CA2456404A1 - Device for measuring and/or checking the distance between a shearbar and a chopping knife - Google Patents

Device for measuring and/or checking the distance between a shearbar and a chopping knife Download PDF

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Publication number
CA2456404A1
CA2456404A1 CA002456404A CA2456404A CA2456404A1 CA 2456404 A1 CA2456404 A1 CA 2456404A1 CA 002456404 A CA002456404 A CA 002456404A CA 2456404 A CA2456404 A CA 2456404A CA 2456404 A1 CA2456404 A1 CA 2456404A1
Authority
CA
Canada
Prior art keywords
shearbar
knives
distance
checking
measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002456404A
Other languages
French (fr)
Other versions
CA2456404C (en
Inventor
Peter Pirro
Steffen Clauss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Publication of CA2456404A1 publication Critical patent/CA2456404A1/en
Application granted granted Critical
Publication of CA2456404C publication Critical patent/CA2456404C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
    • A01F29/09—Details
    • A01F29/095—Mounting or adjusting of knives
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D43/00—Mowers combined with apparatus performing additional operations while mowing
    • A01D43/08—Mowers combined with apparatus performing additional operations while mowing with means for cutting up the mown crop, e.g. forage harvesters

Abstract

A crop chopping arrangement for a forage harvester includes a shearbar mounted adjacent a path swept by chopping knives of a chopper drum and being selectively adjustable toward and away from said path so as to adjust the distance between the shearbar and knives as they pass by the shearbar. An arrangement for measuring and/or checking the distance between the shearbar and the knives includes a vibration sensor located to measure the mechanical vibrations in the shearbar produced by the moving knives, and an electronic evaluation circuit. The evaluation circuit is operable for performing a frequency analysis of the signal provided by the vibration sensor so as to derive information indicative of the distance between the shearbar and knives.
CA002456404A 2003-01-30 2004-01-29 Device for measuring and/or checking the distance between a shearbar and a chopping knife Expired - Fee Related CA2456404C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10303504.4 2003-01-30
DE10303504A DE10303504A1 (en) 2003-01-30 2003-01-30 Device for measuring and / or checking the distance between a shear bar and a chopping knife

Publications (2)

Publication Number Publication Date
CA2456404A1 true CA2456404A1 (en) 2004-07-30
CA2456404C CA2456404C (en) 2007-03-20

Family

ID=32603027

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002456404A Expired - Fee Related CA2456404C (en) 2003-01-30 2004-01-29 Device for measuring and/or checking the distance between a shearbar and a chopping knife

Country Status (4)

Country Link
US (1) US6886314B2 (en)
EP (1) EP1442652B1 (en)
CA (1) CA2456404C (en)
DE (2) DE10303504A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10346412A1 (en) 2003-10-07 2005-05-25 Deere & Company, Moline Harvesting machine with a monitoring device for monitoring the sharpness of cutting blades and / or their distance from a counter-blade
US7392645B1 (en) * 2003-12-23 2008-07-01 Precision Tool Products Co. Bed knife gage holder for adjusting lawn mower cutters
DE102005042049A1 (en) * 2005-09-02 2007-03-29 Claas Selbstfahrende Erntemaschinen Gmbh Device and method for the detection of structure-borne sound vibrations
DE102005055983A1 (en) * 2005-11-24 2007-07-05 Deere & Company, Moline Feeding device for a forage harvester
DE102006025224A1 (en) * 2006-05-29 2007-12-20 Claas Selbstfahrende Erntemaschinen Gmbh Agricultural harvester
DE102009029675B4 (en) * 2008-11-25 2023-03-16 Deere & Company Device and method for detecting the sharpness of chopper knives
DE102009046821B4 (en) * 2009-11-18 2015-12-24 Deere & Company Arrangement for the automatic recognition of the transmission ratio of a drive train for a working member and / or the number of active movable elements of a working member of an agricultural harvesting machine
DE102011052726A1 (en) * 2011-08-16 2013-02-21 Claas Selbstfahrende Erntemaschinen Gmbh Method and device for detecting the state of a cutting device
DE102013108292A1 (en) * 2013-08-01 2015-02-05 Claas Selbstfahrende Erntemaschinen Gmbh Combine harvester with a chopping device
DE102014218408A1 (en) * 2013-10-31 2015-04-30 Deere & Company Arrangement for detecting the sharpness of chopping knives
BE1022071B1 (en) 2014-03-12 2016-02-15 Cnh Industrial Belgium Nv SYSTEM AND METHOD FOR DETERMINING KNIFE WEAR
BE1023152B1 (en) 2015-08-28 2016-12-02 Cnh Industrial Belgium Nv Harvesting machine with feedback control of chopping parameters
DE102017103537A1 (en) * 2017-02-21 2018-08-23 Claas Selbstfahrende Erntemaschinen Gmbh Detection arrangement for detecting a state of wear of a chaff
DE102017110225A1 (en) 2017-05-11 2018-11-15 Heusch Gmbh & Co. Kg Cutting tool and method of operating the same
PL3479677T3 (en) * 2017-11-06 2020-06-29 Müthing GmbH & Co. KG Agricultural working device
DE102018216320A1 (en) * 2018-09-25 2020-03-26 Deere & Company Arrangement for adjusting the position of the shearbar of a forage harvester
EP3738429A1 (en) 2019-05-16 2020-11-18 CLAAS Selbstfahrende Erntemaschinen GmbH Driver assistance system of a forage harvester
GB202007963D0 (en) * 2020-05-28 2020-07-15 Agco Int Gmbh Forage harvester adjustment apparatus
GB202007962D0 (en) * 2020-05-28 2020-07-15 Agco Int Gmbh Forage harvester adjustment apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769666A (en) * 1970-05-26 1973-11-06 Reliable Machine Works Inc Shearing apparatus with means to detect clearance between cutting blades
US4205797A (en) * 1978-10-30 1980-06-03 Sperry Corporation Magnetic clearance sensor
US4799625A (en) * 1987-05-05 1989-01-24 Ford New Holland, Inc. Method and apparatus for adjusting a shear bar relative to a cutter head
US4934612A (en) * 1988-03-28 1990-06-19 Deere & Company Automatic forage harvester shearbar adjusting
DE4134957C2 (en) 1991-10-23 1997-04-24 Claas Ohg Counter knife adjustment device
DE4335786A1 (en) 1993-10-20 1995-04-27 Claas Bhohg Safety device of a shearbar adjuster
GB2312958B (en) * 1996-05-09 1998-04-15 Rotadata Ltd Analysis of motion of rotary assembly
DE19812271B4 (en) 1998-03-20 2013-08-01 Deere & Company Device for monitoring the distance between a knife of a rotating cutting drum and a counter-cutting edge of a harvester
DE19903153C1 (en) 1999-01-27 2000-03-16 Case Harvesting Sys Gmbh Method of determining the sharpness of agricultural chopping blades involves comparing reference load quotient on counter blade with varying quotient measured during operation

Also Published As

Publication number Publication date
US20040182061A1 (en) 2004-09-23
DE502004001121D1 (en) 2006-09-21
EP1442652B1 (en) 2006-08-09
EP1442652A1 (en) 2004-08-04
CA2456404C (en) 2007-03-20
DE10303504A1 (en) 2004-09-02
US6886314B2 (en) 2005-05-03

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Effective date: 20210129