DK173551B1

DK173551B1 - Towed harvesting machine

Info

Publication number: DK173551B1
Application number: DK199801490A
Authority: DK
Inventors: Jan Freudendahl; Harald Raun Nielsen
Original assignee: Freudendahl J Fab As
Priority date: 1998-11-16
Filing date: 1998-11-16
Publication date: 2001-02-26
Also published as: SE9904136L; SE9904136D0; DK199801490A; SE519635C2

Description

, i DK 173551 B1, in DK 173551 B1

Opfindelsen angår en bugseret slåmaskine omfattende slåorganer, kasteorganer til at kaste af slåorganerne slået materiale ad en kastebane bagud, en lede-eller afdækningsskærm over og bagude for kasteorganer-5 ne, og en trækstang ved hjælp af hvilken slåmaskinen kan kobles til en traktor således, at slåmaskinen valgfrit kan bugseres på den ene eller den anden side af traktorens spor under arbejde.BACKGROUND OF THE INVENTION The invention relates to a towed mower comprising mowing means, throwing means for throwing the mowed material backwards onto a throwing track, a guide or cover screen over and backwards for the throwing means, and a drawbar by means of which the mower can be coupled to a tractor, that the mower can be towed optionally on one or the other side of the tractor track during work.

Slåmaskiner af denne art kendes eksempelvis fra 10 ansøgers egne DK-B-166 424 og DK-B-170 694, som beskriver slåmaskiner, der samler det slåede materiale i skårstrenge.Mowers of this kind are known, for example, from 10 applicants' own DK-B-166 424 and DK-B-170 694, which describe mowers that assemble the beaten material into cut strings.

Undertiden ønsker man i stedet for at samle det slåede materiale i skårstrenge at sprede det bredt ud 15 over marken for at det bedre kan tørre. Det er i den forbindelse kendt fra DE-A-31 42 594 bag kasteorganerae at anbringe en række i det væsentlige lodrette, bagudrettede ledeplader, som strækker sig i kastebanen. Når det slåede materiale spredes bredt ud over marken 20 ønsker man at undgå at det kastes ind i den endnu ikke høstede afgrøde, hvilket blandt andet ville medføre at det efterfølgende snittes i mindre stykker og er vanskeligt at opsamle senere.Sometimes, instead of gathering the beaten material into swath strands, it is desirable to spread it wide 15 across the field for better drying. In this connection, it is known from DE-A-31 42 594 behind the throwing organizers to place a series of substantially vertical, rearwardly directed baffles extending in the throwing web. When the mowed material is spread widely over the field 20, it is desired to avoid being thrown into the crop that has not yet been harvested, which would, among other things, result in it being subsequently cut into smaller pieces and difficult to collect later.

I den fra DE-A-31 42 594 kendte slåmaskine er 25 ledepladerne monteret i et særskilt, udskifteligt en-destykke til afdækningsskærmen. Afdækningsskærmen og kasteorganerne kan som en enhed skråtstilles i forhold til resten af slåmaskinen for at undgå at der kastes materiale ind i den endnu ikke høstede afgrøde. Denne 30 løsning er imidlertid ikke optimal fordi kasteorganernes placering i forhold til slåorganerne er vigtig af hensyn til god aflevering af slået materiale fra slåorganerne til kasteorganerne, men denne placering kan ikke fastholdes når afdækningsskærm og kasteorganer 35 skråtstilles.In the mower known from DE-A-31 42 594, the 25 baffles are mounted in a separate, interchangeable one-piece for the cover screen. The cover screen and throwing means can as one unit be inclined to the rest of the mower to prevent material being thrown into the crop that is not yet harvested. However, this solution is not optimal because the location of the throwing means relative to the throwing means is important for the good delivery of struck material from the throwing means to the throwing means, but this position cannot be maintained when the cover screen and throwing means 35 are inclined.

DK 173551 B1 2DK 173551 B1 2

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Det er videre kendt at anvende fast, skråt indstillede ledeplader. Denne løsning er ikke anvendelig ved en slåmaskine af den indledningsvis anførte art fordi de fast indstillede ledeplader ved placering af 5 slåmaskinen på den ene side af traktorens spor ville kaste endnu mere materiale ind i den endnu ikke høstede afgrøde end tilfældet ville være, hvis ledepladerne ikke var skråtstillede, DE offentliggørelsesskrift nr. 196 32 000 be- 10 skriver en selvkørende slåmaskine med et frontmonteret skærebord og en konditioneringsindretning samt spre-deudstyr monteret bagerst. I én udførelsesform omfatter spredeudstyret en rotor og en over denne anbragt skærm, som bærer ledeplader til at styre den udkastede afgrøde 15 enten ud i vifteform eller ind bag slåmaskinen til et samlet skår. Ledepladerne er i to grupper indbyrdes forbundet til samlet bevægelse. Det foreskrives imidlertid, at de to grupper bevæges mod eller fra hinanden, således at afgrøden kastes symmetrisk ud i forhold 20 til maskinens længdemidterakse. Idet slåmaskinen ifølge DE offentliggørelsesskrift nr. 196 32 000 er selv kørende og ikke skal bugseres af en traktor optræder der ved dens brug ikke de samme problemer som ved en bugseret slåmaskine.Furthermore, it is known to use fixed, inclined guide plates. This solution is not applicable to a mower of the type mentioned initially because the fixedly adjusted baffles when positioning the mower on one side of the tractor's track would throw even more material into the crop that has not yet been harvested than would be the case if the baffles did not was inclined, DE Publication No. 196 32 000 describes a self-propelled mower with a front mounted cutting table and a conditioning device and spreading equipment mounted at the rear. In one embodiment, the spreading equipment comprises a rotor and a screen disposed over it which carries baffles for guiding the ejected crop 15 either out in fan form or in behind the mower for a total swath. The baffles are in two groups interconnected for overall movement. However, it is prescribed that the two groups be moved toward or apart so that the crop is symmetrically ejected relative to the longitudinal center axis of the machine. According to DE Publication No. 196 32 000, the mower is self-propelled and must not be towed by a tractor, when using it does not present the same problems as with a towed mower.

25 Formålet med opfindelsen er at tilvejebringe en slåmaskine af den indledningsvis anførte art med mulighed for at kaste slået materiale bredt ud over marken uden af de nævnte problemer optræder.The object of the invention is to provide a mower of the type initially indicated, with the possibility of throwing struck material wide beyond the field without the aforementioned problems occurring.

Dette opnås ved en slåmaskine der er særegen ved, 30 at der bag kasteorganerne findes en række i det væsentlige lodrette, bagudrettede ledeplader, som strækker sig i kastebanen, at ledepladerne hver især er hængslet for at kunne svinge om en i det væsentlige lodret akse, og at ledepladerne er indbyrdes forbundet til fælles, 35 ensrettet svingning ved hjælp af en aktuator.This is achieved by a mower which is peculiar in that behind the throwing means there are a series of substantially vertical, rearwardly directed baffles extending in the throwing path that the baffles are each hinged to be able to pivot about a substantially vertical axis, and that the baffles are interconnected to joint, unidirectional oscillation by an actuator.

3 DK 173551 B13 DK 173551 B1

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Aktuatoren er fortrinsvis forbundet med en aktua-tor for svingning af trækstangen, og aktuatorerne er fortrinsvis hydraulikcylindre. Derved opnås en synkron bevægelse af trækstangen og ledepladerne.The actuator is preferably connected to an actuator for pivoting the drawbar, and the actuators are preferably hydraulic cylinders. Thereby, a synchronous movement of the drawbar and baffles is obtained.

5 Opfindelsen vil i det følgende blive forklaret nærmere ved hjælp af et eksempel på en udførelsesform under henvisning til den skematiske tegning, på hvilken fig. 1 viser en kendt bugseret slåmaskine med svingbar trækstang, 10 fig. 2 en anden kendt bugseret slåmaskine med svingbar trækstang, fig. 3 en bugseret slåmaskine med svingbar trækstang og udstyret med ledeplader ifølge opfindelsen, fig. 4 et snit lagt langs linien IV-IV i fig. 3, 15 fig. 5 og 6 illustrerer en anden udførelsesform for opfindelsen, og fig. 7 en konstruktiv detalje ved en udførelses-variant.The invention will now be explained in more detail by way of an example of an embodiment with reference to the schematic drawing, in which FIG. 1 shows a known towed mower with pivotal drawbar; FIG. 2 shows another known towed mower with pivotal drawbar; FIG. 3 shows a towed mower with pivotal drawbar and equipped with baffles according to the invention; FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, 15 FIG. 5 and 6 illustrate another embodiment of the invention, and FIGS. 7 shows a constructive detail of an embodiment variant.

