CN202254796U - Oil bath furnace - Google Patents
Oil bath furnace Download PDFInfo
- Publication number
- CN202254796U CN202254796U CN2011202909472U CN201120290947U CN202254796U CN 202254796 U CN202254796 U CN 202254796U CN 2011202909472 U CN2011202909472 U CN 2011202909472U CN 201120290947 U CN201120290947 U CN 201120290947U CN 202254796 U CN202254796 U CN 202254796U
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- Prior art keywords
- oil bath
- jar
- bathing
- heating wire
- bath furnace
- Prior art date
- 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 discloses an oil bath furnace which comprises a bath tank, wherein a liquid oil bath is accommodated into the bath tank. The oil bath furnace further comprises an insulator, an electric heating wire and a steel plate strip, wherein the insulator is fixedly arranged at the bottom of a cavity body of the bath tank; the electric heating wire is wound on the outer surface of the insulator and is directly soaked into the oil bath; and the steel plate strip is fixedly arranged above the insulator and the electric heating wire for placing workpieces. Due to the oil bath furnace, good heating effect and good safety are achieved, and the cost is reduced.
Description
Technical field
The utility model relates to field of machining, particularly a kind of oil bath furnace.
Background technology
The oil bath furnace of usefulness such as existing lonneal is as shown in Figure 2, and workpiece 130 places the bottom in the cavity of bathing jar 150, and heating wire 60 is arranged in bathes jar 150 outsides.Heating wire 60 is being bathed around jar 150 outsides, from bottom to top, and with refractory brick 140 support arrangement.The heat temperature raising of this external-heat, because heating wire 60 is positioned at the outside of bathing jar 150, so the efficiency of heating surface of oil bath 40 in heating process is low, and forms grease 160 easily at the inwall of bathing jar 150.Grease 160 almost is being a kind of heat-insulating material below 250 ℃, in case grease 160 forms, the thickness of grease 160 increases very fast, causes the whole heat transfer of oil bath furnace slower, make the required time of oil bath 40 intensifications longer.In order to realize necessary heat-transfer effect, need heating wire 60 and refractory brick 140 to have higher temperature, so, preventing to catch fire has just had certainty.In order to reach the fireproof purpose, prior art is respectively inserted a thermocouple 100 inside and outside can only being employed in and bathing jar 150, carries out two even temperature controls, and cost is higher.
In the oil bath furnace of this structure, be a pair of balanced contradiction body that is difficult between control oil bath 40 temperature and the assurance oil bath 40 intensification effects.In order to guarantee the programming rate of oil bath 40, just need to improve the temperature of heating wire 60 and refractory brick 140; When oil bath 40 reaches preset temperature, the tripping operation though instrument is cut off the power supply automatically, the temperature of heating wire 60 and refractory brick 140 is also continuing, and the high temperature of therefore bathing jar 150 outsides also can make oil bath 40 continue to heat up.Like this, just very easily causing oil bath 40 to run temperature catches fire.And catch fire in order not make oil bath 40 run temperature, can only reduce bathing jar 150 outer temperature as far as possible, the result be exactly oil bath furnace firing rate very slowly, work efficiency is very low, and has guaranteed not the quality of heated workpiece.
In the oil bath furnace of this structure, because heating wire 60 arranges that from bottom to top in heating process, cold oil sinks, the deep fat come-up, temperature is not also arrived in the oil bath 40 of bottom, and the oil bath 40 on top is overtemperature.If so desire to make bottom oil bath 40 to be heated to temperature, top oil bath 40 will be run temperature and caught fire, do not run temperature if guarantee top oil bath 40, then bottom oil bath 40 is difficult to temperature.This temperature inequality will cause the quality of workpiece heating uneven.
In addition, in operating process, can in oil bath 40, bring impurity such as moisture content inevitably into.It is excessive in temperature-rise period, can oil bath 40 foams to take place, and in a single day this foam contacts high-temperature electric heat silk 60, immerses in the brickwork joint of refractory brick 140, very easily causes big fire.And highiy refractory brick 140 is behind immersion oil, in case on fire, be difficult to put out a fire to save life and property.Bathe jar 150 outer flare and must cause the big fire of bathing oil bath 40 in the jar 150, fire just is difficult to avoid.
