CN111850259A - Large-scale rotary workpiece surface quenching system - Google Patents
Large-scale rotary workpiece surface quenching system Download PDFInfo
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- CN111850259A CN111850259A CN202010625517.5A CN202010625517A CN111850259A CN 111850259 A CN111850259 A CN 111850259A CN 202010625517 A CN202010625517 A CN 202010625517A CN 111850259 A CN111850259 A CN 111850259A
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- 238000010791 quenching Methods 0.000 title claims abstract description 187
- 230000000171 quenching effect Effects 0.000 title claims abstract description 187
- 239000007788 liquid Substances 0.000 claims abstract description 88
- 239000000498 cooling water Substances 0.000 claims abstract description 78
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 230000006698 induction Effects 0.000 claims description 44
- 238000010438 heat treatment Methods 0.000 claims description 41
- 239000007921 spray Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000003754 machining Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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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
- C21D1/667—Quenching devices for spray quenching
-
- 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
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- 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
-
- 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
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
-
- 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
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- 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)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a surface quenching system for a large-scale rotary workpiece, which comprises: the rotary workpiece seat, the quenching workbench, the cooling water circulation subsystem, the quenching liquid circulation subsystem and the main electric cabinet; the rotary workpiece seat comprises a variable-frequency rotary motor seat and a rotary workpiece support consisting of a plurality of telescopic support arms, the quenching workbench comprises a base, a movable platform and a quenching mechanism, the movable platform is mounted on the base and can horizontally move along the direction of the base, and the quenching mechanism is fixed on the movable platform; the cooling water circulation subsystem comprises a cooling tower, a cooling water circulation pool, a cooling water circulation pipeline and a cooling water path arranged in the quenching mechanism; the quenching liquid circulating subsystem comprises a quenching control box, a quenching liquid circulating pool, a quenching liquid collecting pool and a quenching liquid circulating pipeline. Through the mode, the rotary quenching machine can meet the rotary quenching processing requirements of various large-sized workpieces, has stable processing quality and high surface hardness, and is simple in structure and convenient to operate.
Description
Technical Field
The invention relates to the field of processing equipment, in particular to a surface quenching system for a large-scale rotary workpiece.
Background
Before assembling, wear-resistant rings on a TBM shield machine need to be subjected to surface quenching processing to further improve the surface strength and wear resistance, but the existing rotary quenching processing equipment can only process parts with smaller diameter generally, the surface quenching processing effect on large-size parts on the equipment such as the wear-resistant rings of the shield machine is poor, the processing depth of the surface hardness of finished products is not uniform, and the surface hardness is not uniform, so that the wear-resistant rings of the equipment such as the shield machine can only be purchased or processed by using special equipment generally, and the special equipment for surface quenching processing of the wear-resistant rings of the shield machine has large volume, high price, small application range and poor cost performance ratio.
Disclosure of Invention
The invention mainly solves the technical problem of providing a surface quenching system for a large-sized rotary workpiece, which can improve the surface quenching quality of the large-sized rotary workpiece and reduce the equipment investment.
In order to solve the technical problems, the invention adopts a technical scheme that: the surface quenching system for the large-scale rotary workpiece comprises: the rotary workpiece seat, the quenching workbench, the cooling water circulation subsystem, the quenching liquid circulation subsystem and the main electric cabinet are respectively and electrically connected with the main electric cabinet; the rotary workpiece seat comprises a variable-frequency rotary motor seat and a rotary workpiece support, the rotary workpiece support is composed of a plurality of support arms, and the length of each support arm is adjustable. The variable-frequency rotary motor base can drive the rotary workpiece support to rotate, the quenching workbench is arranged on the outer side of the rotary support and comprises a base, a movable platform and a quenching mechanism, the movable platform is mounted on the base and can horizontally move along the direction of the base, the quenching mechanism is fixed on the movable platform, and the quenching workbench and the rotary workpiece support can be linked and automatically controlled; the cooling water circulation subsystem comprises a cooling tower, a cooling water circulation pool, a cooling water circulation pipeline and a cooling water path arranged in the quenching mechanism, wherein cooling water enters the quenching mechanism through the cooling water circulation pipeline after being cooled by the cooling tower, then flows back to the cooling water circulation pool through the cooling water circulation pipeline, and enters the cooling tower from the cooling water circulation pool; the quenching liquid circulation subsystem comprises a quenching control box, a quenching liquid circulation tank, a quenching liquid collection tank and a quenching liquid circulation pipeline, wherein the quenching control box controls quenching liquid in the quenching liquid circulation tank to enter a quenching mechanism through the quenching liquid circulation pipeline and then to be sprayed onto a heated workpiece, and then the quenching liquid is collected by a quenching liquid recovery box arranged below the workpiece and then is sent into the quenching liquid circulation tank through the quenching liquid circulation pipeline.
