Welding equipment for machining mining high-voltage vacuum electromagnetic starter

Abstract

The invention provides welding equipment for machining a mining high-pressure vacuum electromagnetic starter, and relates to the technical field of welding, the welding equipment comprises a control box main body, a hose, a grip 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 grip, and the gun barrel is fixedly connected to the grip; an inner-layer pipe and a wire feeding pipe are installed in the gun barrel, the axis of the gun barrel, the axis of the inner-layer pipe and the axis of the wire feeding pipe coincide, and the wire feeding pipe is sleeved with the inner-layer pipe. According to the welding equipment for machining the mining high-pressure vacuum electromagnetic starter, the inner layer pipe, the wire feeding pipe, the gun head pipe, the rotating structure and the air outlet pipe are arranged, in the welding process, a conical air wall covering the welding position can be formed, and when splashing reaches the position of the conical air wall, the movement track of the splashing can be changed; and the splashing range is reduced, cleaning and management are facilitated, meanwhile, accidents caused by splashing can be reduced, in addition, the air wall can also achieve the cooling effect on splashing, and the possibility of splashing adhesion is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to welding equipment for processing a high-voltage vacuum electromagnetic starter for mining. Background Art

[0002] The high-voltage vacuum electromagnetic starter for mining is an electrical device widely used in dangerous places such as underground coal mines. Its main structural components include flameproof housing: generally cylindrical or square structure, and equipped with a quick-opening door design, such as the QBZ-120 high-voltage vacuum electromagnetic starter, whose housing can effectively prevent the sparks and high temperatures generated by the internal electrical components from spreading to the surrounding explosive gas environment, ensuring the safe production of the mine; internal components: mainly including AC vacuum contactors, isolating switches, control buttons, control transformers, motor integrated protectors, resistor-capacitor protection devices, etc. These components work together to achieve the control and protection functions of the motor. For example, the AC vacuum contactor is used to connect and disconnect the main circuit of the motor, and has the advantages of strong arc extinguishing ability and long life; the motor integrated protector can detect and protect the motor from overload, short circuit, phase failure, leakage and other faults.

[0003] Flameproof enclosures are usually made of metal materials with high strength and explosion resistance, such as cast steel or steel plates, and then the steel plates are welded together. Carbon dioxide gas shielded welding equipment is usually used during welding to weld the steel plates and other parts. Welding will usually result in excessive spatter, which can reduce the quality of the weld: spatter may adhere to the weld surface or mix into the weld, resulting in defects such as uneven welds and slag inclusions, affecting the mechanical properties and sealing 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 will make the weld and surrounding areas unsightly, affecting the overall appearance quality of the product; it may also damage peripheral equipment or components: spatter may fall on nearby equipment, tools or workpieces, causing damage or affecting their normal use. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a welding device for processing a high-voltage vacuum electromagnetic starter for mining.

[0005] The invention provides a welding device for processing a high-voltage vacuum electromagnetic starter for mining, comprising a control box body, a hose, a grip and a gun barrel, wherein one end of the hose is detachably connected to the control box body, the other end of the hose is connected to the grip, and the gun barrel is fixedly connected to the grip;

[0006] An inner tube and a wire feeding tube are installed in the gun barrel, the axes of the gun barrel, the inner tube and the wire feeding tube coincide with each other, the inner tube is sleeved on the wire feeding tube, the gun barrel is sleeved on the inner tube, there is a gap between the inner wall of the gun barrel and the outer periphery of the inner tube, there is a gap between the inner wall of the inner tube and the outer periphery of the wire feeding tube, the ends of the gun barrel and the inner tube are flush, the end of the wire feeding tube extends to the outside of the inner tube, a gun head tube is sleeved on one end of the wire feeding tube located outside the inner tube, the axes of the gun head tube and the wire feeding tube coincide with each other, and there is a gap between the end of the gun head tube and the end of the gun barrel There is a gap, and a rotating structure is rotatably installed within the gap. The rotating structure can block the gap between the end of the gun head tube and the end of the gun barrel, and the rotating structure can block the end gap between the inner tube and the wire feeding tube. A plurality of air outlet pipes are circumferentially installed on the sealing structure. When the space between the inner tube and the wire feeding tube is filled with carbon dioxide gas, the carbon dioxide gas can be ejected through the air outlet pipe, and the ejected carbon dioxide gas can drive the sealing structure to rotate, and the carbon dioxide ejected from the air outlet pipe forms a conical gas wall, and the conical gas wall can cover the gun head tube.