Because there are above-mentioned many defectives in existing oil bath furnace, oil bath furnace dare not courageously be used already in the production scene, but replaces with air furnace.But the thermal capacity of air is little, and thermal conductivity factor is low again, and it is very slow to cause workpiece to heat up.More serious problem is, because the structural defective of existing air furnace stirs even in retort, hot-air is carried out convection current, everywhere gas flow rate is not that temperature natural also just can't all have been colluded, and has had a strong impact on the heating quality of workpiece uniformly in jar.This problem is particularly outstanding below 250 ℃ the time, even insulation for a long time, workpiece can basic samming, can not guarantee the uniformity of workpiece performance.So in fact, the air furnace lonneal that adopt present most of production scene is to sacrifice workpiece quality, to reduce work efficiency, to increase power consumption as cost, to exchange the generation of avoiding fire for.
To sum up, oil bath furnace being made further improvement, is a kind of effective way that comprehensively addresses the above problem.
The utility model content
To the correlation technique problem of prior art, the purpose of the utility model is to provide a kind of oil bath furnace, to improve oil bath furnace heats difference of the prior art and unsafe problem.
For realizing above-mentioned purpose, the utility model provides a kind of oil bath furnace, comprises bathing jar, bathes and holds liquid oil bath in the jar, and wherein, oil bath furnace also comprises:
Insulator is fixedly mounted on the bottom of bathing jar cavity;
Heating wire is wrapped on the outer surface of insulator, and directly is immersed in the oil bath; And
The steel plate bar, the top that is fixedly mounted on insulator and heating wire is used for place work piece.
Preferably, insulator comprises round steel and high temperature insulation sleeve pipe, and wherein, the high temperature insulation casing pipe sleeve is located at the outside of round steel, and heating wire is wrapped on the outer surface of high temperature insulation sleeve pipe.
Preferably, the power line of heating wire extends to more than the liquid level of oil bath face, and leads to the outside of bathing jar from the top open part of bathing jar.
Preferably, the joint of heating wire and power line is arranged on the bottom of oil bath.
Preferably, oil bath furnace also comprises the thermocouple of control bath jar temperature, and wherein, thermocouple extends along the sidewall direction of bathing jar, and the head of thermocouple is near the bottom of bath jar.
Preferably, the outer wall of bath jar is laid with heat-insulation layer.
Preferably, the bell of oil bath furnace is a loose-leaf structure, wherein, bell 1 with bathe jars 9 and be connected with each other through rotating shaft.
Than prior art, the beneficial effect of the utility model is:
(1) heats is good.The utility model is when the energising heating, because heating wire contacts with the oil bath nude, heat conduction link is greatly simplified, and the thermal efficiency almost reaches 100%; Heating wire is again to be uniformly distributed with in oil bath bottom in addition, the deep fat come-up, cold oil sinks, the temperature of oil bath from down and on, from outer to inner, all be automatically uniformly.Therefore, compared with prior art, the oil bath furnace of the utility model has better heats.And the radiating condition of heating wire is good, and its surface loading can design very greatly; Powerful heating wire volume is significantly reduced, thereby can realize high-power heating, can bathe under the end horizontal arrangement again; The assurance programming rate is fast, and work efficiency is high, and tempering quality is good.
(2) security is good.The oil bath furnace heating of the utility model is under the condition of secluding air, to carry out, and oil bath can not burnt; The radiating condition of heating wire is good, and heating temp is not very high; And, owing to cancelled the outer high temperature burning things which may cause a fire disaster of stove,, can not cause fire even to bring the oil bath foam that causes in the oil bath into excessive because of impurity such as moisture content yet.
(3) reduce cost.The utility model oil bath furnace only needs a thermocouple to get final product, and has therefore reduced production cost and use cost.
Description of drawings
Fig. 1 is the structural representation of the utility model oil bath furnace;
Fig. 2 is the structural representation of prior art oil bath furnace.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is described.
With reference to figure 1, the utility model provides a kind of oil bath furnace, and this oil bath furnace comprises bathes jar 9.Outer wall bathing jar 9 is laid with heat-insulation layer 3, in the cavity of bathing jar 9, accommodates liquid oil bath 4.In the bottom of bathing jar 9 cavitys, fixed installation insulator 8.According to the embodiment of the utility model, insulator 8 comprises round steel and high temperature insulation sleeve pipe, and the high temperature insulation casing pipe sleeve is located at the outside of round steel.
