CN210237684U - Workpiece rapid cooling device under protective atmosphere - Google Patents
Workpiece rapid cooling device under protective atmosphere Download PDFInfo
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- CN210237684U CN210237684U CN201920790821.8U CN201920790821U CN210237684U CN 210237684 U CN210237684 U CN 210237684U CN 201920790821 U CN201920790821 U CN 201920790821U CN 210237684 U CN210237684 U CN 210237684U
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Abstract
The utility model discloses a rapid cooling device for workpieces under protective atmosphere, wherein a cooling circulation cavity is formed in a heat insulation shell of the rapid cooling device, a cooling cavity fan is arranged in the heat insulation shell, and an inlet door and an outlet door are arranged on two opposite sides of the heat insulation shell; a workpiece cooling table is arranged in the cooling circulation chamber, and two ends of the workpiece cooling table are respectively positioned at the material inlet door and the material outlet door; the heat preservation shell is provided with a protective gas supply device and is communicated with the cooling circulation chamber; a gas cooling circulation channel is formed in the heat-insulating shell, a gas cooling device is arranged in the gas cooling circulation channel, and two ends of the gas cooling circulation channel are communicated with the cooling circulation chamber so as to cool part of circulating cooling gas in the cooling circulation chamber; the utility model discloses a quick cooling device of work piece can realize carrying out cooling treatment to the work piece after the heat treatment fast under the cooling environment of protective atmosphere, does not produce the cinder after making the work piece cooling, both can practice thrift the processing cost of work piece, can improve work piece heat treatment efficiency again, still can ensure the heat treatment quality of work piece.
Description
Technical Field
The utility model belongs to the technical field of the work piece thermal treatment and specifically relates to a quick cooling device of work piece under protective atmosphere is related to.
Background
At present, most of normalizing heat treatment processes used in the manufacturing industry of mechanical parts in China, particularly the automobile industry, are used for the preliminary heat treatment of workpieces, and few of the isothermal normalizing processes are usually used for the isothermal normalizing treatment of workpiece blanks. Therefore, in the existing workpiece heat treatment process, enough cutting allowance must be left for the workpiece so as to facilitate the cutting treatment of the subsequent process, thereby not only increasing the cost of workpiece processing, but also reducing the efficiency of workpiece heat treatment, and the quality of the produced workpiece is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the technical scheme is to provide a rapid cooling device for workpieces under protective atmosphere, which can rapidly finish cooling the workpieces after heat treatment in the cooling device filled with the protective atmosphere without generating oxide skin, thereby saving the processing cost of the workpieces, improving the heat treatment efficiency of the workpieces, ensuring the heat treatment quality of the workpieces and being very suitable for batch production of the workpieces.
In order to solve the above technical problem, the present technical solution provides a rapid cooling device for a workpiece under a protective atmosphere, which includes: the cooling device comprises a heat-insulating shell, a cooling circulation chamber, a cooling chamber fan, a feeding door, a discharging door, a workpiece cooling table, a protective gas supply device and a gas cooling circulation channel; wherein, the cooling circulation chamber is formed in the heat-insulating shell; the cooling chamber fan is arranged in the cooling circulation chamber; the feeding door and the discharging door are arranged on two opposite sides of the heat-insulating shell and are communicated with the cooling circulation chamber; the workpiece cooling table is arranged in the cooling circulation chamber, and two ends of the workpiece cooling table are respectively positioned at the feed door and the discharge door; the protective gas supply device is arranged on the heat preservation shell, is communicated with the cooling circulation chamber and is used for supplying protective gas to the cooling circulation chamber; the gas cooling circulation channel is formed in the heat preservation shell and is internally provided with a gas cooling device, and two ends of the gas cooling circulation channel are communicated with the cooling circulation cavity and used for cooling part of circulating cooling gas in the cooling circulation cavity.
In another embodiment of the present invention, the cooling circulation chamber forms a circulation cooling gas loop channel, the cross section of the circulation cooling gas loop channel perpendicular to the direction from the feeding door to the discharging door is in a shape of a Chinese character hui, the workpiece cooling table and the cooling chamber fan are arranged on the path of the circulation cooling gas loop channel at intervals, and the circulation cooling gas circulates in the circulation cooling gas loop channel by the operation of the cooling chamber fan, so as to cool the workpiece placed on the workpiece cooling table.
