Submerged-arc welding device for petroleum pipeline

Abstract

The utility model relates to a submerged-arc welding device for a petroleum pipeline. According to the technical scheme, a rail groove is formed in the middle of the upper surface of a supporting rail, a base of an auxiliary supporting device slides in cooperation with the rail groove, a pipeline clamping chuck is installed at one end of the supporting rail, a pipeline movable supporting device is installed at the other end of the supporting rail, a moving trolley is placed on one side of the supporting rail, and a swing welding device is installed on the upper portion of the moving trolley. The top of the swing welding device is connected with a welding gun through a swing device. The automatic welding device has the beneficial effects that the stepping motor is controlled to drive the lead screw to rotate, and then the clamping plate is driven to move left and right, so that the welding gun is driven to swing, scaling powder is put in through the scaling powder box, and welding wires are fed through the wire feeder; therefore, submerged-arc welding operation can be conveniently carried out on the petroleum pipeline clamped by the supporting track, the pipeline clamping chuck and the pipeline movable supporting device; therefore, on one hand, the welding efficiency is improved, the welding seam quality is high, and the large-scale welding efficiency of the petroleum pipeline is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline welding technical field, especially a kind of petroleum pipeline submerged arc welding device. BACKGROUND

[0002] The welding of petroleum pipeline is generally by arc welding, which usually requires workers to hold welding torch around the gap of pipeline for welding. The welding slag will fall on the workers, causing harm to the workers, and the quality of the weld after welding cannot be accurately observed. In addition, the quality of the weld depends on the skill of the welder, and the welding efficiency is low, which cannot meet the high production efficiency requirement of petroleum pipeline. As a kind of efficient and stable welding method, the working principle of submerged arc welding is that the arc burns under the flux layer for welding. It has the advantages of stable welding quality, high welding productivity, no arc light and little smoke, and is suitable for large-scale welding. SUMMARY

[0003] The utility model discloses a kind of petroleum pipeline submerged arc welding device, welding efficiency is high, weld quality is high, meet the welding requirement of petroleum pipeline.

[0004] The utility model discloses a kind of petroleum pipeline submerged arc welding device, and its technical scheme is: including swing welding device (1), mobile trolley (2), support rail (3), pipeline clamping chuck (4), pipeline movable support device (5), auxiliary support device (6), the upper surface middle part of support rail (3) is equipped with rail groove (3.1), the base of auxiliary support device (6) and rail groove (3.1) cooperation slide, one end of support rail (3) installs pipeline clamping chuck (4), the other end installs pipeline movable support device (5), mobile trolley (2) is placed in one side of support rail (3), swing welding device (1) is installed on the upper portion of mobile trolley (2), the top of swing welding device (1) is connected welding torch (1.1) by swing (1.2).

[0005] Preferably, the swing welding device (1) includes a welding torch (1.1), a swing (1.2), a flux box (1.3), a wire feeder (1.4), a lifting rod (1.5), and a moving seat (1.6). The lifting rod (1.5) is fixed on the upper surface of the moving seat (1.6). The wire feeder (1.4) is installed on one side of the top of the lifting rod (1.5), and the flux box (1.3) and a telescopic rod (1.7) are installed on the other side. The telescopic rod (1.7) is connected to the swing (1.2) at its outer end. The welding torch (1.1) is installed on the outer side of the swing (1.2). The lower end of the flux box (1.3) is connected to the welding torch (1.1) by a pipeline.

[0006] Preferably, the swing (1.2) comprises a stepper motor (1.2.1), a bracket (1.2.2), a screw rod (1.2.3), and a clamping plate (1.2.4), the middle part of the bracket (1.2.2) is provided with the screw rod (1.2.3), the left end of the screw rod (1.2.3) is connected to the output end of the stepper motor (1.2.1), the middle part of the bracket (1.2.2) is provided with the clamping plate (1.2.4), and the middle part of the clamping plate (1.2.4) is threadedly connected with the screw rod (1.2.3), and the welding gun (1.1) is clamped by the clamping plate (1.2.4).

[0007] Preferably, the pipe movable support device (5) comprises a base (5.1), a rear chuck (5.2), a support body (5.3), a support seat (5.4), a sliding plate box (5.5), a rotating hand wheel (5.6), and a locking device (5.7), the upper side of the base (5.1) is provided with the support seat (5.4), the upper part of the support seat (5.4) is provided with the support body (5.3), the front end of the support body (5.3) is provided with the rear chuck (5.2), the lower side of the support seat (5.4) is connected with the sliding plate box (5.5), and the outer side of the sliding plate box (5.5) is provided with the rotating hand wheel (5.6) and the locking device (5.7).

