Plow module and tillage implement with at least one plow module

Abstract

The plow module (1) with plow-following stabilization means is attached to the base frame of the tillage implement and has a rotatable first cutting element formed as a concave disc-cutting plate. The plow module (1) moves over the ground in a tilling direction (110) to cut the side areas (122) of the gravel rows. The plow module (1) has a flat second cutting element (105) with a second cutting edge (106), which allows the plow module (1) to separate the bottom areas (121) of the gravel rows as it moves over the ground. The plow module (1) is formed as a pre-assembled unit in which the second cutting element formed as a fixed cutting cutter (6) follows the first cutting element (102) in the tilling direction (110). The cutting cutter (6) is bent backward with respect to the inclination angle, thereby achieving a dynamic force balance between the first cutting member (102) and the cutting cutter (6) to stabilize the following of the plow. The cutting cutter (6) is provided with a stop plate (8) that is supported on the gravel groove wall (121) to stabilize the following of the plow.

Description

[Technical Field]

[0001] The invention relates to a plow module with plow-following stabilizing means for interchangeably mounting on a base frame of a tillage implement for tilling the ground, as defined in the preamble of claim 1, and to a tillage implement equipped with at least one such plow module, as defined in claim 14. [Background technology]

[0002] When plowing with such a tillage implement, which is generally pulled by a tractor, a so-called gravel strip is cut out of the ground. The gravel strip has side regions that are cut or have been cut out by a first cutting element. Furthermore, the gravel strip has a bottom region that connects the two side regions and is separated from the ground by a second cutting element. Correspondingly, the ground adjacent to the bottom region of the gravel strip has a separation surface (the so-called gravel furrow bottom). An approximately rectangular gravel strip is cut out of the ground, with the horizontal cut surface (=gravel furrow bottom) being produced in the remaining ground by the second cutting element and the vertical cut surface (=gravel furrow wall) being produced by the first cutting element. The cutting of the gravel strip forms a gravel furrow wall in the ground, where the side regions of the gravel strip have been peeled off. The bottom region thus defines the vertically lowest surface of the gravel strip once it has been separated from the ground.

[0003] It should be pointed out that the terms "horizontal" and "vertical" as well as "up" and "down" relate to the arrangement and configuration of the tillage implement and thus of the plow module according to the invention attached to the tillage implement, in which case it is assumed that the tillage implement is supported on the ground in accordance with the regulations and is movable along the tillage direction during the tillage operation.

[0004] A related tillage implement is known from DE 10 2017 102 683 A1. A rotatable first cutting element formed as a cutting disk with a circumferentially extending first cutting edge is arranged on the base frame of the tillage implement, where the first cutting element is configured so that the tillage implement moves along the ground in a tilling direction to separate side regions of the gravel row in the ground. The tillage direction or plowing direction is defined as the direction in which the tillage implement moves across the ground. A second, flat cutting element with a second cutting edge is also attached to the base frame and is arranged in front of the first cutting element in the tilling direction. The second cutting element is configured so that the plow module moves along the ground in the tilling direction to separate bottom regions of the gravel row. When plowing with this tillage implement, the bottom region of the gravel row to be formed is first cut by the second cutting element. The subsequent first cutting element, formed as a cambered cutting disc, then cuts the side area of ​​the gravel row and drops it back into the formed gravel furrow. Such a tillage device requires significantly reduced traction forces compared to conventional tillage using multiple plow bodies and moldboards.

[0005] A disadvantage of DE 10 2017 102 683 A1 is that the different cutting elements are individually attached to the base frame, which makes it difficult to install or retrofit a conventional tillage base frame. Furthermore, the spatial alignment of the two cutting elements relative to one another is complicated, and their adjustment or displacement is often only possible within a very small range.

[0006] German Utility Model No. 20304036 describes a cultivating device for hop cultivation. The device is intended to be pivotally mounted on a tractor and has a base frame to which at least two implements are attached. The first implement is a furrow-removing implement for removing the furrows to expose the vines of the hop rhizomes within the furrows, while the second implement is in the form of a cutting implement for severing the exposed vines of the hop rhizomes. The base frame is provided with extension arms to which each implement is attached via its own connecting rod. The two implements are arranged in succession, making it possible to cultivate the furrows to expose the vines and subsequently sever the vines in a single operation. Plowing is not possible with this known cultivating device for hop cultivation.

[0007] The plow module described in the applicant's unpublished German patent application No. 1020192042562 operates on the principle that the cutting elements cut the underside of the gravel furrow wall from the gravel strip to be separated and then inverted by the concave disk. Overall, this already works very well. However, it has been found that with this known plow, the plow modules do not follow balanced directions. In actual use, plows, which usually have multiple plow modules, can also deflect laterally during plowing due to uneven soil flow. The soil compaction and soil composition often vary greatly, which causes the cutting width and cutting depth of the leading first concave disk to vary significantly. This leads to a situation where the lateral force in one direction is greater than the lateral force in the opposite direction, causing the plow to lose its guiding means. This means that the plow tends to deflect laterally from the gravel furrow, which serves as a neutral drag line. In this case, these forces acting on the plow and plow module place a high load on the bearings of the concave disc.

[0008] Similarly, the use of known moldboard plows does improve tracking control, since the actual plow body is applied to the gravel furrow wall with a relatively large tillage implement, thereby stabilizing the tracking, i.e., the running of the plow on the neutral drag line, but this must be achieved at the expense of much higher tractive effort when pulling the plow through the ground. Summary of the Invention [Problem to be solved by the invention]

[0009] The object of the present invention is to convert a known construction type of plow into a modular construction type, which makes it possible to balance the lateral forces and keep the plow on a straight track, i.e., to follow it in a straight line, thereby stabilizing the overall tracking of the plow. [Means for solving the problem]

[0010] This problem is solved by a plough module with the features of claim 1 and a tillage implement with the features of claim 14. Advantageous refinements are defined in the respective dependent claims.

[0011] This problem is solved by a plow module as a pre-assembled unit and a tillage implement equipped with such a plow module, in which the second cutting element is configured as a fixed cutting cutter and is bent backward, i.e., in the direction opposite to the tillage direction, so that a dynamic force balance can be achieved between the first cutting element and the cutting cutter in order to stabilize the tillage direction. The plow module generally has a first support structure on which the first cutting element is arranged and a second support structure on which the second cutting element is arranged. The second support structure is connected to the first support structure, and the first support structure has removable attachment means for attachment to a base frame of the tillage implement, the attachment means carrying at least one plow module. In the plow module, the second cutting member is arranged behind the first cutting member in the tilling direction, and the tillage device according to the present invention additionally has a support plate next to at least one, preferably two, plow modules, which is supported on the gravel furrow wall, thereby supporting the entire tillage device and each plow module and stabilizing their trailing line.

