专利摘要:
Post-processing device for a forage harvester with two offset processing gaps The invention relates to a post-processing device (34) which can be mounted in a forage harvester (10) downstream of a chopping device (22), with: a first roller (42) and a second roller (44) , which together form a first processing gap for opening up grains contained in the crop flow, a third roller (46) and a fourth roller (48) which together form a second processing gap for opening up grains contained in the crop flow, and a channel through which the crop can flow ( 36), which branches into two subchannels (38, 40) offset from one another in a direction extending transversely to the axes of the rollers (42-48) and transversely to the direction of flow of the harvested material, in each of which one of the processing gaps is located the axes of the rollers (42-48) each extend transversely to the direction of flow of the crop.
公开号:BE1021289B1
申请号:E2011/0502
申请日:2011-08-24
公开日:2015-10-22
发明作者:RAINER SCHäFER
申请人:Deere & Company;
IPC主号:
专利说明:

Post-processing device for a two-offset forage harvester
Bearbeitunasspalten
The invention relates to a post-processing device which can be mounted in a forage harvester downstream of a chopper, comprising: a first roller and a second roller which together form a first machining gap for breaking up grains contained in the crop stream, a third roller and a fourth roller which together forming a second machining gap for opening up grains contained in the crop stream, and a channel through which crop can branch, which branches into two subchannels, in each of which one of the machining gaps is located, wherein the axes of the rolls each extend transversely to the flow direction of the crop.
State of the art
When harvesting corn plants used as feed for animals, the crop is usually processed downstream of a chopper by a post-processing device in such a way that the grains contained in the crop are struck or digested so that they can be better digested. Such post-processing devices are also referred to as grain processors or conditioners, and typically comprise two counter-biased rolls forming a machining nip through which the crop passes.
In the currently increasing drive power and throughputs of forage harvesters, the post-processing facilities prove to be a limiting element, because their width can not be arbitrarily increased due to the predetermined width of the forage harvester.
Embodiments of post-processing devices having two or more machining gaps successive in the direction of flow of material for improving the degree of disintegration have been described (DE 195 38 199 A1, DE 10 2007 018 885 A1, DE 10 2007 038 092 A1). The possible throughput is not increased here, but there is a tightening of the already existing, unwanted post-shredding of the stalk and leaf parts of the plants instead of the two-stage passing of the machining column.
In DE 10 2008 017 365 A1 it is proposed to arrange two each of four rolls of the post-processing device next to each other, wherein the machining gaps formed by two rolls are offset laterally next to one another or in the direction of crop flow or are arranged at an obtuse angle to each other in the manner of a V. Here, only the latter embodiment increases the effective length of the rollers and thus the possible throughput, but only to a small extent.
The problem underlying the invention is seen to provide a post-processing device for a forage harvester, which allows a significant increase in capacity for a given width.
This problem is inventively solved by the teaching of claim 1, wherein in the other claims features are listed, which further develop the solution in an advantageous manner.
A post-processing device for attachment in a forage harvester downstream of a chopping device comprises a crop through-flow channel which branches into two subchannels. A first roller and a second roller together form a first machining gap arranged in the first subchannel for breaking up grains contained in the crop stream in order to deposit grains contained in the crop and to improve the digestibility of the feed produced by the livestock. A third roller and a fourth roller together form a second machining gap arranged in the second subchannel for breaking up grains contained in the crop stream, likewise to deposit grains contained in the crop and to improve the digestibility of the feed produced by the livestock. The axes of the rolls each extend transversely to the flow direction of the crop in the respective subchannel, and the subchannels are offset from one another in a direction extending transversely to the axes of the rolls and transversely to the flow direction of the crop.
Since in a forage harvester the crop discharged from the chopper is usually discharged counter to the forward direction backwards or upwards or in a direction lying between these directions and flows in this direction through the subchannels, the subchannels are not arranged side by side in the lateral direction, as in The prior art according to DE 10 2008 017 365 A1, but in relation to the forward direction of the forage harvester one above the other and / or arranged one behind the other. Thus, with a given width of the post-processing device, effectively twice the width is available for the processing column. In this way, the maximum possible throughput can be significantly increased.
The subchannels are preferably separated on the input side in the region adjacent to the chopping device by a separating wedge with a leading tip. Accordingly, the tip extends horizontally and may be positioned as close as possible to the chopping device, so that the latter, during operation, can remove the crop residue that accumulates at the tip.
In a preferred embodiment, the separating wedge is pivotable about an axis extending parallel to the axes of the rollers between an operative position and an inoperative position. This makes it possible to open a subchannel in the operating position of the separating wedge for Emtegut and close in the inoperative position of the separating wedge, if no post-processing of Emteguts is desired, such as in the grass harvest. If the pivoting range of the separating wedge is not sufficient to completely close the subchannel in the inoperative position, the latter can be completely closed by a flap. The rollers associated with the subchannel which can not be closed by the separating wedge can be taken out of the forage harvester together or individually in a manner known per se and replaced by an empty shaft or shaft provided with a drivable conveying device. It should also be noted that the subchannel to be closed can be closed by a suitable flap instead of a movable separating wedge, which can in particular be rotatably mounted around the axis of rotation of the chopping device. Then, the tip of the rigid separating wedge can be placed as close as possible to the chopper, so that the latter removes the accumulated crop residues there.
