CN2762481Y - Digital display bearing induction heater - Google Patents
Digital display bearing induction heater Download PDFInfo
- Publication number
- CN2762481Y CN2762481Y CN 200420075538 CN200420075538U CN2762481Y CN 2762481 Y CN2762481 Y CN 2762481Y CN 200420075538 CN200420075538 CN 200420075538 CN 200420075538 U CN200420075538 U CN 200420075538U CN 2762481 Y CN2762481 Y CN 2762481Y
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- CN
- China
- Prior art keywords
- temperature
- bearing
- time
- circuit
- induction heater
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a digital display bearing induction heater, which is provided with a main control circuit for heating a bearing. The main control circuit adopts an electron temperature and time control circuit and a temperature and time controlling display alarm circuit. A temperature sensor is absorbed on the inner ring of the heated bearing. A 220 V power supply is connected with an inductance coil which is connected to the normally open points of alternating current contactor J0-1 of the main control circuit. The alternating current contactor J0 is switched on with a manual heating switch K1 through an intermediate relay J1. The electron temperature and time control circuit and the temperature and time controlling display alarm circuit is switched on with a temperature and time display set circuit of a control panel through double-connecting buttons N1 and N2. The other pair of contacts of the buttons N1 and N2 are switched on with the temperature and time controlling display alarm circuit. The utility model has the advantages of simple operation, high heating speed, strong versatility and energy saving, and is convenient for the bearing of interference fit and the assembly of gears, pulleys and annular work-pieces.
Description
Technical field:
The utility model relates to bearing and annular workpieces induction heating control technology field, and a kind of numeral shows the bearing induction heater.
Background technology:
Annular workpieces such as bearing, gear, pulley are in installation process, and annular workpieces such as the bearing of interference fit are not easy to be fitted on the axle, therefore, will heat before installation, make it expanded by heating.And original method such as traditional installation method adopts flame heat, oil to boil heating and knock.At the bottom of easily causing temperature control, bearing tempering, the efficiency of heating surface, easily cause environmental pollution; The method that other knocks easily causes the raceway groove damage in installation process, vibration is big, noise is big, thereby greatly reduces useful life and precision, has also influenced the assembly precision and the overall performance of equipment simultaneously.
Summary of the invention:
In order to overcome the defective that exists as mentioned above, the purpose of this utility model provides a kind of numeral and shows the bearing induction heater, utilize the power frequency short circuit current that bearing is heated, make that this device is simple to operate, safe and reliable, firing rate is fast, highly versatile, the saving energy, pollution-free, greatly facilitates the assembling of annular workpieces such as bearing with interference fit, gear, pulley.
For achieving the above object, the utility model adopts following technical scheme:
Described numeral shows the bearing induction heater, and the main control circuit to the bearing heating has adopted electron temperature, time control circuit, the Display and Alarm Circuit of temperature, time control; Temperature sensor is adsorbed on the inner ring that is heated bearing, and the 220V power supply is switched on to inductance coil, and inductance coil was connected on normal battle of A.C. contactor J0-1 of main control circuit, and A.C. contactor J0 is connected by auxiliary relay J1 and manual heating K switch 1; Electron temperature, time control circuit, the Display and Alarm Circuit of temperature, time control links by the temperature and time display setting circuit on duplex button N1, N2 and the control panel, and another of N1, N2 button is to the Display and Alarm Circuit of contacting temperature, time control.
Described numeral shows electron temperature, the time control circuit of bearing induction heater, has real time, temperature value display window and temperature, time set value display window, and temperature, time controller are arranged in it, two outputs is respectively arranged: temperature control end H
ALMAnd Hout, meet duplex button N2, N1 respectively, time control end Tout
1Be connected time T out with N2
2Be connected Tout with Hout
1And Tout
2Be communicated with auxiliary relay J1 again, thereby start inductance coil.
Described numeral shows temperature, the time control Display and Alarm Circuit of bearing induction heater, time output Tout
1Hout connected N1 and connected temperature to alarm lamp D4 and buzzer F, H to alarm lamp D3 turn-on time
ALMConnect overtemperature alarm indicator light D5, A.C. contactor J0-2 connects relay indicating light D2, and D1 is a power supply indicator.
Described numeral shows the main control circuit of the heating bearing of bearing induction heater, and by 220V power connection A.C. contactor J0, when auxiliary relay J1-1 and manual heating control switch K1-1 connected simultaneously, the J0-1 closure of often making war was connected inductance coil L.
Described numeral shows the bearing induction heater, and 220V voltage is through A.C. contactor J0, and bridge rectifier VC can eliminate heating bearing residual magnetism automatically through controllable silicon V and auxiliary circuit again.
