Shaft mounted bearing lubricating device
OwnerWalter D. Haentjensinventor
Life of this patent
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Abstract
Lubricant for support bearings in a bearing housing on a vertical rotating shaft is supplied by a rotating impeller mounted on the shaft which includes a dip ring extending into an annular oil reservoir to draw oil upward to the impeller. A passageway from the impeller to a space above an uppermost one of the support bearings enables the lubricant to flow over the bearings and back to the rotating impeller for recirculation. A heat exchanger may be included to cool the lubricating liquid.
Claims17
An oil recirculating device for use with bearings on a rotating vertical shaft, comprising:
- means forming an oil reservoir for holding a quantity of oil;
- means for drawing oil from said oil reservoir means, said drawing means a smooth ring extending into oil within said oil reservoir means and mounted coaxially of said vertical shaft to rotate with said rotating shaft;
- means for pressurizing oil drawn from said oil reservoir means, said pressurizing means being mounted above said smooth ring and driven by said rotating shaft;
- means for communicating the pressurized oil to the bearings;
- means for returning oil from the bearings to at least one of said oil reservoir and said pressurizing means
- whereby oil or lubricant is circulated to the bearings during rotation of the shaft.
A lubricant pump for supplying lubricant to bearings mounted within a bearing housing on a vertical axially rotatable shaft, comprising:
- an annular impeller encircling the shaft within the bearing housing and mounted for rotation with the shaft;
- said impeller having a plurality of spaced radially extending slots forming impeller vanes for slinging lubricant outward as said impeller rotates;
- an oil reservoir disposed in the bearing housing into which lubricant flows from the bearings;
- a dip ring mounted on said impeller and extending into said oil reservoir to draw lubricant from said reservoir to said impeller as said impeller rotates;
- a conduit formed to provide communication between said impeller and the bearings;
- and
- a drain between the bearings and said impeller for returning lubricant to said impeller;
- whereby rotation of the shaft causes lubricant to flow from said oil reservoir, past said impeller, through said conduit, and to the bearings.
A bearing lubricating device for vertical shaft pumps, comprising:
- a vertical shaft for rotational movement to operate the pump;
- a bearing housing encircling a portion of said vertical shaft;
- at least one bearing assembly mounted in said bearing housing, said bearing assembly supporting said vertical shaft for rotation;
- an oil reservoir encircling said vertical shaft for holding oil draining from said at least one bearing assembly;
- a vaned impeller mounted for rotation with said vertical shaft between said at least one bearing assembly and said oil reservoir;
- a tapered ring mounted on said vaned impeller and extending into said oil reservoir to feed oil from said oil reservoir to said vaned impeller as said impeller rotates;
- and
- an oil passageway extending from said vaned impeller to above said at least one bearing so that oil from said vaned impeller flows to above said at least one bearing;
- whereby said vaned impeller rotates to drive oil through said oil passageway to lubricate said at least one bearing as said pump shaft rotates.
Dependencies are inferred from the claim text.