VIBROSEISMIC SOURCE Russian patent published in 2011 - IPC B06B1/16 G01V1/153 

FIELD: process engineering.

SUBSTANCE: invention relates to vibroseismic equipment and may be used to generate high-power low-frequency multi-wave oscillations. Proposed device comprises M power radiating cylindrical elements comprising outer power radiating cylinder, flexible intermediate cylinder and inner cylinder. Inner power cylinder is connected with outer power radiating cylinder via hydraulic gaps and flexible sections of intermediate power cylinder in transverse direction. Outer power radiating cylinder has lengthwise and crosswise stiffness ribs on its outer surface. Every outer radiating cylinder is provided with N unbalance chambers with power bearing supports accommodating adjustable unbalance device. Every unbalance device has transverse cutout with two cavities. Said cutout accommodates square section of shaft with unbalance device maximum and minimum travel limiters. Said limiters are made from hydraulic cylinders and arranged on sides of unbalance device. Shaft of every unbalance device rests on posts rigidly connected with inner power cylinder. All M power radiating elements are laid in soil to required depth. Pressure plate connected with outer radiating cylinder laid atop soil. Sets of hydraulic cylinders with their pistons connected with anchor piles are arranged on said pressure plates. Power radiating cylinders are arranged in line or in parallel. All shafts of unbalance devices are connected with motors with frequency adjustment and common synchronous in-phase control.

EFFECT: higher reliability and efficiency.

2 dwg