[0008] Preferably, the rear end of the rear chuck (5.2) is provided with an adjusting hand wheel (5.8), and a locking handle (5.9) is arranged on one side of the support body (5.3).

[0009] Preferably, the auxiliary support device (6) comprises a wheel support (6.1), a roller support (6.2), a plurality of rollers (6.3), a guide rod (6.4), a supporting cylinder (6.5), and a plurality of wheels (6.6), the middle part of the wheel support (6.1) is provided with the supporting cylinder (6.5), the two sides of the supporting cylinder (6.5) are provided with the guide rod (6.4), the top of the supporting cylinder (6.5) is fixed with the roller support (6.2), the roller support (6.2) is internally provided with the plurality of rollers (6.3), and the wheel support (6.1) is internally provided with the plurality of wheels (6.6).

[0010] The utility model discloses an advantageous effect is: the utility model discloses an auxiliary support device is placed to the support rail through the steel pipe, through control makes one end of steel pipe and pipe clamping chuck fixed connection, the other end and pipe movable support device's rear chuck contact cooperation, control the position of mobile trolley again, make swing welding device be located in the support rail's one side, control stepper motor to drive screw rod to rotate again, and then drive clamping plate left and right shift position, thereby drive the swing position of welding gun, put into the flux through flux box, send into welding wire through wire feeder, thereby convenient for the buried -arc welding operation of the petroleum pipeline that pipe clamping chuck and pipe movable support device clamped to support rail, thereby on one hand improves the welding efficiency, and the quality of weld is high, improves the large -scale welding efficiency of petroleum pipeline.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the overall structure schematic diagram of the utility model;

[0012] Figure 2 is the structure schematic diagram of the swing welding device;

[0013] Figure 3 is the structure schematic diagram of the support rail;

[0014] Figure 4 is the structure schematic diagram of the pipeline movable support device;

[0015] Figure 5 is the structure schematic diagram of the auxiliary support device;

[0016] In the above figure: swing welding device 1, mobile trolley 2, support rail 3, pipeline clamping chuck 4, pipeline movable support device 5, auxiliary support device 6, welding torch 1.1, swing 1.2, welding agent box 1.3, wire feeder 1.4, lifting rod 1.5, mobile seat 1.6, telescopic rod 1.7, rail groove 3.1, base 5.1, rear chuck 5.2, support main body 5.3, support seat 5.4, sliding plate box 5.5, rotating hand wheel 5.6, lock 5.7, adjusting hand wheel 5.8, locking handle 5.9, wheel support 6.1, roller support 6.2, roller 6.3, guide rod 6.4, support air cylinder 6.5, wheel 6.6; stepper motor 1.2.1, support 1.2.2, lead screw 1.2.3, clamping plate 1.2.4. DETAILED DESCRIPTION

[0017] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0018] Embodiment 1, refer to Figures 1-5 The utility model refers to a kind of petroleum pipeline submerged arc welding device, including swing welding device 1, mobile trolley 2, support rail 3, pipeline clamping chuck 4, pipeline movable support device 5, auxiliary support device 6, the upper surface middle part of support rail 3 is equipped with rail groove 3.1, the base of auxiliary support device 6 and rail groove 3.1 cooperate sliding, one end of support rail 3 is installed pipeline clamping chuck 4, the other end is installed pipeline movable support device 5, mobile trolley 2 is placed in one side of support rail 3, swing welding device 1 is installed in the upper portion of mobile trolley 2, the top of swing welding device 1 is connected welding torch 1.1 by swing 1.2.

[0019] refer to Figure 2The swing welding device 1 comprises a welding gun 1.1, a swing device 1.2, a flux box 1.3, a wire feeder 1.4, a lifting rod 1.5, a moving seat 1.6, the lifting rod 1.5 is fixed on the upper surface of the moving seat 1.6, the wire feeder 1.4 is installed on one side of the top of the lifting rod 1.5, the flux box 1.3 and a telescopic rod 1.7 are installed on the other side, the outer end of the telescopic rod 1.7 is connected with the swing device 1.2, the welding gun 1.1 is installed on the outer side of the swing device 1.2, and the lower end of the flux box 1.3 is connected with the welding gun 1.1 through a pipeline.

