| 摘要 |
A hydraulic vibration exciter has hydro-accumulator, pump-pulser and drive hydro-cylinder. Pump-pulser is arranged as body with cylinders placed in circle, with pistons as two same symmetrical groups in which over-piston spaces of one group of cylinders are connected to each other by cavity connected by channel to over-piston space of drive hydro-cylinder and over-piston spaces of the second group are as well connected to each other with cavity connected by channel to under-piston space of drive hydro-cylinder. At that the pistons of pump-pulser are with con-rods connected to support disc that at center by means of universal hinge is fixed on the body of pump-pulser and through roll bearing it rests on inclined surface of axial eccentric installed in rotary support and connected to rotor of drive electric motor, at that over-piston spaces of each group of cylinders are equipped with system of feeding with liquid from hydro-accumulator. |
