CN1126127A - Pipe supplying system of liquid arc welding torch or arc cutting torch - Google Patents
Pipe supplying system of liquid arc welding torch or arc cutting torch Download PDFInfo
- Publication number
- CN1126127A CN1126127A CN 94115236 CN94115236A CN1126127A CN 1126127 A CN1126127 A CN 1126127A CN 94115236 CN94115236 CN 94115236 CN 94115236 A CN94115236 A CN 94115236A CN 1126127 A CN1126127 A CN 1126127A
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- cable
- cooling fluid
- torch
- welding
- hose
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Abstract
The line-pipe system for liquid cooled welding torch for arc welding or cutting includes liquid feed and return pipes and current feed lines. In order to decrease weight and increase flexibility, two welding cables are used, one cooled by the cooling liquid in feed pipe and another by the liquid in return pipe.
Description
The present invention relates to the pipeline system of a kind of liquid-cooled arc torch or arc cutting torch, comprise the influent stream that is used for cooling fluid, reflux and be used for the feed line of welding current.
To liquid-cooled arc torch or arc cutting torch supply electric current, protective gas, cooling fluid, comprise that in case of necessity the feed line of welding wire etc. should be convenient to the operation of welding torch, and have flexible pipeline or flexible pipe.The influent stream and the return hose of welding cable wherein, protective gas flexible pipe, control cable and cooling fluid---also may comprise welding wire input flexible pipe---on the MIG/MAG welding torch all being concentrated into is a hose bundle, and this hose bundle is connected between welding machine and the welding torch usually.In automatic welder(welding machine), the distance between welding torch and the welding machine is shorter, so every flexible pipe and cable also can directly be connected between welding torch and the welding machine.In order to realize the cooling of welding cable, make the long-pending electric current of upward carrying of small cross sections and equate without the cable current that cools off, and in order to keep the flexibility of cable, the cable that leads to welding torch is placed in the reflux line of cooling water, the welding cable that perhaps allows the cooling water flow that refluxes constitute via flexible pipe.Hold the cooling fluid return hose of welding cable or allow that the welding cable that the backflow cooling fluid is passed must correspondingly have bigger diameter.So known feed line or hose bundle have bigger cross section always, because weight is bigger, thereby influenced its flexibility, particularly small-sized welding torch is caused operation inconvenience.
Task of the present invention is, improves the pipeline system of above-mentioned liquid-cooled arc torch or arc cutting torch, reduces the weight of pipeline system greatly, improves its flexibility.
Solution of the present invention is, is provided with two root beads and connects cable, and a cooling fluid cooling wherein by influent stream, another root is by the cooling fluid cooling that refluxes.The conductive cross-sectional area of two cables in this scheme is compared by the cooling liquid cooling cable but that refluxes with single, can do lessly.So just can reduce the diameter of coolant hose that refluxes greatly, thereby obviously improve the flexibility of welding torch feed line on the whole, can also alleviate the overall weight of welding torch pipeline system simultaneously.In feeder system of the present invention, the cooling fluid of influent stream also can be used for cooling off two root beads and meet of cable, compares with the known hose bundle that welding cable is set in the backflow coolant pipe, and it can not influence the cooling of welding torch.
According to the present invention, two root beads can be connect in the influent stream and return hose that cable is arranged on cooling fluid.In addition, two root beads connect influent stream and the return hose that cable itself also can constitute cooling water.
According to a special example of the present invention, where necessary, cooling fluid connects the central influent stream and the backflow of cable at two root beads through delivery hose.Can realize very effectively cooling to cable like this.The heat that produces in welding cable can be taken away by the cooling fluid of welding cable internal flow on the one hand, can also be dispersed into flexible pipe or its overcoat space on every side with convection type by the surface of welding cable on the other hand.Situation about directly contacting with cable with cooling fluid is different, because cooling fluid flows in a stream guiding tube, takes place so can prevent the danger of corroding cable.
Two root beads connect cable and preferably have about equally sectional area, help manufacturing process like this, and in order to simplify the fixed mechanism of flexible pipe, the influent stream of cooling fluid can have identical diameter with return hose.
A kind of very favorable structure is, feed line is formed a hose bundle, and this hose bundle can link together with welding torch.The advantage of this structure is, compares with known hose bundle, and its hose bundle diameter can be reduced to 50%, so hose bundle is lighter and easy operating.
Other purposes of the present invention, advantage, feature and purposes are seen two examples shown in the following drawings and explanation thereof.Wherein all are described and/or illustrated feature can be formed the solution of the present invention with any reasonable manner, are not subjected to combination in the claims of these features or the constraint of quoting.
Fig. 1 represents the schematic diagram of a welding torch, comprises a kind of hose bundle example of the present invention.
Fig. 2 represents a kind of cross section of cable of the present invention.
Fig. 3 represents the cross section of another kind of cable of the present invention.
The welding torch 1 that Fig. 1 represents is a tungsten electrode-inert gas-welding torch.Shown in the operation principle of welding torch do not belong to content of the present invention, therefore no longer explanation.On welding torch 1, connecting a hose bundle 2, inputing or outputing welding current, protective gas and cooling fluid to welding torch 1 by this hose bundle.In addition, also comprise one (unillustrated) control cable in the hose bundle 2.
