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US 5,765,452 AGranted
Method for improving the endurance of a blade base of a disc chipper, a blade base of a disc chipper and a disc chipper
AssigneeSunds Defibrator Woodhandling Oy
InventorsPaul Roux, Timothy P. Nettles, Hannu Tahkanen, Arvo Jonkka, Pauli Vienola, Antti Tohkala
Life of this patent
Estimating the term…
Abstract
A method for improving the endurance of a blade base (6) of the disc (1) of a disc chipper, a blade base and a disc chipper. A wearing plate (10) is attached to the surface (18) of the blade base facing towards the chip opening (7), the wearing surface (10) of which is shot peened.
Claims20
A method for increasing endurance of a blade base of a disc of a disc chipper comprising the steps of:
- attaching a wearing part to a blade base of a disc of a disc chipper so that a wearing surface of the wearing part faces toward a chip opening of the blade base:
- and
- shot peening the wearing surface so that abrasion resistance of the wearing surface is increased.
A blade base of a disc chipper for attaching a blade to a disc, comprising:
- a frame, the frame having a surface;
- and
- a wearing part attached to the surface, the wearing part having a wearing surface, the wearing surface being shot peened such that wear resistance of the wearing surface is increased relative to wear resistance of a remaining portion of the wearing part.
A disc chipper, comprising:
- a fixed counter blade;
- a rotatable disc, the rotatable disc being rotatable relative to the fixed counter blade, the rotatable disc including at least one blade base for attaching at least one blade to the rotatable disc, and at least one wearing plate, the at least one blade base and the at least one wearing plate defining a chip opening, the at least one blade base including a frame and a wearing part attached to a surface of the frame, the wearing part having a wearing surface, the wearing surface facing toward the chip opening, the wearing surface being shot peened such that it has a greater abrasion resistance than a remaining portion of the wearing part.
Dependencies are inferred from the claim text.