CN216065968U

CN216065968U - Electrode nozzle with cooling mechanism for air plasma cutting gun

Info

Publication number: CN216065968U
Application number: CN202122557449.6U
Authority: CN
Inventors: 张伯勤
Original assignee: Changzhou Tongchang Electrical Equipment Co ltd
Current assignee: Changzhou Tongchang Electrical Equipment Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-03-18
Anticipated expiration: 2031-10-22

Abstract

The utility model relates to an electrode nozzle with a cooling mechanism for an air plasma cutting gun, which comprises a nozzle, wherein a nozzle is arranged below the nozzle, an electrode is arranged in the nozzle, the height of the electrode is higher than that of the nozzle, the diameter of the electrode is smaller than that of the inside of the nozzle, a cavity is arranged between the nozzle and the electrode, a current divider is sleeved on the electrode, a nozzle cover is arranged on the outer ring of the nozzle, an opening corresponding to the nozzle is arranged at the lower end of the nozzle cover, external threads are arranged at the upper end of the nozzle cover, a fixing ring is arranged at the upper end of the nozzle, a through hole corresponding to the electrode is arranged on the fixing ring, a cooling cavity is arranged between the nozzle and the nozzle cover, a liquid inlet pipe is arranged at one end of the nozzle cover, a liquid outlet pipe is arranged at the other end of the nozzle cover, the liquid inlet pipe and the liquid outlet pipe are communicated with the cooling cavity, the electrode nozzle is formed by combining a plurality of parts and is convenient to be independently replaced, the cost is saved, the protection capability and the cooling capability are provided, and the stability in work is improved.

Description

Electrode nozzle with cooling mechanism for air plasma cutting gun

Technical Field

The utility model relates to the technical field of electric arc cutting, in particular to an electrode nozzle with a cooling mechanism for an air plasma cutting gun.

Background

Currently, plasma cutting is a process in which the heat of a high-temperature plasma arc is used to partially or locally melt (and vaporize) the metal at the cut of a workpiece, and the molten metal is removed by the momentum of the high-speed plasma to form the cut. The plasma cutting gun is widely applied to various industries such as automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general machinery, engineering machinery, steel structures and the like, for example, a Chinese patent with the patent number of CN201020194887.X provides an improved plasma cutting torch, the improved plasma cutting torch is provided with two independent cold water channels for cooling, wherein one cold water channel penetrates into an electrode from the upper part of the electrode and is cooled from the inner part of the electrode, the other cold water channel is arranged in a nozzle and is used for cooling the nozzle and respectively cooling the electrode and the nozzle so as to improve the cooling capacity, but the structure of the equipment is fixed, a water inlet and a water outlet of the cold water channel are both connected with the electrode and are positioned above the electrode, the structural matching of the cutting torch is required, the requirements of various processing equipment cannot be met, a cavity is arranged in the nozzle, the structural strength of a spray head can be taught, and the nozzle is directly exposed to the outside, damage is easy to be caused, the whole nozzle needs to be replaced after the damage, and the resource cost is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects in the prior art, the utility model provides an electrode nozzle with a cooling mechanism for an air plasma cutting gun.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides an air plasma cuts rifle with electrode nozzle who has cooling body, includes the shower nozzle, the shower nozzle below is equipped with the spout, be equipped with the electrode in the shower nozzle, just the electrode height is higher than the shower nozzle height, the diameter of electrode is less than the inside diameter of shower nozzle, be equipped with the cavity in the shower nozzle, cup joint on the electrode and be provided with the shunt, the shower nozzle outer lane is provided with the nozzle guard, nozzle guard lower extreme is equipped with the opening that corresponds with the spout, nozzle guard upper end is equipped with the external screw thread, the shower nozzle upper end is equipped with solid fixed ring, gu be equipped with the through-hole that corresponds with the electrode on the fixed ring, be equipped with the cooling chamber between shower nozzle and the nozzle guard, nozzle guard one end is equipped with the feed liquor pipe, and the other end is equipped with the drain pipe, feed liquor pipe and drain pipe and cooling chamber intercommunication.

Preferably, the inner surface of the nozzle is provided with a clamping groove which is inwards recessed at the nozzle, a mounting ring is arranged in the clamping groove, a ceramic tube is fixedly connected below the mounting ring, and the ceramic tube penetrates through the nozzle and goes deep into the opening.

In further preferred, the fixed ring lower surface is inwards sunken to be equipped with the hold-down tank that corresponds with the shower nozzle upper end, the hold-down tank internal surface is inwards sunken to be equipped with the indent that corresponds with the shunt, fixed ring upper end fixed connection is equipped with the several reference column.

