CA3139206A1 - Chopper attachment with a conveying channel for conveying a crop and method for conveying the crop - Google Patents
Chopper attachment with a conveying channel for conveying a crop and method for conveying the crop Download PDFInfo
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- CA3139206A1 CA3139206A1 CA3139206A CA3139206A CA3139206A1 CA 3139206 A1 CA3139206 A1 CA 3139206A1 CA 3139206 A CA3139206 A CA 3139206A CA 3139206 A CA3139206 A CA 3139206A CA 3139206 A1 CA3139206 A1 CA 3139206A1
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- Prior art keywords
- attachment
- chopper
- channel
- conveying
- crop
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- 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
- A01D43/08—Mowers combined with apparatus performing additional operations while mowing with means for cutting up the mown crop, e.g. forage harvesters
- A01D43/088—Mounting means
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/01—Cutting apparatus specially adapted for cutting hay, straw or the like specially adapted for being mounted on or drawn by a tractor, e.g. field choppers
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
- A01B59/06—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Agricultural Machines (AREA)
- Harvesting Machines For Specific Crops (AREA)
- Soil Working Implements (AREA)
Abstract
The present invention relates to a chopper attachment, which is intended for attachment to a tractor, in particular to a front or rear lifting gear of a tractor, and which has a channel connection for attaching an attachment device, wherein the channel connection adjoins a conveying channel in a crop flow direction, which conveying channel extends through a pre-press unit and a comminution unit arranged downstream thereof, wherein an ejection nozzle is arranged downstream of the comminution unit, through which ejection nozzle the crop can be ejected, and wherein the pre-press unit directly adjoins the channel connection and comprises at least two pre-press rollers or more, wherein the conveying channel in the pre-press unit has an acute conveying angle as relates to an entry angle of the crop into the channel connection. The present invention further relates to a chopping assembly with a chopper attachment and an attachment device, as well as a work train with a tractor and such a chopper attachment or such a chopping assembly.
Description
I
Chopper attachment with a conveying channel for conveying a crop and method for conveying the crop The present invention relates to a chopper attachment, which is intended for attachment to a tractor, in particular to a front or rear lifting gear of a tractor, and which has a channel connection for attaching an attachment device, a conveying channel adjoining the channel connection in a crop flow direction, which conveying channel extends through a pre-press unit and a comminution unit arranged downstream thereof, with an ejection nozzle being arranged downstream of the comminution unit, through which ejection nozzle the crop can be ejected. The present invention further relates to a chopping assembly with a chopper attachment and an attachment device, as well as a work train with a tractor and such a chopper attachment or such a chopping assembly.
Chopper attachments are intended for harvesting and chopping crops used for silage, especially grass, hay, and corn, but also whole plants. They are attached to or mounted on a tractor. Chopper attachments that are used to harvest from one to three rows of corn are known from former times. In this embodiment, the chopper attachments are mostly guided to the side of the tractor.
Later, chopper attachments were built which can be attached to a tractor and which have a channel connection to which attachment devices, which are also suitable for self-propelled forage harvesters, can be attached in a modular manner. This means that attachment devices of different types can be used with the same chopper attachment.
In order to use attachment devices in a modular way, the chopper attachment is often attached to the front or rear lifting gear of the tractor. When the chopper attachment is attached to the rear lifting gear, it is known to use the tractor in reverse mode while harvesting in the field. Compared to attaching the chopper attachment to the front lifting gear and operating the tractor in forward mode while harvesting in the field, the tractor can carry a greater load in reverse mode.
For reverse mode, tractors are known in which the steering wheel and the seat can be rotated in a driver's cab so that the seat is arranged behind the front window and the Date Recue/Date Received 2022-02-04
Chopper attachment with a conveying channel for conveying a crop and method for conveying the crop The present invention relates to a chopper attachment, which is intended for attachment to a tractor, in particular to a front or rear lifting gear of a tractor, and which has a channel connection for attaching an attachment device, a conveying channel adjoining the channel connection in a crop flow direction, which conveying channel extends through a pre-press unit and a comminution unit arranged downstream thereof, with an ejection nozzle being arranged downstream of the comminution unit, through which ejection nozzle the crop can be ejected. The present invention further relates to a chopping assembly with a chopper attachment and an attachment device, as well as a work train with a tractor and such a chopper attachment or such a chopping assembly.
Chopper attachments are intended for harvesting and chopping crops used for silage, especially grass, hay, and corn, but also whole plants. They are attached to or mounted on a tractor. Chopper attachments that are used to harvest from one to three rows of corn are known from former times. In this embodiment, the chopper attachments are mostly guided to the side of the tractor.
Later, chopper attachments were built which can be attached to a tractor and which have a channel connection to which attachment devices, which are also suitable for self-propelled forage harvesters, can be attached in a modular manner. This means that attachment devices of different types can be used with the same chopper attachment.
In order to use attachment devices in a modular way, the chopper attachment is often attached to the front or rear lifting gear of the tractor. When the chopper attachment is attached to the rear lifting gear, it is known to use the tractor in reverse mode while harvesting in the field. Compared to attaching the chopper attachment to the front lifting gear and operating the tractor in forward mode while harvesting in the field, the tractor can carry a greater load in reverse mode.
For reverse mode, tractors are known in which the steering wheel and the seat can be rotated in a driver's cab so that the seat is arranged behind the front window and the Date Recue/Date Received 2022-02-04
2 steering wheel is arranged in front of the rear window. Furthermore, tractors are known in which the entire cab can be rotated through an angle of rotation of 1800.
When the tractor is rotated for reverse mode, the shape and structure of the cab may have to be taken into account.
In former times, the size of the attachable attachment devices was limited by the performance of the tractor. In contrast, the chopper attachments known today are no longer designed for the performance of large tractors.
The object of the present invention is to create a powerful chopper attachment which is suitable for attaching large attachment devices to powerful tractors, in particular with 500 HP and more.
The object is achieved with a chopper attachment having the features of independent claim 1, a chopping assembly having the features of independent claim 13, and a work train having the features of independent claim 14. Advantageous embodiments can be found in the dependent claims.
A chopper attachment is obtained for this. The chopper attachment is intended to be attached to a tractor. It can preferably be attached to a front or rear lifting gear of the tractor. The tractor preferably has 500 HP or more. The chopper attachment has a channel connection to which an attachment device can be attached. Such an attachment device can be used for harvesting corn, for cutting and/or picking up grass or hay, or for harvesting whole plants. In particular, it can also be attached to self-propelled forage harvesters.
A conveying channel adjoins the channel connection of the chopper attachment in a crop flow direction, which conveying channel extends through a pre-press unit and a comminution unit arranged downstream thereof. Furthermore, an ejection nozzle is arranged downstream of the comminution unit, through which ejection nozzle the crop can be ejected.
A conditioner through which the conveying channel passes can also be arranged in a corn-harvesting assembly, between the comminution unit and the ejection nozzle. The conditioner is intended to break open the corn kernels so that a shell of the corn kernels Date Recue/Date Received 2022-02-04
When the tractor is rotated for reverse mode, the shape and structure of the cab may have to be taken into account.
