Headshaft
AssigneeEvoqua Water Technologies LLC
InventorWilliam H. Selle
Life of this patent
Estimating the term…
Abstract
Disclosed are apparatus and methods for treating wastewater. In one example there is provided a wastewater treatment system. The wastewater treatment system comprises a settling basin having a first sidewall and a second sidewall, a first headshaft mount disposed on the first sidewall, a second headshaft mount disposed on the second sidewall, a headshaft comprising a shaft extending between and engaging the first headshaft mount and the second headshaft mount and including a bull sprocket and a collector headshaft sprocket.
Claims17
A settling basin of a wastewater treatment system, the settling basin comprising:
- a first sidewall and a second sidewall;
- a first headshaft mount disposed on the first sidewall;
- a second headshaft mount disposed on the second sidewall;
- a single piece headshaft including a composite shaft extending between and engaging the first headshaft mount and the second headshaft mount, a journal bearing disposed within the shaft proximate a first end thereof, and a key slot defined in the shaft, the key slot extending only partially into the journal bearing and extending between a bull sprocket and a collector headshaft sprocket mounted on the shaft;
- and
- a single key element configured to be retained in the key slot and to secure both the bull sprocket and the collector headshaft sprocket to the headshaft.
A headshaft for a settling basin of a wastewater treatment system, the headshaft comprising a single piece shaft formed of a composite material and including a first end and a second end, the first end configured to engage a headshaft mount disposed on a first sidewall of the settling basin, the second end configured to engage a headshaft mount disposed on a second sidewall of the settling basin, the headshaft further comprising a journal bearing disposed within the shaft proximate the first end a key slot defined in the shaft, the key slot extending only partially into the first journal bearing and extending between a bull sprocket and a collector headshaft sprocket mounted on the shaft, and a single key element configured to be retained in the key slot and to secure both the bull sprocket and the collector headshaft sprocket to the headshaft.
A method of facilitating installation of a headshaft in a settling basin of a wastewater treatment system, the method comprising:
- measuring the width of the settling basin;
- selecting a headshaft having a length appropriate for mounting within the width of the settling basin;
- providing the headshaft including a single piece shaft formed of a composite material and including a first end and a second end, the first end configured to engage a headshaft mount disposed on a first sidewall of the settling basin, the second end configured to engage a headshaft mount disposed on a second sidewall of the settling basin, the headshaft further comprising a journal bearing disposed within the shaft proximate the first end a key slot defined in the shaft, the key slot extending only partially into the first journal bearing and extending between a space for mounting a bull sprocket and a space for mounting a collector headshaft on the shaft, and a single key element configured to be retained in the key slot and to secure both the bull sprocket and the collector headshaft sprocket to the headshaft.
Dependencies are inferred from the claim text.