In a preferred embodiment of the present invention, an extension line of the horizontal motion track of the movable platform passes through a center point of the rotary workpiece seat.
In a preferred embodiment of the present invention, a height adjusting mechanism is further installed between the movable platform and the base, and the height adjusting mechanism can drive the movable platform to vertically move relative to the base.
In a preferred embodiment of the invention, the quenching mechanism is a medium-frequency induction quenching mechanism, the medium-frequency induction quenching mechanism comprises a medium-frequency electric cabinet and a quenching head, and a circulating heat exchange tube is installed in the medium-frequency electric cabinet.
In a preferred embodiment of the invention, the quenching head comprises a medium-frequency induction heating pipe and a quenching liquid spray pipe, the medium-frequency induction heating pipe is of a hollow structure, a cooling water inlet is arranged above the medium-frequency induction heating pipe, a cooling water outlet is arranged below the medium-frequency induction heating pipe, the quenching liquid spray pipe is installed on one side of the medium-frequency induction heating pipe, a quenching liquid inlet is arranged at the top of the quenching liquid spray pipe, the quenching liquid inlet is connected with a quenching liquid circulating pool through a quenching liquid circulating pipeline, and a plurality of spray holes are arranged on the surface of one side of the quenching liquid spray pipe, which faces the processing surface.
In a preferred embodiment of the present invention, the cooling water pipeline in the quenching mechanism has two paths, one path is a cooling water path of the intermediate frequency induction heating pipe, the cooling water from the cooling tower enters the intermediate frequency induction heating pipe through a cooling water circulation pipeline connected to the water inlet of the intermediate frequency induction heating pipe, the cooling water after absorbing heat flows out from the water outlet through the cooling water circulation pipeline and enters the cooling water circulation pool, the other path is a cooling water path of the intermediate frequency electric cabinet, the cooling water from the cooling tower enters the circulating heat exchange pipe in the intermediate frequency electric cabinet through the cooling water circulation pipeline, and the cooling water after absorbing heat enters the cooling water circulation pool through the cooling water circulation pipeline.
In a preferred embodiment of the invention, the distance between the quenching nozzle and the medium-frequency induction heating pipe is 3-5 mm.
In a preferred embodiment of the invention, the shapes of the medium-frequency induction heating pipe and the quenching liquid spray pipe are matched with the shape of the surface to be processed of the workpiece.
In a preferred embodiment of the present invention, a processing surface distance sensor is further installed on the movable platform, and the movable platform can adjust the position of the platform according to feedback data of the processing surface distance sensor.
The invention has the beneficial effects that: the invention can adapt to the rotary quenching processing requirements of various large-sized workpieces with different sizes by adjusting the position of the movable platform on the base, the time interval between the heating step and the cooling step in the quenching process is small, the quenching quality is high, the surface hardness of the processed product is uniform and stable, the processing depth of the surface layer is as high as 6mm, and the processing requirements of various large-sized special gears and rotary workpieces can be met.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;
FIG. 2 is an enlarged detail view of the circle of FIG. 1;
FIG. 3 is a schematic diagram of a quenching head structure according to a preferred embodiment of the invention;
the parts in the drawings are numbered as follows:
1. the quenching device comprises a workpiece, 2 parts of a rotary workpiece seat, 3 parts of a quenching head, 4 parts of a base, 5 parts of a movable platform, 6 parts of a medium-frequency electric cabinet, 7 parts of a quenching liquid recovery box, 8 parts of a cooling tower, 9 parts of a cooling water circulation tank, 10 parts of a quenching liquid circulation tank, 11 parts of a main electric cabinet and 12 parts of a quenching control box;
301. the medium-frequency induction heating pipe comprises a medium-frequency induction heating pipe 302, a quenching liquid spray pipe 303, a cooling water inlet 304, a cooling water outlet 305 and a quenching liquid inlet.
