A welding equipment for processing mine high-voltage vacuum electromagnetic starter

Abstract

The application provides a welding device for processing of a mine-used high-voltage vacuum electromagnetic starter, relates to the field of welding technology, and comprises a control box body, a hose, a handle and a gun barrel. One end of the hose is detachably connected with the control box body, the other end of the hose is communicated with the handle, and the gun barrel is fixedly connected with the handle. An inner layer pipe and a wire feeding pipe are arranged in the gun barrel, the axes of the gun barrel, the inner layer pipe and the wire feeding pipe are coincident, and the inner layer pipe is sleeved on the wire feeding pipe. The welding device for processing of the mine-used high-voltage vacuum electromagnetic starter is provided with the inner layer pipe, the wire feeding pipe, the gun head pipe, the rotating structure and the air outlet pipe, so that a conical air wall can be formed around the welding position during the welding process. When the spatter reaches the conical air wall position, the movement track of the spatter can be changed, the spatter range can be reduced, the cleaning and arrangement are facilitated, the accidental accidents caused by the spatter can be reduced, the air wall can also have the effect of cooling the spatter, and the possibility of adhesion of the spatter can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding technology, in particular to a welding equipment for processing of mine high-voltage vacuum electromagnetic starter. BACKGROUND

[0002] The mine high-voltage vacuum electromagnetic starter is an electrical equipment widely used in dangerous places such as coal mines, and its main structural components include an explosion-proof housing, generally in cylindrical or square structure, and equipped with a quick-opening door design, such as QBZ-120 high-voltage vacuum electromagnetic starter, the shell of which can effectively prevent sparks and high temperature generated by internal electrical components from spreading to the surrounding explosive gas environment, ensuring the safety of mine production; internal components: mainly including an AC vacuum contactor, a disconnector, control buttons, a control transformer, a motor comprehensive protector, a resistance-capacitance protection device, etc. These components work together to realize the control and protection functions of the motor. For example, the AC vacuum contactor is used to turn on and off the main circuit of the motor, and has the advantages of strong arc extinguishing ability and long service life; the motor comprehensive protector can detect and protect the motor from overload, short circuit, open phase, and leakage.

[0003] The explosion-proof housing is usually made of metal materials with high strength and explosion-proof performance, such as cast steel or steel plate, and the steel plates are welded together. During welding, carbon dioxide gas shielded welding equipment is usually used to weld the steel plates and other parts. However, excessive spatter often occurs during welding, which can reduce the quality of the weld: the spatter may adhere to the surface of the weld or mix into the weld, causing uneven weld, slag inclusion, and other defects, affecting the mechanical properties and sealing performance of the weld; increase the difficulty of cleaning: excessive spatter requires more time and effort to clean, increasing the workload of subsequent processing; affect the appearance: spatter can make the weld and surrounding area look unsightly, affecting the overall appearance quality of the product; and may also damage surrounding equipment or components: spatter may fall on nearby equipment, tools or workpieces, causing damage or affecting their normal use. SUMMARY

[0004] Based on the technical problems in the background art, the present application provides a welding equipment for processing of mine high-voltage vacuum electromagnetic starter.

[0005] The welding equipment for processing of mine high-voltage vacuum electromagnetic starter provided by the present application comprises a control box main body, a hose, a handle and a gun barrel, one end of the hose is detachably connected with the control box main body, the other end of the hose is communicated with the handle, and the gun barrel is fixedly connected with the handle.

[0006] The gun barrel is internally provided with an inner layer pipe and a wire feeding pipe, the axes of the gun barrel, the inner layer pipe and the wire feeding pipe are coincident, the inner layer pipe is sleeved on the wire feeding pipe, the gun barrel is sleeved on the inner layer pipe, there is a gap between the inner wall of the gun barrel and the outer periphery of the inner layer pipe, there is a gap between the inner wall of the inner layer pipe and the outer periphery of the wire feeding pipe, the end of the gun barrel and the end of the inner layer pipe are flush, the end of the wire feeding pipe extends to the outer periphery of the inner layer pipe, a gun head pipe is sleeved on one end of the outer periphery of the inner layer pipe, the axis of the gun head pipe is coincident with the axis of the wire feeding pipe, there is a spacing between the end of the gun head pipe and the end of the gun barrel, a rotating structure is rotatably arranged in the spacing, the rotating structure can block the spacing between the end of the gun head pipe and the end of the gun barrel, the rotating structure can block the gap between the end of the inner layer pipe and the end of the wire feeding pipe, a plurality of gas outlet pipes are circumferentially arranged on the blocking structure, when the space between the inner layer pipe and the wire feeding pipe is filled with carbon dioxide gas, the carbon dioxide gas can be sprayed out through the gas outlet pipes, and the sprayed carbon dioxide gas can drive the rotating structure to rotate, the carbon dioxide sprayed out of the gas outlet pipes forms a conical gas wall, and the conical gas wall can cover the gun head pipe.

