CN108588364B - Quenching device for uniformly cooling workpiece by adjusting flow velocity - Google Patents
Quenching device for uniformly cooling workpiece by adjusting flow velocity Download PDFInfo
- Publication number
- CN108588364B CN108588364B CN201810717213.4A CN201810717213A CN108588364B CN 108588364 B CN108588364 B CN 108588364B CN 201810717213 A CN201810717213 A CN 201810717213A CN 108588364 B CN108588364 B CN 108588364B
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- annular
- drainage
- quenching
- upward
- tank
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- 238000010791 quenching Methods 0.000 title claims abstract description 47
- 230000000171 quenching effect Effects 0.000 title claims abstract description 47
- 238000001816 cooling Methods 0.000 title claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 210000005056 cell body Anatomy 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
- C21D1/64—Quenching devices for bath quenching with circulating liquids
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
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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)
- Heat Treatment Of Articles (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention discloses a quenching device for uniformly cooling a workpiece by adjusting flow velocity, which comprises a quenching cooling tank body and a quenching medium, wherein: a) The quenching cooling tank body comprises an outer tank and an inner tank, and a device for stirring quenching medium is arranged at the periphery of the inner tank; b) The bottom of the inner groove is provided with an annular drainage cover which comprises an annular horizontal drainage plate and an annular upward drainage plate; c) The upward drainage plates in the annular drainage cover are concentrically arranged, and the tops of the upward drainage plates are positioned on the same horizontal plane; d) The horizontal drainage plates in the annular drainage covers correspond to the outlets of the guide pipes and are parallel to the bottom of the inner groove, the horizontal drainage plates corresponding to the outer ring upward drainage plates are located on the upper layer, and the upward drainage plates located in the center are overlapped with the bottom of the inner groove.
Description
Technical Field
The invention relates to a quenching cooling device in the material heat treatment process, in particular to a quenching device for uniformly cooling a workpiece by adjusting the flow rate, which is matched equipment in the heat treatment process and belongs to the field of machinery.
Background
Cooling is one of the key steps in the heat treatment process, and the rationality of the design of the quenching cooling device often determines the quality of the finished quenched parts. The quenching cooling device applied to the field of heat treatment at present has the problems of poor uniformity of a flow field, low flow velocity of fluid, uncontrollable flow velocity and the like, so that the problems of cracking, large deformation, unqualified mechanical property and microstructure and the like of the parts after heat treatment are frequently caused.
Disclosure of Invention
The invention aims to provide a quenching tank capable of adjusting the circulating cooling degree of quenching liquid, aiming at a series of problems of slow flow of the quenching liquid, nonuniform flow field, uncontrollable flow velocity and the like in the conventional quenching tank.
The purpose of the invention is realized in the following way: the utility model provides a through quenching device of adjusting velocity of flow to even cooling of work piece, includes the quenching cooling cell body, has quenching medium in the quenching cooling cell body, its characterized in that:
a) The quenching cooling tank body comprises an outer tank and an inner tank, the top of the inner tank is lower than the outer tank, the top of the inner tank is immersed in quenching medium, the inner tank is a cylindrical tank body, at least three uniformly distributed devices for stirring the quenching medium are arranged on the periphery of the inner tank, the stirring device comprises a flow guide pipe, the inlet of the flow guide pipe is lower than the top of the inner tank, paddles driven by a variable frequency motor are arranged in the flow guide pipe, and the outlet of the flow guide pipe is positioned on the side wall of the bottom of the inner tank;
b) At least three annular drainage covers are arranged at the bottom of the inner groove, each annular drainage cover comprises an annular horizontal drainage plate and an annular upward drainage plate, and the horizontal drainage plates and the annular upward drainage plates are in arc transition;
c) The upward flow guiding plates in the annular flow guiding covers are concentrically arranged, the bottoms of the groove bodies are divided into corresponding annular grooves, the tops of the annular grooves are positioned on the same horizontal plane, and the height of the tops of the upward flow guiding plates in the annular flow guiding covers is lower than one fourth of the actual height of the inner groove;
d) The horizontal drainage plates in the annular drainage covers correspond to the outlets of the guide pipes and are parallel to the bottom of the inner groove, and the horizontal drainage plates are sequentially arranged from top to bottom, wherein the horizontal drainage plates corresponding to the outer annular upward drainage plates are positioned on the upper layer, and the upward drainage plates positioned in the center are overlapped with the bottom of the inner groove.
