Welding equipment for pipeline maintenance and repair

Abstract

The utility model provides welding equipment for pipeline maintenance and repair, a repair cylinder is sleeved on a delivery pipe, a linear seam is arranged between the repair cylinder and the delivery pipe, the welding equipment for pipeline maintenance and repair comprises a straight rail, a driving mechanism, a three-axis displacement mechanism and a welder, the straight rail is matched with the linear seam, and the driving mechanism is arranged on the straight rail. The straight rail is installed on the periphery of the conveying pipe, the driving mechanism is installed on the straight rail in a sliding mode, the three-axis displacement mechanism is detachably installed on the straight rail, and the welding device is installed on the three-axis displacement mechanism. The welding device is only composed of the three-axis displacement mechanism and the welding device, a driving component on a large welding device in the prior art can be omitted, miniaturization and light weight of the welding device are achieved, the quick connecting part can be in quick butt joint with the straight rail, and quick response of maintenance and emergency repair can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline emergency repair, in particular to welding equipment for pipeline emergency repair. Background Art

[0002] In the existing oil and gas transportation, oil and natural gas need to be poured into the transmission pipe for transportation. Usually, the transmission span of the transmission pipe is long and the laying site of the transmission pipe is relatively remote. When laying the pipeline, a welding robot can be used to weld the pipeline, which can reduce the work intensity of the construction personnel to a certain extent. In the field of pipeline maintenance and repair, whether it is for the repair of the docking interface, B-type sleeve or plugging tee, the existing welding robot is heavy, and it is more difficult to transport it to the maintenance and repair site (especially the place that is not convenient for vehicles to travel or cannot be reached by vehicles), which hinders the rapid response of maintenance and repair. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a welding device for pipeline maintenance and repair in view of the deficiencies of the prior art.

[0004] The utility model provides a technical solution to the above-mentioned technical problems as follows: a welding device for pipeline emergency repair, wherein the emergency repair cylinder is sleeved on the conveying pipe, and a straight seam is arranged between the emergency repair cylinder and the conveying pipe. The welding device for pipeline emergency repair comprises: a straight rail, a driving mechanism, a three-axis displacement mechanism and a welder. The straight rail is a straight rail adapted to the straight seam, the straight rail is installed on the outer periphery of the conveying pipe, the driving mechanism is slidably installed on the straight rail, the three-axis displacement mechanism is detachably installed on the straight rail, and the welder is installed on the three-axis displacement mechanism.

[0005] The beneficial effects of adopting the technical solution of the utility model are as follows: the welding equipment is used to weld the straight seam formed between the repair tube and the conveying pipe, the welding equipment includes a three-axis displacement mechanism and a welder, the three-axis displacement mechanism is installed with the welder, and the three-axis displacement mechanism is driven to slide on the straight rail to drive the welder to weld the straight seam. By separating the straight rail that drives the welder to make a linear motion from other motion axis systems of the three-axis displacement mechanism, the three-axis displacement mechanism in the welding equipment can adjust the position of the welding end of the welder, thereby improving the effect of the welder welding the straight seam, so as to realize the high automation of the welder welding. The welding device is only composed of the three-axis displacement mechanism and the welder, and the driving components on the large welding device in the prior art can be omitted, so as to realize the miniaturization and lightweight of the welding device. When the conveying pipe needs to be repaired and the repair environment is inconvenient, the repair personnel can quickly carry and transport the welding device consisting of only the three-axis displacement mechanism and the welder, and the quick connection part can be quickly docked with the straight rail, so as to realize the rapid response of the repair.

[0006] Furthermore, the three-axis displacement mechanism is provided with a quick-connection portion for connecting with the straight rail, and the three-axis displacement mechanism is detachably mounted on the straight rail via the quick-connection portion.

[0007] The beneficial effect of adopting the above further technical solution is that the three-axis displacement mechanism is quickly connected with the straight rail through the quick connection part, which can be easily carried and disassembled during use, and meets the requirements of lightweight. The welding device is only composed of the three-axis displacement mechanism and the welder, which can omit the driving components on the large welding device in the prior art, and realize the miniaturization and lightweight of the welding device. When the conveying pipe needs to be repaired and the repair environment is inconvenient, the repair personnel can quickly transport the welding device consisting of only the three-axis displacement mechanism and the welder, and the quick connection part can be quickly connected with the straight rail, which can realize the rapid response of the repair.

[0008] Furthermore, the quick-connect portion is a column structure or a connecting platform, and the straight rail is provided with a clamp adapted to the column structure or a connecting piece adapted to the connecting platform.

[0009] The beneficial effect of adopting the above-mentioned further technical solution is that the quick-connect part can be a column structure or a connecting platform on the three-axis displacement mechanism. In the case of a column structure, a clamp that is clamped with the column structure can be provided in the straight rail. In the case of a connecting platform, the straight rail can be quickly connected to the connecting platform through multiple connecting parts such as screws and bolts.

[0010] Furthermore, the three-axis displacement mechanism includes: a box body, a transmission member, a Y-axis displacement assembly for driving the transmission member to telescopically move in the horizontal direction, a Z-axis displacement assembly for driving the transmission member to vertically move along the strip hole, and a welding angle displacement assembly for adjusting the welding angle of the welder. A strip hole is opened on one side of the box body along the height direction, the transmission member movably passes through the strip hole and the outer end is connected to the welder, the Y-axis displacement assembly and the Z-axis displacement assembly are both connected to the inner end of the transmission member, the Y-axis displacement assembly and the Z-axis displacement assembly are both arranged in the box body, and the welding angle displacement assembly is installed outside the box body and connected to the welder.

