A welding device for gas pipeline construction

Abstract

This invention discloses a welding device for gas pipeline construction, relating to the field of outdoor pipeline welding technology. It includes an adjusting component for clamping the pipeline. While clamping one end of the pipeline, the adjusting component adjusts the position of the pipeline to align the two pipelines to be welded. A detection component and a welding component are slidably mounted on the side of the adjusting component. When the adjusting component aligns the two pipelines, the detection component detects the concentricity of the two pipelines and determines the direction of pipeline deviation based on the value of a pressure sensor mounted on the detection component. The welding component welds the two pipelines by moving two sets of welding heads in a circular motion, while simultaneously protecting the welding position. This invention improves pipeline welding efficiency and avoids the influence of dust and sand on the welding effect, while ensuring the concentric alignment of the two pipelines.

Description

Technical Field

[0001] This invention relates to the field of outdoor pipeline welding technology, and in particular to a welding device for gas pipeline construction. Background Technology

[0002] The construction of gas transmission pipelines often faces the need for field assembly and welding of large-diameter, high-grade steel pipes. The welding quality directly affects the long-term operational safety and reliability of long-distance pipelines. The unique geographical and climatic conditions of windy and sandy areas, the drastic temperature differences between day and night, and the complex terrain of Gobi and mountainous regions pose extremely stringent challenges to the precision, efficiency, and safety of on-site pipeline welding operations. Pipeline construction in windy and sandy areas still heavily relies on the combination of manual labor and large hoisting equipment for pipe assembly. Operators must repeatedly adjust the spatial posture of the pipeline using hand tools and experience under windy and harsh weather conditions to achieve coarse concentricity adjustments at the pipe ends. This process is not only inefficient and extremely labor-intensive, but the adjustment accuracy is also significantly affected by environmental visibility and the operator's condition, making it difficult to consistently guarantee the extremely high concentricity required for welding. Furthermore, the heavy pipeline poses a risk of loss of control during adjustment due to unstable support or operational errors, posing a serious safety threat to on-site personnel.

[0003] Traditional welding processes are particularly vulnerable in such environments. Sandstorms and dust contamination of the weld joint are major causes of defects such as porosity and slag inclusions, severely impacting weld density. Furthermore, the quality stability of manual or semi-automatic welding is difficult to guarantee, and the reduced ability of welders to work continuously in harsh environments further increases the risk of quality fluctuations. Summary of the Invention

[0004] In response to the aforementioned technical problems of the inability to quickly align pipes during welding and the impact of wind and sand on welding results, this invention discloses a gas pipeline welding device that can be used in adverse weather conditions and quickly aligns pipe concentricity.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a welding device for gas pipeline construction, comprising an adjustment component, the adjustment component comprising a movable frame, a lifting frame slidably disposed on the movable frame, an adjustment mechanism disposed on the lifting frame, the adjustment mechanism clamping a first pipe and adjusting the position of the first pipe, the adjustment mechanism comprising a mounting plate, a detection component and a welding component slidably disposed on the mounting plate, the detection component comprising a first mounting frame slidably mounted on the mounting plate, a plurality of positioning rollers disposed at the lower end of the mounting frame, the positioning rollers being in contact with the first pipe and the second pipe, the welding component comprising a second mounting frame slidably mounted on the mounting plate, two welding frames slidably disposed at the lower end of the second mounting frame, a third mounting frame slidably disposed on the welding frame, a welding plate slidably disposed on the third mounting frame, a welding head disposed on the welding plate, the welding head welding the first pipe and the second pipe, and a retaining ring disposed on the third mounting frame.

[0006] Furthermore, multiple sets of moving wheels are rotatably installed on both sides of the mobile frame.

[0007] Furthermore, the adjustment mechanism includes a lifting frame slidably installed in the movable frame, an adjustment frame slidably installed on the lifting frame, a mounting plate rotatably installed at the lower end of the second motor, and multiple sets of clamping plates slidably installed at the lower end of the mounting plate, the clamping plates clamping the first pipe.

[0008] Furthermore, the detection component also includes a positioning plate slidably mounted on the lower end of the mounting frame, with multiple sets of positioning frames slidably arranged on the positioning plate, and the positioning rollers mounted on the positioning frames.

