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| Non-sinusoidal oscillation technology of continuous casting mold driven by single servo motor |
| ZHOU Bo1, YU Jintao2, TIAN Jiyong3, ZHOU Chao3,4, ZHANG Xingzhong3, FANG Yiming3 |
1. Hunan Valin Lianyuan Iron and Steel Co., Ltd., Loudi 417009,Hunan,China;
2. China National Heavy Machinery Research Institute Co., Ltd.,Xi′an 710018,Shaanxi,China;
3. National Engineering Research Center for Equipment and Technology of Cold Rolled Strip,Yanshan University,Qinhuangdao 066004, Hebei,China;
4. Ocean College,Hebei Agricultural University,Qinhuangdao 066003, Hebei,China |
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Abstract Aiming at the problems of complex system, expensive equipment and high maintenance cost of non-sinusoidal oscillation device for mold driven by hydraulic servo cylinder, a new type of mold non-sinusoidal oscillation technology with eccentric shaft linkage driven by servo motor was proposed. Firstly, the working principle to realize the non-sinusoidal oscillation technology was described. Secondly, the method for determining the rotation rule of servo motor was given. And for a non-sinusoidal oscillation waveform function, the servo motor rotation speed formula was given. Finally, on the prototype machine, the experiments were carried out. The results show that the servo motor-eccentric shaft-linkage system can realize the non-sinusoidal oscillation waveform precisely, and the equipment runs smoothly. The technology of non-sinusoidal oscillation driven by servo motor-eccentric shaft-linkage system has many advantages, such as lower equipment cost and maintenance cost, the long maintenance cycle, and equipment moving smoothly. This technology can be adapted to high casting speed and helps to promote the slab surface quality. It has the market prospect and the value of popularization.
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Received: 11 January 2023
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2023, Vol. 42 