[0011] The beneficial effect of adopting the above further technical solution is: by separating the straight rail that drives the welder to perform linear motion from other motion axis systems of the three-axis displacement mechanism, the three-axis displacement mechanism that adjusts the position of the welder is directly and detachably arranged on the straight rail, which is convenient for disassembly and assembly, meets the requirements of lightweight, and can improve the stability of welding operation. When the three-axis displacement mechanism performs linear motion along the length direction of the straight rail, it can drive the welder to move together, thereby adjusting the position of the welder so that the welder can weld the linear seam. The three-axis displacement mechanism can adjust the position of the welding end on the welder, which is conducive to the welder to weld the linear seam more conveniently, so as to achieve highly automated welding. The Y-axis displacement assembly is connected to the inner end of the transmission member and is used to drive the transmission member to telescopically move in the horizontal direction. The Z-axis displacement assembly is used to drive the transmission member to move along the strip hole. The welding angle displacement assembly is used to adjust the inclination angle of the welder. Among them, the Y-axis displacement assembly and the Z-axis displacement assembly are arranged in the box body, and the box body plays the role of protecting the Y-axis displacement assembly and the Z-axis displacement assembly to prevent the Y-axis displacement assembly and the Z-axis displacement assembly from being damaged by external impact. The welding angle displacement assembly is installed outside the box body and connected to the welder, so as to adjust the angle and direction of the welding end of the welder. By coupling the three groups of adjustment components of the three-axis displacement mechanism inside and outside the box body, the volume is minimized and the overall weight is reduced while ensuring that the motion stroke remains unchanged.

[0012] Furthermore, the Y-axis displacement assembly includes: a first rotary drive member, a first rotary screw and a first slider, the first rotary screw is arranged in a horizontal direction and is rotationally driven connected to the first rotary drive member, the first slider is threadedly matched with the first rotary screw, and the inner end of the transmission member is connected to the first slider.

[0013] The beneficial effect of adopting the above-mentioned further technical solution is: when a straight seam needs to be welded, the first rotating screw can be driven axially by the first rotating driving member to make the first slider slide on the first rotating screw in the horizontal direction. Driven by the first slider, the transmission member extends outward or retracts from the strip hole in the horizontal direction to adjust the position of the welder in the horizontal direction.

[0014] Furthermore, the Z-axis displacement assembly includes: a second rotary drive member, a second rotary screw and a second slider, the second rotary screw is arranged along the height direction and is rotationally driven and connected to the second rotary drive member, the second slider is threadedly matched with the second rotary screw, and the inner end of the transmission member is connected to the second slider.

[0015] The beneficial effect of adopting the above-mentioned further technical solution is: if the position of the welder needs to be adjusted in the height direction, the second rotating screw can be driven to rotate axially by the second rotating driving member, so that the second slider slides on the second rotating screw in the height direction, so as to ensure that the transmission member moves in the strip hole in the height direction under the drive of the second slider, and finally the welder is adjusted to the optimal position for welding the straight seam.

[0016] Furthermore, the welding angle displacement assembly includes: an adjusting bracket, a worm gear reducer for driving the locking part to swing circumferentially, and a fourth rotating drive member for driving the worm gear reducer to rotate, one end of the adjusting bracket is connected to the outer end of the transmission member, and the other end of the adjusting bracket is provided with a locking part for clamping the welder along the circumferential direction, the worm gear reducer is arranged on the adjusting bracket and connected to the locking part, and the output shaft of the fourth rotating drive member is drivingly connected to the worm gear reducer; the adjusting bracket is sleeved on the outer periphery of the transmission member, and the adjusting bracket and the transmission member are detachably connected by an adjusting screw.

[0017] The beneficial effect of adopting the above further technical solution is that the output shaft of the fourth rotary drive member is connected to the worm gear reducer for driving the worm gear reducer to drive the locking part to swing circumferentially to adjust the inclination angle of the welder, so that the welder has a larger range of motion and can better approach the straight seam. The adjustment bracket and the transmission member are detachably connected by a manual adjustment screw, and the inclination angle of the adjustment bracket can be adjusted by the manual adjustment screw, so that the welder can better approach the straight seam and improve the welding effect.

[0018] Further, the driving mechanism includes a displacement assembly, a traveling gear and a third rotating driving member, the displacement assembly includes: a mounting plate and a plurality of guide wheels, the mounting plate is arranged parallel to the top wall surface of the straight rail, and the plurality of guide wheels are rotatably mounted on the mounting plate; grooves are provided on both sides of the straight rail along the length direction, and the plurality of guide wheels are arranged in parallel and spaced apart in the grooves; the traveling gear is rotatably mounted on the mounting plate, and the third rotating driving member is meshed with the straight rail; the third rotating driving member is mounted on the top of the mounting plate, and the third rotating driving member is coaxially driven and connected to the traveling gear.

[0019] The beneficial effect of adopting the above further technical solution is that grooves are formed on both sides of the straight rail along the length direction, and a plurality of guide wheels are arranged in parallel and spaced apart in the grooves to play a role in guiding the movement of the auxiliary mounting plate.

[0020] Furthermore, a support assembly is provided at the end of the straight rail, and the support assembly includes: a connecting plate and a magnetic suction cup, the connecting plate is installed on the side of the straight rail facing the conveying pipe, and the magnetic suction cup is installed at the bottom of the connecting plate and can be adsorbed on the outer peripheral wall of the conveying pipe.