Oil bath furnace also comprises the heating wire 6 on the outer surface that is wrapped in insulator 8, and according to the embodiment of the utility model, heating wire 6 is wrapped on the outer surface of high temperature insulation sleeve pipe.Heating wire 6 directly is immersed in the oil bath 4.The power line 2 of heating wire 6 is unsettled to be extended to more than the liquid level of oil bath face 11, and leads to and bathe jars 9 outside from bathing jars 9 top open part.The joint 5 of heating wire 6 and power line 2 is arranged on the bottom of oil bath 4.Power line 6 leads to ends of bathing jar 9 outsides and is connected with power supply.
Above insulator 8 and heating wire 6, fixed installation is useful on the steel plate bar 7 of place work piece 13.Steel plate bar 7 unsettled covering insulators 8 and heating wire 6 need the workpiece 13 of lonneal to place on the steel plate bar 7.
Because heating wire contacts with the oil bath nude, heat conduction link is greatly simplified, and the thermal efficiency almost reaches 100%; Heating wire is again to be uniformly distributed with in oil bath bottom in addition, the deep fat come-up, cold oil sinks, the temperature of oil bath from down and on, from outer to inner, all be automatically uniformly.Therefore, compared with prior art, the oil bath furnace of the utility model has better heats.
Continuation is with reference to figure 1, and the utility model oil bath furnace also comprises the thermocouple 10 of control bath jar 9 temperature.Thermocouple 10 extends along the sidewall direction of bathing jar 9, and the head of thermocouple 10 is near the bottom of bathing jar 9.
In addition, the bell 1 of the utility model oil bath furnace is a loose-leaf structure, this bell 1 with bathe jars 9 and be connected through rotating shaft 12.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. an oil bath furnace comprises and bathes jar (9), and said the bath held liquid oil bath (4) in jar (9), it is characterized in that said oil bath furnace also comprises:
Insulator (8) is fixedly mounted on said bottom of bathing jar (9) cavity;
Heating wire (6) is wrapped on the outer surface of said insulator (8), and directly is immersed in the said oil bath (4); And
Steel plate bar (7), the top that is fixedly mounted on said insulator (8) and heating wire (6) is used for place work piece (13).
2. oil bath furnace according to claim 1 is characterized in that, said insulator (8) comprises round steel and high temperature insulation sleeve pipe,
Wherein, said high temperature insulation casing pipe sleeve is located at the outside of said round steel, and said heating wire (6) is wrapped on the outer surface of said high temperature insulation sleeve pipe.
3. oil bath furnace according to claim 1 and 2 is characterized in that, the power line (2) of said heating wire (6) extends to more than the liquid level of oil bath face (11), and leads to said outside of bathing jar (9) from said top open part of bathing jar (9).
4. oil bath furnace according to claim 3 is characterized in that, the joint (5) of said heating wire (6) and said power line (2) is arranged on the bottom of said oil bath (4).
5. oil bath furnace according to claim 4 is characterized in that, said oil bath furnace also comprises the said thermocouple (10) of bathing jar (9) temperature of control,
Wherein, said thermocouple (10) extends along said sidewall direction of bathing jar (9), and the head of said thermocouple (10) is near said bottom of bathing jar (9).
6. according to claim 4 or 5 described oil bath furnaces, it is characterized in that said outer wall of bathing jar (9) is laid with heat-insulation layer (3).
7. oil bath furnace according to claim 6 is characterized in that, the bell of said oil bath furnace (1) is a loose-leaf structure;
Wherein, said bell (1) is connected with each other through rotating shaft with said bath jar (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202909472U CN202254796U (en) | 2011-08-11 | 2011-08-11 | Oil bath furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202909472U CN202254796U (en) | 2011-08-11 | 2011-08-11 | Oil bath furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202254796U true CN202254796U (en) | 2012-05-30 |
Family
ID=46116026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202909472U Expired - Fee Related CN202254796U (en) | 2011-08-11 | 2011-08-11 | Oil bath furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202254796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007251A (en) * | 2014-05-04 | 2014-08-27 | 广西柳工高级润滑油有限公司 | Hydraulic oil stability determinator |
-
2011
- 2011-08-11 CN CN2011202909472U patent/CN202254796U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007251A (en) * | 2014-05-04 | 2014-08-27 | 广西柳工高级润滑油有限公司 | Hydraulic oil stability determinator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |