VIBRATORY DRIVE FOR MACHINES WITH CIRCULAR VIBRATION OF WORKING MEMBER Russian patent published in 1995 - IPC

FIELD: transportation of loads. SUBSTANCE: vibratory drive has vibrator with unbalanced shaft 2 mounted in bearings in the vibrator housing and connected through resilient coupling 3 with electric motor 4. Housing 1 is secured in the center of gravity of vibration machine working member 5 mounted on stationary frame 7 with the use of flexible supports 6. Electric motor 4 is installed on the same frame 7. Coupling 3 includes a driving half-coupling secured on the shaft of motor 4 and a driven half-coupling secured on unbalanced shaft 2. The half-couplings are interconnected by means of resilient members made, for example, in the form of conveyer belt tags. An additional unbalancing mass is secured on the half-coupling. In case of post-resonance adjustment of the machine this additional unbalanced mass is positioned in phase with unbalanced shaft 2 and in case of its pre-resonance adjustment - in counterphase with shaft 2. EFFECT: improved efficiency. 3 cl, 4 dwg