CA2200066A1 - Self-propelled harvester - Google Patents
Self-propelled harvesterInfo
- Publication number
- CA2200066A1 CA2200066A1 CA 2200066 CA2200066A CA2200066A1 CA 2200066 A1 CA2200066 A1 CA 2200066A1 CA 2200066 CA2200066 CA 2200066 CA 2200066 A CA2200066 A CA 2200066A CA 2200066 A1 CA2200066 A1 CA 2200066A1
- Authority
- CA
- Canada
- Prior art keywords
- harvested crop
- rollers
- drive
- self
- processing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D43/00—Mowers combined with apparatus performing additional operations while mowing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The invention concerns a self-propelled harvester (1), in particular for harvesting green fodder, with a cutter (2) to cut the plants, a processing device (4) to process the plants, a compression device (7) to compress the plants into a mat and a delivery device (8.1) to lay the mat of plants on the field. The harvester is characterized, amongst other things, in that a device (5.3, 7.1) designed to assist the flow of cut plants through the harvester is located in front of a plant-conveying or processing device.
Description
- 2 ~ O O 0 6 6 SAME S.p.A. F 94!052 PCT
Self-propelled harvester Description The invention concerns a self-propelled harvester, in particular for crop harvesting including green fodder, according to the description of claim 1.
Such a self-propelled harvester is, for example, ]~nown from the European Patent Application 0 408 850 Al. In the case of the harvester described and shown in this document, the harvested crop is cut by a mower, treated by a processing device, collected in a buffer space and moved on, metered by a feed-regulating roller, to a pressing device where, from the processed harvested crop by means of the pressing device, a mat is pressed which at the end of the harvester is put down on the field. Such a harvester realized in practice has indeed proven itself, however, it has turned out that the construction cost for the buffer space with the feed-regulating roller is high and that, due to the metering, the throughput capacity was limited.
The object of the invention is therefore to demonstrate, compared to the known self-propelled harvester, improvement possibilities and designs with which the processing of the harvested crop is improved and the throughput capacity is increased respectively.
This problem is solved by means of the features of claim 1.
A device supporting the flow of harvested crop is arranged Amended page SAME S.p.A. ~ i F 94/052 PCT
PCT/EP 95/01~27 between the conveying device and the processing device. In this way, the throughput capacity is increased and the processing of the harvested crop improved since the speed of the flow of harvested crop can be adjusted by the device, supporting the flow of harvested crop, between the device arranged at the front and at the back. For this purpose, it is moreover provided according to the invention that the drive of the device supporting the flow of harvested crop takes place synchronous to the drive of the device arranged at the front and at the back. By synchronous, it is here to be understood that, for example, the drive of the device, supporting the flow of harvested crop, and of the device, arranged at the front and at the back, set the same rotational speed of the devices from which, due to the construction of the device, the same or different circumferential speeds can be obtained, in which case it is moreover conceivable that different rotational speeds are set from which again the same or different circumferential speeds result. Advantageously, the synchronous drive (that is, the setting of the rotational speeds) takes place in such a way that the circumferential speeds, in particular starting with the conveying device, increase in the further direction of the flow of harvested crop. However, it is also conceivable, as a function of the volume of the harvested crop which is conveyed and processed respectively, to slow down the harvested crop before a device by means of the device supporting the flow of harvested crop, in order to avoid in tl1is way possible blockages or excessive loads which can lead to a reduction in the efficiency of the device.
The device supporting the flow of harvested crop has at least two Amended page SAME S.p.A. F 94/052 PCT
Self-propelled harvester Description The invention concerns a self-propelled harvester, in particular for crop harvesting including green fodder, according to the description of claim 1.
Such a self-propelled harvester is, for example, ]~nown from the European Patent Application 0 408 850 Al. In the case of the harvester described and shown in this document, the harvested crop is cut by a mower, treated by a processing device, collected in a buffer space and moved on, metered by a feed-regulating roller, to a pressing device where, from the processed harvested crop by means of the pressing device, a mat is pressed which at the end of the harvester is put down on the field. Such a harvester realized in practice has indeed proven itself, however, it has turned out that the construction cost for the buffer space with the feed-regulating roller is high and that, due to the metering, the throughput capacity was limited.
The object of the invention is therefore to demonstrate, compared to the known self-propelled harvester, improvement possibilities and designs with which the processing of the harvested crop is improved and the throughput capacity is increased respectively.
This problem is solved by means of the features of claim 1.
A device supporting the flow of harvested crop is arranged Amended page SAME S.p.A. ~ i F 94/052 PCT
PCT/EP 95/01~27 between the conveying device and the processing device. In this way, the throughput capacity is increased and the processing of the harvested crop improved since the speed of the flow of harvested crop can be adjusted by the device, supporting the flow of harvested crop, between the device arranged at the front and at the back. For this purpose, it is moreover provided according to the invention that the drive of the device supporting the flow of harvested crop takes place synchronous to the drive of the device arranged at the front and at the back. By synchronous, it is here to be understood that, for example, the drive of the device, supporting the flow of harvested crop, and of the device, arranged at the front and at the back, set the same rotational speed of the devices from which, due to the construction of the device, the same or different circumferential speeds can be obtained, in which case it is moreover conceivable that different rotational speeds are set from which again the same or different circumferential speeds result. Advantageously, the synchronous drive (that is, the setting of the rotational speeds) takes place in such a way that the circumferential speeds, in particular starting with the conveying device, increase in the further direction of the flow of harvested crop. However, it is also conceivable, as a function of the volume of the harvested crop which is conveyed and processed respectively, to slow down the harvested crop before a device by means of the device supporting the flow of harvested crop, in order to avoid in tl1is way possible blockages or excessive loads which can lead to a reduction in the efficiency of the device.