In former times, the size of the attachable attachment devices was limited by the performance of the tractor. In contrast, the chopper attachments known today are no longer designed for the performance of large tractors.
The object of the present invention is to create a powerful chopper attachment which is suitable for attaching large attachment devices to powerful tractors, in particular with 500 HP and more.
The object is achieved with a chopper attachment having the features of independent claim 1, a chopping assembly having the features of independent claim 13, and a work train having the features of independent claim 14. Advantageous embodiments can be found in the dependent claims.
A chopper attachment is obtained for this. The chopper attachment is intended to be attached to a tractor. It can preferably be attached to a front or rear lifting gear of the tractor. The tractor preferably has 500 HP or more. The chopper attachment has a channel connection to which an attachment device can be attached. Such an attachment device can be used for harvesting corn, for cutting and/or picking up grass or hay, or for harvesting whole plants. In particular, it can also be attached to self-propelled forage harvesters.
A conveying channel adjoins the channel connection of the chopper attachment in a crop flow direction, which conveying channel extends through a pre-press unit and a comminution unit arranged downstream thereof. Furthermore, an ejection nozzle is arranged downstream of the comminution unit, through which ejection nozzle the crop can be ejected.
A conditioner through which the conveying channel passes can also be arranged in a corn-harvesting assembly, between the comminution unit and the ejection nozzle. The conditioner is intended to break open the corn kernels so that a shell of the corn kernels Date Recue/Date Received 2022-02-04
3 is broken and starch inside the corn kernels is accessible from the outside.
The conditioner is not intended to be used in a hay-harvesting assembly where grass or hay is harvested.
An ejection pipe is preferably attached to the ejection nozzle. The ejection pipe serves as an extension of the ejection nozzle and is intended for ejecting the crop onto a loading wagon. It is preferably attached to the ejection nozzle so as to be rotatable and/or height-adjustable for this purpose.
The chopper attachment is characterized in that the pre-press unit directly adjoins the channel connection and has at least two pre-press rollers or more, the conveying channel in the pre-press unit having an acute conveying angle as relates to an entry angle of the crop into the channel connection. The entry angle is an angle measured with respect to a working direction, which is an essentially horizontal direction, in particular in flat terrain.
The resulting comparatively steep incline in the conveying channel in the pre-press unit means that the chopper attachment is short and compact in the working direction.
The short and compact design of the chopper attachment means that the weight acting on the rear axle of the tractor is low enough so as not to relieve the front axle too much.
Furthermore, a lever arm, with which the chopper attachment or a chopping assembly comprising the chopper attachment and an attachment device attached thereto thereby acts on the front or rear lifting gear of the tractor, and a distance between the center of gravity of the chopper attachment and the tractor are as small as possible.
In comparison to a chopper attachment having a center of gravity distance from the tractor which is greater, a larger attachment device can thus be attached to the chopper attachment according to the invention. Even if the chopper attachment is attached to the rear lifting gear of the tractor and a large attachment device is used, for example a 6-, 8-or even 10-row attachment device, there is no need for a counterweight on the front of the tractor.
It is especially preferred that the conveying angle is in a range of 15 -30 , very especially preferably in a range of 18 -25 .
In a preferred advantageous embodiment, an upper channel path of the conveying Date Recue/Date Received 2022-02-04
The conditioner is not intended to be used in a hay-harvesting assembly where grass or hay is harvested.
An ejection pipe is preferably attached to the ejection nozzle. The ejection pipe serves as an extension of the ejection nozzle and is intended for ejecting the crop onto a loading wagon. It is preferably attached to the ejection nozzle so as to be rotatable and/or height-adjustable for this purpose.
The chopper attachment is characterized in that the pre-press unit directly adjoins the channel connection and has at least two pre-press rollers or more, the conveying channel in the pre-press unit having an acute conveying angle as relates to an entry angle of the crop into the channel connection. The entry angle is an angle measured with respect to a working direction, which is an essentially horizontal direction, in particular in flat terrain.
The resulting comparatively steep incline in the conveying channel in the pre-press unit means that the chopper attachment is short and compact in the working direction.
The short and compact design of the chopper attachment means that the weight acting on the rear axle of the tractor is low enough so as not to relieve the front axle too much.
Furthermore, a lever arm, with which the chopper attachment or a chopping assembly comprising the chopper attachment and an attachment device attached thereto thereby acts on the front or rear lifting gear of the tractor, and a distance between the center of gravity of the chopper attachment and the tractor are as small as possible.
In comparison to a chopper attachment having a center of gravity distance from the tractor which is greater, a larger attachment device can thus be attached to the chopper attachment according to the invention. Even if the chopper attachment is attached to the rear lifting gear of the tractor and a large attachment device is used, for example a 6-, 8-or even 10-row attachment device, there is no need for a counterweight on the front of the tractor.
It is especially preferred that the conveying angle is in a range of 15 -30 , very especially preferably in a range of 18 -25 .
In a preferred advantageous embodiment, an upper channel path of the conveying Date Recue/Date Received 2022-02-04
4 channel in the pre-press unit is shorter than a lower channel path. For this purpose, the pre-press unit preferably has two upper and three lower pre-press rollers, between which the conveying channel extends. In this case, the two pre-press rollers that are respectively front in the direction of crop flow can be larger than the pre-press rollers arranged downstream thereof in the direction of crop flow.
In a preferred embodiment, which also achieves the object, the ejection nozzle is inclined in the working direction relative to a direction of extension which extends transversely to a working direction of the chopper attachment, in particular in a harvesting operation. The direction of extension in flat terrain is essentially the vertical direction.
Due to the inclination of the ejection nozzle in the working direction relative to the direction of extension, the chopper attachment can be attached closer to the tractor carrying the chopper attachment, in spite of the cab attachments of the tractor carrying the attachment being arranged, in particular, approximately at the height of the rear lifting gear. The chopper attachment can, therefore, be attached very close to the tractor, even when a tractor is used that has a rotated cab and cab superstructures above the rear lifting gear.
By attaching the chopper attachment as close as possible to the tractor, a center of gravity of the chopper attachment is shifted in the direction of the tractor. As a result, the lever arm, with which the chopper attachment or a chopping assembly acts on the front or rear lifting gear of the tractor, is as small as possible. The weight acting on the front or rear lifting gear due to the chopper attachment or the chopping assembly is, therefore, less than that of an otherwise structurally identical chopper attachment, in which the ejection nozzle has no inclination in the working direction or is even inclined opposite the working direction.
In comparison to a chopper attachment having a center of gravity distance from the tractor which is greater, a larger attachment device can thus be attached to the chopper attachment according to the invention. It is preferred that the ejection nozzle is supported on a housing of the chopper attachment, in particular on a housing of the pre-press unit or of the comminution unit. An angle of inclination by which the ejection nozzle is inclined relative to the direction of extension in the working direction is preferably in a range of approximately 4 -15 . The angle of inclination is especially preferably in a range of approximately 70-10 .
