CN104294012B - Induction apparatus touch-proof protection device - Google Patents
Induction apparatus touch-proof protection device Download PDFInfo
- Publication number
- CN104294012B CN104294012B CN201410452095.0A CN201410452095A CN104294012B CN 104294012 B CN104294012 B CN 104294012B CN 201410452095 A CN201410452095 A CN 201410452095A CN 104294012 B CN104294012 B CN 104294012B
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- China
- Prior art keywords
- protective relay
- relay
- induction apparatus
- induction
- electric coil
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to a kind of induction apparatus touch-proof protection device; for induction hardening equipment; it includes detection transformator, protective relay and controls relay; described protective relay includes protective relay and obtains electric coil, protective relay normal opened contact and protective relay normally closed contact, and described control relay includes controlling relay and obtains electric coil and control relay normally open contact；The secondary side of described detection transformator is connected with described quenching apparatus body and described induction apparatus respectively, its primary side with obtain with described control relay normally open contact and described protective relay again after described protective relay normal opened contact parallel connection electric coil connect formation primary side loop；Described control relay obtains electric coil and described protective relay normally closed contact is connected with described PLC respectively.The present invention can make induced surface hardening equipment quit work immediately when induction apparatus is with workpiece touching, thus effectively protecting induction power supply and induction apparatus, reduces equipment fault and maintenance cost.
Description
Technical field
The present invention relates to induced surface hardening equipment, specifically a kind of induction apparatus touch-proof protection device.
Background technology
The heating of induced surface hardening equipment has fixing heating and two kinds of methods of mobile heating.Fixing heating means are exactly that induction apparatus does not move with workpiece；Mobile heating means are exactly have relative movement between induction apparatus and workpiece, it is possible to be that induction apparatus moves, it is also possible to be that workpiece moves.
Regardless of heating means, the small-gap suture that will keep certain between induction apparatus and workpiece just can complete heating.Keeping small-gap suture to make the possibility that there is touching between induction apparatus and workpiece between induction apparatus and workpiece, this touching can cause following consequence: in case of heating, causes the danger that induction power supply damages and induction apparatus damages；Can result in induction apparatus to damage when not heating.
Summary of the invention
The present invention is directed to the problems referred to above, it is provided that a kind of induction apparatus touch-proof protection device, this device is when induction apparatus produces touching with workpiece, it is possible to protection induction apparatus is from damage.
According to technical scheme: a kind of induction apparatus touch-proof protection device, for induction hardening equipment, described induction hardening equipment includes quenching apparatus body, upper thimble, lower thimble, induction apparatus and PLC；Described upper thimble and described lower thimble are arranged on described quenching apparatus body, are used for clamping workpiece；Described induction apparatus is enclosed within outside described workpiece, is used for sensing the described workpiece of heating；Described PLC is used for controlling described induction hardening equipment；Described protection device includes detection transformator, protective relay and controls relay; described protective relay includes protective relay and obtains electric coil, protective relay normal opened contact and protective relay normally closed contact, and described control relay includes controlling relay and obtains electric coil and control relay normally open contact；The secondary side of described detection transformator is connected with described quenching apparatus body and described induction apparatus respectively, its primary side with obtain with described control relay normally open contact and described protective relay again after described protective relay normal opened contact parallel connection electric coil connect formation primary side loop；Described control relay obtains electric coil and described protective relay normally closed contact is connected with described PLC respectively.
The secondary side of described detection transformator is parallel with capacitor.
The primary side of described detection transformator is parallel with surge absorber.
The method have technical effect that: the present invention can make induced surface hardening equipment quit work immediately when induction apparatus is with workpiece touching, thus effectively protecting induction power supply and induction apparatus, decreases equipment fault and maintenance cost；The present invention adopts common transformer, relay and capacitor, and loop structure is simple, and cost is low；Capacitor in the present invention can alleviate the interference of the high-frequency components invading detection transformator from induction apparatus；Surge absorber in the present invention can protect the secondary coil of detection transformator.
Accompanying drawing explanation
Fig. 1 is the circuit loop schematic diagram of the present invention.
The relay that controls that Fig. 2 is in the present invention obtains the output circuit figure of electric coil.
Fig. 3 is the output circuit figure of the protective relay normally closed contact in the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
In Fig. 1～Fig. 3, obtain electric coil 1, protective relay normal opened contact 1-1, protective relay normally closed contact 1-2 including protective relay, control relay and obtain electric coil 2, control relay normally open contact 2-1, surge absorber 3, detection transformator 4, capacitor 5, upper thimble 6, workpiece 7, induction apparatus 8, lower thimble 9, quenching apparatus body 10, PLC11 etc..
As shown in FIG. 1 to 3, the present invention is a kind of induction apparatus touch-proof protection device, and for induction hardening equipment, described induction hardening equipment includes quenching apparatus body 10, upper thimble 6, lower thimble 9, induction apparatus 8 and PLC11；Upper thimble 6 is arranged on quenching apparatus body 10 with lower thimble 9, is used for clamping workpiece 7；Induction apparatus 8 is enclosed within outside workpiece 7, is used for sensing heated parts 7；PLC11 is used for controlling induction hardening equipment.
Induction apparatus touch-proof protection device includes detection transformator 4, protective relay and controls relay; protective relay includes protective relay and obtains electric coil 1, protective relay normal opened contact 1-1 and protective relay normally closed contact 1-2, and control relay includes controlling relay and obtains electric coil 2 and control relay normally open contact 2-1.