The device supporting the flow of harvested crop has at least two Amended page SAME S.p.A. F 94/052 PCT
rollers co-ordinated with one another which form a gap, in particular a changeable or adjustable gap, through which the harvested crop passes. Longitudinal cross-pieces, partial longitudinal cross-pieces or tines or brushes can be arranged on these rollers in order to support the transport of the harvested crop. The gap can be changed or adjusted for the transport of variable volumes of the harvested crop. For the one-time adjust-ment, designs are provided which set and maintain the gap size in which case the setting takes place in particular as a function of the type of harvested crop. For the changeable setting of the gap, designs are provided in which, for example, one roller is fixed and the other roller, for example, is movable hydraulically or through spring loading. In this case, stops can be provided which define a minimum and a maximum gap size. Moreover, a control can be provided which changes the gap as function of the volume of the harvested crop and, in addition to that, as a function of the type of harvested crop.
In a particular embodiment of the invention, at least two rollers co-ordinated with one another are designed as feed rollers and arranged in the area between the discharge area of the conveying device and the entry area of the processing device. In another particular embodiment, at least two rollers co-ordinated with one another are designed as pre-pressing rollers and arranged in the area before the entry area of the pressing device. Such an arrangement or embodiment has the advantage that in the first place the conveying and processing speed respectively of the conveying and processing device is adapted by the feed rollers since the harvested crop is accelerated (possibly slowed down) Amended page -- 2 ~ O ~ O ~ 6 SAME S.p.A. F 94/052 PCT
In a particular embodiment of the invention, at least two rollers co-ordinated with one another are designed as feed rollers and arranged in the area between the discharge area of the conveying device and the entry area of the processing device. In another particular embodiment, at least two rollers co-ordinated with one another are designed as pre-pressing rollers and arranged in the area before the entry area of the pressing device. Such an arrangement or embodiment has the advantage that in the first place the conveying and processing speed respectively of the conveying and processing device is adapted by the feed rollers since the harvested crop is accelerated (possibly slowed down) Amended page -- 2 ~ O ~ O ~ 6 SAME S.p.A. F 94/052 PCT
from the speed of the conveying device to the speed of the processing device. In this way, the throughput capacity (through-flow of harvested crop~ is optimized and increased respectively. In the second place, the processed harvested crop is pre-pressed by the pre-pressing rollers so that in this way the throughput capacity of the pressing device can be increased.
For a better understanding of the invention it is in addition described that the drive of the device takes place in a way ]~nown by itself from an internal combustion engine in which case the drive is predominantly designed as belt drive and the devices can be turned on or off at least in some cases simultaneously via a central coupling or separately from one another via intermediate couplings. The design of the drive as belt drive has the advantage that thereby the individual devices can be operated reliably, the belt drive is robust and at the same time cost efficient. Over and above that, different rotational speeds can be set in a simple way by changing the belt pulleys.
Furthermore, the central coupling and intermediate couplings respectively can be made in a simple way by means of pressure pulleys. In addition, variable rotational speeds are also conceivable by means of the belt drive. In a first embodiment, the internal combustion engine can thus, for example, be connected with a flywheel mass which at its output end has a central coupling with which tl~e subsequent devices in their totality can be turned on and off respectively. This has the advantage that all devices can be controlled centrally so that the flow of harvested crop can be stopped or started. In another embodiment, the devices can at least sometimes be turned on and Amended page - 2~0Q~6 SAME S.p.A. F 94/052 PCT
PCT/EP 95/01"27 off separately from one another via intermediate couplings. This embodiment has the advantage that as a function of the flow of harvested crop some devices can be turned off while other devices continue to operate. Thus, for example, at the end of the field, the cutting and conveying devices can be turned off when no more crop is cut, while the processing device and the pressing device still continue to operate and process the rest of the harvested crop. It is also conceivable to arrange idling and reversing devices in the drive train in order, for example, to reverse the drive in case of overloading (blockage) of a device, to eliminate the overload. Advantageously, the reversal of rotation takes place only briefly.
The drive of the cutting device, the conveying device, the processing device as well as a distribution arrangement and a device supporting the flow of harvested crop is carried out from the internal combustion engine through the intermediary of at least one gear or an intermediate coupling. Thus, a first practical realization of the drive train is provided which has proven to be optimal for the processing of the harvested crop since, through the intermediary of the gear (for example, realized by different belt pulleys on the devices) and through the intermediary of intermediate couplings, the increasing circumferential speed of the individual devices in the direction of the flow of the harvested crop can be achieved. Therefore, it is thus realized that the drive of a device (in particular the drive of the device supporting the flow of harvested crop) takes place synchronous to the drive of the device arranged at the front and at the back.
Amended page o ~ ~
SAME S.p.A. F 94/052 PCT
For a better understanding of the invention it is in addition described that the drive of the device takes place in a way ]~nown by itself from an internal combustion engine in which case the drive is predominantly designed as belt drive and the devices can be turned on or off at least in some cases simultaneously via a central coupling or separately from one another via intermediate couplings. The design of the drive as belt drive has the advantage that thereby the individual devices can be operated reliably, the belt drive is robust and at the same time cost efficient. Over and above that, different rotational speeds can be set in a simple way by changing the belt pulleys.
Furthermore, the central coupling and intermediate couplings respectively can be made in a simple way by means of pressure pulleys. In addition, variable rotational speeds are also conceivable by means of the belt drive. In a first embodiment, the internal combustion engine can thus, for example, be connected with a flywheel mass which at its output end has a central coupling with which tl~e subsequent devices in their totality can be turned on and off respectively. This has the advantage that all devices can be controlled centrally so that the flow of harvested crop can be stopped or started. In another embodiment, the devices can at least sometimes be turned on and Amended page - 2~0Q~6 SAME S.p.A. F 94/052 PCT
PCT/EP 95/01"27 off separately from one another via intermediate couplings. This embodiment has the advantage that as a function of the flow of harvested crop some devices can be turned off while other devices continue to operate. Thus, for example, at the end of the field, the cutting and conveying devices can be turned off when no more crop is cut, while the processing device and the pressing device still continue to operate and process the rest of the harvested crop. It is also conceivable to arrange idling and reversing devices in the drive train in order, for example, to reverse the drive in case of overloading (blockage) of a device, to eliminate the overload. Advantageously, the reversal of rotation takes place only briefly.