Date Recue/Date Received 2022-02-04
In a preferred embodiment, which also achieves the object, the ejection nozzle is inclined in the working direction relative to a direction of extension which extends transversely to a working direction of the chopper attachment, in particular in a harvesting operation. The direction of extension in flat terrain is essentially the vertical direction.
Due to the inclination of the ejection nozzle in the working direction relative to the direction of extension, the chopper attachment can be attached closer to the tractor carrying the chopper attachment, in spite of the cab attachments of the tractor carrying the attachment being arranged, in particular, approximately at the height of the rear lifting gear. The chopper attachment can, therefore, be attached very close to the tractor, even when a tractor is used that has a rotated cab and cab superstructures above the rear lifting gear.
By attaching the chopper attachment as close as possible to the tractor, a center of gravity of the chopper attachment is shifted in the direction of the tractor. As a result, the lever arm, with which the chopper attachment or a chopping assembly acts on the front or rear lifting gear of the tractor, is as small as possible. The weight acting on the front or rear lifting gear due to the chopper attachment or the chopping assembly is, therefore, less than that of an otherwise structurally identical chopper attachment, in which the ejection nozzle has no inclination in the working direction or is even inclined opposite the working direction.
In comparison to a chopper attachment having a center of gravity distance from the tractor which is greater, a larger attachment device can thus be attached to the chopper attachment according to the invention. It is preferred that the ejection nozzle is supported on a housing of the chopper attachment, in particular on a housing of the pre-press unit or of the comminution unit. An angle of inclination by which the ejection nozzle is inclined relative to the direction of extension in the working direction is preferably in a range of approximately 4 -15 . The angle of inclination is especially preferably in a range of approximately 70-10 .
Date Recue/Date Received 2022-02-04
5 In a preferred embodiment, the chopper attachment has a power take-off shaft connection for connection to a power take-off shaft of the tractor to drive its units, in particular the pre-press unit and/or the comminution unit. The use of the tractor's power take-off shaft to drive the units enables a high harvesting capacity of the chopper attachment and thus enables the design of the chopper attachment in a dimension corresponding to the powerful tractor. However, the connection of the chopper attachment to the power take-off shaft requires a minimum distance between the chopper attachment and the tractor.
The inclination of the ejection nozzle enables the attachment of the chopper attachment to the tractor with a minimized distance when the tractor's power take-off shaft is used to drive the chopper attachment.
In order to achieve a load which is as symmetrical as possible on the chopper attachment, through which load the center of gravity of the chopper attachment is in a plane which extends approximately into the middle of said chopper attachment, which plane is spanned by the direction of extension and the working direction, it is preferred that the ejection nozzle is arranged in the vertical direction above the channel connection and flush with the channel connection in the working direction.
The comminution unit preferably has a shear bar and a drum chopper, between which the crop can be chopped. Furthermore, the conveying channel preferably extends between the drum chopper and a conveyor base, which is at least partially arranged concentrically to the drum chopper.
It is preferred that a wrap angle of the conveying channel around the drum chopper is independent of an attachment height and/or an angle of attachment of the chopper attachment to the tractor relative to the ground. For this purpose, the comminution unit and the pre-press unit are preferably rigidly connected to one another. A
chopping angle at which the crop is fed from the pre-press unit to the comminution unit and is chopped between the shear bar and the drum chopper is therefore always the same. It is preferably approximately 80 -100 , especially preferably approximately 90 .
Additionally, or alternatively, the wrap angle is preferably greater than 115 , especially preferably approximately 125 -165 , very especially preferably approximately 145 . The large wrap angle causes increased friction of the crop along the conveyor base. However, Date Recue/Date Received 2022-02-04
The inclination of the ejection nozzle enables the attachment of the chopper attachment to the tractor with a minimized distance when the tractor's power take-off shaft is used to drive the chopper attachment.
In order to achieve a load which is as symmetrical as possible on the chopper attachment, through which load the center of gravity of the chopper attachment is in a plane which extends approximately into the middle of said chopper attachment, which plane is spanned by the direction of extension and the working direction, it is preferred that the ejection nozzle is arranged in the vertical direction above the channel connection and flush with the channel connection in the working direction.
The comminution unit preferably has a shear bar and a drum chopper, between which the crop can be chopped. Furthermore, the conveying channel preferably extends between the drum chopper and a conveyor base, which is at least partially arranged concentrically to the drum chopper.
It is preferred that a wrap angle of the conveying channel around the drum chopper is independent of an attachment height and/or an angle of attachment of the chopper attachment to the tractor relative to the ground. For this purpose, the comminution unit and the pre-press unit are preferably rigidly connected to one another. A
chopping angle at which the crop is fed from the pre-press unit to the comminution unit and is chopped between the shear bar and the drum chopper is therefore always the same. It is preferably approximately 80 -100 , especially preferably approximately 90 .
Additionally, or alternatively, the wrap angle is preferably greater than 115 , especially preferably approximately 125 -165 , very especially preferably approximately 145 . The large wrap angle causes increased friction of the crop along the conveyor base. However, Date Recue/Date Received 2022-02-04
6 as a result, the crop can be ejected into the ejection nozzle approximately in a straight line, the ejection nozzle being inclined in the working direction as relates to the direction of extension.
For this purpose, the ejection nozzle is preferably arranged in a stationary manner on the housing of the chopper attachment, and therefore does not change its position relative to the drum chopper.
The steep conveying channel in the pre-press unit, the large wrap angle, and the inclination of the ejection nozzle require a higher drive power compared to a conveying channel that is optimized with regard to crop flow. In contrast, these measures enable a compact, short design and a very short distance between the chopper attachment attached to the tractor and the latter. This optimizes the distance between the chopper attachment and the tractor's center of gravity. This means that the chopper attachment can also be operated with large attachment devices on the tractor.
The object is also achieved with a chopping assembly which has a chopper attachment with a channel connection, in particular such a chopper attachment, as well as an attachment device which is attached to the channel connection of the chopper attachment. The attachment device preferably has an attachment conveying channel through which the crop can be conveyed to the channel connection of the chopper attachment. It is further preferred that the chopper attachment has a conveying channel that connects to the channel connection.
In a preferred embodiment, the attachment conveying channel of the attachment device extends into an area adjoining the channel connection at an acute entry angle as relates to the working direction, in particular in flat terrain as relates to the ground and/or the horizontal, and the conveying channel of the chopper attachment extends into an area adjoining the channel connection at an acute conveying angle as relates to the attachment conveying channel of the attachment device.
It is especially preferred that the angle of attachment is in the range of 150-300. The angle of attachment is very especially preferably approximately 18 -25 .
Due to the relatively steep rise of the conveying channel in the pre-press unit, the chopper Date Recue/Date Received 2022-02-04
For this purpose, the ejection nozzle is preferably arranged in a stationary manner on the housing of the chopper attachment, and therefore does not change its position relative to the drum chopper.