[0021] The beneficial effect of adopting the above further technical solution is that the arrangement of the magnetic suction cup enables the welding device to be adsorbed on different positions on the conveying pipe along the circumference of the conveying pipe, thereby improving the adaptability of the welding device.

[0022] Furthermore, the welder is a welding gun, and the repair sleeve is a B-type sleeve.

[0023] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the structural schematic diagrams of the pipeline maintenance and emergency repair welding equipment provided in an embodiment of the utility model.

[0025] Figure 2 The second structural schematic diagram of the welding equipment for pipeline maintenance and emergency repair provided by the embodiment of the utility model.

[0026] Figure 3 The third structural schematic diagram of the welding equipment for pipeline maintenance and emergency repair provided by the embodiment of the utility model.

[0027] Figure 4 The fourth structural schematic diagram of the welding equipment for pipeline maintenance and repair provided by the embodiment of the utility model.

[0028] Figure 5 The fifth structural schematic diagram of the welding equipment for pipeline maintenance and emergency repair provided by the embodiment of the utility model.

[0029] Figure 6 The sixth structural schematic diagram of the welding equipment for pipeline maintenance and repair provided in the embodiment of the utility model.

[0030] Figure 7 The seventh structural schematic diagram of the welding equipment for pipeline maintenance and emergency repair provided by the embodiment of the utility model.

[0031] Explanation of the accompanying drawings: 1. Repair cylinder; 2. Conveying pipe; 3. Three-axis displacement mechanism; 4. Straight rail; 41. Groove; 5. Welder; 6. Box; 7. Transmission member; 8. First rotating drive member; 10. First rotating screw; 11. Second rotating drive member; 12. Second rotating screw; 13. Welding angle displacement assembly; 131. Adjustment bracket; 132. Locking part; 133. Worm gear reducer; 134. Fourth rotating drive member; 141. Mounting plate; 142. Guide wheel; 15. Driving mechanism; 151. Travel gear; 152. Third rotating drive member; 16. Support assembly; 161. Connecting plate; 162. Magnetic suction cup; 38. Quick connector. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figures 1 to 7 As shown, an embodiment of the utility model provides a welding device for pipeline emergency repair, wherein the repair cylinder 1 is sleeved on the conveying pipe 2, and a straight seam is provided between the repair cylinder 1 and the conveying pipe 2, and the welding device for pipeline emergency repair comprises: a straight rail 4, a driving mechanism 15, a three-axis displacement mechanism 3 and a welder 5, wherein the straight rail 4 is a straight rail adapted to the straight seam, and the straight rail 4 is installed on the outer periphery of the conveying pipe 2, the driving mechanism 15 is slidably installed on the straight rail 4, the three-axis displacement mechanism 3 is detachably installed on the straight rail 4, and the welder 5 is installed on the three-axis displacement mechanism 3.

[0034] The beneficial effects of adopting the technical solution of the utility model are as follows: the welding equipment is used to weld the straight seam formed between the repair tube and the conveying pipe, the welding equipment includes a three-axis displacement mechanism and a welder, the three-axis displacement mechanism is installed with the welder, and the three-axis displacement mechanism is driven to slide on the straight rail to drive the welder to weld the straight seam. By separating the straight rail that drives the welder to make a linear motion from other motion axis systems of the three-axis displacement mechanism, the three-axis displacement mechanism in the welding equipment can adjust the position of the welding end of the welder, thereby improving the effect of the welder welding the straight seam, so as to realize the high automation of the welder welding. The welding device is only composed of the three-axis displacement mechanism and the welder, and the driving components on the large welding device in the prior art can be omitted, so as to realize the miniaturization and lightweight of the welding device. When the conveying pipe needs to be repaired and the repair environment is inconvenient, the repair personnel can quickly carry and transport the welding device consisting of only the three-axis displacement mechanism and the welder, and the quick connection part can be quickly docked with the straight rail, so as to realize the rapid response of the repair.

[0035] in, Figure 5 and Figure 6 The left and right directions are the horizontal directions, and the up and down directions are the length directions.

[0036] The welding device provided in the embodiment of the utility model is used for welding the straight seam formed between the repair tube and the conveying pipe. The welding device includes a three-axis displacement mechanism 3 and a welder 5. The three-axis displacement mechanism is installed with the welder, and the three-axis displacement mechanism is driven to slide on the straight rail to drive the welder to weld the straight seam. The utility model separates the straight rail that drives the welder to make a linear motion from the other motion axis systems of the three-axis displacement mechanism, and the three-axis displacement mechanism is quickly connected to the straight rail through a quick connection part, so that it can be easily carried and disassembled during use, and meets the requirements of lightweight. In addition, because the three-axis displacement mechanism in the welding device of the utility model can adjust the position of the welding end of the welder, the effect of the welder welding the straight seam is improved, so as to realize the high automation of the welding of the welder.

[0037] The welding device in the utility model is composed of only a three-axis displacement mechanism and a welder, and the driving components (driving mechanism) on the large welding device in the prior art can be omitted, so as to realize the miniaturization and lightness of the welding device. When the conveying pipe needs to be repaired and the transportation in the repair environment is inconvenient, the repair personnel can quickly transport and convey the welding device composed of only a three-axis displacement mechanism and a welder, and the quick-connect part can be quickly connected with the straight rail, so as to realize a rapid response of the repair.

