Submerged-arc welding device for carbon steel storage tank

Abstract

The utility model discloses a carbon steel storage tank submerged-arc welding device which comprises a welding device body, an upper installation frame and a lower movable frame which are connected through a lifting mechanism are arranged on the welding device body, a frame body top plate is fixed to the upper end of the upper installation frame, and an installation rod is connected to the side face of the frame body top plate. A transverse displacement mechanism is mounted on the side face of the mounting rod, a lifting adjusting mechanism is movably mounted on the side face of the transverse displacement mechanism through a lead screw structure, and a mounting plate is movably connected to the side face of the lifting adjusting mechanism through the lead screw structure; a scaling powder barrel, a scaling powder discharging control mechanism and a mounting base are sequentially arranged on the other side of the mounting plate from top to bottom, and a scaling powder discharging nozzle, a welding gun, a contact tube and a camera are mounted at the lower end of the mounting base side by side. According to the submerged-arc welding device for the carbon steel storage tank, the stability of the carbon steel storage tank can be effectively guaranteed, the submerged-arc welding device can weld and fix the carbon steel storage tank conveniently, meanwhile, in the welding process, scaling powder is convenient to recycle, and waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon steel storage tank processing equipment, in particular to a submerged arc welding device for a carbon steel storage tank. Background Art

[0002] Carbon steel storage tanks are a type of storage equipment made of carbon steel or low alloy steel. They have the advantages of high strength, good corrosion resistance, high pressure resistance, strong adaptability, easy maintenance, and low cost. They are used to store liquids or gases, such as crude oil, fuel, chemical products, natural gas, liquefied gas, etc. Carbon steel storage tanks have important storage and transportation functions in many fields such as industrial production, energy industry, and chemical industry. They are one of the indispensable equipment in industrial production. The processing of carbon steel storage tanks mainly involves welding the cut carbon steel components according to the design drawings, mainly using submerged arc welding, argon arc welding and other methods. After welding, surface treatments such as grinding and sandblasting are performed, and then accessories such as inlets and outlets, valves, and inspection ports are installed, and finally quality inspection is performed.

[0003] When submerged arc welding is performed on existing carbon steel storage tanks, the submerged arc welding device uses welding wire to form a filling material, and uses electric arc to heat the workpiece and welding wire to perform welding. In submerged arc welding, the welding wire is fed into the weld through a welding gun and combined with flux to form a uniform and firm weld.

[0004] However, when the submerged arc welding device for carbon steel storage tanks is currently working, in order to make the weld surface flat and improve the welding quality, the welding gun needs to be leveled, and the carbon steel parts are usually only positioned downward when rotating. If the carbon steel parts vibrate, the welding quality will be affected. Utility Model Content

[0005] The purpose of the utility model is to provide a submerged arc welding device for carbon steel storage tanks to solve the problem raised by the above-mentioned background technology that when the submerged arc welding device for carbon steel storage tanks on the market is working, in order to make the welding surface flat and improve the welding quality, the welding gun needs to be level, and the carbon steel parts are usually only positioned downward when rotating. If the carbon steel parts vibrate, the welding quality will be affected.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submerged arc welding device for a carbon steel storage tank, comprising a welding device main body, an upper mounting frame and a lower movable frame connected by a lifting mechanism are provided on the welding device main body, and a frame top plate is fixed to the upper end of the upper mounting frame, and a mounting rod is connected to the side of the frame top plate, a lateral displacement mechanism is installed on the side of the mounting rod, and a lifting adjustment mechanism is movably installed on the side of the lateral displacement mechanism through a screw structure, and a mounting plate is movably connected to the side of the lifting adjustment mechanism through a screw structure, and a flux barrel, a flux discharge control mechanism and a mounting seat are arranged in sequence on the other side of the mounting plate from top to bottom, and a mounting cover with a bevel structure at the bottom is provided on the mounting seat, and a flux discharge nozzle, a welding gun, a conductive nozzle and a camera are installed side by side at the lower end of the mounting seat.

