Rotary shaft impactor
View Patent ↗A rotary shaft impactor, has a rotor assembly connected to a rotary driving mechanism. The rotor assembly has an axis of rotation, an inlet, and an outlet, and is disposed within a chamber with an inner wall. A wear path has a portion of the inner wall and a channel connecting the inlet and the outlet. At least a portion of the wear path has a diamond surface. The inner wall may also have a shelf
1. A rotary shaft impactor, comprising:
a rotor assembly connected to a rotary driving mechanism;
the rotor assembly comprising an axis of rotation, an inlet, and an outlet, and being disposed within a chamber with an inner wall;
a wear path comprising a portion of the inner wall and a channel connecting the inlet and the outlet;
the inner wall comprising at least one target with a face configured for impacts from accelerated aggregate existing the outlet; and
the face comprising an insert with a carbide substrate bonded to a diamond surface;
the diamond surface comprising a rounded shape that protrudes from a surface of the target, and
the insert is configured to break the accelerated aggregate through bending forces.
2. The rotary shaft impactor of claim 1 , wherein the insert is on a corner of the target, the corner joining at least two surfaces of the target.
3. The rotary shaft impactor of claim 2 , wherein the corner is rounded.
4. The rotary shaft impactor of claim 2 , wherein the corner is sharp.
5. The rotary shaft impactor of claim 1 , wherein the face target also comprises at least one strip of hard material that spans a length of the target.
6. The rotary shaft impactor of claim 1 , wherein the face comprises a pattern of alternating hard strips and rows of inserts.
7. The rotary shaft impactor of claim 1 , wherein the insert comprises a generally conical shape.
8. The rotary shaft impactor of claim 1 , wherein a plurality of inserts are positioned in the wear path in staggered rows on the face of the target.
9. The rotary shaft impactor of claim 1 , wherein the insert protrudes beyond the face by 0.010 to 3.00 inches.
10. The rotary shaft impactor of claim 1 , wherein the insert is brazed or press fit into a recess formed in the face.
11. The rotary shaft impactor of claim 1 , wherein the diamond surface is bonded to a non-planar interface of the insert.
12. The rotary shaft impactor of claim 1 , wherein the target comprises a convex surface.
13. The rotary shaft impactor of claim 1 , wherein a washer is disposed adjacent the diamond surface.
14. The rotary shaft impactor of claim 13 , wherein the washer comprises a tapered surface.