阅读说明：本技术 一种等离子气刨枪 (Plasma gouging torch ) 是由 戴平 于 2019-12-10 设计创作，主要内容包括：本发明公开了一种等离子气刨枪,包括延长管、拼接管、保护喷管、通气管和保护套,延长管的底端通过螺纹固定连接有拼接管,且拼接管的内部嵌套设置有通气管,拼接管的底端通过螺纹固定连接有保护喷管,且拼接管与保护喷管的连接处外壁通过螺纹固定连接有保护套。本发明通过将其改为超长型气刨产品,可轻松解决小角度大延伸清角刨槽除渣等工艺难题,广泛应用于船舶,桥梁,钢结构,水电站,石油天然气等异形件刨割工艺处理。(The invention discloses a plasma air gouging gun which comprises an extension pipe, a splicing pipe, a protective spray pipe, a vent pipe and a protective sleeve, wherein the bottom end of the extension pipe is fixedly connected with the splicing pipe through threads, the vent pipe is nested in the splicing pipe, the bottom end of the splicing pipe is fixedly connected with the protective spray pipe through threads, and the outer wall of the joint of the splicing pipe and the protective spray pipe is fixedly connected with the protective sleeve through threads. The invention can easily solve the technical problems of slag removal and the like of the small-angle large-extension angle-cleaning planing groove by changing the ultra-long type air planing product into the ultra-long type air planing product, and is widely applied to the planing and cutting process treatment of special-shaped parts such as ships, bridges, steel structures, hydropower stations, petroleum and natural gas and the like.)

1. The utility model provides a plasma gouging torch, includes extension pipe (1), concatenation pipe (2), protection spray tube (3), breather pipe (4) and protective sheath (5), its characterized in that: the bottom of extension pipe (1) is through screw thread fixedly connected with concatenation pipe (2), and the inside nestification of concatenation pipe (2) is provided with breather pipe (4), the bottom of concatenation pipe (2) is through screw thread fixedly connected with protection spray tube (3), and the junction outer wall of concatenation pipe (2) and protection spray tube (3) is through screw thread fixedly connected with protective sheath (5).

2. A plasma gouging gun according to claim 1, wherein: splicing pipe (2) is including ceramic vortex ring (201), angle vortex hole (2011), air vent two (2012), two-way lantern ring (202), air vent three (2021) and conducting wire (2022), the inside embedding of splicing pipe (2) is provided with ceramic vortex ring (201), and the well lower extreme of ceramic vortex ring (201) runs through and is equipped with angle vortex hole (2011), the well end of ceramic vortex ring (201) runs through and is equipped with air vent two (2012), the bottom nestification of ceramic vortex ring (201) is equipped with two-way lantern ring (202), and the bottom one side of two-way lantern ring (202) is equipped with conducting wire (2022), the top of two-way lantern ring (202) runs through and is equipped with air vent three (2021).

3. A plasma gouging gun according to claim 2, wherein: protection spray tube (3) are including planing groove mouth (301) and plane electrode (302), the inside of protection spray tube (3) is equipped with planing groove mouth (301), and the inside of planing groove mouth (301) is equipped with and digs electrode (302).

4. A plasma gouging gun according to claim 3, wherein: the outer wall of the top end of the gouging nozzle (301) is in threaded connection with the inner wall of the bottom end of the bidirectional lantern ring (202).

5. A plasma gouging gun according to claim 3, wherein: the inner walls of the protective spraying pipe (3), the gouging nozzle (301) and the gouging electrode (302) are all provided with gaps.

6. A plasma gouging gun according to claim 1, wherein: the inner wall bottom of keyway planer mouth (301) is equipped with the inclined plane of three different angles, and all from top to bottom, enlarges the setting from big to small.

7. A plasma gouging gun according to claim 3, wherein: the length of the gouging nozzle (301) protrudes to be 1cm from the front end of the protective spray pipe (3), and the ends of the gouging nozzle (301) and the protective spray pipe (3) form an included angle of 30 degrees with the horizontal plane gouging material.

