Roller support for cage sweep mechanism

Details Roller support for cage sweep mechanism Roller support for cage sweep mechanism

1980-03-31

1982-07-06

Hafer, Robert A.

Cutlery

56 146, 308 6R, H01D 4112

Patent

active

043377815

ABSTRACT:
The reciprocating cage sweep mechanism (26) for an axial flow rotary combine is supported by grooved self-lubricating plastic rollers (46) running on a pair of parallel support rods (42, 43). The bottoms of the grooves (81) of the rollers (46) are spaced from the rod surface to permit a squeezing action to occur as deposits of crop material and dust build up on the surface of the rods (42, 43). The squeezing action causes the deposits to be extruded rather than compacted on the rod surface. Thus, the buildup of deposits on the rods (42, 43) are reduced. The rollers (46) are individually supported on the reciprocating cage sweep carriage (41) by nonrotatable shafts (71) each of which has a spiral recess (74) in its cylindrical bearing surface (73). The spiral groove (74) induces egress of dust and other fine particles from between the complementary cylindrical bearing surfaces (78, 73) of the roller (46) and its shaft (71).

REFERENCES:
patent: 2663599 (1953-12-01), Mackay et al.
patent: 2851316 (1958-09-01), Thomson
patent: 3097892 (1963-07-01), Newbury
patent: 3410615 (1968-11-01), Bieber
patent: 3464285 (1969-09-01), McCabe
patent: 4108150 (1978-08-01), Shaver
patent: 4154250 (1979-05-01), Stuber

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