[0012] According to a first aspect of the present invention, a plow module for a tillage implement for tilling ground is described. The plow module has a first support structure on which a rotatable cutting member, e.g., a cambered disc, is arranged. A second cutting member, e.g., an angularly arranged cutting cutter, is attached to the second support structure, which itself is rigidly connected to the first support structure. The rotatable first cutting member has a circumferentially extending first cutting edge configured such that, when the tillage implement with the support structure moves over the ground in its tilling direction, i.e., in the direction of plowing, a first cutting region of the first cutting edge separates a side region of the gravel row in the ground from the gravel furrow wall. The first and second support structures are rigidly connected to each other and are both arranged on a substructure of the tillage implement. The second cutting element has a second cutting edge, the second cutting element being arranged on a second support structure and configured such that when the plough module moves over the ground in the tilling direction, a second cutting area of ​​the second cutting edge can separate the bottom area of ​​the gravel strip in the ground, in particular along a separation plane between the gravel strip and the plough bottom. The second cutting element is arranged in the tilling direction relative to the first cutting element such that the second cutting area is located behind the first cutting area in the tilling direction.

[0013] Preferably, the cutting elements of a plough module are mutually adjustable in terms of their position, preferably pivotable, which is a clear advantage: for example, plough modules can be used in which a first cutting element for lateral separation of gravel can be arranged in front of a second cutting element for bottom separation of gravel.

[0014] Preferably, the tillage implement has multiple plow modules, for example, 3 to 6 modules per plow side, i.e., a total of 6 to 16 modules per base frame. In contrast to known tillage implements, the known tillage implement has a first cutting element, which cuts the side of the gravel, arranged behind a second cutting element, which cuts the gravel or the bottom of the gravel furrow into which the gravel is cut. This known arrangement is obviously chosen because the first cutting element, for example, in cooperation with a guide plate or, in one configuration, as a concave disk, is responsible for turning over the excavated gravel. For this, the bottom of the gravel furrow, i.e., the underside of the gravel, must already be cut. Therefore, in known implements, the second cutting element is arranged ahead of the first cutting element with respect to its working blade. This arrangement allows the first cutting element to turn over the gravel immediately after cutting the side of the gravel, since the bottom of the gravel furrow has already been cut. To ensure that the first cutting element can cut the side or to prepare and start turning the gravel in a curved configuration, the drive or support or holder of the first cutting element must of course be located behind the first cutting element, but this also means that the second cutting element and the first cutting element must each have separate supports that attach them to the frame, which makes the mutual adjustment of both cutting elements much more difficult.

[0015] In contrast, in the present invention, the first cutting element, which cuts the side of the gravel, is arranged in front of the second cutting element, which cuts the gravel or the bottom of the gravel furrow. This is usually not taken into account, because the first cutting element, which cuts the side of the gravel, is configured as a concave disk in the tillage implement, and therefore cannot perform the turning function, even though it is primarily intended for turning the gravel, because the bottom of the gravel furrow has not yet been cut. This is precisely the advantage of the module according to the present invention: only two cutting elements are required, without the need for guide plates or moldboards. Another advantage of the present invention is that, due to the fact that the first cutting element has a drive or support or support structure on its rear side, when it is arranged in front of the second cutting element, which also has a support structure, the support structures of both the first and second cutting elements can be connected to each other, resulting in a single module that can be attached to the support frame of the tillage implement using a single suspension. A decisive advantage is that conventional tillage implements with several plow bodies can be converted relatively easily by removing the plow bodies and installing a corresponding module. Of course, conventional base frames, also known as plow booms, can also be fitted with several plow modules according to the invention right in the factory.

[0016] Surprisingly, it has been found that in tillage implements with a leading cutting element in the form of a concave disc, the lateral cutting of the gravel furrow is possible without subsequent turning, since the gravel furrow bottom has not yet been cut. The cutting of the gravel furrow bottom is only carried out by the following second cutting element. If several such modules are arranged in succession in one tillage implement, it has been found that in the second module following the first module in the tillage direction, the first cutting element not only cuts the lateral side of the existing gravel row, but also has already cut the gravel furrow bottom there. This allows the second module to immediately perform its desired function, i.e., the first cutting element in the form of a concave disc can cut the lateral side of the gravel row and turn it over at the same time.

[0017] The structure is advantageous in that the holder or support structure for the first cutting element faces rearward toward the support structure for the second cutting element, allowing both cutting elements to be easily attached and connected to form a single module. If a tillage implement has, for example, only one plow module, the first pull during tilling of a field only involves the lateral separation of the not-yet-separated gravel strip, resulting in only a partial turnover. However, during the second pull, the first cutting element immediately and completely turns over the gravel strip, which has now been detached from the lateral side, since the second cutting element has already detached the gravel furrow bottom and thus the underside of the gravel strip in that area. This offers significant advantages over conventional tillage implements. Conventional tillage implements with plow bodies can easily be replaced or retrofitted with the plow module according to the present invention. Furthermore, the modular design also makes it easy to quickly replace a different plow module in the tillage implement in response to a malfunction or changes in the ground structure.

[0018] During actual use, the plow may "deviate" laterally due to uneven soil flow, i.e., different soil compactions and soil compositions, meaning that it does not follow an ideal trailing line. This causes significant variations in the cutting width and cutting depth, especially of the first concave disc, so that the lateral forces are no longer uniform but act differently on both sides. This causes the plow to lose its guide and deflect in the direction of the greater lateral force. This means that the plow turns to a certain extent sideways and deviates from the gravel furrow it has just pulled, i.e., its neutral pulling line. This places a higher load on the bearings of the concave disc. According to the present invention, the fixed cutting cutter forming the second cutting element is bent backward, which achieves a dynamic force balance between the first cutting element and the cutting cutter, stabilizing the plowing direction. The term "fixed" refers to the difference between the cutting cutter and the rotating discs also known in the prior art for cutting the gravel furrow bottom. The angle at which the cutting cutter is tilted backward is adjustable, and this angle is fixed only after the cutting cutter has been adjusted to a predetermined angle corresponding to the ground.

[0019] A contact plate is provided to cooperate with the cutting cutter, and extends transversely on the cutting cutter relative to its longitudinal direction. This contact plate is additionally provided and supported on the gravel furrow wall. The contact plate cooperates with the cutting cutter to support and stabilize the plowing direction, thereby forming a cutting cutter-contact plate-guide unit. After the gravel furrow wall, i.e., the side area of ​​the gravel strip, is separated, the cutter cuts the gravel furrow bottom. The contact plate is supported on the side wall, i.e., the gravel furrow wall, thereby providing lateral guidance. The cutting cutter-contact plate-guide unit, also referred to as the contact plate-lower cutting cutter unit, functions, in a manner, as a grinding shoe with a supporting function. This combination of the cutting cutter and the contact plate seated thereon provides a tracking stabilization for the plowing implement, thereby preventing the plow from deflecting laterally. For this purpose, the tillage implement requires at least one such contact plate-lower cutting cutter unit, preferably on the first plow module in the tillage direction. Preferably, the last plow module also has such a unit. In this case, providing such units at the beginning and end of a tillage implement having multiple plow modules is particularly advantageous for stabilizing the plow's tracking. In any case, it is not essential that such units be installed on all modules. Of course, it is conceivable and possible for all modules to be identically configured for uniformity and standardization purposes. This has an important advantage when plow modules need to be replaced, since in this case, different inventory items are not required for plow modules to be repaired or replaced. Furthermore, if such units are installed on all plow modules, the required tractive force can be significantly reduced.