In the present invention: four evenly distributed devices for stirring quenching medium are arranged on the periphery of the inner tank.
In the present invention: in the annular drainage cover of the inner groove, the upward drainage plate positioned at the center is a conical body, and the others are all vertically upward annular.
In the present invention: the outlet of the honeycomb duct is a rectangular flared horn mouth, the honeycomb duct is in seamless joint with the side wall of the bottom of the inner tank through the rectangular flared horn mouth, and two upright splayed splitter blades are arranged in the rectangular flared horn mouth and uniformly divide the outlet.
In the present invention: the inner wall of the inner groove is of a throat structure with a small middle section and large sections at two ends and is formed by cambered surfaces.
The invention has the advantages that: because the quenching cooling tank body comprises an outer tank and an inner tank, the top of the inner tank is lower than the outer tank, the top of the inner tank is immersed in quenching medium, wherein the inner tank is a cylindrical tank body, at least three uniformly distributed devices for stirring the quenching medium are arranged on the periphery of the inner tank, the stirring devices comprise a flow guide pipe, the inlet of the flow guide pipe is lower than the top of the inner tank, a motor-driven blade is arranged in the flow guide pipe, the outlet of the flow guide pipe is positioned on the side wall of the bottom of the inner tank, quenching medium in the outer tank can enter the inner tank from the bottom to circularly dissipate heat of a workpiece, and especially the speed of circulating flow can be regulated under the control of a variable frequency motor. Because at least three annular drainage covers are arranged at the bottom of the inner tank, each annular drainage cover comprises an annular horizontal drainage plate and an annular upward drainage plate, the horizontal drainage plates and the annular upward drainage plates are in arc transition, particularly, the outlet of the flow guide pipe is a rectangular flared bell mouth, the flow guide pipe is in seamless butt joint with the side wall of the bottom of the inner tank through the rectangular flared bell mouth, two upright splayed flow dividing blades are arranged in the rectangular flared bell mouth and uniformly divide the outlet, and the measures are more beneficial to uniformly distributing quenching medium entering the inner tank on one opposite plane of the bottom of the inner tank. Because the upward drainage plates in the drainage covers are concentrically arranged and the bottoms of the groove bodies are divided into corresponding annular grooves, the tops of the groove bodies are positioned on the same horizontal plane, and particularly, the tops of the groove bodies are not higher than one fourth of the height of the inner groove, the inner groove can be ensured to have a large enough working area. The inner wall of the inner groove is small in middle section and large in sections at two ends, and the flow speed of quenching medium passing through the surface of the workpiece can be accelerated through the throat pipe structure formed by the cambered surfaces.
The invention has compact structure and convenient maintenance.
Drawings
Fig. 1 is a schematic diagram of the perspective view of the present invention.
FIG. 2 is a schematic view of the cross-sectional structure of the A-A direction in FIG. 1.
Fig. 3 is a top view of fig. 1.
FIG. 4 is a schematic diagram of a rectangular flared horn structure with the draft tube in seamless butt joint with the side wall of the bottom of the inner tank.
FIG. 5 is a schematic view of a centrally located annular drainage mask.
FIG. 6 is a schematic view of another annular drainage cover structure.
In the figure: 1. the device comprises an outer groove, 2, an inner groove, 3, paddles, 4, a flow guide pipe, 5, an annular flow guide cover, 6, a horizontal flow guide plate, 7, an upward flow guide plate, 8, a rectangular flared horn mouth, 9 and a flow guide blade.
Detailed Description
The drawings disclose, without limitation, specific configurations of embodiments of the invention, and the invention is further described below with reference to the accompanying drawings.
