CN105783530A - Clamping and electricity-conducting device for auxiliary electrode of vacuum arc remelting furnace - Google Patents
Clamping and electricity-conducting device for auxiliary electrode of vacuum arc remelting furnace Download PDFInfo
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- CN105783530A CN105783530A CN201610263342.1A CN201610263342A CN105783530A CN 105783530 A CN105783530 A CN 105783530A CN 201610263342 A CN201610263342 A CN 201610263342A CN 105783530 A CN105783530 A CN 105783530A
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- China
- Prior art keywords
- pneumatic chuck
- auxiliary electrode
- clamping
- pneumatic
- rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
Abstract
The invention discloses a clamping and electricity-conducting device for an auxiliary electrode of a vacuum arc remelting furnace. A pneumatic chuck is arranged at the lower end of a thrust rod; a conductive rod is arranged inside the thrust rod; a conductive head is arranged at the lower end of the pneumatic chuck and is connected to the lower end of the conductive rod; an insulation sleeve is arranged on the outer side of the thrust rod and the outer side of the pneumatic chuck, and a pneumatic jacket is arranged outside the insulation sleeve; steel balls are embedded into holes of the pneumatic jacket, the insulation sleeve is arranged between the pneumatic jacket, the thrust rod and the pneumatic chuck, and a detection ring is arranged at the neck part in the middle of the pneumatic jacket. The clamping and electricity-conducting device for the auxiliary electrode is moved to the part right above the auxiliary electrode, an operation air cylinder pulls back the pneumatic chuck, and then the steel balls are retracted; the clamping and electricity-conducting device for the auxiliary electrode is inserted into a hole in the upper end of the auxiliary electrode, the detection ring is pushed upwards, the operation air cylinder moves for pushing out the pneumatic chuck after the detection ring reaches the position, the steel balls are pushed out, and then the clamping and electricity-conducting device for the auxiliary electrode is vertically lifted. The clamping and electricity-conducting device has the advantages that the electrical conductivity is good, the strength of clamping the auxiliary electrode is high, and the service life is long.
Description
Technical field
The invention belongs to smelting non-ferrous metal equipment technical field, be specifically related to a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode and electric installation.
Background technology
Vacuum consumable electrode arc furnace (VAR) is mainly used to the metals such as melting titanium and zirconium as the visual plant of smelting non-ferrous metal, and its principle is to rely on the electrical discharge arc between power anode and negative electrode constantly melted and drop onto the process carrying out crystallisation by cooling in crystallizer by the metal electrode as negative electrode under vacuum conditions.In process of production, auxiliary electrode is generally used cathode electrode bar and metal electrode to be coupled together, wherein the lower end of auxiliary electrode is welded with metal electrode, and the upper end clamping of auxiliary electrode and conduction are to clamp and make its shoulder to contact conduction with electrode stem its upper end neck by pneumatic chuck.Owing between electrode stem and auxiliary electrode, the electric current density of UNICOM generally reaches several thousand amperes even up to ten thousand, and the processing roughness that existence between auxiliary electrode shoulder and electrode stem is certain, actual conduction is realized by point cantact, under bigger electric current density, the card neck of auxiliary electrode and the temperature of shoulder are higher, there is auxiliary electrode neck to be heated situation about being elongated, and after long Reusability, also can aggravate the rough and uneven in surface phenomenon of auxiliary electrode shoulder conducting surface, further cause local conduction, even there will be the starting the arc between auxiliary electrode and electrode stem and burning phenomenon, affect the service life of auxiliary electrode and electrode stem.The problems such as above auxiliary electrode clamps and electrically conducting manner exists at the bottom of poorly conductive, auxiliary electrode chuck strength, the life-span is short.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode and electric installation, solve the clamping of existing auxiliary electrode and the poorly conductive of electrically conducting manner, auxiliary electrode chuck strength is low, the life-span is short problem, have that good conductivity, auxiliary electrode chuck strength be high, the feature of life-span length.
