FI56469C - ANORDING FOER IN- OCH URKOPPLING AV EN SKAERMASKIN TILL EN SKOERDETROESKA - Google Patents

Description

~ - I Γη1 ... KU RELEASE PUBLICATION r _ A. _ [] () UTLÄGGN I NGSSKRIFT 56469 C (45) Patent «nön» * tty 11 02 1930 \ 3C £ drJ Patent neddelat v (51) Kv.lk. '/ Int.CI.' A 01 F 12/56 ENGLISH - FINLAND (21) PMenttihakemui - Patentansfl Idling 773398 (22) Hakemlspilvi— Ansttknlngsdag 11.11.77 (23) Alkupllvi — Giltlghetadag 11.11.77 (41) Has become public - Bllvlt offentllg 2.9.05.78

National Board of Patents and Registration .... k ...,, .......

_, (44) Date of publication and of the publication .—

Patent and registration authorities Ansökan utlagd och utl.akrlften publlcerad 31.10.79 (32) (33) (31) Privilege requested —Begird priorltet l8.ll.76 Sweden-Sweden (SE) 7612873-5 (71) Grönbergs Gj'uteri och Kvarnfabrik, Rekordverken AB, Öttum L6, S-530 20 Kvänum, Sweden-Sverige (SE) (72) Sven Grönberg, Kvänum, Sweden-Sverige (SE) (7 ^) Berggren Oy Ab (5 * 0 Device for connecting a cutting machine to a combine harvester and disconnect from it - Anordning för in- och urkoppling av en skärmaskin account en skördetröska

The present invention relates to a device for use in combine harvesters and similar cutting machines, which cutting machine is arranged in connection with the straw outlet of the combine and comprises a rotor provided with a plurality of radially adapted knives and counter-knives adapted to be driven a first pulley driven by the motor, a second pulley adapted to drive the rotor and a freely engaging clutch device arranged between the pulley, the first clutch element and the first pulley being arranged on a freely rotating shaft and the second clutch element and the second pulley being displaceable on the second shaft, along.

The mower must be able to be pushed or turned away from the combine's straw outlet when the straw is to be placed in classes. If, on the other hand, the straw is later chopped for plowing into the ground, the mower is moved below the straw outlet and connected to the combine drive with a drive belt. The mower is connected by means of a handle fitted to it.

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From a safety point of view, it is less desirable to carry out the coupling and uncoupling of the mower so close to a rotor with knives used at very high speeds. The object of the invention is therefore to provide the possibility of coupling and uncoupling a cutting machine at a safe distance from its high-speed rotating knives. In addition, the switching and disconnecting device must be supported so that skew loads on the switching elements cannot occur, which would lead to the development of high frictional heat.

According to the invention, this is solved in such a way that the engagement and disengagement of the coupling elements is arranged to be controlled from the combine driver's cab by the control unit for transmitting both traction and thrust forces. an auxiliary joint with a pusher connected to the articulation for engaging and disengaging the coupling elements, the transmission member being of such a construction that the movement of the control unit substantially perpendicular to the axis results in displacement of the second coupling member along the shaft; to support both the transmission member, the control unit part and the pusher.

The invention will be explained in more detail below with reference to a couple of embodiments shown in the accompanying drawings.

Fig. 1 shows a bottom view of an embodiment of the coupling device, Fig. 2 shows a front view of the coupling device according to Fig. 1, Fig. 3 shows a bottom view of another embodiment of the coupling device, and Fig. 4 shows a front view of the coupling device according to Fig. 3.

The first and second pulleys 11 and 12, respectively, are arranged on the common shaft 10. The first pulley 11 is driven by the combine motor and rotates about the shaft 10, while the second pulley 12 drives the rotor of the mower (not shown) and is torsionally connected to the shaft 10. Both a freely engaging coupling device is arranged between the pulleys 11 and 12, comprising 3 S6469 a first coupling element 13 connected to the first pulley 11 and a second coupling element 14 movably arranged on the shaft 10 and torsionally connected to the shaft.