[0020] The contact plate attached to the cutting cutter can be designed to be adjustable in height and angle relative to the plow trailing line and inclination angle relative to the cutting cutter surface in accordance with the soil properties at hand, and this adjustment can be performed electrically, mechanically or hydraulically.

[0021] The plow module according to the invention is particularly advantageous if, in addition to adjusting the contact plate, both the first and second cutting members are adjustable in terms of their positions relative to one another. This allows for adjustment to the ground to be plowed as well as individual or joint adjustment of the two cutting members relative to one another. In this case, the second cutting member can be pivoted on the support structure to which the first cutting member is attached, so that when cutting into the ground, the second cutting member can be tilted slightly downward, preventing it from flying out to cut the gravel furrow bottom during plowing, while at the same time keeping the first cutting member in the ground. The first cutting member can be pivoted and displaced in multiple directions, i.e., has multiple degrees of freedom to achieve a correspondingly optimal plowing result in the interaction of the two cutting members.

[0022] Providing several modules on one tillage implement also has the advantage that the device according to the invention allows a larger width to be tilled with one pull. The ability to swivel the cutting elements out of the way is also advantageous when plowing the edge of the field to be ploughed and the width of the last pull is so large that there is otherwise a risk that the plough module arranged laterally with the widest width will already be cutting through part of the ground, which may be in an adjacent field, for example. To avoid this risk, one or more corresponding cutting elements can be swiveled out of the way.

[0023] The plow module according to the present invention is connected to a traction machine, such as a tractor, via the foundation structure of the tillage implement, so that the tractor drags the cutting elements through the soil in the plowing direction. The foundation structure may be part of a support or a mortar. By using multiple plow modules, each consisting of two cutting elements arranged on an integrated support structure, i.e., a first cutting element for cutting and turning the side of the gravel row and a second cutting element for cutting the gravel furrow bottom, the mortar can be completely omitted. The support structure comprises metal bars and / or fiber composite elements. Furthermore, mounting elements, which will be described in more detail below, can be adjustably attached to the support structure.

[0024] The plow boom or support frame formed by the first and second support structures thus provides a rigid but adjustable mounting structure for the cutting elements of the plow module and for additional components, such as the stop plates of the second cutting elements and joints or adjustment elements. In other words, the cutting elements are fixed in position relative to the first or second support structure, respectively, such that relative movement between them is not possible during plowing. When the second cutting element is forced into the ground by cutting the rubble during plowing, the first cutting element is simultaneously forced into the ground by a thrust force. Preferably, however, the cutting elements and stop plates can also be adjusted during plowing, for example electrically or hydraulically.

[0025] In one exemplary embodiment, the first cutting element and / or the second cutting element are pivotally mounted, for example by a joint, on the respective support structure, so that the angle between the rotation axis and the extension direction of the second cutting edge can be adjusted and fixed in a desired position. In another advantageous embodiment of the invention, the second support structure itself is pivotally connected to the first support structure via a joint, so that the inclination angle of the second cutting element with respect to the plowing direction can be adjusted. In this case, the inclination angle is generally such that the leading cutting edge is directed slightly downward into the ground.

[0026] The second cutting element formed as a cutting cutter and the stop plate can be pivoted together with the inclination angle of the cutting cutter via a common pivot shaft, thereby enabling the undercutting of the gravel row to be carried out so that the plow remains at the desired depth and the stop plate can be adjustably adapted to various soil qualities by providing a support effect against the gravel furrow wall in conjunction with the stabilization of the plow.In addition, perforated plates are provided in each module of the tillage implement, the height of which can also be adjusted together with the cutting cutter.

[0027] In one further exemplary embodiment, the first cutting member and / or the second cutting member are pivotably and / or translationally arranged on the respective support structure, so that the inclination angle and position can be adjusted relative to one another, i.e., depending on the soil properties and the desired tillage depth, the position and / or angle of the cutting members relative to one another as well as the inclination angle of the second cutting member relative to the tillage direction can be adjusted.

[0028] For example, devices such as the above-mentioned joints are used to adjust the cutting element angle (the inclination angle of the cutting cutter), allowing for adjustment of the cutting element inclination angle (the vertical inclination of the concave disc relative to the gravel furrow wall in the ground) and the cutting element direction angle (relative to the plowing direction, i.e., the direction of towing vehicle travel). The cutting line of the cutting element between the first cutting edge and the gravel furrow wall can be adjusted in height via an adjustable support. Correspondingly, the vertical and / or horizontal spacing between the first and second cutting elements can be variably adjusted. In other words, in one exemplary embodiment, the first and second cutting elements can be arranged relative to one another such that the cutting area of ​​the first cutting edge of the first cutting element is vertically spaced from the second cutting edge of the second cutting element. By adjusting the horizontal direction, the cutting width or plowing width of one tow can be adjusted.

[0029] In the present invention, the first cutting area is preferably formed in a first cutting plane and the second cutting area is formed in a second cutting plane, the first and second cutting planes forming an angle with each other of 30° to 135°, in particular 45° to 110°. The desired angle can be adjusted by the two cutting elements being pivotally supported on the respective support structures. Of course, a predetermined fixed orientation of the two cutting planes also falls within the scope of the present invention.

[0030] In this case, the first cutting edge extends in a first cutting plane, while the second cutting edge extends in a second cutting plane. In this case, the first cutting member and the second cutting member are mounted to the support structure relative to each other so that the first cutting plane and the second cutting plane form an angle (opening angle) greater or less than 90° relative to each other. In other words, in one further exemplary embodiment, the first cutting member may be arranged such that an angle of approximately 0° to approximately ±30° exists between the rotation axis of the first cutting member and the extension direction of the second cutting edge. In particular, the perpendicular to the first cutting plane has a component parallel to the horizontal when the tillage implement is supported on the ground in accordance with the specifications. The rotation axis of the cutting member is particularly parallel to the perpendicular to the first cutting plane. Furthermore, the perpendicular to the second cutting plane has another component parallel to the vertical when the tillage implement is supported on the ground in accordance with the specifications. The angle between each perpendicular line can be selected, for example, between 45° and 130°, to achieve the desired gravel groove formation in the ground.

[0031] When the first and second cutting planes are at an angle of approximately 90° to each other, the second cutting element presses the underside of the cut gravel toward the first cutting element. This allows for advantageous plowing of the gravel between the first and second cutting elements during movement in the plowing direction. The cooperation of the rotating first cutting element and the fixed, angled second cutting element provides a favorable plowing result or "crushing" (clod breaking). Furthermore, the strong lateral pulling force of the first cutting element, which negatively impacts the towing vehicle's drag line, is substantially counteracted by the counteraction of the second cutting element. This means that a balance is achieved between the respective lateral forces. This allows the towing machine to remain on track without significant counteraction, i.e., stabilizing its tracking in the plowing direction while simultaneously reducing the tractive force.