[0007] Preferably, the rotating structure comprises a No. 1 sleeve, an annular plate, a No. 2 sleeve and a No. 3 sleeve; the No. 1 sleeve is rotatably sleeved on the inner tube, the annular plate is fixedly connected to the end of the No. 1 sleeve, the No. 2 sleeve is fixedly connected to the side of the annular plate close to the No. 1 sleeve, the gun barrel is sleeved on the No. 2 sleeve, the air outlet pipe is installed on the No. 2 sleeve, the No. 3 sleeve is fixedly installed on the side of the annular plate away from the No. 2 sleeve, and the gun head tube is sleeved on the No. 3 sleeve;

[0008] An adjustment component is installed on the No. 2 sleeve, and the adjustment component can adjust the inclination angle of the air outlet pipe on the No. 2 sleeve.

[0009] Preferably, the rotating structure also includes a ring and blades; the ring is mounted on the wire feeding tube, and the number of the blades is determined by the number of blades, and a plurality of blades are arranged in a circular array on the outer periphery of the ring, and one end of the blade away from the ring is fixedly connected to the inner wall of the annular plate.

[0010] Preferably, the adjustment assembly comprises a first gear, a second gear and a flexible sealing film; a movable hole is formed through the outer periphery of the second sleeve, the air outlet pipe is rotatably mounted in the movable hole through a rotating shaft, the air outlet pipe is always located in the movable hole, the first gear is fixedly mounted on the rotating shaft of the air outlet pipe, the second gear is rotatably mounted in the second sleeve, and the second gear is meshed with the first gear, a part of the second gear is located outside the second sleeve, a plurality of annular tooth grooves are formed on the inner wall of the gun barrel at equal intervals, and the second gear is meshed with the inner wall of the gun barrel;

[0011] The flexible sealing film is used to seal the gap between the air outlet pipe and the active hole.

[0012] Preferably, in the initial state, the No. 2 sleeve is completely received in the gun barrel, and the gun barrel can cover the movable hole on the No. 2 sleeve.

[0013] Preferably, when the space between the gun barrel and the inner tube is filled with carbon dioxide gas, the No. 1 sleeve, the annular plate and the No. 2 sleeve can be driven to slide in the gap between the end of the gun head tube and the end of the gun barrel, and during the sliding process of the No. 2 sleeve, the outlet end of the outlet pipe can be exposed;

[0014] A reset structure is installed on the gun head tube, and the reset structure is used to drive the first sleeve, the annular plate and the second sleeve to slide and reset.

[0015] Preferably, the reset structure comprises a push plate, a limit 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 push plate abuts against the side of the annular plate away from the No. 1 sleeve, one end of the limit rod is fixedly connected to the side of the push plate away from the annular plate, the limit rod slides through the support frame, and the two ends of the reset spring are respectively connected to the push plate and the support frame;

[0016] The push plate is provided with a ball groove for rotationally cooperating with the movable ball. The movable ball is rotatably installed in the ball groove. The movable ball rolls with the side of the annular plate away from the No. 1 sleeve.

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

[0018] The welding equipment for processing high-voltage vacuum electromagnetic starters for mining proposed by the present invention has the following beneficial effects: through the inner tube, wire feeding tube, gun head tube, rotating structure and air outlet pipe, a conical air wall covering the welding position can be formed during the welding process. When the spatter reaches the conical air wall position, the movement trajectory of the spatter can be changed, the sputtering range of the spatter can be reduced, and cleaning can be facilitated. At the same time, accidents caused by spatter can also be reduced. In addition, the air wall can also cool the spatter and reduce the possibility of spatter adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the handle, barrel, gun head tube and other components of a welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention;

