CN109848615A - Shielding case that is air-cooled with optimization and improving cutting power - Google Patents
Shielding case that is air-cooled with optimization and improving cutting power Download PDFInfo
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- CN109848615A CN109848615A CN201910015271.7A CN201910015271A CN109848615A CN 109848615 A CN109848615 A CN 109848615A CN 201910015271 A CN201910015271 A CN 201910015271A CN 109848615 A CN109848615 A CN 109848615A
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- shielding case
- cover body
- insulator
- shielding
- cooled
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- 238000005520 cutting process Methods 0.000 title claims abstract description 41
- 238000005457 optimization Methods 0.000 title claims description 10
- 239000012212 insulator Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The present invention relates to it is a kind of with optimize it is air-cooled and improve cutting power shielding case, it includes shielding cover body (106), the shielding cover body (106) includes a distal end (101) and a proximal end (104), a spray-hole (110) is provided at the distal end (101), a step is provided in the shielding cover body (106), a cricoid insulator (105) is provided at the stepped locations, the cricoid insulator (105) has been disposed radially a coil vortex hole (108), a chamber (107) is formed between cricoid insulator (105) outer edge surface and shielding cover body (106) inner surface, the vortex hole (108) is connected with chamber (107).The present invention is a kind of with shielding case that is air-cooled and improving cutting power is optimized, it can improve the vortex intensity of plasma (orifice) gas, enhance cooling effect, improve the cutting power of shielding case service life and plasma cutting-torch；The serious forgiveness in actual use is reduced simultaneously, improves production efficiency.
Description
Technical field
The present invention relates to a kind of with shielding case that is air-cooled and improving cutting power is optimized, and belongs to plasma cutting technique neck
Domain.
Background technique
The basic accessory of existing fine plasma cutting torch includes: cutting torch main body, water pipe, electrode, nozzle, ring of eddy, band
Interior fixed cover, the outer fixed cover, shielding case of swirler.Wherein, water pipe is mounted in main body, electrode, nozzle, ring of eddy, interior solid
Fixed cover is sequentially sleeved on previous accessory and is mounted in cutting torch main body, and fixation is covered including shielding the enclosure, the outer fixed enclosure
On shielding case and it is mounted in cutting torch main body.Plasma cutting-torch is connected to power supply and gas console by pipeline.
After startup power supply, pilot arc is formed by the electrical control of power supply circuit board, between electrode and nozzle and is turned
It moves on on the metal material cut, plasma arc is generated, to cut with the movement of numerically-controlled machine tool to metal material
It cuts.
Period, plasma arc are gathered in the center of electrode, with the flow direction of plasma (orifice) gas, pass sequentially through nozzle passageway
Hole, shielding case passageway hole are reached by cutting metal.The temperature of plasma arc is up to 30000 DEG C or more, but plasma (orifice) gas and guarantor
Shield gas passes through ring of eddy respectively and swirler forms rotating vortex gas, forms a protective layer between arc and accessory passageway hole,
Therefore accessory will not be melted.But although accessory under the cooling of coolant liquid, has local area temperature excessively high, generate
Oxidative phenomena, to cause our seen fair wear and tear situations.Therefore, in the use process of entire plasma system, electricity
Pole, nozzle, shielding case are easiest to damage.
But in actual use, there is also some abnormal phenomenon, cause accessory easily damaged.For example, when perforation
When with cutting, the metal material in slot becomes tiny slag, with the air-flow in cutting torch, is largely blown away, but sometimes
Some slags can be returned head-on, between nozzle and the passageway hole of shielding case, so as to cause the spray-hole or shape both burnt
Arc in pairs, finally damages accessory.
In the prior art, since swirler needs to have non-conductive but good heat conductive new energy, usually by polyimides
Equal high molecular materials are made, higher cost, and therefore, which, which is generally designed, is fixed on interior fixed cover.Due to for a long time
It works under high temperature environment, the swirler made of high molecular material is easy aging, generates cracking phenomena, and section swirler hole meets with
It is no longer stable by the protection gas in swirler hole to damage, to influence the stabilization of plasma arc, cut quality is caused to decline.
Under normal conditions, end user can not discover the problem or because sky high cost is without replacement, influence production efficiency.
