Soil cultivation unit for an agricultural soil cultivation implement and agricultural soil cultivation implement

Abstract

The invention relates to a soil cultivation unit (10) for an agricultural soil cultivation implement, in particular for an agricultural hoe for mechanical weed control on an agricultural area (N), comprising at least one soil cultivation tool (12) which is configured to engage the soil (B) of the agricultural area (N) with an intended depth of engagement (T), a depth control wheel (14) which is rotatably attached to a wheel carrier (16) and is configured to guide the at least one soil cultivation tool (12) with an intended depth of engagement (T) in the soil (B) of the agricultural area (N), and an adjustment device (18) by means of which the position and / or orientation of the depth control wheel (14) can be adjusted to specify an intended depth of engagement (T).

Description

[0001] The invention relates to a soil cultivation unit for an agricultural soil cultivation implement according to the preamble of claim 1 and an agricultural soil cultivation implement according to the preamble of claim 10.

[0002] Agricultural tillage implements, such as hoes, are used for mechanical weed control on agricultural land. They are employed to mechanically remove unwanted weeds and other unwanted plants from the rows of cultivated crops, thereby increasing yields and / or reducing the use of chemical pesticides. To mechanically remove these unwanted weeds, agricultural tillage implements typically include tillage units with tools that penetrate the soil.In order to adapt the working depth of the tillage tools to the individual conditions on the field, for example to the soil conditions and / or to the cultivated crops, it is necessary to adjust the working depth of the tillage tools by means of an adjustment device via an adjustable depth control wheel.

[0003] However, existing soil cultivation units for agricultural implements feature adjustment mechanisms that make adjusting the working depth via the depth control wheel complicated, inflexible, and consequently inefficient and not very user-friendly. It is common practice to require additional tools to adjust the working depth using the depth control wheel. Furthermore, these known adjustment mechanisms often have a detent mechanism that only allows for coarse adjustments to fixed, predetermined positions.

[0004] The object underlying the invention is therefore to simplify the specification of an intended working depth by adjusting a depth control wheel using an adjustment device on soil cultivation units for agricultural soil cultivation equipment.

[0005] The task is solved with a soil cultivation unit of the type mentioned above, wherein the adjustment device comprises a movable stop body which is designed to be moved translationally to adjust the position and / or alignment of the depth control wheel.

[0006] The translationally movable stop body of the adjustment device for adjusting the position and / or orientation of the depth control wheel enables a significantly finer and more precise adjustment of the working depth of the tillage tools, in particular a fine and / or even stepless adjustment, as well as greater ease of movement when adjusting the working depth, without the need for additional special tools and / or high effort. In this way, adjusting the working depth using the adjustment device becomes considerably more practical and user-friendly for a machine operator.

[0007] Preferably, a rotation of the stop body results in a linear movement of the stop body relative to its bearing. This linear movement of the stop body preferably leads to an adjustment of the position and / or orientation of the depth control wheel. The adjustment of the position and / or orientation of the depth control wheel is preferably, in particular, an adjustment of the position and / or orientation of the depth control wheel relative to the at least one tillage tool of the soil cultivation unit, thereby determining the working depth of the at least one tillage tool. The soil cultivation unit is preferably designed as a tool guidance unit of an agricultural hoeing machine. The wheel carrier of the depth control wheel is preferably designed as a wheel fork.

[0008] Preferably, the adjustment device serves to adjust the height of the depth control wheel, in particular to adjust the height of the depth control wheel relative to a support body of the tillage unit and / or to the at least one tillage tool of the tillage unit. The tillage unit preferably comprises several tillage tools. The tillage tools can, for example, be designed as hoeing blades. The stop body of the adjustment device preferably functions as a variable stop. The working depth in the soil of the agricultural area is preferably a hoeing depth of the tillage tools, which is set by varying the height of the depth control wheel relative to the working surface of the tillage tools to adapt to the conditions on the field, for example, the soil conditions and / or the crops cultivated on the field.A desired intervention depth, especially hoeing depth, could be, for example, 2 cm intervention depth in the soil of the agricultural area.

[0009] In a preferred embodiment of the soil cultivation unit according to the invention, the translational movement of the stop body for adjusting the position and / or orientation of the depth control wheel can be achieved by means of a rotational movement of a transmission element of the adjustment device, wherein the transmission element is preferably kinematically and / or kinetically connected to the stop body and / or is a component of the stop body to achieve the translational movement of the stop body. Preferably, the transmission element is configured to transmit a torque acting on the transmission element to the stop body, in particular by converting the torque into a linear force on the stop body. By means of the linear force on the stop body, the stop body is preferably set into a linear movement.

[0010] Preferably, the transmission element is designed as a rotary spindle, torsion bar, threaded rod, and / or threaded bar. Preferably, the transmission element is configured to translate the rotational motion into linear motion. In particular, the transmission ratio can be defined by selecting the thread of the transmission element.