To achieve these goals, the technical solution used in the present invention is, a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode and electric installation, and including the distance rod with cylinders, distance rod lower end is provided with pneumatic chuck；The inside of distance rod is provided with conducting rod, and the upper end of conducting rod connects the negative electrode of power supply；Pneumatic chuckLower surface on left-hand thread conductive head, the lower surface of conducting rod is through distance rod and pneumatic chuck, and conductive head is connected by screw with conducting rod lower surface；The outside of distance rod and pneumatic chuck is provided with insulation sleeve, and the outside of insulation sleeve is provided with pneumatic chuck；Steel ball is embedded in the hole of the pneumatic chuck being connected with frame, and insulation sleeve is arranged between pneumatic chuck and distance rod and pneumatic chuck, detection ring be arranged on pneumatic chuck middle neck place and can at neck place slidably.
The material of described pneumatic chuck and pneumatic chuck is 30CrMo, and wherein pneumatic chuck surface is cast with ceramic insulating layer.
Described conducting rod and the material of conductive head are T2 copper, and the material of insulation sleeve is politef, and the material of steel ball is bearing steel.
The lower end of described pneumatic chuck is variable-diameter structure, to have coordinated release and the retraction of steel ball.
Described detection ring is made up of two semi-circular portions, and both are attached by two screws.
The invention has the beneficial effects as follows:
Promote distance rod and pneumatic chuck to realize the clamping to auxiliary electrode endoporus by cylinder, and the conductive head connecting conducting rod can be pressed on the conducting surface of auxiliary electrode by the pneumatic chuck released, and makes auxiliary electrode be connected to the negative electrode of power supply.By the position measurement of detection ring being checked further the reliability of abrasion and the clamping confirming auxiliary electrode.Concrete effect is as follows:
1) clamping mode is auxiliary electrode endoporus clamping mode, and its endoporus clamping place is big compared with neck grip dimensions, has higher intensity, effectively avoids the elongation after auxiliary electrode is heated.
2) conical surface of conductive head and auxiliary electrode be actively compression type ring shaped contact, it is ensured that contact and conduct electricity reliable.
3) auxiliary electrode clamping can determine the abrasion of auxiliary electrode and the reliability of clamping by measurement detection ring position on pneumatic clamps is overlapped after completing.
This apparatus structure achieves the clamping to vacuum consumable electrode arc furnace auxiliary electrode and conducting function, and simple and compact for structure, cost is low, and reliability is high, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation during auxiliary electrode releasing orientation of the present invention.
Fig. 2 is structural representation when auxiliary electrode of the present invention clamping conduction state.
Fig. 3 is the structural representation of detection ring, and wherein Fig. 3 (a) is axonometric drawing；Fig. 3 (b) is front view.
In figure: 1. conducting rod, 2. distance rod, 3. insulation sleeve, 4. pneumatic chuck, 5. pneumatic chuck, 6. detection ring, 7. steel ball, 8. screw, 9. conductive head, 10. auxiliary electrode.
Detailed description of the invention
It is described in further details below in conjunction with the accompanying drawing structural principle to the present invention and operation principle.
Referring to Fig. 1,2,3, a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode and electric installation, including the distance rod 2 with cylinders, distance rod 2 lower end is provided with pneumatic chuck 5；The inside of distance rod 2 is provided with conducting rod 1, and the upper end of conducting rod 1 connects the negative electrode of power supply；Pneumatic chuck 5Lower surface on left-hand thread conductive head 9, the lower surface of conducting rod 1 is through distance rod 2 and pneumatic chuck 5, and conductive head 9 is connected by screw 8 with conducting rod 1 lower surface；The outside of distance rod 2 and pneumatic chuck 5 is provided with insulation sleeve 3, and the outside of insulation sleeve 3 is provided with pneumatic chuck 4；Steel ball 7 is embedded in the hole of the pneumatic chuck 4 being connected with frame, and insulation sleeve 3 is arranged between pneumatic chuck 4 and distance rod 2 and pneumatic chuck 5, detection ring 6 be arranged on pneumatic chuck 4 middle neck place and can at neck place slidably.