The drive of the cutting device, the conveying device, the processing device as well as a distribution arrangement and a device supporting the flow of harvested crop is carried out from the internal combustion engine through the intermediary of at least one gear or an intermediate coupling. Thus, a first practical realization of the drive train is provided which has proven to be optimal for the processing of the harvested crop since, through the intermediary of the gear (for example, realized by different belt pulleys on the devices) and through the intermediary of intermediate couplings, the increasing circumferential speed of the individual devices in the direction of the flow of the harvested crop can be achieved. Therefore, it is thus realized that the drive of a device (in particular the drive of the device supporting the flow of harvested crop) takes place synchronous to the drive of the device arranged at the front and at the back.
Amended page o ~ ~
SAME S.p.A. F 94/052 PCT
In addition to this, it is provided that the drive of at least the pressing device and the depositing device takes place from a drive unit for the propulsion of the harvester through the inter-mediary of at least one coupling. This type of drive has the advantage that the pressing device and the depositing device are at least always operated when the harvester is moving. It is also conceivable to operate then at least the pressing device and the depositing device when the harvester is stationary.
In another embodiment, the belt drive of one device takes place from one side of a device arranged to the front and to the back respectively and/or the belt output for a device arranged to the front and to the back respectively and/or for another part of the device itself takes place separately from the other side of the device. Thus, for example, the drive of a device takes place from the right side, viewed in the direction of travel of the harvester, in which case the output for another device ta]~es place from the left side of this device. This has the advantage that the belt drive is distributed over both sides of the devices and thus the available space is optimally utilized.
Moreover, it is provided that the drive (rotational speed of the devices) can be changed as a function of the type and the volume of the harvested crop respectively and that the rotational speeds of the devices can be changed interdependently or independently.
By means of this (one-time or automatic control) setting of the rotational speeds and the resulting circumferential speeds and conveying or processing speeds respectively of the individual Amended page 2 ~
SAME S.p.A. F 94/052 PCT
In another embodiment, the belt drive of one device takes place from one side of a device arranged to the front and to the back respectively and/or the belt output for a device arranged to the front and to the back respectively and/or for another part of the device itself takes place separately from the other side of the device. Thus, for example, the drive of a device takes place from the right side, viewed in the direction of travel of the harvester, in which case the output for another device ta]~es place from the left side of this device. This has the advantage that the belt drive is distributed over both sides of the devices and thus the available space is optimally utilized.
Moreover, it is provided that the drive (rotational speed of the devices) can be changed as a function of the type and the volume of the harvested crop respectively and that the rotational speeds of the devices can be changed interdependently or independently.
By means of this (one-time or automatic control) setting of the rotational speeds and the resulting circumferential speeds and conveying or processing speeds respectively of the individual Amended page 2 ~
SAME S.p.A. F 94/052 PCT
devices, these can be adjusted to one another in order to synchronize the output of the individual devices with one another and thus to create the optimum through-flow of the harvested crop.
The designs according to the invention are shown in concrete exemplified embodiments in the figures and elucidated in detail in the following.
Here:
Fig. 1 shows a self-propelled harvester, Fig. 2 shows a drive diagram, Fig. 3 shows a processing device, Fig. 4 shows a detail view of the processing device.
Fig. 1 shows a self-propelled harvester 1, in particular for green fodder, which has a cutting device 2 (represented schematically) for cutting the crop, a processing device, which consists of a central roller 5.1 as well as several planetary rollers 5.2 in which case the rollers have different circumferential speeds and are driven in opposing directions, for processing the harvested crop and a conveyer belt 6 which adjoins the processing device and which to (sic) a pressing device, which consists of at least two press rollers 7 forming a gap, for the pressing of the harvested crop to a mat and a device 8.1 to deposit the mats onto the field. The cutting device 2 is advantageously a rotary grass cutter which is installed in a trough with the addition of a feed screw 3, in which case the trough advantageously is a component from the harvester-thresher Amended page o ~ 0 SAME S.p.A. F 9~/052 PCT
PCT/~P 95/01427 sector. This trough can be attached to a not shown conveying channel into which a conveying device 4 is integrated in which case the conveying device 4 advantageously is a chain conveyer, likewise from the harvester-thresher sector, which transports the crop cut by the cutting device 2 in the direction of the processing device. The removability of the trough at the entry of the conveying channel has the advantage that, in addition to the rotary grass cutter, other mowers can also be attached in which case the selection of the to-be-attached mower follows as a function of the harvested crop.
As is shown in Fig. 1, a device, supporting the flow of harvested crop, in the form of two rollers 5.3 co-ordinated with one another are arranged between the conveying device 4 and the processing device. These at least two rollers 5.3 co-ordinated with one another have an opposing direction of rotation in which case this direction of rotation is oriented in such a way that the harvested crop is transported from the conveying device 4 to the entry area of the processing device. In this case, the drive of the feed rollers 5.3 ta]~es place in such a way that both feed rollers have the same circumferential speed whereby, through this circumferential speed, the harvested crop is transported at the same, reduced or increased speed. In a particular embodiment, an acceleration of the harvested crop occurs from the conveying device 4 in the direction of the processing device.
In an alternative embodiment of tlle invention, the two rollers co-ordinated with one another are designed as pre-pressing rollers 7.1 and arranged in the area before the entry area of tlle Amended page 2~00~6 SAME S.p.A. F 94/052 PCT
_ g _ pressing device (of the press rollers 7). Such an arrangement has the advantage that in the first place, the speed of the flow of harvested crop in this area can be adjusted with the pre-pressing rollers 7.1 and, in the second place, the harvested crop is pre-pressed in which case this pre-pressing is carried out with a lower pressure than in the subsequent pressing device (or maybe vice versa).
