt with in a timely manner.

[0018] 2. This invention, through targeted design of the welding part and optimized layout of its movement, on the one hand, utilizes a single dual-axis motor to simultaneously drive the circular trajectory movement of the carriage and the grinding and polishing movement of the "V" groove grinding wheel and abrasive wheel; on the other hand, the setting of telescopic rod one, telescopic rod two, and telescopic rod three can also make targeted adjustments to the grinding depth and welding height.

[0019] 3. This invention, by setting up a support part, sets up a circular array of multi-point limiting parts, and at the same time, with the design of the driving component, enables multiple limiting arms to move synchronously, thereby achieving concentric limiting and ensuring the concentricity of the two pipes during welding, increasing the welding quality. In addition, by setting up limiting wheels, after welding is completed at one point on the pipe, the rolling of the limiting wheels can move the entire device along the axis of the pipe to perform the next welding, thus eliminating the need for frequent installation and disassembly of welding equipment and increasing welding efficiency.

[0020] 4. The present invention, by setting up components such as spring plate, slider, toothed wheel and toothed seat, can lock the limiting wheel in the welding state to prevent the device from moving due to the rolling of the limiting wheel, thus ensuring the welding position accuracy. On the other hand, whether the limiting wheel is locked or not depends solely on the torque of the electric motor, thus eliminating the need for a separate power source and saving on power arrangement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a hydraulic engineering pipeline butt welding device proposed in this invention; Figure 2 This is a schematic diagram of the welding section structure of a water conservancy engineering pipeline butt welding equipment proposed in this invention; Figure 3 This is a schematic diagram of the support structure of a hydraulic engineering pipeline butt welding device proposed in this invention; Figure 4 This is a schematic diagram of the limiting head structure of a hydraulic engineering pipeline butt welding equipment proposed in this invention; Figure 5 This invention provides a schematic diagram of the drive component structure for a hydraulic engineering pipeline butt welding device. Figure 1 ; Figure 6This invention provides a schematic diagram of the drive component structure for a hydraulic engineering pipeline butt welding device. Figure 2 .

[0022] In the diagram: 1. Support ring; 2. Connecting rib; 3. Welding part; 4. Support part; 5. Welding torch; 6. Dual-axis motor; 7. Traveling roller; 8. Slide; 9. Telescopic rod one; 10. Moving frame one; 11. Speed-increasing gear set one; 12. "V" groove grinding wheel; 13. Wheel axle; 14. Grinding wheel; 15. Moving frame two; 16. Speed-increasing gear set two; 17. Belt / chain drive assembly; 18. Tensioning wheel; 19. Telescopic rod two; 20. Telescopic rod three; 21. Drive component; 22. Limiting arm; 23. Limiting head; 24. Spring plate; 25. Slider; 26. Support shaft; 27. Limiting wheel; 28. Gear; 29. ​​Gear seat; 30. Drive ring; 31. Scroll groove; 32. Scroll protrusion; 33. Motor; 34. Gear. Detailed Implementation

[0023] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Example

[0025] A type of pipe butt welding equipment for water conservancy projects, such as Figures 1-6 As shown, it includes two sets of support rings 1, which are coaxially fixed by connecting ribs 2, and each set of support rings 1 has a support part 4 on one side, and one set of support rings 1 has a welding part 3 on one side.

[0026] The welding section 3 includes a slide 8, a welding torch 5, a V-groove grinding wheel 12, and a grinding wheel 14. The slide 8 is connected to the side wall of the support ring 1 in a circular motion. The welding torch 5, the V-groove grinding wheel 12, and the grinding wheel 14 are all located inside the slide 8. Along the circular motion trajectory of the slide 8, the V-groove grinding wheel 12 is located upstream, and the grinding wheel 14 is located downstream. The V-groove grinding wheel 12 and the grinding wheel 14 can be driven to rotate at high speed.

[0027] When using this device, the pipeline can be hoisted and connected using a hoisting device. After the connection is completed, the two sets of support rings 1 are located on both sides of the joint. After adjusting the welding position, the support part 4 on one side of the support ring 1 is used for center clamping. Then, the "V" groove grinding wheel 12 and the grinding wheel 14 are driven to rotate at high speed, and the slide 8 is also driven to move along a circular trajectory. During the movement, the "V" groove grinding wheel 12 grinds the weld seam, making the weld seam have a "V" shaped notch. Then, the welding torch 5 welds the notch. Finally, the grinding wheel 14 grinds the weld seam.