Fig. 1 og 2 viser to forskellige, fra henholdsvis 20 DK-B-166 424 og DK-B-170 694 kendte, bugserede slåmaskiner, som hver især har kørehjul 1, en trækstang 2, der i et punkt 3 er hængslet til selve slåmaskinen 4 med mulighed for svingning i vandret plan ved hjælp af en hydraulikcylinder 5, for under arbejde at placere 25 slåmaskinen på den ene eller den anden side af den bugserende traktor 6's {ikke vist i fig. 1) spor. Begge slåmaskinerne har slåorganer 7 og kaste- og konditio-neringsorganer 8 selvom disse dele kun er vist i fig.FIG. 1 and 2 show two different, towed mowers known from DK-B-166 424 and DK-B-170 694, respectively, each having drive wheels 1, a drawbar 2 which is hinged at a point 3 to the mower itself 4 with the possibility of oscillating in the horizontal plane by means of a hydraulic cylinder 5, for placing the mower on one or the other side of the towing tractor 6's (not shown in fig. 1) tracks. Both mowers have mowing means 7 and throwing and conditioning means 8, although these parts are shown only in FIG.

2. Derudover har begge slåmaskiner over og bagude i 30 forhold til kaste- og konditioneringsorganerne 8 en afdækningsskærm 9 med en i forhold til arbej dsbredden begrænset udkaståbning 10 for slået materiale, som derfor udkastes i en samlet skårstreng.2. In addition, both mowers above and backward in relation to the throwing and conditioning means 8 have a cover screen 9 with a limited opening opening 10 for beaten material, which is therefore ejected in a total cutting string.

Den i fig. 3 og 4 viste slåmaskine omfatter de 35 fleste af de under henvisning til fig. 1 og 2 nævnte 4 DK 173551 B1 komponenter; men i stedet for den begrænsede udkaståbning 10 har afdækningsskærmen 9 udkaståbning i hele arbejdsbredden for at kaste slået materiale bredt ud over marken. Slåorganerne 7 er i det viste eksempel 5 roterende knivskiver og kaste- og konditionerings-organerne 8 er i det viste eksempel en kombineret konditionerings- og kasterotor, som delvis omgives af en crimperplade 17, der på kendt vis sikrer god kontakt mellem det slåede materiale og rotoren 8.The FIG. 3 and 4, most of the 35 shown in FIG. 1 and 2 mentioned 4 DK 173551 B1 components; but instead of the limited ejection opening 10, the cover screen 9 has ejection opening throughout the working width for throwing struck material wide beyond the field. In the example shown, the mowing means 7 are rotary cutter blades and the throwing and conditioning means 8 are in the example shown a combined conditioning and throwing rotor, which is partially surrounded by a crimper plate 17 which in a known manner ensures good contact between the struck material and rotors 8.

10 På undersiden af afdækningsskærmen 9 findes ledeplader 11, som under arbejde strækker sig ned i strømmen af kastet, slået materiale. Ledepladerne 11 er hver især hængslet med en lodret hængseltap 12, således at de kan svinges i vandret plan mellem to stillinger, 15 af hvilke den ene i fig. 3 er vist med fuldt optrukket streg og den anden med stiplet streg. De to stillinger anvendes sammen med tilsvarende stillinger for trækstangen 2 der på samme måde er vist med henholdsvis fuldt optrukket og stiplet streg.10 On the underside of the cover screen 9 there are baffles 11 which, during work, extend into the flow of cast, beaten material. The guide plates 11 are each hinged with a vertical hinge pin 12 so that they can be pivoted horizontally between two positions 15, one of which is shown in FIG. 3 is shown in solid line and the other in dotted line. The two positions are used together with corresponding positions for the drawbar 2 which are similarly shown with fully drawn and dashed lines respectively.

20 Ledepladerne 11 har hver især en tap 13 som strækker sig op gennem en spalte 14 i afdækningsskærmen 9 og op i et hul i en over afdækningsskærmen 9 placeret styrestang 15. Denne kan bevæges i sin længde retning ved hjælp af en hydraulikcylinder 16, hvorved ledepla-25 derne 11 bevæges mellem deres to viste stillinger.The guide plates 11 each have a pin 13 extending up through a slot 14 in the cover screen 9 and up into a hole in a guide rod 15 located above the cover screen 9. This can be moved in its longitudinal direction by means of a hydraulic cylinder 16, whereby the guide plate -25 there 11 moves between their two positions shown.

Hydraulikcylinderen 16 er fortrinsvis forbundet parallelt eller i serie med den i fig. 3 ikke viste hydraulikcylinder til svingning af trækstangen 2.The hydraulic cylinder 16 is preferably connected in parallel or in series with that of FIG. 3 not shown hydraulic cylinder for pivoting of the drawbar 2.