[0011] For example, one rotation of the transmission link can produce a linear movement of 1.2 mm for the stop body. A fine thread pitch enables precise and smooth movement of the stop body. Furthermore, the transmission link preferably allows for stepless and / or smooth and / or intricate movement of the stop body. This precise, smooth, and / or stepless adjustment of the stop body makes setting the working depth by adjusting the position and / or orientation of the depth control wheel user-friendly, convenient, and efficient. This allows for quick and convenient depth adjustment, ensuring high-quality work by the tillage unit and saving time during tillage operations.

[0012] In another preferred embodiment of the soil cultivation unit according to the invention, the adjusting device comprises an actuating element by means of which the adjusting device can be operated to move the drive body, wherein the actuating element is preferably kinetically and / or kinematically connected to the transmission element and / or is a component of the transmission element and / or can be actuated to bring about the rotational movement of the transmission element, in particular manually by a machine operator, and / or is designed as a crank, in particular as a hand crank, and / or can be secured against unintentional actuation by means of a locking element, which is in particular designed as a locking bracket or locking clamp. The actuating element preferably enables the adjusting device to be operated easily, in particular without significant effort and / or without tools, in particular without the use of special tools.The safety element is preferably designed to secure the actuator in such a way as to prevent unintentional rotation of the transmission element. The safety element can, for example, be designed as a spring clip. Alternatively, the actuator can be designed as a motor, e.g., a hydraulic or electric motor.

[0013] In a further preferred embodiment of the soil cultivation unit according to the invention, the wheel carrier has a stop area which is designed to bear in contact with the stop body of the adjustment device in an intended position and / or orientation of the depth control wheel for specifying an intended working depth, wherein the stop area is preferably arranged at the end of the wheel carrier facing away from the depth control wheel and / or facing the adjustment device. Preferably, the stop area is designed as a stop surface. In particular, the stop area is designed such that the stop body of the adjustment device can bear in contact with the stop area over its entire width and / or its entire height.The stop area can, for example, be arranged between two struts of the wheel carrier and / or be designed, for example, as a flat sheet metal section arranged between the struts.

[0014] In a further development of the soil cultivation unit according to the invention, the position and / or orientation of the depth control wheel is adjustable by a pivoting movement of the depth control wheel, wherein the wheel carrier is preferably rotatably mounted at a pivot point, in particular on a support body of the soil cultivation unit, such that the depth control wheel can be pivoted by a rotational movement of the wheel carrier about the pivot point. Alternatively or additionally, the rotational movement of the wheel carrier for pivoting the depth control wheel can be brought about by moving the stop body, in particular by generating a torque about the pivot point, by exerting a force of the stop body on the wheel carrier in the stop area.Preferably, the stop body is designed to press on the wheel carrier in the stop area and consequently generate a torque around the pivot point, so that the wheel carrier is rotated around the pivot point and the depth control wheel is consequently pivoted.

[0015] The at least one tillage tool, the depth control wheel, and the adjustment device are preferably arranged together on the support body of the tillage unit. The pivoting of the depth control wheel is preferably limited within a defined range by the contact of the stop body against the stop area. A desired travel state of the movable stop body preferably results in a desired position and / or orientation of the depth control wheel by means of a deliberate limitation of the depth control wheel's pivoting movement by means of the rotatably mounted wheel carrier.

[0016] Furthermore, a soil cultivation unit according to the invention is advantageous in which the adjusting device comprises a coupling element via which the adjusting device is kinematically and / or kinetically coupled to the wheel carrier, wherein the coupling element preferably kinematically and / or kinetically couples the transmission element and / or the stop body of the adjusting device to the wheel carrier.

[0017] Alternatively or additionally, the coupling element is attached at one end to a mounting extension of the transmission element and / or the stop body and / or at the other end to a mounting extension of the wheel carrier, particularly in the immediate vicinity of the stop area. Alternatively or additionally, the coupling element is designed as a spring, particularly as a coil spring and / or as a tension spring.

[0018] Alternatively or additionally, the coupling element ensures contact between the stop body of the adjusting device and the stop area of ​​the wheel carrier with a defined contact force by exerting a stop force, in particular a tensile force, on the wheel carrier. Alternatively or additionally, the coupling element is connected to the transmission element and / or the stop body of the adjusting device in such a way that the force exerted by the transmission element on the wheel carrier to ensure contact between the stop body and the stop area adapts depending on the movement of the stop body.

[0019] Alternatively or additionally, the coupling element is designed and / or arranged such that, if a force acting on the coupling element by the wheel carrier is exceeded, particularly a tensile force, the stop area is separated by a rotational movement of the wheel carrier around the pivot point. The coupling element preferably ensures that the stop body is always firmly in contact with the stop area with a defined force. In particular, a coupling element designed as a spring, especially a tension spring, pulls the wheel carrier in the immediate vicinity of the stop area towards the stop body. In this way, it can be ensured in a working position of the tillage unit, particularly when the depth control wheel is in contact with the ground, that the intended position and / or orientation of the depth control wheel is always maintained.