[0007] Preferably, the rotating structure comprises a first sleeve, an annular plate, a second sleeve and a third sleeve; the first sleeve is rotatably sleeved on the inner layer pipe, the annular plate is fixedly connected to the end of the first sleeve, the second sleeve is fixedly connected to one side of the annular plate close to the first sleeve, the gun barrel is sleeved on the second sleeve, the gas outlet pipe is arranged on the second sleeve, the third sleeve is fixedly arranged on the other side of the annular plate away from the second sleeve, and the gun head pipe is sleeved on the third sleeve.

[0008] An adjusting assembly is arranged on the second sleeve, and the adjusting assembly can adjust the inclination angle of the gas outlet pipe on the second sleeve.

[0009] Preferably, the rotating structure further comprises a sleeve ring and a plurality of fan leaves; the sleeve ring is sleeved on the wire feeding pipe, the plurality of fan leaves are arranged in an annular array on the outer periphery of the sleeve ring, and one end of each fan leaf away from the sleeve ring is fixedly connected to the inner circumferential wall of the annular plate.

[0010] Preferably, the adjusting assembly comprises a first gear, a second gear and a flexible sealing film; the outer periphery of the second sleeve is provided with a movable hole, the gas outlet pipe is rotatably arranged in the movable hole, the gas outlet pipe is always located in the movable hole, the first gear is fixedly arranged on the rotating shaft of the gas outlet pipe, the second gear is rotatably arranged in the second sleeve and engaged with the first gear, part of the second gear is located outside the second sleeve, a plurality of annular gear grooves are equidistantly arranged on the inner wall of the gun barrel, and the second gear is engaged with the inner wall of the gun barrel.

[0011] The flexible sealing film is used to block the gap between the gas outlet pipe and the movable hole.

[0012] Preferably, in the initial state, the second sleeve is completely accommodated in the barrel, and the barrel can cover the movable hole on the second sleeve.

[0013] Preferably, when the space between the barrel and the inner tube is filled with carbon dioxide gas, the first sleeve, the annular plate and the second sleeve can be driven to slide in the space between the end of the gun head tube and the end of the barrel, and the gas outlet end of the gas outlet tube can be exposed during the sliding of the second sleeve.

[0014] The gun head tube is provided with a reset structure for driving the first sleeve, the annular plate and the second sleeve to slide and reset.

[0015] Preferably, the reset structure comprises a driving plate, a limiting rod, a reset spring and a movable ball; a support frame is fixedly installed between the wire feeding tube and the gun head tube, the driving plate abuts against the side of the annular plate away from the first sleeve, one end of the limiting rod is fixedly connected to the side of the driving plate away from the annular plate, the limiting rod slides through the support frame, and the two ends of the reset spring are connected with the driving plate and the support frame, respectively.

[0016] A ball groove is formed in the driving plate and rotationally matched with the movable ball, the movable ball is rotationally installed in the ball groove, and the movable ball is rollingly matched with the side of the annular plate away from the first sleeve.

[0017] Preferably, a conical sleeve is threadedly connected to the end of the gun head tube, and the end of the wire feeding tube extends into the conical sleeve.

[0018] The mining high-voltage vacuum electromagnetic starter processing welding equipment has the following advantages: the inner tube, the wire feeding tube, the gun head tube, the rotating structure and the gas outlet tube are arranged, a conical gas wall is formed around the welding position during welding, the movement track of the spatter is changed when the spatter reaches the conical gas wall position, the spatter range is reduced, cleaning and maintenance are facilitated, accidental accidents caused by the spatter are reduced, the gas wall also has a cooling effect on the spatter, and the possibility of spatter adhesion is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the mining high-voltage vacuum electromagnetic starter processing welding equipment.