[0021] Figure 3A cross-sectional view of a gun barrel and a gun head tube in a welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention;

[0022] Figure 4 A welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a structural schematic diagram of a blocking structure in a welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention;

[0024] Figure 6 A side cross-sectional view of a blocking structure in a welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention;

[0025] Figure 7 A top view of a sectional view of a blocking structure in a welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention;

[0026] Figure 8 This is a cross-sectional view of the gas outlet pipe in the active hole of the No. 2 casing in a welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention;

[0027] Fig. 9 A welding device for processing a high-voltage vacuum electromagnetic starter for mining proposed by the present invention Figure 7 Enlarged view of point B in the middle;

[0028] Fig.10 The present invention provides a schematic structural diagram of a reset structure in a welding device for processing a mining high-voltage vacuum electromagnetic starter.

[0029] In the figure: 1. Control box body; 2. Hose; 3. Grip; 4. Gun barrel; 5. Inner tube; 6. Wire feeding tube; 7. Gun head tube; 8. Exhaust pipe; 9. No. 1 casing; 10. Ring plate; 11. No. 2 casing; 12. No. 3 casing; 13. Ring; 14. Fan blade; 15. No. 1 gear; 16. No. 2 gear; 17. Flexible sealing film; 18. Push plate; 19. Limit rod; 20. Return spring; 21. Movable ball; 22. Conical sleeve. DETAILED DESCRIPTION

[0030] Reference Figure 1-Figure 10The present invention proposes a welding device for high-voltage vacuum electromagnetic starter processing for mining, comprising a control box body 1, a hose 2, a grip 3 and a barrel 4. The control box body 1 comprises a control box, a wire feeding mechanism, a flow meter, a pressure reducing gauge, a welding power source and other prior arts. One end of the hose 2 is detachably connected to the control box body 1, and the other end of the hose 2 is connected to the grip 3. The barrel 4 is fixedly connected to the grip 3. The hose 2 is a wire feeding hose. In actual situations, there are also two carbon dioxide delivery pipes, and both delivery pipes deliver carbon dioxide gas to the barrel 4. One of the carbon dioxide gases forms a gas protection layer during welding to prevent oxygen, nitrogen and other gases in the air from invading the molten pool, avoiding oxidation and nitridation of the weld metal, and also helping to maintain the stability of the arc, making the welding process more stable, promoting uniform filling of the weld metal, and improving the quality and appearance of the weld. In actual situations, when using carbon dioxide gas shielded welding equipment for welding, it may be due to metallurgy. Metal factors (molten droplet transition characteristics: carbon dioxide gas shielded welding mostly adopts short-circuit transition or large droplet transition, and the molten droplet transition process is unstable, which easily leads to spatter; metal vapor explosion: during the molten droplet transition process, the pressure of metal vapor suddenly increases, which may cause metal vapor explosion and cause spatter) and physical factors (arc force: the electromagnetic force and plasma flow force of the welding arc will act on the molten droplet, causing it to deviate from the normal transition trajectory, thereby producing spatter; improper polarity selection: when DC is reversed, the welding wire is the cathode, which will produce larger spatter) lead to spatter (splashing in welding refers to metal particles or molten droplets flying out from the molten pool during the welding process), and this kind of spatter will cause various adverse effects. The explosion-proof shell of the mining high-voltage vacuum electromagnetic starter will have many terminals on the surface, which will cause great obstacles when cleaning the spatter. In addition, a stream of carbon dioxide gas plays a role in cooling and blocking the sputtered metal particles and slag, as follows.