The steep conveying channel in the pre-press unit, the large wrap angle, and the inclination of the ejection nozzle require a higher drive power compared to a conveying channel that is optimized with regard to crop flow. In contrast, these measures enable a compact, short design and a very short distance between the chopper attachment attached to the tractor and the latter. This optimizes the distance between the chopper attachment and the tractor's center of gravity. This means that the chopper attachment can also be operated with large attachment devices on the tractor.
The object is also achieved with a chopping assembly which has a chopper attachment with a channel connection, in particular such a chopper attachment, as well as an attachment device which is attached to the channel connection of the chopper attachment. The attachment device preferably has an attachment conveying channel through which the crop can be conveyed to the channel connection of the chopper attachment. It is further preferred that the chopper attachment has a conveying channel that connects to the channel connection.
In a preferred embodiment, the attachment conveying channel of the attachment device extends into an area adjoining the channel connection at an acute entry angle as relates to the working direction, in particular in flat terrain as relates to the ground and/or the horizontal, and the conveying channel of the chopper attachment extends into an area adjoining the channel connection at an acute conveying angle as relates to the attachment conveying channel of the attachment device.
It is especially preferred that the angle of attachment is in the range of 150-300. The angle of attachment is very especially preferably approximately 18 -25 .
Due to the relatively steep rise of the conveying channel in the pre-press unit, the chopper Date Recue/Date Received 2022-02-04
7 attachment can be built compactly and has a short length in the working direction. A lever arm, with which the chopping assembly acts on the front or rear lifting gear of the tractor to which it is attached, is therefore smaller than a conveying channel with a flatter rise in the pre-press unit. This means that a large attachment device can be attached to the chopping assembly.
The object is also achieved with a work train comprising such a chopper attachment or such a chopping assembly. The work train has a tractor, in particular with 500 HP and more, to which the chopper attachment is attached, in particular at the front or rear, in particular on the front lifting gear or on the rear lifting gear. A modular attachment device can be attached or is attached to the chopper attachment of the work train and can be used to harvest crops. The attachment device can be designed in six rows or greater in this case.
In the case of the chopper attachment, a less-than-optimal course of the conveying channel in relation to the deflection of the crop, in particular in the direction of extension and/or working direction, as well as in relation to the wrap angle is intentionally accepted.
In return, this makes it possible to optimize the distance between the center of gravity of the chopper attachment and the tractor, in particular from the axle that supports it. This reduces the weight acting on the lifting gear so that a large attachment device can be attached to the tractor. The chopper attachment is designed for large tractors.
The invention is described below with reference to figures. The figures are only exemplary and do not restrict the general inventive concept. The following is shown in the figures:
Fig. 1 (a) a side view of a work train in field operation, with a tractor in reverse mode, to which a chopping assembly is attached, which comprises a chopper attachment in a corn-harvesting assembly and an attachment device modularly attached thereto, and (b) the work train from (a) in a view showing a front of the chopper attachment and of the attachment device;
Fig. 2 (a) the chopping assembly with the chopper attachment and the attachment device from Fig. 1 in a sectional view, and (b) a chopping assembly in a side view, comprising the chopper attachment from Fig. 1 in a hay-harvesting assembly and an attachment device of a different type; and Date Recue/Date Received 2022-02-04
The object is also achieved with a work train comprising such a chopper attachment or such a chopping assembly. The work train has a tractor, in particular with 500 HP and more, to which the chopper attachment is attached, in particular at the front or rear, in particular on the front lifting gear or on the rear lifting gear. A modular attachment device can be attached or is attached to the chopper attachment of the work train and can be used to harvest crops. The attachment device can be designed in six rows or greater in this case.
In the case of the chopper attachment, a less-than-optimal course of the conveying channel in relation to the deflection of the crop, in particular in the direction of extension and/or working direction, as well as in relation to the wrap angle is intentionally accepted.
In return, this makes it possible to optimize the distance between the center of gravity of the chopper attachment and the tractor, in particular from the axle that supports it. This reduces the weight acting on the lifting gear so that a large attachment device can be attached to the tractor. The chopper attachment is designed for large tractors.
The invention is described below with reference to figures. The figures are only exemplary and do not restrict the general inventive concept. The following is shown in the figures:
Fig. 1 (a) a side view of a work train in field operation, with a tractor in reverse mode, to which a chopping assembly is attached, which comprises a chopper attachment in a corn-harvesting assembly and an attachment device modularly attached thereto, and (b) the work train from (a) in a view showing a front of the chopper attachment and of the attachment device;
Fig. 2 (a) the chopping assembly with the chopper attachment and the attachment device from Fig. 1 in a sectional view, and (b) a chopping assembly in a side view, comprising the chopper attachment from Fig. 1 in a hay-harvesting assembly and an attachment device of a different type; and Date Recue/Date Received 2022-02-04
8 Fig. 3 the work train from Fig. 1 in a side view in road operation.
Fig. 1 shows a work train 100 with a tractor 3, to which a chopping assembly is attached, which chopping assembly includes a chopper attachment 1, as well as an attachment device 2 which is modularly attached to the chopper attachment 1. In this case, the chopper attachment 1 is attached to the rear lifting gear 11 of the tractor 3.
The deflection of the chopper attachment 1 as relates to the rear lifting gear 11 of the tractor 3 is shown by means of lower links 13 and an upper link 12. In addition, a power take-off shaft connection 16 for connecting the chopper attachment 1 to a power take-off shaft (not shown) of the tractor 3 is also shown schematically in the figure. The chopper attachment 1 can be driven via the power take-off shaft of the tractor 3.
The illustration shows the work train 100 in field operation F, in which the chopping assembly is used for harvesting and chopping crop 5, in particular corn. The tractor 3 here is operated in reverse mode R. The reverse mode R is shown here schematically by the direction of rotation 30 of the wheels 31 of the tractor 3.
An attachment device 2 for harvesting corn is shown here as an example of an attachment device 2. However, the chopper attachment 2 can also be operated with attachment devices 2 of another type, for example with attachment devices 2 for harvesting whole plants or for harvesting grass or hay, in particular with a mower for cutting grass or with a pick-up device for picking up grass or hay.
The attachment device 2 can be folded up G for transport purposes (see Fig.
3). It is not folded up U in field operation F (unfolded).
The crop 5 is chopped and/or picked up with the attachment device 2 and fed to the chopper attachment 1 in a crop flow direction 50 through an attachment conveying channel 23. It is attached to a channel connection 21 of the chopper attachment 1. The channel connection 21 has a channel opening 22 through which the crop 5 is conveyed into a conveying channel 14 of the chopper attachment I.
The chopper attachment 1 is shown in a corn-harvesting assembly M in Fig I. In the corn-harvesting assembly M, a conditioner 8 is accommodated in the chopper attachment 1, which conditioner is provided for breaking up the corn kernels so that the starch inside Date Recue/Date Received 2022-02-04
Fig. 1 shows a work train 100 with a tractor 3, to which a chopping assembly is attached, which chopping assembly includes a chopper attachment 1, as well as an attachment device 2 which is modularly attached to the chopper attachment 1. In this case, the chopper attachment 1 is attached to the rear lifting gear 11 of the tractor 3.
