CN213351162U

CN213351162U - Low-frequency plasma low-current cutting gun with built-in air pump

Info

Publication number: CN213351162U
Application number: CN202022050446.9U
Authority: CN
Inventors: 何刚
Original assignee: Jinan North Welding And Cutting Accessories Co ltd
Current assignee: Jinan North Welding And Cutting Accessories Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-06-04
Anticipated expiration: 2030-09-17

Abstract

The utility model discloses a built-in air pump low frequency plasma undercurrent burning torch, including the rifle head, the bottom face of rifle head is equipped with outer nozzle, the bottom face both sides of outer nozzle all are equipped with the gas outlet, the inside of outer nozzle is equipped with the electrode, and the bottom face middle part of electrode is equipped with the cutting torch simultaneously, the quantity that the inside of outer nozzle was equipped with vortex ring and vortex ring is two, installs the both sides at the electrode respectively simultaneously, the inside fixed mounting of rifle head has the inside that the lower extreme of copper main part and copper main part is located outer nozzle. In the utility model, by arranging the multistage air chamber group, the uniformity of the air flow is improved, the generation of turbulence is reduced, the corresponding heat dissipation is increased, and the service life is prolonged; through setting up the electrically conductive inner core of spring, use high electric conductor to process like this to the terminal surface contact part adopts advanced processing technology to guarantee the reliability of contact surface, guarantees the use of heavy current like this, thereby can not produce the production of striking sparks and burning torch head.

Description

Low-frequency plasma low-current cutting gun with built-in air pump

Technical Field

The utility model belongs to the technical field of plasma undercurrent burning torch, specifically be a built-in air pump low frequency plasma undercurrent burning torch.

Background

Plasma cutting is a novel material cutting process, it uses high-temperature high-speed plasma arc as heat source to heat and melt the cut material, when the arc column and high-speed air flow of the electric arc pass through the nozzle aperture of the cutting torch, make the electric arc compressed, the heat energy concentration degree is improved, melt the cut material locally, and blow away the melted material with the high-speed air flow at the same time, and form the narrow cut, thus finish the cutting operation, the low-frequency plasma small-current cutting torch of the built-in air pump is few in variety at present, the performance is poor, in order to improve this situation, have newly developed a kind of low-frequency plasma small-current cutting torch suitable for built-in air pump;

the conventional apparatus has the following disadvantages:

at present, due to the problems of injury to human bodies and interference of high frequency to equipment and improvement of environmental protection requirements at home and abroad, the research and development of a low-frequency plasma cutting technology are mainly needed. And the whole technology of the low-frequency plasma low-current cutting gun with the built-in air pump is old and the efficiency is general, so that a company decides to research and develop the high-performance low-frequency plasma cutting gun by serious research in combination with the actual requirements at home and abroad.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems of injury to human bodies and interference of high frequency to equipment at present, and the improvement of environmental protection requirements at home and abroad, a low-frequency plasma cutting technology is mainly required to be researched and developed. And the existing built-in air pump low-frequency plasma low-current cutting gun has the problems of old overall technology and general efficiency, and provides the built-in air pump low-frequency plasma low-current cutting gun.

The utility model adopts the technical scheme as follows: a low-frequency plasma low-current cutting gun with an internal air pump comprises a gun head, wherein outer nozzles are arranged on the bottom end face of the gun head, air outlets are formed in two sides of the bottom end face of each outer nozzle, an electrode is arranged inside each outer nozzle, a cutting nozzle is arranged in the middle of the bottom end face of each electrode, two vortex rings are arranged inside each outer nozzle and are arranged on two sides of each electrode, a copper main body is fixedly arranged inside the gun head, the lower end of the copper main body is located inside each outer nozzle, a spring conductive inner core is fixedly arranged inside the copper main body, the bottom end face of the spring conductive inner core is in contact with the upper surface of each electrode, an insulating bushing is sleeved on the outer wall face of the spring conductive inner core, the bottom end face of the insulating bushing is in contact with the upper surface of each vortex ring, an air inlet pipe is fixedly arranged on the copper main body, and located on one, a flexible cable is arranged in the gun head, and meanwhile, one end of the gun head is rotatably connected with the top end face of the spring conductive inner core through a rotating shaft.