[0031] like Figure 1 , Figure 2 and Figure 3As shown in, an inner tube 5 and a wire feeding tube 6 are installed in the gun barrel 4, the axes of the gun barrel 4, the inner tube 5 and the wire feeding tube 6 coincide, the inner tube 5 is sleeved on the wire feeding tube 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, the gun barrel 4 and the inner tube 5 are fixedly installed by a No. 1 bracket, the channel formed between the gun barrel 4 and the inner tube 5 is used to transport carbon dioxide gas for cooling and blocking splashes, there is a gap between the inner wall of the inner tube 5 and the outer periphery of the wire feeding tube 6, the inner tube 5 and the wire feeding tube 6 are fixedly installed by a No. 2 bracket The frame is fixedly installed, and the gap channel between the inner tube 5 and the wire feeding tube 6 is used to transport another stream of carbon dioxide gas to form a welding protective layer during welding. The gun barrel 4 is flush with the end of the inner tube 5, and the end of the wire feeding tube 6 extends to the outside of the inner tube 5. The wire feeding tube 6 is located at one end of the inner tube 5 outside the inner tube 5 and is equipped with a gun head tube 7. The axis of the gun head tube 7 coincides with the axis of the wire feeding tube 6. There is a gap between the end of the gun head tube 7 and the end of the gun barrel 4. A rotating structure is rotatably installed within the gap, and the rotating structure can block the gap between the end of the gun head tube 7 and the end of the gun barrel 4. The rotating structure can block the end gap between the inner tube 5 and the wire feeding tube 6. A plurality of gas outlet pipes 8 are installed circumferentially on the blocking structure. When the space between the inner tube 5 and the wire feeding tube 6 is filled with carbon dioxide gas, the carbon dioxide gas can be ejected through the gas outlet pipe 8, and the ejected carbon dioxide gas can drive the blocking structure to rotate. The carbon dioxide ejected from the gas outlet pipe 8 forms a conical gas wall, and the conical gas wall can cover the gun head tube 7. The end of the gun head tube 7 is threadedly connected with a conical sleeve 22, and the end of the wire feeding tube 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 tube 6, so that the welding wire contacts the explosion-proof shell, and the welding wire and the base material are melted and mixed together by the electric arc, and the carbon dioxide gas is ejected from the nozzle at a certain flow rate (the carbon dioxide gas is conveyed from the channel between the wire feeding tube 6 and the inner tube 5 to the gun head tube 7, so that the carbon dioxide gas is discharged through the opening of the conical sleeve 22 at the end of the gun head tube 7), forming a gas protection layer around the electric arc, isolating the air from the welding area, and preventing the oxygen, nitrogen, etc. 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 outlet pipe 8 (the outlet pipe 8 is arranged obliquely. After the high-pressure carbon dioxide gas is ejected from the outlet pipe 8, a relative reaction will be generated, causing the outlet pipe 8 and the blocking structure to rotate). During the rotation process, the carbon dioxide gas column ejected from the outlet pipe 8 forms a conical gas wall. When the splash reaches the conical gas wall position, it is blown by the gas wall, and the carbon dioxide gas wall impacts the splash, slows down the impact of the splash, changes its flight path, and reduces the falling range of the splash, reducing the impact of the splash on the surrounding environment. At the same time, the splash is guided to move more concentratedly in a specific direction, which is convenient for collection and cleaning. At the same time, the flowing carbon dioxide gas wall can cool the splash, and the temperature can be reduced to reduce the possibility of the splash adhering to the surrounding objects, making the cleaning work easier. In addition, the splash with a lower temperature is relatively less likely to cause fire or other safety problems. In actual situations, since the use of solid shields in many positions when welding the explosion-proof shell will hinder the welding work, the use of carbon dioxide gas walls can be applied to a variety of complex environments. ;

[0032] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in the figure, the rotating structure includes a No. 1 sleeve 9, an annular plate 10, a No. 2 sleeve 11 and a No. 3 sleeve 12; the No. 1 sleeve 9 is rotatably sleeved on the inner tube 5, the annular plate 10 is fixedly connected to the end of the No. 1 sleeve 9, the No. 2 sleeve 11 is fixedly connected to the side of the annular plate 10 close to the No. 1 sleeve 9, the barrel 4 is sleeved on the No. 2 sleeve 11, the air outlet pipe 8 is installed on the No. 2 sleeve 11, the No. 3 sleeve 12 is fixedly installed on the side of the annular plate 10 away from the No. 2 sleeve 11, and the gun head tube 7 is sleeved on the No. 3 sleeve 12; an adjustment component is installed on the No. 2 sleeve 11, and the adjustment component can The inclination angle of the air outlet pipe 8 on the No. 2 sleeve 11 can be adjusted. In actual situations, there are many factors that lead to spatter, such as current and voltage mismatch, improper polarity selection, surface condition of the parent material, etc. Therefore, the amount of spatter varies in actual situations. At the same time, the range of the conical gas wall needs to be adjusted according to the welding environment. When there are many terminals around the explosion-proof shell, the range of the conical gas wall can be adjusted to protect the terminals and reduce spatter on the terminals. It can be adjusted according to the welding scene and can also be used normally in some special environments, such as corner positions.

