Wearing element for a soil-working tool, main body for a soil-working tool, and soil-working tool

Abstract

The present invention relates to a wearing element (2) for a soil-working tool (40), in particular an agricultural soil-working tool (40), and also to the associated soil-working tool (40), wherein the wearing element (2) has at least one cutting edge (4) and / or tip (6) and / or a directing element (26), and also has at least one fastening portion (18) and in particular a mechanical interface, designed for detachably fastening the wearing element (2) to a main body (20) of an associated soil-working tool (40), wherein the wearing element (2) is produced from cast iron, in particular from white-solidified cast iron or comprises white-solidified cast iron.

Description

[0001] Wear element for a soil tillage tool, base body for a

[0002] Soil cultivation tool and soil cultivation tool

[0003] The invention relates to a soil tillage tool such as a cultivator point, ploughshare, chisel, or pre-cutter or disc coulter, comprising a base body on which a cast cutting / tip element is provided, which is pulled through a soil during operation of the soil tillage tool. According to one aspect of the present invention, a wear element in the form of a cutting element or a tip element or bar element of a soil tillage tool is provided, which is manufactured by a casting process.

[0004] Shares currently on the market comprise a boron steel base body onto which carbide plates are soldered. The boron steel base body is subject to high wear, which can lead to share failure. Furthermore, soldering errors can occur when soldering the carbide plates, which can lead to share failure if the carbide plates break or tear off during field work. Soldered carbide plates are considered non-detachable, meaning they can be removed and attached during operation or during a break in operation in a field. Due to their shape and position, the carbide plates wear unfavorably, so that the share becomes blunt after a short time and the result is not optimal.

[0005] It is therefore desirable to provide a share for a soil tillage tool that does not have the problems of the state of the art.

[0006] The present invention relates to a wear element for a soil tillage tool with at least one cutting edge and / or tip and / or a guide element, wherein the wear element has at least one fastening section and preferably a mechanical interface. The fastening section is designed to releasably fasten the wear element to a base body of a soil tillage tool. The optional mechanical interface can serve to provide a contact surface for the connection between the wear element and the base body of a soil tillage tool. The wear element is made of cast iron, in particular of white-solidified cast iron. Due to its microstructure, white-solidified cast iron is lighter in fracture structure than slowly solidified conventional gray cast iron.

[0007] According to one embodiment of the wear element, the white-solidified cast iron has a composition of 2.8-3.7 wt.% carbon, 0.3-0.9 wt.% silicon, 0.3-1.0 wt.% manganese, 0.001-0.5 wt.% phosphorus, 0.001-0.5 wt.% sulfur, 1-2 wt.% chromium, 3.3-4.8 wt.% nickel, 0-0.7 wt.% molybdenum, 0-1 wt.% vanadium, 0-1.0 wt.% copper, with the remainder being iron and unavoidable impurities. The term "unavoidable impurities" is to be interpreted in relation to economic considerations and not to the technical possibilities that may be available, whereby the concentration of the unavoidable impurities does not affect the properties of the cast iron.

[0008] According to a further embodiment of the wear element, the preferably white solidified cast iron has a composition with 3.0 - 3.6 wt.% carbon, 0.4 - 0.7 wt.% silicon, 0.3 - 0.9 wt.% manganese, 0.001 - 0.3 wt.% phosphorus, 0.001 - 0.2 wt.% sulfur, 1.2 - 1.7 wt.% chromium, 3.5 - 4.3 wt.% nickel, 0.001 - 0.4 wt.% molybdenum, 0.3 - 0.6 wt.% vanadium, 0.4 - 0.9 wt.% copper, with a remainder of iron and unavoidable impurities.

[0009] According to an additional embodiment of the wear element for a soil tillage tool, the cast iron comprises 3.22 - 3.28 wt.% carbon, 0.55 - 0.7 wt.% silicon, 0.45 - 0.55 wt.% manganese, 0.22 - 0.28 wt.% phosphorus, 0.01 - 0.1 wt.% sulfur, 1.45 - 1.55 wt.% chromium, 3.72 - 3.82 wt.% nickel, 0.22 - 0.32 wt.% molybdenum, 0.35 - 0.45 wt.% vanadium, 0.7 - 0.85 wt.% copper, with a remainder of iron and unavoidable impurities.

[0010] The above cast iron materials show exceptional resistance to abrasive wear due to their hardness.

