CN107872905B - Experimental method and experimental platform for induction heating process of shaft parts - Google Patents
Experimental method and experimental platform for induction heating process of shaft parts Download PDFInfo
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- CN107872905B CN107872905B CN201610843609.4A CN201610843609A CN107872905B CN 107872905 B CN107872905 B CN 107872905B CN 201610843609 A CN201610843609 A CN 201610843609A CN 107872905 B CN107872905 B CN 107872905B
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- 230000006698 induction Effects 0.000 title claims abstract description 101
- 238000010438 heat treatment Methods 0.000 title claims abstract description 93
- 238000002474 experimental method Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 41
- 239000000110 cooling liquid Substances 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
-
- 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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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses an induction heating process experiment platform for shaft parts, which comprises a bracket, a variable-size coil, a driving device, a speed changing device, an inner traction wire and an induction heating module, wherein the upper end of the bracket is provided with an upper right inner limit rotating wheel and an upper left inner limit rotating wheel, the lower end of the bracket is provided with a lower left inner limit rotating wheel, the speed changing device connected with the driving device is fixed on a platform base and is close to the lower right of the bracket, the inner traction wire is sequentially wound on an inner driving wheel of the speed changing device, the upper right inner limit rotating wheel, the upper left inner limit rotating wheel and the lower left inner limit rotating wheel, and meanwhile, the inner traction wire drives the shaft parts connected to the inner traction wire to pass through the center of the variable-size coil, and the variable-size coil is connected with the induction heating module. The invention can improve the experimental efficiency of the multi-frequency process, improve the experimental effect of the process, enlarge the flexible application range of the fixed-frequency heuristic process experimental equipment and reduce the investment cost and the maintenance cost of the production equipment.
Description
Technical Field
The invention relates to an induction heating technology, in particular to an experimental method and an experimental platform for an induction heating process of shaft parts.
Background
At present, induction heating is applied to the heat treatment processes of quenching, annealing, tempering and the like of shaft parts, and the wide application of the induction heating process experiment is established on the basis of the process experiment, so that the induction heating process experiment becomes a key link of applying an induction heating technology. The induction heating process experimental equipment applied to the shaft parts has a plurality of defects and limitations in industrial production and application. For example, 1: the prior variable-frequency heating equipment is adopted to realize the multi-frequency process experiment form of shaft parts, and the defects are that: in the process experiment, the frequency of the variable-frequency induction heating equipment can only be changed approximately in transition on a fixed number of frequencies, so that continuous frequency change and adjustment are difficult to realize, the induction heating process is not beneficial to optimization, the process experiment effect is influenced, and the process experiment efficiency is reduced. 2: the prior induction heating equipment with fixed frequency and power is adopted to carry out an attempted process experiment on shaft parts, and the defects are that: in the process experiment, when the frequency or the power cannot meet the heat treatment process requirement of the shaft parts, variable frequency induction heating equipment with other frequency and power ranges is required to be additionally replaced, so that the investment cost and the maintenance cost of the process experiment equipment are increased, and the flexible application of the induction heating process experiment equipment is not facilitated.
Therefore, the existing shaft part variable frequency induction heating process experimental equipment has the defects of low multi-frequency process experimental efficiency, poor flexibility of fixed frequency heuristic process experimental equipment and the like, and no other new induction heating equipment can be replaced.
Disclosure of Invention
The invention aims to provide an experimental method and an experimental platform for an induction heating process of shaft parts, which utilize a copper pipe to wind into induction coils with different diameters and different distances to change the mode of an induction power supply load, and provide a semi-transient state for a principle with different frequencies and different powers of a heating load. The multi-frequency process experimental efficiency can be improved, the process experimental effect is improved, the flexible application range of the fixed-frequency heuristic process experimental equipment is enlarged, and the investment cost and the maintenance cost of the production equipment are reduced.