[0038] like Figures 1 to 7 As shown, further, the three-axis displacement mechanism 3 is provided with a quick-connection portion for connecting with the straight rail 4, and the three-axis displacement mechanism 3 is detachably mounted on the straight rail 4 through the quick-connection portion.

[0039] The beneficial effect of adopting the above further technical solution is that the three-axis displacement mechanism is quickly connected with the straight rail through the quick connection part, which can be easily carried and disassembled during use, and meets the requirements of lightweight. The welding device is only composed of the three-axis displacement mechanism and the welder, which can omit the driving components on the large welding device in the prior art, and realize the miniaturization and lightweight of the welding device. When the conveying pipe needs to be repaired and the repair environment is inconvenient, the repair personnel can quickly transport the welding device consisting of only the three-axis displacement mechanism and the welder, and the quick connection part can be quickly connected with the straight rail, which can realize the rapid response of the repair.

[0040] The quick-connect portion may be a quick connector 38 .

[0041] like Figures 1 to 7 As shown, further, the quick-connect part is a column structure or a connecting platform, and the straight rail 4 is provided with a clamp adapted to the column structure or a connecting piece adapted to the connecting platform.

[0042] The beneficial effect of adopting the above-mentioned further technical solution is that the quick-connect part can be a column structure or a connecting platform on the three-axis displacement mechanism. In the case of a column structure, a clamp that is clamped with the column structure can be provided in the straight rail. In the case of a connecting platform, the straight rail can be quickly connected to the connecting platform through multiple connecting parts such as screws and bolts.

[0043] like Figures 1 to 7 As shown, further, the three-axis displacement mechanism 3 includes: a box body 6, a transmission member 7, a Y-axis displacement component for driving the transmission member 7 to telescopically move in the horizontal direction, a Z-axis displacement component for driving the transmission member 7 to vertically move along the strip hole, and a welding angle displacement component 13 for adjusting the welding angle of the welder 5. A strip hole is opened on one side of the box body 6 along the height direction, the transmission member 7 movably passes through the strip hole and the outer end is connected to the welder 5, the Y-axis displacement component and the Z-axis displacement component are both connected to the inner end of the transmission member 7, the Y-axis displacement component and the Z-axis displacement component are both arranged in the box body 6, and the welding angle displacement component 13 is installed outside the box body 6 and connected to the welder 5.

[0044] The beneficial effect of adopting the above further technical solution is: by separating the straight rail that drives the welder to perform linear motion from other motion axis systems of the three-axis displacement mechanism, the three-axis displacement mechanism that adjusts the position of the welder is directly and detachably arranged on the straight rail, which is convenient for disassembly and assembly, meets the requirements of lightweight, and can improve the stability of welding operation. When the three-axis displacement mechanism performs linear motion along the length direction of the straight rail, it can drive the welder to move together, thereby adjusting the position of the welder so that the welder can weld the linear seam. The three-axis displacement mechanism can adjust the position of the welding end on the welder, which is conducive to the welder to weld the linear seam more conveniently, so as to achieve highly automated welding. The Y-axis displacement assembly is connected to the inner end of the transmission member and is used to drive the transmission member to telescopically move in the horizontal direction. The Z-axis displacement assembly is used to drive the transmission member to move along the strip hole. The welding angle displacement assembly is used to adjust the inclination angle of the welder. Among them, the Y-axis displacement assembly and the Z-axis displacement assembly are arranged in the box body, and the box body plays the role of protecting the Y-axis displacement assembly and the Z-axis displacement assembly to prevent the Y-axis displacement assembly and the Z-axis displacement assembly from being damaged by external impact. The welding angle displacement assembly is installed outside the box body and connected to the welder, so as to adjust the angle and direction of the welding end of the welder. By coupling the three groups of adjustment components of the three-axis displacement mechanism inside and outside the box body, the volume is minimized and the overall weight is reduced while ensuring that the motion stroke remains unchanged.

[0045] like Figures 1 to 7As shown, further, the Y-axis displacement assembly includes: a first rotary drive member 8, a first rotary screw 10 and a first slider, the first rotary screw 10 is arranged in a horizontal direction and is rotationally driven connected to the first rotary drive member 8, the first slider is threadedly matched with the first rotary screw 10, and the inner end of the transmission member 7 is connected to the first slider.

[0046] The beneficial effect of adopting the above-mentioned further technical solution is: when a straight seam needs to be welded, the first rotating screw can be driven axially by the first rotating driving member to make the first slider slide on the first rotating screw in the horizontal direction. Driven by the first slider, the transmission member extends outward or retracts from the strip hole in the horizontal direction to adjust the position of the welder in the horizontal direction.

[0047] like Figures 1 to 7 As shown, further, the Z-axis displacement assembly includes: a second rotary drive member 11, a second rotary screw 12 and a second slider, the second rotary screw 12 is arranged along the height direction and is rotationally driven connected to the second rotary drive member 11, the second slider is threadedly matched with the second rotary screw 12, and the inner end of the transmission member 7 is connected to the second slider.

[0048] The beneficial effect of adopting the above-mentioned further technical solution is: if the position of the welder needs to be adjusted in the height direction, the second rotating screw can be driven to rotate axially by the second rotating driving member, so that the second slider slides on the second rotating screw in the height direction, so as to ensure that the transmission member moves in the strip hole in the height direction under the drive of the second slider, and finally the welder is adjusted to the optimal position for welding the straight seam.