As another implementation of the present solution, the gas cooling device includes: the gas cooling fan and the tube array type water cooling device are arranged on a path of the gas cooling circulation channel at intervals, the water supply and drainage pipeline is arranged on the heat preservation shell and communicated with the tube array type water cooling device, part of circulating cooling gas in the circulating cooling gas loop channel is pumped into the gas cooling circulation channel through the operation of the gas cooling fan, and the circulating cooling gas is discharged back into the circulating cooling gas loop channel after being cooled by the tube array type water cooling device. Therefore, partial circulating cooling gas in the circulating cooling gas loop channel can be quickly cooled, so that the cooling time of the workpiece is shortened, the cooling efficiency of the workpiece after heat treatment is improved, and the heat treatment quality of the workpiece is improved.
As another implementation of this aspect, the gas cooling apparatus further includes: and the cooling water bypass pipeline is communicated with a water supply pipeline in the water supply and drainage pipeline. Therefore, a small amount of cooling water is always in a common state, so that the cooling water in the water supply pipeline is prevented from being gasified at high temperature, and the water supply and drainage pipeline is prevented from being damaged.
As another implementation of the present technical solution, two ends of the gas cooling circulation channel are divided into an air inlet end and an air outlet end, the air inlet end is located at the adjacent workpiece cooling platform and is communicated with the circulation cooling gas loop channel, and the air outlet end is located at the air outlet of the adjacent cooling chamber fan and is communicated with the circulation cooling gas loop channel. Therefore, the cooling of the workpiece placed on the workpiece cooling table by the cooled circulating cooling gas is facilitated, and the cooling efficiency of the heat-treated workpiece is improved.
As another implementation of the technical solution, an air inlet valve is disposed at an air inlet end of the gas cooling circulation channel, an air outlet valve is disposed at an air outlet end of the gas cooling circulation channel, and the flow rate of the cooling circulation gas entering the gas cooling circulation channel can be adjusted by adjusting the opening and closing degree of the air inlet valve and/or the air outlet valve. Therefore, the cooling temperature and the cooling time can be flexibly adjusted according to the cooling treatment requirements of different types of workpieces after heat treatment, so that the cooling speed of the workpieces can be controlled.
As another implementation of the present technical solution, the apparatus for rapidly cooling a workpiece under a protective atmosphere further includes: and the at least two temperature control devices are respectively arranged on two sides of the workpiece cooling table positioned on the channel path of the circulating cooling gas loop. Through the statistics and calculation of the temperature difference value around the workpiece after the heat treatment, decision data can be provided for controlling the flow of the circulating cooling gas.
As another implementation of the present technical solution, the apparatus for rapidly cooling a workpiece under a protective atmosphere further includes: and the heating device is arranged in the cooling circulation chamber. Therefore, the temperature in the cooling circulation chamber is not lower than the cooling process temperature according to the cooling treatment requirements of different types of workpieces after heat treatment.
As another implementation of the present technical solution, the apparatus for rapidly cooling a workpiece under a protective atmosphere further includes: and the workpiece temperature monitor is arranged on the heat-insulating shell and is adjacent to the workpiece cooling table. The workpiece temperature monitor is used for monitoring the actual temperature of the workpiece in the cooling circulation chamber so as to facilitate the control of an operator on the cooling process of the workpiece after heat treatment.
As another implementation of the present technical solution, the apparatus for rapidly cooling a workpiece under a protective atmosphere further includes: the furnace pressure monitoring device and the waste gas discharging device are arranged on the heat preservation shell and are communicated with the cooling circulation chamber. The furnace pressure monitoring device can ensure that the pressure of the protective atmosphere in the cooling circulation cavity is not lower than a set value, the waste gas in the cooling circulation cavity can be timely discharged by the waste gas discharging device, and the furnace pressure monitoring device can be matched to adjust the pressure of the protective atmosphere in the cooling circulation cavity, so that the heat treatment quality of workpieces is ensured.