The deflection of the chopper attachment 1 as relates to the rear lifting gear 11 of the tractor 3 is shown by means of lower links 13 and an upper link 12. In addition, a power take-off shaft connection 16 for connecting the chopper attachment 1 to a power take-off shaft (not shown) of the tractor 3 is also shown schematically in the figure. The chopper attachment 1 can be driven via the power take-off shaft of the tractor 3.
The illustration shows the work train 100 in field operation F, in which the chopping assembly is used for harvesting and chopping crop 5, in particular corn. The tractor 3 here is operated in reverse mode R. The reverse mode R is shown here schematically by the direction of rotation 30 of the wheels 31 of the tractor 3.
An attachment device 2 for harvesting corn is shown here as an example of an attachment device 2. However, the chopper attachment 2 can also be operated with attachment devices 2 of another type, for example with attachment devices 2 for harvesting whole plants or for harvesting grass or hay, in particular with a mower for cutting grass or with a pick-up device for picking up grass or hay.
The attachment device 2 can be folded up G for transport purposes (see Fig.
3). It is not folded up U in field operation F (unfolded).
The crop 5 is chopped and/or picked up with the attachment device 2 and fed to the chopper attachment 1 in a crop flow direction 50 through an attachment conveying channel 23. It is attached to a channel connection 21 of the chopper attachment 1. The channel connection 21 has a channel opening 22 through which the crop 5 is conveyed into a conveying channel 14 of the chopper attachment I.
The chopper attachment 1 is shown in a corn-harvesting assembly M in Fig I. In the corn-harvesting assembly M, a conditioner 8 is accommodated in the chopper attachment 1, which conditioner is provided for breaking up the corn kernels so that the starch inside Date Recue/Date Received 2022-02-04
9 the corn kernels is accessible from the outside and the corn can be used by livestock. In addition, the conditioner 8 can be used when harvesting whole plants for comminuting cereal grains. In a hay-harvesting assembly H, which is shown in Fig. 2 (b), the conditioner 8 is not provided in the chopper attachment 1 in order to prevent the grass or hay from being frayed during harvest.
The chopper attachment 1 has a pre-press unit 6 that directly adjoins the channel connection 21. The pre-press unit 6 is arranged at the front in a working direction 41, in which the chopper attachment 1 is moved over a field (not designated) in field operation F. It is arranged immediately downstream of the channel connection 21. The crop 5 therefore flows from the attachment device 2, through the channel opening 22, directly into the pre-press unit 6.
The pre-press unit 6 here has five conveyor rollers 61-65, which delimit the conveying channel 14. Two of the pre-press rollers 61, 62 are provided as upper and three as lower pre-press rollers 63, 64, 65.
A comminution unit 7 is arranged downstream of the pre-press unit 6 in the direction of crop flow 50. The comminution unit 7 comprises a shear bar 72 and a drum chopper 71, between which the crop 5 is chopped. The shear bar 72 is arranged behind the last lower pre-press roller 65 and is positioned in such a way that the crop 5 flows into the drum chopper 71 approximately at right angles. As a result, the smoothest possible cut can be made without the crop 5 fraying.
In principle, disk wheels (not shown) can also be used in the comminution unit 7 for chopping the crop. However, a considerably better, consistently good chop quality can be achieved with the drum chopper 71. The higher weight of the drum chopper 71 compared to disk wheels, which is important with regard to the object at hand, is therefore deliberately accepted in return for the better chopping quality.
The drum chopper 71 is rotated about a chopping axis (not designated) in a direction of rotation (not designated) of the chopping when the chopper attachment 1 is in operation.
Chopping blades (not shown), which are provided for chopping the crop 5, are arranged on the drum chopper 71, evenly distributed in the direction of rotation of the chopping.
When the chopper attachment 1 is in operation, the chopping blades rotate with the drum Date Recue/Date Received 2022-02-04
The chopper attachment 1 has a pre-press unit 6 that directly adjoins the channel connection 21. The pre-press unit 6 is arranged at the front in a working direction 41, in which the chopper attachment 1 is moved over a field (not designated) in field operation F. It is arranged immediately downstream of the channel connection 21. The crop 5 therefore flows from the attachment device 2, through the channel opening 22, directly into the pre-press unit 6.
The pre-press unit 6 here has five conveyor rollers 61-65, which delimit the conveying channel 14. Two of the pre-press rollers 61, 62 are provided as upper and three as lower pre-press rollers 63, 64, 65.
A comminution unit 7 is arranged downstream of the pre-press unit 6 in the direction of crop flow 50. The comminution unit 7 comprises a shear bar 72 and a drum chopper 71, between which the crop 5 is chopped. The shear bar 72 is arranged behind the last lower pre-press roller 65 and is positioned in such a way that the crop 5 flows into the drum chopper 71 approximately at right angles. As a result, the smoothest possible cut can be made without the crop 5 fraying.
In principle, disk wheels (not shown) can also be used in the comminution unit 7 for chopping the crop. However, a considerably better, consistently good chop quality can be achieved with the drum chopper 71. The higher weight of the drum chopper 71 compared to disk wheels, which is important with regard to the object at hand, is therefore deliberately accepted in return for the better chopping quality.
The drum chopper 71 is rotated about a chopping axis (not designated) in a direction of rotation (not designated) of the chopping when the chopper attachment 1 is in operation.
Chopping blades (not shown), which are provided for chopping the crop 5, are arranged on the drum chopper 71, evenly distributed in the direction of rotation of the chopping.
When the chopper attachment 1 is in operation, the chopping blades rotate with the drum Date Recue/Date Received 2022-02-04
10 chopper 71 in the direction of rotation of the chopping. The crop 5 comes into engagement with the chopping blades and is cut between one of the chopping blades and the shear bar 72.
The conveying channel 14 is delimited in the comminution unit 7 by the drum chopper 71 and a conveyor base 73 extending at least partially concentrically as relates to the drum chopper 71.
The conditioner 8 is arranged downstream of the comminution unit 7 in the direction of crop flow 50. The conditioner has two cracker rollers 81, 82. The cracker rollers 81, 82 each rotate about a cracker axis (not designated) in a direction of rotation (not designated) of cracking when the chopper attachment 1 is in operation, the directions of rotations of the two cracker rollers 81, 82 being opposite to one another. The corn is conveyed between the cracker rollers 81, 82 during operation of the chopper attachment 1. The shell of the corn kernels or cereal kernels is broken open so that the starch inside the corn kernels is accessible. Therefore, the conveying channel 14 extends between the cracker rollers 81, 82 in the conditioner 8.
The chopped-up crop 5 is then ejected by an ejection unit 9. The ejection unit 9 has an ejection nozzle 91 which is attached to the housing 15 of the chopper attachment 1 in a stationary manner. An ejection pipe 92 is attached to the ejection nozzle 91, which ejection pipe is used as an extension and with which the crop 5 can be ejected onto a loading wagon (not shown). Fig. 1 (a) shows only a portion of the ejection pipe 92. The complete ejection pipe 92 is shown in Figure 1 (b). Thus, the conveying channel 14 is delimited by the ejection nozzle 91 and the ejection pipe 92 in the ejection unit 9.