[0032] The first cutting member is rotatably or pivotally mounted on the first support structure. Accordingly, the first cutting member has a first rotation axis about which the first cutting member rotates. The first cutting member is preferably formed as a cambered cutting plate and has a circular periphery. A circumferentially extending first cutting edge is formed along the periphery. The first cutting edge separates the side regions of the gravel strip from the gravel groove wall in the ground while simultaneously directing the gravel strip to the side. The circumferentially extending first cutting edge has a first cutting region. The first cutting region is the circumferential portion of the first cutting edge that preferably first contacts and cuts the ground in the plowing direction. The first cutting member may have a diameter of approximately 500 mm to approximately 800 mm. Furthermore, the first cutting member may have a row of teeth and may be centrally supported, preferably by a carriage, so that its position can be adjusted relative to the first support structure and the second cutting member.

[0033] It is particularly advantageous if the first cutting element, rotatable about its axis of rotation, is curved or has a conical or frusto-conical shape. This ensures that the separated gravel strips are twisted and dropped into the adjacent gravel furrow formed by the previous plow module's passage. In this case, the axis of rotation of the first cutting element is adjusted to a predetermined angle relative to the plowing direction, so that the edge of the leading cutting element forms a predetermined angle relative to the plowing direction, and the cutting element extends substantially obliquely relative to the plowing direction and thus to the gravel strip to be cut by the cutting element. The concave disc is inclined relative to the traction direction and the normal to the gravel furrow, respectively, i.e., the concave disc is inclined relative to both the gravel furrow and the traction direction. The inclination of the traction direction, also known as the cutting angle, is preferably between 10° and 30°. The inclination of the gravel furrow relative to the normal is preferably between 10° and 35°.

[0034] The first cutting member rotates automatically as the tillage implement moves along the ground, with frictional forces causing the first cutting member to move, and the first cutting member is preferably dimensioned such that only the lower half of the first cutting member, located below the first rotation axis, penetrates the ground during tillage, whereby frictional forces with the ground can induce rotation.

[0035] The rotation of the curved or plate-shaped first cutting member also causes the separated gravel to be lifted and simultaneously guided to the side. The separated gravel is in frictional contact with the first cutting surface of the first cutting member. The first cutting surface is the surface of the first cutting member formed on the inside of the first cutting edge. Furthermore, the first cutting surface is the surface facing the separated gravel. The first cutting surface may be uniformly formed without irregularities. Furthermore, the first cutting surface (i.e., the outer peripheral surface of the first cutting member) may be conical or frustoconical.

[0036] According to the invention, the second cutting element is configured as a cutting cutter and is supported so that its inclination angle can be adjusted, with the second cutting edge being defined by a fixed edge of the second cutting element. The displaceable cutting cutter of the second cutting element has a cutting edge extending transversely to the tilling direction. This cutting element, whose blade is preferably provided with a tooth row, is preferably angled slightly downward at a predefined angle to the tilling direction, i.e., at an angle of more than 90° to the tilling direction. The second cutting edge separates the bottom region of the gravel row from the gravel furrow bottom of the ground, cutting it below and, if necessary, simultaneously lifting it. The second cutting area is formed by the cutting cutter as the second cutting edge, which comes into contact with the ground second in the tilling direction and cuts it.

[0037] A first cutting element, e.g., a curved disc, separates the gravel strips in a first vertical layer plane, e.g., at a tillage depth of approximately 15 to 35 cm from the ground surface, and guides the gravel strips into the previously formed gravel furrow.

[0038] In a second horizontal layer plane, located at a tillage depth of approximately 15 to 35 cm from the ground surface, the gravel rows are cut horizontally, i.e., from the bottom of the gravel furrow, by a second cutting element, i.e., a cutting cutter, and the dynamic force balance between the two cutting elements acts to stabilize the plough's tracking.

[0039] The distance between the two cutting planes (top: first vertical rotating cutting element; bottom: second horizontal cutting element formed as a cutting cutter) can be adapted by means of an adjustment means of the rotating cutting element.

[0040] The effective plow body, consisting of a first cambered cutting element and a second flat cutting element in the form of a cutting cutter, corresponds approximately to an inclined serpentine plane that is pulled through the ground. The separated gravel is pushed up and to the side along the inner surface of the first cambered cutting element. This process involves compression of the upper half of the gravel and extension of the lower half of the gravel. As a result, compressive, tensile and torsional stresses are generated in the gravel, which, in addition to the gravity-induced falling movement of the gravel, cause the earth to split.

[0041] According to the present invention, by positioning the second cutting element behind the first cutting element in the plowing direction, frictional forces that would otherwise require excessively high traction force of the plowing implement can be reduced. When the gravel row is cut on its side by the first cutting element, the second cutting element has already cut its underside and separated it from the gravel furrow bottom, so that the gravel row is already lifted and turned over by the first cutting element. The second cutting area is located, for example, 1 cm to 50 cm, particularly 15 cm to 25 cm, behind the first cutting area in the plowing direction. The cutting cutter of the substantially horizontal second cutting element comes into contact with the ground second and, so to speak, follows or trails toward the substantially vertically arranged first cutting disk or cutting element. This positioning of the second cutting element horizontally "undercuts" the gravel furrow wall or the gravel row to be plowed, thereby significantly facilitating its removal / removal from the gravel furrow. The vertically arranged, curved first cutting element vertically separates the gravel previously cut horizontally by the subsequent second cutting element during the next towing operation, and reverses it with the rotational movement of the concave disk, while simultaneously dropping the gravel sideways, preferably into a gravel groove.

[0042] The tillage device thus enables a smooth tilling action with stabilized tracking. The co-rotating first cutting element significantly reduces the coefficient of friction compared to conventional rigid plough bodies. This concept provides a smooth, fuel-saving plough, which simultaneously creates a consistent gravel furrow with an almost complete seedbed for sowing, further reducing traction forces due to the dynamic balance of lateral forces.

[0043] The second cutting element can be optimally adjusted in terms of its inclination angle to changes in the soil properties, preferably even during plowing, by means of an electrical, mechanical or hydraulic adjustment device.

[0044] In another exemplary embodiment, the first or second cutting edge of the first or second cutting element is also cambered and toothed. A cambered design means that the first or second cutting edge is curved. A toothed design means that the cutting edge has recesses or protuberances (toothed). This also improves the cutting action of the first or second cutting element when cutting gravel. In particular, by forming the first cutting element in a spherical crown shape, the gravel sliding along the spherical crown can be inverted, thereby eliminating the need for a moldboard or guide plate. The peripheral recessed design of the first cutting edge of the first cutting element and / or the second cutting edge of the second cutting element results in a circular saw blade-type design that penetrates the ground particularly easily. The concave disc-cutting plate can rotate by engaging with the ground.

[0045] The described tillage device allows for traction and fuel savings due to its ease of towing. Furthermore, the tillage device is versatile and functions in almost all ground conditions. Furthermore, the rotating movement of the cutting plate continuously breaks up gravel. This achieves the desired soil clod breaking (clod shredding). This clod shredding action reduces post-processing steps, which saves several work steps before tilling the seedbed. Furthermore, the ground is advantageously mixed. Furthermore, conventional standard components or standard additional tools, such as fertilizer feeders or disc coulters, are no longer necessary. Due to the rotating first cutting element, less wear occurs, thereby reducing replacement part costs. By gently tilling the ground in this way, humus-damaging metal wear of the cutting elements is significantly avoided or reduced compared to conventional moldboard-equipped tillage devices.

[0046] In another exemplary embodiment, the tillage device has at least one other plow module having a rotatable first cutting member with another first cutting edge also extending circumferentially, and when the support structure moves along the tilling direction over the ground, the other plow module can separate another side region of another gravel row from the ground, and the other first cutting member is rotatable so that the other gravel row can be lifted by the other first cutting member.

[0047] The above-described embodiment demonstrates that multiple plough modules can be arranged next to each other in the plowing direction, i.e., spaced apart (in the horizontal plane) next to each other along a direction perpendicular to the plowing direction, so that multiple gravel rows arranged next to each other in the plowing direction can be cut, lifted and possibly turned over from the ground.

[0048] When a number or a plurality of corresponding plow modules and thus a corresponding number of cutting elements are arranged one after the other in the tilling direction, due to the lateral offset of the individual plow modules relative to one another transverse to the tilling direction, a wider area can be plowed in one pull than if only a single plow module were used in one pull. It is also advantageous for the function of the tillage implement if the individual cutting elements are free from interference and thus can be pivoted from their adjusted positions. This makes it possible, for example, to change a trailing cutting element into a leading cutting element. This can be significant or advantageous in terms of optimal matching in the combination of several plow modules of a tillage implement, advantageously with respect to various parameters, such as the nature of the soil.

[0049] The adjustable angle of the cutting cutter as the second cutting element allows for a dynamic balance of the lateral forces between the concave disc and the cutting cutter, thereby achieving plow tracking stabilization. It is self-evident that a tillage implement consisting of multiple plow modules typically requires a higher traction force the more plow modules integrated into one support. Without stabilization of the tillage direction, the lateral forces that tend to cause the tillage implement to deviate laterally from the linear traction line would be stronger than if only a single plow module were present. The provision of a stop plate makes it even more important to provide a means for stabilizing plow tracking by correspondingly adjusting or displacing the cutting cutter, which additionally serves as a support to stabilize the tillage direction. It has been found that the additional stop plate, in combination with the angle adjustment of the cutting cutter, achieves a stabilization of the tillage by achieving a dynamic balance of the lateral forces of the first cutting element in the form of a concave disk and the second cutting element in the form of a cutting cutter when the tillage implement has several plow modules and the first and last plow modules in the traction direction are equipped with such stop plate elements and angle-adjustable cutting cutters. This achieves a compromise between low traction forces and forces that cause the tillage implement to deviate laterally from the ideal traction line. Of course, it is permissible to provide stop plates and displaceable cutting cutters on all plow modules, even if this requires higher construction costs.

[0050] The tillage device according to the invention allows, for example, the upper, rotatable, cambered first cutting element itself to evenly turn over, for example, up to 15 centimeters of ground gravel without damage and without the need for guide plates or moldboards, although firstly, an additional stop plate and an adjustable tilt angle of the cutting cutter ensure stabilization of the tillage direction.

[0051] In one exemplary embodiment, the first cutting element and the second cutting element are interchangeably arranged on the respective support structures (e.g., via a screw fastening). In this case, the first support structure is configured so that it can be removably attached to the foundation frame of the tillage implement, preferably via a screw fastening. Shear pins, rubber seals, or spring elements may also be provided for block fixing. The mounting elements, such as holes or pins, provided for this purpose are preferably procured and arranged to fit commercially available foundation frames for tillage implements. Thus, the plow module can be easily retrofitted to the foundation structure of the tillage implement, for example, in place of the plow body.

[0052] Due to the rotation of the first cutting element, the separated gravel rows are easily lifted, turned over and dumped into the gravel furrow. As the tillage implement moves along the tillage direction, the gravel rows are turned over in the tillage direction.

[0053] Due to the lifting of the gravel by the rotating first cutting element, the gravel is dropped in an energy-efficient manner behind this cutting element in the plowing direction.

[0054] In the plow module according to the present invention, the second cutting element is configured as a fixed cutting cutter. In this case, the cutting cutter is configured as a flat, rectangular, straight or curved knife, which is attached to one end region of the second support structure. The attachment is preferably performed by a screw fastening, which allows for easy replacement of the second cutting element in case of wear. In its working position, the knife blade faces the plowing direction and is generally oriented transversely to this direction.

[0055] In one advantageous variant of this configuration, the cutting cutter of the second cutting element is L-shaped. In this case, the first bar of the cutting cutter is oriented horizontally in the working position of the plow module, while the second bar is oriented substantially vertically. The first bar thus cuts the bottom region of the gravel row to be formed. The vertical second bar, which is positioned in front of the first cutting element in the working position of the plow module, moves in substantially the same plane as the leading edge of the first cutting element, facilitating its penetration into the ground. For reasons of mechanical robustness, it is advantageous for the cutting cutter to be formed in one piece. The cutting cutter generally has the form of a flat knife with a sharp blade on its front side. The inclination angle of the knife relative to the plowing direction is adjustable, which ensures that the desired penetration depth of the plow element into the ground is achieved and maintained. This, combined with a support plate that supports its force against the gravel furrow wall, provides tracking stabilization of the plow.

[0056] The present invention also includes a tillage implement according to claim 14, in which at least one plow module according to the present invention is arranged on a base frame of the tillage implement, preferably 6 to 16 such plow modules. In this case, the plow module is firmly connected to the base frame, preferably via a screw connection, via the first support structure. It is clear that the base frame and the first support structure must be formed with suitable mounting elements, such as holes or threaded pins. Alternatively, adapter elements may be provided to allow the plow modules to be adapted and mounted on various base frames of the tillage implement. This means that each plow module can be easily attached to the base frame or easily removed, for example for maintenance.

[0057] In order to further explain and better understand the invention, several embodiments will now be described in more detail with reference to the accompanying drawings, in which: FIG. [Brief explanation of the drawings]

[0058] [Figure 1] FIG. 1 shows a plow module with a concave disc and cutting cutters. [Figure 2] 1 is a schematic diagram illustrating a tillage device according to one exemplary embodiment of the present invention. [Figure 3] In the drawing showing two plow modules arranged in series according to the invention, a concave disc is shown as the first cutting member and a shear cutter is shown as the second cutting member. [Figure 4] 4 is a partial view of the tillage implement according to the invention with abutment plates, seen from the rear of the view shown in FIG. 3; FIG. [Figure 5] 1 a), b) and c) are three partial views respectively showing a plow module according to the invention. DETAILED DESCRIPTION OF THE INVENTION

[0059] The same or similar components in the different figures are provided with the same reference numerals. The drawings in each figure are largely schematic and are illustrative only.