[0020] Preferably, the coupling element, in particular a coupling element designed as a spring, exerts a tensile force and a resulting torque on the wheel carrier, which acts against a torque around the pivot point caused by the weight of the depth control wheel acting on the wheel carrier, so that the depth control wheel is not moved out of its intended position and / or orientation by its weight in a transport position of the tillage unit in which the ground contact of the depth control wheel is lifted (the depth control wheel does not "fall" towards the ground in the transport position).

[0021] The coupling element, particularly the coupling element designed as a spring, preferably allows the stop area of ​​the wheel carrier to move away from the stop body against the spring force, thus creating damping, in the working position with ground contact and / or a fastening device of the soil cultivation unit, particularly a frame clamp, in a transport position with ground contact lifted. The stop area preferably moves away from the stop body when the force acting on the coupling element from the wheel carrier exceeds the force acting on the wheel carrier from the coupling element, particularly when the spring tension is exceeded.

[0022] Furthermore, a soil cultivation unit according to the invention is preferred, which includes a limit stop for the wheel carrier, in particular for limiting the rotational movement of the wheel carrier about the pivot point and / or the pivoting movement of the depth control wheel, wherein the limit stop is preferably designed separately from the stop body of the adjustment device and / or is arranged along a rotational path of the wheel carrier at a distance from the stop body of the adjustment device and / or, by means of the distance from the stop body, together with the stop body, defines a rotational range for the wheel carrier and / or a pivoting range for the depth control wheel and / or is part of the carrier body of the soil cultivation unit and / or is designed and / or arranged in such a way that a pivoting movement of the depth control wheel is limited to avoid a collision of the depth control wheel with the at least one soil cultivation tool.Preferably, the rotation range and / or the swivel range are variably adjustable by means of the movement of the stop body.

[0023] The limiting body preferably restricts the rotational movement of the wheel carrier in the direction of rotation away from the stop body. By limiting the rotational movement of the wheel carrier away from the stop body, a pivoting movement of the depth control wheel towards the tillage tool is preferably restricted to prevent collisions and resulting damage. By defining the pivoting range for the depth control wheel, it is preferably possible for the depth control wheel to perform a pivoting movement within a defined range between the stops formed by the limiting body and the stop body, against the force of the coupling element designed as a spring.

[0024] In another preferred embodiment of the soil cultivation unit according to the invention, the soil cultivation unit comprises a fastening device for attaching the soil cultivation unit to a support beam of an agricultural soil cultivation implement, which is deflectable to move the soil cultivation unit into a raised transport position and into a lowered working position, in particular by means of a controllable actuator, wherein by enabling a spacing of the stop area by a rotational movement of the wheel carrier about the pivot point by exceeding a force acting by the wheel carrier on the coupling element, in particular tensile force, by defining the rotation range for the wheel carrier by spacing the stop body and the limit stop, the space requirement of the soil cultivation unit in the transport position of the soil cultivation unit is reduced.

[0025] The mounting device is preferably designed as a parallelogram linkage. The actuator is preferably designed as a hydraulic cylinder. Raising into the transport position and / or lowering into the working position preferably occurs parallel to the ground of the agricultural area and / or relative to the support beam of the tillage implement.The space requirement of the soil cultivation unit in the transport position can be reduced in particular by allowing the depth control wheel, when in contact with the fastening device, especially a frame clamp of the fastening device for clamping to the support beam of the soil cultivation implement, to deflect against the tensile force of the coupling element designed as a spring and the rotation range of the wheel carrier and / or the swivel range of the depth control wheel of the fastening device, especially the frame clamp of the fastening device, until the wheel carrier abuts the limit stop, by means of the coupling element designed as a spring and the rotation range of the wheel carrier and / or the swivel range of the depth control wheel of the fastening device, especially the frame clamp of the fastening device.

[0026] The depth control wheel can therefore preferably be pressed down by the frame clamp when the tillage unit is raised, allowing the tillage tools to be raised further relative to the depth control wheel, as the lifting height is not limited by the depth control wheel until the limit stop is reached. Since the depth control wheel preferably usually moves against the frame clamp in the transport position, and the stop area of ​​the wheel carrier is thus usually spaced away from the stop body in the transport position, the transport position is independent of the travel state of the variable stop body.

[0027] In a further development of the soil cultivation unit according to the invention, the adjustment device comprises an adjustment status indicator by means of which the current adjustment status of the adjustment device can be read, in particular the current travel status of the stop body and / or the current adjustment status of the position and / or orientation of the depth control wheel. The adjustment status indicator preferably comprises a display element which is kinematically and / or kinetically connected to the stop body and / or the transmission element such that the display element performs a linear movement along a display scale of the adjustment status indicator when the stop body is moved. The display scale preferably comprises markings, in particular a sequence of a number of graduations and / or numerical values ​​on a display surface.

