Two-Spindle Pump of Single-Flow Construction
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Accused Products
Abstract
The invention relates to a two-spindle screw pump of single-flow construction, comprising a pump housing, which has a pump portion, a bearing portion and a gear portion with a gear chamber, wherein the bearing portion and the pump portion are realized separately from each other characterized in that the gearwheel and the fastening element (and thus the shaft) are mutually rotatable, so that a spacing of the flanks of the feed screws (the flank clearance of the feed screws) is adjustable, that an opening is provided on the gear portion of the pump housing, that the opening is provided with a detachable cover, that the opening is arranged such that the cover is detachable in the mounted state of the screw pump, and that the gear chamber, for the adjustment of the flank clearance of the feed screws, can be reached with the tool necessary for this purpose.
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Citations
18 Claims
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1-8. -8. (canceled)
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9. Two-spindle screw pump of single-flow construction, comprising a pump housing, which has a pump portion, a bearing portion and a gear portion with a gear chamber, wherein the bearing portion and the pump portion are realized separately from each other,
comprising a feed housing part as a component part of the pump portion, in which two shaft-mounted feed screws with flanks are provided, wherein the shafts are mounted in the bearing portion (external bearing) and extend into the gear portion, comprising gearwheels, which are arranged on the shafts in the gear portion and by means of which the shafts are rotatably coupled, and comprising a fastening element, arranged on the shaft in operative connection therewith, for establishing a holding connection between shaft and gearwheel, wherein the fastening element and the gearwheel have corresponding bores, via which, between the gearwheel and the fastening element, a holding connection can be established via a locking element, characterized in that the bores in the fastening element are realized such that the gearwheel and the fastening element (and thus the shaft) are mutually rotatable, so that a spacing of the flanks of the feed screws (the flank clearance of the feed screws) is adjustable, in that an opening is provided on the gear portion of the pump housing, in that the opening is provided with a detachable cover, in that the opening is arranged such that the cover is detachable in the mounted state of the screw pump, and in that the gear chamber, for the adjustment of the flank clearance of the feed screws, can be reached with the tool necessary for this purpose.
Specification