[0060] FIG. 1 shows a plow module 1 for plowing a ground surface 120, in which a first cutting element 102 in the form of a spherically-shaped concave disc is arranged in front of a second cutting element 105 in the form of a cutting blade 6 in the plowing direction 110. The first cutting element 102 is provided for cutting the side of a gravel row (not shown), while the second cutting element 105, arranged behind the first cutting element 102, is formed as a cutting blade 6 for cutting the gravel furrow bottom. The two cutting elements 102, 6 / 105 are assembled as a plow module via support structures 4, 5. The support structures 4, 5 may be attached to a base frame (not shown), in which case the second cutting element 105 is pivotally connected to the first cutting element 102 via its support structure 4.

[0061] As shown in FIG. 1 , a rotatable first cutting member 102 having a circumferentially extending, cambered first cutting edge 103 is disposed on a first support structure 4 and is configured to cut a side region 122 of a gravel row (not shown) in the ground surface 120 with a first cutting region of the first cutting edge 103 as the support structure 4 moves over the ground surface 120 in a tilling direction 110, as shown in FIG. 1 . The tilling direction 110 is defined as the direction in which the tillage implement 3 moves across the ground surface 120. A second cutting member 105 having a second cutting edge 106 is disposed on a second support structure 5, which is releasably coupled to the first support structure 4 and is pivotable about an inclination angle relative to the first support structure 4. The second cutting element 105 is configured such that, when the support structure 5 moves in the tilling direction 110 over the ground surface 120, a second cutting area of ​​the second cutting edge 106 is able to cut off a bottom area of ​​the gravel row in the ground surface 120. The second cutting element 105 is arranged in the tilling direction 110 relative to the first cutting element 102 such that the second cutting area is located behind the first cutting area in the tilling direction 110. In other words, the second cutting area is arranged at a distance x from the first cutting area.

[0062] When plowing, the base frame 2 of the plow module 1, which includes the first and second support structures 4 and 5, is pressed in the direction of the separation surface 121 of the ground 120 or the bottom of the gravel furrow, so that the first cutting element 102 is also pressed in the direction of the separation surface 121, thereby keeping the first cutting element 102 at the desired ground depth during plowing.

[0063] 2 shows a schematic diagram of the main functional components of a tillage implement according to one exemplary embodiment of the invention, illustrating the correct spatial arrangement of the first and second cutting elements 102 and 105 as well as the formation and turning of the gravel row. Other components of the associated tillage implement 3 are not shown for the sake of clarity.

[0064] The tillage implement 3 shown in FIG. 2 has a basic frame or plow boom 2, from which extend correspondingly mounted plow modules 1 on both sides. Each plow module 1 has a first cutting element 102, which in this case is formed as a concave disk, a second cutting element 105, which is formed as a cutting blade 6 and is arranged corresponding to the first cutting element 102, and a contact plate 8, which is formed as a grinding shoe and is additionally attached to the second cutting element 105. In the drawing of FIG. 2, the plow module 1 with the contact plate 8 is shown from its rear side, which means that the cutting blade 6 (not shown) extends from behind this contact plate 8 in FIG. 2. A first support structure 4 is shown, which, via a joint 7, allows the cutting blade 6, together with the contact plate 8, which rests, as it were, on the upwardly facing plane of the cutting blade 6, to be tilted, in order to adjust the inclination angle of the cutting blade 6 for various tillage and soil conditions. Each module of the tillage implement 3 thus comprises a first cutting element 102 formed as a concave disc and a cutting cutter 6 with a stop plate 8 connected indirectly via a first support structure 4 to the base frame 2, also known as the plow boom. The stop plate 8 serves to dynamically compensate for lateral forces and is supported on the gravel furrow walls 122 (not shown) that define the lateral areas of the gravel furrow. This allows for tracking stabilization of the tillage implement 3, which is based on the fact that the concave disc 102 generates lateral forces when cutting the ground surface 120 and the subsequent turning over of the gravel row, which is achieved by the concave disc. Due to these lateral forces, which would exist without the stop plate 8, the tillage implement 3 would tend to deviate from its linear tracking line, in which case tracking stabilization would not be considered to be performed.

[0065] 3 shows, slightly enlarged compared to FIG. 2, two successively arranged plough modules according to the invention, in which the first cutting element 102 is configured as a curved concave disk with a first cutting edge 103, the recesses of which are formed in a manner that resembles a tooth row. The convex underside of the concave disk 102 indicates a first support structure 4, the lower end of which faces the cutting blade 6. The inclination angle of the cutting blade 6 can be adjusted so that a force is applied in the direction of the ground surface 121 or the gravel furrow bottom (not shown), thereby keeping the entire plough module 1 and thus the tillage implement 3 at the desired tillage depth.

[0066] As shown in Figure 1, the support structures 4 and 5 for the two cutting members 102 and 105 are configured to rigidly connect at least the first cutting member 102 and the second cutting member 105 together to the base frame 2 of the tillage implement 3. The first support structure 4 can be attached to a traction machine, such as a tractor, via the base frame 2 of the tillage implement 3, so that the cutting members 102, 105 can be driven correspondingly in the tillage direction 110. The plow module 1 has, for example, first and second support structures 4, 5, which can be configured stationary or pivotable via a joint.

[0067] The first and second support structures 4 and 5 thus form a rigid mounting structure for the cutting members 102 and 105. The cutting members 102 and 105 are fixed in position on the support structures 4 and 5 such that relative movement between the respective positions of the cutting members 102 and 105 is not possible during plowing. Thus, when the second cutting member 105 is pressed towards the ground 120 in accordance with the present invention to cut a rubble row, the first cutting member 102 is simultaneously pressed into the ground 120, since the support structures 4 and 5 are rigidly connected to each other.

[0068] The first cutting element 102 is rotatably mounted on the respective support structure 4 or 5, and the second cutting element 105 is pivotably mounted with respect to its inclination angle. Accordingly, the first cutting element 102 has a rotation axis around which it rotates. The second cutting element 105 forms a pivot axis via the joint 7, around which the second cutting element 105 can pivot with its inclination angle. The first cutting element 102 is here exemplarily configured as a spherical-crown cutting plate and has a circular periphery. A correspondingly circumferentially extending first cutting edge 103 with a recess 10 is formed along the periphery. The first cutting edge 103 separates a side region 122 (see FIG. 1 ) of the gravel ridge from a gravel groove wall 122 in the ground surface 120. The circumferentially extending first cutting edge 103 has a cutting area, which is the circumferential portion of the first cutting edge 103 that first contacts and cuts the ground surface 120 in the plowing direction 110. The cutting cutter 6 as the second cutting element 105 separates the bottom region 121 of the gravel row from the ground surface 120. The second cutting area of ​​the second cutting edge 106 is referred to as the circumferential portion of the second cutting element 105 that second contacts or follows the first cutting element 102 in cutting the ground surface 120 in the plowing direction 110. The double arrow 12 in FIG. 5a indicates that the second cutting element 105 is pivotably supported on a second support structure 5 (not shown). The pivoting allows the inclination angle of the cutting cutter 6 to be adjusted relative to the plowing direction 110 and thus the penetration depth of the plow module 1 into the ground surface 120.

