CA3144562A1 - Agricultural soil cultivation device and agricultural machine combination - Google Patents
Agricultural soil cultivation device and agricultural machine combination Download PDFInfo
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- CA3144562A1 CA3144562A1 CA3144562A CA3144562A CA3144562A1 CA 3144562 A1 CA3144562 A1 CA 3144562A1 CA 3144562 A CA3144562 A CA 3144562A CA 3144562 A CA3144562 A CA 3144562A CA 3144562 A1 CA3144562 A1 CA 3144562A1
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- soil cultivation
- tool
- working position
- frame component
- agricultural
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- 239000002689 soil Substances 0.000 title claims abstract description 146
- 239000000306 component Substances 0.000 claims description 84
- 229920000136 polysorbate Polymers 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
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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
- A01B49/00—Combined machines
- A01B49/02—Combined machines with two or more soil-working tools of different kind
- A01B49/027—Combined machines with two or more soil-working tools of different kind with a rotating, soil working support element, e.g. a roller
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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
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
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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
- A01B73/00—Means or arrangements to facilitate transportation of agricultural machines or implements, e.g. folding frames to reduce overall width
- A01B73/02—Folding frames
- A01B73/04—Folding frames foldable about a horizontal axis
- A01B73/044—Folding frames foldable about a horizontal axis the axis being oriented in a longitudinal direction
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
- Agricultural Machines (AREA)
- Transplanting Machines (AREA)
Abstract
The invention relates to an agricultural soil cultivation device (1) having: a support frame (2); a connecting device which is formed in a central portion (3) on the support frame (2); frame components (4, 5) which extend on opposite sides of the support frame (2) and are each connected in a pivotable manner to a joint (6; 7) providing a horizontal pivot axis, such that the frame components (4, 5) are pivotable between a working position and a non-working position; soil cultivation tools (12, 13) which are arranged, in the working position, ahead of the respectively associated frame component (4; 5) in the direction of travel; guide and re-compacting tools which are arranged, in the working position, behind the respectively associated frame component (4; 5) in the direction of travel, such that, in the working position, as seen from above, the associated joint (6; 7) and the associated frame component (4; 5) are arranged in each case in a central region of the arrangements, formed on the opposite sides of the support frame, comprising the soil cultivation tool (12; 13) and guide and re-compacting tool; a setting device which is set up to set a relative position of the soil cultivation tool (12; 13) relative to the guide and re-compacting tool; and a pivoting device which is set up to shift the frame components (4, 5) with the associated soil cultivation tool (12; 13) and the associated guide and re-compacting tool between the working position and the non-working position. An agricultural machine combination is also provided.
Description
Agricultural soil cultivation device and agricultural machine combination The invention relates to an agricultural soil cultivation device and to an agricultural machine combination.
Background Agricultural soil cultivation devices or machines are used to cultivate the soil in the field, wherein the soil is acted upon by means of implements or tools. For example, the soil is culti-vated by plowing. Another type of soil cultivation is the use of harrows to loosen upper layers of soil, break up clods of earth, create good crumbs for seedbed preparation, and / or control weeds.
In the case of soil cultivation devices, it can be provided that a plurality of soil cultivation tools are arranged one behind the other in the direction of travel of the agricultural tractor or tractor, which is used to move the soil cultivation device over the soil during field cultivation, wherein the soil cultivation tools can be of the same or different types. The various soil cultivation tools are usually held on a support frame.
The soil cultivation device can be coupled to an agricultural tractor in different ways. Soil culti-vation devices are known which releasably couple to the agricultural tractor and are pulled behind it. A distinction must be made here from soil cultivation devices that are connected to a three-point power lift of the agricultural tractor. With the help of such a three-point coupling, it is regularly possible to lift the soil cultivation device off the ground, in particular for transport on the road. However, the soil cultivation device can also be disengaged from the ground in the headland with the aid of the three-point power lift when working in the field.
Summary The object of the invention is to provide an agricultural soil cultivation device as well as an agricultural machine combination in which the soil cultivation device, which is mounted on the agricultural tractor by means of a three-point power lift, can be used more efficiently and safely.
To achieve this, an agricultural soil cultivation device according to independent claim 1 and an agricultural machine combination according to dependent claim 14 are created.
The dependent claims relate to embodiments.
Date recue / Date received 2021-12-21
Background Agricultural soil cultivation devices or machines are used to cultivate the soil in the field, wherein the soil is acted upon by means of implements or tools. For example, the soil is culti-vated by plowing. Another type of soil cultivation is the use of harrows to loosen upper layers of soil, break up clods of earth, create good crumbs for seedbed preparation, and / or control weeds.
In the case of soil cultivation devices, it can be provided that a plurality of soil cultivation tools are arranged one behind the other in the direction of travel of the agricultural tractor or tractor, which is used to move the soil cultivation device over the soil during field cultivation, wherein the soil cultivation tools can be of the same or different types. The various soil cultivation tools are usually held on a support frame.
The soil cultivation device can be coupled to an agricultural tractor in different ways. Soil culti-vation devices are known which releasably couple to the agricultural tractor and are pulled behind it. A distinction must be made here from soil cultivation devices that are connected to a three-point power lift of the agricultural tractor. With the help of such a three-point coupling, it is regularly possible to lift the soil cultivation device off the ground, in particular for transport on the road. However, the soil cultivation device can also be disengaged from the ground in the headland with the aid of the three-point power lift when working in the field.
Summary The object of the invention is to provide an agricultural soil cultivation device as well as an agricultural machine combination in which the soil cultivation device, which is mounted on the agricultural tractor by means of a three-point power lift, can be used more efficiently and safely.
To achieve this, an agricultural soil cultivation device according to independent claim 1 and an agricultural machine combination according to dependent claim 14 are created.