8. A plasma gouging gun according to claim 2, wherein: the angle vortex hole (2011) forms an included angle of 5-170 degrees with the center line of the ceramic vortex ring (201), and preferably 110 degrees.

Technical Field

The invention relates to the technical field of air gouging guns, in particular to a plasma air gouging gun.

Background

The carbon arc gouging is a surface processing groove method which uses a ceramic vortex ring II or a graphite rod as an electrode, generates electric arc between the electrode and a workpiece, melts metal and blows off the molten metal by compressed air. In welding production, the method is mainly used for planing the groove, eliminating weld defects and back gouging.

The working principle of plasma cutting is that plasma is a gas which is heated to a very high temperature and is highly ionized, the arc power is transferred to a workpiece, the workpiece is melted and blown away by high heat, and the working state of plasma arc cutting is formed. The compressed air enters the cutting torch and is distributed into two paths by the gas chamber, and plasma gas and auxiliary gas are formed. The plasma gas arc acts to melt the metal, while the auxiliary gas cools the various components of the torch and blows away the melted metal.

At present, a plasma arc is utilized to melt metal cutting and planing similar products in the market, but the effect is not ideal, the rotary air channel is too long, the air flow is unstable, the speed is reduced, the arc is unstable and is easy to discharge in a mess, a cutting torch and an electrode nozzle are burnt, and the product has a shallow planing groove and a crooked rabbet after multi-aspect technical research, so that a novel product is redesigned, and various problems are perfectly solved.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a plasma air gouging gun, which solves the problems that the effects are not ideal, the rotary air channel is too long, the air flow is unstable, the speed is reduced, the electric arc is unstable and is easy to discharge in a mess, a cutting torch and an electrode nozzle are burnt, the product gouging is shallow and the notch is inclined through multi-aspect technical research.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a plasma gouging torch, includes extension pipe, concatenation pipe, protection spray tube, breather pipe and protective sheath, the bottom of extension pipe is through screw thread fixedly connected with concatenation pipe, and the inside nestification of concatenation pipe is provided with the breather pipe, the bottom of concatenation pipe is through screw thread fixedly connected with protection spray tube, and the concatenation pipe passes through screw thread fixedly connected with protective sheath with the junction outer wall of protection spray tube.

Preferably, the splicing pipe is including pottery vortex ring, angle vortex hole, air vent two, the two-way lantern ring, air vent three and conductor wire, the inside embedding of splicing pipe is provided with pottery vortex ring, and the well lower extreme of pottery vortex ring runs through and is equipped with angle vortex hole, the well end of pottery vortex ring runs through and is equipped with air vent two, the bottom nestification of pottery vortex ring is equipped with the two-way lantern ring, and bottom one side of the two-way lantern ring is equipped with the conductor wire, the top of the two-way lantern ring runs through and is equipped with air vent three.

Preferably, the protection spray tube comprises a gouging nozzle and a gouging electrode, the gouging nozzle is arranged inside the protection spray tube, and the gouging electrode is arranged inside the gouging nozzle.

Preferably, the outer wall of the top end of the gouging nozzle is in threaded connection with the inner wall of the bottom end of the bidirectional lantern ring.

Preferably, the inner walls of the protective spray pipe, the planing nozzle and the planing electrode are provided with gaps.

Preferably, the inner wall bottom of keyway planer mouth is equipped with the inclined plane of three different angles, and all from top to bottom, enlarges the setting from big to small.

Preferably, the length of the gouging nozzle protrudes to be 1cm from the front end of the protective spraying pipe, and the gouging nozzle and the end head of the protective spraying pipe form an included angle of 30 degrees with the horizontal plane gouging material.

Preferably, the angle swirl holes form an angle of 5-170 degrees with the center line of the ceramic swirl ring, and preferably 110 degrees.

