Hammer mill hammer
A method of avoiding hammer rod-hole deformation in a hammer mill. Conventional hammers are fitted with a bearing structure that reduces wear while permitting the hammer to pivot about multiple axes. An optional, integral spacer provides spacing between adjacent hammers.
1. A hammer mill hammer blade assembly comprising:
(a) a hammer blade body;
(b) an inner bearing race separate from a rod about which the hammer blade body rotates and wherein the inner bearing race is stationary with respect to the rod;
(c) an outer bearing race stationary with respect to the hammer blade body;
(d) the inner bearing race being concentric to the outer bearing race;
(e) a spacer concentric to the inner bearing race; and
(f) the inner bearing race being disposed over and concentric with the rod about which the hammer blade body rotates.
2. The hammer mill hammer blade assembly of claim 1 , further comprising:
a space between the first hammer mill blade body and a second hammer mill blade body by virtue of the spacer.
3. The hammer mill hammer blade assembly of claim 1 wherein the outer bearing race is integral with the hammer blade body.
4. The hammer mill hammer blade assembly of claim 1 wherein the inner bearing race concentric to the outer bearing race comprises:
(a) an inner, cylindrical surface in the hammer blade body;
(b) the inner bearing race being disposed within said inner, cylindrical surface; and
(c) the hammer blade body comprises the outer bearing race mated with the inner bearing race.
5. The hammer mill hammer blade assembly of claim 4 wherein the hammer blade body is constructed of a forged material.
6. The hammer mill hammer blade assembly of claim 1 wherein the spacer is integral with the inner bearing race.
7. The hammer mill hammer blade assembly of claim 1 additionally comprising:
(a) outer surface of the inner bearing race having a predetermined curvature;
(b) an inner surface of the outer bearing race having a predetermined curvature; and
(c) the inner bearing race being disposed to pivot in the outer bearing race about an axis of pivot not parallel to a longitudinal axis of the rod about which the hammer blade body rotates.
8. The hammer mill hammer blade assembly of claim 1 wherein the spacer concentric to the inner bearing race comprises:
(a) a hollow, cylindrical spacer; and
(b) said hollow, cylindrical spacer being disposed over and concentric with the rod about which the hammer blade body rotates.