[0028] The indicator body is preferably designed such that it visually points to the scale, in particular to a marking corresponding to the current adjustment state. The markings preferably each correspond to an adjustment state. Consequently, the adjustment state indicator preferably shows the current setting of the stop body. The spacing of the markings can, for example, be selected such that seven revolutions of the transmission element and / or the actuating body each correspond to a movement of the indicator body between two adjacent markings, for example, from one graduation mark to the other. Preferably, the adjustment state indicator, in particular the display scale, is adapted to a scale for indicating a setting of the tillage tool, in particular to a detent and / or a scale for adjusting the tillage tines.By adapting the adjustment status indicator to the hoe handle adjustment, the adjustment of the cutting depth is preferably simplified, since a matching setting, for example a setting of a first graduation mark of the adjustment status indicator and a first graduation mark of the hoe handle adjustment as well as a setting of a fourth graduation mark of the adjustment status indicator and a fourth graduation mark of the hoe handle adjustment, each corresponds to the same cutting depth, for example a hoeing depth of 2 cm.

[0029] The problem underlying the invention is further solved by an agricultural soil cultivation implement of the type mentioned at the outset, wherein the soil cultivation units are designed according to one of the embodiments described above. With regard to the advantages and modifications of the agricultural soil cultivation implement, reference is therefore made to the advantages and modifications of the soil cultivation unit according to the invention.

[0030] Preferred embodiments of the invention are explained and described in more detail below with reference to the accompanying drawings. These show: Fig. 1 a perspective view of a soil cultivation unit according to the invention in a working position; Fig. 2 the soil cultivation unit from Fig. 1 in a side view; Fig. 3 an adjustment device, a depth control wheel and a soil cultivation tool of a soil cultivation unit according to the invention in a detailed side view; Fig. 4a a side detail view of a depth control wheel and a soil cultivation tool of a soil cultivation unit according to the invention in a first setting; Fig. 4b a side detail view of a depth control wheel and a soil cultivation tool of a soil cultivation unit according to the invention in a second setting; Fig. 5 a perspective view of a soil cultivation unit according to the invention in a transport position; and Fig. 6 the soil cultivation unit from Fig. 5 in a side view.

[0031] The Fig. 1 and Fig. Figure 2 shows a soil cultivation unit 10 according to the invention for an agricultural soil cultivation implement, in particular for an agricultural hoe for mechanical weed control on agricultural land, wherein the illustrated soil cultivation unit 10 is in a working position. In the Fig. Figure 1 shows the soil cultivation unit 10 in a perspective view. Fig. Figure 2 shows the soil cultivation unit 10 in a side view.

[0032] In the illustrated embodiment, the soil cultivation unit 10 comprises three soil cultivation tools 12 designed as hoe blades, which engage the soil B of the cultivated area with a depth of engagement T for mechanical weed control. The depth of engagement T of the soil cultivation tools 12 is adjustable via a depth control wheel 14, which is rotatably mounted on a wheel carrier 16 designed as a wheel fork, and by means of an adjustment device 18 for adjusting the alignment and / or position of the depth control wheel 14.

[0033] The tillage tools 12, the depth control wheel 14 with the wheel carrier 16, and the adjustment device 18 can be mounted on a support beam of an agricultural tillage implement, in particular an agricultural hoe, via a support body 32 and a fastening device 44 using a frame clamp 48. In the illustrated embodiment of the tillage unit 10, the fastening device 44 is designed as a parallelogram linkage, which can be deflected by means of an actuator 46 designed as a hydraulic cylinder such that the tillage unit 10 can be moved between a position as shown in the Fig. 1 and Fig. 2 shown working position, in which the soil cultivation tools 12 and the depth control wheel 14 have soil contact with the soil B, and a transport position, in which the soil cultivation tools 12 and the depth control wheel 14 are no longer in contact with the soil B.

[0034] To adjust the position and / or orientation of the depth control roller 14 for setting the working depth T of the tillage tools 12 in the soil B, the adjustment device 18 comprises a movable stop body 20, which forms a stop for the wheel carrier 16 in a stop area 28 located at a first end 30a of the wheel carrier 16. By moving the stop body 20, the position of the stop for the stop area 28 of the wheel carrier 16 is adjusted such that the stop body 20 specifies an intended position and / or orientation for the depth control wheel 14 mounted at a second end 30b of the wheel carrier 16 opposite the first end 30a of the wheel carrier 16.The stop area 28 of the wheel carrier 16 is designed as a contact surface for the stop body 28 of the adjusting device 18, so that the stop body 20 is in contact with the stop area 28 of the wheel carrier 16 in an intended position and / or orientation of the depth guide wheel 14 for setting an intended engagement depth T, in particular with a defined pressure force.