[0007] Preferably, a welding wire reel is installed on the upper end of the frame top plate, and welding wire is arranged in the welding wire reel, and welding wire guide rollers matching with the welding wire are respectively bolted to the welding wire reel and the side surface of the mounting plate.

[0008] Preferably, the outlet at the lower end of the flux barrel is inserted into the flux discharge control mechanism, and the lower end of the flux discharge control mechanism is connected to the flux discharge nozzle through a hose.

[0009] Preferably, a flux recovery pipe is provided on the lower end side of the oblique opening of the mounting cover, and the higher end side of the oblique opening of the mounting cover is close to the camera, the upper end of the flux recovery pipe is connected to the flux barrel through a suction pump structure, and a square-structured flux recovery nozzle is plugged and fixed on the lower end of the flux recovery pipe, and the lower end plane of the flux recovery nozzle is lower than the lower end plane of the mounting cover.

[0010] Preferably, fixing parts are welded and fixed to the outside of the two opposite sides of the mounting cover, and a limiting column is fixed by bolts between the fixing parts. A fixing plate is movably sleeved on the limiting column, and a spring is passed through the limiting column on the upper and lower sides of the fixing plate, and the two ends of the spring are respectively fixed to the fixing plate and the fixing part with screws.

[0011] Preferably, the fixing plate is a bent piece, and a roller is fixed to the side surface of the fixing plate via a rotating rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the submerged arc welding device for carbon steel storage tanks can effectively ensure the stability of carbon steel storage tanks, so that the submerged arc welding device can perform welding and fixing processing on carbon steel storage tanks, and at the same time, during welding, the flux can be easily recovered to reduce waste. The submerged arc welding device for carbon steel storage tanks covers the flux feeding area through a mounting cover with an oblique structure at the bottom to reduce the falling of the flux, and at the same time, a roller that can be raised and lowered by itself and controlled by a spring is arranged on the side of the mounting cover, so that the roller can be firmly supported on the carbon steel storage tank, reducing the vibration of the carbon steel storage tank and ensuring the welding quality of the carbon steel storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a submerged arc welding device for carbon steel storage tanks according to the utility model;

[0014] Figure 2 This utility model is a submerged arc welding device for carbon steel storage tanks Figure 1 The enlarged structural diagram at A in the middle;

[0015] Figure 3 This is a top view of a submerged arc welding device for carbon steel storage tanks according to the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the installation cover structure of a submerged arc welding device for a carbon steel storage tank.

