DK156932B

DK156932B - Field implement with crop gathering device, especially a forage harvester

Info

Publication number: DK156932B
Application number: DK559086A
Authority: DK
Inventors: Jan Freudendahl
Original assignee: Freudendahl J Fab As
Priority date: 1986-11-21
Filing date: 1986-11-21
Publication date: 1989-10-23
Also published as: DK156932C; DK559086D0; DK559086A

Description

DK 156932BDK 156932B

Opfindelsen angâr et markredskab, navnlig gront-hester, udformet til bugsering efter en traktor ved forbindelse til denne over en træk- og drivkraftover-ferende transmissionsindretning, hvorved markredskabet 5 i s in i korselsretningens forreste, mod traktoren ven-dende ende har en afgrodeopsamlingsindretning omfatten-de et fortrinsvis roterende opsamlingsorgan til opsam-ling af skârlagt afgrode samt en efterfolgende indretning til bearbejdning navnlig snitning af det opsamlede 10 materiale og/eller transport af dette til en opsam-lingsvogn, hvorved nævnte afgrodeopsamlingsindretning er vertikalt bevægelig mellem en nedre, afgrodeopsam-lende arbejdsstilling og en ovre transportstilling, hvorhos transmissionsindretningen omfatter en mellem 15 fastgorelsesindretninger pâ traktoren og markredskabet drejeligt forbundet trækstang og et hydraulisk eller mekanisk drivkraftoverforingsarrangement.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a field tool, in particular green horses, designed for towing after a tractor when connected thereto over a traction and thrust transmitting transmission device, wherein the field implement 5 is in the front of the cross direction, facing the tractor, including a crop pickup device. a preferably rotary collecting means for collecting scraped crop and a subsequent device for processing, in particular, sectioning of the collected material and / or transporting it to a collection car, whereby said scrap collection device is vertically movable between a lower, crop collection an operating position and an upper transport position, wherein the transmission device comprises a drawbar rotatably coupled between the tractor and the field implement and a hydraulic or mechanical drive transmission arrangement.

Ved konventionelle bugserede gronthostere forlo-ber transmissionsindretningen, der sædvanligvis omfat-20 ter en trækstang og et antal dertil fastgjorte, indbyr-des forbundne kardanaksler pâ den ene side af afgrode-opsamlingsorganet, sædvanligvis den venstre side set i kerselsretningen, hvilket har den ulempe, at afgrode-opsamlingsorganets tilladelige arbejdsbredde begrænses 25 væsentligt, idet den samlede bredde af det af traktor-og grenthester bestâende koretoj skal overholde myndig-hedernes krav til maksimal koretejsbredde ved transport pâ offentlig vej. Ved konventionelle gronthostere med-forer den nævnte placering af transmissionsindretningen 30 derfor, at afgrodeopsamlingsindretningen kun kan stræk-ke sig over en begrænset del af den maksimale trans-portbredde. Pâ grund af denne begrænsning af afgrode-opsamlingsindretningens bredde vil det sædvanligvis kun være muligt at opsamle én streng skârlagt græs ad gan-35 gen, hvorfor der for at opnâ en tilfredsstillende ud-nyttelse af gronthosterens kapacitet ofte foretages en 4In conventional towed ground harvesters, the transmission device, which usually comprises a drawbar and a number of attached to it, is connected to one end of the crop collecting means, usually the left side seen in the direction of travel, which has the disadvantage. that the permissible working width of the crop gathering body is substantially reduced, the total width of the tractor and miter horse trolley having to comply with the authorities' requirements for maximum trunk width when transported on public roads. In conventional ground hoops, the said location of the transmission device 30 therefore means that the crop pickup device can only extend over a limited part of the maximum transport width. Due to this limitation of the width of the crop pickup device, it will usually only be possible to collect one string of cut grass at a time, so that in order to obtain a satisfactory utilization of the capacity of the greenhouse a 4

DK 156932BDK 156932B

2 forudgâende sammenlægning af to afgrodestrenge ved hjælp af en rive eller lignende forud for gronthoste-rens arbejde. Denne ekstra arbejdsoperation er ikke blot tidkrævende, men medforer ogsâ en væsentlig risiko 5 for, at afbrækkede rivetænder, som senere opsamles af gronthosteren, kan anrette betydelig skade pâ denne.2 prior to merging two crop strands by means of a tear or similar prior to the work of the greenhouse. This extra work operation is not only time-consuming, but also carries a significant risk that broken ruptured teeth, which are later collected by the landowner, can cause significant damage to it.