Preferably, a support frame corresponding to the spray head is arranged in the nozzle hood, a support frame is arranged above the nozzle hood, and a support opening corresponding to the lower end of the spray head is arranged on the support frame.

In further preferred, the outer ring of the fixing ring is provided with a first sealing ring, the inner ring of the fixing ring is provided with a second sealing ring, and a third sealing ring corresponding to the lower end of the spray head is arranged in the supporting port.

In further preferred, the drain pipe sets up at feed liquor pipe lower extreme, the cooling intracavity is equipped with the guide plate, the guide plate is the heliciform and distributes, and feed liquor pipe is connected to one end, and the drain pipe is connected to the other end.

Preferably, an annular air cavity is arranged in the nozzle cover, an air inlet pipe is arranged at the upper end of the outer side of the nozzle cover, a plurality of air outlets are arranged on the inner side of the nozzle cover, and the air inlet pipe and the air outlets are communicated with the annular air cavity.

(III) advantageous effects

Compared with the prior art, the utility model provides the electrode nozzle with the cooling mechanism for the air plasma cutting gun, which has the following beneficial effects:

1. the nozzle cover is arranged to provide a protection function for the nozzle, so that dust or debris raised from the outside when the air plasma cutting gun works is prevented from influencing the use of the nozzle, and the working stability of the cutting gun is improved.

2. The motor nozzle is arranged into a combined structure by arranging the independent parts such as the spray head, the electrode, the shunt, the nozzle cover and the like, and the fixing mode of matching and pressing is realized by arranging the fixing ring, so that the nozzle cover is fixed only through the external thread, the disassembly is convenient, the part replacement is convenient, if the damage occurs after the operation, only the corresponding part needs to be replaced, other parts can be continuously put into use, and the consumption of resource cost is saved.

3. The cooling device is provided with the cooling cavity, the liquid inlet pipe and the liquid outlet pipe to cool the outer wall of the spray head, and the flow direction is guided by the flow guide plate, so that the contact area between cooling liquid and the spray head is increased, the cooling efficiency is improved, meanwhile, the air inlet pipe, the annular air cavity and the air outlet are arranged to supply air to the spray nozzle cover, so that the air flows between the electrode and the inner wall of the spray head to cool the motor and the spray head, the cooling capacity is improved by separately cooling through two groups of cooling equipment, the service life of a motor spray nozzle is prolonged, and the working stability is improved.

Drawings

FIG. 1 is a front view of an electrode nozzle with a cooling mechanism for an air plasma cutting torch according to the present invention;

FIG. 2 is a schematic view of the structure of the showerhead, the electrode and the retaining ring of the present invention;

FIG. 3 is a schematic view of the showerhead, electrode and shunt configuration of the present invention;

FIG. 4 is a sectional view showing the inner structure of the fixing ring according to the present invention;

fig. 5 is a sectional view showing the internal structure of the nozzle boot according to the present invention.

In the figure: 1. a spray head; 2. a spout; 3. an electrode; 4. a cavity; 5. a flow divider; 6. a nozzle cover; 7. an opening; 8. an external thread; 9. a fixing ring; 10. a through hole; 11. a cooling chamber; 12. a liquid inlet pipe; 13. a liquid outlet pipe; 14. a card slot; 15. a mounting ring; 16. a ceramic tube; 17. a compaction groove; 18. pressing a groove; 19. a positioning column; 20. a support frame; 21. a support frame; 22. a support port; 23. a first seal ring; 24. a second seal ring; 25. a third seal ring; 26. a baffle; 27. an annular air cavity; 28. an air inlet pipe; 29. and an air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

referring to fig. 1-5, an electrode nozzle with a cooling mechanism for an air plasma cutting gun comprises a nozzle 1, a nozzle 2 is arranged below the nozzle 1, an electrode 3 is arranged in the nozzle 1, the electrode 3 is higher than the nozzle 1, the diameter of the electrode 3 is smaller than the inner diameter of the nozzle 1, a cavity 4 is arranged in the nozzle 1, a flow divider 5 is sleeved on the electrode 3, a nozzle cover 6 is arranged on the outer ring of the nozzle 1, an opening 7 corresponding to the nozzle 2 is arranged at the lower end of the nozzle cover 6, an external thread 8 is arranged at the upper end of the nozzle cover 6, a fixing ring 9 is arranged at the upper end of the nozzle 1, a through hole 10 corresponding to the electrode 3 is arranged on the fixing ring 9, a cooling cavity 11 is arranged between the nozzle 1 and the nozzle cover 6, a liquid inlet pipe 12 is arranged at one end of the nozzle cover 6, a liquid outlet pipe 13 is arranged at the other end of the nozzle cover, and the liquid inlet pipe 12 and the liquid outlet pipe 13 are communicated with the cooling cavity 11.