The first machining gap can be arranged in the flow direction of the crop (or in the forward direction of the forage harvester) in front of or behind the second machining gap. In addition, one of the subchannels may be associated with a separate conveyor arranged downstream or upstream of the machining gap in order to avoid undesired crop accumulation. This separate conveying device is preferably associated with the subchannel which can be at least partially closed by the separating wedge (and / or one of the flaps mentioned above). As a result, the rolls associated with the non-closable (in particular lower) subchannel can be arranged at a relatively easily accessible location at the rear of the rolls associated with the closable subchannel, which facilitates their installation and removal. Also, this sub-channel can be added before the rollers, a separate conveyor.
In the drawings, two embodiments of the invention described in more detail below are shown. It shows:
Figure 1 is a schematic side view of a forage harvester with a post-processing device.
2 is an enlarged side view of the post-processing device of Figure 1,
Fig. 3 is a side view of a second embodiment of a post-processing device, and
Fig. 4 is a side view of the post-processing device of Figure 3 in the inoperative position with closed upper sub-channel and disassembled rollers of the lower sub-channel.
FIG. 1 shows a self-propelled forage harvester 10 in a schematic side view. The forage harvester 10 is built on a frame 12 supported by front driven wheels 14 and steerable rear wheels 16. The operation of the forage harvester 10 takes place from a driver's cab 18, from which a harvesting attachment 20 in the form of a mowing header for the corn harvest can be viewed. By means of the header 20 picked up from the ground crop, z. As grass or the like is fed via a feed conveyor with upper feed rollers 30 and lower Vorpresswalzen 32, which are arranged within a feed housing on the front side of the forage harvester 10, arranged below the driver's cab 18 chopper 22 in the form of a chopper drum, which it into small pieces chops and gives it a conveyor 24 gives up. The material leaves the working machine 10 to a traveling transport vehicle via a discharge chute 28 and about an approximately vertical axis rotatable and adjustable in inclination Auswurfkrümmer 26. Hereinafter, directional terms, such as side, bottom and top, refer to the forward movement direction V of the forage harvester 10, which runs in the figure 1 to the left.
Between the chopper drum 22 and the conveying device 24, a post-processing device 34 is arranged. The post-processing device 34 shown enlarged in FIG. 2 comprises a channel 36 which guides the crop from the chopper 22 to the conveyor 24, which adjoins the housing of the chopper 22 and splits immediately downstream of the chopper 22 into a lower subchannel 38 and an upper subchannel 40 , The upper subchannel 40 is disposed above the lower subchannel 38. Both subchannels 38, 40 open into the housing of the conveyor 24. The width of the subchannels 38, 40 may be constant over their length (then the chopper 22, the post-processing device 34 and the conveyor 24 are each the same width) or the sub-channels 38, 40th may narrow in the flow direction of the crop (then the chopper 22 is wider than rollers 44-48 of the post-processor 34, which in turn are wider than the conveyor 24 or as wide as the conveyor 24). The sub-channels 38, 40 are separated on the input side by a separating wedge 50 with a front tip 52 extending horizontally across the width of the post-processing device 34, which is adjacent to the enveloping circle of the chopping device 22 with a certain distance. The subchannels 38, 40 are usually rectangular in cross section and each guide about half of the Erntegutstroms in their interior.
For post-processing of the crop, a first roller 42 and a second roller 44 with horizontally and transversely to the forward direction V (and transverse to the flow direction of the crop) extending axes in the upper sub-channel 40 are arranged. In the illustrated embodiment, they are approximately in the region of a bend in the upper subchannel 40, which rises more steeply upstream of the rollers 42, 44 than behind the rollers 42, 44. The rollers 42, 44 can rotate in opposite directions in a manner known per se be driven at different speeds. Between the rollers 42, 44, a first machining gap is formed, through which the crop flowing in the upper subchannel 40 is passed in order to strike grains contained in the crop for the purpose of better digestibility. The rollers 42, 44 may be smooth or roughened and / or extending over the width and / or in the circumferential direction profiling, for. B. with saw teeth or rectangular elevations, have. Downstream of the rollers 42, 44, the upper subchannel 40 tilts slightly down to give the crop of the conveyor 24 tangent.
The lower subchannel 38 extends obliquely upwardly and rearwardly downstream of its inlet and includes in its rearward region a third roller 46 and a fourth roller 48 having axes extending horizontally and transversely of the forward direction V (and transversely of the flow direction of the crop) their construction and their operation with the rollers 42, 44 of the upper sub-channel 40 are similar and form a second machining gap (with a laterally narrowing in the flow direction channel 36, the rollers 46, 48 but shorter than the rollers 42, 44). Downstream of the rollers 46, 48 opens the lower sub-channel 38 (below the mouth of the upper sub-channel 40) in the housing of the conveyor 24, the rotating conveyor element is acted upon tangentially.