In order to achieve the aim, the invention adopts the following technical scheme that the experimental platform for the induction heating process of the shaft parts comprises a bracket, a variable-size coil, a driving device, a speed changing device, an inner traction wire and an induction heating module, wherein the upper end of the bracket is provided with an upper right inner limit rotating wheel and an upper left inner limit rotating wheel, the lower end of the bracket is provided with a lower left inner limit rotating wheel, the speed changing device connected with the driving device is fixed on a platform base and is close to the lower right of the bracket, the inner traction wire is sequentially wound on an inner driving wheel, the upper right inner limit rotating wheel, the upper left inner limit rotating wheel and the lower left inner limit rotating wheel of the speed changing device, the inner traction wire drives the shaft parts connected to the inner traction wire to pass through the center of the variable-size coil, and the variable-size coil is connected with the induction heating module.
The variable-size coil is an integral coil with an axial continuous variable diameter; the induction heating module is an induction power supply.
The lower end of the bracket is also provided with a cooling liquid nozzle, and the cooling liquid nozzle is positioned at the rear side below the variable-size coil.
The automatic speed change device comprises a bracket, a speed change device and a temperature sensor, and is characterized by further comprising a real-time control module and an outer traction wire, wherein the upper end of the bracket is further provided with an upper right outer limit rotating wheel and an upper left outer limit rotating wheel, the lower left outer limit rotating wheel is arranged at the lower end of the bracket, the output end of the speed change device further comprises an outer driving wheel, the outer traction wire is sequentially wound on the upper right outer limit rotating wheel, the upper left outer limit rotating wheel, the lower left outer limit rotating wheel and the outer driving wheel, the real-time control module is connected with the temperature sensor through a temperature data wire, the temperature sensor is arranged on the outer traction wire and is at the same height as a shaft part on the inner traction wire, and the outer traction wire is positioned on the whole periphery of the outer traction wire; the induction heating module is connected with the real-time control module through an induction data line.
The real-time control module is connected with the driving device through a driving control line.
In order to achieve the other purpose, the invention adopts the following technical scheme, namely an experimental method for an induction heating process of shaft parts, which comprises the following steps:
the driving device drives the shaft parts to regularly move in the variable-size coil through an inner traction line to realize variable-frequency and variable-power induction heating; when the shaft part moves in the coil, recording temperature numerical value change data;
after induction heating is completed, the inner traction line drives the shaft part to the lower end of the variable-size coil, and the cooling liquid nozzle sprays cooling liquid to the shaft part until the temperature is reduced to the process requirement.
The real-time control module controls the opening or closing of the temperature sensor, the induction heating module, the driving device and the cooling liquid nozzle, and the driving device completes the rotation of the inner driving wheel and the outer driving wheel at the same rotation speed through the speed changing device.
When induction heating, the temperature sensor follows the position of the shaft part movement and transmits the temperature data to the real-time control module in real time, after the induction heating is completed, the real-time control module controls to close the induction heating module, the internal traction line drives the shaft part to the lower end of the variable-size coil, the temperature sensor follows the position of the shaft part movement to the lower end horizontal position of the variable-size coil and transmits the temperature data to the real-time control module, when the temperature is reduced to the process requirement temperature, the real-time control module controls to close the cooling liquid nozzle to stop spraying liquid.
Compared with the prior art, the invention has the following beneficial effects:
1. provides a new experimental method for the induction heating process of the shaft parts, and provides a new method and a new way for the industrial induction heating process experiment of the shaft parts.
2. The method and the experimental platform device are used in combination with the variable-frequency induction heating equipment in the prior art, can realize continuous frequency change and power adjustment, are beneficial to optimizing an induction heating process, improve the experimental effect of the process and improve the experimental efficiency of the process.
3. The method and the experimental platform device are used in combination with the fixed-frequency induction heating equipment in the prior art, can realize continuous frequency conversion and power adjustment in a certain range, reduce the investment cost and maintenance cost of the process experimental equipment, and are beneficial to flexible application of the induction heating process experimental equipment.
4. Compact structure and simple implementation.
Drawings
FIG. 1 is a schematic diagram of an experimental platform structure of an induction heating process of shaft parts;
fig. 2 is a schematic diagram of a local enlarged structure of an experimental platform for an induction heating process of shaft parts.
In the figure: 1. the device comprises a temperature sensor, 2, a temperature data line, 3, an induction heating module, 4, an induction data line, 5, a real-time control module, 6, a driving control line, 7, a left lower outer limit runner, 8, a left lower inner limit runner, 9, a cooling liquid nozzle, 10, a platform base, 11, a driving device, 12, a speed changing device, 13, an outer traction line, 14, an inner traction line, 15, a bracket, 16, a variable-size coil, 17, an upper right inner limit runner, 18, an upper right outer limit runner, 19, an upper left inner limit runner, 20, an upper left outer limit runner, 21, an inner driving wheel, 22 and an outer driving wheel.
Detailed Description
The detailed description and technical content of the present invention are described below with reference to the accompanying drawings, which are provided for reference and description only, and are not intended to limit the present invention.
In order to realize the experimental platform, the variable-size induction coil capable of meeting the requirements of the process experiment is prefabricated according to the frequency and power requirements of the induction heating process of the shaft parts, and the shaft parts are connected in series on an inner traction line and placed on a line station as shown in fig. 1 at the beginning of the process experiment.
According to the experimental platform for the induction heating process of the shaft parts shown in fig. 1-2, the experimental platform comprises a bracket 15, a variable-size coil 16, a driving device 11, a speed changing device 12, an inner traction wire 14 and an induction heating module 3, wherein the upper end of the bracket is provided with an upper right inner limit rotating wheel 17 and an upper left inner limit rotating wheel 19, the lower end of the bracket is provided with a lower left inner limit rotating wheel 8, the speed changing device connected with the driving device is fixed on a platform base and is close to the lower right of the bracket, the inner traction wire is sequentially wound on an inner driving wheel 21 of the speed changing device, the upper right inner limit rotating wheel 17, the upper left inner limit rotating wheel 19 and the lower left inner limit rotating wheel 8, and meanwhile, the inner traction wire is used for driving the shaft parts connected to the inner traction wire to pass through the center of the variable-size coil, and the variable-size coil is connected with the induction heating module. The variable-size coil is an integral coil with an axial continuous variable diameter; the induction heating module 3 is an induction power supply. The lower end of the bracket is also provided with a cooling liquid nozzle 9, and the cooling liquid nozzle is positioned at the rear side below the variable-size coil.
The automatic speed change device comprises a support, a speed change device and a speed change device, and is characterized by further comprising a real-time control module 5 and an outer traction wire 13, wherein the upper end of the support is further provided with an upper right outer limit rotating wheel 18 and an upper left outer limit rotating wheel 20, the lower end of the support is provided with a lower left outer limit rotating wheel 7, the output end of the speed change device further comprises an outer driving wheel 22, the outer traction wire 13 is sequentially wound on the upper right outer limit rotating wheel, the upper left outer limit rotating wheel, the lower left outer limit rotating wheel and the outer driving wheel, the real-time control module 5 is connected with a temperature sensor 1 through a temperature data wire 2, the temperature sensor is arranged on the outer traction wire 13 and is at the same height as a shaft part on the inner traction wire, and the outer traction wire is positioned on the whole periphery of the outer traction wire; the induction heating module 3 is connected with the real-time control module 5 through an induction data line 4. The real-time control module 5 is connected with a driving device 11 through a driving control line 6. The real-time control module is also connected with and controls the cooling liquid nozzle.
The real-time control module is a display controller and can be used after being purchased directly.
A fixed frequency induction heating apparatus incorporating the prior art; scheme one is as follows: an experimental method for an induction heating process of shaft parts comprises the following steps: starting an induction heating module 3 to heat the variable-size coil, wherein the induction heating module 3 is a fixed-frequency induction power supply, and the driving device drives a shaft part to regularly move in the variable-size coil through an internal traction line to realize variable-frequency and variable-power induction heating; when the shaft part moves in the coil, recording temperature numerical value change data; after induction heating is completed, the inner traction line drives the shaft part to the lower end of the variable-size coil, and the cooling liquid nozzle sprays cooling liquid to the shaft part until the temperature is reduced to the process requirement.