[0028] This device, by setting the welding part 3 as a combination structure of welding torch 5, "V" groove grinding wheel 12 and grinding wheel 14, can clean the weld by grinding with the "V" groove grinding wheel 12, and can also form "V" grooves to increase the contact surface of subsequent welding and ensure welding quality. At the same time, the grinding wheel 14 can grind the weld after welding to make it smooth, which increases the aesthetics and also allows welding defects to be exposed and dealt with in time.

[0029] The outer side wall of the slide 8 is fixed with telescopic rod 19, telescopic rod 29 and telescopic rod 30 respectively. The telescopic end of the telescopic rod 320 is fixed to the side wall of the welding gun 5 by bolts. The telescopic ends of the telescopic rod 19 and the telescopic rod 219 are respectively fixed with movable frame 10 and movable frame 25. The V-groove grinding wheel 12 is rotatably connected to the inner side of movable frame 10 through wheel axle 13. The grinding wheel 14 is rotatably connected to the inner side of movable frame 25 through wheel axle 13.

[0030] A dual-axis motor 6 is fixed to one side wall of the slide 8 by bolts. One of the output shafts of the dual-axis motor 6 is fixed to a traveling roller 7, which rolls against the outer wall of the support ring 1.

[0031] One side of each of the two axles 13 is respectively connected to a speed-increasing gear set 11 and a speed-increasing gear set 16. The speed-increasing gear set 11, the speed-increasing gear set 16 and the other output shaft of the dual-shaft motor 6 are connected to each other via a belt / chain drive assembly 17 with a tensioning pulley 18.

[0032] Specifically, the arrangement of the speed-increasing gear set 11 and the speed-increasing gear set 2 16 can use two gears, one large and one small. The small gear is fixed to the axle 13, and the large gear is rotatably connected to the moving frame 10 and the moving frame 2 15. Meanwhile, for the arrangement of the belt / chain drive assembly 17, the tensioning wheel 18 can be flexibly set on the outside of the slide 8, and then the output shaft of the dual-shaft motor 6, the two tensioning wheels 18 and the two large gears are driven by a chain or a drive belt.

[0033] When the dual-axis motor 6 starts, it can drive the traveling roller 7 to rotate, and the traveling roller 7 rolls along the outer wall of the support ring 1 to drive the carriage 8 to move in a circular trajectory. On the other hand, the dual-axis motor 6 can also drive the wheel axle 13 to rotate through the belt / chain drive assembly 17, thereby driving the "V" groove grinding wheel 12 and the grinding wheel 14 to rotate. At the same time, the extension and retraction of the first extension rod 9, the second extension rod 19, and the third extension rod 20 can adjust the grinding depth and welding position. On the other hand, the retraction of the first extension rod 9 in the later stage of grinding can prevent the weld from being ground again.

[0034] This device, through targeted design of the welding part 3 and optimized layout of its movement, can simultaneously drive the circular trajectory movement of the slide 8 and the grinding and polishing movement of the "V" groove grinding wheel 12 and the grinding wheel 14 by using a single dual-axis motor 6. On the other hand, the setting of telescopic rod 1 9, telescopic rod 2 19 and telescopic rod 3 20 can also make targeted adjustments to the grinding depth and welding height.

[0035] In this embodiment, the pipeline can be hoisted and connected using a hoisting device. After the connection is completed, the two sets of support rings 1 are located on both sides of the joint. After adjusting the welding position, the support part 4 on one side of the support ring 1 is used for center clamping. Then, the dual-axis motor 6 is started. When the dual-axis motor 6 is started, it can drive the traveling roller 7 to rotate. The traveling roller 7 rolls along the outer wall of the support ring 1, which drives the slide 8 to move in a circular trajectory. On the other hand, the start of the dual-axis motor 6 can also drive the wheel axle 13 to rotate through the belt / chain transmission assembly 17, thereby driving the "V" groove grinding wheel 12 and the grinding wheel 14 to rotate. At the same time, the extension and retraction of the first telescopic rod 9, the second telescopic rod 19, and the third telescopic rod 20 can adjust the grinding depth and welding position. On the other hand, the retraction of the first telescopic rod 9 in the later stage of grinding can prevent the weld from being ground again. Example

[0036] A type of pipe butt welding equipment for water conservancy projects, such as Figures 1-6 As shown, in order to solve the limiting problem, this embodiment makes the following improvements based on embodiment 1: the support part 4 includes a plurality of limiting arms 22 that are slidably connected to the radial direction of the support ring 1 in a circular array, and a driving member 21 for sliding the limiting arms 22. The inner end of the limiting arm 22 is provided with a limiting head 23.