[0020] The swing device 1.2 comprises a stepping motor 1.2.1, a support 1.2.2, a lead screw 1.2.3 and a clamping plate 1.2.4, the middle part of the support 1.2.2 is provided with the lead screw 1.2.3, the left end of the lead screw 1.2.3 is connected to the output end of the stepping motor 1.2.1, the middle part of the support 1.2.2 is provided with the clamping plate 1.2.4, the middle part of the clamping plate 1.2.4 is threadedly connected with the lead screw 1.2.3, the welding gun 1.1 is clamped through the clamping plate 1.2.4, the stepping motor 1.2.1 is controlled to drive the lead screw 1.2.3 to rotate, thereby driving the clamping plate 1.2.4 to move left and right, so that the welding gun 1.1 is swung, thereby facilitating the submerged arc welding operation on the pipe clamped by the supporting rail 3, the pipe clamping chuck 4 and the pipe movable supporting device 5.

[0021] With reference to Figure 4 The pipe movable supporting device 5 comprises a base 5.1, a rear chuck 5.2, a supporting main body 5.3, a supporting seat 5.4, a sliding plate box 5.5, a rotating hand wheel 5.6 and a locking device 5.7, the upper side of the base 5.1 is provided with the supporting seat 5.4, the supporting seat 5.4 can be moved along the slide on the base 5.1 to adjust the position of the rear chuck 5.2; the upper part of the supporting seat 5.4 is provided with the supporting main body 5.3, the front end of the supporting main body 5.3 is provided with the rear chuck 5.2, the lower side of the supporting seat 5.4 is connected with the sliding plate box 5.5, the outer side of the sliding plate box 5.5 is provided with the rotating hand wheel 5.6 and the locking device 5.7.

[0022] The rear end of the rear chuck 5.2 is provided with an adjusting hand wheel 5.8, the adjusting hand wheel 5.8 is used for fine adjustment of the rear chuck 5.2, so that the rear chuck 5.2 is better in contact with the rear end of the pipe; a locking handle 5.9 is installed on one side of the supporting main body 5.3, and is used for locking the position of the rear chuck 5.2, so that the rear chuck 5.2 is firmly in contact with the rear end of the pipe.

[0023] With reference to Figure 5The auxiliary support device 6 mentioned in this utility model includes a wheel bracket 6.1, a roller bracket 6.2, a roller 6.3, a guide rod 6.4, a support cylinder 6.5, and a wheel 6.6. The support cylinder 6.5 is installed in the middle of the wheel bracket 6.1, and the guide rods 6.4 are provided on both sides of the support cylinder 6.5. The roller bracket 6.2 is fixed on the top of the support cylinder 6.5. Multiple rollers 6.3 are installed in the roller bracket 6.2, and multiple wheels 6.6 are installed in the wheel bracket 6.1.

[0024] In use, the steel pipe to be welded is placed on the auxiliary support device 6 on the support rail 3, positioning the steel pipe in the middle of the two sets of rollers 6.3. Then, by controlling the movement of the wheels 6.6 in the track grooves 3.1 on the support rail 3, the left end of the steel pipe is fixedly connected to the pipe clamping chuck 4, and the right end contacts the rear chuck 5.2 of the movable pipe support device 5. The rear chuck 5.2 is finely adjusted by adjusting the handwheel 5.8 to better contact and engage with the rear end of the pipe. The rear chuck 5.2 is then firmly engaged with the rear end of the pipe by operating the locking handle 5.9. Finally, the moving trolley is controlled. Position 2 allows the oscillating welding device 1 to be located beside the support rail 3. Then, by controlling the stepper motor 1.2.1, the lead screw 1.2.3 is rotated, which in turn drives the clamping plate 1.2.4 to move left and right, thereby causing the welding gun 1.1 to oscillate, thus better realizing the welding action. Flux is put into the flux box 1.3, and welding wire is fed in through the wire feeder 1.4, which facilitates the submerged arc welding operation on the oil pipeline held by the support rail 3, the pipeline clamping chuck 4, and the pipeline movable support device 5. This improves welding efficiency and weld quality, thereby increasing the efficiency of large-scale welding of oil pipelines.