[0020] Figure 2 It is a structure schematic view of the handle, the barrel, the gun head tube and other components of the mining high-voltage vacuum electromagnetic starter processing welding equipment.

[0021] Figure 3A sectional view of a gun barrel and a gun head pipe in a welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application;

[0022] Figure 4 A welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application Figure 3 An enlarged view of A in the welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application;

[0023] Figure 5 A structure diagram of a plugging structure in the welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application;

[0024] Figure 6 A side sectional view of the plugging structure in the welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application;

[0025] Figure 7 A top sectional view of the plugging structure in the welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application;

[0026] Figure 8 A sectional view of an air outlet pipe in a movable hole of a second sleeve in the welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application;

[0027] Figure 9 A welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application Figure 7 An enlarged view of B in the welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application;

[0028] Figure 10 A structure diagram of a reset structure in the welding equipment for processing a mine high-voltage vacuum electromagnetic starter according to the present application.

[0029] In the figure: 1, control box main body; 2, hose; 3, handle; 4, gun barrel; 5, inner pipe; 6, wire feeding pipe; 7, gun head pipe; 8, air outlet pipe; 9, first sleeve; 10, annular plate; 11, second sleeve; 12, third sleeve; 13, sleeve ring; 14, fan blade; 15, first gear; 16, second gear; 17, flexible sealing film; 18, jacking plate; 19, limiting rod; 20, reset spring; 21, movable ball; 22, conical sleeve. DETAILED DESCRIPTION

[0030] REFERENCE Figures 1-10The application provides a welding equipment for mining high-voltage vacuum electromagnetic starter processing, which comprises a control box main body 1, a hose 2, a handle 3 and a gun barrel 4, the control box main body 1 comprises a control box, a wire feeding mechanism, a flow meter, a pressure reducing gauge, a welding power supply and other prior art technologies, one end of the hose 2 is detachably connected with the control box main body 1, the other end of the hose 2 is communicated with the handle 3, the gun barrel 4 is fixedly connected on the handle 3, the hose 2 is a wire feeding hose, in actual conditions, there are also two carbon dioxide conveying pipes, both of the two conveying pipes convey carbon dioxide gas into the gun barrel 4, one of the carbon dioxide gas forms a gas protection layer in the welding process, prevents oxygen, nitrogen and other gases in the air from invading the molten pool, avoids the welding seam metal from being oxidized and nitrided, also helps to maintain the stability of the electric arc, makes the welding process more stable, promotes the uniform filling of the welding seam metal and improves the quality and appearance of the welding seam; in actual conditions, when the carbon dioxide gas shielded welding equipment is used for welding, the spatter may be caused due to metallurgical factors (droplet transfer characteristics: short circuit transfer or large droplet transfer is usually adopted in carbon dioxide gas shielded welding, the droplet transfer process is unstable and easy to cause spatter; metal vapor explosion: in the droplet transfer process, the pressure of metal vapor suddenly increases and may cause metal vapor explosion, leading to spatter) and physical factors (arc force: electromagnetic force, plasma flow force and other welding arc forces act on the droplet, make it deviate from the normal transition track, thereby causing spatter; improper polarity selection: when the direct current is reversely connected, the welding wire is the cathode and large spatter is caused), the spatter in the welding process refers to the metal particles or droplets scattered from the molten pool, the spatter causes various adverse effects, there are many terminal posts on the outer surface of the explosion-proof shell of the mining high-voltage vacuum electromagnetic starter, when the spatter is cleaned, great obstruction is caused, in addition, one of the carbon dioxide gas performs the treatment of cooling and blocking the sputtered metal particles and slag, and the treatment is as follows.

