| 摘要 |
FIELD: vibratory equipment. ^ SUBSTANCE: invention relates to controllable adjustable electromagnetical vibrators (vibration exciters) used in construction, material and other industries. Invention is aimed at provision of reliable and stable operation of controllable unbalance weight unit of vibrator. According to invention, permanent magnets and ac generator windings are introduced into magnetic system of controllable unbalance weight unit. Generator windings are connected to controlled energy receiver. Permanent magnets are installed on movable unbalance weight. With unbalance weights rotating, permanent magnets hold movable and fixed unbalance weights in moved together state. Fixed generator winding secured on housing of unbalance weight unit is arranged in air gap of permanent magnets. Load for generator windings is controlled power receiver which can be provided with adjustable active and reactive (frequency-dependent) elements. ^ EFFECT: simplified design, provision o quick action at setting of movable unbalance weight through required angle. ^ 9 cl, 3 dwg |