The harvester 1 has furthermore a driver's cabin 10, wheel units 11 and an internal combustion engine 12 as well as a fuel tank 13.
In Fig. 1, an embodiment of a distribution arrangement is moreover shown, which adjoins the processing device in which case the distribution arrangement has a tine roller 20, on the periph-eral surface of which tines are arranged which, for example, have a triangular cross-section, with a guiding device 22 arranyed behind it. The guiding device 22 consists of a distribution plate 23 on which, perpendicular to the surface, cross-pieces are arranged. The distribution plate 23 extends at least over the width of the processing device, advantageously, however, over the width of the pressing device and the conveyer belt 6 respectively. The harvested crop provided by the processing device is picked up by the tines of the rotating tine roller 20 and slung against the guiding device 22, that is, against the bottom side of the distribution plate 23 on which the cross-pieces are arranged. In this case, the rotational speed of the tine roller 20 can be selected in such a way that the speed of the harvested crop, at which it leaves the processing device, is Amended page fi SAME S.p.A. F 94/052 PCT
PCT/EP 95/01'127 increased, reduced or kept constant.
In order to swing the guiding device 22 at least partly, in particular completely, out of the flow of harvested crop, the guiding device 22 is for one thing attached by a pivot 25 to an arm 26. It is also conceivable to swing the guidiny device 22 out of the flow of harvested crop only by the pivot 25 or only hy means of an elevator. In addition to this, the guiding device 22 is mounted spring loaded (not shown) on the pivot 25. By means of this spring tension (compression spring), the guiding device is kept in a specific position in which case, however, in case of an increased volume of harvested crop, the guiding device 22 can at least partly be swung, around the pivot 25 against the spring tension, out of the flow of harvested crop. The distribution arrangement can also form an independent unit which, for example, can be removed completely for maintenance work. The harvested crop thus coming from the processing device is transported by the tine roller 20 and the adjoining guiding device 22, supporting the direction of movement of the conveyer belt 6, towards the pressing device. In this case, the pressing device can also form an independent and not further described unit whicll li]~ewise can be replaced. Moreover, it is practically feasible that the conveyer belt is either led around two independent rollers or that a roller, around which the conveyer belt 6 is led, is at least one of the press rollers 7 (as, for example, is shown in Fig. 1). At this point, it should be mentioned that the pressing device can also have more than two pairs of press rollers 7. In a preferred embodiment of the invention, the width of the processing device is smaller than the width of the pressing Amended page SAME S.p.A. F 9~/052 PCT
device and the latter again smaller than the width of the cutting device.
Fig. 2 shows a drive diagram for the self-propelled harvester.
Here, it is shown that the drive of the devices ta]~es place in a way known in itself from an internal combustion engine (represented by an output shaft 40) in which case the drive is predominantly designed as belt drive (represented as solid and dashed line respectively) and the devices can be turned on or off at least in some cases simultaneously via a central coupling, or separately from one another via intermediate couplings. Thus, it is shown in Fig. 2 that the drive leads from the drive shaft 40 via a belt drive to a flywheel 41 in which case, through movement of a pressure pulley 42, a central coupling is realized. From the flywheel 41, other belt drives take place to the tine roller 20, to the central roller 5.1, the planetary rollers 5.2 and the feed rollers 5.3. Another belt drive leads to a driving pulley 4.1 of the conveying device 4. From here, another belt drive leads to the feed screw 3 and another belt drive via a miter gear 2.1 to the cutting device 2. In the area of the mentioned and shown belt drives, other pressure pulleys 42 are arranged which either have as function to tighten the belts or have as function to realize an intermediate coupling in order to turn on and off respectively the drive of tlle particular device. The representation of the belt drive in the form of a solid or dashed line means in Fig. 2 that the belt drive in one represented form (solid line) is arranged on one side of the harvester l and the other represented form (dashed line) on the other side of -the harvester. Generally, this means thus that the belt drive of at Amended page - ~o~
SAME S.p.A. F 94/052 PCT
PCT/EP 95/01~27 least one device takes place from one side of a device arranged to the front and to the back respectively and/or the belt output for a device arranged to the front and to the back respectively and/or for another part of the device itself takes place separately from the other side of the device. Thus, for example, the central roller 5.1 can be driven from one side in which case a further planetary roller 5.2 is likewise driven from this side.
The drive of the two other planetary rollers then takes place from the other side of the central roller 5.1.
Moreover, it is shown in Fig. 2 that the drive of the conveyer belt 6, the pressing device (press rollers 7 and pre-pressing rollers 7.1) and of the depositing device 8.1 takes place from a drive unit for the propulsion of the harvester through the inter-mediary of at least one coupling. Thus, for example, the not shown internal combustion engine operates a hydraulic pump for a hydrostat in which case the drive of the self-propelled harvester takes place via this hydrostat. From this drive unit (hydrostat~, the drive of the pressing device and the conveyer belt as well as of the depositing device takes place via a not shown intermediate coupling via an articulated shaft 43 and a chain 44. This drive diagram has the advantage that the depositing of the pressed harvested crop in the form of a mat takes place synchronous to the traveling speed of the harvester.
In another preferred embodiment of the invention, the drive for the harvester itself can likewise be disengaged so that in case the harvester is stationary or only moves slowly, the drive at least for the pressing device is ensured, that is, that the drive continues to operate. The drive of the depositing device 8.1 Amended page SAME S.p.A. F 94/052 PCT
P(~T/EP 95/01427 again takes place via a belt drive which starts from the press rollers 7.
Fig. 3 shows a processing device which in the shown embodiment again consists of the central roller 5.1 as well as three planetary rollers 5.2. All components belonging to the processing device are assembled in a compact way to the unit 50.