[0037] The limiting head 23 is a limiting wheel 27, which is movably disposed at the inner end of the limiting head 23.

[0038] The driving component 21 includes a driving ring 30, a vortex groove 31, and a vortex protrusion 32. The driving ring 30 is rotatably connected to the outer circumferential wall of the support ring 1. The vortex protrusion 32 is fixed to one side of the driving ring 30. The vortex groove 31 is opened on the back of the limiting arm 22, and the vortex groove 31 and the vortex protrusion 32 are in movable cooperation.

[0039] The drive component 21 also includes a motor 33, which is fixed to the outer wall of the support ring 1 by bolts, and the output shaft of the motor 33 is driven by a gear 34 to the outer circumferential wall of the motor 33.

[0040] When clamping and limiting, the motor 33 can be started. The motor 33 drives the drive ring 30 to rotate through the gear 34. When the drive ring 30 rotates, it drives the vortex protrusion 32 to rotate. Thus, through the cooperation of the vortex protrusion 32 and the vortex groove 31, the limiting arm 22 is driven to slide until it slides to the limit wheel 27 contacting the pipe surface and maintaining a certain pressure to achieve the limiting.

[0041] This device, by setting up a support part 4, is configured as a circular array of multi-point limiting parts. At the same time, in conjunction with the design of the drive component 21, multiple limiting arms 22 move synchronously, thereby achieving centering limiting and ensuring the centering state of the two pipes during welding, thus increasing the welding quality. In addition, by setting up limiting wheels 27, after welding is completed at one point on the pipe, the rolling of the limiting wheels 27 can move the entire device along the axis of the pipe to perform the next welding, thus eliminating the need for frequent installation and disassembly of welding equipment and increasing welding efficiency.

[0042] Both sides of the limiting wheel 27 are rotatably connected to sliders 25 via support shafts 26. The sliders 25 are slidably connected to the inner wall of the limiting arm 22, and the inner wall of the limiting arm 22 is fixed with a spring plate 24 that provides elastic support for the sliders 25. The outer wall of the support shaft 26 is fixed with a toothed wheel 28, and the inner side wall of the limiting arm 22 is fixed with a toothed seat 29 that mates with the toothed wheel 28.

[0043] When the limiting wheel 27 contacts the outer wall of the pipe, it continues to drive the motor 33, which generates a large torque, thereby gradually increasing the pressure of the limiting wheel 27 on the pipe. The reaction force of the limiting wheel 27 is transmitted to the slider 25, which squeezes the spring plate 24 to deform it, thereby causing the slider 25 to slide along the limiting arm 22, so that the toothed wheel 28 contacts the toothed seat 29 and locks the limiting wheel 27.

[0044] In this embodiment, during clamping and limiting, the motor 33 can be started. The motor 33 drives the drive ring 30 to rotate via the gear 34. When the drive ring 30 rotates, it drives the volute protrusion 32 to rotate. Thus, through the cooperation between the volute protrusion 32 and the volute groove 31, the limiting arm 22 slides until it slides to the point where the limiting wheel 27 contacts the pipe surface. After the limiting wheel 27 contacts the outer wall of the pipe, the motor 33 continues to be driven, causing the motor 33 to generate a larger torque, thereby gradually increasing the pressure of the limiting wheel 27 on the pipe. The reaction force on the limiting wheel 27 is transmitted to the slider 25. The slider 25 presses the spring plate 24 to deform it, so that the slider 25 slides along the limiting arm 22, so that the toothed wheel 28 contacts the toothed seat 29 and locks the limiting wheel 27. After the welding is completed here, the control motor 33 removes part of the torque, so that the spring plate 24 rebounds and separates the toothed wheel 28 from the toothed seat 29. The limiting wheel 27 can rotate freely. At this time, the device can be moved along the pipeline axis by the rotation of the limiting wheel 27 until it moves to the next welding position.