[0017] In the figure: 1. welding device body; 2. frame top plate; 3. upper mounting frame; 4. lower movable frame; 5. welding wire reel; 6. welding wire; 7. welding wire guide roller; 8. lifting and lowering adjustment mechanism; 9. flux barrel; 10. mounting plate; 11. flux discharge control mechanism; 12. lateral displacement mechanism; 13. flux recovery pipe; 1301. flux recovery nozzle; 14. mounting cover; 1401. fixing plate; 1402. roller; 1403. fixing part; 1404. limiting column; 1405. spring; 15. mounting rod; 16. mounting seat; 1601. flux discharge nozzle; 1602. camera; 1603. conductive nozzle; 1604. welding gun. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4The utility model provides a technical solution: a submerged arc welding device for a carbon steel storage tank, comprising a welding device body 1, an upper mounting frame 3 and a lower movable frame 4 connected by a lifting mechanism are arranged on the welding device body 1, and a frame top plate 2 is fixed to the upper end of the upper mounting frame 3, and a mounting rod 15 is connected to the side of the frame top plate 2, a welding wire reel 5 is installed on the upper end of the frame top plate 2, and a welding wire 6 is arranged in the welding wire reel 5, and a welding wire guide roller 7 matching with the welding wire 6 is bolted to the side of the welding wire reel 5 and the mounting plate 10, respectively. The welding wire reel 5 of this structure is used for the wire laying-out processing of the welding wire 6, so that the welding wire 6 can reach the welding gun 1604 through the guidance of the welding wire guide roller 7, so that the welding gun 1604 can put the welding wire 6 into the gap of the part of the carbon steel storage tank that needs to be welded, and the side of the mounting rod 15 A lateral displacement mechanism 12 is installed, and a lifting adjustment mechanism 8 is movably installed on the side of the lateral displacement mechanism 12 through a screw structure, and a mounting plate 10 is movably connected to the side of the lifting adjustment mechanism 8 through a screw structure, and a flux barrel 9, a flux discharge control mechanism 11 and a mounting seat 16 are arranged on the other side of the mounting plate 10 from top to bottom, the lower end outlet of the flux barrel 9 is inserted in the flux discharge control mechanism 11, and the lower end of the flux discharge control mechanism 11 is connected to the flux discharge nozzle 1601 through a hose, this structure enables the flux to reach the flux discharge nozzle 1601 from the flux barrel 9 through the control of the flux discharge control mechanism 11, so that the flux can bury the welding wire 6 placed in the gap so that the conductive nozzle 1603 and the flux match The welding wire 6 is combined to weld the carbon steel storage tank, and the mounting seat 16 is provided with a mounting cover 14 with an oblique structure at the bottom, and a flux recovery pipe 13 is provided on the lower end side of the oblique mouth of the mounting cover 14, and the upper end side of the oblique mouth of the mounting cover 14 is close to the camera 1602, the upper end of the flux recovery pipe 13 is connected with the flux barrel 9 through the suction pump structure, and the lower end of the flux recovery pipe 13 is plugged and fixed with a square-structured flux recovery nozzle 1301, and the lower end plane of the flux recovery nozzle 1301 is lower than the lower end plane of the mounting cover 14. This structure prevents the mounting cover 14 from falling into other areas through the oblique structure at the bottom of the mounting cover 14, so that the flux can be recovered through the flux recovery nozzle 1301. The camera 1602 is an existing surveillance camera The structure is used to understand the welding situation in real time, and the flux discharge nozzle 1601, the welding gun 1604, the conductive nozzle 1603 and the camera 1602 are installed side by side at the lower end of the mounting seat 16. The fixing parts 1403 are respectively welded and fixed to the outside of the opposite sides of the mounting cover 14, and the limiting column 1404 is bolted between the fixing parts 1403. The limiting column 1404 is movably sleeved with a fixing plate 1401, and the limiting column 1404 is also penetrated by a spring 1405 on the upper and lower sides of the fixing plate 1401, and the two ends of the spring 1405 are respectively fixed with screws to the fixing plate 1401 and the fixing part 1403. This structure allows the fixing plate 1401 to be lifted and lowered under the limit of the limiting column 1404, and the spring 1405 is compressed to move during the lifting process.The fixing piece 1403 plays a role in firmly positioning the limit column 1404. The fixing plate 1401 is a bent piece, and the side of the fixing plate 1401 is fixed with a roller 1402 through a rotating rod. This structure can automatically lift and adjust the fixing plate 1401 under the action of the spring 1405, so that the roller 1402 can always be supported on the carbon steel storage tank to ensure the stability of the carbon steel storage tank, so as to ensure the welding quality of the carbon steel storage tank. The mounting seat 16 can realize submerged arc welding of carbon steel storage tanks of different sizes through the lifting and adjusting mechanism 8 and the lateral adjustment of the lateral displacement mechanism 12.