[0069] A rotatable disc coulter (not shown) may be arranged in front of or coupled to the plow module 1, which pre-cuts or opens the ground 120 with the cutting cutter 6 and the first cutting member 102. This reduces the traction force required for plowing, as well as the wear on the cutting cutter 6 and the subsequent first cutting member 102. The cutting cutter 6 is double- or triple-blade cutting both horizontally and vertically and cooperates with a stop plate 8 for stabilizing tracking.

[0070] The first cutting element 102 rotates when the tillage implement 3 moves along the ground 120. In this case, frictional forces, for example, cause the cutting element 102 to move. In this case, the cutting element 102 is dimensioned such that during plowing, only the lower half of the first cutting element 102, located below the rotation axis, penetrates into the ground 120, whereby frictional forces with the ground 120 induce rotation. The rotation of the first cutting element 102 also causes the separated gravel to be lifted.

[0071] The separated gravel is in frictional contact with the cutting surface of the cutting member 102. The cutting surface is the surface of the cutting member 102 that is formed inside the first cutting edge 103 or is surrounded by the first cutting edge 103. Furthermore, the cutting surface is the surface that faces the separated gravel. The cutting surface may be formed uniformly without irregularities, as shown in Figures 1 and 3.

[0072] Due to the lifting of the gravel by the rotating cutting elements 102, the gravel can be discharged in an energy-efficient manner into an adjacent gravel trench that was dug during the previous pass of the plow module.

[0073] In this case, in FIG. 1, the first cutting member 102 and the second cutting member 105 are mounted to the support structure 4, 5 relative to each other such that when the tillage implement 3 is placed on or penetrates the ground 120 in the working position, the cutting area of ​​the first cutting member 102 is spaced apart from or located above the second cutting member 105 in the vertical direction.

[0074] The rotating cutting element 102 and the second cutting element 105 cooperate synergistically. On the one hand, the desired tillage depth is maintained constant by the second cutting element 105, since the separated gravel pushes the second cutting element 105 with a predetermined pushing / advancing force over the adjusted inclination angle, thus acting against the lifting force of the rotating cutting element 102. On the other hand, the energetically advantageous effect of the rotating cutting element 102 is utilized in cutting the gravel, particularly the sides or side regions 122 of the gravel. This provides an energy-efficient tillage device 3 without negatively affecting the quality of the gravel furrow formation. Furthermore, the stationary second cutting element 105 presses the separated gravel in the direction of the first cutting element 102, thereby crushing the separated gravel. Furthermore, due to the lateral force introduced by the preceding second cutting element 105 onto the first support structure 4 (this is achieved in particular by the contact plate 8), which acts against the lateral force induced on the first cutting element 102 during cutting, simpler and improved guidance of the plowing device 3 by the traction machine, i.e., stabilization of its tracking during plowing, is possible.

[0075] The first and second cutting members 102 and 105 are arranged opposite to each other on the first and second support structures 4 and 5, respectively. The front of the cutting member 105, i.e., the cutting edge of the cutting member 105, is located a distance x behind the first cutting area of ​​the first cutting edge 103 of the first cutting member 102 in the plowing direction 110. Thus, during plowing, the fixed second cutting member 105 first contacts the side of the gravel row and then, with the second cutting edge 106 of the second cutting member 105, energy-efficiently separates the gravel row from the residual ground surface 120. Next, the first cutting member 102 cuts the side area 122 of the gravel row with its first cutting edge 103. In this case, the second cutting member 105 cuts the underside of the gravel furrow wall 122 cut by the first cutting member 102. This allows the following cutting element 102 of the following plow module 1 to cut and turn the gravel laterally in a vertical direction. The gravel is then twisted and dropped into the adjacent gravel furrow due to the curved shape of the concave disc of the first cutting element 102 and the oblique orientation of the first cutting element 102 with respect to the plowing direction 110. In other words, the first cutting element 102 and the second cutting element 105 cut the gravel in an energy-efficient manner, and at the same time, the first cutting element 102 and the second cutting element 105 are held at the desired cutting depth by the pressing force acting on the second cutting element 105, in which case the contact plate 8 provides lateral support on the gravel furrow wall 122, stabilizing the following of the tillage implement 3.

[0076] The second cutting element 105 cuts the underside of the gravel row in a predetermined area (cutter face). Another mounting area of ​​the second cutting element 105, in which a mounting rod for attachment to the first support structure 4 is arranged, is formed on the second cutting element 105 on the side opposite to the first cutting element 102. This causes the mounting rod to move within the already plowed gravel furrow during plowing, which reduces the tractive effort of the plowing implement 3.

[0077] The support structures 4, 5 are configured such that the first cutting element 102 and / or the second cutting element 105 are adjustable relative to one another along and / or vertically to the tilling direction 110. For example, the first cutting element 102 may be movably attached to the support structure 4 via height adjustment means 16 that cooperates with a slot in the first support structure 4. By adjusting the spacing between the cutting element 102, the second cutting element 105, and the support structures 4, 5 along the tilling direction 110, the tilling implement 3 can be adapted to the specific conditions of various soil types and used with optimized efficiency. Furthermore, if the elements become distorted after use of the tilling implement 3, the elements can be re-adjusted.

[0078] Furthermore, the support structures 4, 5 may be configured such that the first cutting member 102 is adjustable relative to one another along a directional component of its rotation axis 108, and the second cutting member 105 is adjustable relative to one another along a directional component of its cutter extension. In particular, the angle between the first rotation axis 108 and the cutter longitudinal axis can be adjusted. In this case, the first cutting member 102 and the second cutting member 105 are mounted on the respective support structure 4 or 5 such that their cutting planes are non-parallel and form a predetermined angle relative to one another. For example, the angle between the first rotation axis 108 and the cutter longitudinal axis is less than 90°, in particular between 45° and 80°.

[0079] Figure 4 shows a rear view of the unit shown in Figure 3. In this case, a second support structure 5 is shown, which is provided for supporting the first support structure 4. The second support structure 5, which is connected to the first support structure 4, is provided with width adjustment means 15, which allow the distance between the first cutting element 102 in the form of a concave disc and the second cutting element 105 in the form of the cutting blade 6 shown to be adjustable. Different width adjustment means 15 can be attached via exchangeable spacers. A stop plate 8 is shown above the cutting blade 6, which is provided for stop along the gravel trench wall 122 (not shown in Figure 4) in order to stabilize the tracking of the tillage implement 3.

[0080] Finally, in Figures 5a, 5b and 5c three partial views of a plow module 1 according to the invention are shown.

