ADJUSTABLE ECCENTRIC VIBRATION EXCITER Russian patent published in 2004 - IPC

FIELD: vibration technique; low frequency exciters.

SUBSTANCE: the invention is dealt with the field of vibration technique, in particular, with low frequency exciters. The technical result is an increased reliability of the vibration exciter at the expense of simplification of its design. For reaching the given result inside the exciter shaft or outside it there is a hydraulic cylinder press-fitted perpendicularly to its axis. The hydraulic cylinder rod both ends are linked with the inner surface of the eccentric. Both cavities of the hydraulic cylinder are filled in with a liquid and connected to each other in their extreme positions by a flexible pipeline. On the outer surface of the eccentric there is a press-fitted an inner racer of a power bearing, and an outer racer of the same bearing through a traction-pusher and a movable plunger is connected to an inertial mass of the vibration exciter.

EFFECT: the invention ensures an increased reliability of the vibration exciter at the expense of simplification of its design.

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