| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to vibrating appliances and may be used in vibrating units that require sine shape of exciting force. Unbalance vibration exciter comprises cylindrical housing to accommodate drive shaft with cantilever unbalance, and spring. One end of said spring is secured to unbalance point that makes its center of gravity while another end is secured on housing, above unbalance axle. It includes also a guide element made up of a barrel with its bottom secured to housing. Distance from axis of rotation to guide element equals that from said axis to center of gravity of unbalance. Note that spring is arranged inside guide element. Coefficient of spring stiffness is selected proceeding from the condition whereat unbalance static moment and moment the spring acts on unbalance. ^ EFFECT: complete compensation of unbalance gravity in starting, hence, improved shape of disturbing force curve. ^ 3 dwg |
