Trencher digging chain sprocket drive

Details Trencher digging chain sprocket drive Trencher digging chain sprocket drive

1980-12-08

1982-05-04

Burr, Edgar S.

Excavating

Peat excavators

37191A, 172119, 172125, 299 36, E02F 506

Patent

active

043275087

ABSTRACT:
A drive train assembly is provided for the digging chain drive sprocket and spoil dispersing auger of a hydrostatically operated trenching machine. The drive assembly is totally enclosed and includes a hydraulic motor, a rotatable drive sprocket-hub subassembly, a planetary gearbox, and a boom lift casting. The planetary gearbox and hydraulic motor are mounted on opposite ends of the boom lift casting, and they are drivingly interconnected by a drive shaft that passes through the casting. The planetary gearbox includes a housing for rotatably mounting the spoil dispersing auger such that the gearbox housing and auger act as a heat sink to dissipate heat generated by the driven gears within the gearbox. The digging chain drive sprocket subassembly is rotatably mounted on the boom lift casting adjacent the planetary gearbox, and it is connected to the gearbox whereby the digging chain drive sprocket and auger are driven in unison by the hydraulic motor.

REFERENCES:
patent: 1143897 (1915-06-01), Flexner et al.
patent: 3044194 (1962-07-01), Balkheimer
patent: 3057088 (1962-10-01), George et al.
patent: 3668794 (1972-06-01), Marquardt et al.

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