Self-unloading centrifuge
AssigneeThe Harshaw Chemical Company
InventorFrank Little
Life of this patent
Estimating the term…
Abstract
A self-unloading centrifuge for use in a metal finishing process which comprises a drum 10 having a perforate cylindrical sidewall 10a, supported for rotation about a vertical axis by a support base 19 and a driving arrangement 12 for rotating the drum. A tilt mechanism 36 is operative to engage and rotate the drum about a substantially transverse axis, spaced laterally from the center axis of the drum in order to discharge the processed parts. Clamping devices 30 are operative to decouple the drum from its driving arrangement prior to unloading and are operative to recouple the drum after reloading. Top and side covers 140, 120, 122, 126 enclose the drum when in its operating position and open as the drum moves to its unloading and/or loading position.
Claims18
A self-unloading, centrifuge, comprising:
- (a) a support base;
- (b) an upstanding, open top drum including a perforate cylindrical wall supported for rotation about a substantially vertical axis;
- (c) drive means for imparting rotation to said drum including releasable coupling means for operatively connecting said drum to said drive means;
- (d) drum unloading means including drum tilting apparatus engageable with said drum and operative to pivot said drum about a substantially horizontal axis, laterally spaced from the center axis of said drum, after said coupling means is released.
A self-unloading, centrifuge, comprising:
- (a) a support base;
- (b) a drum forming a receptacle for parts to be dried, including a cylindrical perforate wall;
- (c) drum drive means for rotating said drum about a substantially vertical axis;
- (d) drum tilt means mounted for pivotal motion about a transverse axis vertically spaced above the bottom of said drum and laterally spaced from said vertical axis, said tilt means engageable with a portion of said drum;
- (e) said tilt means pivotally supported by a pair of spaced rack assemblies, each assembly including a rack operatively engaging an associated drive gear forming part of said tilt means, said racks reciprocally movable by a rack operating means to produce rotative movement in said tilt means thereby translating said drum between operating and unloading positions.
A self-unloading, centrifuge, comprising:
- (a) a support base;
- (b) an open top, upstanding drum including a perforate cylindrical wall;
- (c) drive means for rotating said drum about a substantially vertical axis, said drive means including a motor and drive plate mounted to said support base;
- (d) drum clamping means mounted to said base and operative to frictionally clamp said drum to said drive plate when said drum is in its operating position;
- (e) a pair of spaced rack assemblies mounted to said support base, each assembly including a reciprocally movable rack;
- (f) drive shaft means extending transversely between and pivotally supported by said rack assemblies including drive gears operatively engaged by said racks so that reciprocation of said racks produces rotative motion in said shaft means;
- and,
- (g) a drum tilt frame attached to said drive shaft and engageable with an annular flange on said drum such that rotation of said drive shaft pivots said tilt frame and translates said drum along a curvilinear path from an operating position to an unload position.
A self-unloading, centrifuge, comprising:
- (a) a support base;
- (b) open top drum for receiving and confining articles to be processed;
- (c) drive means for rotating said drum about a substantially vertical aixs, said drive means including a motor and drum driving member mounted to said support base;
- (d) fluid pressure operated drum clamping means mounted to said base including rollers engageable with a portion of said drum and operative to rotatably couple said drum to said drum driving member, when said drum is in its operating position;
- (e) a pair of spaced, fluid pressure operated rack assemblies mounted to said support base, each assembly including a reciprocally movable rack;
- (f) drive shaft means extending transversely between and pivotally supported by said rack assemblies, including drive gears operatively engaged by said racks so that reciprocation of said racks produces rotative motion in said shaft means about a substantially horizontal axis;
- and
- (g) a drum tilt frame attached to said shaft means including means for engaging said drum, such that upon rotation of said shaft means, said tilt frame engages said drum and rotates said drum through a predetermined arc, about said axis.
Dependencies are inferred from the claim text.