Cutter bar, in particular counter-blade for chopping machines
AssigneeGebrüder Busatis Gesellschaft m.b.H.
InventorWolfgang Lutz
Life of this patent
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Abstract
The present disclosure relates to a cutter bar for chopping machines. The cutter bar includes a cutter bar body that defines an edge groove. The edge groove includes a groove bottom and a groove sidewall. The groove sidewall is formed by the material of the cutter bar body. A wear protection structure extends along a surface of the cutter bar body from the edge groove. The wear protection structure is built up on the surface of the cutter bar body as an additively manufactured metal powder application layer. At least one carbide strip is secured to the edge groove and forms the cutting edge. The carbide strip can be fastened to the edge groove by means of a bonding agent, such as solder or adhesive.
Claims20
A cutter bar for a chopping machine, the cutter bar comprising:
- a cutter bar body defining at least one edge groove having a groove bottom and a groove sidewall, the groove sidewall having a first wall portion formed from the material of the cutter bar body;
- a wear protection structure extending along a flat top surface of the cutter bar body from the edge groove, wherein the wear protection structure includes a central portion that covers a central area of the cutter bar body and a second wall portion that extends above the first wall portion of the groove sidewall, wherein an exposed upper surface of the wear protection surface disposed opposite the flat top surface of the cutter bar body tapers upward relative to the flat top surface of the cutter bar body from the central portion to the second wall portion with the central portion having a first thickness and the second wall portion having a second thickness greater than the first thickness;
- and
- at least one carbide strip disposed within the edge groove and secured to the edge groove adjacent the first wall portion of the groove sidewall and the second wall portion of the wear protection structure, wherein the at least one carbide strip forms a cutting edge.
A cutter bar for a chopping machine, the cutter bar comprising:
- a cutter bar body defining opposed first and second edge grooves, wherein the first and second edge grooves each have a groove bottom and a groove sidewall, the groove sidewall having a first wall portion formed from the material of the cutter bar body;
- a wear protection structure extending along a flat top surface of the cutter bar body between the first and second edge grooves, wherein the wear protection structure includes a central portion that covers a central area of the cutter bar body and second wall portions that extend above the first wall portions of the groove sidewalls of the first and second edge grooves, wherein an exposed upper surface of the wear protection surface disposed opposite the flat top surface of the cutter bar body tapers upward relative to the flat top surface of the cutter bar body from the central portion to the second wall portions with the central portion having a first thickness and the second wall portions having second thicknesses greater than the first thickness;
- a first carbide strip disposed within the first edge groove and secured to the first edge groove adjacent the first wall portion of the groove sidewall of the first edge groove and a corresponding second wall portion of the wear protection structure, wherein the first carbide strip forms a first cutting edge;
- and
- a second carbide strip disposed within the second edge groove and secured to the second edge groove adjacent the first wall portion of the groove sidewall of the second edge groove and a corresponding second wall portion of the wear protection structure, wherein the second carbide strip forms a second cutting edge.
Dependencies are inferred from the claim text.