[0031] As Figure 1 , Figure 2 and Figure 3As shown in the figure, the inner layer pipe 5 and the wire feeding pipe 6 are installed in the barrel 4, the axes of the barrel 4, the inner layer pipe 5 and the wire feeding pipe 6 coincide, the inner layer pipe 5 is sleeved on the wire feeding pipe 6, the barrel 4 is sleeved on the inner layer pipe 5, there is a gap between the inner wall of the barrel 4 and the outer periphery of the inner layer pipe 5, the barrel 4 and the inner layer pipe 5 are fixedly installed through a No.1 support, a channel formed between the barrel 4 and the inner layer pipe 5 is used for conveying carbon dioxide gas for cooling and blocking splashes, there is a gap between the inner wall of the inner layer pipe 5 and the outer periphery of the wire feeding pipe 6, the inner layer pipe 5 and the wire feeding pipe 6 are fixedly installed through a No.2 support, meanwhile, a gap channel between the inner layer pipe 5 and the wire feeding pipe 6 is used for conveying another carbon dioxide gas to form a welding protective layer during welding, the end of the barrel 4 is flush with the end of the inner layer pipe 5, the end of the wire feeding pipe 6 extends to the outside of the inner layer pipe 5, a gun head pipe 7 is sleeved on one end of the wire feeding pipe 6 outside the inner layer pipe 5, the axis of the gun head pipe 7 coincides with the axis of the wire feeding pipe 6, there is a spacing between the end of the gun head pipe 7 and the end of the barrel 4, a rotating structure is rotatably installed in the spacing, the rotating structure can block the spacing between the end of the gun head pipe 7 and the end of the barrel 4, the rotating structure can block the gap between the ends of the inner layer pipe 5 and the wire feeding pipe 6, a plurality of gas outlet pipes 8 are installed on the blocking structure in the circumferential direction, when the space between the inner layer pipe 5 and the wire feeding pipe 6 is filled with carbon dioxide gas, the carbon dioxide gas can be sprayed out through the gas outlet pipes 8, and the sprayed carbon dioxide gas can drive the blocking structure to rotate, the carbon dioxide gas sprayed out of the gas outlet pipes 8 forms a conical gas wall, and the conical gas wall can cover the gun head pipe 7, a conical sleeve 22 is threadedly connected to the end of the gun head pipe 7, the end of the wire feeding pipe 6 extends into the conical sleeve 22, in the specific operation process, the welding wire is conveyed out of the conical sleeve 22 in the wire feeding pipe 6, so that the welding wire and the explosion-proof shell are in contact, the welding wire and the base material are melted and mixed together through the electric arc, the carbon dioxide gas is sprayed out of the nozzle at a certain flow rate (the carbon dioxide gas is conveyed from the channel between the wire feeding pipe 6 and the inner layer pipe 5 into the gun head pipe 7, so that the carbon dioxide gas is discharged through the opening of the conical sleeve 22 at the end of the gun head pipe 7), a gas protection layer is formed around the electric arc to isolate air from the welding area and prevent oxygen, nitrogen and other gases in the air from having adverse effects on the molten pool;When another high-pressure gas is filled into the channel between the barrel 4 and the inner tube 5, the high-pressure carbon dioxide gas is discharged from the gas outlet pipe 8 (the gas outlet pipe 8 is arranged obliquely, and after the high-pressure carbon dioxide gas is sprayed from the gas outlet pipe 8, a relative reaction is generated to make the gas outlet pipe 8 and the blocking structure rotate), in the process of rotation, the carbon dioxide gas column sprayed from the gas outlet pipe 8 forms a conical gas wall, when the splashes reach the position of the conical gas wall, they are blown by the gas wall, the carbon dioxide gas wall impacts the splashes, slows down the impact force of the splashes, changes the flight path of the splashes, makes the falling range of the splashes smaller, reduces the impact of the splashes on the surrounding environment, at the same time, guides the splashes to move more concentratedly in a specific direction, facilitates collection and cleaning, at the same time, the flowing carbon dioxide gas wall can have a cooling effect on the splashes, can reduce the temperature to reduce the possibility of the splashes adhering to the surrounding objects, making the cleaning work easier, in addition, the splashes with lower temperature are relatively less likely to cause fire or other safety problems, in actual situations, since the use of solid shields in many positions during welding of the explosion-proof shell will hinder the welding work, the use of the carbon dioxide gas wall can be suitable for many complex environments.