Med opfindelsen tilsigtes det at frembringe et markredskab, der muliggor en forogelse af afgrodeopsam-lingsindretningens bredde, sâledes at der med et mark-10 redskab af den angivne art, navnlig en gronthoster, pâ én gang kan opsamles og bearbejdes to eller flere strenge skàrlagt afgrode, navnlig græs.It is an object of the invention to provide a field tool which allows for an increase in the width of the crop collection device, so that with a field tool of the specified species, in particular a ground harvester, two or more strands of cropped crop can be collected and processed at one time. , especially grass.

Til opnâelse heraf er markredskabet ifolge opfindelsen ejendommelig ved, at afgrodeopsamiingsindret-15 ningen er udfort med en arbejdsbredde svarende i det væsentlige til den tilladte transportbredde for lande-vejskorsel til opsamling i en arbejdsgang af parallelle strenge af skàrlagt afgrode beliggende dels bag trakto-ren, dels ved siden af denne, og at trækstangen og 20 drivkraftoverforingsarrangementet er forbundet til markredskabet inden for afgrodeopsamlingsindretningens arbejdsbredde pâ en sâdan mâde, at de ikke hindrer . nævnte vertikale bevægelse af afgrodeopsamlingsindret-ningen.In order to achieve this, the field implement according to the invention is peculiar in that the crop pickup device is provided with a working width substantially equal to the allowable transport width for cross-country road crossings for collection in a workflow of parallel strands of cut crop lying behind the tractor, partly adjacent to it, and that the tow bar and the propulsion transmission arrangement are connected to the field implement within the working width of the crop pickup device in such a way that they do not hinder. said vertical movement of the crop collection device.

25 Opfindelsen forklares i det folgende nærmere un- der henvisning til den skematiske tegning, hvor fig. 1 viser som udforelsesform for et markredskab ifolge opfindelsen en af en traktor bugseret gronthoster set ovenfra, 30 fig. 2 en forste udforelsesform for markredska bet med en transmissionsindretning med hydraulisk driv-kraftoverforing, fig. 3 og 4 enkeltheder ved udforelsesformen i fig. 2, og 35 fig. 5 en anden udforelsesform med mekanisk drivkraftoverforing.The invention is explained in more detail below with reference to the schematic drawing, in which fig. 1 is a top plan view of one embodiment of a field implement according to the invention; 2 shows a first embodiment of the field implement with a transmission device with hydraulic drive power transmission; FIG. 3 and 4 are details of the embodiment of FIG. 2, and FIG. 5 shows another embodiment with mechanical drive transmission.

33

DK 156932 BDK 156932 B

Fig. 1 viser et markredskab i form af en grant-haster 2 med en i karselsretningen foranliggende af-gradeopsamlingsindretning 3, forbundet med en traktor l's laftearme og drivkraftudtag ved hjælp af en træk-5 og drivkraftoverfarende transmissionsindretning 5, som i den viste udfarelsesform er fart ovenover afgradeop-samlingsindretningen 3. Det af afgradeopsamlings-indretningen 3 opsamlede materiale i form af skârlagt græs udsættes i granthasteren 2 for en snitning, in-10 den det ved hjælp af en transporter overfares til en arbej dsvogn 4.FIG. 1 shows a field implement in the form of a grate urge 2 with a low-grade gradient collecting device 3 connected to a tractor 1's lifting arms and power take-offs by means of a traction-5 and drive-transmitting transmission device 5, which in the embodiment illustrated is above speed The downgrade collection device 3. The material collected by the downgrade collection device 3 in the form of cut grass is subjected to a cutter in the grater 2 as it is transferred to a working trolley 4 by means of a conveyor.

