DK159470B

DK159470B - DENTAL TRANSMISSIONS FOR STRAWBERRY AND LEAF MATERIAL IN AGRICULTURE

Info

Publication number: DK159470B
Application number: DK121085A
Authority: DK
Inventors: Hans Rauch
Original assignee: Claas Saulgau Gmbh
Priority date: 1984-03-27
Filing date: 1985-03-18
Publication date: 1990-10-22
Also published as: DK121085A; HUT39054A; DK159470C; DE3411164A1; CH671318A5; ATA32085A; HU193950B; AT389420B; DE3411164C2; DK121085D0

Description

i DK 159470 Βin DK 159470 Β

Opfindelsen angår et transportapparat, som er udformet som en roterende tandtransportør til landbrugshøstmaskiner til halm- og bladmateriale i henhold til indledningen til krav 1.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a conveying apparatus configured as a rotary tooth conveyor for agricultural harvesting machines for straw and leaf material according to the preamble of claim 1.

Udformninger af denne art kendes eksempelvis fra DE-brugsmønster 5 18.93.335 og US-patentskrift 27.55.912. Med henblik på en gunstig bøj ningsbelastning samt også pladsbetinget er den i forhold til tandtransportørens omdrejningsakse ekscentrisk anbragte tap til styrestangslejringen meget kort. Dermed kan styrestangslejerne, som er anbragt ved siden af hinanden på tappen, også kun have en lille bredde. Dette med-10 fører imidlertid, at styrestangslejerne, som af plads- og omkostningsmæssige grunde er udformet som glidelejer, ved rotationsbevægelsen på tappen er udsat for en høj fladebelastning og dermed slides hurtigt. De skal derfor hyppigt udskiftes.Designs of this kind are known, for example, from DE usage pattern 5 18.93.335 and US patent 27.55.912. With a view to a favorable bending load and also space-dependent, the pin to the guide rod bearing is eccentrically arranged relative to the axis of rotation of the tooth conveyor. Thus, the guide rod bearings, which are arranged side by side on the pin, can also only have a small width. However, this means that the guide rod bearings, which are designed as sliding bearings for space and cost reasons, are subjected to a high surface load by the rotational movement of the pin and thus wear out quickly. They must therefore be replaced frequently.

Til grund for opfindelsen ligger der den erkendelse, at sliddet på 15 styrestangslejerne også ved forøgelse af tandtransportørens omløbsomdrejningstal kan reduceres væsentligt, hvis styrestangslejerne ikke længere udfører den af tandtransportørens rotationsbevægelse betingede drejebevægelse, men kun den af tandstyringen betingede lille svingbevægelse på tappen. Dette opnås ifølge opfindelsen ved foranstaltninger 20 som anført i den kendetegnende del i krav 1 og i en yderligere udformning som anført med ejendommelighederne i krav 2. Ved en udformning og anbringelse af tappen for styrestangslejerne ifølge krav 3 opnås en særligt gunstig lejring af tandtransportøren samt ved tandtransportørens transportbevægelse en meget gunstig belastning af tapfastgørelsen 25 på maskinrammen.In accordance with the invention, it is recognized that the wear of the guide rod bearings can also be significantly reduced by increasing the rotational speed of the tooth conveyor if the guide rod bearings no longer carry out the rotational movement conditioned by the tooth conveyor, but only the small pivotal movement required by the tooth guide. This is achieved according to the invention by measures 20 as stated in the characterizing part of claim 1 and in a further embodiment as indicated by the features of claim 2. By designing and positioning the pin for the guide rod bearings according to claim 3, a particularly favorable bearing of the tooth conveyor is obtained and by the conveyor movement of the tooth conveyor a very favorable load on the pin attachment 25 to the machine frame.

På tegningen vises et udførelseseksempel for opfindelsen i skematisk gengivelse og beskrives nærmere i det følgende. På tegningen viser: fig. 1 en på en landbrugslæssevogn anvendt roterende tandtrans-30 portør i tværsnit, fig. 2 tandtransportøren set i pilretningen A på fig. 1, og fig. 3 detaljen B på fig. 2 i forstørret snitgengivelse.In the drawing, an exemplary embodiment of the invention is shown in schematic representation and will be described in more detail below. In the drawing: FIG. 1 is a cross-sectional view of a rotary tooth conveyor used on an agricultural trailer; FIG. 2 shows the tooth conveyor in the direction of arrow A in FIG. 1, and FIG. 3 shows detail B of FIG. 2 in enlarged sectional view.