601. A heat exchange conduit.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention includes:
a large scale rotating workpiece surface quenching system, comprising: the rotary workpiece seat 2, the quenching workbench, the cooling water circulation subsystem, the quenching liquid circulation subsystem and the main electric cabinet; the rotary workpiece seat 2, the quenching worktable, the cooling water circulation subsystem and the quenching liquid circulation subsystem are respectively electrically connected with the main electric cabinet 11, and the main electric cabinet 11 provides driving current.
Gyration work piece seat 2 includes frequency conversion rotary motor seat and gyration work piece support, gyration work piece support has the support arm of 8 symmetries to constitute, the support arm is scalable support arm, can adjust according to the diameter of work piece 1, makes work piece 1 stably hold in work piece support to improve processing stability. The variable-frequency rotary motor base can drive the whole rotary workpiece support to rotate at the speed required by the process,
the quenching workbench is arranged on the outer side of the rotary support and comprises a base 4, a movable platform 5 and a quenching mechanism, wherein the movable platform 5 is installed on the base 4, and the quenching mechanism is fixed on the movable platform 5. The movable platform 5 can horizontally move along the direction of the base 4, and the extension line of the horizontal motion track of the movable platform 5 passes through the central point of the rotary workpiece seat, so that the quenching mechanism can be vertical to a processing surface in the quenching and heating process. A height adjusting mechanism is further installed between the movable platform 5 and the base 4, the height adjusting mechanism can drive the movable platform 5 to vertically move relative to the base 4, the machining height of the quenching mechanism is adjusted according to the workpiece condition, and machining convenience is improved. The movable platform 5 is also provided with a processing surface distance sensor, when the processing surface of the workpiece has convex-concave change, the processing surface distance sensor can measure the distance between the movable platform 5 and the processing surface of the workpiece at any time, so that the movable platform 5 can adjust the position of the platform in time according to the distance, and the collision with the quenching head 3 is prevented or the quenching is not uniform.
The quenching mechanism is a medium-frequency induction quenching mechanism with the processing frequency of 2kHz-8kHz, and the medium-frequency induction quenching mechanism comprises a quenching head 3 and a medium-frequency electric cabinet 6. Quenching head 3 includes intermediate frequency induction heating pipe 301 and quenching liquid spray tube 302, intermediate frequency induction heating pipe 301 is hollow structure, the top of intermediate frequency induction heating pipe 301 sets up cooling water inlet 303, the below of intermediate frequency induction heating pipe sets up cooling water outlet 304, quenching liquid spray tube 302 is installed in intermediate frequency induction heating pipe 301 one side, quenching also the spray tube with the distance between the intermediate frequency induction heating pipe is 5mm, quenching liquid spray tube 302 top sets up quenching liquid inlet 305, quenching liquid inlet 305 passes through quenching liquid circulation pipeline and connects quenching liquid circulation pond 10, quenching liquid spray tube 302 sets up a plurality of orifices towards the side surface of machined surface, and the quenching liquid can be spout the workpiece surface after the heating in the orifice under pressure.
The cooling water circulation subsystem includes cooling tower 8, cooling water circulation pond 9, circulating line and sets up the cooling water route in quenching mechanism, the cooling water route in the quenching mechanism is total two, be intermediate frequency induction heating pipe 301 cooling water route all the way, the cooling water is played by cooling tower 8 and is got into intermediate frequency induction heating pipe 301 through circulating line connection intermediate frequency induction heating pipe's cooling water inlet 303 in, after the heat absorption by cooling water outlet 304 flow out through circulating line get into cooling water circulation pond 9, another way is the 6 cooling water routes of intermediate frequency electric cabinet, the cooling water is played by cooling tower 8, get into circulation heat exchange tube 601 in the intermediate frequency electric cabinet 6 through circulating line, get into cooling water circulation pond 9 through circulating line after the heat absorption. The cooling water circulation pool 9 is connected with the cooling tower 8, and the cooling water after absorbing heat enters the cooling tower 8 through the circulation cooling pool 9 to be cooled again.
The quenching liquid circulation subsystem comprises a quenching liquid control box 12, a quenching liquid circulation tank 10, a quenching liquid collection tank 7 and a quenching liquid circulation pipeline, wherein the quenching liquid control box 12 controls quenching liquid in the quenching liquid circulation tank 10 to enter a quenching liquid spray pipe 302 from a quenching liquid inlet 302 through the quenching liquid circulation pipeline, then the quenching liquid spray pipe 302 sprays the quenching liquid onto the heated workpiece 1 to rapidly cool the workpiece 1, and then the quenching liquid collection tank 7 arranged below the workpiece 1 collects the quenching liquid falling from the workpiece and sends the quenching liquid into the quenching liquid circulation tank 10 through the quenching liquid circulation pipeline.