The outside of hose bundle 2 have a tubulose, by the sleeve pipe 3 that flexible and wear-resisting basically material are made, be two in the inside of hose bundle and be used for the influent stream of cooling fluid and the flexible pipe 4,5 and the protective gas pipeline 8 of backflow.All be furnished with welding cable 6,7 not only in the influent stream flexible pipe 4 of cooling fluid, and in the return hose 5 of cooling fluid, in the selected in the drawings example, cable has conductive cross-sectional area about equally.Because two root beads connect cable 6,7 and compare with unit cable, have bigger surface area, so thermal diffusivity are better, two root beads connect the conductive cross-sectional area of cable 6,7 under the situation that electrical power equates, can be less than the conductive cross-sectional area of unit cable.The conductive cross-sectional area that two root beads connect cable 6,7 almost can be reduced to known pipeline system unit cable conductive cross-sectional area 1/4th.Like this, cooling fluid return hose 5 and hose bundle 2 cross sections own also can reduce, and the cooling effect of welding torch 1 does not descend.This structure can increase the flexibility of hose bundle 2 when reducing weight, this hose bundle for 4-8 meters commercially available length is very considerable.In a word, hose bundle 2 will become very light.
For example, the external diameter of the hose bundle of the water-cooled WIG welding torch that current capacity is 500A only is 17 millimeters, and the external diameter of conventional hoses bundle is about 31 millimeters.At load is that the external diameter of hose bundle can be reduced to 18-22 millimeters from 28 millimeters on the MIG/MAG welding torch of 400A.
Fig. 2 and Fig. 3 represent a kind of shape of cross section of liquid-cooled welding cable.Cable 6 or 7 is positioned at the inside of overcoat 9 in Fig. 2, cooling fluid cable 6 or 7 and overcoat 9 between cavity 10 in flow into or flow out.
What Fig. 3 represented is a kind of special construction of liquid-cooled welding cable, be characterized in, and welding cable 6 or 7 and coolant hose 4 or 5 arranged concentric, its outer radial periphery is surrounded by overcoat 9, and this overcoat for example can be made of plastic.This structure can realize effective cooling of welding cable 6,7, because can heat be distributed through overcoat 9 by convection current on the other hand directly by cooled heat transfer fluid mobile in welding cable 6,7 internal cavities 10 on the one hand.Cooling fluid flows in coolant hose 4,5, and its advantage is that cooling fluid does not directly contact with welding cable 6,7, so can avoid corroding cable.
Claims (7)
1, the pipeline system of liquid-cooled arc torch or arc cutting torch, comprise the influent stream that is used for cooling fluid, reflux and be used for the feed line of welding current, it is characterized in that, be provided with two root beads and connect cable (6,7), a cooling fluid cooling by influent stream wherein, another root is by the cooling fluid cooling that refluxes.
2, pipeline system as claimed in claim 1 is characterized in that, two root beads connect in the influent stream and return hose (4,5) that cable (6,7) lays respectively at cooling fluid.
3, pipeline system as claimed in claim 1 or 2 is characterized in that, two root beads connect influent stream and the return hose that cable (6,7) itself has constituted cooling water.
As any one described pipeline system among the claim 1 to 3, it is characterized in that 4, where necessary, cooling fluid connects the central influent stream and the backflow of cable (6,7) at two root beads through delivery hose (4,5).
As any one the described pipeline system among the claim 1 to 4, it is characterized in that 5, two root beads connect cable (6,7) and have about equally sectional area.
As any one described pipeline system among the claim 1 to 5, it is characterized in that 6, the influent stream of cooling fluid and return hose (4,5) have identical diameter.
As any one described pipeline system among the above-mentioned claim, it is characterized in that 7, feed line (4,5,6,7) is formed a hose bundle (2), this hose bundle can link together with welding torch (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94115236 CN1126127A (en) | 1994-09-20 | 1994-09-20 | Pipe supplying system of liquid arc welding torch or arc cutting torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94115236 CN1126127A (en) | 1994-09-20 | 1994-09-20 | Pipe supplying system of liquid arc welding torch or arc cutting torch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1126127A true CN1126127A (en) | 1996-07-10 |
Family
ID=5037435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94115236 Pending CN1126127A (en) | 1994-09-20 | 1994-09-20 | Pipe supplying system of liquid arc welding torch or arc cutting torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1126127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806851A (en) * | 2018-06-06 | 2018-11-13 | 洛阳正奇机械有限公司 | A kind of special liquid cooling cable of new-energy automobile direct current 600A charging guns |
-
1994
- 1994-09-20 CN CN 94115236 patent/CN1126127A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806851A (en) * | 2018-06-06 | 2018-11-13 | 洛阳正奇机械有限公司 | A kind of special liquid cooling cable of new-energy automobile direct current 600A charging guns |
| CN108806851B (en) * | 2018-06-06 | 2021-01-01 | 洛阳正奇机械有限公司 | Special liquid cooling cable of new energy automobile direct current 600A rifle that charges |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |