CN105132636A - Cooling device special for shaft isothermal normalizing - Google Patents
Cooling device special for shaft isothermal normalizing Download PDFInfo
- Publication number
- CN105132636A CN105132636A CN201510655280.4A CN201510655280A CN105132636A CN 105132636 A CN105132636 A CN 105132636A CN 201510655280 A CN201510655280 A CN 201510655280A CN 105132636 A CN105132636 A CN 105132636A
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- air
- cooling chamber
- cooling
- cooling device
- isothermal normalizing
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Abstract
The invention discloses a cooling device special for shaft isothermal normalizing. The cooling device comprises an air-cooling chamber. A top-air-draft draught fan is arranged on the top of the air-cooling chamber and connected with the air outlet of the air-cooling chamber through an air duct. A bottom-air-supply draught fan is arranged at the bottom of the air-cooling chamber and connected with the air duct through the air inlet of the air-cooling chamber. Workpieces are cooled through an air draft cooling method, the cooling device has the advantages of being high in penetrating power and remarkable in cooling effect, and the product quality passing percent is increased.
Description
Technical field
The present invention relates to shaft forgings processing unit (plant), be specifically related to a kind of shaft forgings isothermal normalizing Special cooling device.
Background technology
What existing shaft forgings isothermal normalizing Special cooling device generally adopted is deliver in air-cooling chamber by workpiece by conveying belt, then directly blows to workpiece the effect reaching cooling with blower fan, and then enters down one manufacturing procedure.This method is in whole process of cooling, and cold wind directly blows on workpiece, causes work-piece cools excessive velocities, affects workpiece mechanical property; Meanwhile, the upper and lower temperature difference of workpiece is comparatively large, makes, through heat treated workpiece hardness scattered error, to have a strong impact on quality product.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, use reliable, realize cooling the controlled shaft forgings isothermal normalizing Special cooling device of slow cooling by exhausting mode from bottom to top.
For achieving the above object, shaft forgings isothermal normalizing Special cooling device of the present invention, comprise air-cooling chamber, the top of described air-cooling chamber is provided with induced draft fans, and upper induced draft fans is connected with the air outlet of air-cooling chamber through air channel.Be provided with lower breeze fan bottom described air-cooling chamber, lower breeze fan is connected with air channel through air-cooling chamber blast inlet.
The inwall of described air-cooling chamber is provided with infrared thermometer.
The outside of described air-cooling chamber is provided with variable-frequence governor.
The suction opening place of described upper induced draft fans is provided with the regulated valve for regulating air quantity.
After adopting technique scheme, the top due to described air-cooling chamber is provided with upper induced draft fans, and upper induced draft fans is connected with the air outlet of air-cooling chamber through air channel.Like this, by the upper induced draft fans installed at the top of air-cooling chamber, by upper induced draft fans, the warm air on workpiece in air-cooling chamber is extracted out.The type of cooling of this employing exhausting, has penetration power strong, and cooling performance is more obvious, thus improves the qualification rate of quality product.
Further, be provided with lower breeze fan bottom described air-cooling chamber, lower breeze fan is connected with air channel through air-cooling chamber blast inlet, increases the air quantity in air-cooling chamber, improves cooling performance.
Further, the inwall of described air-cooling chamber is provided with infrared thermometer, is measured the temperature of workpiece surface, thus realize the control of exhausting amount by infrared thermometer.
Further, the outside of described air-cooling chamber is provided with variable-frequence governor, changes lower breeze fan rotating speed, thus change air output by variable-frequence governor.
Further, the suction opening place of described upper induced draft fans is provided with the regulated valve for regulating air quantity, regulated the exhausting amount of upper induced draft fans by regulated valve, make workpiece surface temperature constant within the scope of technique initialization, after ensureing normalizing, obtain thinner perlite+ferritic structure.
Accompanying drawing explanation
Fig. 1 is shaft forgings isothermal normalizing Special cooling device structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, shaft forgings isothermal normalizing Special cooling device of the present invention is described further;
As seen from Figure 1, a kind of shaft forgings isothermal normalizing of the present invention Special cooling device, comprise air-cooling chamber 1, the top of described air-cooling chamber 1 is provided with induced draft fans 2, bottom is provided with lower breeze fan 3, the air outlet of upper induced draft fans 2 through air channel 4 with air-cooling chamber 1 is connected, and lower breeze fan 3 is connected with air channel 4 through air-cooling chamber 1 blast inlet.
When using of the present invention, by pending workpiece by tape transport in air-cooling chamber 1, enable induced draft fans 2, the warm air of such workpiece surface, by the air outlet of air-cooling chamber 1, is extracted out by upper induced draft fans 2 fast through air channel 4, thus by work-piece cools.This employing exhausting mode cools workpiece, and penetration power is strong, meets mechanical property, effectively improves the qualification rate of product.
