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A numerical simulation method of bevel gear dual-frequency piecewise cyclic induction heating

A high-frequency induction heating and induction heating technology is applied in the field of heat treatment to achieve good heating effect and improve heating uniformity.

Active Publication Date: 2018-12-07
YANSHAN UNIV
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Problems solved by technology

At present, there are few researches on the numerical simulation analysis of dual-frequency induction heating. The existing simulation method of simultaneous dual-frequency induction heating is to designate the simple harmonic load as a load function with time history, so as to perform transient dynamic analysis; the existing ones The asynchronous dual-frequency induction heating simulation method is to carry out medium-frequency induction heating first, and then carry out high-frequency induction heating after the end

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  • A numerical simulation method of bevel gear dual-frequency piecewise cyclic induction heating
  • A numerical simulation method of bevel gear dual-frequency piecewise cyclic induction heating
  • A numerical simulation method of bevel gear dual-frequency piecewise cyclic induction heating

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Embodiment Construction

[0024] exist Figure 1 to Figure 4 In the schematic diagram of the present invention shown, the present invention simulates the bevel gear dual-frequency induction heating process, and under the premise of ensuring little influence on the research target, the following assumptions and treatments are made to the simulation process: (1) bevel gear The gear density remains unchanged; (2) In the process of temperature field analysis, the temperature changes of the induction coil and air are not considered: the induction coil is made of copper material, and the resistance is small, so the thermal influence of the resistance is small, and the induction heating time is extremely short. Cooling water is passed into the coil, and the heat change on the coil has little effect on the heating of the workpiece, which can be ignored; (3) When using the "tooth-shaped" induction coil to heat the bevel gear, it is mainly to analyze the effect of dual-frequency induction heating on the gap betwe...

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Abstract

A numerical simulation method of bevel gear dual-frequency piecewise cyclic induction heating comprise the following steps: step 1, determining model parameters; step 2, creating a geometric model; step 3, calculating intermediate frequency induction heating; step 4, calculating high-frequency induction heating; step 5, setting a dual-frequency induction heating process. The medium and high frequency dual-frequency induction heating is simulated, the APDL program is compiled by using a DO cycle for three times, the sectional cycle heating of dual frequency is realized, and the heating uniformity is improved with the increase of cycle times. The physical and technological parameters can be modified according to the actual heating conditions, and the heating cycle times and time ratios of bevel gears with different sizes and materials can be matched to achieve better heating effect.

Description

technical field [0001] The invention relates to the field of heat treatment, in particular to a numerical simulation method for dual-frequency segmental cycle induction heating of bevel gears. Background technique [0002] As an important part of mechanical transmission, bevel gears have surface contact fatigue strength and wear resistance that affect normal service and working life. Using electromagnetic induction technology to heat the surface of the bevel gear has the characteristics of fast, high efficiency and energy saving. However, due to the complexity of the tooth surface of the bevel gear, there is a tip effect during induction heating, and it is difficult to harden the root and top of the tooth at the same time. Using dual-frequency current to heat the bevel gear can effectively improve the distribution uniformity of the surface hardening layer of the bevel gear after heat treatment. [0003] Dual-frequency induction heating involves a complex multi-field couplin...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20Y02P10/25
Inventor 韩毅肖瑶
Owner YANSHAN UNIV
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