Den for opfindelsen ejendommelige forbindelse af transmissionsindretningen 5 til markredskabet 2 in-den for afgradeopsamlingsindretningen 3's arbejds- 15 bredde gar det som vist muligt at udfare afgradeopsam-lingsindretningen 3 med en sàdan arbejdsbredde, at den i én operation kan opsamle to strenge skârlagt græs 6, idet bredden af afgredeopsamlingsindretningen 3 kun begrænses af den ved myndighedskrav foreskrevne 20 maksimalt tilladelige bredde af det samlede karetaj for transport ad offentlig vej.The connection of the transmission device 5 of the invention to the field implement 2 which is within the working width of the downgrade collection device 3, as shown, can be excavated by the downgrading collection device 3 with such working width that it can collect in two operations two rigid cut grass 6, the width of the crop pickup device 3 being limited only by the maximum permissible width of the total carriage for public transport prescribed by government requirements.

Som det tydeligst fremgâr af fig. 4, er afgredeopsamlingsindretningen 3, der er forsynet med selv-stændige kerehjul 7 og en i arbejdsbredden udstrakt 25 pick-up-valse 8, bevægelig i vertikal retning mellem en nedre afgradeopsamlende arbejdsstilling, som er vist fuldt optrukket i fig. 4, og en avre transportstilling, som er vist punkteret, og i hvilken kerehjulene 7 og pick-up-valsen 8 er laftet med henblik pà karsel med 30 den med traktoren 1 forbundne granthaster 2 ad offentlig vej. Transmissionsindretningen, som omfatter en trækstang og et drivkraftoverfaringsarrangement, er i det viste eksempel som nævnt fart ovenover afgradeop-samlingsindretningen 3 med en fri hajde, som tillader 35 den nævnte foreskrevne vertikale bevægelse af afgrade-ops amiings indretningen.As can be seen most clearly in FIG. 4, the crop pickup device 3, provided with self-propelled sprockets 7 and a pick-up roller 8 extended in the working width, is movable vertically between a lower downgrade pickup working position, which is shown fully drawn in FIG. 4, and an outer transport position, which is shown to be punctured, in which the sprockets 7 and the pick-up roller 8 are lifted for the purpose of traversing the lathes 2 connected to the tractor 1 by public road. The transmission device, which comprises a tow bar and a thrust transfer arrangement, is in the example shown, as mentioned above, the speed above the downgrade pickup device 3 with a free pitch which allows said vertical movement of the downgrade pickup device.

44

DK 156932 BDK 156932 B

Ved udforelsesformen i fig. 2-4 er drivkraft-overforingsarrangementet hydraulisk og omfatter en med traktorens drivkraftudtag 9 og loftearme 10 forbun-det hydrauliktank il med en indbygget hydraulikpumpe 5 12, som over en transmissionsaksel 13 er forbundet til drivkraftudtaget 9.In the embodiment of FIG. 2-4, the drive transmission arrangement is hydraulic and comprises a hydraulic tank 11 connected to the tractor's drive shaft 9 and ceiling arms 10 with a built-in hydraulic pump 5 12, which is connected to the drive shaft 9 via a transmission shaft 13.

Transmissionsindretningens trækstang 14 er forbundet ved drejeled 15 og 16 med traktoren 1 ved oversiden af tanken 11 og med gronthosteren 2 pâ 10 oversiden af en fast ramme 17 for denne. Fra hydrau-liktanken 11 og pumpen 12 er hydraulikslanger 18 fort indvendigt gennem den som hulprofil udformede trækstang 14 til en hydraulikmotor 19, der tjener som drivorgan for gronthosteren 2 ' s snitteorganer og 15 ovrige arbejdsorganer.The drawbar 14 of the transmission device is connected at rotary joints 15 and 16 to the tractor 1 at the top of the tank 11 and to the ground hoist 2 at 10 the upper side of a fixed frame 17 thereof. From the hydraulic tank 11 and the pump 12, hydraulic hoses 18 are fast inside through the hollow profile draw rod 14 to a hydraulic motor 19 which serves as the driving means for the cutter and cutter members 15 and other working members.