In the present embodiment, in order to increase the air quantity of air-cooling chamber 1 li, arrange lower breeze fan 4 in the bottom of air-cooling chamber 1, lower breeze fan 4 is connected with air channel 3 through air-cooling chamber 1 blast inlet, thus increases the air quantity of air-cooling chamber 1 li; Between air channel 3, being provided with the regulated valve 7 for regulating air quantity, being used for regulating air-cooling chamber 1 li of exhausting amount, thus regulating the blending ratio of cold wind and hot blast, to meet workpiece type and the processing requirement of required cooling; In order to ensure speed of cooling and the temperature of workpiece, at air-cooling chamber 1 inwall, infrared thermometer 5 is set, the outside of air-cooling chamber 1 is provided with variable-frequence governor 6, the temperature of workpiece surface is measured by infrared thermometer 5, and will control device be outputed signal to, control device changes upper induced draft fans 2 rotating speed according to the parameter of setting by variable-frequence governor 6, and exhausting amount is changed, make workpiece surface temperature constant within the scope of technique initialization, after ensureing normalizing, obtain thinner perlite+ferritic structure; Air-cooling chamber 1 shell shaped steel and Plate Welding form, between inside and outside shell, be filled with heat-insulating heat-preserving material, effectively improve the air-cooling chamber temperature difference.
The present invention, by upper induced draft fans 2 exhausting cooling workpiece, sets up the air quantity that lower breeze fan 4 increases air-cooling chamber 1 li simultaneously, realizes workpiece slow cooling, optimize workpiece metallographic structure, ensure that the quality product after normalizing.Workpiece main technical details after process of the present invention: hardness scattered error single-piece≤15HB, with criticizing≤20HB; Metallographic structure≤3 grade, loose≤3 grades, banded structure≤3 grade, grain fineness number 6-8 level, high quality requirement without Wei Shi body tissue etc.Be convenient to follow-up gear hobbing, gear rolling processing, easily ensure the profile of tooth of gear, spline, teeth directional, at utmost improve the quality of products.
Claims (4)
1. a shaft forgings isothermal normalizing Special cooling device, comprises air-cooling chamber (1), it is characterized in that: the top of described air-cooling chamber (1) is provided with induced draft fans (2), and the air outlet of upper induced draft fans (2) through air channel (3) with air-cooling chamber (1) is connected; Described air-cooling chamber (1) bottom is provided with lower breeze fan (4), and lower breeze fan (4) is connected with air channel (3) through air-cooling chamber (1) blast inlet.
2. shaft forgings isothermal normalizing Special cooling device according to claim 1, is characterized in that: the inwall of described air-cooling chamber (1) is provided with infrared thermometer (5).
3. shaft forgings isothermal normalizing Special cooling device according to claim 2, is characterized in that: the outside of described air-cooling chamber (1) is provided with variable-frequence governor (6).
4. shaft forgings isothermal normalizing Special cooling device according to claim 3, is characterized in that: be provided with the regulated valve (7) for regulating air quantity between described upper induced draft fans (2) and air channel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655280.4A CN105132636A (en) | 2015-10-12 | 2015-10-12 | Cooling device special for shaft isothermal normalizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655280.4A CN105132636A (en) | 2015-10-12 | 2015-10-12 | Cooling device special for shaft isothermal normalizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105132636A true CN105132636A (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510655280.4A Pending CN105132636A (en) | 2015-10-12 | 2015-10-12 | Cooling device special for shaft isothermal normalizing |
Country Status (1)
| Country | Link |
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| CN (1) | CN105132636A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816906A (en) * | 2011-06-07 | 2012-12-12 | 宁波保税区天扬机械电子科技有限公司 | Steel product cooling and residual heat recovering apparatus |
| CN103627860A (en) * | 2013-11-29 | 2014-03-12 | 安庆市振发汽车锻件有限责任公司 | Cooling device of isothermal normalizing furnace |
| CN204417553U (en) * | 2014-12-20 | 2015-06-24 | 贵州惠沣众一机械制造有限公司 | Slender piece refrigerating unit |
-
2015
- 2015-10-12 CN CN201510655280.4A patent/CN105132636A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816906A (en) * | 2011-06-07 | 2012-12-12 | 宁波保税区天扬机械电子科技有限公司 | Steel product cooling and residual heat recovering apparatus |
| CN103627860A (en) * | 2013-11-29 | 2014-03-12 | 安庆市振发汽车锻件有限责任公司 | Cooling device of isothermal normalizing furnace |
| CN204417553U (en) * | 2014-12-20 | 2015-06-24 | 贵州惠沣众一机械制造有限公司 | Slender piece refrigerating unit |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |
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| WD01 | Invention patent application deemed withdrawn after publication |