Submerged-arc welding device for metal pressure vessel

Abstract

The utility model discloses a submerged-arc welding device for a metal pressure vessel, and belongs to the technical field of submerged-arc welding devices, the submerged-arc welding device comprises a welding frame and automatic submerged-arc welding equipment, the welding frame is provided with a to-be-welded vessel, a recycling box is arranged below the welding position of the to-be-welded vessel, and the recycling box comprises a box body shell; a recovery bent plate is fixedly arranged above the box shell, a material guide vertical plate is fixedly arranged at the bottom end of the recovery bent plate, a diversion structure is fixedly arranged below the material guide vertical plate, a welding flux recovery drawer is slidably arranged at the bottom of the left side in the box shell, and a slag collection drawer is slidably arranged at the bottom of the right side in the box shell. The welding flux recovery drawer and the slag collection drawer can be used for collecting fallen welding flux and cleaned slag correspondingly, and welding flux waste and pollution possibly caused by the slag can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of submerged arc welding devices, and in particular to a submerged arc welding device for a metal pressure vessel. Background Art

[0002] Submerged arc welding (including submerged arc cladding and electroslag cladding) is a welding method in which the arc burns under the flux layer. Its inherent advantages such as stable welding quality, high welding productivity, no arc light and little smoke make it the main welding method in the production of important steel structures such as pressure vessels, pipe section manufacturing, box beams and columns. In recent years, although many new high-efficiency and high-quality welding methods have emerged, the application field of submerged arc welding has not been affected in any way. From the perspective of the share of the weight of the deposited metal of various fusion welding methods, submerged arc welding accounts for about 10%, and has not changed much over the years.

[0003] When welding the curved surface of a pressure vessel, the existing submerged arc welding device usually adopts a method in which the welding head is stationary and the pressure vessel rotates, and the welding work of a circle of its curved surface is completed by the rotation of the pressure vessel itself. However, when this method is implemented, the granular solder cannot be stably supported when it falls on the curved surface and is easy to slide, resulting in a waste of solder. Of course, some devices are equipped with a solder absorption and recovery mechanism, but the cost is high and cannot ensure the complete recovery of the solder. At the same time, when the slag is cleaned after the welding is completed, the slag will also fall to the ground and cause pollution. Therefore, in view of the above problems, a submerged arc welding device for a metal pressure vessel is proposed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present application provides a submerged arc welding device for metal pressure vessels, which overcomes the deficiencies of the prior art and aims to solve the problem that the welding device lacks effective recovery measures for solder and slag.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A submerged arc welding device for a metal pressure vessel comprises a welding frame and automatic submerged arc welding equipment, wherein a container to be welded is mounted on the welding frame, a recovery box is arranged below the welding position of the container to be welded, the recovery box comprises a box shell, a recovery curved plate is fixedly arranged above the box shell, a material guide vertical plate is fixedly arranged at the bottom end of the recovery curved plate, a diversion structure is fixedly arranged below the material guide vertical plate, a solder recovery drawer is slidably arranged at the bottom left side of the box shell, and a slag collection drawer is slidably arranged at the bottom right side of the box shell.

[0007] By adopting the above technical scheme, the dropped solder and the cleaned slag can be collected by the solder recovery drawer and the slag collection drawer respectively, so as to avoid the waste of solder and the pollution caused by the slag. In particular, the diversion structure can be manipulated to change the connection object of the current recovery path, that is, the solder recovery drawer can be connected through the diversion structure during welding, and the solder collected by the recovery curved plate will be introduced into the solder recovery drawer. When cleaning the slag, the slag collection drawer can be connected through the diversion structure, and the slag collected by the recovery curved plate will be introduced into the slag collection drawer.

[0008] As a preferred technical solution of the present application, the diversion structure includes a triangular base plate fixedly connected to the inner wall of the box shell, a rotation constraint cylinder is fixedly arranged at the bottom of the triangular base plate, a diversion shaft is rotatably arranged in the rotation constraint cylinder, and an iron diversion folding plate is fixedly connected to the diversion shaft through a connecting piece.

[0009] By adopting the above technical solution, the bottom opening direction of the material guide space surrounded by the material guide vertical plates can be adjusted by a rotatable diversion folding plate, thereby achieving the switching of the material guide space surrounded by the material guide vertical plates in connection with the solder recovery drawer or the slag collection drawer.

[0010] As a preferred technical solution of the present application, both ends of the redirecting shaft extend out of the box shell and one end portion is fixedly connected to a switching hand wheel.

[0011] By adopting the above technical solution, it is convenient for the staff to use the switching hand wheel to control the diversion folding plate to rotate as required.

[0012] As a preferred technical solution of the present application, magnet blocks are fixedly arranged on both sides of the triangular base plate, and a material guide folding plate is fixedly arranged on the outer side surface of the bottom of the triangular base plate.

[0013] By adopting the above technical solution, the corresponding magnet block can be used to adsorb and fix the diverting folding plate when it turns to one side, thereby ensuring the stability of the current path and preventing the diverting folding plate from rotating under the impact of the material and affecting the effective implementation of the classification and collection work.

[0014] As a preferred technical solution of the present application, the welding frame includes two side frame plates arranged side by side, a chuck is rotatably arranged on the side frame plate on one side through a rotating shaft, and a threaded rod is threadedly connected to the top of the side frame plate on the other side, and the chuck is rotatably connected to the front end of the threaded rod.

[0015] By adopting the above technical solution, the clamping plates on both sides can clamp and fix the central container to be welded. In particular, the distance between the two clamping plates can be changed by twisting the threaded rod, which can meet the fixing work of containers to be welded of different sizes.

[0016] As a preferred technical solution of the present application, a driving motor is arranged between the side frame plates, the output shaft of the driving motor is fixedly connected to a transmission wheel, a driven wheel is fixedly sleeved on the rotating shaft, and a transmission belt is arranged on the transmission wheel and the driven wheel outer sleeve.

[0017] By adopting the above technical solution, the driving motor can drive the transmission wheel to rotate, and the driven wheel can follow the rotation under the transmission action of the transmission belt, thereby driving the rotating shaft to rotate, so that the container to be welded in the middle of the two chucks rotates to complete the welding work.

[0018] As a preferred technical solution of the present application, the driven wheel is provided with an anti-slip groove having the same width as the transmission belt, and the outer surface of the transmission wheel is fixedly provided with a plurality of convex anti-slip grooves.

[0019] By adopting the above technical solution, it is possible to prevent relative sliding between the transmission belt and the driven wheel and the transmission wheel, thereby preventing the transmission effect from being affected.

[0020] As a preferred technical solution of the present application, the end of the threaded rod away from the upper chuck is fixedly connected to a locking handwheel.

[0021] By adopting the above technical solution, it is convenient for workers to screw the threaded rod.

[0022] The beneficial effects of the present application are as follows: the dropped solder and the cleaned slag can be collected in the solder recovery drawer and the slag collection drawer respectively, thereby avoiding the waste of solder and the possible pollution caused by the slag. By manipulating the diversion structure to change the connection object of the current recovery path, the solder recovery drawer can be connected through the diversion structure during welding, and the solder collected by the recovery curved plate will be introduced into the solder recovery drawer. When cleaning the slag, the slag collection drawer can be connected through the diversion structure, and the slag collected by the recovery curved plate will be introduced into the slag collection drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the recycling bin structure of this application;

[0025] Figure 3 This is a schematic diagram of the diversion structure of this application;

[0026] Figure 4 This is a schematic diagram of the welding frame structure of this application.

[0027] In the figure: 1. welding frame; 11. side frame plate; 12. chuck; 121. rotating shaft; 13. threaded rod; 131. locking handwheel; 14. driving motor; 15. transmission wheel; 16. driven wheel; 17. transmission belt; 2. automatic submerged arc welding equipment; 3. container to be welded; 4. recovery box; 41. box shell; 42. recovery curved plate; 43. material guide vertical plate; 44. diversion structure; 441. triangular base plate; 442. rotating constraint cylinder; 443. diversion shaft; 444. connecting piece; 445. diversion folding plate; 446. switching handwheel; 447. magnet block; 448. material guide folding plate; 45. solder recovery drawer; 46. slag collection drawer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Reference Figure 1-2 A submerged arc welding device for a metal pressure vessel comprises a welding frame 1 and an automatic submerged arc welding device 2, a container to be welded 3 is mounted on the welding frame 1, a recovery box 4 is arranged below the welding position of the container to be welded 3, the recovery box 4 comprises a box shell 41, a recovery curved plate 42 is fixedly arranged above the box shell 41, a guide vertical plate 43 is fixedly arranged at the bottom of the recovery curved plate 42, a diversion structure 44 is fixedly arranged below the guide vertical plate 43, a solder recovery drawer 45 is slidably arranged at the bottom left of the box shell 41, and a slag collection drawer 46 is slidably arranged at the bottom right of the box shell 41, which can The solder recovery drawer 45 and the slag collection drawer 46 can be used to collect the dropped solder and the cleaned slag respectively, so as to avoid the waste of solder and the pollution that may be caused by the slag. In particular, the diversion structure 44 can be manipulated to change the connection object of the current recovery path. That is, the solder recovery drawer 45 can be connected through the diversion structure 44 during welding, and the solder collected by the recovery curved plate 42 will be introduced into the solder recovery drawer 45. When cleaning the slag, the slag collection drawer 46 can be connected through the diversion structure 44, and the slag collected by the recovery curved plate 42 will be introduced into the slag collection drawer 46.

[0030] Reference Figure 3The redirection structure 44 includes a triangular base plate 441 fixedly connected to the inner wall of the box shell 41, a rotation constraint cylinder 442 is fixedly arranged at the bottom of the triangular base plate 441, a redirection shaft 443 is rotatably arranged in the rotation constraint cylinder 442, and an iron redirection folding plate 445 is fixedly connected to the redirection shaft 443 through a connecting piece 444. By adopting the above technical scheme, the bottom opening direction of the material guide space surrounded by the material guide vertical plate 43 can be adjusted by the rotatable redirection folding plate 445, so as to realize the switching of the material guide space surrounded by the material guide vertical plate 43 in the connection with the solder recovery drawer 45 or the slag collection drawer 46. In particular, both ends of the redirection shaft 443 extend out of the box shell 41 and one end of one section is fixedly connected to a switching hand wheel 446. This structural form can facilitate the staff to use the switching hand wheel 446 to operate the redirection folding plate 445 to rotate as required.

[0031] Reference Figure 3 Magnet blocks 447 are fixedly provided on both sides of the triangular base plate 441, and a material guide folding plate 448 is fixedly provided on the outer side of the bottom of the triangular base plate 441. By adopting the above technical scheme, the corresponding magnet block 447 can be used to adsorb and fix the redirecting folding plate 445 when it turns to one side, thereby ensuring the stability of the current passage and preventing the redirecting folding plate 445 from rotating under the impact of the material and affecting the effective implementation of the classification and collection work.

[0032] Reference Figure 4 The welding frame 1 includes two side frame plates 11 arranged side by side, a chuck 12 is rotatably provided on the side frame plate 11 on one side through a rotating shaft 121, and a threaded rod 13 is threadedly connected to the top of the side frame plate 11 on the other side, and the front end of the threaded rod 13 is rotatably connected to the chuck 12, so that the chucks 12 on both sides can clamp and fix the container 3 to be welded in the middle. In particular, the spacing between the two chucks 12 can be changed by twisting the threaded rod 13, so as to meet the fixing work of the containers 3 to be welded of different sizes. In addition, a locking handwheel 131 is fixedly connected to the end of the threaded rod 13 away from the upper chuck 12, which can facilitate the staff to twist the threaded rod 13.

[0033] Reference Figure 4A driving motor 14 is arranged between the side frame plates 11, and the output shaft of the driving motor 14 is fixedly connected to a transmission wheel 15. A driven wheel 16 is fixedly sleeved on the rotating shaft 121, and a transmission belt 17 is arranged outside the transmission wheel 15 and the driven wheel 16. By adopting the above technical scheme, the driving motor 14 can drive the transmission wheel 15 to rotate, and the driven wheel 16 follows the rotation under the transmission action of the transmission belt 17, thereby driving the rotating shaft 121 to rotate, so that the container 3 to be welded in the middle of the two chucks 12 rotates to complete the welding work. In particular, an anti-slip groove with the same width as the transmission belt 17 is opened on the driven wheel 16, and a plurality of convex anti-slip grooves are fixedly arranged on the outer surface of the transmission wheel 15. This structural form can prevent the transmission belt 17 from sliding relative to the driven wheel 16 and the transmission wheel 15, thereby affecting the transmission effect.

