Vibratory mechanism
AssigneeCaterpillar Paving Products Inc.
InventorsDonald J. Swanson, Dean R. Potts, Gregory H. Dubay, Thomas J. Suelflow
Life of this patent
Estimating the term…
Abstract
A vibratory mechanism 26 is provided for a compacting work machine 10. The vibratory mechanism 26 includes a first/outer eccentric weight 50 and a second/inner eccentric weight 80. The second weight 80 has a cavity 88 with a movable mass 90 that when rotated in a first direction 124 opposes the first eccentric weight 50 and when rotated in a second direction 126 the movable mass 90 combines with the first eccentric 50. The second eccentric weight 80 is also manually indexable relative to the first eccentric 50 to a plurality of distinct positions giving a plurality of different amplitude vibratory impact forces when rotated in either of the first and second directions 124,126.
Claims20
A vibratory mechanism comprising:
- a housing supported within a compacting body;
- a first eccentric weight positioned with said housing and having a first and a second stub shaft, the first and the second stub shaft being rotatably supported by a pair of bearings;
- a second eccentric weight being coaxially rotatably supported on a shaft positioned within said first eccentric weight;
- a movable mass being contained within a hollow cavity in said second eccentric weight;
- an adjustment shaft extending outward from said housing and being coaxially positioned within said first stub shaft and being operatively connected to said first and second eccentric weights for indexing said second eccentric weight relative to said first eccentric weight;
- and
- a motor connected with said second stub shaft and rotatable in a first and a second direction.
A work machine comprising:
- a main frame;
- an engine being supported by the main frame;
- a pump operatively connected to the engine;
- a fluid motor operatively connected to said pump, said fluid motor being rotatable in a first and a second direction;
- at least one roller drum being rotatably connected to the main frame of the work machine;
- a vibratory mechanism connected to said fluid motor and rotatably supported within a housing, said housing being concentrically positioned within said at least one roller drum and having;
- a first eccentric weight positioned within said housing and having a first and a second stub shaft, the first and the second stub shaft being rotatably supported by a pair of bearings;
- a second eccentric weight being coaxially rotatably supported on a shaft positioned within said first eccentric weight;
- a movable mass being contained within a hollow cavity in said second eccentric weight;
- and
- an adjustment shaft extending outward from said housing and being coaxially positioned within said first stub shaft and being operatively connected to said first and second eccentric weights for indexing said second eccentric weight relative to said first eccentric weight.
Dependencies are inferred from the claim text.