In the installed position, in the lower area of the outer periphery, several planetary rollers 5.2 extending close -to the central roller 5.1 are co-ordinated with the centrally arranged central roller 5.1. The distance between the planetary rollers 5.2 and the central roller 5.1 is set to decrease progressively, starting from the inlet up to the outlet. For this purpose, the planetary rollers 5.2 can each at the ends be mounted rotatably in a rocker arm 51 on both ends of the unit 50, in which case the setting of the distance takes place by turning the roc]~er arm 51 around a pivot 52. To set the distance, an adjustment unit is used which, on the one hand, is attached to the end of -the roc]~er arm 51 opposite the pivot 52 and, on the other hand, is attached via a spring 53 to a stop 54, for example, on the frame of -the unit 50, in which case the spring 53 also serves as safety mechanism for stray objects so that the planetary roller can be swung away if a stray object moves into the gap. This adjustment unit can, for example, be designed as a screw in order to change the distance. The spring loading by means of the spring 53 has the advantage that in case there are stray objects in the harvested crop, the flow of harvested crop through the processing device is not adversely affected. Before the entry area of -the harvested crop into the processing device, feed rollers 5.3 are Amended page 6 ~
SAME S.p.A. F 94/052 PCT
indicated in Fig. 3, in which case the distance between the two feed rollers 5.3 can advantageously be set to a constant value.
Thus, for example, one feed roller 5.3 is fixed while the co-ordinated feed roller 5.3 can just like the planetary rollers 5.2 be set.
Fig. 4 shows a detail view of the processing device, in which case the components shown in Fig. 4 can be used in the case of at least one planetary roller but also for the other rollers (for example, feed rollers 5.3 or press rollers 7 or pre-pressing rollers 7.1). The adjustment device shown in Fig. 4 serves in principle to accurately adjust a roller in relation to a co-ordinated roller in order to optimize in this way the efficiency and the throughput capacity of the particular device (in this case the processing device), in particular as a function of the type of harvested crop.
As already shown and described in Fig. 3, the setting of the distance between the central roller 5.1 and the planetary rollers 5.2 takes place via the rocker arm 51 which can be swiveled around the pivot 52. Here, the distance of the rollers to one another is set similarly. The setting of a minimum distance is carried out via a screw 61 which is screwed into a screw holder 60 and of which the head serves as spacer. In order to ensure in addition to this an individual setting of each planetary roller 5.2, at least one planetary roller 5.2 is at the end mounted in a bearing plate 55 which can be adjusted via a differential screw 56 after fastening screws 57 have been loosened, with which the bearing plate 55 is attached to the Amended page SAME S.p.A. F 94/052 PCT
rocker arm 51. To shift the bearing plate 55, oblong holes or large-dimensioned borings are provided in the area of the fastening screws 57. By the term differential screw, such a screw is to be understood which has two different threads 561 and 562 which have different pitches, in which case the thread 562 away from the head of the differential screw 56 has a smaller diameter than the thread 561. To adjust the distance by shifting the bearing plate 55, the differential screw 56 with the thread 561 is for one thing screwed into a stop 563 with internal thread, in which case the stop 563 is attached to the rocker arm 51. Another stop 564 with internal thread is arranged on the bearing plate 55 so that after loosening the fastening screws 57 by turning the differential screw 56, the distance between the roller 5.1 and the planetary roller 5.2 can be adjusted accurate-ly. After fastening the bearing plate 55 to the rocker arm 51 by means of the fastening screws 57, the distance has a basic setting which then can still be further changed by swiveling the rocker arm 51 around the pivot 52. Further, in Fig. ~ it is also shown that a belt 59 runs around a pressure pulley 58, in which case the belt 59 leads to other planetary rollers 5.2 (or also to other rollers). In addition to the setting of the distance, provisions can also be made, in case the central roller 5 1 and/or the planetary rollers 5.2 are profiled on their surface, to provide a possibility for adjustment and setting respectively through shifting in the direction of the longitudinal axis of tlle rollers.
It should also be pointed out that the drive diagram shown in Fig. 2 and the construction shown in Figs. 3 and ~ are not only Amended page a~
SAME S.p.A. F 94/052 PCT
applicable to the described devices, but are also applicable ~o constructions of other designs which fulfill the same function.
Thus, for example, it is conceivable that the processing device operates according to the tandem roller technique and, alternatively to this, the pressing device has a central press roller around which several planetary press rollers are arranged.
For the description of the mode of operation of the processing device according to the principle shown in Figs. 2 and 3, reference should be also be made here to the German Application P
41 33 759 (date of filing: 02.10.1991), in which the processing of the harvested crop is described.
Amended page
The designs according to the invention are shown in concrete exemplified embodiments in the figures and elucidated in detail in the following.
Here:
Fig. 1 shows a self-propelled harvester, Fig. 2 shows a drive diagram, Fig. 3 shows a processing device, Fig. 4 shows a detail view of the processing device.
Fig. 1 shows a self-propelled harvester 1, in particular for green fodder, which has a cutting device 2 (represented schematically) for cutting the crop, a processing device, which consists of a central roller 5.1 as well as several planetary rollers 5.2 in which case the rollers have different circumferential speeds and are driven in opposing directions, for processing the harvested crop and a conveyer belt 6 which adjoins the processing device and which to (sic) a pressing device, which consists of at least two press rollers 7 forming a gap, for the pressing of the harvested crop to a mat and a device 8.1 to deposit the mats onto the field. The cutting device 2 is advantageously a rotary grass cutter which is installed in a trough with the addition of a feed screw 3, in which case the trough advantageously is a component from the harvester-thresher Amended page o ~ 0 SAME S.p.A. F 9~/052 PCT
PCT/~P 95/01427 sector. This trough can be attached to a not shown conveying channel into which a conveying device 4 is integrated in which case the conveying device 4 advantageously is a chain conveyer, likewise from the harvester-thresher sector, which transports the crop cut by the cutting device 2 in the direction of the processing device. The removability of the trough at the entry of the conveying channel has the advantage that, in addition to the rotary grass cutter, other mowers can also be attached in which case the selection of the to-be-attached mower follows as a function of the harvested crop.
