CN216370627U - Swirl ring for plasma cutting gun - Google Patents
Swirl ring for plasma cutting gun Download PDFInfo
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- CN216370627U CN216370627U CN202123025352.7U CN202123025352U CN216370627U CN 216370627 U CN216370627 U CN 216370627U CN 202123025352 U CN202123025352 U CN 202123025352U CN 216370627 U CN216370627 U CN 216370627U
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- plasma cutting
- cutting gun
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- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a vortex ring for a plasma cutting gun, which comprises a ring body, wherein the ring body circumferentially surrounds to form a ring wall; an air storage cavity is recessed towards the outer wall side of the annular wall on the inner wall of the annular wall; the inner wall of the annular wall is also provided with a flow dividing channel, the flow dividing channel comprises a flow dividing groove which extends from the near air storage cavity end to the far air storage cavity end in the axial direction of the annular body, the near air storage cavity end of the flow dividing groove is an air inlet communicated with the air storage cavity, and the far air storage cavity end of the flow dividing groove is an air outlet; the ring body is also provided with an air inlet communicated with the air storage cavity and used for guiding the gas outside the ring body to the air storage cavity. The utility model can lead the air to be more evenly divided, lead the plasma flame flow of the plasma cutting gun to be easily formed and more perfect and is beneficial to the cutting.
Description
Technical Field
The utility model relates to a swirl ring for a plasma cutting gun.
Background
At present, chinese patent No. CN204018938U discloses a structure of a plasma cutting torch, in which a distributor is provided for distributing air flow, but after the distributor of the structure is used on the plasma cutting torch, the working air flow is not stable enough, and the generated plasma flame flow is not perfect.
Disclosure of Invention
The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide the vortex ring for the plasma cutting gun, which can enable air to be distributed more uniformly, enable the plasma flame flow of the plasma cutting gun to be formed easily and more perfectly and is beneficial to cutting.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a swirl ring for a plasma cutting gun, comprising a ring body, wherein,
the ring body circumferentially surrounds to form a ring wall;
an air storage cavity is recessed towards the outer wall side of the annular wall on the inner wall of the annular wall;
the inner wall of the annular wall is also provided with a flow dividing channel, the flow dividing channel comprises a flow dividing groove which extends from the near air storage cavity end to the far air storage cavity end in the axial direction of the annular body, the near air storage cavity end of the flow dividing groove is an air inlet communicated with the air storage cavity, and the far air storage cavity end of the flow dividing groove is an air outlet;
the ring body is also provided with an air inlet communicated with the air storage cavity and used for guiding the gas outside the ring body to the air storage cavity.
Further, in order to enable the gas flow to form a vortex shape better and facilitate generation of plasma flame flow, the extending direction of the flow dividing grooves is obliquely arranged relative to the axial direction of the ring body.
Further, the extending direction of the flow dividing grooves is inclined relative to the axial direction of the ring body by an inclination angle alpha of 30-60 degrees.
Further, the inlet port is provided with a plurality ofly to a plurality of inlet ports are along the circumference equipartition of ring body.
Further, the air inlet hole is arranged along the radial extension of the ring body.
Furthermore, the shunting grooves are provided with multiple heads, and the multiple-head shunting grooves are distributed along the circumferential direction of the ring body.
Furthermore, the inner wall of the annular wall is enclosed to form a hole which penetrates through the annular body along the axial direction.
Further, the diameter of the hole is 9-12 mm; or the following steps: the diameter of the hole is 9-12 mm, the diameter of the wall surface of the gas storage cavity close to the outer wall side of the ring wall is 13.5-15 mm, and the height of the gas storage cavity in the axial direction of the ring body is 2.5-3.5 mm.
Furthermore, the aperture of the air inlet hole is 0.85 mm-1.1 mm.
Furthermore, the outer wall of the annular wall is provided with at least one sealing ring.
Further, the groove depth h of the shunting groove in the radial direction of the ring body is 0.4-1.5 mm; and/or the width k of the shunt groove is 0.5-1.5 mm.
The utility model also provides a plasma cutting gun which comprises a vortex ring for the plasma cutting gun, wherein an air inlet channel of the plasma cutting gun is communicated with the air storage cavity through an air inlet.
After the technical scheme is adopted, the gas outside the ring body is guided to the gas storage cavity through the gas inlet holes, then flows to the space between the electric arcs more uniformly through the multi-head flow dividing grooves, so that the high-temperature plasma flame flow sprayed out from the nozzle of the plasma cutting gun is more perfect, and the plasma cutting gun is favorable for cutting.
Drawings
FIG. 1 is an axial side cross-sectional view of a swirl ring for a plasma cutting gun of the present invention;
FIG. 2 is a front cross-sectional view of a swirl ring for a plasma cutting gun of the present invention;
fig. 3 is a top view of the swirl ring for a plasma cutting gun of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example one
Fig. 1 is an axial side cross-sectional view of a swirl ring for a plasma cutting gun of the present invention.
Fig. 2 is a front cross-sectional view of a swirl ring for a plasma cutting gun of the present invention.
Fig. 3 is a top view of the swirl ring for a plasma cutting gun of the present invention.
As shown in fig. 1 to 3, a swirl ring for a plasma cutting gun comprises a ring body, wherein,
the ring body circumferentially surrounds to form a ring wall 1;
an air storage cavity 11 is recessed on the inner wall of the annular wall 1 towards the outer wall side of the annular wall 1;
the inner wall of the annular wall 1 is also provided with a flow dividing channel, the flow dividing channel comprises a flow dividing groove 12 which extends from a near air storage cavity end to a far air storage cavity end in the axial direction of the annular body, the near air storage cavity end of the flow dividing groove 12 is an air inlet 12a communicated with the air storage cavity 11, and the far air storage cavity end of the flow dividing groove 12 is an air outlet 12 b;
the ring body is also provided with an air inlet 13 which is communicated with the air storage cavity 11 and is used for guiding the gas outside the ring body to the air storage cavity 11.
As shown in fig. 1 and 2, the flow dividing grooves 12 are provided with multiple branches, and the multiple branch grooves 12 are distributed along the circumferential direction of the ring body, in this embodiment, the flow dividing grooves 12 may be selected from 6 to 10 branches, and are optimally 8 branches, but are not limited to this number.
As shown in fig. 1 and 2, the extending direction of the shunt groove 12 is inclined with respect to the axial direction of the ring body; the inclined arrangement is mainly to form the gas flow coming out from the gas outlet 12b of the plurality of flow dividing grooves 12 into a vortex shape, and the formed plasma flame flow is perfect after the vortex-shaped gas flow enters the arc region.
As shown in fig. 1 to 3, the air inlet 13 is provided with a plurality of air inlets 13, and the plurality of air inlets 13 are uniformly distributed along the circumferential direction of the ring body; in the present embodiment, the intake holes 13 may be provided in six, but are not limited thereto.
As shown in fig. 1 to 3, the air inlet 13 may extend along the radial direction of the ring body, and the air inlet 13 may also extend along other directions.
As shown in fig. 1 to 3, the inner wall of the annular wall 1 defines a hole 14 passing through along the axial direction of the annular body, and the hole 14 is mainly used for being sleeved on a part of a plasma cutting gun.
As shown in fig. 2 and 3, the diameter W of the hole 14 may be 9 to 12mm, the diameter M of the wall surface of the gas storage cavity 11 close to the outer wall side of the ring wall may be 13.5 to 15mm, and the height S of the gas storage cavity 11 in the axial direction of the ring body may be 2.5mm to 3.5 mm; the aperture D of the air inlet 13 can be 0.85 mm-1.1 mm; the groove depth h of the shunting groove 12 in the radial direction of the ring body can be 0.4-1.5 mm; the groove width k of the shunt groove 12 can be 0.5-1.5 mm; the extending direction of the flow dividing grooves 12 is inclined relative to the axial direction of the ring body by an inclination angle alpha of 30-60 degrees, and is optimally 45 degrees, but the angle is not limited to the angle; it should be noted that the above size limits are a good range obtained by the skilled person after many times of practice and experiments, and the size limits are mainly to restrict the gas flow distribution so that the gas flow distribution is more uniform, but are not limited to the above size limits. In the embodiment, the diameter W of the hole 14 is 10mm, the diameter M of the wall surface of the gas storage cavity 11 close to the outer wall side of the ring wall is 14mm, and the height S of the gas storage cavity 11 in the axial direction of the ring body is 2.5 mm; the aperture D of the air inlet 13 is 1 mm; the groove depth h of the shunting groove 12 in the radial direction of the ring body is 0.5 mm; the groove width k of the shunt groove 12 is 0.8 mm; the extension direction of the shunt grooves 12 is inclined at an inclination angle α of 31 ° with respect to the axial direction of the ring body.
Specifically, the outer wall of the annular wall 1 is provided with at least one sealing ring 2, the number of the sealing rings 2 may be one, two or other, and the sealing rings 2 above 2 may be arranged in parallel along the axial direction of the annular wall 1.
In summary, in the embodiment of the present invention, the gas outside the plasma cutting torch is guided to the gas storage cavity 11 through the gas inlet 13, and then is divided to the gas outlet 12b through the multi-head flow dividing groove 12, so that the gas flows more uniformly to the arc space, the high temperature plasma flame flow ejected from the nozzle of the plasma cutting torch is more perfect, and the plasma cutting torch is beneficial to cutting.
The vortex ring of the embodiment can be used for a plasma cutting gun, and an air inlet channel of the plasma cutting gun is communicated with the air storage cavity 11 through an air inlet hole 13.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A swirl ring for a plasma cutting gun, comprising a ring body, wherein,
the ring body circumferentially surrounds to form a ring wall (1);
an air storage cavity (11) is recessed towards the outer wall side of the annular wall (1) on the inner wall of the annular wall (1);
the inner wall of the annular wall (1) is also provided with a flow dividing channel, the flow dividing channel comprises a flow dividing groove (12) which extends from a near air storage cavity end to a far air storage cavity end in the axial direction of the annular body, the near air storage cavity end of the flow dividing groove (12) is an air inlet (12 a) communicated with the air storage cavity (11), and the far air storage cavity end of the flow dividing groove (12) is an air outlet (12 b);
the ring body is also provided with an air inlet (13) which is communicated with the air storage cavity (11) and is used for guiding the gas outside the ring body to the air storage cavity (11).
2. The swirl ring for a plasma cutting gun of claim 1, wherein: the extension direction of the flow dividing grooves (12) is obliquely arranged relative to the axial direction of the ring body.
3. The swirl ring for a plasma cutting gun of claim 2, wherein: the extension direction of the flow dividing grooves (12) is inclined relative to the axial direction of the ring body by an inclination angle alpha of 30-60 degrees.
4. The swirl ring for a plasma cutting gun of claim 1, wherein: the air inlet holes (13) are arranged in a plurality of numbers, and the air inlet holes (13) are uniformly distributed along the circumferential direction of the ring body.
5. The swirl ring for a plasma cutting gun of claim 1, wherein: the air inlet holes (13) are arranged along the radial extension of the ring body.
6. The swirl ring for a plasma cutting gun of claim 1, wherein: the shunting grooves (12) are provided with multiple heads, and the multiple-head shunting grooves (12) are distributed along the circumferential direction of the ring body.
7. The swirl ring for a plasma cutting gun of claim 1, wherein: the inner wall of the annular wall (1) is enclosed to form a hole (14) which penetrates through the annular body along the axial direction of the annular body.
8. The swirl ring for a plasma cutting gun of claim 7, wherein: the diameter W of the hole (14) is 9-12 mm; or the following steps: the diameter W of the hole (14) is 9-12 mm, the diameter M of the wall surface of the gas storage cavity (11) close to the outer wall side of the ring wall is 13.5-15 mm, and the height S of the gas storage cavity (11) in the axial direction of the ring body is 2.5-3.5 mm; the aperture D of the air inlet hole (13) is 0.85 mm-1.1 mm.
9. The swirl ring for a plasma cutting gun of claim 1, wherein: the outer wall of the annular wall (1) is provided with at least one sealing ring (2).
10. The swirl ring for a plasma cutting gun of claim 1, wherein: the groove depth h of the shunting groove (12) in the radial direction of the ring body is 0.4-1.5 mm; and/or the width k of the shunt groove (12) is 0.5-1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025352.7U CN216370627U (en) | 2021-12-03 | 2021-12-03 | Swirl ring for plasma cutting gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025352.7U CN216370627U (en) | 2021-12-03 | 2021-12-03 | Swirl ring for plasma cutting gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216370627U true CN216370627U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123025352.7U Active CN216370627U (en) | 2021-12-03 | 2021-12-03 | Swirl ring for plasma cutting gun |
Country Status (1)
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| CN (1) | CN216370627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023248146A1 (en) * | 2022-06-22 | 2023-12-28 | The South African Nuclear Energy Corporation (Soc) Ltd | Plasma torch |
-
2021
- 2021-12-03 CN CN202123025352.7U patent/CN216370627U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023248146A1 (en) * | 2022-06-22 | 2023-12-28 | The South African Nuclear Energy Corporation (Soc) Ltd | Plasma torch |
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