[0033] like Figure 3 , Figure 4 , Figure 6 and Figure 7As shown in the figure, the rotating structure also includes a ring 13 and blades 14; the ring 13 is sleeved on the wire feeding tube 6, and the number of blades 14 is determined. Multiple blades 14 are arranged in a circular array on the outer periphery of the ring 13, and one end of the blade 14 away from the ring 13 is fixedly connected to the inner ring wall of the annular plate 10 to ensure the firmness and stability of the multiple blades 14. When the protective carbon dioxide gas is discharged, the carbon dioxide gas passes through the blades 14, and the flow of the gas drives the blades 14 to perform circular motion, thereby ensuring the rotation of the sealing structure.

[0034] like Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown in the figure, the adjustment component includes a No. 1 gear 15, a No. 2 gear 16 and a flexible sealing film 17; a movable hole is opened through the outer periphery of the No. 2 sleeve 11, and the outlet pipe 8 is rotatably installed in the movable hole through a rotating shaft, and the outlet pipe 8 is always located in the movable hole. The No. 1 gear 15 is fixedly installed on the rotating shaft of the outlet pipe 8, and the No. 2 gear 16 is rotatably installed in the No. 2 sleeve 11, and the No. 2 gear 16 is meshed with the No. 1 gear 15, and a part of the No. 2 gear 16 is located outside the No. 2 sleeve 11, and the inner wall of the barrel 4 is evenly spaced with a plurality of annular tooth grooves, and the No. 2 gear 16 is connected to the inner wall of the barrel 4. The gun barrel 4 is meshed with the wall. In the initial state, the No. 2 sleeve 11 is completely received in the gun barrel 4, and the gun barrel 4 can cover the movable hole on the No. 2 sleeve 11. When the space between the gun barrel 4 and the inner tube 5 is filled with carbon dioxide gas, the No. 1 sleeve 9, the annular plate 10 and the No. 2 sleeve 11 can be driven to slide in the gap between the end of the gun head tube 7 and the end of the gun barrel 4. During the sliding process of the No. 2 sleeve 11, the outlet end of the outlet pipe 8 can be exposed; in the initial state, the No. 2 sleeve 11 is received in the gun barrel 4, and the opening of the movable hole is also blocked by the inner wall of the gun barrel 4, and the outlet is blocked. The tube 8 is located in the movable hole, and the air outlet pipe 8 cannot play the role of exhausting gas. When the gap channel between the inner tube 5 and the gun barrel 4 is filled with high-pressure gas, the gas pressure will drive the blocking structure to slide, and the No. 2 sleeve 11 will gradually extend out of the gun barrel 4. When the No. 2 sleeve 11 is extended, the teeth of the exposed part of the No. 2 gear 16 are meshed with the annular tooth groove, so that the No. 2 gear 16 rotates, and the No. 2 gear 16 drives the No. 1 gear 15 to rotate, and the No. 1 gear 15 drives the air outlet pipe 8 to rotate synchronously. By changing the inclination angle of the air outlet pipe 8, the air pressure in the gap channel between the gun barrel 4 and the inner tube 5 can be controlled according to the change of the gas pressure. The extended length of the No. 2 sleeve 11 is made to expose the movable hole, and the outlet of the air outlet pipe 8 is released at the same time, and the high-pressure gas in the gap channel between the inner tube 5 and the barrel 4 is ejected through the air outlet pipe 8 to form an air column. The reaction force generated by the ejected gas drives the sealing structure and the air outlet pipe 8 to rotate rapidly, so that the air column rotates to form a conical air wall. When the splash passes through the air wall, it will be impacted by the carbon dioxide gas, which changes the flight path of the splash and reduces the sputtering range of the splash. At the same time, it cools the splash to a certain extent, reduces the possibility of high-temperature splash adhesion, and reduces the occurrence of accidents.