[0035] To adjust the intended position and / or orientation of the depth control wheel 14 for setting the working depth T by means of the adjusting device 18, the adjusting device 18 comprises an actuating element 24 designed as a hand crank, wherein the actuating element 24 is secured against unintentional actuation by means of a locking element 26 designed as a bracket. In an alternative embodiment not shown, the actuating element 24 is designed as a motor, in particular a hydraulic or electric motor. The actuating element 24 designed as a hand crank is kinetically and / or kinematically connected to a transmission element 22 of the adjusting device 18, so that when the actuating element 24 is rotated, for example by turning the actuating element 24 by a machine operator of the tillage implement, the transmission element 22 kinetically and / or kinematically connected to the actuating element 24 can be set into rotation.The transmission element 22 in turn is kinetically and / or kinematically connected to the movable stop body 20, wherein the stop body 20 can be moved linearly by a rotational movement R of the actuating body 24 and / or of the transmission element 22 by a linear movement L of the stop body 20.

[0036] The transmission element 22 is preferably designed as a rotary spindle and / or a threaded rod, whereby the transmission ratio by which the rotational movement R is converted into the linear movement L can be determined by a targeted selection of the thread characteristics, for example, the thread pitch, such that the adjustment of the movable stop body 20 can be carried out with high accuracy and precision, and at the same time quickly and easily. In this way, a precise and rapid adjustment of the engagement depth T via the depth control wheel 14 can be performed by means of the adjusting device 18 without significant effort and without the need for special tools.

[0037] In the Fig. 3 are a soil cultivation tool 12, a depth control wheel 14 with a wheel carrier 16, and an adjustment device 18 for adjusting the working depth T in the soil B of the soil cultivation tool 12 by adjusting the position and / or orientation of the depth control wheel 14 of a soil cultivation unit according to the invention, for example as in the Fig. 1 and Fig. 2 shown, in a detailed side view.

[0038] The depth control wheel 14, which rolls over the surface of the soil B, determines the working depth T of the tillage tools 12 in the soil B of the agricultural area. By adjusting the position and / or orientation of the depth control wheel 14, the vertical distance between the depth control wheel 14 and the tillage tools 12 can be adjusted to change the working depth T.

[0039] To adjust the position and / or alignment of the depth control wheel 14, the linearly movable stop body 20 of the adjustment device 18 is moved linearly by a rotational movement R of the actuating body 24, which is designed as a crank, and the resulting rotational movement R of the transmission element 22, which translates the rotational movement R into a linear movement L of the stop body 20. The linear movement of the stop body 20, in turn, limits a rotational movement D of the wheel carrier 16 about a pivot point P, at which the wheel carrier 16 is mounted on the support body 32, by the contact surface 28 of the wheel carrier 16 against the stop body 20.By limiting the rotational movement D of the wheel carrier 16 about the pivot point P, a pivoting movement S of the depth control wheel 14 is simultaneously limited for adjusting the position and / or orientation of the depth control wheel 14 and consequently for adjusting the engagement depth T. Therefore, the linear movement of the stop body 20 by means of the adjusting device 18, the contact of the stop area 28 with the stop body 20, and the resulting limitation of the rotational movement D of the wheel carrier 16, as well as the pivoting movement S of the depth control wheel 14, result in a desired position and / or orientation of the depth control wheel 14, from which the intended engagement depth T is achieved.

[0040] To ensure that the stop area 28 of the wheel carrier 16 is always in contact with the linearly movable stop body 20 as intended, so that the intended alignment and / or position of the depth control wheel 14 and the resulting engagement depth T are always guaranteed, the adjusting device 18 includes a coupling element 34. The coupling element 34 is designed as a coil spring and is attached at a first end 36a to a mounting extension 28 of the adjusting device 18, in particular of the transmission element 22, and at a second end 36b to a mounting extension 40 of the wheel carrier 16.

[0041] The coupling element 34, designed as a spiral spring, consequently exerts a tension spring force on the fastening extensions 38, 40, which in particular exerts a tensile force on the wheel carrier 16 in the area of ​​the stop area 28, which pulls the stop area 28 in the direction of the stop body 20, so that the stop body 20 and the stop area 28 are pressed together with a coupling force generated by the coupling element 34 and the contact between stop body 20 and stop surface 28 is always ensured to guarantee the intended alignment and / or position of the depth guide wheel 14 and the resulting engagement depth T.

[0042] To limit the rotational movement D of the wheel carrier 16 about the pivot point P in the direction away from the stop body 20, the soil cultivation unit 10 includes a limit stop 42, which is arranged, in particular, on the carrier body 32. By limiting the rotational movement D in the direction away from the stop body 20, the limit stop 42, together with the stop body 20, defines a rotational range for the wheel carrier 16 about the pivot point P. Consequently, by limiting the rotational movement D through the definition of a rotational range by means of the limit stop 42 and the stop body 20, a pivoting range is defined to limit the pivoting movement S of the depth control wheel 14.In this way, the limit stop 42 and the limitation of the rotational movement D and the pivoting movement S prevent the depth control wheel 14 from colliding with the soil cultivation tools 12 during a pivoting movement S in the direction of the soil cultivation tools 12. Such a collision could otherwise lead to damage to the depth control wheel 14 and / or the soil cultivation tools 12.