[0032] As shown in Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the rotating structure comprises a first sleeve 9, an annular plate 10, a second sleeve 11 and a third sleeve 12; the first sleeve 9 is rotatably sleeved on the inner tube 5, the annular plate 10 is fixedly connected to the end of the first sleeve 9, the second sleeve 11 is fixedly connected to the side of the annular plate 10 close to the first sleeve 9, the barrel 4 is sleeved on the second sleeve 11, the gas outlet pipe 8 is installed on the second sleeve 11, the third sleeve 12 is fixedly installed on the side of the annular plate 10 away from the second sleeve 11, and the barrel head pipe 7 is sleeved on the third sleeve 12; the second sleeve 11 is provided with an adjusting assembly, the adjusting assembly can adjust the inclination angle of the gas outlet pipe 8 on the second sleeve 11, in actual situations, there are many factors that cause splashes, such as mismatched current and voltage, improper polarity selection, surface condition of the base material, etc., so the number of splashes is different in actual situations, and at the same time, the size of the conical gas wall needs to be adjusted according to the welding environment, when there are many terminal posts around the explosion-proof shell, the size of the conical gas wall can be adjusted to protect the terminal posts, reduce the splashes on the terminal posts, and the adjustment can be made according to the welding scene, and the device can also be used normally in some special environments, such as corner positions.

[0033] As shown in Figure 3 , Figure 4 , Figure 6 and Figure 7As shown in the figure, the rotating structure further comprises a collar 13 and a plurality of leaves 14; the collar 13 is sleeved on the wire feeding pipe 6, the plurality of leaves 14 are arranged in an annular array on the outer periphery of the collar 13, and the ends of the leaves 14 away from the collar 13 are fixedly connected to the inner ring wall of the annular plate 10, so as to ensure the firmness and stability of the plurality of leaves 14; when the protected carbon dioxide gas is discharged, the carbon dioxide gas passes through the leaves 14, and the flow of the gas drives the leaves 14 to do circular motion, so as to ensure the rotation of the plugging structure.

[0034] As Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown in the middle, the adjusting assembly includes a first gear 15, a second gear 16 and a flexible sealing film 17; the outer periphery of the second sleeve 11 is provided with a movable hole, the air outlet pipe 8 is rotatably installed in the movable hole through a rotating shaft, the air outlet pipe 8 is always located in the movable hole, the first gear 15 is fixedly installed on the rotating shaft of the air outlet pipe 8, the second gear 16 is rotatably installed in the second sleeve 11, and the second gear 16 is engaged with the first gear 15, part of the second gear 16 is located outside the second sleeve 11, and the inner wall of the barrel 4 is provided with a plurality of annular tooth grooves at equal intervals, the second gear 16 is engaged with the inner wall of the barrel 4, in the initial state, the second sleeve 11 is completely accommodated in the barrel 4, and the barrel 4 can cover the movable hole on the second sleeve 11, when the space between the barrel 4 and the inner layer pipe 5 is filled with carbon dioxide gas, the first sleeve 9, the annular plate 10 and the second sleeve 11 can slide in the space between the end of the gun head pipe 7 and the end of the barrel 4, and the air outlet end of the air outlet pipe 8 can be exposed during the sliding of the second sleeve 11; in the initial state, the second sleeve 11 is accommodated in the barrel 4, and the opening of the movable hole is also blocked by the inner wall of the barrel 4, the air outlet pipe 8 is located in the movable hole, and the air outlet pipe 8 cannot play the role of air outlet, when the gap channel between the inner layer pipe 5 and the barrel 4 is filled with high-pressure gas, the gas pressure drives the blocking structure to slide, the second sleeve 11 gradually extends in the barrel 4, when the second sleeve 11 extends, the exposed part of the second gear 16 is engaged with the annular tooth groove, so that the second gear 16 rotates, the second gear 16 drives the first gear 15 to rotate, and the first gear 15 drives the air outlet pipe 8 to rotate synchronously, so as to change the inclination angle of the air outlet pipe 8, the extension length of the second sleeve 11 can be controlled according to the change of the gas pressure in the gap channel between the barrel 4 and the inner layer pipe 5, the movable hole is exposed, and the air outlet of the air outlet pipe 8 is also exposed, the high-pressure gas in the gap channel between the inner layer pipe 5 and the barrel 4 is sprayed out through the air outlet pipe 8 to form a gas column, the reaction force generated by the sprayed gas drives the blocking structure and the air outlet pipe 8 to rotate rapidly, so that the gas column rotates to form a conical gas wall, when the splashes pass through the gas wall, they will be impacted by the carbon dioxide gas, the flight path of the splashes will be changed, the splashing range will be reduced, the splashes will be cooled to a certain extent, the possibility of adhesion of high-temperature splashes will be reduced, and the occurrence of accidents will be reduced.