Det opsamlede skârlagte græs fra strengene 6 overfores efter snitning i gronthosteren 2 ved hjælp af transportoren 20 til arbejdsvognen 4, som er koblet til gronthosteren 2 over en trækstang 21.The harvested cut grass from the strings 6 is transmitted after sectioning in the ground hoist 2 by means of the conveyor 20 to the working trolley 4, which is coupled to the ground hoist 2 over a drawbar 21.

20 Drejeleddet 15, over hvilket trækstangen 14 er koblet til traktoren l's loftearme 10, kan, som vist i fig 3, være udfort som et dobbelt drejeled, der tillader drejning om bâde en vandret akse 15a og en lodret akse 15b, hvorved der opnâs den storst mulige 25 relative bevægelighed mellem traktoren 1 og grontho-steren 2. Forbindelsen med traktorens loftearme 10 kan som vist omfatte bærearme 22, som er fastsvejset pâ hver side af tanken il og i den ene ende er sving-bart forbundne med den frie ende af loftearmene 10 30 ved hjælp af drejeled 23, som tillader drejning om en vandret akse pâ tværs af korselsretningen, medens bære-armene 6 i den anden ende er forbundet med den til drejning om en i ko rs els retningen udstrakt vandret akse 15a udformede del af drejeleddet 15. Med denne ud-35 formning er den hydrauliske drivkraftoverforingsindret-ning permanent koblet til gronthosteren 2, sâledes at 5The rotary link 15, over which the drawbar 14 is coupled to the ceiling arms 10 of the tractor 1, can, as shown in Fig. 3, be designed as a double swivel link allowing rotation of both a horizontal axis 15a and a vertical axis 15b, thereby obtaining the As far as possible, relative movement between the tractor 1 and the ground hoist 2. The connection with the tractor ceiling arms 10 may, as shown, comprise support arms 22 which are welded to each side of the tank 1 and at one end are pivotally connected to the free end of the tractor. the ceiling arms 10 30 by means of pivot joints 23, which allow rotation about a horizontal axis transversely of the cross-direction, while the supporting arms 6 at the other end are connected to the portion of a horizontal axis 15a extended in the direction of rotation. rotary link 15. With this design, the hydraulic drive transmission device is permanently coupled to the ground hoist 2, such that 5

DK 156932 BDK 156932 B

der kan opnâs en meget enkel tilkobling til traktoren l's kraftudtag 9 og loftearme 10.a very simple connection can be obtained to the power take-off 9 and tractor arms 10 of the tractor 1.

Til opnâelse af den foreskrevne vertikale bevæ-gelighed er afgrodeopsamlingsindretningen 3, som vist 5 i fig. 4, svingbart understottet ved enderne af udlig-gerarme 24 fra gronthosteren 2's faste ramme 17. I en afstand over den ved drejeled 25 tilvejebragte un-derstotning er afgrodeopsamlingsindretningen 3 over en forbindelsesstang 26 forbundet med arbejdsstemplet 10 i en hydraulisk aktivator 27, ved hjælp af hvilken afgrodeopsamlingsindretningen 3 kan loftes til den punkteret viste transportstilling, hvor korehjulene 7 og pick-up-valsen 8 er loftet til stillinger hen-holdsvis 7' og 8'.To achieve the prescribed vertical movement, the crop pickup device 3, as shown 5 in FIG. 4, pivotally supported at the ends of cantilever arms 24 from the fixed frame 17 of the backhoe 2. At a distance above the support provided by pivot joint 25, the crop collecting device 3 is connected over a connecting rod 26 to the working piston 10 in a hydraulic activator 27. the crop pickup device 3 can be lofted to the punctured transport position shown, the choke wheels 7 and the pick-up roller 8 being the ceilings for positions 7 'and 8' respectively.

15 Ved udf0relsesformen i fig. 5 er drivkraftover- fdringsarrangementet mekanisk og omfatter et antal kar-danaksler 28-31 (fig. 3), som er forbundet i forlæng-else af hinanden ved hjælp af drejeled 32-34. Træk-stangen 35 omfatter en med traktorens l0ftearme 36 20 forbundet skrât opadgâende del 35a og en i det væ-sentlige horisontal, i den foreskrevne frie h0jde over afgrodeopsamlingsindretningen 37 liggende del 35b.15 In the embodiment of FIG. 5, the drive transmission arrangement is mechanical and comprises a plurality of cardan shafts 28-31 (Fig. 3) connected in extension by rotation 32-34. The drawbar 35 comprises a sloping upwardly extending portion 35a of the tractor lifting arm 36 20 and a substantially horizontal portion, in the prescribed free height, above the crop collecting device 37.

