DE3010416A1 - Measuring system for blades gap of harvesting machine - uses non-contact acoustic or optical sensor located underneath fixed blade - Google Patents
Measuring system for blades gap of harvesting machine - uses non-contact acoustic or optical sensor located underneath fixed bladeInfo
- Publication number
- DE3010416A1 DE3010416A1 DE19803010416 DE3010416A DE3010416A1 DE 3010416 A1 DE3010416 A1 DE 3010416A1 DE 19803010416 DE19803010416 DE 19803010416 DE 3010416 A DE3010416 A DE 3010416A DE 3010416 A1 DE3010416 A1 DE 3010416A1
- Authority
- DE
- Germany
- Prior art keywords
- fixed blade
- distance
- harvesting machine
- sensor
- blades
- 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.)
- Ceased
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
Description
Vorrichtung zur Überwachung des Schneidenabstands an Device for monitoring the distance between the cutting edges
Erntemaschinen Die Erfindung betrifft eine Vorrichtung zur Überwachung des Abstands von miteinander korrespondierenden Schneiden an Messern von Erntemaschinen, insbesondere Feldhäckslern. Harvesting machines The invention relates to a device for monitoring the distance between corresponding cutting edges on knives of harvesting machines, especially forage harvesters.
Für eine bestmögliche Aufbereitung des Ernteguts und zur Erzeugung von möglichst geringen Schnittkraften ist es erforderlich, daß bei Feldhäckslern der Abstand zwischen den Schneiden der miteinander korrespondierenden Messer möglichst gering gehalten wird.For the best possible preparation of the crop and production the lowest possible cutting forces, it is necessary that with forage harvesters the distance between the cutting edges of the corresponding knives as possible is kept low.
Durch Verschleiß und Abnutzung vergrößert sich die Distanz zwischen den miteinander korrespondierenden Schneiden während des Betriebs. Dies hat zur Folge, daß die BedienungSperson den Abstand kontrollieren und von Zeit zu Zeit nachstellen muß. Sowohl die Kontrolle als auch das erforderliche Nachstellen unterbleiben in vielen Fällen. Dies führt zu einer Verringerung des Durchsatzes.Wear and tear increases the distance between the corresponding cutting edges during operation. This has to As a result, the operator controls the distance and readjusts it from time to time got to. Both the control and the necessary readjustment are omitted in many cases. This leads to a reduction in throughput.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs erwähnten Art zu schaffen, mit deren Hilfe der Abstand zwischen den Schneiden von zusammenwirkenden Messern ständig überwacht werden kann, so daß das Bedienungspersonal frühzeitig auf Verhältnisse im Schneidwerk hingewiesen wird, bei denen auf eine Nachstellung der Messer, beispielsweise wegen eines Schleifens oder eines zu großen Abstands hingewiesen wird.The invention is based on the object of providing a device of the initially described mentioned type to create with the help of the distance between the cutting of interacting knives can be constantly monitored, so that the operating personnel is made aware of the conditions in the cutting unit at an early stage, in those on readjustment of the knife, for example because of grinding or that the distance is too great.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß mindestens ein in der Erntemaschine angeordneter Meßfühler vorgesehen ist, der den Abstand der Schneide eines beweglichen Messers von dem vorgegebenen Bezugspunkt mißt.This object is achieved according to the invention in that at least a sensor arranged in the harvesting machine is provided which determines the distance the cutting edge of a movable knife measures from the given reference point.
Dabei hat es sich als zweckmäßig erwiesen, daß der Meßfühler ortsfest angeordnet ist. Als bevorzugten Ort der Anbringung kann man die Schneide eines ortsfesten Gegenmessers wählen.It has proven to be expedient for the measuring sensor to be stationary is arranged. The cutting edge of a stationary one can be the preferred place of attachment Select counter knife.
Bei einer bevorzugten Ausführungsform ist als Meßfühler ein Induktions-Näherungsfühler vorgesehen.In a preferred embodiment, an induction proximity sensor is used as the measuring sensor intended.
Schließlich wird erfindungsgemäß auch vorgeschlagen, daß bei Überschreiten eines vorgegebenen'Grenzwerts für den Abstand ein Signal erzeugt wird.Finally, it is also proposed according to the invention that when exceeded A signal is generated after a predetermined limit value for the distance.