The technical scheme is that the workpiece after heat treatment is rapidly cooled in the cooling environment of protective atmosphere, and oxide skin is not generated after the workpiece is cooled, so that compared with the conventional workpiece cooling device, the technical scheme has the beneficial effects of saving the processing cost of the workpiece, improving the heat treatment efficiency of the workpiece and ensuring the heat treatment quality of the workpiece.
Drawings
Fig. 1 is a side sectional view of the workpiece rapid cooling device under the protective atmosphere according to an angle of the present invention.
Fig. 2 is a side sectional view of another angle of the rapid workpiece cooling device under the protective atmosphere of the present invention.
Symbolic illustration in the drawings:
1, a heat preservation shell; 2 cooling the circulating chamber; 20 recirculating cooling gas circuit passages; 21 cooling the chamber fan; 22 a drive motor; 23 workpiece cooling table; 3, a feeding door; 4, a discharge door; 5 protective gas supply device; 6 gas cooling circulation channel; 60 gas cooling fans; 61 tubular water cooling devices; 62 water supply and drainage pipeline; 63 driving a motor; 64 cooling water bypass line; 65 air inlet valve; 651 intake valve driving motor; 66 an air outlet valve; 661 air outlet valve driving motor; 7, a temperature control device; 8, a heating device; 9 workpiece temperature monitor; 10 furnace pressure monitoring devices; 11 an exhaust gas discharge device; 12 workpiece.
Detailed Description
The following detailed description and technical contents of the present invention are described with reference to the drawings, but the drawings are only for reference and illustration and are not intended to limit the present invention.
The utility model provides a quick cooling device of work piece under protective atmosphere, it mainly is applied to the cooling treatment to the work piece after various isothermal normalizing thermal treatment, is particularly suitable for the quick cooling treatment to gear, pinion class work piece after isothermal normalizing thermal treatment.
As shown in fig. 1 and 2, for the side cross-sectional views of two azimuth angles of a specific embodiment of the present invention, the present invention is shown in the present invention, a rapid cooling device for a workpiece under a protective atmosphere, includes: the device comprises a heat preservation shell 1, a cooling circulation chamber 2, a cooling chamber fan 21, a feeding door 3, a discharging door 4, a workpiece cooling table 23, a protective gas supply device 5 and a gas cooling circulation channel 6; wherein, the cooling circulation chamber 2 is formed in the heat-insulating shell 1; a cooling chamber fan 21 is arranged in the cooling circulation chamber 2, the cooling chamber fan 21 is driven by a driving motor 22 arranged outside the heat preservation shell to run, and the driving motor 22 is a variable frequency motor in the embodiment; the feeding door 3 and the discharging door 4 are arranged on two opposite sides of the heat-insulating shell 1 and are communicated with the cooling circulation chamber 2; the workpiece cooling table 23 is arranged in the cooling circulation chamber 2, and two ends of the workpiece cooling table are respectively positioned at the feed door 3 and the discharge door 4, and guide transmission components such as a stick, a track and the like can be arranged on the workpiece cooling table 23 so as to be beneficial to the pushing-in placing or taking-out operation of the workpiece to be cooled; the protective gas supply device 5 is arranged on the heat preservation shell 1 and is communicated with the cooling circulation chamber 2, the protective gas supply device 5 is used for supplying protective gas to the cooling circulation chamber 2, and the protective gas can be inert gas such as nitrogen; the gas cooling circulation channel 6 is formed in the heat preservation shell 1 and is internally provided with a gas cooling device, and two ends of the gas cooling circulation channel 6 are communicated with the cooling circulation chamber 2 so as to be used for cooling part of circulating cooling gas in the cooling circulation chamber 2. More specifically, the cooling circulation chamber 2 forms a circulation cooling gas loop channel 20, the cross section of the circulation cooling gas loop channel 20 perpendicular to the direction from the feeding door 3 to the discharging door 4 is in a shape of "hui", a workpiece cooling table 23 and a cooling chamber fan 21 are arranged on the path of the circulation cooling gas loop channel 20 at intervals, the workpiece cooling table 23 may be a frame body or a plate body, in this embodiment, the workpiece cooling table adopts a frame body to facilitate the circulation cooling gas in the circulation cooling gas loop channel 20 to pass through; the cooling chamber fan 21 is driven by a drive motor 22 provided outside the heat-insulating housing 1 to operate, thereby circulating the circulating cooling gas in the circulating cooling gas circuit passage 20 to cool the workpiece 12 placed on the workpiece cooling table 23.