[0009] Furthermore, a spring is provided between the positioning frame and the positioning plate, and a pressure sensor is provided on the positioning plate to detect the pressure on the positioning frame.

[0010] Furthermore, the retaining ring is provided with multiple observation windows, and welding safety goggles are installed at the positions of the observation windows.

[0011] Furthermore, a transfer frame is slidably arranged inside the mounting frame three, and a set of motors four are arranged on both sides of the transfer frame. The output shaft of the motors four is equipped with moving wheels two, and the moving wheels two are in contact with the welding frame.

[0012] Furthermore, a second spring is provided between the transfer frame and the mounting frame three, and the second spring presses down on the transfer frame.

[0013] The beneficial effects of this invention compared with the prior art are as follows: The adjustment component of this invention adjusts the position of pipe one, improving the speed of concentric alignment between pipe one and pipe two. The adjustment component adjusts the height, lateral position, and skew angle of pipe one. At the same time, the detection component of this invention ensures the concentricity of pipe one and pipe two. The detection component detects the concentricity between pipe one and pipe two. The welding component of this invention automatically welds pipe one and pipe two. The two sets of welding heads in the welding component automatically rotate along the axis of pipe one and pipe two to complete welding without dead angles. During the welding process, the setting of the retaining ring prevents dust from entering the welding position and affecting the welding effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a front view of the overall structure of the present invention.

[0016] Figure 3 This is a right view of the adjustment component structure of the present invention.

[0017] Figure 4 for Figure 3 Cross-sectional view of the structure along the AA direction.

[0018] Figure 5 for Figure 3 Cross-sectional view of the structure in the BB direction.

[0019] Figure 6 This is a schematic diagram of a partial structure of the adjustment component of the present invention.

[0020] Figure 7 This is a schematic diagram showing the installation positions of the adjustment component and the detection component of the present invention.

[0021] Figure 8 This is a schematic diagram of a partial structure of the detection component of the present invention.

[0022] Figure 9 This is a schematic diagram showing the installation positions of the adjustment component and the welding component of the present invention.

[0023] Figure 10 This is a schematic diagram of the welding assembly structure of the present invention.

[0024] Figure 11 This is a front view of the welding assembly structure of the present invention.

[0025] Figure 12 for Figure 11 Cross-sectional view of the structure in the CC direction.

[0026] Figure 13 for Figure 12 Enlarged schematic diagram of the structure at point D.

[0027] Figure 14 This is a partial structural diagram of the welding assembly of the present invention.

[0028] Figure 15 This is a schematic diagram showing the working positions of the detection component and the welding component of the present invention.

[0029] Attached reference numerals: 1-Adjustment component; 2-Detection component; 3-Welding component; 4-Construction ground; 101-Moving frame; 102-Moving wheel one; 103-Lifting frame; 104-Pipe one; 105-Clamping plate; 106-Mounting plate; 107-Motor one; 108-Motor two; 109-Electric cylinder one; 110-Electric cylinder two; 111-Adjustment frame; 112-Screw one; 113-Pipe two; 201-Mounting frame one; 202-Electric cylinder three; 203 - Positioning plate; 204 - Motor 3; 205 - Lead screw 2; 206 - Positioning frame; 207 - Positioning roller; 208 - Spring 1; 301 - Mounting frame 2; 302 - Electric cylinder 4; 303 - Electric cylinder 5; 304 - Welding frame; 305 - Retaining ring; 306 - Electric cylinder 6; 307 - Welding plate; 308 - Observation window; 309 - Welding head; 310 - Moving wheel 2; 311 - Transfer frame; 312 - Spring 2; 313 - Motor 4; 314 - Mounting frame 3. Detailed Implementation

[0030] refer to Figures 1 to 15 The diagram shows a welding device for gas pipeline construction, including an adjustment component 1 for moving and adjusting the position of a first pipe 104. The adjustment component 1 adjusts the first pipe 104 at multiple angles to align it with a second pipe 113. A detection component 2 is provided on the side of the adjustment component 1 to detect the concentricity of the first pipe 104 and the second pipe 113. The detection component 2 is equipped with multiple sets of positioning rollers 207. The alignment of the first pipe 104 and the second pipe 113 is determined by detecting the pressure on the positioning rollers 207. A welding component 3 is also provided on the side of the adjustment component 1 for welding the first pipe 104 and the second pipe 113. Two sets of welding heads 309 on the welding component 3 rotate along the axis of the first pipe 104 and the second pipe 113 for welding. A retaining ring 305 is also provided on the welding component 3 to protect the welding position, thereby improving welding efficiency and preventing wind and sand debris from affecting the welding effect.