[0049] like Figures 1 to 7 As shown, further, the welding angle displacement assembly 13 includes: an adjusting bracket 131, a worm gear reducer 133 for driving the locking portion 132 to swing circumferentially, and a fourth rotating drive member 134 for driving the worm gear reducer 133 to rotate, one end of the adjusting bracket 131 is connected to the outer end of the transmission member 7, and the other end of the adjusting bracket 131 is provided with a locking portion 132 for clamping the welder 5 along the circumferential direction, the worm gear reducer 133 is arranged on the adjusting bracket 131 and connected to the locking portion 132, and the output shaft of the fourth rotating drive member 134 is drivingly connected to the worm gear reducer 133; the adjusting bracket 131 is sleeved on the outer periphery of the transmission member 7, and the adjusting bracket 131 and the transmission member 7 are detachably connected by an adjusting screw.

[0050] The beneficial effect of adopting the above further technical solution is that the output shaft of the fourth rotary drive member is connected to the worm gear reducer for driving the worm gear reducer to drive the locking part to swing circumferentially to adjust the inclination angle of the welder, so that the welder has a larger range of motion and can better approach the straight seam. The adjustment bracket and the transmission member are detachably connected by a manual adjustment screw, and the inclination angle of the adjustment bracket can be adjusted by the manual adjustment screw, so that the welder can better approach the straight seam and improve the welding effect.

[0051] like Figures 1 to 7 As shown, further, the driving mechanism 15 includes a displacement component, a traveling gear 151 and a third rotating driving component 152, the displacement component includes: a mounting plate 141 and a plurality of guide wheels 142, the mounting plate 141 is arranged parallel to the top wall of the straight rail 4, and the plurality of guide wheels 142 are rotatably mounted on the mounting plate 141; grooves 41 are provided on both sides of the straight rail 4 along the length direction, and the plurality of guide wheels 142 are arranged in parallel and spaced apart in the grooves 41; the traveling gear 151 is rotatably mounted on the mounting plate 141, and the third rotating driving component 152 is meshed with the straight rail 4; the third rotating driving component 152 is mounted on the top of the mounting plate 141, and the third rotating driving component 152 is coaxially driven and connected with the traveling gear 151.

[0052] The beneficial effect of adopting the above further technical solution is that grooves are formed on both sides of the straight rail along the length direction, and a plurality of guide wheels are arranged in parallel and spaced apart in the grooves to play a role in guiding the movement of the auxiliary mounting plate.

[0053] like Figures 1 to 7 As shown, further, a support assembly 16 is provided at the end of the straight rail 4, and the support assembly 16 includes: a connecting plate 161 and a magnetic suction cup 162, the connecting plate 161 is installed on the side of the straight rail 4 facing the conveying pipe 2, and the magnetic suction cup 162 is installed at the bottom of the connecting plate 141 and can be adsorbed on the outer peripheral wall of the conveying pipe 2.

[0054] The beneficial effect of adopting the above further technical solution is that the arrangement of the magnetic suction cup enables the welding device to be adsorbed on different positions on the conveying pipe along the circumference of the conveying pipe, thereby improving the adaptability of the welding device.

[0055] like Figures 1 to 7 As shown, further, the welder 5 is a welding gun, and the repair sleeve 1 is a B-type sleeve.

[0056] like Figure 1As shown, in an embodiment of the utility model, a welding device is proposed for welding a conveying pipe 2, a repair tube 1 is sleeved on the conveying pipe 2, the repair tube 1 can be a B-type sleeve, a straight seam is formed between the repair tube 1 and the conveying pipe 2, the welding device includes a three-axis displacement mechanism 3 and a welder 5, the three-axis displacement mechanism 3 is provided with a quick-connection portion for quick connection with a straight rail 4, and the three-axis displacement mechanism 3 can slide straightly along the straight rail 4; the welder 5 is installed on the three-axis displacement mechanism 3 and the welding end is arranged toward the straight seam, and the three-axis displacement mechanism 3 can adjust the welding end position of the welder 5 in space through its own movement.

[0057] The quick-connect part in the embodiment of the utility model can be a column structure or a connecting platform on the three-axis displacement mechanism 3. In the case of a column structure, a clamp that is clamped with the column structure can be provided in the straight rail 4. In the case of a connecting platform, the straight rail 4 can be quickly connected to the connecting platform through multiple connectors such as screws and bolts. The welder 5 in the embodiment of the utility model can be a welding gun. It should be noted that the welding device in the utility model is described by taking the welding of the straight seam on the B-type emergency repair cylinder 1 as an example. Among them, in the utility model, the welder 5 is a welding gun.

[0058] The utility model separates the straight rail 4 for driving the welder 5 to perform linear motion from other motion axis systems of the three-axis displacement mechanism 3, and directly and detachably arranges the three-axis displacement mechanism 3 for adjusting the position of the welder 5 on the straight rail 4, which is convenient for disassembly and assembly, meets the requirements of lightweight, and can improve the stability of welding operation.