As is shown in Fig. 1, a device, supporting the flow of harvested crop, in the form of two rollers 5.3 co-ordinated with one another are arranged between the conveying device 4 and the processing device. These at least two rollers 5.3 co-ordinated with one another have an opposing direction of rotation in which case this direction of rotation is oriented in such a way that the harvested crop is transported from the conveying device 4 to the entry area of the processing device. In this case, the drive of the feed rollers 5.3 ta]~es place in such a way that both feed rollers have the same circumferential speed whereby, through this circumferential speed, the harvested crop is transported at the same, reduced or increased speed. In a particular embodiment, an acceleration of the harvested crop occurs from the conveying device 4 in the direction of the processing device.
In an alternative embodiment of tlle invention, the two rollers co-ordinated with one another are designed as pre-pressing rollers 7.1 and arranged in the area before the entry area of tlle Amended page 2~00~6 SAME S.p.A. F 94/052 PCT
_ g _ pressing device (of the press rollers 7). Such an arrangement has the advantage that in the first place, the speed of the flow of harvested crop in this area can be adjusted with the pre-pressing rollers 7.1 and, in the second place, the harvested crop is pre-pressed in which case this pre-pressing is carried out with a lower pressure than in the subsequent pressing device (or maybe vice versa).
The harvester 1 has furthermore a driver's cabin 10, wheel units 11 and an internal combustion engine 12 as well as a fuel tank 13.
In Fig. 1, an embodiment of a distribution arrangement is moreover shown, which adjoins the processing device in which case the distribution arrangement has a tine roller 20, on the periph-eral surface of which tines are arranged which, for example, have a triangular cross-section, with a guiding device 22 arranyed behind it. The guiding device 22 consists of a distribution plate 23 on which, perpendicular to the surface, cross-pieces are arranged. The distribution plate 23 extends at least over the width of the processing device, advantageously, however, over the width of the pressing device and the conveyer belt 6 respectively. The harvested crop provided by the processing device is picked up by the tines of the rotating tine roller 20 and slung against the guiding device 22, that is, against the bottom side of the distribution plate 23 on which the cross-pieces are arranged. In this case, the rotational speed of the tine roller 20 can be selected in such a way that the speed of the harvested crop, at which it leaves the processing device, is Amended page fi SAME S.p.A. F 94/052 PCT
PCT/EP 95/01'127 increased, reduced or kept constant.
In order to swing the guiding device 22 at least partly, in particular completely, out of the flow of harvested crop, the guiding device 22 is for one thing attached by a pivot 25 to an arm 26. It is also conceivable to swing the guidiny device 22 out of the flow of harvested crop only by the pivot 25 or only hy means of an elevator. In addition to this, the guiding device 22 is mounted spring loaded (not shown) on the pivot 25. By means of this spring tension (compression spring), the guiding device is kept in a specific position in which case, however, in case of an increased volume of harvested crop, the guiding device 22 can at least partly be swung, around the pivot 25 against the spring tension, out of the flow of harvested crop. The distribution arrangement can also form an independent unit which, for example, can be removed completely for maintenance work. The harvested crop thus coming from the processing device is transported by the tine roller 20 and the adjoining guiding device 22, supporting the direction of movement of the conveyer belt 6, towards the pressing device. In this case, the pressing device can also form an independent and not further described unit whicll li]~ewise can be replaced. Moreover, it is practically feasible that the conveyer belt is either led around two independent rollers or that a roller, around which the conveyer belt 6 is led, is at least one of the press rollers 7 (as, for example, is shown in Fig. 1). At this point, it should be mentioned that the pressing device can also have more than two pairs of press rollers 7. In a preferred embodiment of the invention, the width of the processing device is smaller than the width of the pressing Amended page SAME S.p.A. F 9~/052 PCT
device and the latter again smaller than the width of the cutting device.
Fig. 2 shows a drive diagram for the self-propelled harvester.
Here, it is shown that the drive of the devices ta]~es place in a way known in itself from an internal combustion engine (represented by an output shaft 40) in which case the drive is predominantly designed as belt drive (represented as solid and dashed line respectively) and the devices can be turned on or off at least in some cases simultaneously via a central coupling, or separately from one another via intermediate couplings. Thus, it is shown in Fig. 2 that the drive leads from the drive shaft 40 via a belt drive to a flywheel 41 in which case, through movement of a pressure pulley 42, a central coupling is realized. From the flywheel 41, other belt drives take place to the tine roller 20, to the central roller 5.1, the planetary rollers 5.2 and the feed rollers 5.3. Another belt drive leads to a driving pulley 4.1 of the conveying device 4. From here, another belt drive leads to the feed screw 3 and another belt drive via a miter gear 2.1 to the cutting device 2. In the area of the mentioned and shown belt drives, other pressure pulleys 42 are arranged which either have as function to tighten the belts or have as function to realize an intermediate coupling in order to turn on and off respectively the drive of tlle particular device. The representation of the belt drive in the form of a solid or dashed line means in Fig. 2 that the belt drive in one represented form (solid line) is arranged on one side of the harvester l and the other represented form (dashed line) on the other side of -the harvester. Generally, this means thus that the belt drive of at Amended page - ~o~
SAME S.p.A. F 94/052 PCT
PCT/EP 95/01~27 least one device takes place from one side of a device arranged to the front and to the back respectively and/or the belt output for a device arranged to the front and to the back respectively and/or for another part of the device itself takes place separately from the other side of the device. Thus, for example, the central roller 5.1 can be driven from one side in which case a further planetary roller 5.2 is likewise driven from this side.
The drive of the two other planetary rollers then takes place from the other side of the central roller 5.1.