An adjustable ejection flap (not designated) is provided at an open end (not designated) of the ejection pipe 92, with which ejection flap a point of impact of the crop 5 in the loading wagon can be adjusted.
Fig. 1 (b) shows the work train 100 from Fig. 1 (a) in a view showing a front of the chopper attachment 1 and the attachment device 2.
The work train 100 is in field operation F. Therefore, the chopper attachment 1 is attached to the rear lifting gear 11 of the tractor 3 here as well. Thus, the tractor 3 is in reverse Date Recue/Date Received 2022-02-04
The conveying channel 14 is delimited in the comminution unit 7 by the drum chopper 71 and a conveyor base 73 extending at least partially concentrically as relates to the drum chopper 71.
The conditioner 8 is arranged downstream of the comminution unit 7 in the direction of crop flow 50. The conditioner has two cracker rollers 81, 82. The cracker rollers 81, 82 each rotate about a cracker axis (not designated) in a direction of rotation (not designated) of cracking when the chopper attachment 1 is in operation, the directions of rotations of the two cracker rollers 81, 82 being opposite to one another. The corn is conveyed between the cracker rollers 81, 82 during operation of the chopper attachment 1. The shell of the corn kernels or cereal kernels is broken open so that the starch inside the corn kernels is accessible. Therefore, the conveying channel 14 extends between the cracker rollers 81, 82 in the conditioner 8.
The chopped-up crop 5 is then ejected by an ejection unit 9. The ejection unit 9 has an ejection nozzle 91 which is attached to the housing 15 of the chopper attachment 1 in a stationary manner. An ejection pipe 92 is attached to the ejection nozzle 91, which ejection pipe is used as an extension and with which the crop 5 can be ejected onto a loading wagon (not shown). Fig. 1 (a) shows only a portion of the ejection pipe 92. The complete ejection pipe 92 is shown in Figure 1 (b). Thus, the conveying channel 14 is delimited by the ejection nozzle 91 and the ejection pipe 92 in the ejection unit 9.
An adjustable ejection flap (not designated) is provided at an open end (not designated) of the ejection pipe 92, with which ejection flap a point of impact of the crop 5 in the loading wagon can be adjusted.
Fig. 1 (b) shows the work train 100 from Fig. 1 (a) in a view showing a front of the chopper attachment 1 and the attachment device 2.
The work train 100 is in field operation F. Therefore, the chopper attachment 1 is attached to the rear lifting gear 11 of the tractor 3 here as well. Thus, the tractor 3 is in reverse Date Recue/Date Received 2022-02-04
11 mode R, similar to Fig. 1 (a). In addition, the attachment device 2 is therefore not folded up U.
The attachment conveying channel 23 and the channel opening 22 of the channel connection 21 are visible. The crop 5 is fed through the attachment conveying channel 23 to the channel opening 22 in the direction of crop flow 50 and picked up there by the chopper attachment 1.
In addition, Fig. 1 (b) shows that the chopper attachment 1 is arranged centrally on the tractor 3. As a result, a center of gravity (not shown) of the chopper attachment 1 is located in a plane E which extends approximately in the middle and is spanned by an extension direction 42 which extends transversely to the working direction 41, and the working direction 41 is spanned. The plane E passes through the work train 100 approximately in the middle in a transverse direction 43 which is transverse to the direction of extension 42 and to the working direction 41.
The crop 5 is thereby drawn inward in the middle of the chopper attachment 1.
Furthermore, the ejection nozzle 91 of the ejection unit 9 is mounted centrally on the housing 15 of the chopper attachment 1. After entering through the channel opening 22 into the chopper attachment 1, the crop 5 is no longer significantly deflected in or opposite the transverse direction 43 until it is introduced into the ejection pipe 92 through the ejection nozzle 91. Only then is it diverted in the direction of the loading wagon, which can move to the side or behind the tractor 3. The chopper attachment 1, in particular its units 6, 7, is thus utilized to its full extent symmetrically to plane E.
Furthermore, Fig. 1 (b) shows that the ejection nozzle 91 is supported on the housing 15 of the chopper attachment 1 by means of two struts 93 arranged symmetrically to plane E.
Fig. 2 (a) shows the chopping assembly with the chopper attachment 1 and the attachment device 2 from Fig. 1 in a sectional view.
The chopping assembly is raised relative to the ground 4 so that cutting tools (not shown) of the attachment device 2 are located on a cutting plane 24. The cutting plane 24 in this case extends parallel to the working direction 41 and/or to the ground 4. In level terrain, Date Recue/Date Received 2022-02-04
The attachment conveying channel 23 and the channel opening 22 of the channel connection 21 are visible. The crop 5 is fed through the attachment conveying channel 23 to the channel opening 22 in the direction of crop flow 50 and picked up there by the chopper attachment 1.
In addition, Fig. 1 (b) shows that the chopper attachment 1 is arranged centrally on the tractor 3. As a result, a center of gravity (not shown) of the chopper attachment 1 is located in a plane E which extends approximately in the middle and is spanned by an extension direction 42 which extends transversely to the working direction 41, and the working direction 41 is spanned. The plane E passes through the work train 100 approximately in the middle in a transverse direction 43 which is transverse to the direction of extension 42 and to the working direction 41.
The crop 5 is thereby drawn inward in the middle of the chopper attachment 1.
Furthermore, the ejection nozzle 91 of the ejection unit 9 is mounted centrally on the housing 15 of the chopper attachment 1. After entering through the channel opening 22 into the chopper attachment 1, the crop 5 is no longer significantly deflected in or opposite the transverse direction 43 until it is introduced into the ejection pipe 92 through the ejection nozzle 91. Only then is it diverted in the direction of the loading wagon, which can move to the side or behind the tractor 3. The chopper attachment 1, in particular its units 6, 7, is thus utilized to its full extent symmetrically to plane E.
Furthermore, Fig. 1 (b) shows that the ejection nozzle 91 is supported on the housing 15 of the chopper attachment 1 by means of two struts 93 arranged symmetrically to plane E.
Fig. 2 (a) shows the chopping assembly with the chopper attachment 1 and the attachment device 2 from Fig. 1 in a sectional view.
The chopping assembly is raised relative to the ground 4 so that cutting tools (not shown) of the attachment device 2 are located on a cutting plane 24. The cutting plane 24 in this case extends parallel to the working direction 41 and/or to the ground 4. In level terrain, Date Recue/Date Received 2022-02-04
12 the cutting plane 24 extends essentially horizontally. Starting from this, the cut crop 5 is conveyed through the channel opening 22 of the channel connection 21 into the chopper attachment 1 at an acute entry angle 20. For this purpose, the attachment conveying channel 23 has the acute entry angle 20 with respect to the cutting plane 24 or the ground 4.
