AUTOMATIC SUPPRESSION OF MIXER-GRINDER VIBRATIONS Russian patent published in 2015 - IPC B02C25/00 B02C17/00 G01M1/38 

FIELD: machine building.

SUBSTANCE: programmable controller 27 is used to collect the data on vibration magnitude. Said controller effects three positions fixed position adjustment. Here, occurs the actuation of one of two electromagnetic couplings 25 and displacement of extra counterweight 17 in direction subject to control effects. Note here that claimed process is implanted by open principal, while said controller 27 effects three-position adjustment with adaptation of the extreme positions. Medium position is fixed and tuned to the load. Note also that at the fall of controlled magnitude beyond preset insensitivity zone for idle extreme position, at the current moment, adjustment is effected toward said medium position. To realise the extreme position magnitudes, control effects are generated as PDM pulses or different relative duration fed after amplification to the first or second electromagnetic couplings 25. Generation is executed to preset threshold magnitudes whereat it becomes constant. Note here that at detection of adjustable magnitude in said insensitivity zone, generation of said pulses is terminated.

EFFECT: longer life, electric power saving.

2 dwg