Research into excitation of dual frequency vibrational-rotational vibrations of screen duct by ball-type auto-balancer
Keywords:vibration exciter, dual frequency vibrations, 3D simulation, unbalanced mass, resonance vibrator, auto-balancer, screen
The 3D model of the screen stand with the vibrational-rotational duct motion was developed. The ball-type auto-balancer, which makes it possible to create the two-frequency vibrations, is used as the vibration exciter. The main parameters, which influence the stability of the dual frequency vibrations, were defined after adjusting and testing the model. It was established that the ranges of the dual frequency vibrations are relatively large, which makes it possible to change the characteristics of vibrations with a change in the parameters from these ranges.
An increase in the summary mass of the spheres increases the amplitude of slow vibrations of the duct masses in direct proportion. This increases in direct proportion the vibration energy directed toward the execution of the main technical process.
An increase in the unbalanced mass on the auto-balancer case increases the amplitude of rapid vibrations of the duct masses center in direct proportion.
It was established that an increase in the rotation frequency of the rotor increases the amplitude of the rapid vibration speeds of the duct in direct proportion. This increases the vibration energy directed toward the duct self-cleaning and the change through the vibrations of the mechanical properties of the workable material in proportion to the square of rotation frequency of the rotor.
The simulation showed that the auto-balancer works as two separate vibration exciters. In the first one, the spheres rotate practically evenly with the resonance frequency of the duct vibrations, at this, independent of its loads, the spheres automatically adjust to this frequency, by which they excite the slow resonance duct vibrations (12 Hz) with a large amplitude. In the second one, the mass on the AB case excites the rapid duct vibrations with (any) existing non-resonant rotation frequency of the rotor.
Vlasova, V. V. (2007). Mineral processing. Irkutsk, 159.
Piven, V. V., Umanskaya, O. L. (2013). Classification of vibration separating machines. Modern scientific researches and innovations, 3. Available at: http://web.snauka.ru/en/issues/2013/03/22592
Hurskyi, V. M., Kuzo, I. V., Lanets, O. S. (2010). Providing dual–frequency resonant modes of vibration table compaction concrete mixes. Proceedings of the National University "Lviv Polytechnic". Serie "Dynamics, durability and design of machines and devices", 678, 44–51.
Lapshin, E. S., Shevchenko, A. I. (2012). Analysis of the condition of development vibrating screening at dehydration of mineral raw materials. Geotechnical Mechanics, 101, 84–104.
Hou, Y., Gao, J., Liang, J. (2012). Dynamics Simulation for Solid Conveyance of Dual-Frequency Vibrating Screen. Advanced Science Letters, 15 (1), 391–395. doi: 10.1166/asl.2012.4149
Bukin, S. L., Sergeyev, P. V., Bukina, A. S. (2014). Comparison of results of process of crushing in a vibration mill with harmonious and biharmonic operating modes. Quality of mineral raw materials, 2014, 149–159.
Antipov, V. I., Dentsov, N. N., Koshelev, A. V. (2014). Dynamics of the parametrically excited vibrating machine with isotropic elastic system. Basic research, 8-5, 1037–1042.
Bukin, S. L., Kondrakhin, V. P., Belovodsky, V. N., Khomenko, V. N. (2014). Excitation of polyharmonic vibrations in single-body vibration machine with inertia drive and elastic clutch. Journal of Mining Science, 50 (1), 101–107. doi: 10.1134/s1062739114010153
Hou, Y. J., Fang, P., Liu, Q. Y., Liang, J. (2012). Motion Simulation of Dual-Frequency Vibrating Screen. Applied Mechanics and Materials, 204-208, 4916–4921. doi: 10.4028/www.scientific.net/amm.204-208.4916
Filimonikhin, G. B., Yatsun, V. V. (2015). Method of excitation of dual frequency vibrations by passive autobalancers. Eastern-European Journal of Enterprise Technologies, 4 (7 (76)), 9–14. doi: 10.15587/1729-4061.2015.47116
Filimonikhin, G. B., Yatsun, V. V. (2015). Experimental research of dual–frequency vertical vibrations platform excited ball autobalancing. Vibrations in engineering and technologies, 4 (80), 90–95.
Filimonikhin, G. B., Yatsun, V. V. (2016). Investigation of the process of excitation of dual-frequency vibrations by ball auto-balancer of GIL 42 screen. Eastern-European Journal of Enterprise Technologies, 1 (7 (79)), 17–23. doi: 10.15587/1729-4061.2016.59881
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Copyright (c) 2016 Геннадий Борисович Филимонихин, Volodymyr Yatsun, Kostyantyn Dumenko
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