[0031] refer to Figures 1 to 6The adjustment assembly 1 shown includes an adjustment mechanism and two sets of movable frames 101. Each movable frame 101 has a rotatable caster wheel 102 on its side. When the caster wheel 102 rotates, it moves the movable frame 101. An electric cylinder 109 is installed inside each movable frame 101. The movable end of the electric cylinder 109 is connected to a lifting frame 103. The lifting frame 103 is slidably connected to the movable frame 101. When the electric cylinder 109 is activated, it causes the lifting frame 103 to slide within the movable frame 101. An electric cylinder 110 is installed inside. The movable end of the electric cylinder 110 is connected to the adjusting frame 111. The adjusting frame 111 is slidably connected to the lifting frame 103. When the electric cylinder 110 is started, it drives the adjusting frame 111 to move. A motor 108 is installed at the upper end of the adjusting frame 111. The adjusting mechanism includes a mounting plate 106. The output shaft of the motor 108 is connected to the mounting plate 106. The mounting plate 106 is rotatably mounted on the adjusting frame 111. When the motor 108 is started, it drives the mounting plate 106 to rotate.

[0032] The adjustment mechanism also includes multiple sets of clamping plates 105 and motor 107 that are slidably disposed at the lower end of the mounting plate 106. When the clamping plates 105 approach each other, they clamp the pipe 104. A lead screw 112 is provided on the output shaft of the motor 107. The lead screw 112 is a bidirectional lead screw. The lead screw 112 is threadedly connected to the clamping plates 105. When the motor 107 is started, the motor 107 drives the lead screw 112 to rotate. The lead screw 112 drives the clamping plates 105 to approach each other and clamp the pipe 104.

[0033] refer to Figures 7 to 8 The detection component 2 shown includes a mounting bracket 201 that is slidably mounted on a mounting plate 106. An electric cylinder 202 is also provided on the mounting plate 106. The movable end of the electric cylinder 202 is connected to the mounting bracket 201. When the electric cylinder 202 is started, it drives the mounting bracket 201 to slide on the mounting plate 106. Two sets of positioning plates 203 are slidably provided at the lower end of the mounting bracket 201. A motor 204 is also provided at the lower end of the mounting bracket 201. A lead screw 205 is provided on the output shaft of the motor 204. The lead screw 205 is connected to the motor 204 by a thread. The lead screw 205 is a bidirectional lead screw. When the motor 204 is started, it drives the two sets of positioning plates 203 to move closer to each other through the lead screw 205.

[0034] Multiple positioning frames 206 are slidably mounted on the positioning plate 203. Positioning rollers 207 are mounted on the positioning frames 206. A spring 208 is installed between the positioning plate 203 and the positioning frames 206. A pressure sensor is installed inside the positioning plate 203. The pressure sensor detects the pressure on the positioning frames 206. When the two sets of positioning plates 203 approach each other, they drive the multiple sets of positioning rollers 207 to fit against pipe 2 113 and pipe 1 104. Since pipe 2 113 is a pipe that has already been welded, pipe 1 104 should be aligned with pipe 2 113. When pipe 2 113 and pipe 1 104 are concentrically aligned, the multiple sets of positioning frames 206 are subjected to the same pressure. If the pressure on a positioning frame 206 increases, it indicates that pipe 1 104 and pipe 2 113 are not aligned, and pipe 1 104 is biased abnormally towards the set of positioning frames 206. The position of pipe 1 104 is adjusted by adjusting component 1.

[0035] refer to Figures 9 to 15 The welding assembly 3 shown includes a second mounting bracket 301 that is slidably mounted on a mounting plate 106. A fourth electric cylinder 302 is also provided on the mounting plate 106. The movable end of the fourth electric cylinder 302 is connected to the second mounting bracket 301. When the fourth electric cylinder 302 is started, it drives the second mounting bracket 301 to move. Two sets of welding frames 304 are slidably provided at the lower end of the second mounting bracket 301. A fifth electric cylinder 303 is provided at both ends of the second mounting bracket 301. The movable end of the fifth electric cylinder 303 is connected to the welding frame 304. When the fifth electric cylinder 303 is started, it drives the two sets of welding frames 304 to move.