Described pneumatic chuck 5 and the material of pneumatic chuck 4 are 30CrMo, and wherein pneumatic chuck surface is cast with ceramic insulating layer.
Described conducting rod 1 and the material of conductive head 9 are T2 copper, and the material of insulation sleeve 3 is politef, and the material of steel ball 7 is bearing steel.
The lower end of described pneumatic chuck 5 is variable-diameter structure, to have coordinated release and the retraction of steel ball.
Described detection ring 6 is made up of two semi-circular portions, and both are attached by two screws.
The present invention for the clamping of vacuum consumable electrode arc furnace auxiliary electrode and the work process of conduction is:
1) being placed in the furnace chamber of vacuum consumable electrode arc furnace by auxiliary electrode, wherein one end of clamping is straight up.
2) as it is shown in figure 1, drive the related device of vacuum consumable electrode arc furnace that the clamping of auxiliary electrode and electric installation move to the surface of auxiliary electrode, pneumatic chuck is retracted by now operation cylinder action, and steel ball is in retracted mode.
3) related device of vacuum consumable electrode arc furnace is driven clamping and the electric installation of auxiliary electrode to be vertically slowly inserted in the upper end hole of auxiliary electrode, now detection ring is continuous upwardly along the neck of pneumatic chuck by the outer ring of auxiliary electrode, after detection ring arrives corresponding position, pneumatic chuck is released by operation cylinder action, steel ball is in release state, clamping and the electric installation of auxiliary electrode are vertically mentioned the clamping and conduction that namely complete auxiliary electrode by the related device now driving vacuum consumable electrode arc furnace, as shown in Figure 2.
That the present invention is applicable not only to vacuum consumable electrode arc furnace auxiliary electrode and conduction, it is also possible in the clamping of auxiliary electrode and the conduction of all kinds of type of furnaces such as electroslag furnace.Similar type when other type of furnaces use belongs to the interest field of this patent.
Claims (5)
1. the clamping for vacuum consumable electrode arc furnace auxiliary electrode and electric installation, it is characterised in that including the distance rod (2) with cylinders, distance rod (2) lower end is provided with pneumatic chuck (5)；The inside of distance rod (2) is provided with conducting rod (1), and the upper end of conducting rod (1) connects the negative electrode of power supply；On the lower surface of pneumatic chuck (5), left-hand thread conductive head (9), and the lower surface of conducting rod (1) is through distance rod (2) and pneumatic chuck (5), and conductive head (9) is connected by screw (8) with conducting rod (1) lower surface；The outside of distance rod (2) and pneumatic chuck (5) is provided with insulation sleeve (3), and the outside of insulation sleeve (3) is provided with pneumatic chuck (4)；Steel ball (7) is embedded in the hole of the pneumatic chuck (4) being connected with frame, insulation sleeve (3) is arranged between pneumatic chuck (4) and distance rod (2) and pneumatic chuck (5), detection ring (6) be arranged on pneumatic chuck (4) middle neck place and can at neck place slidably.
2. a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode according to claim 1 and electric installation, it is characterized in that, described pneumatic chuck (5) and the material of pneumatic chuck (4) are 30CrMo, and wherein pneumatic chuck surface is cast with ceramic insulating layer.
3. a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode according to claim 1 and electric installation, it is characterized in that, described conducting rod (1) and the material of conductive head (9) are T2 copper, and the material of insulation sleeve (3) is politef, and the material of steel ball (7) is bearing steel.
4. a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode according to claim 2 and electric installation, it is characterised in that the lower end of described pneumatic chuck (5) is variable-diameter structure.