In a preferred embodiment, a multi-stage air chamber group is arranged inside the gun head, and the multi-stage air chamber group enters from the air inlet pipe, sequentially passes through the insulating bush and the vortex ring, enters the electrode, and finally is discharged from the air outlet at the bottom end face of the outer nozzle.

In a preferred embodiment, the isolation brackets are fixedly mounted on both sides of the outer wall surface of the outer nozzle, and the shape and the size of the isolation brackets are the same.

In a preferred embodiment, the gun head is divided into two gun head shells, and the two gun head shells are provided with mounting holes, and the mounting holes correspond to each other in position.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. in the utility model, by arranging the multistage air chamber group, the uniformity of the air flow is improved, the generation of turbulence is reduced, and the corresponding heat dissipation is increased;

2. in the utility model, for the exhausting measure of the redundant air current, under the state of ensuring the normal cutting air current and the cooling air current, the redundant air current can be used for radiating the vulnerable part and the gun head, but the emission of the redundant air current of the part needs to be strictly controlled, the structure greatly optimizes the radiating of the exhaust air current, quantifies the position, the size and the quantity of the hole through accurate calculation, improves the cutting performance by 1 time through the improvement of the air current, and increases the service life by 1 time;

3. in the utility model, the spring conductive inner core is arranged, so the high-conductivity body is used for processing, and the end face contact part adopts the advanced processing technology to ensure the reliability of the contact surface, so the use of heavy current is ensured, thereby the ignition and the generation of the burning torch head can not be generated;

4. the utility model discloses in, through setting up flexible cable, make the flexible performance of the electrically conductive inner core of spring obtain the guarantee like this, reduce the service failure rate.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the connection structure at A of FIG. 1 according to the present invention;

fig. 3 is an enlarged schematic view of the connection structure at B in fig. 1 according to the present invention.

The labels in the figure are: 1. an electrode; 2. cutting a nozzle; 3. an isolation support; 4. a swirl ring; 5. an outer nozzle; 6. an insulating bushing; 7. a spring conductive inner core; 8. a copper body; 9. an air inlet pipe; 10. a gun head; 11. a flexible cable; 12. an air outlet; 13. and (7) installing holes.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a low-frequency plasma low-current cutting torch with an internal air pump comprises a torch head 10, wherein an outer nozzle 5 is arranged on the bottom end face of the torch head 10, air outlets 12 are arranged on both sides of the bottom end face of the outer nozzle 5, an electrode 1 is arranged inside the outer nozzle 5, a cutting torch 2 is arranged in the middle of the bottom end face of the electrode 1, two vortex rings 4 are arranged inside the outer nozzle 5, the two vortex rings 4 are respectively arranged on both sides of the electrode 1, a copper main body 8 is fixedly arranged inside the torch head 10, the lower end of the copper main body 8 is positioned inside the outer nozzle 5, a spring conductive inner core 7 is fixedly arranged inside the copper main body 8, the bottom end face of the spring conductive inner core 7 is in contact with the upper surface of the electrode 1, an insulating bush 6 is sleeved on the outer wall face of the spring conductive inner core 7, the bottom end face of the insulating bush 6 is in contact with the upper, meanwhile, the air inlet pipe 9 is positioned on one side of the spring conductive inner core 7, the flexible cable 11 is arranged inside the gun head 10, and one end of the gun head 10 is rotatably connected with the top end face of the spring conductive inner core 7 through a rotating shaft.

The gun head 10 is internally provided with a multi-stage air chamber group, the multi-stage air chamber group enters from an air inlet pipe 9, sequentially passes through an insulating bush 6 and a vortex ring 4, then enters the electrode 1, and finally is discharged from an air outlet 12 at the bottom end face of the outer nozzle 5, so that redundant air flow can be used for dissipating heat of a wearing part and the gun head 10 under the condition of ensuring normal cutting air flow and cooling air flow.

