Combine having cleaning venting by a suction blower driven by the straw chopper shaft

Patent metadata

Field	Value
Publication number	US-9872439-B2
Application number	US-201615283597-A
Country	US
Kind code	B2
Filing date	Oct 3, 2016
Priority date	Oct 21, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A combine ( 10 ) includes a cleaning system ( 28 ) and an air conduit ( 80 ), which air conduit is arranged outside of a side wall ( 78 ) and through which the cleaning air is conducted downstream of the cleaning screens ( 48, 50, 66 ) to a suction blower ( 86 ) of the straw chopper ( 68 ), which suction blower is driven by a drive shaft ( 96 ).

First claim

The invention claimed is:

1. A combine ( 10 ) comprises:
a supporting structure ( 12 ), on the front side of which an inclined conveyor ( 20 ) is mounted;
a threshing and separating device mounted inside the supporting structure ( 12 ) and comprising a crop residue outlet through which crop residues can be fed to a straw chopper ( 68 );
a cleaning system ( 28 ) to which grain separated by the threshing and separating device can be supplied and which is equipped with a cleaning blower ( 46 ) for generating an air flow, and at least one cleaning screen ( 48 , 50 , 66 ), to which the air flow can be applied and which can be set into an oscillating motion to separate grain and chaff; and
an air conduit ( 80 ) that extends between an inlet ( 82 ), arranged downstream of the at least one cleaning screen ( 48 , 50 , 66 ) in relation to the air flow, and a suction blower ( 86 ), characterized in that the air conduit ( 80 ) is situated on the outer side of a side wall ( 78 ) of the cleaning system ( 28 ) and in that the suction blower ( 86 ) is arranged coaxially with a drive shaft ( 96 ) of the straw chopper ( 68 ) and is drivingly connected thereto.

2. The combine ( 10 ) according to claim 1 , wherein an outlet ( 94 ) of the suction blower ( 86 ) is adjoined by an additional air conduit ( 102 ), which is designed to direct and air stream generated by the suction blower ( 86 ) onto front ends of external guide shoes ( 76 ) of a passive straw distributor arranged downstream of the straw chopper ( 68 ), or into the inlet of a driven ejection fan arranged downstream of the straw chopper ( 68 ).

3. Combine ( 10 ) according to claim 1 or 2 , wherein a suction connector ( 100 ) that is connected to the air conduit ( 80 ) is arranged on the inner side of the side wall ( 78 ).

Assignees

• Deere & Co

Inventors

• Pohlmann Norbert
• Weichholdt Dirk
• Loutz Eric
• Priesnitz Rico Guido
• Peschel Benjamin
• Fries Christina
• Diessner Gregor
• Mischler Peter
• Klein Oliver
• Lauer Friedrich

Classifications

• A01D41/1243 Primary

  Devices for laying-out or distributing the straw · CPC title

• A01F12/444

  Fanning means · CPC title

• A01F12/48 Primary

  Air conduits or blowers for grain · CPC title