Bei den an sich bekannten hochfrequenten Induktions-Näherungsfühlern werden bei Annährung von elektrisch leitenden Gegenständen Wirbelströme erzeugt, die die elektrischen Eigenschaften einer Erregerspule des Fühlers verändern oder bei Kopplung mit einer Empfangsspule eine Phasenverschiebung des Meßstroms bzw.In the case of the high-frequency induction proximity sensors known per se eddy currents are generated when electrically conductive objects are approached, which change the electrical properties of an excitation coil of the sensor or a phase shift of the measuring current resp.
der Meßspannung verursachen. Mit einem derartigen Meßfühler, welcher ein Signal oder einen Schaltimpuls geben kann, kann der Ansprechpunkt sehr exakt eingestellt werden. Es ist möglicn, bei einer ortsfesten Anbringung des Fühlers sehr geringe Abweichungen von dem vorgegebenen Schneidenabstand abzutasten und bei Überschreiten eines Grenzwerts einen Impuls auszulösen, der ein Signal an das Bedienungspersonal für eine notwendige Korrektur der Messereinstellung erzeugt.cause of the measuring voltage. With such a probe, which can give a signal or a switching pulse, the response point can be very precise can be set. It is possible with a stationary attachment of the sensor to scan very small deviations from the specified cutting edge distance and at If a limit value is exceeded, a pulse is triggered which sends a signal to the operating personnel generated for a necessary correction of the knife setting.
Bisher ist die Verwendung von Näherungsfühlern in Erntemaschinen für die einganges geschilderte Aufgabe nicht bekannt.So far, the use of proximity sensors in harvesting machines is for the task described above is not known.
Die Vorteile einer derartigen Lösung bestehen insbesondere in einer einfachen Überprüfung von wichtigen Betriebswerten der Erntemaschine mit der Möglichkeit, bei Bedarf die Einstellungen sofort zu korrigieren. Auf diese Weise werden die Leistungs-und Schnittverluste der Erntemaschine stets sehr gering gehalten.The advantages of such a solution are in particular one simple checking of important operating values of the harvesting machine with the possibility of correct the settings immediately if necessary. This way the performance and Cutting losses of the harvesting machine are always kept very low.
Nachstehend wird eine bevorzugte Ausführungsform der Erfindung anhand der Zeichnung im einzelen beschrieben. Es zeigen: Figur 1 - einen Längsschnitt durch den Einzugs- und Messerbereich eines Feldhäckslers, Figur 2 - die Verhältnisse im Messerbereich in vergrößerter Darstellung.A preferred embodiment of the invention is illustrated below described in detail in the drawing. They show: FIG. 1 - a longitudinal section through the intake and knife area of a forage harvester, Figure 2 - the conditions in Knife area in an enlarged view.
Der Feldhäcksler besitzt die üblichen Einzugswalzen 5a, 5b und 5c, welche das aufgenommene Erntegut zu den Preßwalzen 6a und 6b fördern. Hinter den Preßwalzen ist ein ortsfestes Messer 3 mit einer Schneide 3a vorgesehen. Das ortsfeste Messer 3 erstreckt sich parallel zur Drehachse 7 der Messertrommel 8, welche auf ihrem Umfang verteilte umlaufende Messer 2 besitzt, die nacheinander mit ihren Schneiden 2a an den Schneiden 3a des ortsfesten Messers 3 ablaufen.The forage harvester has the usual feed rollers 5a, 5b and 5c, which promote the picked crop to the press rollers 6a and 6b. Behind the A stationary knife 3 with a cutting edge 3a is provided for the press rolls. The fixed one Knife 3 extends parallel to the axis of rotation 7 of the knife drum 8, which on has its circumference distributed rotating knife 2, one after the other with their cutting edges 2a run off the cutting edges 3a of the stationary knife 3.
Unterhalb des ortsfesten Messers 3 ist an diesem der Meßfühler 1 befestigt.The sensor 1 is attached to the stationary knife 3 below it.
Der Meßfühler 1 wird so eingestellt, daß er bei Überschreiten eines vorgegebenen Grenzwerts für den Abstand a zwischen den Schneiden 3a und 2a ein Signal verursacht. Dies kann beispielsweise ein akustisches oder optisches Signal sein. Es ist auch möglich, dieses Signal zum Abschalten des Feldhäckslers auszunutzen.The sensor 1 is set so that when it exceeds a predetermined limit value for the distance a between the cutting edges 3a and 2a a signal caused. This can be, for example, an acoustic or optical signal. It is also possible to use this signal to switch off the forage harvester to take advantage of.