The invention provides a plasma gouging gun. The method has the following beneficial effects:

(1) the plasma gouging gun can easily solve the technical problems of small-angle large-extension corner cleaning, gouging, slag removal and the like by changing the plasma gouging gun into an ultra-long gouging product, and is widely applied to the gouging and cutting process of special-shaped parts such as ships, bridges, steel structures, hydropower stations, petroleum and natural gas and the like.

(2) The plasma gouging gun is characterized in that gaps are arranged on the inner walls of a protective spray pipe, a gouging nozzle, a gouging electrode and the front end of a vent pipe, the vent pipe is ventilated, the vent pipe is blocked by the front end of the gouging electrode at the tail end of the vent pipe (the front end of the gouging electrode is filled with a conductive material) to generate outer wall backflow of the vent pipe, the backflow gas is guided into a ceramic vortex ring from the gap between the gouging electrode and the vent pipe and is ejected out of an angular vortex hole in the ceramic vortex ring to pass through the vent hole to be transmitted into the gap between the gouging electrode and the gouging nozzle (the angular vortex hole and the central line of the ceramic vortex ring form an included angle of 5-170 degrees, preferably 110 degrees, so that the gas changes the direction and the speed of the gas flow (like tornado, the gas flow is rotated) while passing through the angular vortex hole, and the stability of the gas flow is improved, and increases the gas flow velocity inside the ceramic swirl ring.

(3) The plasma gouging gun is characterized in that the inner wall bottom end of the gouging nozzle is provided with inclined planes at three different angles, the inclined planes are all from top to bottom, the setting is enlarged from large to small, multi-angle layering multiple compression is realized when gas passes through the inner walls of the gouging nozzle and the gouging electrode, the spray pipe and the outer layer high-speed gas of the gouging nozzle are protected to be cooled, a high-pressure gas field is formed at the periphery of the arc of the gouging nozzle to pressurize the arc for the second time, the arc is stable, in addition, the discharge in disorder is not easy, and the cutting torch and the electrode nozzle can not be burnt (the name that the spray pipe and the electrode nozzle all belong to the local shape.

Drawings

FIG. 1 is a schematic view of an overall half-section structure of the present invention.

FIG. 2 is a schematic view of the protected nozzle of the present invention.

FIG. 3 is a schematic view of a ceramic vortex ring structure according to the present invention.

Fig. 4 is a schematic view of the structure of the bi-directional collar of the present invention.

FIG. 5 is a schematic view of the overall cross-sectional structure of the present invention.

In the figure: 1. an extension tube; 2. splicing the tubes; 201. a ceramic swirl ring; 2011. an angular swirl hole; 2012. a second vent hole; 202. a bi-directional collar; 2021. a vent hole III; 2022. a conductive wire; 3. protecting the spray pipe; 301. a gouging nozzle; 302. planning an electrode; 4. a breather tube.

Detailed Description

As shown in fig. 1 to 5, the present invention provides a technical solution: the utility model provides a plasma gouging torch, includes extension pipe 1, concatenation pipe 2, protection spray tube 3, breather pipe 4 and protective sheath 5, and screw thread fixedly connected with concatenation pipe 2 is passed through to extension pipe 1's bottom, and the inside nestification of concatenation pipe 2 is provided with breather pipe 4, and screw thread fixedly connected with protection spray tube 3 is passed through to concatenation pipe 2's bottom, and the concatenation pipe 2 passes through screw thread fixedly connected with protective sheath 5 with the junction outer wall of protection spray tube 3.

Wherein, the splice tube 2 is including ceramic vortex ring 201, angle vortex hole 2011, air vent two 2012, two-way lantern ring 202, air vent three 2021 and conductor wire 2022, the inside embedding of splice tube 2 is provided with ceramic vortex ring 201, and the well lower extreme of ceramic vortex ring 201 runs through and is equipped with angle vortex hole 2011, the middle-end of ceramic vortex ring 201 runs through and is equipped with air vent two 2012, the bottom nestification of ceramic vortex ring 201 is equipped with two-way lantern ring 202, and bottom one side of two-way lantern ring 202 is equipped with conductor wire 2022, the top of two-way lantern ring 202 runs through and is equipped with air vent three 2021, be convenient for the stability of atmospheric pressure and electric arc.