The dependent claims relate to embodiments.
Date recue / Date received 2021-12-21
- 2 -According to one aspect, an agricultural soil cultivation device is provided, comprising the fol-lowing: a support frame; a connecting device which is formed in a central portion on the support frame and is configured to be connected to a three-point power lift of an agricultural tractor;
frame components which extend on opposite sides of the support frame and are each pivotably connected to a joint providing a horizontal pivot axis, such that the frame components are pivotable between a working position, in which the frame component extends in the horizontal direction transversely to the direction of travel, and a non-working position, in which the frame component extends in the vertical direction; soil cultivation tools which are held on the respec-tively associated frame component and are formed along the frame component, wherein the soil cultivation tools, in the working position, are arranged ahead of the respectively associated frame component in the direction of travel; guide and re-compacting tools, which are held on the respectively associated frame component and are formed along the frame component, wherein the guide and re-compacting tools, in the working position, are arranged behind the respectively associated frame component in the direction of travel, such that in the working position, as seen from above, the associated joint and the associated frame component are each arranged in a central region of the arrangements, formed on opposite sides of the support frame, comprising the soil cultivation tool and the guide and re-compacting tool; a setting de-vice which is connected to the soil cultivation tool and is configured to set a relative position of the soil cultivation tool with respect to the guide and re-compacting tool;
and a pivoting device which is respectively connected to the frame components and is configured to shift the frame components with the associated soil cultivation tool and the associated guide and re-compact-ing tool between the working position and the non-working position.
According to a further aspect, an agricultural machine combination is created which has an agricultural tractor and an agricultural soil cultivation device, wherein the agricultural soil culti-vation device is connected to a three-point power lift of the agricultural tractor.
The soil cultivation device makes it possible, during operation, to act on the soil initially with the soil cultivation tools and then with the guide and re-compacting tools.
Attaching the soil cultivation device to the three-point power lift of an agricultural tractor allows the soil cultivation device to be shifted or lifted into different height positions relative to the ground with the aid of the three-point power lift. Independently of this, the soil cultivation tool can (additionally) be shifted into different positions relative to the guide and re-compacting tool and relative to the support frame with the aid of the setting device. In this way, the guide and re-compacting tools on the one hand and the soil cultivation tools on the other hand can be brought into different positions relative to the soil, for example to set different working depths.
Date recue / Date received 2021-12-21
frame components which extend on opposite sides of the support frame and are each pivotably connected to a joint providing a horizontal pivot axis, such that the frame components are pivotable between a working position, in which the frame component extends in the horizontal direction transversely to the direction of travel, and a non-working position, in which the frame component extends in the vertical direction; soil cultivation tools which are held on the respec-tively associated frame component and are formed along the frame component, wherein the soil cultivation tools, in the working position, are arranged ahead of the respectively associated frame component in the direction of travel; guide and re-compacting tools, which are held on the respectively associated frame component and are formed along the frame component, wherein the guide and re-compacting tools, in the working position, are arranged behind the respectively associated frame component in the direction of travel, such that in the working position, as seen from above, the associated joint and the associated frame component are each arranged in a central region of the arrangements, formed on opposite sides of the support frame, comprising the soil cultivation tool and the guide and re-compacting tool; a setting de-vice which is connected to the soil cultivation tool and is configured to set a relative position of the soil cultivation tool with respect to the guide and re-compacting tool;
and a pivoting device which is respectively connected to the frame components and is configured to shift the frame components with the associated soil cultivation tool and the associated guide and re-compact-ing tool between the working position and the non-working position.
According to a further aspect, an agricultural machine combination is created which has an agricultural tractor and an agricultural soil cultivation device, wherein the agricultural soil culti-vation device is connected to a three-point power lift of the agricultural tractor.
The soil cultivation device makes it possible, during operation, to act on the soil initially with the soil cultivation tools and then with the guide and re-compacting tools.
Attaching the soil cultivation device to the three-point power lift of an agricultural tractor allows the soil cultivation device to be shifted or lifted into different height positions relative to the ground with the aid of the three-point power lift. Independently of this, the soil cultivation tool can (additionally) be shifted into different positions relative to the guide and re-compacting tool and relative to the support frame with the aid of the setting device. In this way, the guide and re-compacting tools on the one hand and the soil cultivation tools on the other hand can be brought into different positions relative to the soil, for example to set different working depths.
Date recue / Date received 2021-12-21
- 3 -With the help of the pivoting device, the frame components extending on both sides can be shifted in a simple manner with the respectively associated tools between the (horizontal) working position and the (vertical) non-working position. Due to the arrangement of the joints providing the horizontal pivot axis via which the frame components are articulated, the torque to be absorbed at the joint is minimized in the central region of the arrangement with the soil tool and the guide and re-compacting tool (as seen from above).
A simplified support frame can be used, which does not necessarily have to extend in depth over the entire width of the soil cultivation device. Due to the independent adjustability of the soil cultivation tool relative to the guide and re-compacting tool, it can move upwards if the load is too high.
The arrangement of the joints in the central region of the arrangement with the soil tool and the guide and re-compacting tool (as seen from above) also supports a compact design. The distance between the center of gravity and the tractor's three-point power lift is reduced.
The setting device can be configured to shift the soil cultivation tools above the ground respec-tively between a first working position corresponding to a first working depth and a second working position corresponding to a second working depth, wherein the soil cultivation tool is shifted here in relation to the respectively associated guide and re-compacting tool between a first and a second relative position. The second relative position is different from the first rela-tive position of the soil cultivation tool with respect to the respectively associated guide and re-compacting tool. In the different relative positions, the respective soil cultivation tool may have a different distance from the soil to be cultivated. The working depth or height of the soil culti-vation tool can be set independently of the current position of the associated guide and re-compacting tool, in particular independently of the connection to the three-point power lift of the tractor.