Det på fig. 1 viste transportapparat er (som anvendelseseksempel) tilsluttet på frontsiden 1 af en ikke nærmere vist læssevogn 2 af gængs 35 konstruktion, dvs. med opsamlertromle 3 og skrabebund 4, på en sådan - 2 -The FIG. 1 is (as an example of application) connected to the front side 1 of a not shown loading trailer 2 of conventional construction, ie. with collector drum 3 and scraper bottom 4, on such a - 2 -

DK 159470 BDK 159470 B

måde, at trans port tænderne 5 griber ind i transportkanalen 6 og ved deres transportbevægelse løber forbi knivene 7, som rager ind i transportkanalen 6. Trans port tænderne 5 er med afstand fastgjort ved siden af hinanden på tandakslerne 8, som er lejret drejeligt i sideplader 15, 5 16 for et roterende drevet, fælles centralrør 12. Tandakslerne 8 er forbundet med styrearme 9, på hvilke der virker styrestænger 10, som sammen er lejret drejeligt på en tap 11, som stationært er anbragt eks-centrisk i forhold til centralrøret 12. Ved tændernes 5 omdrejning på omløbsbanen 13 for tandakslerne 8 styres tænderne således, at deres 10 tandspidser beskriver den stiplet antydede kurvebane 14. Tappen 11 fastholdes med den ene ende i maskinrammen 17 således, at den ikke kan drejes, og er på den anden ende forbundet med et lejeelement 19, som ligger ekscentrisk i forhold til tappens længdeakse 18, med to i aksial afstand anbragte rullelejer. Centralrøret 12 er med den ene ende lejret 15 drejeligt på dette lejeelement 19 og med den anden ende via et rulleleje 20 på maskinrammen 17 samt drevet omløbende via et kædehjul 21, som får sin drivkraft fra en ikke nærmere betegnet kraftkilde i læssevognen.in that the transport teeth 5 engage in the transport channel 6 and, in their transport movement, pass by the blades 7 which project into the transport channel 6. The transport teeth 5 are spaced apart adjacent to each other on the tooth shafts 8, which are rotatably mounted in side plates 15, 5 16 for a rotary driven common central pipe 12. The tooth shafts 8 are connected to guide arms 9 on which actuate control rods 10, which together are pivotally mounted on a pin 11 which is stationary arranged eccentrically with respect to the central pipe 12. At the rotation of the teeth 5 on the orbit 13 of the tooth shafts 8, the teeth are guided such that their 10 tooth tips describe the dotted indicated curve path 14. The pin 11 is retained at one end in the machine frame 17 so that it cannot be turned and is at the other end. connected by a bearing element 19, which is eccentric to the longitudinal axis 18 of the pin, with two axially spaced roller bearings. The central pipe 12 is pivotally mounted on one end of this bearing element 19 with one end, and with the other end via a roller bearing 20 on the machine frame 17 and driven circumferentially via a sprocket 21, which derives its driving force from an unspecified source of power in the loading trolley.

Ifølge opfindelsen er styrestængerne 10 lejret svingeligt via gli-20 delejer 23 på en fælles bøsning 24, som atter er lejret drejeligt på tappen 11 via nålelejer 25.According to the invention, the guide rods 10 are pivotally mounted via slide 20 bearing 23 on a common bushing 24, which is again pivotally mounted on the pin 11 via needle bearings 25.

Claims

1. Transport apparatus, - which is designed as a rotary tooth conveyor for agricultural straw and leaf material with several spaced apart from a common central shaft and rotary drive about this rotatably mounted toothed shaft with guide arms, on which to rotate the 5 shaft engaging teeth act on control rods, which are together rotatably mounted on a stationary, relative to the rotary axis of the tooth conveyor eccentrically arranged pin, characterized in that the guide rods (10) are pivotally mounted side by side on a common bushing (24), which is mounted pivotally on the pin (11).

Transport device according to claim 1, characterized in that the guide rods (10) are mounted on the bushing (24) with sliding bearings (23) and that the bushing (24) is mounted on the pin (11) with needle bearings (25).

Transport apparatus according to claim 1, characterized in that the pin (11) is connected at one end to the machine frame (17) and at the other side is connected to a bearing element (19) which is eccentric to the longitudinal axis of the pin (18). ), having a length of at least 2/3 of the length of the pin (11), the central shaft (12) of the tooth conveyor being pivotally mounted at one end on this bearing element (19) and at the other end of the machine frame (17) and being connected to a drive (21).