Wherein, protection spray tube 3 is equipped with gouging cut 301 including gouging cut 301 and plane electrode 302 in the inside of protection spray tube 3, and the inside of gouging cut 301 is equipped with digs electrode 302, and effectual production electric arc is to required processing material to improve machining efficiency.

Wherein, the top outer wall of gouging mouth 301 and the bottom inner wall threaded connection of two-way lantern ring 202 are convenient for connect gouging mouth 301, and carry out the power consumption to the inside planer electrode 302 of gouging mouth 301 through conducting wire 2022 to provide gouging efficiency.

Gaps are formed in the inner walls of the protective nozzle 3, the planing nozzle 301 and the planing electrode 302, and the length of the second ceramic eddy current ring 303 is smaller than that of the planing electrode 3025mm, so that pressure is applied to an electric arc conveniently, and the stability of the electric arc is improved.

Wherein, the inner wall bottom of gouging mouth 301 is equipped with the inclined plane of three different angles, and all from top to bottom, enlarges the setting from big to small, is favorable to multi-angle layering multiple compression, and outer high-speed gas cooling, forms the high-pressure gas field at spout electric arc periphery and pressurizes the electric arc secondary.

Wherein, the length protrusion of dadoing mouth 301 and the 3 front ends 1cm of protection spray tube, and dadoing mouth 301 and 3 ends of protection spray tube all are 30 contained angles with horizontal plane gouging material, are favorable to forming the best dadoing angle with the gouging material to improve dadoing efficiency.

The angle swirl hole 2011 forms an included angle of 5 degrees to 170 degrees, preferably 110 degrees with the center line of the ceramic swirl ring 201, so that a spiral gas flow is formed on the ceramic swirl ring 201, and the gas flow speed of the ceramic swirl ring 201 is increased.

During use, firstly, the extension pipe 1, the splicing pipe 2, the protective spray pipe 3, the vent pipe 4 and the protective sleeve 5 are spliced with each other, then the conducting wire 2022 is connected with an industrial power supply, current is transmitted to the interior of the planer electrode 302 through the bidirectional lantern ring 202 to enable the planer electrode 302 to generate plasma form for spraying, meanwhile, one end of the vent pipe 4 is connected with gas required by production, because gaps are arranged on the inner walls of the front ends of the protective spray pipe 3, the planer nozzle 301, the planer electrode 302 and the vent pipe 4, the interior of the vent pipe 4 is ventilated, the tail end of the vent pipe 4 is blocked by the front end of the planer electrode 302 (the front end of the planer electrode is filled with a conductive material), the outer wall of the vent pipe 4 reflows, the reflowing gas is guided to the interior of the ceramic vortex ring 201 from the gap between the planer electrode 302 and the front end of the vent pipe 4, and is sprayed from the angular vortex hole 201 in the ceramic vortex ring to the gap between the planer nozzle 301 and the protective spray pipe (it should be noted here that the angle swirl hole forms an angle of 5 ° to 170 ° with the center line of the ceramic swirl ring, preferably 110 °), so that the gas changes the direction and the velocity of the gas flow (like tornado, rotating the gas flow) while passing through the angle swirl hole 201, thereby improving the stability of the gas flow, and increasing the velocity of the gas flow inside the ceramic swirl ring 201, and meanwhile, the bottom end of the inner wall of the gouging nozzle 301 is provided with three inclined planes with different angles, and all the inclined planes are arranged from top to bottom, and are enlarged from large to small, so that the gas is compressed multiple times in layers at multiple angles when passing through the inner walls of the gouging electrode 302 and the gouging nozzle 301, the inner wall of the nozzle 3 and the outer wall of the gouging nozzle 301 are protected to be high-speed gas cooling, and a high-pressure gas field is formed around the arc at the nozzle of the gouging electrode 302 to pressurize the arc for the second time, thereby the arc is stable, and the arc is not easy to, collectively referred to as a planer electrode) to complete the entire process.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.