On oscillations of a vibratory jaw crusher with asymmetric interaction of the jaws with the processed medium

Grigory Panovko1 , Alexander Shokhin2 , Ilya Lyan3

1, 2, 3Mechanical Engineering Research Institute of the Russian Academy of Sciences, Moscow, Russia

1Bauman Moscow State Technical University, Moscow, Russia

2Corresponding author

Vibroengineering PROCEDIA, Vol. 25, 2019, p. 83-88. https://doi.org/10.21595/vp.2019.20831
Received 26 May 2019; accepted 5 June 2019; published 25 June 2019

Copyright © 2019 Grigory Panovko, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Abstract.

This paper is devoted to the problem of providing the required synchronous modes of oscillations of a jaw crusher with self-synchronizing inertial vibration exciters. The described mathematical model of the crusher takes into account the mechanical properties of the medium being processed and the possible asymmetry of its contact with the crusher’s working bodies – the jaws. A numerical analysis of synchronous modes of crusher vibrations with different asymmetries of the initial location of the processed medium relative to the jaws is done. It is shown that for given oscillation excitation frequencies, the non-simultaneous contact of the processed medium with the jaws can lead to a change in the types of synchronous vibrations of the jaw crusher.

Keywords: vibratory jaw crusher, oscillations, self-synchronization, unbalance exciter, processed medium influence.

Acknowledgements

The reported study was funded by RFBR according to the research project No. 18-08-01491_a.

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