VIBRATION SOURCE Russian patent published in 2008 - IPC B06B1/16 

FIELD: mechanical engineering.

SUBSTANCE: vibration source comprises even number of members provided with driving shafts mounted in bearings. The shafts are connected with unbalances provided with the mechanisms for moving the unbalances in radial direction. Each member of the vibration source is made of two same unbalances shifted by 90° on each shaft. Each unbalance of the members is provided with a groove for its movement with respect to the square shaft. The bottom of the hydraulic cylinder is connected with the shaft for permitting movement inside unbalance connected with the piston via the rod of the hydraulic cylinder. The spaces formed by the hydraulic cylinders are interconnected through the pipe provided with the controlled throttle. The minimum radii of rotation of the center masses of the shafts are initially shifted. All bottom spaces of the unbalances are interconnected through the pipelines via the centers of the driving shafts. Both of the shafts of the members are interconnected through the hollow flexible shaft filled with a liquid. The chambers of unbalances mounted from the opposite side of the shafts and hydraulic cylinders are pressure-tight and filled with high-pressure air.

EFFECT: enhanced reliability and efficiency.

3 dwg