FIELD: mining.
SUBSTANCE: invention relates to drilling. Device mounted in place or suitable for use as downhole assembly vibration tool or in downhole assembly, contains first magnetic assembly, rotating or made with possibility of rotation relative to second magnetic assembly and which with such rotation causes at least substantially axial oscillations and/or reciprocal movement of second magnetic assembly. Making vibrations and/or reciprocal motion magnetic assembly at least substantially at one end or both ends is attached to flexible element and is limited in its vibrations and/or reciprocation by flexible element.
EFFECT: enabling distribution on vibration instrument external housing and/or any attached to mouth and/or bottom-hole tooling force at outlet from compression and extension of flexible element, substantially, in sinusoidal mode.
13 cl, 8 dwg
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