Residue Chopping and Distribution Arrangement for a Combine Harvester

  • US 20150230408A1
  • Filed: 02/14/2014
  • Published: 08/20/2015
  • Est. Priority Date: 02/14/2014
  • Status: Active Grant
First Claim
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1. A residue chopping and distribution arrangement (48) for a combine harvester (10), comprising:

  • a first straw chopper (50) with a first straw chopper housing (54) and a first rotor (66) within the first straw chopper housing (54), wherein the first rotor (66) has chopper knives (72) distributed around its circumference, wherein the first rotor (66) is connected to a first drive shaft (68) which is supported within the first straw chopper housing (54) to rotate around a first rotation axis (70), and wherein the first drive shaft (68) is connected to a first drive mechanism (67),a second straw chopper (52) with a second straw chopper housing (80) and a second rotor (92) within the second straw chopper housing (80), wherein the second rotor (92) has chopper knives (72) distributed around its circumference, wherein the second rotor (92) is connected to a second drive shaft (100) which is supported within the second straw chopper housing (80) to rotate around a second rotation axis (94), and wherein the second drive shaft (100) is connected to a second drive mechanism (93);

    wherein the first rotation axis (70) and the second rotation axis (94) are at least generally parallel to a forward direction (V) of the combine harvester (10) and laterally offset, and wherein the first drive mechanism (67) and the second drive mechanism (93) are adapted to drive the first rotor (66) and the second rotor (92) in opposite directions during operation such that parts of the first rotor (66) that are disposed beneath the first rotation axis (70) and parts of the second rotor (92) that are disposed beneath the second rotation axis (94) move laterally outwards and expel chopped straw through a respective first outlet (64) and a second outlet (90) over a field;

    further comprising a first chaff spreader (106) adapted to spread chaff over the field, wherein the first chaff spreader (106) is located in the forward direction (V) of the combine harvester (10) in front of the first rotor (66), and wherein the first chaff spreader (106) is coupled to the first drive shaft (68); and

    a second chaff spreader (108) adapted to spread chaff over the field, wherein the second chaff spreader (108) is located in the forward direction (V) of the combine harvester (10) in front of the second rotor (92), and wherein the second chaff spreader (108) is coupled to the second drive shaft (100).

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