The soil cultivation tools can be displaceable between the first and the second working position while maintaining a current pivot position of the respectively associated frame component. Re-gardless of the pivot position in which the respectively associated frame component is currently located, be it in an oblique position to the ground or in a substantially parallel (horizontal) po-sition to the ground, which may be different working positions, the soil cultivation tool can be shifted relative to this without it being necessary for this to also shift the guide and re-compact-ing tool. Rather, it can remain in a current position.
Date recue / Date received 2021-12-21
A simplified support frame can be used, which does not necessarily have to extend in depth over the entire width of the soil cultivation device. Due to the independent adjustability of the soil cultivation tool relative to the guide and re-compacting tool, it can move upwards if the load is too high.
The arrangement of the joints in the central region of the arrangement with the soil tool and the guide and re-compacting tool (as seen from above) also supports a compact design. The distance between the center of gravity and the tractor's three-point power lift is reduced.
The setting device can be configured to shift the soil cultivation tools above the ground respec-tively between a first working position corresponding to a first working depth and a second working position corresponding to a second working depth, wherein the soil cultivation tool is shifted here in relation to the respectively associated guide and re-compacting tool between a first and a second relative position. The second relative position is different from the first rela-tive position of the soil cultivation tool with respect to the respectively associated guide and re-compacting tool. In the different relative positions, the respective soil cultivation tool may have a different distance from the soil to be cultivated. The working depth or height of the soil culti-vation tool can be set independently of the current position of the associated guide and re-compacting tool, in particular independently of the connection to the three-point power lift of the tractor.
The soil cultivation tools can be displaceable between the first and the second working position while maintaining a current pivot position of the respectively associated frame component. Re-gardless of the pivot position in which the respectively associated frame component is currently located, be it in an oblique position to the ground or in a substantially parallel (horizontal) po-sition to the ground, which may be different working positions, the soil cultivation tool can be shifted relative to this without it being necessary for this to also shift the guide and re-compact-ing tool. Rather, it can remain in a current position.
Date recue / Date received 2021-12-21
- 4 -The soil cultivation tools can each be accommodated in a displaceable manner on the associ-ated frame component via a first partial connection and a second partial connection formed separately therefrom. The two partial connections each allow a relative shifting of the soil cul-tivation tool relative to the associated frame component, for example by means of a pivoting movement. Alternatively, more than two partial connections can be provided, which are used to hold or accommodate the soil cultivation tool on the respectively associated frame compo-nent.
The first and the second partial connection may be formed as a proximal and a distal partial connection relative to the central portion of the support frame. In one embodiment, the proximal and distal partial connections can be arranged in opposite end regions of the associated frame component. In addition, for example, at least one further partial connection can be provided in a central region between the proximal and the distal partial connection. In this or other embod-iments, the one or more partial connections are designed as an articulated connection in order to allow the relative shifting of the soil cultivation tool with respect to the associated frame component.
The first and / or the second partial connection can be arranged, relative to the joint, proximally to the central portion of the support frame when the associated frame component is arranged in the working position. The soil cultivation tool is thus also held at least in a region between the central portion of the support frame and the joint by means of at least one of the partial connections on the associated support frame.
The soil cultivation tool can be accommodated displaceably on the respectively associated frame component via a parallelogram connection. As an alternative to the parallelogram con-nection, linear adjustment or link gears with linear guides can be provided.
The parallelogram connection can be assigned an actuator of the setting device, by means of which the relative position of the soil cultivation tool with respect to the guide and re-compact-ing tool can be set. Hydraulic, electrical or magnetic actuators, for example, can be used as actuators. In one embodiment, the actuator can be formed with a hydraulic cylinder. If a plu-rality of partial connections are provided with which the cultivation tool is accommodated and held on the respectively associated frame component, different actuators can each be associ-ated with one of the partial connections. For example, a hydraulic cylinder can be provided at each partial connection, which cylinder is extended and retracted during operation, in order to pivot connection components relative to one another.
Date recue / Date received 2021-12-21
The first and the second partial connection may be formed as a proximal and a distal partial connection relative to the central portion of the support frame. In one embodiment, the proximal and distal partial connections can be arranged in opposite end regions of the associated frame component. In addition, for example, at least one further partial connection can be provided in a central region between the proximal and the distal partial connection. In this or other embod-iments, the one or more partial connections are designed as an articulated connection in order to allow the relative shifting of the soil cultivation tool with respect to the associated frame component.
The first and / or the second partial connection can be arranged, relative to the joint, proximally to the central portion of the support frame when the associated frame component is arranged in the working position. The soil cultivation tool is thus also held at least in a region between the central portion of the support frame and the joint by means of at least one of the partial connections on the associated support frame.
The soil cultivation tool can be accommodated displaceably on the respectively associated frame component via a parallelogram connection. As an alternative to the parallelogram con-nection, linear adjustment or link gears with linear guides can be provided.
The parallelogram connection can be assigned an actuator of the setting device, by means of which the relative position of the soil cultivation tool with respect to the guide and re-compact-ing tool can be set. Hydraulic, electrical or magnetic actuators, for example, can be used as actuators. In one embodiment, the actuator can be formed with a hydraulic cylinder. If a plu-rality of partial connections are provided with which the cultivation tool is accommodated and held on the respectively associated frame component, different actuators can each be associ-ated with one of the partial connections. For example, a hydraulic cylinder can be provided at each partial connection, which cylinder is extended and retracted during operation, in order to pivot connection components relative to one another.