The pre-press unit 6 directly adjoining the channel connection 21 has the five pre-press rollers 61-65. The pre-press rollers 61-65 are designed for conveying and compressing the crop. To do this, they are each rotated in a direction of rotation (not designated) around an axis of rotation (not designated). The direction of rotation of the upper pre-press rollers 61, 62 in this case is provided in the direction opposite to that of the lower pre-press rollers 63-65. As a result, the crop 5 is conveyed between the pre-press rollers 61-65 in the crop flow direction 50 and is compressed in the process. After compression, it is fed to the comminution device 7 immediately.
The conveying channel 14 extending between the pre-press rollers 61-65 has an acute conveying angle 60 with respect to the attachment conveying channel 23.
Despite a lower channel path 67 which is relatively long due to the three lower pre-press rollers 63-65, the chopper attachment 1 is relatively short due to the steep rise of the conveying channel 14. It has proven to be advantageous that an upper channel path 66 formed by the two upper pre-press rollers 61, 62 is shorter than the lower channel path 67.
The crop 5 is fed to the drum chopper 71 at an approximately right angle (not designated) and is cut there between the shear bar 72 and a chopping blade arranged on the drum chopper 71. Then it is conveyed in the direction of the ejection nozzle 91 in the part of the conveying channel 14 delimited by the drum chopper 71 and the conveyor base 73. The crop flows through the conditioner 8 in this case.
In order to eject the crop 5 as straightly as possible in the direction of the ejection nozzle 91, a wrap angle 70 is roughly provided, in which the crop 5 essentially concentrically revolves around the drum chopper 71.
The ejection nozzle 91 is furthermore inclined in relation to the direction of extension 42, which is approximately the vertical direction in flat terrain, by an angle of inclination 90 in the working direction 41. The ejection nozzle 91 assumes the angle of inclination 90 in an Date Recue/Date Received 2022-02-04
The pre-press unit 6 directly adjoining the channel connection 21 has the five pre-press rollers 61-65. The pre-press rollers 61-65 are designed for conveying and compressing the crop. To do this, they are each rotated in a direction of rotation (not designated) around an axis of rotation (not designated). The direction of rotation of the upper pre-press rollers 61, 62 in this case is provided in the direction opposite to that of the lower pre-press rollers 63-65. As a result, the crop 5 is conveyed between the pre-press rollers 61-65 in the crop flow direction 50 and is compressed in the process. After compression, it is fed to the comminution device 7 immediately.
The conveying channel 14 extending between the pre-press rollers 61-65 has an acute conveying angle 60 with respect to the attachment conveying channel 23.
Despite a lower channel path 67 which is relatively long due to the three lower pre-press rollers 63-65, the chopper attachment 1 is relatively short due to the steep rise of the conveying channel 14. It has proven to be advantageous that an upper channel path 66 formed by the two upper pre-press rollers 61, 62 is shorter than the lower channel path 67.
The crop 5 is fed to the drum chopper 71 at an approximately right angle (not designated) and is cut there between the shear bar 72 and a chopping blade arranged on the drum chopper 71. Then it is conveyed in the direction of the ejection nozzle 91 in the part of the conveying channel 14 delimited by the drum chopper 71 and the conveyor base 73. The crop flows through the conditioner 8 in this case.
In order to eject the crop 5 as straightly as possible in the direction of the ejection nozzle 91, a wrap angle 70 is roughly provided, in which the crop 5 essentially concentrically revolves around the drum chopper 71.
The ejection nozzle 91 is furthermore inclined in relation to the direction of extension 42, which is approximately the vertical direction in flat terrain, by an angle of inclination 90 in the working direction 41. The ejection nozzle 91 assumes the angle of inclination 90 in an Date Recue/Date Received 2022-02-04
13 attached state in which the upper link 12 of the lifting gear 11 carrying the chopper attachment 1 is tightened and/or a housing frame 17 of the housing 15 is aligned essentially vertically in flat terrain. As a result, a collision with cab structures (not shown) can be avoided for tractors 3 in which the driver's cab (not designated) is rotated in reverse mode R.
The inclination at the angle of inclination 90 also enables a very small distance (not designated) from the tractor when the chopper attachment 1 is attached to the rear lifting gear 11, in particular of such a tractor 3.
These measures, in particular the selected angle of inclination 90, the wrap angle 70, and the conveying angle 60, have the effect that a distance between the center of gravity (not shown) of the chopper attachment 1 and the tractor 3, in particular from its rear axle (not shown), is optimized in reverse mode R. The weight of the chopping assembly acting on the rear axle is therefore sufficiently low enough that even large modular attachment devices 2 can be operated on the chopper attachment 1 without having to use counterweights (not shown) on the front of the tractor 3.
The chopper attachment 1 is shown in a hay-harvesting assembly H in Fig. 2 (b). It therefore differs from the chopper attachment 1 in Figs. 1 (a) and (b) as well as 2 (a) in that it does not have a conditioner 8 which is arranged downstream of the drum chopper 71. When hay or grass is harvested, the crop 5 is therefore ejected, directly after the chopping, through the conveying channel 14 and the ejection nozzle 91, and from there through the ejection pipe 92 onto the loading wagon.
Furthermore, the chopping assembly of Fig. 2 (b) is differentiated by the attachment device 2 attached to the chopper attachment 1. This has a pick-up device 25 and is suitable for picking up swaths of hay or grass.
Fig. 3 shows the work train 100 from Fig. 1 in road operation S. In road operation S, the tractor 3 travels in forward mode V opposite the working direction 41. This is shown schematically on the basis of the direction of rotation 30 of the wheels 31.
The ejection pipe 92 is aligned and lowered in the working direction 41. In addition, a rear pipe part (not designated) is folded up relative to a front pipe part (not designated), so Date Recue/Date Received 2022-02-04
The inclination at the angle of inclination 90 also enables a very small distance (not designated) from the tractor when the chopper attachment 1 is attached to the rear lifting gear 11, in particular of such a tractor 3.
These measures, in particular the selected angle of inclination 90, the wrap angle 70, and the conveying angle 60, have the effect that a distance between the center of gravity (not shown) of the chopper attachment 1 and the tractor 3, in particular from its rear axle (not shown), is optimized in reverse mode R. The weight of the chopping assembly acting on the rear axle is therefore sufficiently low enough that even large modular attachment devices 2 can be operated on the chopper attachment 1 without having to use counterweights (not shown) on the front of the tractor 3.
The chopper attachment 1 is shown in a hay-harvesting assembly H in Fig. 2 (b). It therefore differs from the chopper attachment 1 in Figs. 1 (a) and (b) as well as 2 (a) in that it does not have a conditioner 8 which is arranged downstream of the drum chopper 71. When hay or grass is harvested, the crop 5 is therefore ejected, directly after the chopping, through the conveying channel 14 and the ejection nozzle 91, and from there through the ejection pipe 92 onto the loading wagon.
Furthermore, the chopping assembly of Fig. 2 (b) is differentiated by the attachment device 2 attached to the chopper attachment 1. This has a pick-up device 25 and is suitable for picking up swaths of hay or grass.
Fig. 3 shows the work train 100 from Fig. 1 in road operation S. In road operation S, the tractor 3 travels in forward mode V opposite the working direction 41. This is shown schematically on the basis of the direction of rotation 30 of the wheels 31.