[0035] like Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown in the figure, the flexible sealing film 17 is used to seal the gap between the air outlet pipe 8 and the active hole to ensure that there is no leakage in the gap between the air outlet pipe 8 and the active hole, and to ensure the impact force and reaction force of the air out of the air outlet pipe 8.

[0036] After welding is completed, the air outlet pipe 8 is easily blocked, so it needs to be hidden. A reset structure is installed on the gun head tube 7, and the reset structure is used to drive the No. 1 sleeve 9, the annular plate 10 and the No. 2 sleeve 11 to slide and reset. Under the action of the reset structure, the No. 2 sleeve 11 is driven to slide and reset and retract into the gun barrel 4 to hide the air outlet pipe 8, thereby reducing the air outlet pipe 8 from being entered by external dust, splashes, etc., causing poor air outlet or even blockage.

[0037] like Figure 3 , Figure 4 and Fig.10 As shown in the figure, the reset structure includes a push plate 18, a limit rod 19, a reset spring 20 and a movable ball 21; a support frame is fixedly installed between the wire feeding tube 6 and the gun head tube 7, the push plate 18 is against the side of the annular plate 10 away from the No. 1 sleeve 9, one end of the limit rod 19 is fixedly connected to the side of the push plate 18 away from the annular plate 10, the limit rod 19 slides through the support frame, and the two ends of the reset spring 20 are respectively connected to the push plate 18 and the support frame; the push plate 18 is provided with a rotation with the movable ball 21 The movable ball 21 is rotatably installed in the ball groove. The movable ball 21 rolls with the side of the annular plate 10 away from the No. 1 sleeve 9. The rotation of the main push plate 18 is limited by the cooperation of the limit rod 19 and the support frame. In addition, when the annular plate 10 rotates, rolling friction is generated between the movable ball 21 and the annular plate 10, thereby ensuring the smoothness of the rotation of the annular plate 10 and reducing the friction during the rotation of the annular plate 10. The rebound force of the reset spring 20 drives the push plate 18 to slide and reset.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device for processing high-voltage vacuum electromagnetic starters for mining, characterized in that: The invention comprises a control box body (1), a hose (2), a grip (3) and a gun barrel (4), wherein one end of the hose (2) is detachably connected to the control box body (1), the other end of the hose (2) is connected to the grip (3), and the gun barrel (4) is fixedly connected to the grip (3); An inner tube (5) and a wire feeding tube (6) are installed in the gun barrel (4), the axes of the gun barrel (4), the inner tube (5) and the wire feeding tube (6) coincide with each other, the inner tube (5) is sleeved on the wire feeding tube (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 tube (6), the ends of the gun barrel (4) and the inner tube (5) are flush, the end of the wire feeding tube (6) extends to the outside of the inner tube (5), a gun head tube (7) is sleeved on one end of the wire feeding tube (6) located outside the inner tube (5), the gun head tube (7) coincides with the axis of the wire feeding tube (6), There is a gap between the end of the gun head tube (7) and the end of the gun barrel (4), and a rotating structure is rotatably installed within the gap. The rotating structure can block the gap between the end of the gun head tube (7) and the end of the gun barrel (4), and the rotating structure can block the end gap between the inner tube (5) and the wire feeding tube (6). A plurality of air outlet pipes (8) are circumferentially installed on the blocking structure. When the space between the inner tube (5) and the wire feeding tube (6) is filled with carbon dioxide gas, the carbon dioxide gas can be ejected through the air outlet pipe (8), and the ejected carbon dioxide gas can drive the blocking structure to rotate. The carbon dioxide ejected from the air outlet pipe (8) forms a conical gas wall, and the conical gas wall can cover the gun head tube (7).

