DE3200327A1 - Combine harvester - Google Patents

Abstract

The invention is concerned with the fact that the position of the cleaning or threshing/cleaning device in combine harvesters can be varied in relation to the undercarriage. During travel over uneven ground, a perpendicularity sensor mounted on the undercarriage experiences a deflection in relation to the undercarriage. The deflection is transmitted to the lifting cylinders which are so mounted between the undercarriage and cleaning or threshing/cleaning device that the cleaning or threshing/cleaning device can constantly be maintained in the best possible working position. <IMAGE>

Description

The invention relates to combine harvesters of the construction

pen tangential thresher with the well-known cleaning devices and on axial threshers with the well-known threshing / cleaning devices.

In such combine harvesters, the invention is intended to achieve that the cleaning or threshing / cleaning devices that are in the horizontal or work optimally at a certain angle to the horizontal, always this Maintain position. By leveling out uneven floors - due to hilly terrain, furrows, etc. - by means of a control of the cleaning or Threshing / cleaning equipment it is possible to keep them in their optimal state Able to work and thus reduce the grain losses and the purity of the To increase grain, so far cleaning devices are in tangential threshers and threshing / cleaning devices in axial threshers known in axial threshers, which cannot automatically adapt to uneven floors.

As a result, the cleaning or Threshing / cleaning equipment increased losses when cleaning and separating Grains (e.g. short straw formation, frictional losses on the grain, etc.). I) he The invention is based on the task of combining harvesters known in mountainous terrain to be used in such a way that by controlling the cleaning or threshing / cleaning devices In their optimal working position, the grain losses are reduced and the purity of the threshed material is reduced The object is achieved according to the invention in that uneven floors be balanced so that cleaning or threshing / cleaning facilities are constant be steered into their optimal working position the lifting cylinders of the threshing / cleaning or cleaning devices transfer, which then change their position in relation to the chassis.

The vertical changes in the plumb line in relation to the chassis causes a horizontal change in the cleaning or Uresch / cleaning facilities in relation to the chassis. Threshing / cleaning device the optimal position.

This optimal position corresponds to the normal position when threshing in the plane (horizontal plane).

The advantages achieved by the invention are that the Mowing in uneven terrain, both when driving uphill and downhill and when mowing crossways the grain separation is increased, the grain losses are reduced and the purity is reduced of the grain are increased.

This results in an increase in throughput per unit of time.

The invention is made in the following on the basis of what is shown in the drawing Embodiment explained.

The drawing shows FIG. 1: A schematic representation of the cleaning device in the combine harvester (4), which works in the horizontal plane. The cleaning facility (3) has the normal position. The plumb sensor (5) is in the starting position.

Figure 2: Schematic partial view of a combine harvester (4) in a Ascent. The cleaning device (3) retains the transmission of pulses of the plumb line sensor (5) the normal test position while the chassis is the Adapts to uneven ground. The front lifting cylinders are retracted (1), the rear ones a.sdanger.

Figure 3: Schematic partial view of a combine harvester (4) when traveling downhill. The normal working position is achieved by extending the front (i) and retracting the rear (2) Lift cylinder reached.

This example shows a combine harvester that mows along the slope. When mowing across slopes, the changes in each case analogous to the above examples right and left side of the cleaning devices. The Ubernje between longitudinal and cross-hewing can be designed fluently.

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Claims (7)

PATENT CLAIMS: 1. Combine harvester with a chassis, a mower unit, a threshing unit and cleaning device as well as a combine harvester with a chassis, a mower unit and a threshing / cleaning unit in which the cleaning or Threshing / cleaning devices are adjustable, characterized in that a Plumb sensor is provided, dessin output signal a change in the location of the Peinigungsein directions or the threshing / cleaning equipment. 2. combine harvester according to claim 1, characterized in that the cleaning or threshing / cleaning equipment are not rigidly attached to the chassis, but can be changed in their position via lifting cylinders. 3. Combine harvester according to the above claims, characterized in that a plumb sensor is attached to the rigid part of the chassis. 4, combine harvester according to the above claims, characterized in that the plumb sensor when driving on uneven terrain a deflection in relation to Undercarriage experiences. 5. Combine harvester according to the above claims, characterized in that the plumbing sensor maintains its vertical position when driving on uneven terrain. 6. Combine harvester according to the above claims, characterized in that the deflection of the plumb line sensor in relation to the chassis mechanically, hydraulically, electrically or in some other way a change in the position of the cleaning or Threshing / cleaning equipment causes. 7. Combine harvester according to the above claims, characterized in that the cleaning or threshing / cleaning devices both in the direction of travel and transversely to the direction of travel in their optimal working position automatically depending can be brought by the signals from the plumb line.