DE2101710A1 - A harvesting machine coupled to the front of a tractor - Google Patents

Description

A harvesting machine front-coupled to a tractor The invention relates to a harvesting machine which is front-coupled to a tractor and its weight partly on its own steerable rider and partly on the tractor will.

Harvesting machines, e.g. combine harvesters, as described in patent application AZ P 1925 933.7 can be built in different versions. Disadvantages of these versions are the high manufacturing costs for self-propelled vehicles with the tractor-drawn version the non-existent front cut and with the rear-mounted version the limit in size and weight.

A combine harvester will be described according to the invention, the Weight partly supported on steerable cattle and partly on the tractor will. This support allows larger versions of a harvesting machine with coupled to a tractor that drives the harvesting machine and pushes it across the field Will. The steerable support wheels are according to the invention with a; special device connected to the steering of the tractor, so that the harvester with the tractor forms a maneuverable unit on the attached sketches the harvesting machine described for example.

Fig. 1 t front-coupled combine harvester with a tractor connected steering in straight line. Top view.

Fig. 2: Side view of Fig. 1, combine harvester in working position Fig. 3: Combine harvester wle in rig. 1, but with the tractor's steering wheels turned and the combine harvester. Combine harvester with long-travel device Fig 4 : Side view of Fig. 1, but with the cutting mechanism lifted for transport on the field.

The combine harvester (1) shown in Fig. 1 is with the rear support (2) with the front hitch (3) and the side support (4) with the tractor (5) connected To the maneuverability of the tractor (5) in connection with the Not to impair the combine harvester (1) significantly, the support wheels (6) are steerable connected to the Yjah thresher. The steering of the support wheels (6) is special Device connected to the steering of the tractor To reduce the steering movements of the tractor is an existing or on the steering linkage (7) of the tractor (5) additionally attached lever (8).

A transmission device (9), here for example, is attached to this lever (8) a Bowden cable, attached with a quick-release connection, the corresponding Steering angle directly on the steering linkage of the combine harvester (1) or, as on the Sketches shown, for example, on the control lever (1o) of a hydraulic control valve (11) transmits.

By controlling the control lever (lo) this is done by a hydraulic pump the oil supplied to the control valve (t1) through the hydraulic line (12) accordingly the position of the control lever (to) from left or right in front of the piston (13) of the Hydraulic cylinder (14) pressed. This causes the piston (13) to> the over the solenoid rod (15) and the bracket (16) are firmly connected to the combine harvester (1) is, the hydraulic cylinder (14) according to the position of the control dear (lo) pressed to the left or right, tas from the hydraulic cylinder (14) displaced Ll flows back through line (18) into the oil tank By the fixed Holders (19) on the tractor and (20! On the combine harvester w the control valve (71), which is connected to the tie rod (17) together with the hydraulic cylinder (14), closed by the control lever (lo) as soon as the support wheels (6) turn the steering wheel that is suitable for the angle of the tractor front wheels (21).

Through the connection between the hydraulic cylinder (14 and the tie rod (17) of the combine steering, the movements of the hydraulic cylinder (14) are direct onto the tie rod (17) and from here via the steering triangles (22), the steering push rods (23) and the track lever (24) on the approximately vertical axes (25) of the The support wheels (6) transfer to the different wheelbases and track widths To ensure the steering geometry, the steering linkage of the combine harvester can be adjusted, so that a constant path of the lifting cylinder (14) or the tie rod (17) more or less strong steering angle of the support wheels (6) is achieved. An enlarged or reduced steering angle of the support brackets (6) with a constant travel of the hydraulic cylinder Kaim, for example, reaches Weruen by relocating the holes in the steering triangle (22) for the tie rod (17) and / or the steering push rods (23) or by laying of the articulation point of the steering thrusts (23) in the track levers (24) ..

The support wheels (6) are used in addition to the function described for Steering and support for Höhenetnstellung the combine (1) btw. of the knife bar (26). With one hydraulic lifting cylinder each, which is in or next to the approximately vertical Axes (25) of the support wheels (6) are arranged, the distance between the support wheel attachment (27) on the combine (1) and the axis (28) of the support wheel (6) and thus the distance of the cutter bar (26) to the ground.

The hydraulic lifting cylinders are operated by the tractor driver.

The support wheels (6) are arranged directly in front of the Nesserbalken (26). To avoid the rolling down of unmowed grain, the support wheels (6) behind a divider (29) that divides the grain and pushes it to the side, arranged.

The threshed grains are transported via a conveyor conveyed into the wagon (3c) attached to the tractor.

For transport on public roads, the combine harvester (1) detached from the front of the tractor and by inserting additional support wheels (31) and a drawbar (32) converted into a tractor-drawn trailer, see above that the transport can take place in the longitudinal direction behind the tractor., To achieve The dividers (29) are removed from the smallest possible road transport width and the reel (34) swiveled over the ä.hdrecher (1).

Claims (1)

Claims A harvesting machine coupled to the front of a tractor, for example Combine harvester, the weight of which is partly due to the tractor and partly due to it supports its own support wheels, characterized in that the support wheels are steerable and via a connection with the steering of the tractor unit for the impact Make sure that the steering angle of the tractor's steering wheels is appropriate. 2.) As in claim 1, but additionally characterized in that the steering linkage of the combine harvester to maintain the steering geometry with different Axle positions and track widths can be adjusted so that the steering angle is constant the tractor a more or less strong steering angle of the support or reached is, 3.) As in claim 1, but additionally characterized> that the vertical adjustment of the Nesserbalk is done via the steering support wheels. 4.) As in claim 1, but additionally d a d u r c h g e k e n n that the reel to achieve a smaller transport width over the combine is folded. 5.) As in claim 1, but additionally characterized in that the steerable support wheels are arranged behind one or more dividers so they don't overrun the true of the unseaten grain. 6 *) As in claim 1, but additionally characterized in that Transport by inserting additional wheels and a drawbar in the longitudinal direction with the smallest width.