An induction heating device incorporating a variable frequency of the prior art; scheme II is as follows: an experimental method for an induction heating process of shaft parts comprises the following steps: the induction heating module 3 is started to heat the variable-size coil, the induction heating module 3 is a variable-frequency induction power supply, and the driving device drives the shaft parts to regularly move in the variable-size coil through an internal traction line to realize variable-frequency and variable-power induction heating; when the shaft part moves in the coil, recording temperature numerical value change data; after induction heating is completed, the inner traction line drives the shaft part to the lower end of the variable-size coil, and the cooling liquid nozzle sprays cooling liquid to the shaft part until the temperature is reduced to the process requirement.
A fixed frequency induction heating apparatus incorporating the prior art; scheme three is as follows:
the induction heating module 3 is a fixed frequency induction power supply, the real-time control module 5 controls to start the temperature sensor 1, then the real-time control module 5 starts to manufacture the induction heating module 3, meanwhile, the real-time control module 5 controls to start the driving device 11, the driving device 11 finishes the same rotation speed rotation of the inner driving wheel 21 and the outer driving wheel 22 through the speed change device 12, according to the frequency conversion and power change requirements of a process experiment, the inner traction wire 14 drives the shaft part to regularly move in the variable-size coil 16 to realize the induction heating of the frequency conversion and the power change, the temperature sensor 1 follows the moving position of the shaft part and transmits the temperature data to the real-time control module 5 in real time, after the induction heating is finished, the real-time control module 5 controls to close the induction heating module 3, the inner traction wire 14 drives the shaft part to the lower end of the variable-size coil 16, the real-time control module 5 controls the cooling liquid nozzle 9 to spray cooling liquid, the temperature sensor 1 follows the moving position of the shaft part to the lower end horizontal position of the variable-size coil 16 and transmits the temperature data to the real-time control module 5, and the temperature control module 5 stops the liquid spraying after the temperature drops to the process requirement temperature.
An induction heating device incorporating a variable frequency of the prior art; scheme four is as follows:
the induction heating module 3 is a variable frequency induction power supply, the real-time control module 5 controls to start the temperature sensor 1, then the real-time control module 5 starts to manufacture the induction heating module 3, according to the process experiment requirement, the real-time control module 5 finishes adjusting the output frequency and power of the induction heating module 3, the real-time control module 5 controls to start the driving device 11, the driving device 11 finishes the rotation of the inner driving wheel 21 and the outer driving wheel 22 at the same rotation speed through the speed change device 12, according to the process experiment requirement on variable frequency and variable power, the inner traction wire 14 drives the shaft part to regularly move in the variable-size coil 16 to realize variable frequency and variable power induction heating, the temperature sensor 1 follows the moving position of the shaft part and transmits temperature data to the real-time control module 5 in real time, and in the process experiment process, the output frequency and power of the induction heating module 3 can be adjusted through the real-time control module 5 according to the process requirement. After the induction heating is finished, the real-time control module 5 controls to close the induction heating module 3, the inner traction wire 14 drives the shaft part to the lower end of the variable-size coil 16, the real-time control module 5 controls the cooling liquid nozzle 9 to spray cooling liquid, the temperature sensor 1 follows the moving position of the shaft part to the horizontal position of the lower end of the variable-size coil 16 and transmits temperature data to the real-time control module 5, the real-time control module 5 controls to close the cooling liquid nozzle to stop spraying liquid when the temperature is reduced to the process required temperature, and the real-time control module 5 controls the driving device 11 and the temperature sensor 1.