In the embodiment of the present invention, the gas cooling device is composed of a gas cooling fan 60, a tubular water cooling device 61 and a water supply and drainage pipeline 62, wherein the gas cooling fan 60 and the tubular water cooling device 61 are disposed on the path of the gas cooling circulation channel 6 at intervals, and the water supply and drainage pipeline 62 is installed on the heat preservation shell 1 and is communicated with the tubular water cooling device 61. The gas cooling fan 60 is driven and operated by a drive motor 63 provided outside the heat insulating case 1, and in the present embodiment, the drive motor 63 is an inverter motor. The driving motor 63 drives the gas cooling fan 60 to operate, so that part of the circulating cooling gas in the circulating cooling gas loop channel 20 is pumped into the gas cooling circulating channel 6, is cooled by the tubular water cooling device 61 and then is discharged back into the circulating cooling gas loop channel 20, and therefore, part of the circulating cooling gas in the circulating cooling gas loop channel 20 can be rapidly cooled, the cooling time of the workpiece is shortened, the cooling efficiency of the heat-treated workpiece is improved, and the heat treatment quality of the workpiece is improved. In addition, in order to ensure that the cooling water in the water supply pipeline is not gasified at high temperature, and further to prevent the water supply and drainage pipeline 62 from being damaged, the gas cooling device further comprises a cooling water bypass pipeline 64, and the cooling water bypass pipeline 64 is communicated with the water supply pipeline in the water supply and drainage pipeline 62, so that a small amount of cooling water is always communicated with the water supply pipeline.
In order to facilitate the cooling of the workpiece 12 placed on the workpiece cooling table 23 by the cooled circulating cooling gas, and further improve the cooling efficiency of the workpiece 12 after heat treatment, two ends of the gas cooling circulating channel 6 can be divided into an air inlet end and an air outlet end, the air inlet end is located at the adjacent workpiece cooling table 23 and is communicated with the circulating cooling gas loop channel 20, the air outlet end is located at the air outlet of the adjacent cooling chamber fan 21 and is communicated with the circulating cooling gas loop channel 20, under the operation of the gas cooling fan 21, part of the circulating cooling gas in the circulating cooling gas loop channel 20 is pumped into the gas cooling circulating channel 6 from the air outlet end, and is cooled by the tubular water cooling device 61 and then is discharged back to the circulating cooling gas loop channel 20 from the air inlet end. The air inlet end of the gas cooling circulation channel 6 can be further provided with an air inlet valve 65, the air outlet end of the gas cooling circulation channel 6 can be further provided with an air outlet valve 66, and the flow of the circulating cooling gas entering the gas cooling circulation channel 6 can be adjusted by adjusting the opening and closing degree of the air inlet valve 65 and/or the air outlet valve 66 through air inlet and air outlet valve driving motors 651 and 661 arranged outside the heat preservation shell 1, so that the cooling temperature and the cooling time can be flexibly adjusted according to the cooling treatment requirements of different types of workpieces subjected to heat treatment.
