ELECTROMAGNETIC VIBRATION EXCITER Russian patent published in 2009 - IPC B06B1/04 

FIELD: electrical engineering.

SUBSTANCE: present invention relates to vibration engineering. The proposed device has an electromagnet, a vibration exciter armature and a stator casing, joined by an elastic system, consisting of an extension-compression spring. The extension-compression spring is in form of a bushing, the middle part of which is cut open by a through helical groove. The groove is made such that, the opening does not reach the ends of the bushing, forming non-operating coil-flanges at the edges, to which are attached the armature of the vibration exciter and the stator casing. The elastic system is made on one extension-compression spring. The core of the electromagnet is fixed to the stator casing. The electromagnet armature is fixed to the armature of the vibration exciter. Adjustment loads are attached to the armature of the vibration exciter. The electromagnet is put inside the extension-compression spring, which can be cylindrical and profiled as well.

EFFECT: simple design of the device.

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