The method and the experimental platform are more beneficial to the implementation of the induction heating process experiment of the shaft parts, effectively improve the heat treatment effect, improve the heat treatment efficiency, enlarge the flexible production capacity of the equipment and reduce the investment cost and the maintenance cost of the production equipment. The invention has wide application prospect in the technical field of shaft part induction heating process experiments.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the invention, but rather to limit the scope of the invention to the equivalents of the claims to which the invention pertains.
Claims (2)
1. The experimental platform for the induction heating process of the shaft parts is characterized by comprising a support, a variable-size coil, a driving device, a speed changing device, an inner traction wire and an induction heating module, wherein the upper end of the support is provided with an upper right inner limit rotating wheel and an upper left inner limit rotating wheel, the lower end of the support is provided with a lower left inner limit rotating wheel, the speed changing device connected with the driving device is fixed on a platform base and is close to the lower right of the support, the inner traction wire is sequentially wound on an inner driving wheel of the speed changing device, the upper right inner limit rotating wheel, the upper left inner limit rotating wheel and the lower left inner limit rotating wheel, and meanwhile, the inner traction wire is used for driving the shaft parts connected to the inner traction wire to pass through the center of the variable-size coil; the variable-size coil is an integral coil with an axial continuous variable diameter; the induction heating module is a fixed-frequency induction power supply; the lower end of the bracket is also provided with a cooling liquid nozzle which is positioned at the rear side below the variable-size coil;
the automatic speed change device comprises a bracket, a speed change device and a temperature sensor, and is characterized by further comprising a real-time control module and an outer traction wire, wherein the upper end of the bracket is further provided with an upper right outer limit rotating wheel and an upper left outer limit rotating wheel, the lower left outer limit rotating wheel is arranged at the lower end of the bracket, the output end of the speed change device further comprises an outer driving wheel, the outer traction wire is sequentially wound on the upper right outer limit rotating wheel, the upper left outer limit rotating wheel, the lower left outer limit rotating wheel and the outer driving wheel, the real-time control module is connected with the temperature sensor through a temperature data wire, the temperature sensor is arranged on the outer traction wire and is at the same height as a shaft part on the inner traction wire, and the outer traction wire is positioned on the whole periphery of the outer traction wire; the induction heating module is connected with the real-time control module through an induction data line; the real-time control module is connected with the driving device through a driving control line; the driving device drives the shaft parts to regularly move in the variable-size coil through the internal traction line so as to realize variable-frequency and variable-power induction heating.
2. An experimental method adopting the experimental platform for the induction heating process of the shaft parts according to claim 1, which comprises the following steps:
the driving device drives the shaft parts to regularly move in the variable-size coil through an inner traction line to realize variable-frequency and variable-power induction heating; when the shaft part moves in the coil, recording temperature numerical value change data;
after induction heating is completed, the inner traction line drives the shaft part to the lower end of the variable-size coil, and the cooling liquid nozzle sprays cooling liquid to the shaft part until the temperature is reduced to the process requirement;
the real-time control module controls the opening or closing of the temperature sensor, the induction heating module, the driving device and the cooling liquid nozzle, and the driving device completes the rotation of the inner driving wheel and the outer driving wheel at the same rotation speed through the speed changing device;
when induction heating, the temperature sensor follows the position of the shaft part movement and transmits the temperature data to the real-time control module in real time, after the induction heating is completed, the real-time control module controls to close the induction heating module, the internal traction line drives the shaft part to the lower end of the variable-size coil, the temperature sensor follows the position of the shaft part movement to the lower end horizontal position of the variable-size coil and transmits the temperature data to the real-time control module, when the temperature is reduced to the process requirement temperature, the real-time control module controls to close the cooling liquid nozzle to stop spraying liquid.
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CN112475683B (en) * | 2020-11-24 | 2023-02-21 | 中车大连机车车辆有限公司 | Device and method for preheating circumferential weld joint and heating and slow cooling |
CN113106447B (en) * | 2021-05-10 | 2023-10-03 | 中国石油大学(华东) | Variable-frequency induction gradient cladding device and method for shaft parts |
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