Moreover, it is shown in Fig. 2 that the drive of the conveyer belt 6, the pressing device (press rollers 7 and pre-pressing rollers 7.1) and of the depositing device 8.1 takes place from a drive unit for the propulsion of the harvester through the inter-mediary of at least one coupling. Thus, for example, the not shown internal combustion engine operates a hydraulic pump for a hydrostat in which case the drive of the self-propelled harvester takes place via this hydrostat. From this drive unit (hydrostat~, the drive of the pressing device and the conveyer belt as well as of the depositing device takes place via a not shown intermediate coupling via an articulated shaft 43 and a chain 44. This drive diagram has the advantage that the depositing of the pressed harvested crop in the form of a mat takes place synchronous to the traveling speed of the harvester.
In another preferred embodiment of the invention, the drive for the harvester itself can likewise be disengaged so that in case the harvester is stationary or only moves slowly, the drive at least for the pressing device is ensured, that is, that the drive continues to operate. The drive of the depositing device 8.1 Amended page SAME S.p.A. F 94/052 PCT
P(~T/EP 95/01427 again takes place via a belt drive which starts from the press rollers 7.
Fig. 3 shows a processing device which in the shown embodiment again consists of the central roller 5.1 as well as three planetary rollers 5.2. All components belonging to the processing device are assembled in a compact way to the unit 50.
In the installed position, in the lower area of the outer periphery, several planetary rollers 5.2 extending close -to the central roller 5.1 are co-ordinated with the centrally arranged central roller 5.1. The distance between the planetary rollers 5.2 and the central roller 5.1 is set to decrease progressively, starting from the inlet up to the outlet. For this purpose, the planetary rollers 5.2 can each at the ends be mounted rotatably in a rocker arm 51 on both ends of the unit 50, in which case the setting of the distance takes place by turning the roc]~er arm 51 around a pivot 52. To set the distance, an adjustment unit is used which, on the one hand, is attached to the end of -the roc]~er arm 51 opposite the pivot 52 and, on the other hand, is attached via a spring 53 to a stop 54, for example, on the frame of -the unit 50, in which case the spring 53 also serves as safety mechanism for stray objects so that the planetary roller can be swung away if a stray object moves into the gap. This adjustment unit can, for example, be designed as a screw in order to change the distance. The spring loading by means of the spring 53 has the advantage that in case there are stray objects in the harvested crop, the flow of harvested crop through the processing device is not adversely affected. Before the entry area of -the harvested crop into the processing device, feed rollers 5.3 are Amended page 6 ~
SAME S.p.A. F 94/052 PCT
indicated in Fig. 3, in which case the distance between the two feed rollers 5.3 can advantageously be set to a constant value.
Thus, for example, one feed roller 5.3 is fixed while the co-ordinated feed roller 5.3 can just like the planetary rollers 5.2 be set.
Fig. 4 shows a detail view of the processing device, in which case the components shown in Fig. 4 can be used in the case of at least one planetary roller but also for the other rollers (for example, feed rollers 5.3 or press rollers 7 or pre-pressing rollers 7.1). The adjustment device shown in Fig. 4 serves in principle to accurately adjust a roller in relation to a co-ordinated roller in order to optimize in this way the efficiency and the throughput capacity of the particular device (in this case the processing device), in particular as a function of the type of harvested crop.
As already shown and described in Fig. 3, the setting of the distance between the central roller 5.1 and the planetary rollers 5.2 takes place via the rocker arm 51 which can be swiveled around the pivot 52. Here, the distance of the rollers to one another is set similarly. The setting of a minimum distance is carried out via a screw 61 which is screwed into a screw holder 60 and of which the head serves as spacer. In order to ensure in addition to this an individual setting of each planetary roller 5.2, at least one planetary roller 5.2 is at the end mounted in a bearing plate 55 which can be adjusted via a differential screw 56 after fastening screws 57 have been loosened, with which the bearing plate 55 is attached to the Amended page SAME S.p.A. F 94/052 PCT
rocker arm 51. To shift the bearing plate 55, oblong holes or large-dimensioned borings are provided in the area of the fastening screws 57. By the term differential screw, such a screw is to be understood which has two different threads 561 and 562 which have different pitches, in which case the thread 562 away from the head of the differential screw 56 has a smaller diameter than the thread 561. To adjust the distance by shifting the bearing plate 55, the differential screw 56 with the thread 561 is for one thing screwed into a stop 563 with internal thread, in which case the stop 563 is attached to the rocker arm 51. Another stop 564 with internal thread is arranged on the bearing plate 55 so that after loosening the fastening screws 57 by turning the differential screw 56, the distance between the roller 5.1 and the planetary roller 5.2 can be adjusted accurate-ly. After fastening the bearing plate 55 to the rocker arm 51 by means of the fastening screws 57, the distance has a basic setting which then can still be further changed by swiveling the rocker arm 51 around the pivot 52. Further, in Fig. ~ it is also shown that a belt 59 runs around a pressure pulley 58, in which case the belt 59 leads to other planetary rollers 5.2 (or also to other rollers). In addition to the setting of the distance, provisions can also be made, in case the central roller 5 1 and/or the planetary rollers 5.2 are profiled on their surface, to provide a possibility for adjustment and setting respectively through shifting in the direction of the longitudinal axis of tlle rollers.
It should also be pointed out that the drive diagram shown in Fig. 2 and the construction shown in Figs. 3 and ~ are not only Amended page a~
SAME S.p.A. F 94/052 PCT
applicable to the described devices, but are also applicable ~o constructions of other designs which fulfill the same function.
Thus, for example, it is conceivable that the processing device operates according to the tandem roller technique and, alternatively to this, the pressing device has a central press roller around which several planetary press rollers are arranged.
For the description of the mode of operation of the processing device according to the principle shown in Figs. 2 and 3, reference should be also be made here to the German Application P
41 33 759 (date of filing: 02.10.1991), in which the processing of the harvested crop is described.