Wherein, the outer wall both sides of outer nozzle 5 are all fixed mounting have and keep apart support 3, keep apart the shape, the size of support 3 the same simultaneously.

Wherein, rifle head 10 divide into two rifle head shells, has all seted up mounting hole 13 on two rifle head shells simultaneously, and the position of mounting hole 13 corresponds each other, can dismantle rifle head 10 like this, is convenient for maintain and change internal component.

The working principle is as follows: when the utility model is used, the components are installed firstly, and then the gun head 10 is connected with the designated equipment, so that the uniformity of the airflow is improved, the generation of turbulence is reduced, and the corresponding heat dissipation is increased by arranging the multistage air chamber group; the exhaust measure of the redundant airflow is that under the condition of ensuring normal cutting airflow and cooling airflow, the redundant airflow can be used for radiating the vulnerable part and the gun head 10, but the emission of the redundant airflow needs to be strictly controlled, the structure greatly optimizes the radiation of the exhaust airflow, quantifies the position, the size and the number of holes through accurate calculation, improves the cutting performance by 1 time through the improvement of the airflow, and prolongs the service life by 1 time; the spring conductive inner core 7 is arranged, so that a high-conductivity body is used for processing, and the end face contact part adopts an advanced processing technology to ensure the reliability of the contact face, so that the use of large current is ensured, and the ignition and the generation of the lance head 10 are avoided; through setting up flexible cable 11, make the flexible performance of the electrically conductive inner core 7 of spring obtain the guarantee like this, reduce the rate of service failure.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a built-in air pump low frequency plasma undercurrent burning torch, includes rifle head (10), its characterized in that: the electrode structure is characterized in that an outer nozzle (5) is arranged on the bottom end face of the gun head (10), gas outlets (12) are arranged on two sides of the bottom end face of the outer nozzle (5), electrodes (1) are arranged inside the outer nozzle (5), a cutting nozzle (2) is arranged in the middle of the bottom end face of each electrode (1), two vortex rings (4) are arranged inside the outer nozzle (5), the two vortex rings (4) are arranged on two sides of each electrode (1) and are respectively mounted on two sides of each electrode, a copper main body (8) is fixedly mounted inside the gun head (10), the lower end of the copper main body (8) is located inside the outer nozzle (5), a spring conductive inner core (7) is fixedly mounted inside the copper main body (8), the bottom end face of the spring conductive inner core (7) is in contact with the upper surface of each electrode (1), an insulating bush (6) is sleeved on the outer wall face of the spring conductive inner core (7), and the bottom end face of the insulating bush (6) is in contact, an air inlet pipe (9) is fixedly mounted on the copper main body (8), the air inlet pipe (9) is located on one side of the spring conductive inner core (7), a flexible cable (11) is arranged inside the gun head (10), and meanwhile one end of the gun head (10) is rotatably connected with the top end face of the spring conductive inner core (7) through a rotating shaft.

2. The low-frequency plasma small-current cutting gun with the built-in air pump as claimed in claim 1, wherein: a multi-stage air chamber group is arranged in the gun head (10), enters from an air inlet pipe (9), sequentially passes through an insulating bush (6) and a vortex ring (4), enters into the electrode (1), and is finally discharged through an air outlet (12) at the bottom end face of the outer nozzle (5).

3. The low-frequency plasma small-current cutting gun with the built-in air pump as claimed in claim 1, wherein: the outer nozzle is characterized in that isolation supports (3) are fixedly mounted on two sides of the outer wall surface of the outer nozzle (5), and the isolation supports (3) are identical in shape and size.

4. The low-frequency plasma small-current cutting gun with the built-in air pump as claimed in claim 1, wherein: the gun head (10) is divided into two gun head shells, mounting holes (13) are formed in the two gun head shells, and the positions of the mounting holes (13) correspond to each other.