| 摘要 |
FIELD: electrical engineering. ^ SUBSTANCE: present invention relates to vibration engineering. The device has an electromagnet, an electromagnet armature and additional loads. The electromagnet is rigidly fixed to the stator part of the vibrator. The electromagnet armature and additional loads are rigidly fixed to the plate of the armature part of the vibrator. The stator and armature parts are joined to each other by two sets of helical springs, tied up in pairs using tension bolts. One end of the tension bolts is joined to the stator part, and the other is bordered by flanges supporting the springs. The plate of the armature part is clamped between springs with possibility of oscillating along the axes of the springs without separation from their ends. The electromagnet is connected to a device with controlled power supply at constant frequency of current. The vibrator is made with possibility of connection to the working component of a vibration machine and vibration effect on the working component in resonance oscillation mode of a dual-mass oscillating system. The electromagnet is made in form of a solenoid with possibility of oscillation of the armature part about the stator part with amplitude of not less than 4 mm. The armature enters the solenoid at a certain distance. The optimum value of this distance is determined experimentally depending on the chosen overall spring constant of the springs and mass of the armature part. ^ EFFECT: increased amplitude of oscillation of the armature part of the vibrator about its stator part. ^ 1 dwg |