[0043] Furthermore, the rotation range D of the wheel carrier 16, defined by the stop body 20 and the limit stop 42, and / or the advance of the pivoting range S of the depth guide wheel 14, enables the stop area 28 of the wheel carrier 16 to detach from contact with the stop body 20 against the tensile force acting on the wheel carrier 16 by the coupling element 34, in particular against the tensile force acting on the wheel carrier 16 by the spring force of the coupling element 34 designed as a spring.This allows a gap to develop between the stop body 20 and the stop area 28, provided that a force acting against the force of the coupling element 34 acting on the wheel carrier 16 exceeds the tensile force of the coupling element 34, enabling the wheel carrier 16 to perform a rotational movement D away from the stop body 20 in the direction of the limit stop 42 until it abuts the limit stop 42. Such a scenario can occur, for example, if the soil conditions of the agricultural land are uneven, for example, due to obstacles in the soil, in particular stones, and / or uneven soil contours, so that the depth control wheel 14 has a defined freedom of movement to adapt to the different soil conditions and / or to avoid obstacles in the soil and / or to follow uneven soil contours.

[0044] If the depth control wheel 14 passes over one or more obstacles in the soil B, the soil cultivation tools 12 are also lifted by passing over the obstacle with the depth control wheel 14, so that damage to the soil cultivation tools 12 by collisions with obstacles in the soil B is prevented.

[0045] In the Fig. 4a and Fig. Figure 4b shows a side view of a depth control wheel 14 and a soil cultivation tool 12 of a soil cultivation unit 10 according to the invention, each in different settings of the position and / or orientation of the depth control wheel 14 and different height settings of the soil cultivation tool 12.

[0046] The soil cultivation tools 12 of the soil cultivation unit 10 are each height-adjustable via a tiller handle 56 by means of a detent 58 to define the relative position of the soil cultivation tools 12 to the carrier body 32 of the soil cultivation unit 10. By adjusting the height of the soil cultivation tools 12 by means of the detent 58 of the tiller handles 56, a lower height difference H2 can be set as opposed to a larger height difference H1, as in the Fig. As shown in 4b, a flatter tool guidance of the respective soil cultivation unit 10 is realized, in which the soil cultivation unit 10 runs significantly flatter over the ground B of the usable area due to the reduced height difference H2.

[0047] The adjusting device 18 for setting the position and / or orientation of the depth control wheel 14 further enables the working depth T in the soil B to be adapted by means of the tillage tools 12 to the setting of the tillage tools 12 via the detents 58 of the tillage tines 56, so that an intended working depth T is ensured independently of any setting of the tillage tools 12 for setting a desired height difference H1, H2. This allows for the use of differently shallow tool guides of the tillage unit 10 while maintaining a constant working depth T in the soil B of the agricultural area.

[0048] To simplify the adjustment of the working depth T as a function of the setting of the tillage tools 12 via the detents 58 of the tiller tines 56, so that the setting of the adjustment device 18 and thus the setting of the depth control wheel 14 can be quickly and conveniently adapted to the setting of the tillage tools 12 by means of the detents 58, the adjustment device 18 includes an adjustment status indicator 50 with a display scale 54 and a linearly movable display body 52. ​​The adjustment status indicator 50 provides a machine operator with a clear and quick reading of the current setting of the adjustment device 18, in particular the current travel state of the stop body 20 and / or the current pivot state of the depth control wheel 14.The display body 52 is kinematically and / or kinetically connected to the transmission element 22 in such a way that a rotational movement R of the transmission element 22 results in a linear movement L of the display body 52 along the display scale 54, so that the display body 52 indicates the current setting on the display scale 54 corresponding to the display body 52, for example by displaying graduations and / or numerical values ​​of the display scale 54, depending on the linear movement L of the stop body 20.

[0049] To ensure that the settings of the tillage tools 12 via the indexing 58 and the depth control wheel 14 via the adjustment device 18 can be quickly and easily adjusted to each other, in order to conveniently set the resulting working depth T, the display scale 54 and the indexing 58 are aligned. For example, if the adjustment device 18 is set so that the adjustment status indicator 50 displays a setting on the first graduation mark of a multi-gradient display scale 54 by means of the indicator body 52, this corresponds, for an intended working depth T, which could, for example, correspond to a hoeing depth of 2 cm, to a setting in the first detent position of the indexing 58 of the tiller tines 56. This setting is shown by way of example in the Fig. 4a shown. In the Fig. Figure 4b shows as a second example that setting the tillage tools 12 to the eighth detent position of the detent 58, together with setting the depth control wheel 14 by means of the adjustment device 18 to the eighth graduation mark of the display scale 54 of the adjustment status indicator 50, also leads to an intended working depth T, which corresponds, for example, to a hoeing depth of 2 cm. Accordingly, the working depth T remains the same, even though the height differences H1, H2 in the Fig. 4a and Fig. 4b differ from each other. Consequently, a flatter tool guide, as in the Fig. 4b shown, can be achieved without unintentionally changing the hoeing depth.