As can be seen from fig. 1 and 2, the quenching cooling tank comprises a quenching cooling tank body, wherein a quenching medium is arranged in the quenching cooling tank body, the quenching cooling tank body comprises an outer tank 1 and an inner tank 2, the top of the inner tank 2 is lower than the outer tank 1, the top of the inner tank 2 is immersed in the quenching medium, the inner tank 2 is a cylindrical tank body, at least three uniformly distributed devices for stirring the quenching medium are arranged on the periphery of the inner tank 2, the stirring devices comprise a flow guide pipe 4, the inlet of the flow guide pipe 4 is lower than the top of the inner tank 2, paddles 3 driven by a variable frequency motor are arranged in the flow guide pipe 4, and the outlet of the flow guide pipe 4 is positioned on the side wall of the bottom of the inner tank 2.
At least three annular drainage covers 5 are arranged at the bottom of the inner groove 2, each annular drainage cover 5 comprises an annular horizontal drainage plate 6 and an annular upward drainage plate 7, and the horizontal drainage plates 6 and the annular upward drainage plates 7 are in arc transition. The upward drainage plates 7 in the annular drainage covers 5 are concentrically arranged, the bottoms of the groove bodies are divided into corresponding annular grooves, and the tops of the annular drainage covers are positioned on the same horizontal plane. The horizontal drainage plates 6 in the annular drainage covers 5 correspond to the outlets of the guide pipes and are parallel to the bottom of the inner groove 2, and the horizontal drainage plates 6 are sequentially arranged from top to bottom, wherein the horizontal drainage plates 6 corresponding to the outer annular upward drainage plates 7 are positioned on the upper layer, and the upward drainage plates 7 positioned at the center are overlapped with the bottom of the inner groove 2.
In the concrete implementation, the height of the top of the upward flow guiding plate 7 in each annular flow guiding cover 5 is lower than one fourth of the actual height of the inner groove 2.
As can be seen from fig. 3 and 4, in this embodiment, four evenly distributed devices for stirring the quenching medium are provided around the periphery of the inner tank 2. The outlet of the flow guide pipe 4 is a rectangular flared horn mouth 8, the flow guide pipe 4 is in seamless butt joint with the side wall of the bottom of the inner tank 2 through the rectangular flared horn mouth 8, and two upright splayed flow dividing blades 9 are arranged in the rectangular flared horn mouth 8 and uniformly divide the outlet.
As can be seen from fig. 5, in the annular flow-guiding hood of the inner tank 2, the centrally located upward flow-guiding plate 7 is a cone.
As can be seen from fig. 6, the other elements are all vertically upward annular except for the centrally located upward flow guiding plate 7.
In the schematic diagrams shown in fig. 1 to 4, the inner wall of the inner tank 2 according to the present invention has a small middle section and large sections at both ends, and is a throat structure formed by cambered surfaces.
Claims (3)
1. The utility model provides a through quenching device of adjusting velocity of flow to even cooling of work piece, includes the quenching cooling cell body, has quenching medium in the quenching cooling cell body, its characterized in that:
a) The quenching cooling tank body comprises an outer tank and an inner tank, the top of the inner tank is lower than the outer tank, the top of the inner tank is immersed in quenching medium, the inner tank is a cylindrical tank body, at least three uniformly distributed devices for stirring the quenching medium are arranged on the periphery of the inner tank, the stirring device comprises a flow guide pipe, the inlet of the flow guide pipe is lower than the top of the inner tank, paddles driven by a variable frequency motor are arranged in the flow guide pipe, and the outlet of the flow guide pipe is positioned on the side wall of the bottom of the inner tank;
b) At least three annular drainage covers are arranged at the bottom of the inner groove, each annular drainage cover comprises an annular horizontal drainage plate and an annular upward drainage plate, and the horizontal drainage plates and the annular upward drainage plates are in arc transition; in the annular drainage cover of the inner groove, the upward drainage plate positioned at the center is a cone, and the others are all vertically upward annular;
c) The upward drainage plates in the annular drainage covers are concentrically arranged, the bottoms of the groove bodies are divided into corresponding annular grooves, and the tops of the annular drainage covers are positioned on the same horizontal plane; the height of the top of the upward drainage plate in each annular drainage cover is lower than one fourth of the actual height of the inner groove;
d) The horizontal drainage plates in the annular drainage covers correspond to the outlets of the guide pipes and are parallel to the bottom of the inner groove, and the horizontal drainage plates are sequentially arranged from top to bottom, wherein the horizontal drainage plates corresponding to the outer annular upward drainage plates are positioned on the upper layer, and the upward drainage plates positioned in the center are overlapped with the bottom of the inner groove; the outlet of the honeycomb duct is a rectangular flared horn mouth, the honeycomb duct is in seamless joint with the side wall of the bottom of the inner tank through the rectangular flared horn mouth, and two upright splayed splitter blades are arranged in the rectangular flared horn mouth and uniformly divide the outlet.