In this embodiment, the inside surface of shower nozzle 1 is equipped with draw-in groove 14 at spout 2 department inside sunken, is equipped with collar 15 in the draw-in groove 14, and collar 15 below fixed connection is equipped with ceramic pipe 16, and ceramic pipe 16 passes spout 2 and goes deep into in opening 7, improves the heat-resisting ability of spout 2 department, prolongs the life of equipment.

In this embodiment, the lower surface of the fixing ring 9 is inwardly recessed to form a pressing groove 17 corresponding to the upper end of the nozzle 1, the inner surface of the pressing groove 17 is inwardly recessed to form a pressing groove 18 corresponding to the flow divider 5, and the upper end of the fixing ring 9 is fixedly connected to form a plurality of positioning posts 19, so that the fixing ring 9 and the cutting torch are kept in a fixed relation, the nozzle 1 is fixed with the nozzle cover 6, and the stability of the device is improved.

In this embodiment, be equipped with the support frame 20 that corresponds with shower nozzle 1 in the nozzle bonnet 6, be equipped with carriage 21 above the nozzle bonnet 6, be equipped with the support mouth 22 that corresponds with shower nozzle 1 lower extreme on the carriage 21, provide the pressure that multiunit bearing structure dispersed shower nozzle 1 and opening 7 received, prevent that shower nozzle 1 or opening 7 atress concentrate the damage that appears, the life of extension equipment.

In this embodiment, the outer ring of the fixing ring 9 is provided with a first sealing ring 23, the inner ring is provided with a second sealing ring 24, and a third sealing ring 25 corresponding to the lower end of the nozzle 1 is arranged in the supporting opening 22, so that the cooling cavity 11 is in a closed state, thereby preventing the cooling liquid from flowing out and improving the stability of the cooling capacity.

In this embodiment, drain pipe 13 sets up at feed liquor pipe 12 lower extreme, is equipped with guide plate 26 in cooling chamber 11, and guide plate 26 is the heliciform and distributes, and feed liquor pipe 12 is connected to one end, and drain pipe 13 is connected to the other end, makes the coolant liquid be the heliciform and flows into cooling chamber 11, increase and shower nozzle 1's area of contact, improvement cooling capacity.

In this embodiment, nozzle casing 6 is inside to be equipped with annular air cavity 27, and nozzle casing 6 outside upper end is equipped with intake pipe 28, and the inboard is equipped with several gas outlet 29, and intake pipe 28 and gas outlet 29 communicate with annular air cavity 27, further improve equipment's cooling capacity, guarantee the stability of work, the extension is spouted mouth life.

The working principle is as follows:

in conclusion, when the electrode nozzle is used, the electrode nozzle is firstly installed, the ceramic tube 16 penetrates through the nozzle 2, the installation ring 15 is installed in the clamping groove 14, the electrode 3 is fixed on the cutting gun, then the fixing ring 9, the flow divider 5 and the spray head 1 are sequentially sleeved, the electrode 3 penetrates through the through hole 10 and the flow divider 5 and is inserted into the spray head 1, the positioning column 19 is fixed on the cutting gun, the fixing ring 9 and the cutting gun are kept in a fixed relation, the nozzle cover 6 is installed through the external thread 8, the nozzle cover 6 is upwards extruded when the nozzle cover 6 is rotatably installed, the position of the lower fixing ring 9 supported by the positioning column 19 is fixed, the spray head 1 and the flow divider 5 are tightly pressed by matching with the nozzle cover 6, a new-shaped cavity 4 is formed between the spray head 1 and the electrode 3, the spray head 1 is tightly pressed by the pressing groove 17, the flow divider 5 is tightly pressed by the pressing groove 18, the supporting frame 20 is in contact with the outer wall of the spray head 1, the supporting opening 22 is in contact with the end of the spray head 1, the spray head 1 is supported by the supporting frame 21, the fixing of the spray head 1 and the flow divider 5 is completed, a cooling cavity 11 is formed between the spray head 1 and the nozzle cover 6, meanwhile, a first sealing ring 23 blocks a gap between the fixing ring 9 and the inner wall of the nozzle cover 6, a second sealing ring 24 blocks a gap between the fixing ring 9 and the outer wall of the spray head 1, and a third sealing ring 25 blocks a gap between the spray head 1 and the supporting port 22, so that the cooling cavity 11 is in a closed state, thereby completing the installation of the whole electrode nozzle, the equipment is composed of a plurality of elements and is convenient to replace, when the electrode nozzle is damaged, only the damaged part can be replaced, and other parts can be continuously used, resources are saved, meanwhile, the nozzle cover 6 provides a protection function for the nozzle, the use of the nozzle is prevented from being influenced by dust or chips raised from the outside during cutting, the working stability of the cutting gun is improved, the cutting gun is in a high-temperature environment during working, the cooling liquid is improved into the liquid inlet pipe 12, and the cooling liquid flows into the cooling cavity 11 through the liquid inlet pipe 12, flow guide is the heliciform through guide plate 26 and flows along shower nozzle 1 outer wall, do cooling treatment to shower nozzle 1, then flow out from drain pipe 13, simultaneously to supplying cold wind in the intake pipe 28, cold wind flows into annular air cavity 27 through intake pipe 28 after from inside several gas outlet 29 flow direction nozzle guard 6, through-hole 10, cavity 4 and spout 2 form an air current channel, lower the temperature to shower nozzle 1 inner wall and electrode 3, further improve the cooling capacity through two sets of cooling structures, guarantee the stability of electrode nozzle during operation.