In addition, swirler fixes the rigging position on cover inside, determine that it in cutting torch general assembly, can be only positioned at shielding
The proximal end of cover.Due to formation vortex gas farther out from shielding case spray-hole, cause cooling effect bad and vortex gas dispersion be powerless,
Easily accelerate the natural wastage of shielding case and increases abnormal damage probability；Meanwhile because operative employee craftsmanship issues, when interior fixed cover
On insulator damage or hole block after, be not easy to find and solve the problems, such as this, cause cut quality problem.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of air-cooled with optimization for the above-mentioned prior art and improve
The shielding case of cutting power, it can improve the vortex intensity of plasma (orifice) gas, enhance cooling effect, improve shielding case and use the longevity
The cutting power of life and plasma cutting-torch；The serious forgiveness in actual use is reduced simultaneously, improves production efficiency.
The present invention solves the above problems used technical solution are as follows: a kind of with optimizing air-cooled and improve cutting power
Shielding case, it includes shielding cover body, and the shielding cover body includes that a distal end and a proximal end, the far-end are provided with
One spray-hole is provided with a step in the shielding cover body, a cricoid insulation is provided at the stepped locations
Body, the cricoid insulator have been disposed radially a coil vortex hole, the cricoid insulator outer edge surface and shielding cover body
A chamber is formed between inner surface, the vortex hole is connected with chamber.
Preferably, the shielding cover body is in hollow cone shape.
Preferably, the shielding cover body further includes a conical outer surface, is set between the conical outer surface and proximal end
It is equipped with a sealing element.
Preferably, the insulator is cooperated by way of interference fit, threaded connection or gluing with shielding cover body.
Preferably, the insulator is made of non-conductive but thermally conductive good material.
Preferably, the insulator is made of polyimides or ceramics.
Compared with the prior art, the advantages of the present invention are as follows:
1, insulator of the present invention is located at shielding case bosom position, and protection gas is more preferable to the cooling effect of shielding case, mentions
The high physical life of shielding case；Meanwhile more being concentrated by the vortex gas that insulator generates, is powerful, further to plasma
Arc is compressed, and is increased energy density, is improved cutting power；
2, the prior art in actual use, insulation due to the craftsmanship issues of operative employee, on interior fixed cover
After body damage or hole are blocked, it is not easy to find and solves the problems, such as this, cause cut quality problem.And insulator is set to by the present invention
After on shielding case, since the replacement frequency of shielding case is much higher than interior fixed cover, insulator can use the material of a time grade,
The service life of the material is substantially consistent with the service life of shielding case, and in the case where not increasing cost, help client that can be covert is solved
Certainly this potential problems improve the serious forgiveness in use process, and it is convenient to bring for actual production.
Detailed description of the invention
Fig. 1 is that the present invention is a kind of with the schematic perspective view for optimizing shielding case that is air-cooled and improving cutting power.
Fig. 2 is that the present invention is a kind of with the cross-sectional view for optimizing shielding case that is air-cooled and improving cutting power.
Fig. 3 is assembly of the shielding case that is a kind of air-cooled with optimization and improving cutting power of the invention in plasma cutting-torch
Relation schematic diagram.
Fig. 4 is that the present invention is a kind of with the life span comparison for optimizing shielding case and the prior art air-cooled and that improve cutting power
Figure.
Fig. 5 is that the present invention is a kind of with the average life span for optimizing shielding case and the prior art air-cooled and that improve cutting power
Comparison diagram.
Wherein:
Shielding case 100, distal end 101, conical outer surface 102, sealing element 103, proximal end 104, insulator 105, shielding case sheet
Body 106, chamber 107, vortex hole 108, spray-hole 110, nozzle 320, interior fixed cover 330, outer fixed cover 340, ring of eddy 350,
Electrode 360, water pipe 370, torch body 380, stomata 391, sandwich passage 392, hollow hole 393, channel 394.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Referring to Fig. 1, Fig. 2, of the present invention a kind of with shielding case that is air-cooled and improving cutting power is optimized, it includes
One be substantially in hollow cone shape shielding cover body 106, the shielding cover body 106 include a distal end 101 and one closely
104 are held, a spray-hole 110 is provided at the distal end 101, a step is provided in the shielding cover body 106, it is described
A cricoid insulator 105 is provided at stepped locations, the cricoid insulator 105 has been disposed radially the uniform cloth of a circle
Set and have certain angle vortex hole 108, cricoid 105 outer edge surface of insulator and shielding 106 inner surface of cover body it
Between formed a chamber 107, the vortex hole 108 is connected with chamber 107；It is somebody's turn to do when protection gas is reached by other accessories of cutting torch
When chamber 107, for storage gas in this, one side high pressure cold body can continue cooling shielding cover main body 106, on the other hand, storage
Be stored in this protection gas it is more stable from vortex hole 108 in pass through, stable vortex gas is formed, to spray from spray-hole 110
It penetrates.Simultaneously as insulator 105 is more concentrated by the vortex gas that vortex hole 108 generates, is facilitated close to distal end 101
Second of compression plasma arc, and improve cutting penetration capacity.