The shapes of the medium-frequency induction heating pipe 301 and the quenching liquid spray pipe 302 are matched with the shape of the surface to be processed of the workpiece 1, so that the position needing quenching can be completely covered, and local defects are prevented.
The method for processing the wear-resisting ring of the TBM shield tunneling machine by using the system comprises the following steps:
firstly, adjusting the length of a support arm, placing a wear-resistant ring of a TBM shield machine on a station support, and stably holding the wear-resistant ring by 8 support arms;
secondly, adjusting the horizontal position and the vertical position of a movable platform 5 on a quenching workbench to enable the distance between the medium-frequency induction heating pipe 301 and the quenching surface of the wear-resistant ring to reach the range of the process set distance;
And thirdly, opening a cooling water circulation subsystem and a quenching liquid circulation subsystem to synchronously spray quenching liquid, starting a medium-frequency electric cabinet 6 to enable a medium-frequency induction heating pipe 301 to start working, starting a rotary workpiece seat 2 to enable a wear-resistant ring to start rotating, starting to perform rotary quenching on the outer surface of the wear-resistant ring, wherein the surface induction heating temperature is up to 850-900 ℃ in the quenching process, and simultaneously spraying the quenching liquid to rapidly cool, the surface hardness of the workpiece can reach more than HRC55, and the surface machining depth reaches more than 6 mm.
In actual production, the quenching processing of the large-diameter wear-resistant rings with various specifications can be realized by adjusting the relative position between the movable platform 5 and the rotary workpiece seat 2.
The method for processing the large-scale gear workpiece by using the system comprises the following steps:
firstly, adjusting the length of a support arm, placing a gear workpiece on a station support, and stably holding the gear workpiece by 8 support arms;
secondly, adjusting the horizontal position and the vertical position of a movable platform 5 on a quenching workbench to enable the distance between the medium-frequency induction heating pipe 301 and the quenching surface of the wear-resistant ring to reach the range of the process set distance;
and thirdly, opening a cooling water circulation subsystem and a quenching liquid circulation subsystem to synchronously spray quenching liquid, starting an intermediate frequency electric cabinet 6 to enable an intermediate frequency induction heating pipe 301 to start working, starting a rotary workpiece seat 2 to enable a gear to start rotating, starting rotary quenching on the outer surface of the wear-resisting ring, wherein the surface induction heating temperature is up to 850-900 ℃ in the quenching process, and simultaneously spraying the quenching liquid to rapidly cool, the surface hardness of the workpiece can reach more than HRC55, and the surface machining depth reaches more than 6 mm. In the process, because the gear teeth on the surface of the gear are uneven, the distance between the gear teeth of the gear and the movable platform 5 is measured by a distance sensor of the processing surface arranged on the movable platform 5 in real time, and the horizontal position of the movable platform 5 is automatically adjusted according to distance data, so that the distance between the quenching head 3 and the gear teeth processing surface of the gear is kept constant, on one hand, the quenching head obtained on the movable platform can be prevented from being collided by the gear teeth, and on the other hand, the surface of the gear teeth can be uniformly quenched.
In actual production, the quenching processing of large-diameter gears of various specifications can be realized by adjusting the relative position between the movable platform 5 and the rotary workpiece seat 2.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A large-scale rotating workpiece surface quenching system is characterized by comprising: the rotary workpiece seat, the quenching workbench, the cooling water circulation subsystem, the quenching liquid circulation subsystem and the main electric cabinet are respectively and electrically connected with the main electric cabinet;
the rotary workpiece seat comprises a variable-frequency rotary motor seat and a rotary workpiece support, the rotary workpiece support consists of a plurality of support arms, the length of each support arm is adjustable, the variable-frequency rotary motor seat can drive the rotary workpiece support to rotate according to various frequencies,
The quenching workbench is arranged on the outer side of the rotary workpiece support and comprises a base, a movable platform and a quenching mechanism, the movable platform is mounted on the base and can horizontally move along the direction of the base, and the quenching mechanism is fixed on the movable platform;
the cooling water circulation subsystem comprises a cooling tower, a cooling water circulation pool, a cooling water circulation pipeline and a cooling water path arranged in the quenching mechanism, wherein cooling water enters the quenching mechanism through the cooling water circulation pipeline after being cooled by the cooling tower, then flows back to the cooling water circulation pool through the cooling water circulation pipeline, and enters the cooling tower from the cooling water circulation pool;
the quenching liquid circulation subsystem comprises a quenching control box, a quenching liquid circulation tank, a quenching liquid collection tank and a quenching liquid circulation pipeline, wherein the quenching control box controls quenching liquid in the quenching liquid circulation tank to enter a quenching mechanism through the quenching liquid circulation pipeline and then to be sprayed onto a heated workpiece, and then the quenching liquid is collected by a quenching liquid recovery box arranged below the workpiece and then is sent into the quenching liquid circulation tank through the quenching liquid circulation pipeline.