Detection transformator 4 secondary side be connected with quenching apparatus body 10 and induction apparatus 8 respectively, its primary side with after protective relay normal opened contact 1-1 parallel connection again with control relay normally open contact 2-1 and protective relay obtain electric coil 1 connect formed primary side loop；Control relay obtains electric coil 2 and protective relay normally closed contact 1-2 is connected with PLC11 respectively.
The secondary side of detection transformator 4 is also parallel with capacitor 5.The effect of this capacitor 5 is the interference that can alleviate the high-frequency components invading detection transformator 4 from induction apparatus 8.
The primary side of detection transformator 4 is also parallel with surge absorber 3.Surge absorber 3 can protect the secondary coil of detection transformator 4.
The operation principle of the present invention is as follows with work process: the control relay accessing PLC11 obtains electric, obtain electric coil 2 energized action, control relay normally open contact 2-1 Guan Bi, upper thimble 6 and lower thimble 9 jack-up workpiece 7, workpiece 7 passes from induction apparatus 8, when workpiece 7 is touched with induction apparatus 8, the secondary circuit short-circuit of detection transformator 4, the impedance causing detection transformator 4 primary side declines, protective relay obtains electric coil 1 energized action, the protective relay normally closed contact 1-2 action accessing PLC11 makes quenching apparatus quit work immediately, thus protecting induction power supply and induction apparatus 8.
The present invention adopts common transformer, relay and capacitor, and loop structure is simple, and cost is low.The present invention can make induced surface hardening equipment quit work immediately when induction apparatus is with workpiece touching, thus effectively protecting induction power supply and induction apparatus, decreases equipment fault and maintenance cost.
Above the present invention has been carried out the enough detailed description with certain particularity.Those of ordinary skill in art is it should be understood that the description in embodiment is merely exemplary, and making under the premise of the true spirit and scope that not necessarily depart from the present invention is changed all should belong to protection scope of the present invention.Present invention scope required for protection is to be defined by described claims, rather than limited by the foregoing description in embodiment.
Claims (3)
1. an induction apparatus touch-proof protection device, for induction hardening equipment, described induction hardening equipment includes quenching apparatus body, upper thimble, lower thimble, induction apparatus and PLC；Described upper thimble and described lower thimble are arranged on described quenching apparatus body, are used for clamping workpiece；Described induction apparatus is enclosed within outside described workpiece, is used for sensing the described workpiece of heating；Described PLC is used for controlling described induction hardening equipment；It is characterized in that: described protection device includes detection transformator, protective relay and controls relay; described protective relay includes protective relay and obtains electric coil, protective relay normal opened contact and protective relay normally closed contact, and described control relay includes controlling relay and obtains electric coil and control relay normally open contact；The secondary side of described detection transformator is connected with described quenching apparatus body and described induction apparatus respectively, its primary side with obtain with described control relay normally open contact and described protective relay again after described protective relay normal opened contact parallel connection electric coil connect formation primary side loop；Described control relay obtains electric coil and described protective relay normally closed contact is connected with described PLC respectively.
2. the induction apparatus touch-proof protection device described in claim 1, is characterized in that: the secondary side of described detection transformator is parallel with capacitor.
3. the induction apparatus touch-proof protection device described in claim 1 or 2, is characterized in that: the primary side of described detection transformator is parallel with surge absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452095.0A CN104294012B (en) | 2014-09-05 | 2014-09-05 | Induction apparatus touch-proof protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452095.0A CN104294012B (en) | 2014-09-05 | 2014-09-05 | Induction apparatus touch-proof protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104294012A CN104294012A (en) | 2015-01-21 |
| CN104294012B true CN104294012B (en) | 2016-07-06 |
Family
ID=52313957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410452095.0A Active CN104294012B (en) | 2014-09-05 | 2014-09-05 | Induction apparatus touch-proof protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104294012B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2338349Y (en) * | 1998-09-18 | 1999-09-15 | 陈志松 | High frequency contaction induction liquid-embedding type gear wheel quenching machine |
| JP2005310645A (en) * | 2004-04-23 | 2005-11-04 | Ntn Corp | High-frequency induction hardening device |
| CN2831569Y (en) * | 2005-09-20 | 2006-10-25 | 天津减速机股份有限公司 | Overload warning protector |
| CN200988852Y (en) * | 2006-12-21 | 2007-12-12 | 攀枝花新钢钒股份有限公司 | Rail end quenching medium frequency power heating timing control circuit |
| CN101977456B (en) * | 2010-09-06 | 2012-08-01 | 河北工业大学 | Mobile wire induction heating controller |
| CN102676764B (en) * | 2012-06-01 | 2013-06-05 | 鄂州钢华机械制造有限公司 | Medium frequency induction quenching method for circumferential surface of roller |
| CN103117193A (en) * | 2013-01-24 | 2013-05-22 | 上海友邦工业控制系统有限公司 | Relay provided with internally-arranged protective circuit |
| CN103146909B (en) * | 2013-02-20 | 2014-09-17 | 中国一拖集团有限公司 | Electric control system used for scraper knife connecting seat induction quenching apparatus, and control method thereof |
| CN204097514U (en) * | 2014-09-05 | 2015-01-14 | 盐城高周波热炼有限公司 | Inductor block touch-proof protector |
-
2014
- 2014-09-05 CN CN201410452095.0A patent/CN104294012B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104294012A (en) | 2015-01-21 |
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Address after: 224100 No. 158 Zhang Jian Road, Dafeng Economic Development Zone, Yancheng City, Jiangsu Patentee after: YANCHENG NETUREN CO., LTD. Address before: 224199 No. 158 Zhang Jian Road, Dafeng Economic Development Zone, Yancheng City, Jiangsu Patentee before: YANCHENG NETUREN CO., LTD. |
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