The shielding cover body 106 further includes a conical outer surface 102, the conical outer surface 102 and proximal end 104 it
Between be provided with a sealing element 103；
The insulator 105 is matched with shielding cover body 106 by modes such as interference fit, threaded connection or gluings
It closes；
The insulator 105 is made of non-conductive but thermally conductive good material, such as polyimides, ceramics.
Fig. 3 is the assembly relation schematic diagram of shielding case 100 of the invention in plasma cutting-torch.The plasma cutting-torch includes
Shielding case 100, nozzle 320, interior fixed cover 330, interior fixed cover 330, outer fixed cover 340, ring of eddy 350, electrode 360, water pipe
370 and cutting torch main body 380.When assembly, first water pipe 370 is installed into torch body 380 by interference fit；Then electrode
360 entangle water pipe 370, and are connected through a screw thread, and are mounted in cutting torch main body 380；It is close that subsequent ring of eddy 350 is inserted into nozzle 320
End, the two cover live electrode 360, by interference fit, are mounted in cutting torch main body 380；Interior fixed cover 330 entangles nozzle 320, leads to
Threaded connection is crossed, is mounted in cutting torch main body 380, nozzle 320 is locked on axial position；Shielding case 100 is put in interior fixed cover
On 330, outer fixed cover 340 entangles shielding case 100, is connected through a screw thread, is fixed in cutting torch main body 380, on axial position
Lock shielding case 100.
Protection gas sprays from the stomata 391 of cutting torch main body 380, the aperture on 330 proximal ends of interior fixed cover, into folder
Layer channel 392, then by the hollow hole 393 being fixed on interior fixed cover 330, and into the main body 106 of shielding case 100 and absolutely
Chamber 107 between edge body 105 forms vortex gas by the radial hole with angle in insulator 105, and then along nozzle 320
Outer surface and shielding case 100 inner surface formed channel 394, to the distal end spray-hole of shielding case 110 spray.
Fig. 4 is that the life span comparison of the present invention and the prior art scheme.In order to obtain the experimental data of scientific and precise, dependent variable
All the same, only change uses the shielding case and shielding case of the invention of the prior art, a large amount of cutting test is carried out, to obtain screen
Cover the service life of cover.Cutting method are as follows: the principle that " wearing a secondary aperture, cut one meter " is carried out to just identical steel plate repeats this operation.When
Bowlder, the i.e. shielding case do not reach end of life to the spray-hole of shielding case distal end.Therefore, this experimental data only to perforation number into
Row record is compared with.
Fig. 5 is the average life span comparison diagram of the present invention with the prior art.By analysis of experimental data, shielding case of the invention
Service life can reach 4.2 times of the prior art or so, greatly improve the service life of shielding case, reduce actual use at
This.
Outside above-described embodiment, the invention also includes have other embodiments, all use equivalent transformation or equivalent replacement sides
The technical solution that formula is formed, should all fall within the scope of the hereto appended claims.
Claims (6)
1. shielding case that is a kind of air-cooled with optimization and improving cutting power, it is characterised in that: it includes shielding cover body
(106), the shielding cover body (106) includes a distal end (101) and a proximal end (104), is arranged at the distal end (101)
There is a spray-hole (110), is provided with a step in the shielding cover body (106), is provided with one at the stepped locations
A cricoid insulator (105), the cricoid insulator (105) have been disposed radially a coil vortex hole (108), the ring-type
Insulator (105) outer edge surface and shielding cover body (106) inner surface between formed a chamber (107), the vortex hole
(108) it is connected with chamber (107).
2. shielding case that is a kind of air-cooled with optimization and improving cutting power according to claim 1, it is characterised in that: institute
Shielding cover body (106) is stated in hollow cone shape.