In order to provide decision data for controlling the flow or temperature of the circulating cooling gas, the utility model discloses a quick workpiece cooling device under protective atmosphere still includes two at least temperature control devices 7, these two at least temperature control devices 7 set up respectively in the both sides of the workpiece cooling platform 23 that is located on the circulating cooling gas loop passage 20 route, through statistics and calculation to the temperature difference around the workpiece 12 after the heat treatment, in order to provide the data foundation of the flow or temperature of the circulating cooling gas in the control circulating cooling gas loop passage 20 of operating personnel, operating personnel can be according to the temperature difference around the workpiece 12 waiting to cool off the operation of the manual control cooling chamber fan 21 and/or the operation of the gas cooling fan 60 and/or the degree of opening and closing of air inlet and outlet valves 65, 66; it is understood that the automatic control of the fan and/or the valve may also be implemented by configuring a processor unit (not shown), such as a programmable logic controller, etc., and the operation process of controlling the fan and/or the valve according to the temperature difference sensed by the temperature control device is not described herein again, since the operation state of the operating component is controlled according to the environmental value detected by the sensor in the prior art, which is a widely and generally applied control method for the programmable logic controller, i.e., an existing control technique.
Furthermore, the utility model discloses a quick cooling device of work piece under protective atmosphere still can include heating device 8, and this heating device 8 sets up in cooling cycle cavity 2 to make quick cooling device of work piece can be based on the cooling treatment needs of the different kind work piece 12 after the thermal treatment and ensure that the temperature in cooling cycle cavity 2 is not less than cooling process temperature.
Additionally, the utility model discloses a quick cooling device of work piece under protective atmosphere still can include workpiece temperature monitor 9, and this workpiece temperature monitor 9 sets up on heat preservation casing 1 and adjacent to workpiece cooling platform 23, and this workpiece temperature monitor 9 is used for monitoring the actual temperature by cooling workpiece 12 in the cooling cycle cavity 2 to operating personnel carries out whole control to the cooling process of thermal treatment back work piece.
The utility model discloses a quick cooling device of work piece under protective atmosphere still can include stove pressure monitoring device 10 and exhaust emission device 11, and this stove pressure monitoring device 10 and exhaust emission device 11 all set up on heat preservation casing 1 and communicate with each other with cooling cycle cavity 2. The furnace pressure monitoring device 10 can ensure that the protective atmosphere pressure in the cooling circulation chamber 2 is not lower than a set value, the waste gas discharging device 11 can discharge the waste gas in the cooling circulation chamber 2 in time and can be matched with the furnace pressure monitoring device 10 to adjust the protective atmosphere pressure in the cooling circulation chamber 2, and therefore the operation safety of the workpiece rapid cooling device and the heat treatment quality of the workpiece are ensured.
To sum up, the utility model discloses quick cooling device of work piece under the protective atmosphere provides the cooling environment under the protective atmosphere, and does not produce the cinder phenomenon after making the work piece cooling, and gas cooling circulation channel's structure still can accelerate the cooling treatment process to the work piece moreover, consequently, the utility model discloses compare in current work piece cooling device have the processing cost that both can practice thrift the work piece, can improve the heat treatment efficiency of work piece again, still can ensure the beneficial effect of the heat treatment quality of work piece.
It only does to go up the preferred embodiment of the utility model discloses a not be used for injecing the utility model discloses a patent range, other applications the utility model discloses an equivalent change that the patent idea was done all should belong to the patent protection scope of the utility model.
Claims (10)
1. A rapid cooling device for workpieces under a protective atmosphere, comprising: the cooling device comprises a heat insulation shell, a cooling circulation chamber, a cooling chamber fan, a feeding door, a discharging door and a workpiece cooling table; the cooling circulation chamber is formed in the heat-insulating shell; the cooling chamber fan is arranged in the cooling circulation chamber; the feeding door and the discharging door are arranged on two opposite sides of the heat-insulating shell and are communicated with the cooling circulation chamber; the workpiece cooling table is arranged in the cooling circulation chamber, and two ends of the workpiece cooling table are respectively positioned at the feed door and the discharge door; it is characterized by also comprising: a protective gas supply device and a gas cooling circulation channel; the protective gas supply device is arranged on the heat-insulating shell, is communicated with the cooling circulation chamber and is used for supplying protective gas to the cooling circulation chamber; the gas cooling circulation channel is also formed in the heat preservation shell and is provided with a gas cooling device in the gas cooling circulation channel, and the two ends of the gas cooling circulation channel are communicated with the cooling circulation cavity and used for cooling partial circulating cooling gas in the cooling circulation cavity.