Date recue / Date received 2021-12-21
- 5 -The guide and re-compacting tools can each be accommodated or arranged on the associated frame component. The guide and re-compacting tool can be mounted on the frame component by means of a rigid connection, such that a relative movement, for example by means of piv-oting, with respect to the frame component is prevented, apart from a rotation of tool elements about a support axle of the guide and re-compacting tool. A flange plate and /
or one or more support arms can be provided for mounting the guide and re-compacting tool on the frame component. With the help of the flange plate and / or the support arms, the support axle of the guide and re-compacting tool can be held in a fixed position relative to the frame component.
One or more tool elements, which are used for soil cultivation, can be rotatably mounted on the support axle.
The soil cultivation tools can each be formed with an arrangement of rotary harrow tines which extend along the associated frame component and are arranged underneath a gear pan and rotatably mounted. A transmission is arranged in the gear pan, to which the rotatably mounted rotary harrow tines on the one hand and a drive on the other are coupled in order to rotate the rotary harrow tines during operation. The arrangement of rotary harrow tines as well as the gear pan can extend substantially over the entire length of the associated frame component.
If the soil cultivation tool is shifted relative to the frame component (and relative to the guide and re-compacting tool), the gear pan and rotary harrow tines are shifted together, for example pivoted. The connection between the associated frame component and the soil cultivation tool, be it with one or more partial connections, can be connected to the gear pan on the soil tool side, for example on the cover side on a housing of the gear pan.
The guide and re-compacting tools can each be formed with a roller extending along the as-sociated frame component.
Actuators of the pivoting device that are pivotably accommodated on the support frame can pivot in a respective pivot plane of the frame component when the respectively associated frame component is shifted between the working position and the non-working position. The one or more actuators of the pivot device can each be formed, for example, with a hydraulic cylinder which extends and retracts when the frame components are pivoted and is thereby pivotably shifted in the pivot plane of the frame component.
At least one of the soil cultivation tools can be assigned an overload protection device which is configured to shift the at least one soil cultivation tool from a current working position to a raised position when an overload occurs on the at least one soil cultivation tool relative to the associated frame component and relative to the guide and re-compacting tool.
In the raised Date recue / Date received 2021-12-21
or one or more support arms can be provided for mounting the guide and re-compacting tool on the frame component. With the help of the flange plate and / or the support arms, the support axle of the guide and re-compacting tool can be held in a fixed position relative to the frame component.
One or more tool elements, which are used for soil cultivation, can be rotatably mounted on the support axle.
The soil cultivation tools can each be formed with an arrangement of rotary harrow tines which extend along the associated frame component and are arranged underneath a gear pan and rotatably mounted. A transmission is arranged in the gear pan, to which the rotatably mounted rotary harrow tines on the one hand and a drive on the other are coupled in order to rotate the rotary harrow tines during operation. The arrangement of rotary harrow tines as well as the gear pan can extend substantially over the entire length of the associated frame component.
If the soil cultivation tool is shifted relative to the frame component (and relative to the guide and re-compacting tool), the gear pan and rotary harrow tines are shifted together, for example pivoted. The connection between the associated frame component and the soil cultivation tool, be it with one or more partial connections, can be connected to the gear pan on the soil tool side, for example on the cover side on a housing of the gear pan.
The guide and re-compacting tools can each be formed with a roller extending along the as-sociated frame component.
Actuators of the pivoting device that are pivotably accommodated on the support frame can pivot in a respective pivot plane of the frame component when the respectively associated frame component is shifted between the working position and the non-working position. The one or more actuators of the pivot device can each be formed, for example, with a hydraulic cylinder which extends and retracts when the frame components are pivoted and is thereby pivotably shifted in the pivot plane of the frame component.
At least one of the soil cultivation tools can be assigned an overload protection device which is configured to shift the at least one soil cultivation tool from a current working position to a raised position when an overload occurs on the at least one soil cultivation tool relative to the associated frame component and relative to the guide and re-compacting tool.
In the raised Date recue / Date received 2021-12-21
- 6 -position, there is no longer any overload on the soil cultivation tool. In one embodiment, the overload protection device can be configured to automatically shift the at least one soil cultiva-tion tool between the current working position and the raised position.
In one embodiment, the overload protection device is formed with a sensor device which is configured to detect an overload (force) occurring on the soil cultivation tools during operation and to provide corresponding measurement signals that indicate the overload.
The measure-ment signals are sent to a control device which is connected to the sensor device and which is arranged on the agricultural tractor or the agricultural soil cultivation device. In response to this, the control device provides overload control signals which, by means of the setting device, cause the soil cultivation tools to be raised relative to the respectively associated frame com-ponent and relative to the guide and re-compacting tool compared to a previous working posi-tion (but remaining in contact with the soil) or completely from the soil, in order to counteract the overload. The lifting or raising takes place with the setting device assigned to the soil tools, which has one or more actuators which work together, for example with parallelogram connec-tions. The actuators can be formed, for example, with hydraulic cylinders.
The sensor device detects measured values which, in the event of an overload, are indicative of an excessive force acting on the soil cultivation tools. For example, they can indicate that a threshold value has been reached or exceeded. The sensor device can be formed with a force sensor. If hydraulic cylinders are used, these can be assigned a pressure sensor which, in the event of an overload, detects increased pressure values that indicate the overload.
In connection with the device for overload protection, a hydraulic valve can be provided in an alternative embodiment on a hydraulic cylinder, which is assigned as an actuator to at least one of the soil cultivation tools for the setting thereof (setting of the height relative to the soil), which from a predetermined (adjustable) pressure (overload or threshold pressure) allows hy-draulic oil to flow out of the hydraulic cylinder into an associated diaphragm accumulator. Such an overflow of the hydraulic oil takes place when an overload acts on the soil tool in the oper-ating or working position. The draining of the hydraulic oil into the diaphragm accumulator then causes the assigned soil cultivation tool for which the overload occurs, relative to the associ-ated frame component and relative to the respective guide and re-compacting tool - compared to the previously set working position - to automatically be raised (but remaining in contact with the soil) or completely lifted from the ground to counter the overload.
