CN114032371A - Intermediate frequency quenching cooling device of steering knuckle - Google Patents
Intermediate frequency quenching cooling device of steering knuckle Download PDFInfo
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- CN114032371A CN114032371A CN202111161516.0A CN202111161516A CN114032371A CN 114032371 A CN114032371 A CN 114032371A CN 202111161516 A CN202111161516 A CN 202111161516A CN 114032371 A CN114032371 A CN 114032371A
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- furnace
- oil
- quenching
- cooling device
- furnace body
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- 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
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- 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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
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- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/58—Oils
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- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
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- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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)
- Oil, Petroleum & Natural Gas (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a heat treatment technology, in particular to a medium-frequency quenching cooling device for a steering knuckle. The utility model provides a middle frequency quenching cooling device of knuckle, includes quenching furnace, the oil bath of splendid attire cooling oil, switches on the oil pump between quenching furnace, oil bath: the quenching furnace comprises a furnace cover, a furnace body and a furnace base which are sequentially and hermetically connected, wherein the inner wall of the furnace body is provided with an annular coil mounting groove which is matched with the furnace base to form a closed space, an induction coil is arranged in the closed space, a workpiece support is fixedly arranged on the furnace base, the furnace body is also provided with an air inlet valve and an air outlet valve which are controlled electronically, an oil suction pipe is connected between an oil pump and an oil pool, and the oil pump is also connected with an oil delivery pipe which is communicated with the inside of the furnace body from the bottom of the furnace base. The induction coil is isolated from the workpiece, and the coil is not polluted when quenching and cooling are carried out; nitrogen is blown in through the air inlet valve to form atmosphere protection on the workpiece and prevent oxidation; and nitrogen is continuously blown into the quenching furnace to supplement the air pressure in the furnace, so that air suction is avoided, and the energy consumption of an oil pump is saved.
Description
Technical Field
The invention relates to a heat treatment technology, in particular to a medium-frequency quenching cooling device for a steering knuckle.
Background
Quenching, also known as heat treatment, refers to a hot working process of metals in which the material is in the solid state, heated, held and cooled to achieve a desired texture and properties.
The metal heat treatment process can be broadly divided into three major categories, bulk heat treatment, surface heat treatment and chemical heat treatment. Each major category can be further divided into several different heat treatment processes according to the heating medium, heating temperature and cooling method. Different structures can be obtained by different heat treatment processes on the same metal, so that different properties can be obtained.
The heat treatment process generally comprises three processes of heating, heat preservation and cooling, and sometimes only comprises two processes of heating and cooling. These processes are connected with each other without interruption.
The integral heat treatment is a metal heat treatment process for integrally heating a workpiece and then cooling the workpiece at a proper speed to obtain a required metallographic structure so as to change the integral mechanical property of the workpiece. The integral heat treatment of steel roughly comprises four basic processes of annealing, normalizing, quenching and tempering.
The surface heat treatment is a metal heat treatment process for only heating the surface layer of a workpiece to change the mechanical property of the surface layer. The main methods of surface heat treatment include flame quenching and induction heating heat treatment, and the commonly used heat sources include flame such as oxyacetylene or oxypropylene, induced current, laser, electron beam, and the like.
Chemical heat treatment is a metal heat treatment process by changing the chemical composition, structure and properties of the surface layer of a workpiece. The difference between the chemical heat treatment and the surface heat treatment is that the former changes the chemical composition of the surface layer of the workpiece.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
The utility model provides a middle frequency quenching cooling device of knuckle, includes quenching furnace, the oil bath of splendid attire cooling oil, switches on the oil pump between quenching furnace, oil bath:
the quenching furnace comprises a furnace cover, a furnace body and a furnace base which are sequentially and hermetically connected, wherein the inner wall of the furnace body is provided with an annular coil mounting groove which is matched with the furnace base to form a closed space, an induction coil is arranged in the closed space, a workpiece support is fixedly arranged on the furnace base, the furnace body is also provided with an air inlet valve and an air outlet valve which are controlled electronically, an oil suction pipe is connected between an oil pump and an oil pool, and the oil pump is also connected with an oil delivery pipe which is communicated with the inside of the furnace body from the bottom of the furnace base.
Furthermore, an oil inlet nozzle communicated with the interior of the furnace body is arranged at the center of the furnace base, and the tail end of the oil delivery pipe is connected with the oil inlet nozzle.
Further, the workpiece support comprises a triangular support fixedly supported at the center of the top of the furnace base and a workpiece mounting disc integrally formed at the top end of the triangular support, and a mounting hole is formed in the workpiece mounting disc around the center of the workpiece mounting disc.
Furthermore, the top surface of the furnace base and the inner ring edge of the coil mounting groove are correspondingly provided with sealing grooves, and sealing rings which enable the inner ring edge of the coil mounting groove to be in sealing connection with the sealing grooves are arranged in the sealing grooves.
Furthermore, the bottom of the furnace base is provided with a supporting angle bracket which enables the furnace base to form a gap with the ground.