[0059] During the welding process, the straight rail 4 can be directly set on the periphery of the conveying pipe 2 to be welded, and the entire three-axis displacement mechanism 3 and the driving mechanism 15 can move relative to the straight rail 4. This type of welding device can be carried around, and is convenient for use in seam welding of the conveying pipe 2 in difficult areas such as hillsides. During the welding process, since the three-axis displacement mechanism 3 in the utility model is connected to the straight rail 4, and the welder 5 is installed on the three-axis displacement mechanism 3, when the three-axis displacement mechanism 3 moves linearly along the length direction of the straight rail 4, it can drive the welder 5 to move together, thereby adjusting the position of the welder 5, so that the welder 5 can weld the straight seam. The three-axis displacement mechanism 3 can adjust the position of the welding end on the welder 5, which is conducive to the welder 5 to weld the straight seam more conveniently, so as to achieve highly automated welding. The welding device in this embodiment is composed of only a three-axis displacement mechanism 3 and a welder 5, which can omit the driving components on the large welding device in the prior art, thereby realizing the miniaturization and lightweight of the welding device. When the conveying pipe 2 needs to be repaired and the transportation in the repair environment is inconvenient, the repair personnel can quickly transport the welding device composed of only a three-axis displacement mechanism 3 and a welder 5, and the quick-connect part can be quickly connected with the straight rail 4, thereby realizing a rapid response to the repair.

[0060] In an embodiment of the utility model, the three-axis displacement mechanism 3 includes a box body 6, a transmission member 7, a Y-axis displacement assembly, a Z-axis displacement assembly and a welding angle displacement assembly 13. A strip hole is opened on one side of the box body 6 along the height direction. The transmission member 7 movably passes through the strip hole and the outer end is connected to the welder 5. The Y-axis displacement assembly is connected to the inner end of the transmission member 7 and is used to drive the transmission member 7 to telescopically move in the horizontal direction. The Z-axis displacement assembly is used to drive the transmission member 7 to move along the strip hole. The welding angle displacement assembly 13 is used to adjust the inclination angle of the welder 5. Among them, the Y-axis displacement assembly and the Z-axis displacement assembly are arranged in the box body 6, and the box body 6 plays a role in protecting the Y-axis displacement assembly and the Z-axis displacement assembly to prevent the Y-axis displacement assembly and the Z-axis displacement assembly from being damaged by external impact. The welding angle displacement assembly 13 is installed outside the box body 6 and connected to the welder 5, so as to facilitate the adjustment of the inclination angle and direction of the welding end of the welder 5. Among them, Figure 5 and Figure 6 The left and right directions are horizontal directions, and the up and down directions are length directions. In the utility model, the transmission member 7 is a rod-shaped structure. The box body 6 may be provided with a power supply module and a controller, and the power supply module may be electrically connected to the driving mechanism 15 through a power supply quick connector, so as to realize the power supply from the welding device to the welding machine quick connector. The controller is electrically connected to the power supply module, and the controller may send an electrical signal to the driving mechanism 15 in a wireless or wired manner, and the controller may adopt an existing PLC controller.

[0061] As can be seen from the above, the utility model couples the three groups of adjustment components of the three-axis displacement mechanism 3 on the inside and outside of the box 6, thereby minimizing the volume and reducing the overall weight while ensuring that the motion stroke remains unchanged. Among them, the structural parts in the three-axis displacement mechanism 3 of the utility model are all made of medium and low density engineering materials such as high-strength aluminum alloy, titanium alloy, and engineering plastics. Under the condition of meeting the reliability and structural rigidity of the three-axis displacement mechanism 3, the overall weight and external dimensions of the three-axis displacement mechanism 3 are strictly controlled.

[0062] like Figures 2 to 6 As shown, in an embodiment of the utility model, the Y-axis displacement assembly includes a first rotary drive member 8, a first rotary screw 10 and a first slider. The first rotary screw 10 is arranged in the horizontal direction and is rotationally driven and connected to the first rotary drive member 8. The first slider is threadedly matched with the first rotary screw 10, and the inner end of the transmission member 7 is connected to the first slider. The Z-axis displacement assembly includes a second rotary drive member 11, a second rotary screw 12 and a second slider. The second rotary screw 12 is arranged in the height direction and is rotationally driven and connected to the second rotary drive member 11. The second slider is threadedly matched with the second rotary screw 12, and the inner end of the transmission member 7 is connected to the second slider.

[0063] When it is necessary to weld the straight seam, the first rotating screw 10 can be driven to rotate axially by the first rotating driving member 8, so that the first slider slides on the first rotating screw 10 in the horizontal direction, and the transmission member 7 extends outward or retracts from the strip hole in the horizontal direction under the drive of the first slider, so as to adjust the position of the welder 5 in the horizontal direction. Then, if it is necessary to adjust the position of the welder 5 in the height direction, the second rotating screw 12 can be driven to rotate axially by the second rotating driving member 11, so that the second slider slides on the second rotating screw 12 in the height direction, so as to ensure that the transmission member 7 moves in the strip hole in the height direction under the drive of the second slider, and finally adjust the welder 5 to the best position for welding the straight seam. Further, in the process of adjusting the position of the welder 5, the first slider can be driven to slide along the first rotating screw 10 first, and the second slider can be driven to slide along the second rotating screw 12 first, or the first slider and the second slider can be driven to slide at the same time to adjust the welding end position of the welder 5 until the best welding position is reached. It should be noted that guide rods are further provided on both sides of the first rotating screw 10 and the second rotating screw 12 to assist the first slider and the first rotating screw 10, and the second slider and the second rotating screw 12 to better slide and cooperate.

[0064] like Figure 5 and Figure 6 As shown, a guide rod is arranged in parallel on both sides of the first rotating screw rod 10 and the second rotating screw rod 12 , and the first rotating screw rod 10 , the second rotating screw rod 12 and the guide rod are all connected to the box body 6 .

