Trenching machine boom assembly

Details Trenching machine boom assembly Trenching machine boom assembly

1988-02-11

1989-01-03

Eickholt, E. H.

Excavating

Peat excavators

337191A, 172119, 172125, 299 64, 299 76, E02F 506

Patent

active

047947080

ABSTRACT:
A trencher machine digging boom assembly having a mounting arrangement for the digging boom wherein the boom includes a boom attaching weldment that is pivotally mounted to a boom pivot casting. The boom pivot casting is rigidly mounted to a trencher frame with a drive motor being mounted to one end of the boom pivot casting and a planetary gearbox being mounted at its opposite end. The planetary gearbox and associated drive components for the digging chain may be disconnected to permit easy and convenient removal of the digging boom for replacing its pivot bearings. Further, the torque reactions of the drive train are maintained within the boom pivot casting and are not transferred to the lift components associated with the digging boom.

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patent: 3754341 (1973-08-01), Caldwell et al.
patent: 4327508 (1982-05-01), Youngers
patent: 4483084 (1984-11-01), Caldwell et al.
patent: 4660306 (1987-04-01), Bruce et al.
patent: 4742627 (1988-05-01), Lindstrom

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