wenxun Zheng
ABSTRACT
In this study, a pneumatic vibrating electromagnetic oscillator for precision seeding is designed to address the shortcomings of mechanical oscillators such as non-amplitude modulation, large noise, homogeneous vibration, and non-energy saving. A control system consisting of a signal generator and a power amplifier drives the vibrations of the shaker and matches the seed plate to the precision seeding. First, the key components of the electromagnetic oscillator are analyzed and the key structural designs and parameters of each component are determined. Then, the vibration effect of the vibrating table was simulated and evaluated by ADAMS, and the spring parameters with the best vibration effect were found. The oscillator vibrations and frequencies were simulated using EDEM, and the optimal vibrational and amplitude parameters were obtained. Proteus and Multisim were used for simulation, the effect is remarkable, and the suction effect of the suction cup was tested in the field, and the ideal vibration parameters were found. The results show that the 4V and 10 Hz vibrating screens are the best for vibration, and the qualified suction rate has been greatly improved to over 95%, with a hole rate of 1.1% and replay rate of 2.5%, achieving the desired results. Shaking tables can effectively increase the eligibility rate, achieve precision seeding of rice, and provide strong support for precision seeding.
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Index Terms
- Design and experimental study of electromagnetic vibration table for pneumatic vibrating precision seeder
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