Releasable fastening arrangement for straw chopper blade
AssigneeDeere & Company
InventorDirk Weichholdt
Life of this patent
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Abstract
A fastening arrangement for fastening a blade to a rotor of a straw chopper. The fastening arrangement comprising a bolt that is inserted into a blade hole in the blade and into a plate hole in a mounting plate extending from the rotor and into a retaining element that retains the bolt in the holes. The retaining element can be separated from the bolt. The bolt and the retaining element are fixed against rotation by the mounting plate.
Claims20
A fastening arrangement for fastening a blade to a rotor of a straw chopper, the blade being pendulously supported on the rotor, the blade having a blade hole and the straw chopper comprising a rotor and a mounting plate extending from the rotor, the fastening arrangement comprising a bolt that can be inserted into the blade hole in the blade and a plate hole in the mounting plate, the bolt being connected with a retaining element that retains the bolt in the holes, the retaining element can be separated from the bolt wherein the bolt and the retaining element are fixed against rotation by the mounting plate.
A straw chopper for a harvesting machine, the straw chopper comprising:
- a rotor having a plurality of outwardly extending mounting plates, each of the mounting plates having a non-circular plate hole;
- a plurality of blades pendulously supported from the mounting plates, the blades being coupled to the mounting plates by a fastening assembly, each of the blades having a circular blade hole;
- the fastening arrangement comprising a bolt that can be inserted into the blade hole in the blade and the plate hole in the mounting plate, the bolt being connected with a retaining element that retains the bolt in the holes, the retaining element can be separated from the bolt, wherein the bolt and the retaining element are fixed against rotation by the plate hole of the mounting plate.
Dependencies are inferred from the claim text.