Here the hydraulic valve takes on the function of sensor and actuator. From a preset overload Date recue / Date received 2021-12-21
In one embodiment, the overload protection device is formed with a sensor device which is configured to detect an overload (force) occurring on the soil cultivation tools during operation and to provide corresponding measurement signals that indicate the overload.
The measure-ment signals are sent to a control device which is connected to the sensor device and which is arranged on the agricultural tractor or the agricultural soil cultivation device. In response to this, the control device provides overload control signals which, by means of the setting device, cause the soil cultivation tools to be raised relative to the respectively associated frame com-ponent and relative to the guide and re-compacting tool compared to a previous working posi-tion (but remaining in contact with the soil) or completely from the soil, in order to counteract the overload. The lifting or raising takes place with the setting device assigned to the soil tools, which has one or more actuators which work together, for example with parallelogram connec-tions. The actuators can be formed, for example, with hydraulic cylinders.
The sensor device detects measured values which, in the event of an overload, are indicative of an excessive force acting on the soil cultivation tools. For example, they can indicate that a threshold value has been reached or exceeded. The sensor device can be formed with a force sensor. If hydraulic cylinders are used, these can be assigned a pressure sensor which, in the event of an overload, detects increased pressure values that indicate the overload.
In connection with the device for overload protection, a hydraulic valve can be provided in an alternative embodiment on a hydraulic cylinder, which is assigned as an actuator to at least one of the soil cultivation tools for the setting thereof (setting of the height relative to the soil), which from a predetermined (adjustable) pressure (overload or threshold pressure) allows hy-draulic oil to flow out of the hydraulic cylinder into an associated diaphragm accumulator. Such an overflow of the hydraulic oil takes place when an overload acts on the soil tool in the oper-ating or working position. The draining of the hydraulic oil into the diaphragm accumulator then causes the assigned soil cultivation tool for which the overload occurs, relative to the associ-ated frame component and relative to the respective guide and re-compacting tool - compared to the previously set working position - to automatically be raised (but remaining in contact with the soil) or completely lifted from the ground to counter the overload.
Here the hydraulic valve takes on the function of sensor and actuator. From a preset overload Date recue / Date received 2021-12-21
- 7 -pressure, it allows the hydraulic oil to flow into the diaphragm accumulator independently, with-out the need for an additional sensor that sends the signal to an actuator.
This function is mapped mechanically in the valve. The hydraulic valve thus takes over the functions of the sensor device and control device and influences the setting device.
If the pressure in the hydraulic cylinder falls below the overload pressure again, the hydraulic oil automatically flows back into the hydraulic cylinder, whereby the soil cultivation tool is low-ered again, for example into the previously set working position.
The embodiments explained above in connection with the soil cultivation device can be pro-vided accordingly in connection with the agricultural machine combination.
In the various embodiments, the two frame components that extend on the opposite sides of the soil cultivation device (as seen from above) in the central region of the arrangement of the soil cultivation tool and the guide and re-compacting tool, can be made of a metal hollow profile, for example a metal tube having a round or angular cross section. The soil cultivation tools as well as the guide and re-compacting tools are directly or indirectly accommodated and held on this (i.e., via one or more connections).
Description of embodiments Further embodiments are explained below with reference to the drawings, in which:
Fig. 1 is a schematic perspective illustration of a soil cultivation device in a working position obliquely from the rear;
Fig. 2 is a schematic perspective illustration of the soil cultivation device from Fig. 1 in the working position obliquely from the front;
Fig. 3 is a schematic perspective illustration of the soil cultivation device from Fig. 1 in a non-working position obliquely from the rear;
Fig. 4 is a schematic perspective illustration of the soil cultivation device from Fig. 1 in the non-working position obliquely from the front;
Fig. 5 is a schematic perspective illustration of an arrangement with soil cultivation tool and guide and re-compacting tool in a first position relative to each other; and Fig. 6 is a schematic perspective illustration of the arrangement from Fig. 5 with a soil tool and guide and re-compacting tool in a second position relative to one another, wherein the soil cultivation tool is lowered towards the soil in relation to the guide and re-com-pacting tool.
Date recue / Date received 2021-12-21
This function is mapped mechanically in the valve. The hydraulic valve thus takes over the functions of the sensor device and control device and influences the setting device.
If the pressure in the hydraulic cylinder falls below the overload pressure again, the hydraulic oil automatically flows back into the hydraulic cylinder, whereby the soil cultivation tool is low-ered again, for example into the previously set working position.
The embodiments explained above in connection with the soil cultivation device can be pro-vided accordingly in connection with the agricultural machine combination.
In the various embodiments, the two frame components that extend on the opposite sides of the soil cultivation device (as seen from above) in the central region of the arrangement of the soil cultivation tool and the guide and re-compacting tool, can be made of a metal hollow profile, for example a metal tube having a round or angular cross section. The soil cultivation tools as well as the guide and re-compacting tools are directly or indirectly accommodated and held on this (i.e., via one or more connections).
Description of embodiments Further embodiments are explained below with reference to the drawings, in which:
Fig. 1 is a schematic perspective illustration of a soil cultivation device in a working position obliquely from the rear;
Fig. 2 is a schematic perspective illustration of the soil cultivation device from Fig. 1 in the working position obliquely from the front;
Fig. 3 is a schematic perspective illustration of the soil cultivation device from Fig. 1 in a non-working position obliquely from the rear;
Fig. 4 is a schematic perspective illustration of the soil cultivation device from Fig. 1 in the non-working position obliquely from the front;
Fig. 5 is a schematic perspective illustration of an arrangement with soil cultivation tool and guide and re-compacting tool in a first position relative to each other; and Fig. 6 is a schematic perspective illustration of the arrangement from Fig. 5 with a soil tool and guide and re-compacting tool in a second position relative to one another, wherein the soil cultivation tool is lowered towards the soil in relation to the guide and re-com-pacting tool.
