Device for sealing a ring gear
AssigneeKrupp Polysius AG
InventorHeinz Grachtrup
Life of this patent
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Abstract
A ring gear mounted for rotation and driven by a pinion which dips into an oil bath is provided on each face with a sealing device. Each sealing device has a conical annulus tapering in a direction away from the ring gear and on which a ring is positioned in spaced relation with the gear. There thus is formed between the gear and each ring an annular oil collecting chamber which leads oil carried upwards by the ring gear back into the oil bath.
Claims16
A sealing device for a rotary ring-like member mounted for rotation about a substantially horizontal axis by means of a rotary drive which dips into an oil bath, said device comprising a conical annulus having its large diameter end fixed to said member radially inwardly of its periphery;
- a ring encircling said annulus;
- and locating means engaging said ring and positioning the latter on said annulus at a zone axially spaced from said member, thereby forming an annular oil collecting chamber between said member and said ring.
A sealing device for a toothed, rotary ring gear rotatable about a substantially horizontal axis by means of a toothed pinion in mesh with said gear and which dips into an oil bath, said sealing device comprising a pair of conical annuli one of which has its large diameter end fixed to one side of said gear radially inwardly of its periphery and the other of which has its large diameter end fixed to the opposite side of said gear radially inwardly of its periphery;
- a pair of rings, one of which encircles one of said annuli and the other of which encircles the other of said annuli;
- first locating means engaging one of said rings and positioning the latter on its associated annulus in a position axially spaced from said gear;
- and second locating means engaging the other of said rings and positioning the latter on its associated annulus in a position axially spaced from said gear, said ring forming an annular oil collecting chamber in each side of said gear.
Dependencies are inferred from the claim text.