[0025] Example 2: A submerged arc welding device for oil pipelines mentioned in this utility model includes an oscillating welding device 1, a moving trolley 2, a support rail 3, a pipe clamping chuck 4, a pipe movable support device 5, and an auxiliary support device 6. The upper surface of the support rail 3 is provided with a rail groove 3.1 in the middle. The base of the auxiliary support device 6 slides in cooperation with the rail groove 3.1. The pipe clamping chuck 4 is installed at one end of the support rail 3, and the pipe movable support device 5 is installed at the other end. The moving trolley 2 is placed on one side of the support rail 3, and the oscillating welding device 1 is installed on the upper part of the moving trolley 2. The top of the oscillating welding device 1 is connected to the welding torch 1.1 through an oscillator 1.2.

[0026] The difference from Example 1 is:

[0027] The roller bracket 6.2 in this embodiment may also be provided with two or three sets, each set having two rollers 6.3, with the oil pipeline located between the two rollers 6.3, thereby playing a role in assisting the rotation of the oil pipeline.

[0028] The above merely describes preferred embodiments of the present application, and any modification or equivalent transformation of the technical solutions described above can be made by those skilled in the art. Therefore, any simple modification or equivalent transformation made according to the technical solutions of the present application is within the scope of the present application.

Claims

1. A submerged arc welding apparatus for oil country pipe, characterized by: The device includes a swing welding device (1), a moving trolley (2), a support rail (3), a pipe clamping chuck (4), a pipe movable support device (5), and an auxiliary support device (6). The support rail (3) has a rail groove (3.1) in the middle of its upper surface. The base of the auxiliary support device (6) slides in cooperation with the rail groove (3.1). The pipe clamping chuck (4) is installed at one end of the support rail (3), and the pipe movable support device (5) is installed at the other end. The moving trolley (2) is placed on one side of the support rail (3), and the swing welding device (1) is installed on the upper part of the moving trolley (2). The top of the swing welding device (1) is connected to the welding torch (1.1) through a swinger (1.2).

2. The apparatus of claim 1 wherein: The oscillating welding device (1) includes a welding torch (1.1), an oscillator (1.2), a flux box (1.3), a wire feeder (1.4), a lifting rod (1.5), and a moving seat (1.6). The lifting rod (1.5) is fixed on the upper surface of the moving seat (1.6). The wire feeder (1.4) is installed on one side of the top of the lifting rod (1.5), and the flux box (1.3) and the telescopic rod (1.7) are installed on the other side. The outer end of the telescopic rod (1.7) is connected to the oscillator (1.2). The welding torch (1.1) is installed on the outer side of the oscillator (1.2). The lower end of the flux box (1.3) is connected to the welding torch (1.1) through a pipe.

3. The apparatus of claim 2 wherein: The oscillator (1.2) includes a stepper motor (1.2.1), a bracket (1.2.2), a lead screw (1.2.3), and a clamping plate (1.2.4). The lead screw (1.2.3) is mounted in the middle of the bracket (1.2.2), and the left end of the lead screw (1.2.3) is connected to the stepper motor (1.2.4). At the output end of 1.2.1), a clamping plate (1.2.4) is installed in the middle of the bracket (1.2.2), and the middle of the clamping plate (1.2.4) is threadedly connected to the lead screw (1.2.3), and the welding gun (1.1) is clamped by the clamping plate (1.2.4).

4. The apparatus of claim 2 wherein: The pipeline movable support device (5) includes a base (5.1), a rear chuck (5.2), a support body (5.3), a support seat (5.4), a slide box (5.5), a rotating handwheel (5.6), and a locking device (5.7). The support seat (5.4) is installed on the upper side of the base (5.1), the support body (5.3) is installed on the upper part of the support seat (5.4), the rear chuck (5.2) is installed at the front end of the support body (5.3), the slide box (5.5) is connected to the lower side of the support seat (5.4), and the rotating handwheel (5.6) and the locking device (5.7) are installed on the outer side of the slide box (5.5).

5. The apparatus of claim 4 wherein: The rear chuck (5.2) is provided with an adjustment handwheel (5.8) at its rear end, and a locking handle (5.9) is installed on one side of the support body (5.3).

6. The apparatus of claim 1 wherein: The auxiliary support device (6) comprises a wheel support (6.1), a roller support (6.2), rollers (6.3), guide rods (6.4), support cylinders (6.5) and wheels (6.6), the middle part of the wheel support (6.1) is provided with the support cylinders (6.5), the two sides of the support cylinders (6.5) are provided with the guide rods (6.4), the top of the support cylinders (6.5) is fixedly provided with the roller support (6.2), a plurality of rollers (6.3) are arranged in the roller support (6.2), and a plurality of wheels (6.6) are arranged in the wheel support (6.1).

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