[0045] This device, by setting up components such as spring plate 24, slider 25, toothed wheel 28 and toothed seat 29, can lock the limiting wheel 27 in the welding state to prevent the device from moving due to the rolling of the limiting wheel 27, thus ensuring the welding position accuracy. On the other hand, whether the limiting wheel 27 is locked or not depends solely on the torque of the motor 33, thus eliminating the need for a separate power source and saving on power arrangement.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A hydraulic engineering pipeline butt welding device, comprising two sets of support rings (1), characterized in that, The two sets of support rings (1) are coaxially fixed by connecting ribs (2), and each set of support rings (1) has a support part (4) on one side, and one set of support rings (1) has a welding part (3) on one side. The welding part (3) includes a slide (8), a welding torch (5), a "V" groove grinding wheel (12), and a grinding wheel (14). The slide (8) is connected to the side wall of the support ring (1) in a circular motion. The welding torch (5), the "V" groove grinding wheel (12), and the grinding wheel (14) are all located on the inner side of the slide (8). Along the circular motion trajectory of the slide (8), the "V" groove grinding wheel (12) is located upstream, and the grinding wheel (14) is located downstream. The "V" groove grinding wheel (12) and the grinding wheel (14) can be driven to rotate at high speed.

2. The hydraulic engineering pipeline butt welding equipment according to claim 1, characterized in that, The outer side wall of the slide (8) is fixed with telescopic rod one (9), telescopic rod two (19) and telescopic rod three (20). The telescopic end of the telescopic rod three (20) is fixed to the side wall of the welding gun (5) by bolts. The telescopic ends of the telescopic rod one (9) and the telescopic rod two (19) are respectively fixed with moving frame one (10) and moving frame two (15). The "V" groove grinding wheel (12) is rotatably connected to the inner side of moving frame one (10) through wheel axle (13). The grinding wheel (14) is rotatably connected to the inner side of moving frame two (15) through wheel axle (13).

3. The hydraulic engineering pipeline butt welding equipment according to claim 2, characterized in that, A dual-axis motor (6) is fixed to one side wall of the slide (8) by bolts. One of the output shafts of the dual-axis motor (6) is fixed to a traveling roller (7), which rolls against the outer wall of the support ring (1).

4. The hydraulic engineering pipeline butt welding equipment according to claim 3, characterized in that, One side of each of the two axles (13) is respectively connected to a speed-increasing gear set one (11) and a speed-increasing gear set two (16). The speed-increasing gear set one (11), the speed-increasing gear set two (16) and the other output shaft of the dual-shaft motor (6) are connected to each other via a belt / chain drive assembly (17) with a tensioning wheel (18).

5. The hydraulic engineering pipeline butt welding equipment according to claim 1, characterized in that, The support (4) includes a plurality of limiting arms (22) arranged in a circular array and slidably connected to the radial direction of the support ring (1) and a driving member (21) for sliding the limiting arms (22). The inner end of the limiting arm (22) is provided with a limiting head (23).

6. The hydraulic engineering pipeline butt welding equipment according to claim 5, characterized in that, The limiting head (23) is a limiting wheel (27), which is movably located at the inner end of the limiting head (23).

7. The hydraulic engineering pipeline butt welding equipment according to claim 5, characterized in that, The driving component (21) includes a driving ring (30), a vortex groove (31) and a vortex protrusion (32). The driving ring (30) is rotatably connected to the outer circumferential wall of the support ring (1). The vortex protrusion (32) is fixed to one side of the driving ring (30). The vortex groove (31) is opened on the back of the limiting arm (22), and the vortex groove (31) and the vortex protrusion (32) are in movable cooperation.

8. The hydraulic engineering pipeline butt welding equipment according to claim 5, characterized in that, The drive unit (21) also includes a motor (33), which is fixed to the outer wall of the support ring (1) by bolts, and the output shaft of the motor (33) is engaged with the outer circumferential wall of the motor (33) through gear (34).

9. A hydraulic engineering pipeline butt welding device according to claim 5, characterized in that, Both sides of the limiting wheel (27) are rotatably connected to sliders (25) via support shafts (26). The sliders (25) are slidably connected to the inner wall of the limiting arm (22), and the inner wall of the limiting arm (22) is fixed with a spring plate (24) that provides elastic support for the sliders (25).

10. A hydraulic engineering pipeline butt welding device according to claim 9, characterized in that, The outer wall of the support shaft (26) is fixed with a toothed wheel (28), and the inner wall of the limiting arm (22) is fixed with a toothed seat (29) that mates with the toothed wheel (28).

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