Owing to adopted as above technical scheme, the utlity model has following superiority:
This numeral shows the bearing induction heater, and it can be according to the set point automatic constant temperature in 0～250 ℃ of scope; But the higher limit of design temperature, during the heating bearing, heater can cut off heating circuit, the indication of can reporting to the police during overtemperature automatically when temperature reaches the higher limit of temperature.Have intelligent even numbers and show adjustable type constant temperature, temperature control and temperature display function, setting-up time and actual value even numbers display mode have been adopted in time control, and be directly perceived accurate, and the operator can understand the inner ring variations in temperature that is heated bearing and the variation of heating time at any time.Be bearing heating during heating, still the temperature remains within the normal range and heater itself reaches yoke.This device is simple to operate, safe and reliable, firing rate is fast, highly versatile, the saving energy, pollution-free, greatly facilitates the assembling of annular workpieces such as bearing with interference fit, gear, pulley.The demagnetization automatically of bearing heating finishing back, the demagnetization quality reaches national mechanical industry industry required standard, has improved operating efficiency and assembly precision.
Description of drawings:
Fig. 1 numeral shows bearing induction heater circuit theory schematic diagram.
Embodiment:
As shown in fig. 1: this numeral shows the bearing induction heater, and it has by electron temperature, time control circuit, the Display and Alarm Circuit of temperature, time control; The logic control circuit of time and temperature.
Power turn-on switch S A, transformer step-down B, the bright D1 of power supply indicator is adsorbed on sensor probe t on the bearing inner race, when pressing temperature control button N1, temperature display device mouth upper strata PV shows actual measured value, the SV of lower floor display setting value is set heating-up temperature, presses a N1 button in temperature controlled processes again, button is upspring, and the temperature state of a control stops.When pressing time button N2, time controller work.On time control display window, upper strata PV shows reality delay time, and the SV of lower floor display setting value is set heating time, meets timing button N2 in the time control procedure again, and button is upspring, and the time state of a control stops, and N1, N2 reset.
Press heater switch K1, in the temperature operation control circuit, when pressing temperature control button N1, connect temperature control system, the normally opened contact closure of Hout, J1 gets electric, the J1-1 closure, J0 gets electric, and the normally opened contact of J0-1 is connected, the main circuit conducting.Electric current flows through coil L, and the iron core yoke produces magnetic field, and bearing is heated.Simultaneously J0-2 connects, and the D2 work light is bright, reaches when temperature value is set when heat sensor probe records bearing temperature, and the normally-closed contact of Hout closes, and D4 " temperature to " lamp is bright, and buzzer warning warns and make temperature to remain on the temperature value of this setting.Continue to rise when certain condition forces bearing temperature, when reaching capacity temperature (maximum temperature value that operator oneself sets), temperature control system can automatic disconnection H
ALMNormally closed point, J1, J0 dead electricity are cut off heating circuit, and connect D5 overtemperature alarm lamp, the D2 work light goes out.
In the time operation control circuit,, connected time controlled system, also connected loop N2 switch when pressing control button N2.J1 gets electric, and J1-1 is logical, and J0 gets.J0-1 normally opened contact closure.The D2 work light is bright, inductance L work, and the iron core yoke produces magnetic field, and bearing is heated.When reaching the preset time value, Tout1, Tout2 disconnect, the J1 dead electricity, and J1-1 disconnects, and the J0-1 normally opened contact disconnects, and cuts off major loop, and heating stops.The normally opened contact closure of Tout1, D3 " time arrives " lamp is bright, and the D2 work light goes out.
Press N1 and N2 button in the dual operation control circuit, connected temperature control system and time-controlled system and logical transition loop, J1 work, J1-1 is logical, J0 gets electric, J0-1 normally opened contact closure, and the D2 work light is bright, inductance L work, the iron core yoke produces magnetic field, and bearing is heated.When temperature arrived preset value, the Hout normally opened contact was disconnected, and normally closed point is logical, and D4 " temperature arrives " lamp is bright.But Hout1 did not reach temperature value is set because of the time, and normally off keeps, J1 still electric, inductance L is still being worked.But when the gauge head measured temperature reached the limiting temperature that presets, temperature control was H
ALMNormally closed point disconnects, and D5 overtemperature alarm lamp is bright simultaneously, J1, J0 dead electricity, and J0-1 often cut-offs out.L quits work, and heating stops, and has guaranteed to be heated the bearing heating-up temperature in control range and do not have tempering.
220V voltage is through A.C. contactor J0, and bridge rectifier VC can eliminate the heated parts residual magnetism automatically through controllable silicon V and auxiliary circuit again.