[0036] Each of the two sets of welding frames 304 has a set of mounting frames 314 slidably mounted on it. A welding plate 307 is slidably mounted on the upper end of the mounting frame 314. An electric cylinder 306 is also mounted on the mounting frame 314. The movable end of the electric cylinder 306 is connected to the welding plate 307. When the electric cylinder 306 is started, it drives the welding plate 307 to slide on the mounting frame 314. A welding head 309 is provided at the end of the welding plate 307 away from the mounting frame 2 301. The welding head 309 performs welding between pipe 1 104 and pipe 2 113.

[0037] Mounting bracket 314 is also equipped with a retaining ring 305. When the two sets of welding brackets 304 approach each other, the two sets of retaining rings 305 will move closer to each other. The retaining rings 305 shield the connection position of pipe 104 and pipe 213 to prevent dust from flying in during the welding process of welding head 309 and affecting the welding effect. The retaining rings 305 are equipped with multiple observation windows 308. Welding safety glasses are installed at the observation windows 308 to observe the welding situation.

[0038] A transfer frame 311 is slidably installed inside the mounting frame 314. A spring 312 is installed between the transfer frame 311 and the mounting frame 314. A set of motors 313 is installed on both sides of the transfer frame 311. A moving wheel 310 is installed on the output shaft of the motor 313. The moving wheel 310 is in contact with the welding frame 304. The spring 312 always applies pressure to the transfer frame 311, so that the transfer frame 311 drives the moving wheel 310 to be in close contact with the welding frame 304. When the motor 313 starts, it drives the moving wheel 310 to rotate. The moving wheel 310 drives the mounting frame 314 to move on the welding frame 304. The mounting frame 314 drives the welding head 309 to move.

[0039] Working principle: During operation, a working gap is dug out on the construction ground 4, and the gap is located at the welding position of pipe 104 and pipe 213.

[0040] Place the end of pipe 104 to be welded between two sets of clamping plates 105. Start motor 107. Motor 107 drives multiple sets of clamping plates 105 to move closer together via two sets of lead screws 112. The clamping plates 105 clamp pipe 104. When the moving wheel 102 rotates, it drives the moving frame 101 to move. The moving frame 101 drives pipe 104 to move. When electric cylinder 109 is started, it drives the lifting frame 103 to move. The lifting frame 103 moves through... Mounting plate 106 moves pipe 104 to adjust its height. When electric cylinder 2 110 is started, it moves adjusting frame 111, which in turn moves pipe 104 via mounting plate 106 to adjust its lateral position. When motor 2 108 is started, it rotates mounting plate 106, which in turn rotates pipe 104 to adjust its tilt angle.

[0041] After pipe 104 is aligned with pipe 213, electric cylinder 3202 is activated. Electric cylinder 3202 drives mounting bracket 1201 to slide on mounting plate 106. Mounting bracket 1201 drives multiple sets of positioning plates 203 to descend. Positioning plates 203 drive multiple sets of positioning rollers 207 to descend. Motor 3204 is activated. Motor 3204 drives lead screw 205 to rotate. Lead screw 205 drives the two sets of positioning plates 203 to move closer together. The two sets of positioning plates 203 drive the positioning rollers 207 to move closer together and fit against pipe 104 and pipe 213. At this time, spring 1208 is... The pressure sensor on the compression and positioning plate 203 detects the pressure on the positioning frame 206. When the second pipe 113 and the first pipe 104 are concentrically aligned, the pressure on multiple positioning frames 206 is the same. If the pressure on any positioning frame 206 increases, it means that the first pipe 104 and the second pipe 113 are not aligned. The position of the first pipe 104 is adjusted by adjusting component 1. When the pressure sensor values ​​on the positioning plate 203 are the same, the two positioning plates 203 are driven to move away from each other, releasing the positioning roller 207 from the contact with the first pipe 104 and the second pipe 113.