[0020] Working principle: When using the submerged arc welding device for carbon steel storage tanks, first, the welding device body 1 forms a liftable frame structure through the upper mounting frame 3 and the lower movable frame 4, and the mounting rod 15 is firmly mounted on the frame structure through the frame top plate 2. When performing submerged arc welding on the carbon steel storage tank, the mounting seat 16 adjusts the lateral position through the lateral displacement mechanism 12, and then adjusts the height of the mounting plate 10 through the lifting adjustment mechanism 8, so that the mounting cover 14 is just placed above the gap of the carbon steel storage tank that needs to be welded. At the same time, the roller 1402 is supported on the carbon steel storage tank. Since the roller 1402 moves under the limit of the limit column 1404 through the fixing plate 1401, the roller 1402 is firmly supported by the compression spring 1405, and the fixing part 1403 is used for the firm positioning of the limit column 1404. When the carbon steel storage tank rolls through the roller, the welding gun 1604 places the welding wire 6 in the gap that needs to be welded, and the welding wire reel 5 plays the role of discharging the welding wire 6, and cooperates with the welding wire guide roller 7 to guide the welding wire 6. At the same time, the flux discharge control mechanism 11 controls the flux in the flux barrel 9 to be discharged from the flux discharge nozzle 1601, burying the welding wire 6 in the welding seam. At this time, the conductive nozzle 1603, with the cooperation of the flux, welds the welding wire 6 to the carbon steel storage tank, realizes the welding and fixing of the carbon steel storage tank, and the mounting cover 14 collects the flux, so that the flux can be smoothly extracted through the flux recovery nozzle 1301, and then recovered into the flux barrel 9 by the flux recovery pipe 13, and the camera 1602 monitors the welding situation in real time, thereby completing a series of tasks.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A submerged arc welding device for a carbon steel storage tank, comprising a welding device body (1), characterized in that: The welding device body (1) is provided with an upper mounting frame (3) and a lower movable frame (4) connected by a lifting mechanism, and a frame top plate (2) is fixed to the upper end of the upper mounting frame (3), and a mounting rod (15) is connected to the side of the frame top plate (2), a lateral displacement mechanism (12) is installed on the side of the mounting rod (15), and a lifting adjustment mechanism (8) is movably installed on the side of the lateral displacement mechanism (12) through a screw structure, and a mounting plate (10) is movably connected to the side of the lifting adjustment mechanism (8) through a screw structure, and a flux barrel (9), a flux discharge control mechanism (11) and a mounting seat (16) are arranged in sequence on the other side of the mounting plate (10) from top to bottom, and a mounting cover (14) with a bottom having an oblique structure is provided on the upper cover of the mounting seat (16), and a flux discharge nozzle (1601), a welding gun (1604), a conductive nozzle (1603) and a camera (1602) are installed side by side at the lower end of the mounting seat (16).

2. A submerged arc welding device for carbon steel storage tanks according to claim 1, characterized in that: A welding wire reel (5) is mounted on the upper end of the frame top plate (2), and welding wire (6) is arranged in the welding wire reel (5). A welding wire guide roller (7) matching with the welding wire (6) is bolted to the welding wire reel (5) and the side of the mounting plate (10).

3. A submerged arc welding device for carbon steel storage tanks according to claim 1, characterized in that: The outlet at the lower end of the flux barrel (9) is inserted into the flux discharge control mechanism (11), and the lower end of the flux discharge control mechanism (11) is connected to the flux discharge nozzle (1601) via a hose.

4. A submerged arc welding device for carbon steel storage tanks according to claim 1, characterized in that: A flux recovery pipe (13) is provided on the lower end of the oblique opening of the mounting cover (14), and the upper end of the oblique opening of the mounting cover (14) is close to the camera (1602). The upper end of the flux recovery pipe (13) is connected to the flux barrel (9) via a pump structure, and a square-structured flux recovery nozzle (1301) is inserted and fixed at the lower end of the flux recovery pipe (13), and the lower end plane of the flux recovery nozzle (1301) is lower than the lower end plane of the mounting cover (14).

5. A submerged arc welding device for carbon steel storage tanks according to claim 1, characterized in that: The outsides of the mounting cover (14) are respectively welded and fixed with fixing parts (1403) on opposite sides, and a limiting column (1404) is fixed by bolts between the fixing parts (1403), a fixing plate (1401) is movably sleeved on the limiting column (1404), and a spring (1405) is also passed through the limiting column (1404) on both sides of the fixing plate (1401), and the two ends of the spring (1405) are respectively fixed to the fixing plate (1401) and the fixing part (1403) by screws.

6. A submerged arc welding device for carbon steel storage tanks according to claim 5, characterized in that: The fixing plate (1401) is a bent piece, and a roller (1402) is fixed to the side of the fixing plate (1401) via a rotating rod.

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