Amended page
Claims (6)
1. Self-propelled harvester (1), in particular for green fodder, which has:
- a cutting device (2) to cut the crop, - a conveying device (4) to transport the harvested crop, - a processing device to process the harvested crop, - a pressing device to press the harvested crop to a mat and - a device to deposit the mat onto the field, characterized in that a device, supporting the flow of harvested crop, is arranged between the conveying device (4) and the processing device (central roller 5.1, planetary rollers 5.2) and/or between the processing device and the pressing device (press rollers 7) in which case the device, supporting the flow of harvested crop has at least two other co-ordinated rollers (5.3 or 7.1) which form a gap, in particular a changeable or adjustable gap, through which the harvested crop passes.
- a cutting device (2) to cut the crop, - a conveying device (4) to transport the harvested crop, - a processing device to process the harvested crop, - a pressing device to press the harvested crop to a mat and - a device to deposit the mat onto the field, characterized in that a device, supporting the flow of harvested crop, is arranged between the conveying device (4) and the processing device (central roller 5.1, planetary rollers 5.2) and/or between the processing device and the pressing device (press rollers 7) in which case the device, supporting the flow of harvested crop has at least two other co-ordinated rollers (5.3 or 7.1) which form a gap, in particular a changeable or adjustable gap, through which the harvested crop passes.
2. Self-propelled harvester according to claim 1, characterized in that two rollers, co-ordinated with one another, are designed as feed rollers (5.3) and are arranged in the area between the discharge area of the conveying device (4) and the entry area of the processing device.
3. Self-propelled harvester according to claim 1, characterized in that two rollers co-ordinated with one another are designed as pre-pressing rollers (7.1) and are arranged in the area before the entry area of the pressing device.
4. Self-propelled harvester according to one of the previous claims, characterized in that the drive of the device supporting the flow of harvested crop, in particular at least one roller, takes place synchronous to the drive of the device arranged to the front and to the back.
5. Self-propelled harvester according to one of the previous claims, characterized in that the gap can be set, manually or automatically, to a predetermined value, in particular as a function of the type of harvested crop, or that the gap can be changed (adjusted) automatically, in particular as a function of the volume of the harvested crop to be passed through the gap, in particular as a function of the type of harvested crop.
6. Self-propelled harvester according to one of the previous claims, characterized in that the gap can be set to a predetermined basic distance by means of differential screws (56).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4432662.9 | 1994-09-14 | ||
| DE19944432662 DE4432662A1 (en) | 1994-09-14 | 1994-09-14 | Self-propelled harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2200066A1 true CA2200066A1 (en) | 1996-03-21 |
Family
ID=6528154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2200066 Abandoned CA2200066A1 (en) | 1994-09-14 | 1995-04-15 | Self-propelled harvester |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0781087A1 (en) |
| CA (1) | CA2200066A1 (en) |
| DE (1) | DE4432662A1 (en) |
| WO (1) | WO1996008134A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19632868C2 (en) * | 1996-08-14 | 1998-12-10 | Poettinger Ohg Alois | Processing device with electronic control device for an agricultural processing machine |
| CN1074778C (en) * | 1997-07-17 | 2001-11-14 | 田长澄 | Degradeable plastic and plant composite material and its preparation |
| CN1081203C (en) * | 1999-02-11 | 2002-03-20 | 天津丹海股份有限公司 | Preparation of mother material for biodegradable plastics |
| CN1074435C (en) * | 1999-06-22 | 2001-11-07 | 沈阳南阳经贸集团有限公司 | Polynary degradable resin composition and its preparation process |
| US6431981B1 (en) * | 1999-06-30 | 2002-08-13 | Wisconsin Alumni Research Foundation | Yield monitor for forage crops |
| CN1114653C (en) * | 2000-01-12 | 2003-07-16 | 李小鲁 | Biologically degradable resin composition and its preparation and application |
| DE102006045789A1 (en) * | 2006-09-26 | 2008-06-26 | Claas Selbstfahrende Erntemaschinen Gmbh | Drive device for combine harvester |
| DE102009038360A1 (en) * | 2009-08-22 | 2011-02-24 | Claas Selbstfahrende Erntemaschinen Gmbh | Apparatus for dewatering biomass and harvesting vehicle using the same |
| CN101822958B (en) * | 2010-04-29 | 2013-12-18 | 陈世和 | Small-size self-propelled stirrer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1962777A1 (en) * | 1969-12-15 | 1971-06-24 | Nordenskjoeld Reinhard Von Dip | Process for preparing harvestable leaves or stalks for ensiling or drying and facilities for carrying out the process |
| FR2080437A5 (en) * | 1970-02-27 | 1971-11-12 | Fortschritt Veb K | |
| CA1102143A (en) * | 1978-04-28 | 1981-06-02 | Gary W. Krutz | Device for treating agricultural products to enhance drying |
| DE3940673A1 (en) * | 1989-07-17 | 1991-06-13 | Khd Agrartechnik | SELF-DRIVING HARVEST |
| DE4122511A1 (en) * | 1990-10-24 | 1993-01-21 | Krone Bernhard Gmbh Maschf | Combined cutter and preparation machine for stalk crops - has common axle about which preparation unit, tined rotor and cover rotate and are pivotable about support wheel axle dependent on ground unevenness |
| DE4231923A1 (en) * | 1992-09-24 | 1994-03-31 | Kloeckner Humboldt Deutz Ag | Harvester |
-
1994
- 1994-09-14 DE DE19944432662 patent/DE4432662A1/en not_active Withdrawn
-
1995
- 1995-04-15 WO PCT/EP1995/001427 patent/WO1996008134A1/en not_active Application Discontinuation
- 1995-04-15 CA CA 2200066 patent/CA2200066A1/en not_active Abandoned
- 1995-04-15 EP EP95916663A patent/EP0781087A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE4432662A1 (en) | 1996-03-21 |
| EP0781087A1 (en) | 1997-07-02 |
| WO1996008134A1 (en) | 1996-03-21 |
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