2. The rapid workpiece cooling device under protective atmosphere as claimed in claim 1, wherein the cooling circulation chamber forms a circulation cooling gas loop channel, the cross section of the circulation cooling gas loop channel perpendicular to the direction from the feeding door to the discharging door is in a shape of Chinese character 'hui', the workpiece cooling table and the cooling chamber fan are arranged on the path of the circulation cooling gas loop channel at intervals, and the circulation cooling gas circulates in the circulation cooling gas loop channel by the operation of the cooling chamber fan so as to cool the workpiece placed on the workpiece cooling table.
3. The apparatus for rapid cooling of workpieces under protective atmosphere according to claim 2, wherein the gas cooling apparatus comprises: the gas cooling device comprises a gas cooling fan, a tube array type water cooling device and a water supply and drainage pipeline, wherein the gas cooling fan and the tube array type water cooling device are arranged on a path of the gas cooling circulation channel at intervals, the water supply and drainage pipeline is arranged on the heat preservation shell and communicated with the tube array type water cooling device, part of circulating cooling gas in the circulating cooling gas loop channel is pumped into the gas cooling circulation channel by the operation of the gas cooling fan, and is discharged back into the circulating cooling gas loop channel after being cooled by the tube array type water cooling device.
4. The apparatus for rapid cooling of workpieces under a protective atmosphere of claim 3, wherein the gas cooling apparatus further comprises: and the cooling water bypass pipeline is communicated with a water supply pipeline in the water supply and drainage pipeline.
5. The apparatus of claim 2, wherein the gas cooling circulation channel has an air inlet and an air outlet at opposite ends thereof, the air inlet is located adjacent to the workpiece cooling platen and is in communication with the cooling circulation channel, and the air outlet is located adjacent to the air outlet of the cooling chamber fan and is in communication with the cooling circulation channel.
6. The rapid workpiece cooling device under the protective atmosphere of claim 5, wherein an air inlet valve is arranged at an air inlet end of the gas cooling circulation channel, an air outlet valve is arranged at an air outlet end of the gas cooling circulation channel, and the flow rate of the circulating cooling gas entering the gas cooling circulation channel can be adjusted by adjusting the opening and closing degree of the air inlet valve and/or the air outlet valve.
7. The apparatus for rapidly cooling a workpiece under a protective atmosphere according to claim 2, further comprising: at least two temperature control devices respectively arranged at two sides of the workpiece cooling table on the path of the circulating cooling gas loop.
8. The apparatus for rapidly cooling a workpiece under a protective atmosphere of claim 1, further comprising: and the heating device is arranged in the cooling circulation chamber.
9. The apparatus for rapidly cooling a workpiece under a protective atmosphere of claim 1, further comprising: and the workpiece temperature monitor is arranged on the heat-insulating shell and is adjacent to the workpiece cooling table.
10. The apparatus for rapidly cooling a workpiece under a protective atmosphere of claim 1, further comprising: the furnace pressure monitoring device and the waste gas discharging device are arranged on the heat-insulating shell and are communicated with the cooling circulation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790821.8U CN210237684U (en) | 2019-05-29 | 2019-05-29 | Workpiece rapid cooling device under protective atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920790821.8U CN210237684U (en) | 2019-05-29 | 2019-05-29 | Workpiece rapid cooling device under protective atmosphere |
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| Publication Number | Publication Date |
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| CN210237684U true CN210237684U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920790821.8U Active CN210237684U (en) | 2019-05-29 | 2019-05-29 | Workpiece rapid cooling device under protective atmosphere |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042208A (en) * | 2019-05-29 | 2019-07-23 | 爱协林热处理系统(北京)有限公司 | Workpiece quickly cooling device under protective atmosphere |
-
2019
- 2019-05-29 CN CN201920790821.8U patent/CN210237684U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042208A (en) * | 2019-05-29 | 2019-07-23 | 爱协林热处理系统(北京)有限公司 | Workpiece quickly cooling device under protective atmosphere |
| CN110042208B (en) * | 2019-05-29 | 2024-05-28 | 爱协林热处理系统(北京)有限公司 | Workpiece rapid cooling device under protective atmosphere |
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