[0035] As shown in Figure 6 , Figure 7 , Figure 8 and Figure 9 , the flexible sealing film 17 is used to block the gap between the air outlet pipe 8 and the movable hole, so as to ensure that there is no leakage between the air outlet pipe 8 and the movable hole, and to ensure the impact force and reaction force of the air outlet in the air outlet pipe 8.

[0036] After the welding is finished, the air outlet pipe 8 is easily blocked, so it is needed to hide it, the gun head pipe 7 is provided with a reset structure, the reset structure is used for driving the first sleeve pipe 9, the annular plate 10 and the second sleeve pipe 11 to slide reset, under the action of the reset structure, the second sleeve pipe 11 is driven to slide reset and retract into the gun pipe 4, the air outlet pipe 8 is hidden, so that the air outlet pipe 8 is reduced to be blocked by the dust, splashing and the like from outside, and the air outlet is not smooth, even blocked.

[0037] As shown in Figure 3 、 Figure 4 and Figure 10 , the reset structure comprises a jacking plate 18, a limiting rod 19, a reset spring 20 and a movable ball 21; the supporting frame is fixedly installed between the wire feeding pipe 6 and the gun head pipe 7, the jacking plate 18 is abutted against the side of the annular plate 10 away from the first sleeve pipe 9, one end of the limiting rod 19 is fixedly connected with the side of the jacking plate 18 away from the annular plate 10, the limiting rod 19 slides through the supporting frame, and the two ends of the reset spring 20 are connected with the jacking plate 18 and the supporting frame respectively; the jacking plate 18 is provided with a ball groove in rotation cooperation with the movable ball 21, the movable ball 21 is rotatably installed in the ball groove, the movable ball 21 is rolling cooperation with the side of the annular plate 10 away from the first sleeve pipe 9, the rotation of the jacking plate 18 is limited by the cooperation of the limiting rod 19 and the supporting frame, in addition, the rolling friction between the movable ball 21 and the annular plate 10 is generated when the annular plate 10 rotates, so that the fluency of the rotation of the annular plate 10 is ensured, and the friction in the rotation process of the annular plate 10 is reduced, and the jacking plate 18 is driven to slide reset by the rebounding force of the reset spring 20.