Til fremforing af kardanakselarrangementet 28-31 i den foreskrevne frie h0jde over afgredeopsamlingsin-25 dretningen 37 er trækstangen 35 udformet med aksel-gennemf0ringslejer 38-40. Uafhængigt af, om drivkraft-verf0ringsindretningen er udfort mekanisk eller hydraulisk, giver transmissionsindretningen if0lge opfindel-sen sâledes mulighed for udforelse af afgrodeopsamling-30 sindretningen med tilhorende pick-up-valse med en væ-sentlig foroget arbejdsbredde i forhold til konventio-nelle opsamlingsaggregater i gronthostere, idet ar-bejdsbredden kun begrænses af den maksimalt tilladelige transportbredde for landevejstransport, hvorved der mu-35 liggores opsamling i én operation af flere strenge skârlagt afgrode.For advancing the PTO shaft arrangement 28-31 at the prescribed free height above the crop pickup device 37, the drawbar 35 is formed with shaft guide bearings 38-40. Thus, irrespective of whether the power transmission device is designed mechanically or hydraulically, the transmission device according to the invention allows for the embodiment of the crop pickup device with associated pick-up roller with a substantially increased working width in relation to conventional collection units. ground harvesters, the working width being limited only by the maximum permissible transport width for road transport, thereby enabling collection in one operation of several stringent cut crops.

Claims

A field implement, in particular ground hoist (2), designed for towing after a tractor (1) in connection with it over a traction and thrust transmitting transmission device, whereby the field implement at its forward end facing the tractor (1) carried a crop collection device (3) comprising a preferably rotary collection means (8) for collecting cut crop (6) and a subsequent device for processing, in particular, sectioning the collected material and / or transporting it to a collecting trolley (4), wherein said crop collection device (3) is vertically movable between a lower, crop-collecting working position and an upper transport position for road crossings, wherein the transmission device (5) comprises an intermediate fastening device on a the tractor (1) and the field implement (2) pivotally connected tow bar (14) and a hydraulic or mechanical thrust transmission arrangement, characterized in that crop pickup The device (3) is provided with a working width substantially equal to the permissible transport width for road crossings for collection in a workflow of parallel strands of cut crop lying behind the tractor (1) and next to it, and the drawbar (14) and the thrust transmission arrangement are connected to the field implement (2) within the working width of the crop pickup device (3) in such a way that they do not impede said vertical movement of the crop pickup device. DK 156932 B 7

Field equipment according to claim 1, characterized in that both the drawbar (14) and the drive transmission arrangement are passed above the crop collection device (3) with a free height which allows said vertical movement of the crop collection device (3). .

Field equipment according to claim 2, characterized in that the thrust transmission arrangement is hydraulic and comprises a hydraulic tank (11) connected to the traction shaft (9) and ceiling arms (10) of the tractor (1). is connected between swivel joints (15, 16. at the upper side of said tank (11) and on the upper side of a fixed frame (17) for the field implement (2), and that hydraulic hoses (18) are passed from the tank internally through it as a hollow profile designed drawbar (14) for a hydraulic motor (19) on the field implement (2).

Field equipment according to claims 1, 2 or 3, characterized in that the crop collecting device (3) is pivotally supported on the boom arms (24) in the field implement (2) and is connected at a distance above said pivotal support (25). with a preferably urban hydraulic actuator (27) for pivoting the crop pickup device (3) to said transport position.

5. Field implement according to claim 2, characterized in that the thrust transmission arrangement mechanically comprises a plurality of piston shafts (28-31) connected in series and that the drawbar (35) comprises an upwardly inclined portion of the tractor lifting arm (36). 30 (35a) and a substantially horizontal portion (35b) lying at said free height above the crop pickup device (37b), which portions are formed with one or more shaft passages (38-40) for said PTO shafts.