L e e r s e i t eL e r s e i t e
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803010416 DE3010416A1 (en) | 1980-03-19 | 1980-03-19 | Measuring system for blades gap of harvesting machine - uses non-contact acoustic or optical sensor located underneath fixed blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803010416 DE3010416A1 (en) | 1980-03-19 | 1980-03-19 | Measuring system for blades gap of harvesting machine - uses non-contact acoustic or optical sensor located underneath fixed blade |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3010416A1 true DE3010416A1 (en) | 1981-09-24 |
Family
ID=6097581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19803010416 Ceased DE3010416A1 (en) | 1980-03-19 | 1980-03-19 | Measuring system for blades gap of harvesting machine - uses non-contact acoustic or optical sensor located underneath fixed blade |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3010416A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3345749A1 (en) * | 1982-12-20 | 1984-06-20 | Hesston Corp., Hesston, Kan. | Cutting device for crop comminution with automatic shear-bar adjustment |
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 |
AT390713B (en) * | 1985-10-08 | 1990-06-25 | Mengele & Soehne Masch Karl | COUNTER-CUT LOCK FOR A CHOPPER OD. DGL. CRUSHING MACHINE |
USRE34946E (en) * | 1987-05-05 | 1995-05-23 | New Holland North America, Inc. | Method and apparatus for adjusting a shear bar relative to a cutter head |
WO1998047345A1 (en) * | 1997-04-18 | 1998-10-29 | Case Harvesting Systems Gmbh | Method and device for measuring a gap in agricultural machines |
EP1080629A1 (en) * | 1999-09-06 | 2001-03-07 | Case Harvesting Systems GmbH | Method and device for adjusting the cutting knife clearance in shredders |
EP1080630A1 (en) * | 1999-09-06 | 2001-03-07 | Case Harvesting Systems GmbH | Method for adjusting the cutting knife clearance in shredders |
EP1532870A1 (en) * | 2003-11-22 | 2005-05-25 | Hauni Primary GmbH | Device and method for cutting tobacco from a tobacco bale |
US7415365B2 (en) | 2006-03-30 | 2008-08-19 | Claas Selbstfahrende Erntemaschinen Gmbh | Structure-borne sound sensor unit |
EP2425705A1 (en) * | 2010-09-07 | 2012-03-07 | CLAAS Selbstfahrende Erntemaschinen GmbH | Cutting device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6750261U (en) * | 1968-07-18 | 1969-01-02 | Deere & Co | DEVICE THAT CAN BE CONTROLLED BY AN ENCODER FOR GUIDING AGRICULTURAL WORK TOOLS, IN PARTICULAR THE CUTTING TABLE OF COMBINE HARVESTERS. |
DE2636488A1 (en) * | 1975-08-15 | 1977-02-24 | Sperry Rand Corp | FIELD HARVESTERS |
DE2613153A1 (en) * | 1976-03-27 | 1977-10-06 | Fahr Ag Maschf | Automatic height adjuster for combine harvester - consists of shaft over L bar connected to switch lever |
DE2943837A1 (en) * | 1978-10-30 | 1980-05-14 | Sperry Rand Corp | DISTANCE MEASURING DEVICE |
-
1980
- 1980-03-19 DE DE19803010416 patent/DE3010416A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6750261U (en) * | 1968-07-18 | 1969-01-02 | Deere & Co | DEVICE THAT CAN BE CONTROLLED BY AN ENCODER FOR GUIDING AGRICULTURAL WORK TOOLS, IN PARTICULAR THE CUTTING TABLE OF COMBINE HARVESTERS. |
DE2636488A1 (en) * | 1975-08-15 | 1977-02-24 | Sperry Rand Corp | FIELD HARVESTERS |
DE2613153A1 (en) * | 1976-03-27 | 1977-10-06 | Fahr Ag Maschf | Automatic height adjuster for combine harvester - consists of shaft over L bar connected to switch lever |
