Chambered vane impeller molten metal pump
First Claim
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1. A molten metal pump comprising:
- a molten metal inlet and outlet;
drive motor means and motor mount;
an impeller shaft and coupling connecting the impeller shaft to the drive motor means;
a base and supports connecting said motor mount to said base;
an impeller on said impeller shaft;
wherein the motor mount supports the drive motor means and wherein the impeller shaft is supported by a bearing in said base;
tapered sockets on said motor mount;
tapered ends on said supports fitting in said tapered sockets on said motor mount and pin means releasably pinning said supports to said motor mount.
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Abstract
The invention is a chambered vane impeller molten metal pump comprising a drive means, a motor mount, a coupling with a taper facilitating shaft removal, a shaft with a tapered top and a bottom with dovetail mating grooves for accepting impeller vanes, a bearing supporting the shaft, tapered support sockets, supports comprising a tapered end, an aperture, and groove, a laminated base, and a fabricated chambered vane impeller. The drive can be a motor with a gear box where the motor is air, hydraulic, electric, or a prior art direct drive electric motor with a soft start.
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Citations
13 Claims
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1. A molten metal pump comprising:
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a molten metal inlet and outlet;
drive motor means and motor mount;
an impeller shaft and coupling connecting the impeller shaft to the drive motor means;
a base and supports connecting said motor mount to said base;
an impeller on said impeller shaft;
wherein the motor mount supports the drive motor means and wherein the impeller shaft is supported by a bearing in said base;
tapered sockets on said motor mount;
tapered ends on said supports fitting in said tapered sockets on said motor mount and pin means releasably pinning said supports to said motor mount. - View Dependent Claims (2, 3, 4, 7, 8, 9, 10, 12, 13)
a top plate;
side plates;
a bottom plate;
wear rings;
directional guides.
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5. A chambered vane impeller molten metal pump comprising:
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molten metal inlet and outlet;
a chambered vane impeller connected to a shaft and said impeller pumping molten metal from said inlet toward said outlet;
drive motor means connected to said shaft by a releasable pin coupling;
said shaft connected to each vane of said impeller by a mortise groove in said shaft and a cooperating tenon on said vane;
a base and a bearing in said base rotatably supporting said shaft;
motor mount supporting said drive motor means;
column supports releasably connecting said base to said motor mount. - View Dependent Claims (6, 11)
a locking ring with locking slots;
a bottom plate with mortise grooves;
impeller vanes, each of said vanes further comprising a locking notch;
wherein the locking notch of each of said vanes mate with a locking slot on said locking ring.
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Specification