[0011] In one embodiment of the present wear element, the wear element is cast using a centrifugal casting process. Centrifugal casting allows for better mold filling by the molten metal. Centrifugal casting is intended to utilize the improved mold filling ratio and a pore-reducing effect of the centrifugal or centrifugal casting process, as is known from the casting of cylinder liners. Blade-shaped wear elements, in particular, can be cast using a centrifugal casting process, provided that a longitudinal direction of a parallelogram-shaped, blade-shaped wear element is aligned within a rotating cylinder along the longitudinal axis of the cylinder, provided that the cylinder rotates about a horizontal axis.

[0012] In a further embodiment of the wear element, the cutting edge is straight or, in particular, at least partially wavy, serrated, and / or concave. Even if it has not been explicitly stated so far, straight cutting edges are generally preferred because they are easy to manufacture. Various cutting edge shapes are provided here. Smooth cutting edges, coarsely toothed cutting edges, but also relatively finely toothed cutting edges are possible. Cutting edge shapes that would wear out too quickly with softer metals such as sheet steel are possible here. Furthermore, a stepped cutting edge shape is provided which is coarsely toothed and allows uncut material to slide outwards. The cutting edge should be straight and arrowed, i.e. arranged at an angle to the direction of movement. Toothed, serrated, or wavy cutting edge shapes are also provided.Cutting edge shapes that allow material that cannot be cut to slide outwards along the side of the cutting edge are preferred.

[0013] According to an additional embodiment of the invention, the wear element has a blade that moves substantially parallel to the ground upon movement of the cutting edge of the wear element. The blade may be at least partially corrugated and / or scaled and / or provided with depressions or projections. A corrugation may run obliquely or transversely to a direction of movement in order to reduce frictional resistance of the wear element through the ground. This reduces the contact surface of the wear element with respect to the earth passing by, thus reducing the overall friction of the wear element with respect to the ground.

[0014] Projections can be provided, particularly in the area in front of fastening holes, to reduce or prevent direct wear of fastening screws caused by moving soil. The surface structure in the form of corrugations, scales, and / or depressions and projections serve to reduce the coefficient of friction with the soil.

[0015] In an additional design of the wear element, a corrugation on the blade of the cutting edge corresponds to a corrugation on the cutting edge. Here, the wear of the wear element on the cutting edge is controlled in such a way that a corrugation or serration of the cutting edge is maintained even under wear conditions. The tooth areas are made stronger, and concave sections are made thinner, as greater wear is to be expected on the teeth. Such a design has a corrugation that runs parallel to a direction of movement, with the corrugation crests and corrugation troughs each running in the direction of movement. Due to the shape of the corrugations, the teeth can wear more rapidly because the material thickness is greater in the tooth area. The concave spaces between the teeth are subject to reduced wear and can therefore be manufactured with a thinner material.The different wear is caused, for example, by lumps of earth that are already broken up by the teeth and therefore hardly come into contact with convex sections of the cutting edge.

[0016] In another exemplary embodiment of the wear element, it further comprises a thermally sprayed coating such as an iron or iron carbide layer, a plasma coating such as a Mo plasma, or an amorphous carbon coating, also known as a diamond-like carbon (DLC) layer. This is preferably applied only to one side and / or partially. Furthermore, the wear element can be provided with a nitriding or phosphating as surface hardening on at least one surface or part of a surface. Such nitriding can be applied in particular to thermally sprayed steel layers.This design gives the wear element an additional self-sharpening property, which, in addition to the naturally harder and tougher material, makes it possible to control wear in order to increase the service life of the wear element and avoid the need to resharpen the wear element.

[0017] Through appropriate mold design combined with the use of precision casting, it is possible to machine only one cutting edge or tip of the wear element, while producing the other aspects, such as the mechanical interface and at least one fastening element, with sufficient precision during casting, so that further machining to maintain the required manufacturing tolerances is not necessary. Process steps that fall under the term cleaning, such as demolding, sand removal, shot blasting, as well as the separation of gates, risers, and feeders, as well as grinding the gates, are not considered machining here, but rather processes that require surface machining to achieve a required manufacturing tolerance.The aim of this design is to achieve the production of the wear element, in particular the surface of the blade, the cutting edge, the fastening elements and the mechanical interface, without machining.

[0018] According to a further embodiment of the wear element, the wear element is a wear element of an agricultural soil cultivation tool. The present invention relates only to the agricultural sector and not to civil engineering and mining.