2. The quenching apparatus for uniformly cooling a workpiece by adjusting a flow rate as claimed in claim 1, wherein: four evenly distributed devices for stirring quenching medium are arranged on the periphery of the inner tank.
3. The quenching apparatus for uniformly cooling a workpiece by adjusting a flow rate according to claim 1 or 2, wherein: the inner wall of the inner groove is of a throat structure with a small middle section and large sections at two ends and is formed by cambered surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717213.4A CN108588364B (en) | 2018-06-29 | 2018-06-29 | Quenching device for uniformly cooling workpiece by adjusting flow velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717213.4A CN108588364B (en) | 2018-06-29 | 2018-06-29 | Quenching device for uniformly cooling workpiece by adjusting flow velocity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108588364A CN108588364A (en) | 2018-09-28 |
| CN108588364B true CN108588364B (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717213.4A Active CN108588364B (en) | 2018-06-29 | 2018-06-29 | Quenching device for uniformly cooling workpiece by adjusting flow velocity |
Country Status (1)
| Country | Link |
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| CN (1) | CN108588364B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055387B (en) * | 2019-04-28 | 2024-03-29 | 南京高速齿轮制造有限公司 | Quenching device with uniform quenching medium flow |
| CN116124830A (en) * | 2023-01-09 | 2023-05-16 | 季华实验室 | Cooling performance testing device for cooling medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4575054A (en) * | 1982-02-08 | 1986-03-11 | Kruppert Enterprises, Inc. | Apparatus for quenching steel pipes |
| CN103643010A (en) * | 2013-11-27 | 2014-03-19 | 江苏浩特隆搅拌设备有限公司 | Stirring device of quenching tank |
| CN204897990U (en) * | 2015-08-22 | 2015-12-23 | 溧阳市永恒热处理有限公司 | Double entry response quenching groove |
| CN106702122A (en) * | 2016-12-22 | 2017-05-24 | 上海电机学院 | Quenching cooling device for large seal head |
| CN208594314U (en) * | 2018-06-29 | 2019-03-12 | 南京高速齿轮制造有限公司 | The quenching unit that workpiece is uniformly cooled down by adjusting flow velocity |
-
2018
- 2018-06-29 CN CN201810717213.4A patent/CN108588364B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4575054A (en) * | 1982-02-08 | 1986-03-11 | Kruppert Enterprises, Inc. | Apparatus for quenching steel pipes |
| CN103643010A (en) * | 2013-11-27 | 2014-03-19 | 江苏浩特隆搅拌设备有限公司 | Stirring device of quenching tank |
| CN204897990U (en) * | 2015-08-22 | 2015-12-23 | 溧阳市永恒热处理有限公司 | Double entry response quenching groove |
| CN106702122A (en) * | 2016-12-22 | 2017-05-24 | 上海电机学院 | Quenching cooling device for large seal head |
| CN208594314U (en) * | 2018-06-29 | 2019-03-12 | 南京高速齿轮制造有限公司 | The quenching unit that workpiece is uniformly cooled down by adjusting flow velocity |
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| CN108588364A (en) | 2018-09-28 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190925 Address after: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Address before: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200512 Address after: 211100 No. 30 Houjiao Road, High-tech Park, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. |
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