| 摘要 |
The present invention provides a rotary feeder system having a rotor housing with an intake opening and means for discharging material spaced apart side walls. A rotor is positioned with its radially extending blades disposed within the rotor housing and its two ends of its shaft each extending through an aperture in one of the side walls. The shaft bearing and interconnection to the rotating means are each disposed outwards of the rotor housing and the apertures are sealed about the rotor shaft by a sealing assembly comprising a washer, a seal having a first and second ring wherein the second ring extends inward beyond the inner circumference of the first, said ring merging into a flange pressing upon said washer, and a retaining plate which bears against the second ring, tightening it against the washer. The washer and second ring of the seal are preferably formed of tetrafluoro-ethylene resin, and all joints between components within the rotor housing are welded to fill any crevices. The present invention also provides a rotary feeder wherein the gear shaft of the drive is received in a bore within the rotor shaft and these two shafts are precisely aligned by an alignment pin that is lodged through a bore in these shafts when the bores of the separate shafts are properly aligned, which permits the feeder to be disassembled for cleaning and then reassembled without resetting tolerances.
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