The ejection pipe 92 is aligned and lowered in the working direction 41. In addition, a rear pipe part (not designated) is folded up relative to a front pipe part (not designated), so Date Recue/Date Received 2022-02-04
14 that the ejection pipe 92 projects into the working direction 41 less than the chopper attachment 1.
The attachment device 2 is also in a folded-in state G and therefore does not protrude beyond the tractor 3 in or opposite the transverse direction 43.
Date Recue/Date Received 2022-02-04
The attachment device 2 is also in a folded-in state G and therefore does not protrude beyond the tractor 3 in or opposite the transverse direction 43.
Date Recue/Date Received 2022-02-04
Claims (14)
1. A chopper attachment (1) which is intended for attaching to a tractor (3), in particular to a front or rear lifting gear of a tractor (3), and which has a channel connection (21) for attaching an attachment device (2), which is provided for harvesting crop (5), wherein a conveying channel (14) adjoins the channel connection (21) in a crop flow direction (50), which conveying channel extends through a pre-press unit (6) and a comminution unit (7) arranged downstream thereof, wherein an ejection nozzle (91) is arranged downstream of the comminution unit (7), through which ejection nozzle the crop (5) can be ejected, characterized in that the pre-press unit (6) directly adjoins the channel connection (21) and comprises at least two pre-press rollers (61-62) or more, wherein the conveying channel (14) in the pre-press unit (6) has an acute conveying angle (60) as relates to an entry angle (20) of the crop (5) into the channel connection (21).
2. The chopper attachment (1) according to claim 1, characterized in that an upper channel path (66) of the conveying channel (14) in the pre-press unit (6) is shorter than a lower channel path (67).
3. The chopper attachment (1) according to any of the preceding claims, characterized in that the pre-press unit (6) has two upper (61, 62) and three lower pre-press rollers (63-65), between which the conveying channel (14) extends.
4. The chopper attachment (1) according to any of the preceding claims, characterized in that the conveying angle (60) is approximately 15 -30 , in particular approximately 18 -25 .
5. The chopper attachment (1) according to the preamble of claim 1 or according to any of the preceding claims, characterized in that the ejection nozzle (91) is inclined in the working direction (41) relative to a direction of extension (42) which extends transversely to a working direction (41) of the chopper attachment (1).
6. The chopper attachment (1) according to any of the preceding claims, characterized in that the ejection nozzle (91) is arranged on a housing (15) of the chopper Date Recue/Date Received 2022-02-04 attachment (1) in a stationary manner.
7. The chopper attachment (1) according to any of the preceding claims, characterized in that the ejection nozzle (91) is supported on the housing (15) of the chopper attachment (1).
8. The chopper attachment (1) according to any of the preceding claims, characterized in that the ejection nozzle (91) is inclined relative to the direction of extension (42) by an angle of inclination (90) of approximately 4-15 , in particular of approximately 7-100, in the working direction (41).
9. The chopper attachment (1) according to any of the preceding claims, characterized in that the ejection nozzle (91) is arranged in the direction of extension (42) above a channel opening (22) of the channel connection (21), characterized in that the ejection nozzle (91) is arranged flush with the channel opening (22) in the working direction (41).
10.The chopper attachment (1) according to any of the preceding claims, characterized in that it has a power take-off shaft connection (16) for connecting to a power take-off shaft of the tractor (3) for driving its units (6, 7).
11.The chopper attachment (1) according to any of the preceding claims, characterized in that the comminution unit (7) has a shear bar (72) and a drum chopper (71), between which the crop (5) can be chopped, wherein the conveying channel (14) extends between the drum chopper (7) and a conveyor base (73), which is at least partially arranged concentrically to the drum chopper (71), wherein a wrap angle (70) of the conveying channel (14) around the drum chopper (71) is provided which is greater than 115 , particularly approximately 125 -165 , further particularly approximately 145 .
12.The chopper attachment (1) according to any of the preceding claims, characterized in that the pre-press unit (6) and the comminution unit (7) are rigidly connected to one another.
13.A chopping assembly which has a chopper attachment (1) with a channel connection Date Recue/Date Received 2022-02-04 (21), in particular a chopper attachment (1) according to any of the preceding claims, as well as an attachment device (2) that is attached to the channel connection (21) of the chopper attachment (1), wherein the attachment device (2) has an attachment conveying channel (23) through which the crop (5) can be fed to the channel connection (21) of the chopper attachment (1), wherein the chopper attachment (1) has a conveying channel (14) which adjoins the channel connection (21), wherein the attachment conveying channel (23) of the attachment device (2) extends into an area adjoining the channel connection (21) at an acute entry angle (20) as relates to the ground (4) and the conveying channel (14) of the chopper (1) extends into an area adjoining the channel connection (21) at an acute conveying angle (60) as relates to the attachment conveying channel (23) of the attachment device (2).
14.A work train (100) comprising a tractor (3), a chopper attachment (1) according to any of claims 1 to 12, or a chopping assembly according to claim 13, wherein the chopper attachment (1) is attached to a lifting gear of the tractor (3).
Date Recue/Date Received 2022-02-04
Date Recue/Date Received 2022-02-04
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020130146.4 | 2020-11-16 | ||
| DE102020130146.4A DE102020130146A1 (en) | 2020-11-16 | 2020-11-16 | Attachable chopper with a conveying channel for conveying crops and method for conveying crops |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3139206A1 true CA3139206A1 (en) | 2022-05-16 |
Family
ID=78621749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3139206A Pending CA3139206A1 (en) | 2020-11-16 | 2021-11-16 | Chopper attachment with a conveying channel for conveying a crop and method for conveying the crop |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4000375A1 (en) |
| CA (1) | CA3139206A1 (en) |
| DE (1) | DE102020130146A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021133033A1 (en) * | 2021-12-14 | 2023-06-15 | Maschinenfabrik Bernard Krone GmbH & Co. KG | WORK TRAIN WITH A TRACTOR AND A CHIPPER |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1185007B (en) * | 1962-07-31 | 1965-01-07 | Walter Gustav Brenner Dr Ing D | Forage harvesters |
| DE1657328A1 (en) * | 1967-10-28 | 1972-08-31 | Eberhardt Geb | Forage harvester arranged to the side of the tractor |
| IT8321025V0 (en) * | 1983-03-04 | 1983-03-04 | Feraboli Off Mecc | MACHINE PREPARED FOR ATTACHMENT TO A TRACTOR BOTH LATERALLY AND POSTERIORLY. |
| FI130525B (en) * | 2018-05-04 | 2023-11-01 | Oy El Ho Ab | Harvester for straw crop |
-
2020
- 2020-11-16 DE DE102020130146.4A patent/DE102020130146A1/en active Pending
-
2021
- 2021-11-15 EP EP21208159.0A patent/EP4000375A1/en active Pending
- 2021-11-16 CA CA3139206A patent/CA3139206A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP4000375A1 (en) | 2022-05-25 |
| DE102020130146A1 (en) | 2022-05-19 |
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