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Combine harvester with a knife drum

A cutting knife and harvesting table technology, which is applied in the direction of harvesters, cutters, agricultural machinery and implements, etc., can solve the problems of not being used to maintain the inclination angle of the shredder, complicated technology, etc.

Inactive Publication Date: 2014-04-16
CNH BELGIUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In EP-A-1483953 a hydraulic cylinder is provided to adjust the height of the shredder, but its control is technically complex for maintaining the cutting height in headers of different heights
None of these combines have provisions for maintaining the angle of inclination of the chopper

Method used

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  • Combine harvester with a knife drum
  • Combine harvester with a knife drum
  • Combine harvester with a knife drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Figure 1a The following parts of a combine harvester comprising a lifting system according to the invention are represented: a header 1 having a front cutting device 2 comprising two sets of knives, the two sets of knives relative to each other, driven by a gearbox with rotating input and output shafts, which moves back and forth (also known as a rocker box). Furthermore, the feeder mechanism 3 is shown, the header is connected to the front part of this feeder mechanism 3, and the rear part of this feeder mechanism 3 is connected to the frame of the combine. The feeder 3 is pivotable about a horizontal transverse axis 30 by means of a hydraulic lift system. This lifting system is not visible in the figure: it is arranged behind the front wheels 4 of the combine harvester. A shredder 5 is attached to the rear of the header. It comprises a housing 6 in which a cutter drum 7 of the shredder is rotatably arranged. The cutter drum is driven by a drive mechanism, eg a mot...

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PUM

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Abstract

The invention relates to an agricultural machine that is suitable for the harvesting of grain-like crops, comprising a header (1), attached to the front of the machine at adjustable height, the header comprising a first cutting device (2) whose position is determined by the adjustable height of the header, and a second cutting device (7), comprising a knife drum (7) that is rotatably mounted in a housing (6), which via rollers (8) or equivalent support means can move over the ground at different heights of the header, and wherein the housing (6) of the knife drum on the back of the header (1) is connected via at least two coupling systems (10), each of these systems comprising a lower and an upper support arm (15, 16), which are pivotally connected to the header, and with the housing of the knife drum, whereby the position of the housing (6); remains substantially unaltered by the different height settings of the header (1).

Description

technical field [0001] The present invention relates to agricultural machines, in particular to combines equipped with a double cutting system for cutting crops at two different heights. Background technique [0002] When harvesting cereal type crops by modern combine harvesters, one may try to harvest only the upper part of the crop, ie the ear and (as small as possible) upper part of the stalk. Thus, during harvesting, the header is raised by the hydraulic lift system to a sufficient height from the ground for the front cutter blades of the header to cut the stalks at a relatively high height. The disadvantage of this method is that the longer stalk remains in the field compared to the normal method in which it is lowered to the ground for harvesting. These longer stalks cause mildew when they are left in the field and are difficult to plow off. [0003] Harvesters have therefore been developed to have two rows of cutter blades positioned at a lower height than the front...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D34/835
CPCA01D34/8355
Inventor D·O·M·费尔哈格B·M·A·米索滕N·奥勒维特S·约恩克海勒T·威廉斯J·海恩斯
Owner CNH BELGIUM