Claims (5)
1, a kind of numeral shows the bearing induction heater, it is characterized in that: described induction heater, and it has the main control circuit of bearing heating, and main control circuit has adopted electron temperature, time control circuit, the Display and Alarm Circuit of temperature, time control; Temperature sensor is adsorbed on the inner ring that is heated bearing, and the 220V power supply connects inductance coil, and inductance coil was connected on normal battle of A.C. contactor J0-1 of main control circuit, and A.C. contactor J0 is connected by auxiliary relay J1 and manual heating K switch 1; Electron temperature, time control circuit, the Display and Alarm Circuit of temperature, time control links by the temperature and time display setting circuit on duplex button N1, N2 and the control panel, and another of N1, N2 button is to the Display and Alarm Circuit of contacting temperature, time control.
2, numeral according to claim 1 shows the bearing induction heater, it is characterized in that: described induction heater, its electron temperature, time control circuit, have real time, temperature value display window and temperature, time set value display window, temperature, time controller are arranged in it, two outputs are respectively arranged: temperature control end H
ALMAnd Hout, meet duplex button N2, N1 respectively, time control end Tout
1Be connected time T out with N2
2Be connected Tout with Hout
1And Tout
2Be communicated with auxiliary relay J1 again, connect inductance coil.
3, numeral according to claim 1 shows the bearing induction heater, it is characterized in that: described induction heater, its temperature, time control Display and Alarm Circuit, time output Tout
1Be switched to alarm lamp D3, Hout connects N1 and connects temperature to alarm lamp D4 and buzzer F, H
ALMConnect overtemperature alarm indicator light D5, A.C. contactor J0-2 connects relay indicating light D2, D1 power supply indicator.
4, numeral according to claim 1 shows the bearing induction heater, it is characterized in that: described induction heater, the main control circuit of its heating bearing, by 220V power connection A.C. contactor J0, when auxiliary relay J1-1 and manual heating control switch K1-1 connect simultaneously, the J0-1 closure of often making war is connected inductance coil L.
5, numeral according to claim 1 shows the bearing induction heater, it is characterized in that: described induction heater, 220V voltage are through A.C. contactor J0, and bridge rectifier VC eliminates circuit automatically through controllable silicon V and auxiliary circuit connection heating bearing residual magnetism again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075538 CN2762481Y (en) | 2004-12-30 | 2004-12-30 | Digital display bearing induction heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075538 CN2762481Y (en) | 2004-12-30 | 2004-12-30 | Digital display bearing induction heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762481Y true CN2762481Y (en) | 2006-03-01 |
Family
ID=36095596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075538 Expired - Fee Related CN2762481Y (en) | 2004-12-30 | 2004-12-30 | Digital display bearing induction heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762481Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171471A (en) * | 2008-09-30 | 2011-08-31 | Skf公司 | Bearing heater |
| CN104244479A (en) * | 2014-10-10 | 2014-12-24 | 北京金风科创风电设备有限公司 | Flexible induction heating power supply for assembling and disassembling fan bearing and control method thereof |
| CN107635300A (en) * | 2017-10-26 | 2018-01-26 | 国电联合动力技术(保定)有限公司 | A kind of fan bearing electromagnetic induction heater automatic temperature control system |
| CN106493508B (en) * | 2016-10-11 | 2018-06-05 | 中国计量大学 | A kind of handle of a knife hot charging system based on electromagnetic induction |
| CN113478173A (en) * | 2021-07-20 | 2021-10-08 | 中国航发航空科技股份有限公司 | Heating and disassembling device for inner half ring of high-pressure turbine roller bearing of engine and operation method of heating and disassembling device |
-
2004
- 2004-12-30 CN CN 200420075538 patent/CN2762481Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171471A (en) * | 2008-09-30 | 2011-08-31 | Skf公司 | Bearing heater |
| CN104244479A (en) * | 2014-10-10 | 2014-12-24 | 北京金风科创风电设备有限公司 | Flexible induction heating power supply for assembling and disassembling fan bearing and control method thereof |
| CN104244479B (en) * | 2014-10-10 | 2016-05-04 | 北京金风科创风电设备有限公司 | Flexible induction heating power supply for assembling and disassembling fan bearing and control method thereof |
| CN106493508B (en) * | 2016-10-11 | 2018-06-05 | 中国计量大学 | A kind of handle of a knife hot charging system based on electromagnetic induction |
| CN107635300A (en) * | 2017-10-26 | 2018-01-26 | 国电联合动力技术(保定)有限公司 | A kind of fan bearing electromagnetic induction heater automatic temperature control system |
| CN113478173A (en) * | 2021-07-20 | 2021-10-08 | 中国航发航空科技股份有限公司 | Heating and disassembling device for inner half ring of high-pressure turbine roller bearing of engine and operation method of heating and disassembling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20100201 |