[0042] Start electric cylinder 4 302, which drives mounting bracket 2 301 to descend. Electric cylinder 4 302 drives welding bracket 304 to align with pipe 1 104 and pipe 2 113. Start electric cylinder 5 303, which drives the two sets of welding brackets 304 to move closer to each other. Welding bracket 304 is in contact with pipe 2 113 and pipe 1 104. Start electric cylinder 6 306, which drives welding plate 307 to slide on mounting bracket 3 314. Welding plate 307 drives welding head 309 to align with the welding position of pipe 1 104 and pipe 2 113. Start welding head 309, which welds pipe 1 104 and pipe 2 113.

[0043] During the welding process, motor 4 313 is started, which drives the moving wheel 2 310 to rotate. The moving wheel 2 310 drives the mounting frame 3 314 to move on the welding frame 304. The mounting frame 3 314 drives the welding head 309 to complete the welding of pipe 1 104 and pipe 2 113. The two sets of welding heads 309 weld half a turn at the connection between pipe 1 104 and pipe 2 113 respectively.

[0044] During the welding process, the retaining ring 305 shields the welding position to prevent sand from entering the welding position. At the same time, the staff can observe the welding effect through the observation window 308. After the welding is completed, the two sets of clamping plates 105 are driven to move away from each other to release the clamping of the pipe 104. At the same time, the mounting bracket 201 and the mounting bracket 301 are driven to reset.

Claims

1. A welding apparatus for gas pipe construction, characterized by: The adjusting assembly (1) comprises a moving frame (101), a lifting frame (103) is slidably arranged on the moving frame (101), an adjusting mechanism is arranged on the lifting frame (103), the adjusting mechanism clamps and adjusts the position of a pipe one (104), the adjusting mechanism comprises a mounting plate (106), a detection assembly (2) and a welding assembly (3) are slidably arranged on the mounting plate (106), the detection assembly (2) comprises a mounting frame one (201) slidably arranged on the mounting plate (106), a plurality of positioning rollers (207) are arranged at the lower end of the mounting frame one (201), the positioning rollers (207) are in contact with the pipe one (104) and a pipe two (113), the welding assembly (3) comprises a mounting frame two (301) slidably arranged on the mounting plate (106), two groups of welding frames (304) are slidably arranged at the lower end of the mounting frame two (301), a mounting frame three (314) is slidably arranged on the welding frame (304), a welding plate (307) is slidably arranged on the mounting frame three (314), a welding head (309) is arranged on the welding plate (307), the welding head (309) welds the pipe one (104) and the pipe two (113), a stop ring (305) is arranged on the mounting frame three (314); The adjusting mechanism comprises the lifting frame (103) slidably arranged in the moving frame (101), the adjusting frame (111) is slidably arranged on the lifting frame (103), the mounting plate (106) is rotatably arranged at the lower end of a motor two (108), a plurality of clamping plates (105) are slidably arranged at the lower end of the mounting plate (106), the clamping plates (105) clamp the pipe one (104); The transfer frame (311) is slidably arranged in the mounting frame three (314), a group of motor fours (313) are arranged at the two sides of the transfer frame (311), a moving wheel two (310) is arranged on the output shaft of the motor four (313), and the moving wheel two (310) is in contact with the welding frame (304); The spring two (312) is arranged between the transfer frame (311) and the mounting frame three (314), and the spring two (312) presses the transfer frame (311); the transfer frame (311) drives the moving wheel two (310) to be in close contact with the welding frame (304), the motor four (313) drives the moving wheel two (310) to rotate when starting, the moving wheel two (310) drives the mounting frame three (314) to move on the welding frame (304), and the mounting frame three (314) drives the welding head (309) to move; The detection assembly (2) further comprises a positioning plate (203) slidably arranged at the lower end of the mounting frame one (201), a plurality of positioning frames (206) are slidably arranged on the positioning plate (203), and the positioning rollers (207) are arranged on the positioning frames (206). The positioning frame (206) is provided with a spring (208) between the positioning plate (203), the positioning plate (203) is provided with a pressure sensor, and the pressure sensor detects the pressure received by the positioning frame (206).

2. A welding device for gas pipe construction according to claim 1, characterized in that: A plurality of groups of moving wheels (102) are rotatably arranged on both sides of the moving frame (101).

3. The welding device for gas pipe construction of claim 1, wherein: A plurality of observation windows (308) are arranged on the blocking ring (305), and a welding goggles sheet is mounted at the observation windows (308).

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