DE2943837A1 (en) * | 1978-10-30 | 1980-05-14 | Sperry Rand Corp | DISTANCE MEASURING DEVICE |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2537832A1 (en) * | 1982-12-20 | 1984-06-22 | Hesston Corp | Displacement regulator for harvesting cutter shear beam |
DE3345749A1 (en) * | 1982-12-20 | 1984-06-20 | Hesston Corp., Hesston, Kan. | Cutting device for crop comminution with automatic shear-bar adjustment |
AT390713B (en) * | 1985-10-08 | 1990-06-25 | Mengele & Soehne Masch Karl | COUNTER-CUT LOCK FOR A CHOPPER OD. DGL. CRUSHING MACHINE |
EP0510781A3 (en) * | 1987-05-05 | 1993-03-10 | Ford New Holland Inc. | Method for adjusting two members of a forage harvester |
EP0676131A2 (en) | 1987-05-05 | 1995-10-11 | New Holland Belgium N.V. | Method and apparatus for adjusting a shear bar in a cutting apparatus using a vibration sensor |
EP0509620A2 (en) * | 1987-05-05 | 1992-10-21 | New Holland Belgium N.V. | Cutting apparatus |
EP0510780A2 (en) * | 1987-05-05 | 1992-10-28 | New Holland Belgium N.V. | Forage harvester |
EP0510781A2 (en) * | 1987-05-05 | 1992-10-28 | New Holland Belgium N.V. | Method for adjusting two members of a forage harvester |
EP0511724A2 (en) * | 1987-05-05 | 1992-11-04 | New Holland Belgium N.V. | Forage harvester |
EP0510780A3 (en) * | 1987-05-05 | 1993-03-10 | Ford New Holland Inc. | Apparatus for adjusting a shear bar relative to a cutter head |
EP0509620A3 (en) * | 1987-05-05 | 1993-03-10 | Ford New Holland Inc. | Apparatus for adjusting a shear bar relative to a cutter head |
EP0511724A3 (en) * | 1987-05-05 | 1993-03-10 | Ford New Holland Inc. | Apparatus for adjusting two members of a forage harvester |
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 |
USRE34946E (en) * | 1987-05-05 | 1995-05-23 | New Holland North America, Inc. | Method and apparatus for adjusting a shear bar relative to a cutter head |
EP0706752A1 (en) | 1987-05-05 | 1996-04-17 | New Holland Belgium N.V. | Shear bar adjustment apparatus including vibration sensor means with adjustable threshold |
EP0676132A2 (en) | 1987-05-05 | 1995-10-11 | New Holland Belgium N.V. | Method and apparatus for adjusting a shear bar in a forage harvester |
EP0679330A2 (en) | 1987-05-05 | 1995-11-02 | New Holland Belgium N.V. | Forage harvester having automatic shear bar adjustment mechanism including safety features |
EP0676132A3 (en) * | 1987-05-05 | 1996-04-10 | Ford New Holland Nv | Method and apparatus for adjusting a shear bar in a forage harvester. |
US4934612A (en) * | 1988-03-28 | 1990-06-19 | Deere & Company | Automatic forage harvester shearbar adjusting |
WO1998047345A1 (en) * | 1997-04-18 | 1998-10-29 | Case Harvesting Systems Gmbh | Method and device for measuring a gap in agricultural machines |
EP1080629A1 (en) * | 1999-09-06 | 2001-03-07 | Case Harvesting Systems GmbH | Method and device for adjusting the cutting knife clearance in shredders |
EP1080630A1 (en) * | 1999-09-06 | 2001-03-07 | Case Harvesting Systems GmbH | Method for adjusting the cutting knife clearance in shredders |
EP1532870A1 (en) * | 2003-11-22 | 2005-05-25 | Hauni Primary GmbH | Device and method for cutting tobacco from a tobacco bale |
US7415365B2 (en) | 2006-03-30 | 2008-08-19 | Claas Selbstfahrende Erntemaschinen Gmbh | Structure-borne sound sensor unit |
DE102006015152A1 (en) | 2006-03-30 | 2008-09-25 | Claas Selbstfahrende Erntemaschinen Gmbh | Borne sound sensor unit |
EP2425705A1 (en) * | 2010-09-07 | 2012-03-07 | CLAAS Selbstfahrende Erntemaschinen GmbH | Cutting device |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8131 | Rejection |