US 11,895,949 B2 · Cleaning device in a combine harvester

Abstract

A method and an apparatus for separating a crop flow on at least one conveying and cleaning unit, particularly a top sieve, of a combine harvester, wherein the conveying and cleaning unit is excited to a longitudinal oscillation and a transverse oscillation. The transverse oscillation is controlled depending on at least one state, wherein least one state for controlling the transverse oscillation is the inclination of the combine harvester, wherein at least one further state for controlling the transverse oscillation is the grain purity, particularly the grain purity of a main crop flow. The transverse oscillation is pre-controlled depending on the inclination of the combine harvester and fine-tuned depending on the grain purity.

Claims14

Dependent claims

A method for separating a crop flow on at least one conveying and cleaning unit, particularly a top sieve, of a combine harvester, comprising the following steps:

exciting the conveying and cleaning unit to a longitudinal oscillation and a transverse oscillation,
controlling the transverse oscillation depending on at least one state comprising an inclination of the combine harvester, and
controlling the transverse oscillation depending on at least one further state that comprises grain purity,
wherein the transverse oscillation is pre-controlled depending on the inclination of the combine harvester and fine-tuned depending on the grain purity.

1 more element

An apparatus for separating a crop flow on at least one conveying and cleaning unit, particularly a top sieve, of a combine harvester, wherein the conveying and cleaning unit that is excited to a longitudinal oscillation and a transverse oscillation, comprising:

one or more first sensors configured for determining grain purity, and
a control unit configured for controlling the transverse oscillation depending on at least one state, wherein the at least one state for controlling the transverse oscillation is the inclination of the combine harvester,
wherein the control unit is configured for controlling the transverse oscillation depending on at least one further state comprising the grain purity,
wherein the control unit is configured to pre-adjust to a transverse oscillation reference value depending on the inclination of the combine harvester and subsequently, depending on the at least one further state, generate a control command signal with which the transverse oscillation of the conveying and cleaning unit is adjusted so that the grain purity lies within a defined tolerance range.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/027,893Filed 22 Sep 2020

Priority

DE 102019125500.723 Sep 2019

Published

US 2021/0084818 A125 Mar 2021

Granted

13 Feb 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

A01D 41/1276
Control or measuring arrangements specially adapted for combines: for cleaning mechanisms
A01D 75/282
Control mechanisms for harvesters or mowers when moving on slopes; Devices preventing lateral pull: acting on the grain cleaning and separating device
A01D 41/1272
For measuring crop flow: for measuring grain flow
A01D 41/1274
Control or measuring arrangements specially adapted for combines: for drives

Cleaning device in a combine harvester

Life of this patent

Cleaning device in a combine harvester

Life of this patent

Abstract

Claims14