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 h

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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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[0024] in Figure 1 to Figure 4 As shown in the schematic diagram of the present invention, the present invention simulates the dual-frequency induction heating process of bevel gears. Under the premise of ensuring that it has little effect on the research target, the following assumptions and processing are made for the simulation process: (1) Umbrella The gear density remains unchanged; (2) In the process of temperature field analysis, the temperature changes of induction coils and air are not considered: induction coils are made of copper material, with low resistance, so the resistance heating effect is small, and the induction heating time is extremely short. Cooling water is introduced 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 heating the bevel gear using the "tooth-shaped" induction coil, it is mainly to analyze the effect of dual-frequency induction heating on the two teeth. Heating e...

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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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