Hydraulic vibratory pile driver

Details Hydraulic vibratory pile driver Hydraulic vibratory pile driver

1984-02-03

1986-12-02

Schran, Donald R.

Tool driving or impacting

Drive by means reacting to rotating eccentric mass

74 61, 173112, E02D 718

Patent

active

046258116

ABSTRACT:
A vibratory pile driver has a rigid housing, a pair of parallel and horizontally spaced shafts journaled for rotation wholly independently of each other about respective parallel and horizontally spaced axes in the housing, respective generally equally massive and eccentrically mounted weights on the shafts, and respective nonpositive hydraulic drive motors on the housing connected to the shafts for oppositely rotating the shafts and the respective weights. Thus the weights are independently and nonpositively driven and are not mechanically linked together so that the horizontal components of their rotation cancel each other out and the two opposite rotations automatically synchronize themselves with each other.

REFERENCES:
patent: 2420793 (1947-05-01), O'Conner
patent: 3004389 (1961-10-01), Muller
patent: 3312295 (1967-04-01), Bodine, Jr.
patent: 3407670 (1968-10-01), Venanzetti
patent: 3477237 (1969-11-01), Orkney
patent: 3828864 (1974-08-01), Haverkamp et al.
patent: 4135585 (1979-01-01), Wagner

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