While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and variations may be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an air plasma cutting torch is with electrode nozzle who has cooling body, includes shower nozzle (1), shower nozzle (1) below is equipped with spout (2), its characterized in that: the electrode (3) is arranged in the spray head (1), the electrode (3) is highly higher than the spray head (1), the diameter of the electrode (3) is smaller than the inner diameter of the spray head (1), a cavity (4) is arranged in the spray head (1), a flow divider (5) is sleeved on the electrode (3), a nozzle cover (6) is arranged on the outer ring of the spray head (1), an opening (7) corresponding to the nozzle (2) is arranged at the lower end of the nozzle cover (6), external threads (8) are arranged at the upper end of the nozzle cover (6), a fixing ring (9) is arranged at the upper end of the spray head (1), a through hole (10) corresponding to the electrode (3) is arranged on the fixing ring (9), a cooling cavity (11) is arranged between the spray head (1) and the nozzle cover (6), one end of the nozzle cover (6) is provided with a liquid inlet pipe (12), and the other end of the nozzle is provided with a liquid outlet pipe (13), the liquid inlet pipe (12) and the liquid outlet pipe (13) are communicated with the cooling cavity (11).

2. The electrode nozzle with a cooling mechanism for an air plasma cutting gun as claimed in claim 1, wherein: the inner surface of the spray head (1) is provided with a clamping groove (14) at the spray nozzle (2) in an inward concave mode, a mounting ring (15) is arranged in the clamping groove (14), a ceramic tube (16) is fixedly connected below the mounting ring (15), and the ceramic tube (16) penetrates through the spray nozzle (2) and penetrates into the opening (7).

3. The electrode nozzle with a cooling mechanism for an air plasma cutting gun as claimed in claim 1, wherein: the lower surface of the fixing ring (9) is inwards sunken to be provided with a pressing groove (17) corresponding to the upper end of the spray head (1), the inner surface of the pressing groove (17) is inwards sunken to be provided with a pressing groove (18) corresponding to the flow divider (5), and the upper end of the fixing ring (9) is fixedly connected with a plurality of positioning columns (19).

4. The electrode nozzle with a cooling mechanism for an air plasma cutting gun as claimed in claim 1, wherein: be equipped with in nozzle boot (6) support frame (20) that correspond with shower nozzle (1), nozzle boot (6) top is equipped with carriage (21), be equipped with on carriage (21) with shower nozzle (1) lower extreme corresponding support mouth (22).

5. The electrode nozzle with a cooling mechanism for an air plasma cutting gun according to claim 4, wherein: the outer ring of the fixing ring (9) is provided with a first sealing ring (23), the inner ring of the fixing ring is provided with a second sealing ring (24), and a third sealing ring (25) corresponding to the lower end of the spray head (1) is arranged in the supporting opening (22).

6. The electrode nozzle with a cooling mechanism for an air plasma cutting gun as claimed in claim 1, wherein: drain pipe (13) set up at feed liquor pipe (12) lower extreme, be equipped with guide plate (26) in cooling chamber (11), guide plate (26) are the heliciform and distribute, and feed liquor pipe (12) is connected to one end, and drain pipe (13) is connected to the other end.

7. The electrode nozzle with a cooling mechanism for an air plasma cutting gun as claimed in claim 1, wherein: the nozzle cover is characterized in that an annular air cavity (27) is formed in the nozzle cover (6), an air inlet pipe (28) is arranged at the upper end of the outer side of the nozzle cover (6), a plurality of air outlets (29) are formed in the inner side of the nozzle cover, and the air inlet pipe (28) and the air outlets (29) are communicated with the annular air cavity (27).