[0065] In the embodiment of the utility model, the welding angle displacement assembly 13 includes an adjustment bracket 131, a worm gear reducer 133 and a fourth rotary drive member 134. One end of the adjustment bracket 131 is connected to the outer end of the transmission member 7, and the other end is formed with a locking portion 132 for clamping the welder 5 in the circumferential direction. The worm gear reducer 133 is arranged on the adjustment bracket 131 and connected to the locking portion 132. The output shaft of the fourth rotary drive member 134 is drivingly connected to the worm gear reducer 133, and is used to drive the worm gear reducer 133 to drive the locking portion 132 to swing in the circumferential direction to adjust the inclination angle of the welder 5, so that the welder 5 has a larger range of motion and can be closer to the straight seam. The adjustment bracket 131 includes a first adjustment plate and a second adjustment plate, the first adjustment plate is parallel to the side wall of the box body 6 and one end is connected to the transmission member 7, and the other end is connected to a second adjustment plate arranged in the height direction and extending in the horizontal direction, and the locking portion 132 and the worm gear reducer 133 are respectively located on both sides of the second adjustment plate. The locking part 132 includes a clamp and a locking screw. The clamp passes through the second adjustment plate and is connected to the worm gear reducer 133. The worm gear reducer 133 drives the clamp to swing circumferentially. The locking screw is inserted into the opening on the clamp to adjust the tightness of the clamp holding the welder 5, and the position of the clamp holding the welder 5 can be controlled by adjusting the locking screw.

[0066] In an embodiment of the utility model, the adjustment bracket 131 is sleeved on the outer periphery of the transmission member 7, and the adjustment bracket 131 and the transmission member 7 are detachably connected by a manual adjustment screw. The inclination angle of the adjustment bracket 131 can be adjusted by the manual adjustment screw, so that the welder 5 can better approach the straight seam and improve the welding effect.

[0067] In an embodiment of the utility model, a conveying pipe welding device is proposed, which includes a welding machine quick-connect device and the welding device as described above. Since the welding device adopts all embodiments of the welding machine quick-connect device, it also has all the beneficial effects brought by the welding machine quick-connect device, which will not be described in detail here.

[0068] In the embodiment of the utility model, the welding machine quick connection device includes a straight rail 4 and a driving mechanism 15, and the straight rail 4 is adsorbed on the outer peripheral wall of the conveying pipe 2. The driving mechanism 15 is drivingly connected to the three-axis displacement mechanism and can drive the three-axis displacement mechanism to move along the length direction of the straight rail 4.

[0069] In the embodiment of the utility model, the box body 6 is further provided with a follower guard plate, on which a mounting hole is opened in the same length direction as the strip hole, and the transmission member 7 passes through the mounting hole and the strip hole in sequence and is movably plugged into the box body 6. The setting of the follower guard plate can effectively protect the transmission member 7, and prevent the transmission member 7 from being bent by collision and affecting the normal operation of the transmission member 7. Among them, the outer peripheral wall of the transmission member 7 is also provided with a spring sheath for protecting the transmission member 7.

[0070] In an embodiment of the utility model, the three-axis displacement mechanism 3 also includes a displacement assembly, and the displacement assembly includes a mounting plate 141 and a plurality of guide wheels 142. The mounting plate 141 is mounted on the bottom of the box body 6 and is arranged parallel to the top wall surface of the straight rail 4. A plurality of guide wheels 142 are arranged on the mounting plate 141 and slideably cooperate with the straight rail 4. Grooves 41 are formed on both sides of the straight rail 4 along the length direction, and a plurality of guide wheels 142 are arranged in parallel and spaced apart in the grooves 41, which play a role in guiding the movement of the auxiliary mounting plate 141. It should be noted that a quick connector 38 is also provided on the mounting plate 141, and the quick connector 38 is used to conveniently connect the box body 6 with the mounting plate 141, so as to ensure that during the 2D emergency repair of the conveying pipe, the box body 6 and the mounting plate 141 can be quickly matched and installed, thereby improving the efficiency of the 2D emergency repair of the conveying pipe. When the actual conveying pipe 2 is laid, straight rails 4 can be reserved on the conveying pipe 2 at fixed intervals in advance. During emergency repairs, it is only necessary to transport the lightweight three-axis displacement mechanism 3 and the welder 5 to the emergency repair site, and then conveniently assemble them with the straight rails 4 through the quick connector 38 for emergency repairs.

[0071] In an embodiment of the utility model, the driving mechanism 15 includes a traveling gear 151 and a third rotating driving member 152. The traveling gear 151 is mounted on the mounting plate 141 and meshes with the straight rail 4. The third rotating driving member 152 is coaxially drivingly connected to the traveling gear 151. The guide wheel 142 is mounted on the mounting plate 141 and is slidingly matched with the straight rail 4. Among them, a plurality of rollers are arranged at equal intervals on one side along the length direction of the straight rail 4, and a accommodating space is formed between two adjacent rollers. The accommodating space is used to accommodate the gear teeth of the traveling gear 151, and the width of the accommodating space is matched with the gear teeth. Under the drive of the third rotating driving member 152, the traveling gear 151 meshes and drives the mounting plate 141 to reciprocate along the straight rail 4. Among them, the first rotating driving member 8, the second rotating driving member 11, the third rotating driving member 152 and the fourth rotating driving member 134 can all be rotating motors.