The engagement and disengagement of the coupling elements 13 and 14 is controlled from the combine driver's cab by a manually controlled control unit, e.g. a cable, which can transmit both traction and thrust forces. According to the embodiment of Figures 1 and 2, a transmission member 9 comprising two joints 16 and 17 is torsionally fitted to the end facing the coupling device of the cable 15. The first joint 16 is rotatably attached at its opposite end to the fixed part 18 of the combine, and the second joint 17 is rotatably attached at its opposite end. to a pusher 19 connected to the second coupling element 14. The pivot shafts 20, 21 and 22 of the joints 16 and 17 are located substantially parallel to each other.

The coupling elements 13 and 14 can also be connected and disconnected by means of a handle 23 which is fixedly connected or can be detachably connected to the pusher 19.

When the cable 15 is pulled, the joints 16 and 17 settle into a V-shaped position with each other, whereby the distance between their ends turned away from the cable 15 decreases. The second clutch element 14 then moves along the shaft 10 to the coupling position with the first clutch element 13, whereby the second pulley 12 and with it the cutting machine are started.

Due to the described arrangement of the joints 16 and 17, the oblique load of the second coupling element 14 cannot be generated when the entire extension from these control units 15 and the pusher 19 is supported by the joint attached to the combine.

According to the embodiment of Figures 3 and 4, the transmission member 9 comprises a two-arm angle lever. At the corner tip of the lever arms 16a, 17a, the angle lever is pivotally mounted on a fixed part of the combine 18, while the lever arm 16a is pivotally mounted at its free end on the end of the cable 15 and the lever arm 17a is pivotally mounted at its free end on the pusher 19. , as shown in Fig. 3, in which the connection lines are shown in solid lines;

Claims (6)

A device for use in combine harvesters or the like, which cutter is arranged in connection with the straw outlet of the combine and comprises a rotor with a plurality of radially matched knives and a counter-knife adapted to be driven by a belt drive by means of a combine motor. a first pulley (11), a second pulley (12) adapted to drive the rotor and a freely engaging coupling device arranged between the pulleys, the first clutch element (13) and the first pulley (11) being arranged on a freely rotating shaft and the second clutch element (14) and the second pulley 12) is torsionally mounted on a shaft, the second coupling element being displaceable along the shaft, characterized in that the coupling and uncoupling of the coupling elements (13, 14) is arranged to be controlled from the combine driver's cab by the control unit (15). a roller for transmitting both traction and thrust forces, the end of the control unit facing the coupling device of which is pivotally attached to a pivoting member (9) mounted on the pivoting combine (18) and provided with an additional joint (17); 17a), to which a pusher is articulated to perform the engagement and disengagement of the coupling elements, the transmission member (9) being designed such that displacement of the control unit (15) substantially perpendicular to the shaft (10) causes displacement of the second coupling element (14) 10), in addition to which the articulated shafts (20, 21, 22) of the transmission member are parallel and the articulated joint (16; 16a) of the combine (18) is adapted to support both the transmission member, the control unit (15) and the pusher (19). Device according to Claim 1, characterized in that the transmission element (9) consists of a pair of joints (16, 17), of which 56469 the first joint (16) is fastened to the rotary combine (18) and the second joint (17) with its head turned away from the control unit (15). is rotatably connected to the second coupling element (14) with its head turned away from the steering unit, the length of the joints being selected so that both joints are in the disengaged position of the coupling device substantially as an extension of each other and in the coupled position the joints are angled against each other and the control device. Device according to claim 1, characterized in that the transmission member (9) is a two-arm angle lever pivotally mounted on the combine (18) at the corner tip between the lever arms (16a, 17a) and on the control unit (15) at the ends of the lever arms (16a, 17a). and a pusher. Device according to one of Claims 1, 2 or 3, characterized in that the control unit (15) is a mechanical transmission, e.g. a cable, a lever system or the like. 4 56469 device disconnected position and dashed line connected position. Of course, the invention is not limited to the embodiments shown, but can be modified within the scope of the claims. For example, the control unit 15 may comprise a hydraulic or pneumatic transmission unit instead of a cable. Device according to one of Claims 1, 2 or 3, characterized in that the control unit (15) is a hydraulic or pneumatic transmission unit. Device according to one of the preceding claims, characterized in that a handle (23) is fixedly connected to the pusher (19) for - coupling and disengaging the coupling elements (13, 14) or can be detached from the detachment by means of which the coupling is directly actuated .