[0050] The Fig. 5 and Fig. Figure 6 shows a soil cultivation unit 10 according to the invention in a transport position, wherein the soil cultivation unit 10 is in the Fig. 5 in a perspective representation and in the Fig. 6 can be seen in a side view.

[0051] To move the soil cultivation unit 10 into the transport position, the fastening device 44 can be deflected by means of the actuator 46 such that the support body 32, together with the soil cultivation tools 12 arranged on it, the depth control wheel 14 with the wheel carrier 16, and the adjustment device 18, is lifted parallel to the ground B to a lifting height A. Consequently, the soil engagement of the soil cultivation tools 12 and the ground contact of the depth control wheel 14 with the ground B are released.

[0052] Because the wheel carrier 16 can perform a rotational movement D within a rotational range defined by the limit stop 42 and the stop body 20, and can rotate away from the stop body 20 against the spring force of the coupling element 34, the depth control wheel 14, which rests against the frame clamp 48 of the fastening device 44 when lifted into the transport position, is able to move away from the frame clamp 48 by a rotational movement D of the wheel carrier 16 in the direction of the limit stop 42. This movement of the depth control wheel 14 away from the frame clamp 48 prevents the lifting movement of the soil cultivation unit 10 from being limited by the depth control wheel 14 resting against the frame clamp 48 when moved into the transport position. As a result, the soil cultivation tools 12 can be raised further to maximize the lifting height A and consequently minimize the space required by the soil cultivation unit 10 in the transport position.As the depth control wheel 14 moves away from the frame clamp, a force from the wheel carrier 16 acts against the spring force of the coupling element 34, causing the stop area 28 of the wheel carrier 16 to move away from the stop body 20 in the direction of the limit stop 42 against the spring force, the limit stop 42 being used to limit the rotational movement D and thus the pivoting movement S of the depth control wheel 14 in the direction of the soil cultivation tools 12 to prevent a collision of the depth control wheel 14 with the soil cultivation tools 12. Reference sign 10 soil cultivation units 12 soil cultivation tools 14 Depth control wheel 16 bike carriers 18 Adjustment device 20 stop bodies 22 Transmission element 24 actuators 26 Safety element 28 Stop area 30a, 30b ends 32 carrier bodies 34 Coupling element 36a, 36b Ends 38 Mounting extension 40 Mounting extension 42 Limit stop 44 Fastening device 46 Actuator 48 frame clamp 50 Adjustment status indicator 52 Display bodies 54 display scale 56 chopping handles 58 grid A Excavation height B Floor D Rotational movement H1, H2 Height difference L Linear motion P pivot point R Rotational movement S swivel movement T Intervention depth