Date recue / Date received 2021-12-21
- 8 -In Fig. 1 and 2, a soil cultivation device 1 is shown in a working position, in perspective, obliquely from the rear and obliquely from the front. A support frame 2 is provided, which is configured in a central portion 3 to be connected to a three-point power lift of an agricultural tractor (not shown) in a manner known per se. Frame components 4, 5, which in the embodi-ment shown are each designed as a tubular component, extend on opposite sides.
The frame components 4, 5 are pivotally accommodated on the support frame 2 via an associated joint 6, 7. The frame components 4, 5 are each assigned an actuator 10, 11 as part of a pivoting device 8, 9, with the actuation of which the frame components 4, 5 are shifted between the (horizontal) working position shown in Fig. 1 and 2 and a (vertical) non-working position, which is shown in Fig. 3 and 4.
The frame components 4, 5 are each assigned a soil cultivation tool 12, 13 (see Fig. 2) and a guide and re-compacting tool 14, 15 (see Fig. 1). With a view from above of the arrangement having the soil cultivation tool 12, 13 and the guide and re-compacting tool 14, 15 in the working position shown in Fig. 1 and 2, the joint 6, 7 and the frame components 4, 5 are arranged in a central region 16. In the embodiment shown, the hydraulic cylinders 10, 11 also extend along the central region 13.
If the frame components 4, 5 with the soil tools 12, 13 accommodated thereon and the guide and re-compacting tools 14, 15 also accommodated or mounted thereon are pivoted between the working position and the non-working position, the actuators 10, 11 also pivot in an upright (vertical) pivot plane.
The soil tools 12, 13 are arranged with the aid of a respectively assigned parallelogram con-nection 17, 18 on the associated frame component 4, 5 and can be displaced relative thereto.
In the embodiment shown, the parallelogram connections 17, 18 each have partial connections 17a, 17b, 18a, 18b which are formed in opposite end regions of the frame components 4, 5.
One or more actuators are associated with the parallelogram connections 17, 18, for example in the form of hydraulic cylinders, in order to effect the shifting of the soil cultivation tools 12, 13 relative to the associated frame component 4, 5. For this purpose, Fig. 4 and 5 show differ-ent shifting positions for an arrangement with a soil cultivation tool 12 and a guide and re-compacting tool 14. By actuating the associated parallelogram connection 18, the soil cultiva-tion tool 12 in Fig. 6 is lowered towards the soil relative to the frame component 4 in comparison with Fig. 5. In this way, a setting of the soil tool 14, in particular for changing a working depth, is made possible independently of a shifting position of the frame component 4 and of the guide and re-compacting tool 14. And in addition, the function of evasive action in the event of Date recue / Date received 2021-12-21
The frame components 4, 5 are pivotally accommodated on the support frame 2 via an associated joint 6, 7. The frame components 4, 5 are each assigned an actuator 10, 11 as part of a pivoting device 8, 9, with the actuation of which the frame components 4, 5 are shifted between the (horizontal) working position shown in Fig. 1 and 2 and a (vertical) non-working position, which is shown in Fig. 3 and 4.
The frame components 4, 5 are each assigned a soil cultivation tool 12, 13 (see Fig. 2) and a guide and re-compacting tool 14, 15 (see Fig. 1). With a view from above of the arrangement having the soil cultivation tool 12, 13 and the guide and re-compacting tool 14, 15 in the working position shown in Fig. 1 and 2, the joint 6, 7 and the frame components 4, 5 are arranged in a central region 16. In the embodiment shown, the hydraulic cylinders 10, 11 also extend along the central region 13.
If the frame components 4, 5 with the soil tools 12, 13 accommodated thereon and the guide and re-compacting tools 14, 15 also accommodated or mounted thereon are pivoted between the working position and the non-working position, the actuators 10, 11 also pivot in an upright (vertical) pivot plane.
The soil tools 12, 13 are arranged with the aid of a respectively assigned parallelogram con-nection 17, 18 on the associated frame component 4, 5 and can be displaced relative thereto.
In the embodiment shown, the parallelogram connections 17, 18 each have partial connections 17a, 17b, 18a, 18b which are formed in opposite end regions of the frame components 4, 5.
One or more actuators are associated with the parallelogram connections 17, 18, for example in the form of hydraulic cylinders, in order to effect the shifting of the soil cultivation tools 12, 13 relative to the associated frame component 4, 5. For this purpose, Fig. 4 and 5 show differ-ent shifting positions for an arrangement with a soil cultivation tool 12 and a guide and re-compacting tool 14. By actuating the associated parallelogram connection 18, the soil cultiva-tion tool 12 in Fig. 6 is lowered towards the soil relative to the frame component 4 in comparison with Fig. 5. In this way, a setting of the soil tool 14, in particular for changing a working depth, is made possible independently of a shifting position of the frame component 4 and of the guide and re-compacting tool 14. And in addition, the function of evasive action in the event of Date recue / Date received 2021-12-21
- 9 -an excessively high load (overload) on the soil cultivation tool 12 is made possible.
Provision can be made for an overload protection device for the soil cultivation tools 12, 13 to be formed on or with the actuators which are associated with the parallelogram connections 17, 18 and are, for example, in the form of hydraulic cylinders, as explained in more detail above.
In the embodiment shown, the soil cultivation tools 12, 13 are each formed with an arrange-ment of rotary harrow tines 19, 20 which extend in the longitudinal direction of the respectively associated frame component 4, 5. The rotary harrow tines 19, 20 are arranged below a gear pan 21, 22 and are rotatably mounted. Configurations for such a rotary harrow are known per se in various embodiments.