2. The welding equipment for processing a high-voltage vacuum electromagnetic starter for mining according to claim 1 is characterized in that: The rotating structure comprises a No. 1 sleeve (9), an annular plate (10), a No. 2 sleeve (11) and a No. 3 sleeve (12); the No. 1 sleeve (9) is rotatably sleeved on the inner tube (5); the annular plate (10) is fixedly connected to the end of the No. 1 sleeve (9); the No. 2 sleeve (11) is fixedly connected to a side of the annular plate (10) close to the No. 1 sleeve (9); the gun barrel (4) is sleeved on the No. 2 sleeve (11); the air outlet pipe (8) is installed on the No. 2 sleeve (11); the No. 3 sleeve (12) is fixedly installed on a side of the annular plate (10) away from the No. 2 sleeve (11); and the gun head tube (7) is sleeved on the No. 3 sleeve (12); An adjustment component is installed on the second sleeve (11), and the adjustment component can adjust the inclination angle of the air outlet pipe (8) on the second sleeve (11).

3. The welding equipment for processing a high-voltage vacuum electromagnetic starter for mining according to claim 2 is characterized in that: The rotating structure also includes a ring (13) and blades (14); the ring (13) is sleeved on the wire feeding tube (6), and the number of the blades (14) is determined by the number of blades (14). A plurality of blades (14) are arranged in an annular array on the outer periphery of the ring (13), and one end of the blade (14) away from the ring (13) is fixedly connected to the inner wall of the annular plate (10).

4. The welding equipment for processing a mining high-voltage vacuum electromagnetic starter according to claim 2 is characterized in that: The adjustment component 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 mounted in the movable hole via a rotating shaft; the air outlet pipe (8) is always located in the movable hole; the first gear (15) is fixedly mounted on the rotating shaft of the air outlet pipe (8); the second gear (16) is rotatably mounted in the second sleeve (11); the second gear (16) is meshed with the first gear (15); a part of the second gear (16) is located outside the second sleeve (11); a plurality of annular tooth grooves are formed on the inner wall of the gun barrel (4) at equal intervals; the second gear (16) is meshed with the inner wall of the gun barrel (4); The flexible sealing film (17) is used to seal the gap between the air outlet pipe (8) and the movable hole.

5. The welding equipment for processing a high-voltage vacuum electromagnetic starter for mining according to claim 4 is characterized in that: In the initial state, the second sleeve (11) is completely received in the gun barrel (4), and the gun barrel (4) can cover the movable hole on the second sleeve (11).

6. The welding equipment for processing a high-voltage vacuum electromagnetic starter for mining according to claim 5 is characterized in that: When the space between the gun barrel (4) and the inner tube (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 gap between the end of the gun head tube (7) and the end of the gun barrel (4), and during the sliding process of the second sleeve (11), the outlet end of the outlet pipe (8) can be exposed; A reset structure is installed on the gun head tube (7), and the reset structure is used to drive the first sleeve (9), the annular plate (10) and the second sleeve (11) to slide and reset.

7. The welding equipment for processing a high-voltage vacuum electromagnetic starter for mining according to claim 6 is characterized in that: The reset structure comprises a push plate (18), a limit rod (19), a reset spring (20) and a movable ball (21); a support frame is fixedly installed between the wire feeding tube (6) and the gun head tube (7); the push plate (18) abuts against the side of the annular plate (10) away from the No. 1 sleeve (9); one end of the limit rod (19) is fixedly connected to the side of the push plate (18) away from the annular plate (10); the limit rod (19) slides through the support frame; and the two ends of the reset spring (20) are respectively connected to the push plate (18) and the support frame; The push plate (18) is provided with a ball groove for rotationally cooperating with the movable ball (21), the movable ball (21) is rotatably installed in the ball groove, and the movable ball (21) is rollingly cooperating with the side of the annular plate (10) away from the first sleeve (9).

8. The welding equipment for processing a mining high-voltage vacuum electromagnetic starter according to claim 1 is characterized in that: The end of the gun head tube (7) is threadedly connected with a tapered sleeve (22), and the end of the wire feeding tube (6) extends into the tapered sleeve (22).

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