2. The large scale rotary workpiece surface quenching system of claim 1, wherein the extension line of the horizontal motion track of the movable platform passes through the center point of the rotary workpiece seat.
3. The large-scale rotary workpiece surface quenching system according to claim 1, wherein a height adjusting mechanism is further installed between the movable platform and the base, and the height adjusting mechanism can drive the movable platform to vertically move relative to the base.
4. The large-scale rotary workpiece surface quenching system of claim 1, wherein the quenching mechanism is a medium-frequency induction quenching mechanism, the medium-frequency induction quenching mechanism comprises a medium-frequency electric cabinet and a quenching head, and a circulating heat exchange tube is installed in the medium-frequency electric cabinet.
5. The large-scale rotary workpiece surface quenching system according to claim 4, wherein the quenching head comprises a medium-frequency induction heating pipe and a quenching liquid spray pipe, the medium-frequency induction heating pipe is of a hollow structure, a cooling water inlet is arranged above the medium-frequency induction heating pipe, a cooling water outlet is arranged below the medium-frequency induction heating pipe, the quenching liquid spray pipe is installed on one side of the medium-frequency induction heating pipe, a quenching liquid inlet is arranged at the top of the quenching liquid spray pipe, the quenching liquid inlet is connected with the quenching liquid circulating pool through a quenching liquid circulating pipeline, and a plurality of spray holes are arranged on the surface of one side of the quenching liquid spray pipe, which faces the processing surface.
6. The large-scale rotary workpiece surface quenching system of claim 5, wherein the cooling water pipeline in the quenching mechanism has two paths, one path is a cooling water path of the intermediate frequency induction heating pipe, the cooling water from the cooling tower enters the intermediate frequency induction heating pipe through a water inlet of the cooling water circulation pipeline connected with the intermediate frequency induction heating pipe, the cooling water flows out from a water outlet through the cooling water circulation pipeline after absorbing heat and enters the cooling water circulation pool, the other path is a cooling water path of the intermediate frequency electric cabinet, the cooling water from the cooling tower enters the circulating heat exchange pipe in the intermediate frequency electric cabinet through the cooling water circulation pipeline, and the cooling water enters the cooling water circulation pool through the cooling water circulation pipeline after absorbing heat.
7. The large-scale rotary workpiece surface quenching system according to claim 5, wherein the distance between the quenching liquid spray pipe and the medium-frequency induction heating pipe is 3-5 mm.
8. The system for quenching the surface of the large-sized rotating workpiece according to claim 5, wherein the shapes of the medium-frequency induction heating pipe and the quenching liquid spray pipe are matched with the shape of the surface of the workpiece to be processed.
9. The large-scale rotary workpiece surface quenching system according to claim 1, wherein the movable platform is further provided with a processing surface distance sensor, and the movable platform can adjust the position of the platform according to feedback data of the processing surface distance sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010625517.5A CN111850259A (en) | 2020-07-02 | 2020-07-02 | Large-scale rotary workpiece surface quenching system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625517.5A CN111850259A (en) | 2020-07-02 | 2020-07-02 | Large-scale rotary workpiece surface quenching system |
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| CN111850259A true CN111850259A (en) | 2020-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113462878A (en) * | 2021-07-23 | 2021-10-01 | 北京亿磁电热科技有限公司 | Single-tooth induction quenching process and equipment for large gear |
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Cited By (1)
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|---|---|---|---|---|
| CN113462878A (en) * | 2021-07-23 | 2021-10-01 | 北京亿磁电热科技有限公司 | Single-tooth induction quenching process and equipment for large gear |
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