5. a kind of clamping for vacuum consumable electrode arc furnace auxiliary electrode according to claim 1 and electric installation, it is characterised in that described detection ring (6) is made up of two semi-circular portions, and both are attached by two screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263342.1A CN105783530B (en) | 2016-04-26 | 2016-04-26 | A kind of clamping and electric installation for vacuum consumable electrode arc furnace auxiliary electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263342.1A CN105783530B (en) | 2016-04-26 | 2016-04-26 | A kind of clamping and electric installation for vacuum consumable electrode arc furnace auxiliary electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105783530A true CN105783530A (en) | 2016-07-20 |
| CN105783530B CN105783530B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610263342.1A Active CN105783530B (en) | 2016-04-26 | 2016-04-26 | A kind of clamping and electric installation for vacuum consumable electrode arc furnace auxiliary electrode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858526A (en) * | 2017-11-30 | 2018-03-30 | 宝鸡市金盛源钛业有限公司 | Vacuum consumable electrode arc furnace |
| CN110218876A (en) * | 2019-07-23 | 2019-09-10 | 应达工业（上海）有限公司 | A kind of electrode clamping lift structure of electroslag refining furnace |
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| CN101769685A (en) * | 2008-12-30 | 2010-07-07 | 中国恩菲工程技术有限公司 | Electrode device |
| US20120140788A1 (en) * | 2009-03-31 | 2012-06-07 | Carkin Gerald E | Electrode holder assembly and furnace comprising same |
| CN202514099U (en) * | 2012-03-30 | 2012-10-31 | 中国有色金属工业第十四冶金建设公司 | Electrode clamping device of single-stage electric-arc smelting furnace |
| CN103045877A (en) * | 2012-12-19 | 2013-04-17 | 西部超导材料科技股份有限公司 | Automatic arcing device for vacuum consumable electric-arc furnace and control method |
| CN103940225A (en) * | 2014-04-23 | 2014-07-23 | 宝鸡市凯博真空科技有限公司 | Coaxially-powered self-consuming electric arc vacuum skull furnace |
| CN204779751U (en) * | 2015-07-16 | 2015-11-18 | 湖南金天钛业科技有限公司 | A auxiliary electrode for consumable vacuum arc furnace |
| CN204906760U (en) * | 2015-08-12 | 2015-12-23 | 航天海鹰(哈尔滨)钛业有限公司 | A electrically conductive insulating mechanism for electrode stem pneumatic chuck |
-
2016
- 2016-04-26 CN CN201610263342.1A patent/CN105783530B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769685A (en) * | 2008-12-30 | 2010-07-07 | 中国恩菲工程技术有限公司 | Electrode device |
| US20120140788A1 (en) * | 2009-03-31 | 2012-06-07 | Carkin Gerald E | Electrode holder assembly and furnace comprising same |
| CN202514099U (en) * | 2012-03-30 | 2012-10-31 | 中国有色金属工业第十四冶金建设公司 | Electrode clamping device of single-stage electric-arc smelting furnace |
| CN103045877A (en) * | 2012-12-19 | 2013-04-17 | 西部超导材料科技股份有限公司 | Automatic arcing device for vacuum consumable electric-arc furnace and control method |
| CN103940225A (en) * | 2014-04-23 | 2014-07-23 | 宝鸡市凯博真空科技有限公司 | Coaxially-powered self-consuming electric arc vacuum skull furnace |
| CN204779751U (en) * | 2015-07-16 | 2015-11-18 | 湖南金天钛业科技有限公司 | A auxiliary electrode for consumable vacuum arc furnace |
| CN204906760U (en) * | 2015-08-12 | 2015-12-23 | 航天海鹰(哈尔滨)钛业有限公司 | A electrically conductive insulating mechanism for electrode stem pneumatic chuck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858526A (en) * | 2017-11-30 | 2018-03-30 | 宝鸡市金盛源钛业有限公司 | Vacuum consumable electrode arc furnace |
| CN110218876A (en) * | 2019-07-23 | 2019-09-10 | 应达工业（上海）有限公司 | A kind of electrode clamping lift structure of electroslag refining furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105783530B (en) | 2017-11-03 |
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