3. shielding case that is a kind of air-cooled with optimization and improving cutting power according to claim 1, it is characterised in that: institute
Stating shielding cover body (106) further includes a conical outer surface (102), between the conical outer surface (102) and proximal end (104)
It is provided with a sealing element (103).
4. shielding case that is a kind of air-cooled with optimization and improving cutting power according to claim 1, it is characterised in that: institute
Insulator (105) is stated to be cooperated by way of interference fit, threaded connection or gluing with shielding cover body (106).
5. shielding case that is a kind of air-cooled with optimization and improving cutting power according to claim 1, it is characterised in that: institute
Insulator (105) are stated to be made of non-conductive but thermally conductive good material.
6. shielding case that is a kind of air-cooled with optimization and improving cutting power according to claim 5, it is characterised in that: institute
Insulator (105) are stated to be made of polyimides or ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015271.7A CN109848615A (en) | 2019-01-08 | 2019-01-08 | Shielding case that is air-cooled with optimization and improving cutting power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015271.7A CN109848615A (en) | 2019-01-08 | 2019-01-08 | Shielding case that is air-cooled with optimization and improving cutting power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109848615A true CN109848615A (en) | 2019-06-07 |
Family
ID=66894155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910015271.7A Pending CN109848615A (en) | 2019-01-08 | 2019-01-08 | Shielding case that is air-cooled with optimization and improving cutting power |
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| Country | Link |
|---|---|
| CN (1) | CN109848615A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0584579A (en) * | 1991-02-28 | 1993-04-06 | Komatsu Ltd | Plasma torch for cutting |
| CN203875469U (en) * | 2014-06-04 | 2014-10-15 | 常州市金球焊割设备有限公司 | Low-frequency plasma cutting gun |
| CN104162734A (en) * | 2014-07-11 | 2014-11-26 | 武汉慧谷银河智能系统工程有限公司 | Arc forming method for plasma cutting machine |
| CN205834463U (en) * | 2016-07-11 | 2016-12-28 | 周国清 | A kind of dual-purpose plasma cutting-torch of Rapid Circulation water-cooled |
| CN206139972U (en) * | 2016-10-14 | 2017-05-03 | 周楠 | Good plasma cutting torch dispels heat |
| CN107249803A (en) * | 2015-08-04 | 2017-10-13 | 海别得公司 | Improved plasma arc cutting system, running stores and operating method |
| CN206898567U (en) * | 2017-05-17 | 2018-01-19 | 周楠 | A kind of new type nozzle and apply its plasma cutting-torch |
| CN209954042U (en) * | 2019-01-08 | 2020-01-17 | 陶玉梅 | Shielding cover with optimized air cooling and improved cutting capability |
-
2019
- 2019-01-08 CN CN201910015271.7A patent/CN109848615A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0584579A (en) * | 1991-02-28 | 1993-04-06 | Komatsu Ltd | Plasma torch for cutting |
| CN203875469U (en) * | 2014-06-04 | 2014-10-15 | 常州市金球焊割设备有限公司 | Low-frequency plasma cutting gun |
| CN104162734A (en) * | 2014-07-11 | 2014-11-26 | 武汉慧谷银河智能系统工程有限公司 | Arc forming method for plasma cutting machine |
| CN107249803A (en) * | 2015-08-04 | 2017-10-13 | 海别得公司 | Improved plasma arc cutting system, running stores and operating method |
| CN205834463U (en) * | 2016-07-11 | 2016-12-28 | 周国清 | A kind of dual-purpose plasma cutting-torch of Rapid Circulation water-cooled |
| CN206139972U (en) * | 2016-10-14 | 2017-05-03 | 周楠 | Good plasma cutting torch dispels heat |
| CN206898567U (en) * | 2017-05-17 | 2018-01-19 | 周楠 | A kind of new type nozzle and apply its plasma cutting-torch |
| CN209954042U (en) * | 2019-01-08 | 2020-01-17 | 陶玉梅 | Shielding cover with optimized air cooling and improved cutting capability |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20220826 Address after: No. 1 Baizhang Chuangye Middle Road, Chunjiang Town, Xinbei District, Changzhou City, Jiangsu Province, 213002 Applicant after: Changzhou sanmax Industrial Equipment Co.,Ltd. Address before: No. 17, Dungou Shang, Dajiang Village Committee, Chunjiang Town, Xinbei District, Changzhou City, Jiangsu Province, 213002 Applicant before: Tao Yumei |