The embodiment of Figure 3 differs from the embodiment of Figure 2 by the addition of a conveyor 54 which is inserted downstream of the rollers 42,44 in the upper subchannel and cooperates from above with the Erntegutstrom. The conveyor 54 is designed as a conveyor roller and improves the Erntegutförderung immediately upstream of the mouth of the upper sub-channel 40th
Since no finishing of the crop material is provided in the grass seed, the post-processing device 34 can be brought into the inoperative division shown in FIG. In the inoperative position, the wedge 50 is pivoted upwards about the axis of rotation of the lower roller 44 of the upper subchannel until it directly adjoins the enveloping circle of the chopper device 22. The remaining inlet gap of the upper sub-channel 40 is closed by a flap 56. The Emtegut is thus promoted only by the lower sub-channel 38, which is not problematic due to the usually relatively low flow rates in the grass harvest. The rollers 46, 48 of the lower sub-channel 38 have been removed and replaced by a shaft 58 with four walls. In this case, the rollers 46, 48 can be completely removed from the forage harvester 10 or they remain below and at the rear of the shaft 58 on board. In the embodiment of Figure 2, the conversion takes place in the decommissioning analog.
By dividing the Emtegutstroms downstream of the chopper 22 in two above and behind each other arranged sub-channels 38, 40 which are offset in a transverse to the axes of the rollers 42 to 48 and transverse to the flow direction of the crop against each other, the width of the machining gap is compared a conventional embodiment with only one pair of rollers doubles, which increases the capacity of the post-processing device 34 substantially. It should also be noted that a further increase in the capacity would be possible by dividing the rollers 42 to 48 into two, arranged in V-shape rolls whose longitudinal axes are at an acute or obtuse angle to the flow direction of Emteguts and the forward direction of the forage harvester 10 can extend.
权利要求:
Claims (10)
[1]
claims
A post-processing device (34) attachable in a forage harvester (10) downstream of a chopper means (22), comprising: a first roller (42) and a second roller (44) which together define a first machining gap for breaking up the crop stream Forming grains, a third roller (46) and a fourth roller (48), which together form a second machining gap for breaking up grains contained in the Emtegutstrom, and an emtygut durchströmbaren channel (36), which in two subchannels (38, 40 ), in each of which one of the machining gaps is located, wherein the axes of the rollers (42-48) each extend transversely to the flow direction of the crop, characterized in that the subchannels (38,40) in a transverse to the axes of the Rollers (42-48) and transversely to the flow direction of the Emteguts extending direction are offset from each other.
[2]
2. post-processing device (34) according to claim 1, characterized in that the sub-channels (38, 40) on the input side by a separating wedge (50) with a leading tip (52) are separated.
[3]
3. post-processing device (34) according to claim 2, characterized in that the separating wedge (50) about an axis parallel to the axes of the rollers (42-48) extending axis between an operating position and an inoperative position is pivotable, wherein the separating wedge (50). in the inoperative position at least partially closes one of the subchannels (40).
[4]
4. post-processing device (34) according to claim 3, characterized in that in the inoperative position of the separating wedge (50) partially closed sub-channel (40) by a flap (56) is completely closable.
[5]
5. post-processing device (34) according to claim 3 or 4, characterized in that the not by the separating wedge (50) closable subchannel (38) associated rollers (46,48) are jointly or individually disassembled.
[6]
6. post-processing device (34) according to one of claims 1 to 5, characterized in that a lower sub-channel (38) in the vertical direction below an upper sub-channel (40) is arranged.
[7]
7. post-processing device (34) according to one of claims 1 to 6, characterized in that the first machining gap is arranged in the flow direction of the crop in front of or behind the second machining gap.
[8]
8. post-processing device (34) according to one of claims 1 to 7, characterized in that at least one of the subchannels (38, 40) is associated with a downstream or upstream of the machining gap arranged, separate conveyor (54).
[9]
9. post-processing device (34) according to claim 8, when appended to claim 3 or one dependent claim, characterized in that the separate conveyor (54) by the separating wedge (50) at least partially closable subchannel (40) is associated.
[10]
10. Forage harvester (10) having a chopper device (22), a downstream of the chopper (22) arranged post-processing device (34) according to one of the preceding claims and a downstream of the post-processing device (34) arranged conveying device (24) having a discharge chute (28). and follow a chute (26).
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同族专利:
公开号 | 公开日
DE102010040106B4|2020-01-16|
DE102010040106A1|2012-03-01|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
DE19538199A1|1995-10-13|1997-04-17|Fortschritt Erntemaschinen|Straw-chopping machine with conditioning rollers|
DE102008017365A1|2008-04-04|2009-10-08|Claas Selbstfahrende Erntemaschinen Gmbh|Conditioning device for a harvester|
DE102007018885A1|2007-04-19|2008-10-23|Claas Selbstfahrende Erntemaschinen Gmbh|Agricultural working machine|
DE102007038092A1|2007-08-11|2009-02-12|Claas Selbstfahrende Erntemaschinen Gmbh|Conditioning device for a forage harvester|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
DE100401064|2010-09-01|
DE102010040106.4A|DE102010040106B4|2010-09-01|2010-09-01|Post-processing device for a forage harvester with two offset processing columns|
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