Furthermore, an annular sealing convex ring is formed on the inner side of the top of the furnace body, and a circular convex block which is in corresponding sealing connection with the sealing convex ring is arranged at the bottom of the furnace cover.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention adopts a closed coil installation mode, isolates the induction coil from the workpiece, and does not pollute the coil when quenching and cooling;
(2) an air inlet valve and an air outlet valve which are controlled electronically are arranged on the furnace body, and nitrogen is blown in through the air inlet valve to form atmosphere protection on the workpiece and prevent oxidation;
(3) in addition, when oil return is carried out, the exhaust valve is closed, nitrogen is continuously blown into the quenching furnace to supplement the air pressure in the furnace, air suction is avoided, and meanwhile, the energy consumption of the oil pump is saved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
A partial enlarged view at a in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a medium frequency quenching cooling device for a knuckle includes a quenching furnace, an oil bath 1 for containing cooling oil, and an oil pump 2 connected between the quenching furnace and the oil bath 1:
the quenching furnace comprises a furnace cover 3, a furnace body 4 and a furnace base 5 which are sequentially and hermetically connected, wherein the inner wall of the furnace body 4 is provided with an annular coil mounting groove 6 which is matched with the furnace base 5 to form a closed space, the closed space is internally provided with an induction coil 6, the furnace base 5 is fixedly provided with a workpiece support 7, the furnace body 4 is also provided with an air inlet valve 81 and an exhaust valve 82 which are controlled by electrons, an oil suction pipe 21 is connected between an oil pump 2 and an oil pool 1, and the oil pump 2 is also connected with an oil delivery pipe 22 which is communicated with the inside of the furnace body 4 from the bottom of the furnace base 5. The invention adopts a closed coil installation mode, isolates the induction coil 6 from the workpiece, and does not pollute the coil when quenching and cooling; an electronically controlled air inlet valve 81 and an electronically controlled air outlet valve 82 are arranged on the furnace shell 4, and nitrogen is blown in through the air inlet valve 81 to form atmosphere protection on the workpiece and prevent the workpiece from being oxidized; in addition, when oil return is carried out, the exhaust valve 82 is closed, and nitrogen is continuously blown into the quenching furnace to supplement the air pressure in the furnace, so that air suction is avoided, and the energy consumption of the oil pump 2 is saved.
Further, an oil inlet 51 communicated with the interior of the furnace body 4 is arranged at the center of the furnace base 5, and the tail end of the oil delivery pipe 22 is connected with the oil inlet 51.
Further, the work support 7 includes a triangular support 71 fixedly supported at the top center of the furnace base 5 and a work mounting plate 72 integrally formed at the top end of the triangular support 71, and the work mounting plate 72 is provided with a mounting hole around the center thereof.
Further, a sealing groove is correspondingly formed in the top surface of the furnace base 5 and the inner annular edge of the coil mounting groove 6, and a sealing ring 52 for hermetically connecting the inner annular edge of the coil mounting groove 6 and the sealing groove is arranged in the sealing groove.
Further, the bottom of the furnace base 5 is provided with a supporting angle bracket 53 which forms a gap with the ground.
Furthermore, an annular sealing convex ring 42 is formed on the inner side of the top of the furnace body 4, and a circular convex block 31 which is correspondingly connected with the sealing convex ring 42 in a sealing manner is arranged at the bottom of the furnace cover 3.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides an intermediate frequency quenching cooling device of knuckle, includes the oil bath of quenching furnace, splendid attire cooling oil, switches on the oil pump between quenching furnace, oil bath, its characterized in that:
the quenching furnace comprises a furnace cover, a furnace body and a furnace base which are sequentially and hermetically connected, wherein the inner wall of the furnace body is provided with an annular coil mounting groove which is matched with the furnace base to form a closed space, an induction coil is arranged in the closed space, a workpiece support is fixedly arranged on the furnace base, the furnace body is also provided with an air inlet valve and an air outlet valve which are controlled electronically, an oil suction pipe is connected between an oil pump and an oil pool, and the oil pump is also connected with an oil delivery pipe which is communicated with the inside of the furnace body from the bottom of the furnace base.
2. The intermediate frequency quenching cooling device of a steering knuckle according to claim 1, wherein an oil inlet nozzle communicated with the inside of a furnace body is arranged at the center of a furnace base, and the tail end of an oil delivery pipe is connected with the oil inlet nozzle.
3. The intermediate frequency quenching cooling device of a steering knuckle according to claim 1, wherein the workpiece support comprises a triangular support fixedly supported at the top center of the furnace base and a workpiece mounting plate integrally formed at the top end of the triangular support, and the workpiece mounting plate is provided with a mounting hole around the center thereof.
4. The intermediate frequency quenching cooling device of a knuckle according to claim 1, wherein the top surface of the furnace base is provided with a sealing groove corresponding to the inner annular edge of the coil mounting groove, and a sealing ring for sealing the inner annular edge of the coil mounting groove and the sealing groove is arranged in the sealing groove.
5. The device for intermediate frequency quenching and cooling of a steering knuckle according to claim 1, wherein the bottom of the furnace base is provided with a supporting angle bracket which forms a gap with the ground.
6. The intermediate frequency quenching cooling device of a steering knuckle as claimed in claim 1, wherein an annular sealing convex ring is formed on the inner side of the top of the furnace body, and a round bump corresponding to the sealing convex ring is arranged on the bottom of the furnace cover and connected with the sealing convex ring in a sealing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111161516.0A CN114032371A (en) | 2021-09-30 | 2021-09-30 | Intermediate frequency quenching cooling device of steering knuckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111161516.0A CN114032371A (en) | 2021-09-30 | 2021-09-30 | Intermediate frequency quenching cooling device of steering knuckle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114032371A true CN114032371A (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111161516.0A Pending CN114032371A (en) | 2021-09-30 | 2021-09-30 | Intermediate frequency quenching cooling device of steering knuckle |
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| Country | Link |
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| CN (1) | CN114032371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044751A (en) * | 2022-08-11 | 2022-09-13 | 江苏艾卡森智能科技有限公司 | Quenching device for machining of numerical control machine tool accessories |
-
2021
- 2021-09-30 CN CN202111161516.0A patent/CN114032371A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044751A (en) * | 2022-08-11 | 2022-09-13 | 江苏艾卡森智能科技有限公司 | Quenching device for machining of numerical control machine tool accessories |
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