[0072] In an embodiment of the utility model, a support assembly 16 is further provided at the end of the straight rail 4, and the support assembly 16 includes a connecting plate 161 and a magnetic suction cup 162. The connecting plate 161 is provided on the side of the straight rail 4 facing the conveying pipe 2. The magnetic suction cup 162 is provided at the bottom of the connecting plate 161 and can be adsorbed with the outer peripheral wall of the conveying pipe 2. In the utility model, magnetic suction cups 162 are arranged at intervals at the bottom of the connecting plate 161, and the magnetic suction cups 162 and the connecting plate 161 are connected and fixed by fasteners. The provision of the magnetic suction cup 162 enables the welding device to be adsorbed at different positions on the conveying pipe 2 along the circumference of the conveying pipe 2, thereby improving the adaptability of the welding device.

[0073] In the embodiment of the utility model, the connecting plate 161 is in an arch bridge shape, which can increase the structural strength. The arch bridge structure can evenly transfer the pressure to the magnetic suction cup 162, so that the connecting plate 161 is not easily deformed after being subjected to pressure and has strong stability.

[0074] The utility model also provides a conveying pipe welding device, which includes the welding device as described above and the welding machine quick-connect device as described above (which can be a quick connector 38). Since the welding device and the welding machine quick-connect device adopt all the above embodiments, they also have all the beneficial effects brought by the pipeline welding device, which will not be described in detail here.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A welding device for pipeline maintenance and repair, wherein the repair tube is sleeved on the conveying pipe, and a straight seam is provided between the repair tube and the conveying pipe, characterized in that: The welding equipment for pipeline maintenance and emergency repair includes: a straight rail, a driving mechanism, a three-axis displacement mechanism and a welder. The straight rail is a straight rail adapted to a straight seam, the straight rail is installed on the outer periphery of the conveying pipe, the driving mechanism is slidably installed on the straight rail, the three-axis displacement mechanism is detachably installed on the straight rail, and the welder is installed on the three-axis displacement mechanism.

2. A pipeline repair welding device according to claim 1, characterized in that: The three-axis displacement mechanism is provided with a quick-connection part for connecting with the straight rail, and the three-axis displacement mechanism is detachably mounted on the straight rail through the quick-connection part.

3. A pipeline repair welding device according to claim 2, characterized in that: The quick-connect part is a column structure or a connecting platform, and the straight rail is provided with a clamp adapted to the column structure or a connecting piece adapted to the connecting platform.

4. The pipeline repair welding equipment according to claim 1, characterized in that: The three-axis displacement mechanism includes: a box body, a transmission member, a Y-axis displacement component for driving the transmission member to telescopically move in the horizontal direction, a Z-axis displacement component for driving the transmission member to vertically move along the strip hole, and a welding angle displacement component for adjusting the welding angle of the welder. A strip hole is opened on one side of the box body along the height direction, the transmission member movably passes through the strip hole and the outer end is connected to the welder, the Y-axis displacement component and the Z-axis displacement component are both connected to the inner end of the transmission member, the Y-axis displacement component and the Z-axis displacement component are both arranged in the box body, and the welding angle displacement component is installed outside the box body and connected to the welder.

5. The pipeline repair welding equipment according to claim 4 is characterized in that: The Y-axis displacement assembly includes: a first rotating drive member, a first rotating screw and a first slider. The first rotating screw is arranged in a horizontal direction and is rotationally driven and connected to the first rotating drive member. The first slider is threadedly engaged with the first rotating screw. The inner end of the transmission member is connected to the first slider.

6. The pipeline repair welding equipment according to claim 4, characterized in that: The Z-axis displacement assembly includes: a second rotary drive member, a second rotary screw and a second slider. The second rotary screw is arranged along the height direction and is rotationally driven and connected to the second rotary drive member. The second slider is threadedly engaged with the second rotary screw. The inner end of the transmission member is connected to the second slider.

7. The pipeline repair welding equipment according to claim 4 is characterized in that: The welding angle displacement assembly includes: an adjusting bracket, a worm gear reducer for driving the locking part to swing circumferentially, and a fourth rotating drive member for driving the worm gear reducer to rotate, one end of the adjusting bracket is connected to the outer end of the transmission member, and the other end of the adjusting bracket is provided with a locking part for clamping the welder along the circumferential direction, the worm gear reducer is arranged on the adjusting bracket and connected to the locking part, and the output shaft of the fourth rotating drive member is drivingly connected to the worm gear reducer; the adjusting bracket is sleeved on the outer periphery of the transmission member, and the adjusting bracket and the transmission member are detachably connected by an adjusting screw.

8. The pipeline repair welding equipment according to claim 1, characterized in that: The driving mechanism includes a displacement assembly, a traveling gear and a third rotating driving member. The displacement assembly includes: a mounting plate and a plurality of guide wheels. The mounting plate is arranged parallel to the top wall of the straight rail, and the plurality of guide wheels are rotatably mounted on the mounting plate; grooves are provided on both sides of the straight rail along the length direction, and the plurality of guide wheels are arranged in parallel and spaced apart in the grooves; the traveling gear is rotatably mounted on the mounting plate, and the third rotating driving member is meshed with the straight rail; the third rotating driving member is mounted on the top of the mounting plate, and the third rotating driving member is coaxially driven and connected to the traveling gear.

9. The pipeline repair welding equipment according to claim 1, characterized in that: A support assembly is provided at the end of the straight rail, and the support assembly includes: a connecting plate and a magnetic suction cup, the connecting plate is installed on the side of the straight rail facing the conveying pipe, and the magnetic suction cup is installed at the bottom of the connecting plate and can be adsorbed on the outer peripheral wall of the conveying pipe.

10. The pipeline repair welding equipment according to claim 1, characterized in that: The welding device is a welding gun, and the emergency repair sleeve is a B-type sleeve.

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