Derved opnås at trækstangen 2 og ledepladerne 11 30 bevæges synkront som indikeret i fig. 3.In this way, the drawbar 2 and the baffles 11 30 are obtained in synchronous movement as indicated in FIG. Third

Med den i fig. 3 og 4 viste slåmaskine opnås at udkastet, slået materiale altid kastes lidt ind mod traktorens spor dvs. lidt væk fra den endnu stående afgrøde uanset om slåmaskinen bugseres på den ene eller 35 den anden side af traktorens spor.With the one shown in FIG. 3 and 4, the ejected mowing material is always thrown slightly towards the track of the tractor ie. slightly away from the still standing crop regardless of whether the mower is towed on one or the other side of the tractor track.

r DK 173551 B1 5 I stedet for at være monteret på undersiden af afdækningsskærmen 9 kan ledepladerne 11 eksempelvis være monteret på en vipbar plade 18 for enden af af dækning s skærmen 9 som vist i fig. 4. Denne løsning er 5 genstand for en særskilt patentansøgning indleveret for samme ansøger samme dag som den foreliggende ansøgning.r DK 173551 B1 5 Instead of being mounted on the underside of the cover screen 9, the guide plates 11 may, for example, be mounted on a tiltable plate 18 at the end of the cover 9 screen as shown in FIG. 4. This solution is the subject of a separate patent application filed for the same applicant on the same day as the present application.

I det tilfælde anbringes drejetappene fortrinsvis ved ledepladerne li's bagkant i stedet for ved deres forkant som ved udførelsesformen i fig. 3 og 4.In that case, the pivots are preferably placed at the trailing edge of the guide plates 1, rather than at their leading edge, as in the embodiment of FIG. 3 and 4.

10 I fig. 3 er ledepladerne 11 vist indbyrdes paral lelle. Det skal dog forstås at de alternativt kan være · lidt konvergerende eller divergerende som vist i det indledningsvis nævnte DE-A-31 42 594.10 In FIG. 3, the guide plates 11 are shown in parallel. However, it should be understood that they may alternatively be slightly converging or divergent, as shown in the aforementioned DE-A-31 42 594.

Fig. 7 viser et eksempel på hvorledes man kan opnå 15 forskellige bevægelsesmønstre for de forskellige ledeplader 11', 11". Styrestangen 15 er opdelt i flere styrestangsled 15', som hver især strækker sig mellem to tappe 13', 13" af ledepladerne 11', 11". Idet tappene 13', 13" er placeret i forskellig afstand fra 20 de respektive ledeplader 11', 11" 's hængseltappe 12', 12" vil ledepladerne 11', 11" som vist have forskellig størrelse udsving. Således har den midterste ledeplade 11", hvor afstanden mellem tappen 13" og hængseltappen 12" er mindst, det største udsving.FIG. 7 shows an example of how to achieve 15 different patterns of movement for the different baffles 11 ', 11 ". The guide rod 15 is divided into several guide rod joints 15', each extending between two pins 13 ', 13" of the baffles 11', As the pins 13 ', 13 "are spaced at different distances from the respective baffles 11', 11" 'hinge pins 12', 12 ", the baffles 11 ', 11" will, as shown, have different size fluctuations. middle baffle 11 ", where the distance between the pin 13" and the hinge pin 12 "is the smallest, the largest fluctuation.

Claims

6 DK 173551 B1

A towed mower comprising mowing means (7), throwing means (8) for throwing off the mowing means (7) material backwards onto a throwing path, a guide or cover screen (9) above and backwards for the throwing means (8), and a drawbar (2) by means of which the mower can be coupled to a tractor so that the mower can be towed optionally on one or the other side of the tractor's track during work, characterized in that a row 1, the substantially vertical, rearwardly directed baffles (11) extending in the throw path, the baffles (11) each hinged to pivot about a substantially vertical axis (12), and baffles 15 (11) being interconnected to common, unidirectional oscillation by an actuator (16).

Mower according to claim 1, characterized in that the actuator (16) is connected to an actuator (5) for swinging the drawbar (2).

Mower according to claim 2, characterized in that the actuators (5, 16) are connected hydraulic cylinders.

Mower according to claims 1-3, characterized in that the baffles (11) are parallel to one another.

Mower according to claims 1-3, characterized in that the baffles (11 ', 11 ") are arranged to make different size fluctuations.