[0081] FIG. 5b shows a rear view of a unit of a second cutting element 105 in the form of a cutting cutter 6 provided with a stop plate 8 that rests against the gravel trench wall 122, with the second cutting element 105 extending rearward from the perspective of the drawing. To clarify the arrangement of the two cutting elements 102 or 105 in one plow module 1, the view shown in FIG. 5b shows one concave disk 102 on each side of the second cutting element 105 with the stop plate 8. The rear side of the stop plate 8 has a reinforcing plate 9, which provides greater strength and stability to the stop plate 8 (see FIG. 5c). A joint 7 is shown via which the second cutting element 105 in the form of a cutting cutter 6 can be variably adjusted with respect to the first support structure 4 in terms of its inclination angle. Furthermore, height adjustment means 13 are written, by means of which the cutting cutter-support structural unit can be adjusted in height relative to the base frame of the tillage implement 3 or the plough boom 2. The height adjustment means 13 is responsible for adjusting the height of the cutting cutter 6. Furthermore, separate height adjustment means are provided for the first cutting element 102 in the form of a concave disc.

[0082] Figure 5a shows a view of the plow module 1 according to the present invention from the right side of the rear view shown in Figure 5b, while Figure 5c shows a side view from the left side of the rear view shown in Figure 5b.

[0083] The pivotability of the second cutting element 105 in the form of a cutting cutter 6 about the joint 7 is indicated in FIG. 5 a by a double arrow 12. The corresponding locking of the adjusted tilt angle of the cutting cutter 6 is effected by a tilt fixing means 11.

[0084] The left-hand side view 5c of the rear view shown in Fig. 5b shows that the stop plate 8 rests as a longitudinal guide against the gravel furrow wall (not shown in Fig. 5c) to stabilize the follow-up, while the cutting cutter 6 already cuts the gravel furrow bottom 121 of the gravel strip to be separated at a given depth in the ground to be plowed, which is separated and turned over by the indicated concave disc 102. Due to the fact that the cutting cutter 6 passes through the stop plate 8 and is fixedly mounted there, the stop plate 8 can likewise be pivoted together with the cutting cutter 6 via the joint 7, i.e. the stop plate 8 always pivots together with the cutting cutter 6, even when the tilt angle changes. [Explanation of symbols]

[0085] 1 Plow Module 2 Base frame / plow boom 3. Tillage equipment 4. First support structure 5 Second support structure 6 Cutting cutter 7 Joint 8. Mounting plate 9 Reinforcement plate 10 recess 11 Tilt fixing means 12 Double Arrow 13 Height adjustment means Cutting cutter 14 Gravel Ditch 15 Width adjustment means 16 Height adjustment means Concave disc 102 First cutting member, concave disc 103 First Cutting Edge 105 Second cutting member 106 Second Cutting Edge 108 Rotation axis of first cutting member 110 Plowing direction 120 Ground 121 Separation surface / gravel trench bottom / soil area 122 Side area / gravel wall

Claims

1. A plow module (1) having a plow-following stabilizing means, which is replaceably mounted on a base frame (2) of a tillage implement (3) for tilling the ground, the plow module (1) comprising: a rotatable first cutting element (102) formed as a concave disc-cutting plate with a circumferentially extending first cutting edge (103), the first cutting element (102) being configured so that the plough module (1) can move along a plowing direction (110) over the ground surface (120) to cut a lateral area (122) of gravel rows in the ground surface (120); a flat second cutting element (105) with a second cutting edge (106), which is configured so that the plow module (1) can move over the ground surface (120) in the plowing direction (110) to separate the bottom area (202) of the gravel strips of the ground surface (120); In a plow module (1), The plow module (1) is formed as a pre-assembled structural unit, and in the plow module (1), the second cutting element (105), formed as a fixed cutting cutter, follows with its cutting edge the first cutting element (102) in the plowing direction (110); - said first cutting member (102) is arranged on a first support structure (4); - a second support structure (5) is provided on which said second cutting member (105) is arranged and which is connected to said first support structure (4); - said first support structure (4) has means for removably attaching it to the base frame (2) of said tillage implement (3); the cutting cutter (6) is bent backwards, which allows achieving a dynamic force balance between the first cutting element (102) and the cutting cutter (6) in order to stabilize the plough's tracking; The cutting cutter (6) cooperates with an additionally provided bearing plate (8) that is supported to stabilize the plough's follow-up on the gravel groove wall (122) where the side areas of the gravel strip are separated. A plow module (1) characterized in that:

2. 2. The plow module according to claim 1, wherein the second support structure (5) is pivotally connected to the first support structure (4) via a joint (7).

3. 3. The plow module according to claim 1, wherein the first cutting member (102) is movably arranged on the first support structure (4), whereby a distance between the first cutting edge (103) of the first cutting member (102) and the second cutting edge (106) of the second cutting member (105) is adjustable.

4. 4. The plow module (1) according to claim 1, wherein the first cutting member (102) and the second cutting member (105) are arranged relative to one another such that the cutting area of ​​the first cutting edge (103) of the first cutting member (102) is vertically spaced from the second cutting edge (106) of the second cutting member (105).

5. 5. The plow module (1) according to claim 4, wherein the first cutting area is formed in a first cutting plane and the second cutting area is formed in a second cutting plane, the first cutting plane and the second cutting plane forming an angle with each other of between 30° and 135°.

6. 6. The plow module (1) according to any one of the preceding claims, wherein the first cutting member (102) is curved and has a conical or frustoconical shape.

7. 7. The plow module (1) according to any one of claims 1 to 6, wherein the first cutting edge (103) of the first cutting member (102) has a plurality of circumferential recesses (10).

8. 8. A plow module according to any one of claims 1 to 7, wherein the cutting cutter (6) of the second cutting element (105) is L-shaped, the first bar of the cutting cutter (6) being oriented horizontally in the working position of the plow module (1), while the second bar is oriented substantially vertically.

9. 9. The plow module according to claim 1, wherein the cutting cutter (6) is formed in one piece.

10. 10. The plough module according to claim 1, wherein the cutting cutter (6) together with the contact plate (8) forms an adjustable gravel furrow bottom-cutter guide unit.

11. 11. The plow module according to claim 10, wherein the gravel furrow bottom-cutter guide unit is depth-adjustable by height adjustment means (13) formed as a perforated plate suspension.

12. 12. The plow module according to any one of claims 1 to 11, wherein the cutting cutter (6) has an adjustable tilt angle via its rotation axis (108) for adjusting the penetration force.

13. 9. The plow module according to claim 1, wherein the cutting cutters (6) have an adjustable distance from the gravel trench wall (122) via spacers.

14. A plow module (1) as described in claim 4, wherein the first cutting area is formed within a first cutting plane and the second cutting area is formed within a second cutting plane, and the first cutting plane and the second cutting plane form an angle of 45° to 110° with each other.

15. A tillage implement (3) having a base frame (2), characterized in that at least one plough module (1) with a plough-following stabilization means according to any one of claims 1 to 14 is arranged on the base frame (2) of the tillage implement (3).

Images