[0034] Working principle: The solder recovery drawer 45 and the slag collection drawer 46 are respectively used to collect the dropped solder and the cleaned slag, thereby avoiding the waste of solder and the pollution that may be caused by the slag; when welding, the solder recovery drawer 45 is connected through the diversion structure 44, and the solder collected by the recovery curved plate 42 will be introduced into the solder recovery drawer 45. When cleaning the slag, the slag collection drawer 46 is connected through the diversion structure 44, and the slag collected by the recovery curved plate 42 will be introduced into the slag collection drawer 46.

[0035] In the diversion structure 44, the bottom opening direction of the material guiding space surrounded by the material guiding vertical plates 43 can be adjusted by the rotatable diversion folding plate 445, so as to realize the switching of the material guiding space surrounded by the material guiding vertical plates 43 in connection with the solder recovery bin 45 or the slag collection bin 46. In particular, when the diversion folding plate 445 turns to one side, the corresponding magnet block 447 arranged on the triangular base plate 441 will adsorb and fix it, so as to ensure the stability of the current passage and prevent the diversion folding plate 445 from rotating under the impact of the material and affecting the effective implementation of the classification and collection work.

[0036] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A submerged arc welding device for a metal pressure vessel, comprising a welding frame (1) and an automatic submerged arc welding device (2), characterized in that: A container to be welded (3) is mounted on the welding frame (1); a recovery box (4) is arranged below the welding position of the container to be welded (3); the recovery box (4) comprises a box shell (41); a recovery curved plate (42) is fixedly arranged above the box shell (41); a material guide vertical plate (43) is fixedly arranged at the bottom end of the recovery curved plate (42); a diversion structure (44) is fixedly arranged below the material guide vertical plate (43); a solder recovery drawer (45) is slidably arranged at the bottom left of the box shell (41); and a slag collection drawer (46) is slidably arranged at the bottom right of the box shell (41).

2. A submerged arc welding device for metal pressure vessels according to claim 1, characterized in that: The redirection structure (44) comprises a triangular base plate (441) fixedly connected to the inner wall of the box shell (41); a rotation constraint cylinder (442) is fixedly arranged at the bottom of the triangular base plate (441); a redirection shaft (443) is rotatably arranged in the rotation constraint cylinder (442); and an iron redirection folding plate (445) is fixedly connected to the redirection shaft (443) via a connecting piece (444).

3. A submerged arc welding device for metal pressure vessels according to claim 2, characterized in that: Both ends of the redirection shaft (443) extend out of the box housing (41), and one end portion is fixedly connected to a switching hand wheel (446).

4. A submerged arc welding device for metal pressure vessels according to claim 2, characterized in that: Magnet blocks (447) are fixedly arranged on both sides of the triangular base plate (441), and a material guide folding plate (448) is fixedly arranged on the outer side surface of the bottom of the triangular base plate (441).

5. The submerged arc welding device for metal pressure vessels according to claim 1, characterized in that: The welding frame (1) comprises two side frame plates (11) arranged side by side, a chuck (12) being rotatably arranged on the side frame plate (11) on one side via a rotating shaft (121), a threaded rod (13) being threadedly connected to the top of the side frame plate (11) on the other side, and the chuck (12) being rotatably connected to the front end of the threaded rod (13).

6. A submerged arc welding device for metal pressure vessels according to claim 5, characterized in that: A driving motor (14) is arranged between the side frame plates (11); an output shaft of the driving motor (14) is fixedly connected to a transmission wheel (15); a driven wheel (16) is fixedly sleeved on the rotating shaft (121); and a transmission belt (17) is sleeved on the transmission wheel (15) and the driven wheel (16).

7. A submerged arc welding device for metal pressure vessels according to claim 6, characterized in that: The driven wheel (16) is provided with an anti-slip groove having a width equal to that of the transmission belt (17), and the outer surface of the transmission wheel (15) is fixedly provided with a plurality of outwardly convex anti-slip grooves.

8. A submerged arc welding device for metal pressure vessels according to claim 5, characterized in that: One end of the threaded rod (13) away from the upper chuck (12) is fixedly connected to a locking hand wheel (131).

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