Claims

[1] Soil cultivation unit (10) for an agricultural soil cultivation implement, in particular for an agricultural hoe for mechanical weed control on an agricultural area (N), with - at least one soil cultivation tool (12) which is designed to engage in soil cultivation with an intended depth of intervention (T) in the soil (B) of the agricultural area (N), - a depth control wheel (14) which is rotatably attached to a wheel carrier (16) and is designed to guide at least one soil cultivation tool (12) with an intended working depth (T) in the soil (B) of the agricultural area (N), and - an adjustment device (18) by means of which the position and / or orientation of the depth control wheel (14) can be adjusted to specify an intended penetration depth (T), characterized by, that the adjusting device (18) comprises a movable stop body (20) which is designed to be moved translationally to adjust the position and / or alignment of the depth control wheel (14). [2] Soil cultivation unit (10) according to claim 1, characterized by , that the translational method of the stop body (20) for adjusting the position and / or orientation of the depth control wheel (14) can be brought about by means of a rotational movement (R) of a transmission element (22) of the adjustment device (18), wherein the transmission element (22) is preferably kinematically and / or kinetically connected to the stop body (20) and / or is a component of the stop body (20) for bringing about the translational method of the stop body (20). [3] Soil cultivation unit (10) according to claim 1 or 2, characterized by, that the adjusting device (18) comprises an actuating body (24) by means of which the adjusting device (18) can be operated to move the drive body (20), wherein the actuating body (24) preferably - is kinetically and / or kinematically connected to the transmission element (22) and / or is a component of the transmission element (22), and / or - can be actuated to bring about the rotational movement (R) of the transmission element (22), in particular manually by a machine operator, and / or - is designed as a crank, in particular as a hand crank, and / or - can be secured against unintentional actuation by means of a safety element (26), which is designed in particular as a safety bar or safety clamp. [4] Soil cultivation unit (10) according to any one of the preceding claims, characterized by, that the wheel carrier (16) has a stop area (28) which is designed to be in contact with the stop body (20) of the adjustment device (18) in an intended position and / or orientation of the depth control wheel (14) for specifying an intended engagement depth (T), wherein the stop area (28) is preferably arranged at the end (30a) of the wheel carrier (16) facing away from the depth control wheel (14) and / or towards the adjustment device (18). [5] Soil cultivation unit (10) according to any one of the preceding claims, characterized by , that the position and / or orientation of the depth control wheel (14) is adjustable by a pivoting movement (S) of the depth control wheel (14), wherein - the wheel carrier (16) is preferably rotatably mounted in a pivot point (P), in particular on a support body (32) of the soil cultivation unit (10), such that the depth control wheel (14) can be pivoted by a rotational movement (D) of the wheel carrier (16) about the pivot point (P), and / or - the rotational movement (D) of the wheel carrier (16) to pivot the depth control wheel (14) can be brought about by the movement of the stop body (20), in particular by generating a torque about the pivot point (P) by exerting a force of the stop body (20) on the wheel carrier (16) in the stop area (28). [6] Soil cultivation unit (10) according to any one of the preceding claims, characterized by , that the adjusting device (18) comprises a coupling element (34) via which the adjusting device (18) is kinematically and / or kinetically coupled to the wheel carrier (16), wherein the coupling element (34) is preferably - the transmission element (22) and / or the stop body (20) of the adjusting device (18) kinematically and / or kinetically couples with the wheel carrier (16), and / or - each with a first end (36a) attached to a mounting extension (38) of the transmission element (22) and / or the stop body (20) and / or with a second end (36b) attached to a mounting extension (40) of the wheel carrier (16), in particular in the immediate vicinity of the stop area (28), and / or - is designed as a spring, in particular as a coil spring and / or as a tension spring, and / or - by applying a stop force, in particular a tensile force, to the wheel carrier (16) ensures contact between the stop body (20) of the adjusting device (18) and the stop area (28) of the wheel carrier (16) with a defined contact force, and / or - is connected to the transmission element (22) and / or the stop body (20) of the adjusting device (18) in such a way that the force exerted by the transmission element (22) on the wheel carrier (16) to ensure contact of the stop body (20) with the stop area (28) adapts depending on the movement of the stop body (20), and / or - is designed and / or arranged in such a way that, when a force acting on the coupling member (34) through the wheel carrier (16) is exceeded, in particular a tensile force, the stop area (28) is spaced apart by a rotational movement (D) of the wheel carrier (16) about the pivot point (P). [7] Soil cultivation unit (10) according to any one of the preceding claims, characterized bya limit stop (42) for the wheel carrier (16), in particular for limiting the rotational movement (D) of the wheel carrier (16) about the pivot point (P) and / or the pivoting movement (S) of the depth control wheel (14), wherein the limit stop (42) preferably - is designed separately from the stop body (20) of the adjusting device (18), and / or - is arranged along a rotational path of the wheel carrier (16) spaced apart from the stop body (20) of the adjustment device (18), and / or - by spacing the stop body (20) together with the stop body (20) defines a rotation range for the wheel carrier (16) and / or a swivel range for the depth control wheel (14), and / or - is part of the carrier body (32) of the soil cultivation unit (10), and / or - is designed and / or arranged in such a way that a pivoting movement (S) of the depth control wheel (14) is limited to avoid a collision of the depth control wheel (14) with the at least one soil cultivation tool (12). [8] Soil cultivation unit (10) according to any one of the preceding claims, characterized byA fastening device (44) for attaching the soil cultivation unit (10) to a support beam of an agricultural soil cultivation implement, which is deflectable for moving the soil cultivation unit (10) into a raised transport position and into a lowered working position, in particular by means of a controllable actuator (46), wherein by enabling a spacing of the stop area (28) by a rotational movement (D) of the wheel carrier (16) about the pivot point (P) by exceeding a force acting by the wheel carrier (16) on the coupling member (34), in particular tensile force, by defining the rotation range for the wheel carrier (16) by spacing the stop body (20) and the limit stop (42), the space requirement of the soil cultivation unit (10) in the transport position of the soil cultivation unit (10) is reduced. [9] Soil cultivation unit (10) according to any one of the preceding claims, characterized by, that the adjusting device (18) comprises an adjustment status indicator (50) by means of which a current adjustment status of the adjusting device (18) can be read, in particular a current travel status of the stop body (20) and / or a current adjustment status of the position and / or orientation of the depth control wheel (14), wherein the adjustment status indicator (50) preferably comprises a display body (52) which is kinematically and / or kinetically connected to the stop body (20) and / or the transmission element (22) in such a way that the display body (52) performs a linear movement along a display scale (54) of the adjustment status indicator (50) when the stop body (52) is moved. [10] Agricultural soil cultivation implement, in particular an agricultural hoe for mechanical weed control on agricultural land, with - several soil cultivation units (10) which are arranged side by side and spaced apart from each other on a support beam of the soil cultivation implement, characterized by , that the soil cultivation units (10) are designed according to one of the preceding claims.

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