In the embodiment shown, the guide and re-compacting tools 14, 15 are formed with a respec-tive rotatably mounted bottom roller 14a, 15a. The guide and re-compacting tools 14, 15 are connected to the associated frame component 4, 5, for example rigidly, by means of a respec-tive flange plate 23 and support arms 24. Other guide or re-compacting tools may be provided.
In operation, the soil tools 12, 13 are leading in the direction of travel relative to the respectively associated frame component 4, 5. In contrast, the guide and re-compacting tools 14, 15 are arranged behind the respective frame component 4, 5.
The features disclosed in the above description, the claims, and the drawings may be of rele-vance, both individually and also in any combination, for implementing the various embodi-ments.
Date recue / Date received 2021-12-21
Provision can be made for an overload protection device for the soil cultivation tools 12, 13 to be formed on or with the actuators which are associated with the parallelogram connections 17, 18 and are, for example, in the form of hydraulic cylinders, as explained in more detail above.
In the embodiment shown, the soil cultivation tools 12, 13 are each formed with an arrange-ment of rotary harrow tines 19, 20 which extend in the longitudinal direction of the respectively associated frame component 4, 5. The rotary harrow tines 19, 20 are arranged below a gear pan 21, 22 and are rotatably mounted. Configurations for such a rotary harrow are known per se in various embodiments.
In the embodiment shown, the guide and re-compacting tools 14, 15 are formed with a respec-tive rotatably mounted bottom roller 14a, 15a. The guide and re-compacting tools 14, 15 are connected to the associated frame component 4, 5, for example rigidly, by means of a respec-tive flange plate 23 and support arms 24. Other guide or re-compacting tools may be provided.
In operation, the soil tools 12, 13 are leading in the direction of travel relative to the respectively associated frame component 4, 5. In contrast, the guide and re-compacting tools 14, 15 are arranged behind the respective frame component 4, 5.
The features disclosed in the above description, the claims, and the drawings may be of rele-vance, both individually and also in any combination, for implementing the various embodi-ments.
Date recue / Date received 2021-12-21
Claims (15)
1. Agricultural soil cultivation device (1), having:
- a support frame (2);
- a connecting device which is formed in a central portion (3) on the support frame (2) and is configured to be connected to a three-point power lift of an agricultural tractor;
- frame components (4, 5) which extend on opposite sides of the support frame (2) and are each connected in a pivotable manner to a joint (6; 7) providing a horizontal pivot axis, such that the frame components (4, 5) are pivotable between a working position, in which the frame component (4; 5) extends in the horizontal direction transversely to the direction of travel, and a non-working position, in which the frame component (4; 5) extends in the vertical direction;
- soil cultivation tools (12, 13) which are held on the respectively associated frame component (4; 5) and are formed along the frame component, wherein the soil cul-tivation tools (12, 13), in the working position, are arranged ahead of the respec-tively associated frame component (4; 5) in the direction of travel;
- guide and re-compacting tools (14, 15) which are held on the respectively associ-ated frame component (4; 5) and are formed along the frame component (4; 5), wherein the guide and re-compacting tools (14, 15), in the working position, are arranged behind the respectively associated frame component (4; 5) in the direction of travel, such that, in the working position, as seen from above, the associated joint (6; 7) and the associated frame component (4; 5) are each arranged in a cen-tral region of the arrangements, formed on opposite sides of the support frame, comprising the soil cultivation tool (12; 13) and the guide and re-compacting tool (14; 15);
- a setting device which is connected to the soil cultivation tool (12; 13) and is config-ured to set a relative position of the soil cultivation tool (12; 13) with respect to the to the guide and re-compacting tool (14; 15); and - a pivoting device which is respectively connected to the frame components (4, 5) and is configured to shift the frame components (4, 5) with the associated soil cul-tivation tool (12; 13) and the associated guide and re-compacting tool (14;
15) be-tween the working position and the non-working position.
- a support frame (2);
- a connecting device which is formed in a central portion (3) on the support frame (2) and is configured to be connected to a three-point power lift of an agricultural tractor;
- frame components (4, 5) which extend on opposite sides of the support frame (2) and are each connected in a pivotable manner to a joint (6; 7) providing a horizontal pivot axis, such that the frame components (4, 5) are pivotable between a working position, in which the frame component (4; 5) extends in the horizontal direction transversely to the direction of travel, and a non-working position, in which the frame component (4; 5) extends in the vertical direction;
- soil cultivation tools (12, 13) which are held on the respectively associated frame component (4; 5) and are formed along the frame component, wherein the soil cul-tivation tools (12, 13), in the working position, are arranged ahead of the respec-tively associated frame component (4; 5) in the direction of travel;
- guide and re-compacting tools (14, 15) which are held on the respectively associ-ated frame component (4; 5) and are formed along the frame component (4; 5), wherein the guide and re-compacting tools (14, 15), in the working position, are arranged behind the respectively associated frame component (4; 5) in the direction of travel, such that, in the working position, as seen from above, the associated joint (6; 7) and the associated frame component (4; 5) are each arranged in a cen-tral region of the arrangements, formed on opposite sides of the support frame, comprising the soil cultivation tool (12; 13) and the guide and re-compacting tool (14; 15);
- a setting device which is connected to the soil cultivation tool (12; 13) and is config-ured to set a relative position of the soil cultivation tool (12; 13) with respect to the to the guide and re-compacting tool (14; 15); and - a pivoting device which is respectively connected to the frame components (4, 5) and is configured to shift the frame components (4, 5) with the associated soil cul-tivation tool (12; 13) and the associated guide and re-compacting tool (14;
15) be-tween the working position and the non-working position.
