Vibratory mechanism for a compaction roller

Details Vibratory mechanism for a compaction roller Vibratory mechanism for a compaction roller

1989-04-24

1990-05-22

Massie, Jerome W.

Road structure, process, or apparatus

Apparatus

Means to agitate material

404122, 404127, 404132, E01C 1926

Patent

active

049272896

ABSTRACT:
A compaction apparatus including a pair of frames. A compaction drum is mounted for rotation on a first of the frames and resilient isolation mounts interconnect the two frames. A vibratory unit is mounted on the first frme and includes pair of eccentric weights arranged so that vertical vibratory forces generated by the weights are added, while fore-and-aft vibratory forces are cancelled. The isolation mounts are at different distances on opposite sides of a vertical plane passing through the axis of the drum, so that the vertical vibratory forces acting through the two isolation mounts produce unequal moments tending to rotate the drum and subject the soil to a shear-type action.

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patent: 3814531 (1974-06-01), Carnahan et al.
patent: 4610567 (1986-09-01), Hosking
patent: 4647247 (1987-03-01), Sandstrom
patent: 4732507 (1988-03-01), Artzberger

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