Hammer Mill Hammer With Non-Circular Rod Hole in Inner Bearing Race
AssigneeJacobs Corporation
InventorChad J. Plumb
Life of this patent
Estimating the term…
Abstract
An improved hammermill hammer with a connection end having a bearing race in the hammer body and a bearing received in said bearing race, the bearing having a non-circular, elongated, elliptical, oval or egg shaped inner bearing surface for receiving a hammer rod there through to prevent the hammer from sticking to the hammer rod.
Claims27
An improved connection end for a hammermill hammer comprising:
- (a) a circular bearing race in the connection end of the hammer body;
- (b) a circular bearing received in the circular bearing race;
- (c) a non-circular rod hole in the inside of the bearing.
An improved hammermill hammer comprising:
- (a) a neck portion connecting a connection end of the hammer, which receives a hammer rod, and a contacting end of the hammer for contacting and comminuting material in the hammermill;
- (b) a circular bearing race in the connection end of the hammer;
- (c) a circular bearing received in the circular bearing race;
- and
- (d) an oval hole in the inside of the circular bearing, formed from a first and second arcuate sections, which arcuate sections are offset from each other and are connected on both sides by slightly convexly arcuate portions, which convexly arcuate portions have a length approximating the length of the offset;
- (e) scalloped portions on the side edges of the contact end of the hammer;
- and
- (f) a notch in the bottom edge of the contact end of the hammer.
A hammermill hammer having an improved connection end having a hammer rod received in the connection end comprising:
- (a) a circular outer bearing race in the connection end of the hammer body;
- (b) a circular bearing received in the circular bearing race;
- (c) a non-circular rod hole in the inside of the bearing;
- and,
- (d) a hammer rod received in the non-circular rod hole in the inside of the bearing.
A hammermill hammer having a connection end and a contact, and a neck connecting the two ends, wherein the connection end comprises:
- a. a bearing race in the connection end of the hammer;
- b. a bearing received in the bearing race;
- c. a non-circular inner race in the bearing, which inner race forms a hammer rod hole for receiving a hammer rod.
A hammer mill hammer blade assembly comprising:
- (a) a hammer blade body;
- (b) an inner bearing race;
- (c) an outer bearing race stationary with respect to the hammer blade body;
- (d) an outer surface of the inner bearing race being concentric to the outer bearing race;
- and
- (e) an inner surface of the inner bearing race being non-circular in shape and adapted to receive an hammer mill rod, the rod having an axis about which the hammer blade body rotates when the hammer mill is in operation.
A method of applying tungsten carbide to a hammermill hammer of a type adapted to receive a hammermill hammer rod into an opening in a first end thereof, having a second end and a neck connecting the first end and the second end, the neck and second end having a leading side edge and a following side edge during operation of the hammermill, said method comprising:
- forming a depression in at least the leading side edge of the neck;
- and
- placing tungsten carbide by welding into the depression.
Dependencies are inferred from the claim text.