2. Agricultural soil cultivation device (1) according to claim 1, characterized in that the setting device is configured to move the soil cultivation tools (12, 13) above the ground respectively between a first working position having a first working depth and a second working position having a second working depth, wherein the soil cultivation tool (12;
13) is shifted relative to the respective associated guide and re-compacting tool (14;
15) between a first and a second relative position.
13) is shifted relative to the respective associated guide and re-compacting tool (14;
15) between a first and a second relative position.
3. Agricultural soil cultivation device (1) according to claim 2, characterized in that the soil cultivation tools (12, 13) can be shifted between the first and the second working posi-tion while maintaining a current pivot position of the respectively associated frame com-ponent (4; 5).
4. Agricultural soil cultivation device (1) according to at least one of the preceding claims, characterized in that the soil cultivation tools (12, 13) are each accommodated in a displaceable manner on the associated frame component (4; 5) via a first partial con-nection and a second partial connection formed separately therefrom.
5. Agricultural soil cultivation device (1) according to claim 4, characterized in that the first and the second partial connection are formed as a proximal and a distal partial con-nection relative to the central portion of the support frame (2).
6. Agricultural soil cultivation device (1) according to claim 4 or claim 5, characterized in that the first and / or the second partial connection is arranged, relative to the joint, proximally to the central portion of the support frame when the associated frame com-ponent (4; 5) is arranged in the working position.
7. Agricultural soil cultivation device (1) according to at least one of the preceding claims, characterized in that the soil cultivation tool (12; 13) is accommodated displaceably via a parallelogram connection on the respectively associated frame component (4;
5).
5).
8. Agricultural soil cultivation device (1) according to claim 7, characterized in that an ac-tuator of the setting device is associated with the parallelogram connection, by means of the actuation of which the relative position of the soil cultivation tool (12; 13) can be set with respect to the guide and re-compacting tool (14; 15).
9. Agricultural soil cultivation device (1) according to at least one of the preceding claims, characterized in that the guide and re-compacting tools (14, 15) are each accommo-dated on the respective associated frame component (4; 5).
10. Agricultural soil cultivation device (1) according to at least one of the preceding claims, characterized in that the soil cultivation tools (12, 13) are each formed with an arrange-ment of rotary harrow tines which extend along the associated frame component (4; 5) and are arranged underneath a gear pan and rotatably mounted.
11. Agricultural soil cultivation device (1) according to at least one of the preceding claims, characterized in that the guide and re-compacting tools (14, 15) are each formed with a roller (14a; 15a) extending along the associated frame component (4; 5).
12. Agricultural soil cultivation device (1) according to at least one of the preceding claims, characterized in that actuators of the pivoting device which are pivotably mounted on the support frame (2) pivot between the working position and the non-working position in a respective pivot plane of the frame component (4; 5) when shifting the respectively associated frame component (4; 5).
13. Agricultural soil cultivation device (1) according to at least one of the preceding claims, characterized in that at least one of the soil cultivation tools (12; 13) is assigned an overload protection device which is configured to shift the at least one soil cultivation tool (12; 13) in operation when an overload occurs on the at least one soil cultivation tool (12; 13) relative to the associated frame component (4; 5) and relative to the guide and re-compacting tool (14, 15) from a current working position to a raised position.
14. Agricultural soil cultivation device (1) according to claim 13, characterized in that the overload protection device is configured to automatically shift the at least one soil cul-tivation tool (12; 13) between the current working position and the raised position.
15. Agricultural machine combination, having an agricultural tractor and an agricultural soil cultivation device (1) according to at least one of the preceding claims, wherein the agricultural soil cultivation device (1) is connected to a three-point power lift of the ag-ricultural tractor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20170047.3A EP3895514B1 (en) | 2020-04-17 | 2020-04-17 | Agricultural soil working device and agricultural machine combination |
| EP20170047.3 | 2020-04-17 | ||
| PCT/EP2021/058455 WO2021209263A1 (en) | 2020-04-17 | 2021-03-31 | Agricultural soil cultivation device and agricultural machine combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3144562A1 true CA3144562A1 (en) | 2021-10-21 |
Family
ID=70295004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3144562A Pending CA3144562A1 (en) | 2020-04-17 | 2021-03-31 | Agricultural soil cultivation device and agricultural machine combination |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3895514B1 (en) |
| CA (1) | CA3144562A1 (en) |
| ES (1) | ES2951863T3 (en) |
| PL (1) | PL3895514T3 (en) |
| WO (1) | WO2021209263A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7200926A (en) * | 1972-01-24 | 1973-07-26 | ||
| NL9001873A (en) * | 1990-08-24 | 1992-03-16 | Lely Nv C Van Der | SOIL TILLER. |
| DE10148814A1 (en) * | 2001-10-02 | 2003-04-10 | Lemken Gmbh & Co Kg | Harrow |
| DE202016002875U1 (en) * | 2016-05-07 | 2016-08-16 | Horsch Maschinen Gmbh | Soil cultivation tool for agricultural tillage machine and cutting element therefor |
-
2020
- 2020-04-17 PL PL20170047.3T patent/PL3895514T3/en unknown
- 2020-04-17 EP EP20170047.3A patent/EP3895514B1/en active Active
- 2020-04-17 ES ES20170047T patent/ES2951863T3/en active Active
-
2021
- 2021-03-31 CA CA3144562A patent/CA3144562A1/en active Pending
- 2021-03-31 WO PCT/EP2021/058455 patent/WO2021209263A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021209263A1 (en) | 2021-10-21 |
| PL3895514T3 (en) | 2023-10-09 |
| EP3895514B1 (en) | 2023-06-07 |
| EP3895514A1 (en) | 2021-10-20 |
| ES2951863T3 (en) | 2023-10-25 |
| EP3895514C0 (en) | 2023-06-07 |
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