[0038] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A welding apparatus for processing of a mine high-voltage vacuum electromagnetic starter, characterized by, Including control box body (1), hose (2), handle (3) and gun barrel (4), one end of the hose (2) is detachably connected with the control box body (1), the other end of the hose (2) is communicated with the handle (3), the gun barrel (4) is fixedly connected on the handle (3); The gun barrel (4) is installed with an inner tube (5) and a wire feeding pipe (6), the axes of the gun barrel (4), the inner tube (5) and the wire feeding pipe (6) coincide, the inner tube (5) is sleeved on the wire feeding pipe (6), the gun barrel (4) is sleeved on the inner tube (5), there is a gap between the inner wall of the gun barrel (4) and the outer periphery of the inner tube (5), there is a gap between the inner wall of the inner tube (5) and the outer periphery of the wire feeding pipe (6), the end of the gun barrel (4) and the end of the inner tube (5) are flush, the end of the wire feeding pipe (6) extends to the outer periphery of the inner tube (5), a gun head pipe (7) is sleeved on one end of the outer periphery of the inner tube (5), the axis of the gun head pipe (7) coincides with the axis of the wire feeding pipe (6), there is a spacing between the end of the gun head pipe (7) and the end of the gun barrel (4), a rotating structure is rotatably installed in the spacing, the rotating structure can block the spacing between the end of the gun head pipe (7) and the end of the gun barrel (4), the rotating structure can block the gap between the end of the inner tube (5) and the end of the wire feeding pipe (6), a plurality of air outlet pipes (8) are installed on the rotating structure in a circumferential direction, when the space between the inner tube (5) and the wire feeding pipe (6) is filled with carbon dioxide gas, the carbon dioxide gas can be sprayed out through the air outlet pipes (8), and the sprayed carbon dioxide gas can drive the rotating structure to rotate, the carbon dioxide sprayed out of the air outlet pipes (8) forms a conical gas wall, and the conical gas wall can cover the gun head pipe (7); The rotating structure comprises a first sleeve (9), an annular plate (10), a second sleeve (11) and a third sleeve (12); the first sleeve (9) is rotatably sleeved on the inner tube (5), the annular plate (10) is fixedly connected to the end of the first sleeve (9), the second sleeve (11) is fixedly connected to one side of the annular plate (10) close to the first sleeve (9), the gun barrel (4) is sleeved on the second sleeve (11), the air outlet pipe (8) is installed on the second sleeve (11), and the third sleeve (12) is fixedly installed on the side of the annular plate (10) away from the second sleeve (11); the gun head pipe (7) is sleeved on the third sleeve (12); An adjusting assembly is installed on the second sleeve (11), and the adjusting assembly can adjust the inclination angle of the air outlet pipe (8) on the second sleeve (11); The rotating structure further comprises a sleeve ring (13) and a fan blade (14); the sleeve ring (13) is sleeved on the wire feeding pipe (6), the number of the fan blades (14) is a plurality, and the plurality of fan blades (14) are arranged in an annular array on the outer periphery of the sleeve ring (13), and one end of the fan blade (14) away from the sleeve ring (13) is fixedly connected to the inner ring wall of the annular plate (10). The adjusting assembly comprises a first gear (15), a second gear (16) and a flexible sealing film (17); a movable hole is formed through the outer periphery of the second sleeve (11), the air outlet pipe (8) is rotatably installed in the movable hole, the air outlet pipe (8) is always located in the movable hole, the first gear (15) is fixedly installed on the rotating shaft of the air outlet pipe (8), the second gear (16) is rotatably installed in the second sleeve (11) and is engaged with the first gear (15), part of the second gear (16) is located outside the second sleeve (11), and a plurality of annular gear grooves are formed at equal intervals in the inner wall of the barrel (4) and the second gear (16) is engaged with the inner wall of the barrel (4). The flexible sealing film (17) is used for sealing the gap between the air outlet pipe (8) and the movable hole.

2. The welding apparatus for processing of a high-voltage electromagnetic starter for mining use according to claim 1, characterized by In the initial state, the second sleeve (11) is completely accommodated in the barrel (4), and the barrel (4) can cover the movable hole on the second sleeve (11).

3. The welding apparatus for processing of a high-voltage electromagnetic starter for mining purposes according to claim 2, characterized by the fact that When the space between the barrel (4) and the inner layer pipe (5) is filled with carbon dioxide gas, the first sleeve (9), the annular plate (10) and the second sleeve (11) can be driven to slide in the space between the end of the gun head pipe (7) and the end of the barrel (4), and the air outlet end of the air outlet pipe (8) can be exposed during the sliding of the second sleeve (11). The gun head pipe (7) is provided with a reset structure, and the reset structure is used for driving the first sleeve (9), the annular plate (10) and the second sleeve (11) to slide and reset.

4. The welding apparatus for processing of a high-voltage electromagnetic starter for mining use according to claim 3, characterized by The reset structure comprises a driving plate (18), a limiting rod (19), a reset spring (20) and a movable ball (21); a supporting frame is fixedly installed between the wire feeding pipe (6) and the gun head pipe (7), the driving plate (18) abuts against the side of the annular plate (10) away from the first sleeve (9), one end of the limiting rod (19) is fixedly connected to the side of the driving plate (18) away from the annular plate (10), the limiting rod (19) slidably penetrates the supporting frame, and the two ends of the reset spring (20) are connected with the driving plate (18) and the supporting frame respectively. A ball groove is formed in the driving plate (18) and is rotatably matched with the movable ball (21), the movable ball (21) is rotatably installed in the ball groove, and the movable ball (21) is rotatably matched with the side of the annular plate (10) away from the first sleeve (9).

5. The welding apparatus for processing of a high-voltage electromagnetic starter for mining use according to claim 1, characterized by the fact that The end of the gun head pipe (7) is threadedly connected with a conical sleeve (22), and the end of the wire feeding pipe (6) extends into the conical sleeve (22).

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