[0019] According to a further aspect of the present invention, the wear element is a wear element for a cultivator, in particular for a wing share and in particular for a goosefoot share. Here, the soil is cut through and partially raised for cultivation at a depth of 1.5 cm to 20 cm using horizontally running wings of a wing share or a goosefoot share. In the case of plants, the above-ground part is cut off just below the surface and thus separated from the roots. The soil is loosened and partially raised with the severed plant material, whereby the plant material lies on top of the soil where it can dry out. Furthermore, the cultivator can be used to prepare a field for further measures such as applying fertilizer, incorporating crop residues, incorporating organic fertilizer, or sowing. The wear element can be changed without having to replace the entire wing share or goosefoot share.

[0020] In a further embodiment of the present invention, the wear element is a wear element of a plough, in particular a ploughshare. In a further embodiment of the present invention, the wear element is a wear element of a six-tine harrow, in particular a disc harrow. In a further embodiment of the present invention, the wear element is a wear element of a digging share. In a further embodiment of the present invention, the wear element is a wear element of a soil planer. In a further embodiment of the present invention, the wear element is a wear element of a harrow, in particular a disc harrow. The wear element according to the invention can also be used in a hoe or a rotary hoe. In a further embodiment of the present invention, the wear element is a wear element of a slope disc.In a further embodiment of the present invention, the wear element is a wear element of a hoeing device. In a further embodiment of the present invention, the wear element is a wear element of a rotary hoe. According to a further aspect of the present invention, a base body for a soil tillage tool is provided, which comprises at least one receptacle for a wear element of the type described above, which can be detachably fastened to the base body. The base body further comprises a fastening device which is designed to fasten the soil tillage tool to a part of a soil tillage machine. In the case of a cultivator share, for example, the base body serves to combine the respective wear element or several wear elements to form a wing or duckfoot share and then to attach this to a share carrier, in particular a spring-loaded one.

[0021] The fastening device can, for example, comprise a screw fastening with or without stops or centering devices, with which the base body can be attached to a share carrier of a soil tillage machine. The fastening device can, for example, be adapted to a share carrier of a specific manufacturer. This makes it possible to use a base body that is adapted to a specific soil tillage tool of a soil tillage machine of a specific manufacturer. It is possible to use the same wear elements for different base bodies, with the base body itself serving as an adapter or intermediate element between one or more wear elements and a corresponding soil tillage tool or soil tillage machine.

[0022] It should be noted that the base body can also be designed to be welded to a part of a soil tillage machine.

[0023] The base body must be designed in such a way that no significant wear occurs on the base body during operation of a soil tillage machine and that only the wearing elements wear out during operation.

[0024] According to a further embodiment of the base body for a soil tillage tool, the base body further comprises a mechanical adapter configured to attach the soil tillage tool to parts of various soil tillage machines. Here, a base body for a type of soil tillage tool, such as a goosefoot share or part of a harrow, can be formed by the base body together with the wear elements, wherein the base body and thus the soil tillage tool can be adapted to various tool holders of soil tillage machines from different manufacturers using the adapter. Thus, it is also possible to adapt the base body to an existing soil tillage machine using a corresponding adapter, without having to redesign an entire base body.

[0025] According to a further aspect of the present invention, a damping element with a substantially planar shape is provided, which is designed to be mounted between at least one wear element and a base body. The damping element has at least one opening for at least one fastening element. The damping element can comprise a fiber sealing material, a composite material with graphite, a ferroelastic material, a metal-elastomer material, a polymer material, or a multi-layer metal material. In this case, a high modulus of elasticity and high strength are required of the damping material, since only strong impacts are to be cushioned or dampened, but excessive mobility should be prevented from leading to loosening of the fastening elements.

[0026] According to a further aspect of the present invention, the wear element is provided with the damping element attached thereto. This creates a marketable unit that avoids any problems related to differential wear between the damping element and the wear element. The damping element can be glued, riveted, or screwed to the wear element. In the case of solderable damping element materials, it can also be provided to solder the damping element to the wear element. It is also provided that, provided the material pairing between the damping element and wear element allows it, the damping element can be welded to the wear element. Even though cast iron is considered difficult to weld, modern welding methods in combination with a precise knowledge of the materials of the damping element and the wear element should allow the use of a welded connection.It is also planned to connect a damping element with a wear element by means of a common thermally sprayed coating.

[0027] According to a further aspect of the present invention, a soil working tool is provided which comprises at least one base body as described above to which at least one wear element as described above is detachably attached.

[0028] According to a final aspect of the present invention, a soil tillage machine for agriculture is provided, comprising at least one soil tillage tool as described above. Thus, the soil tillage machine comprises at least one base body to which at least one wear element is attached.

[0029] In the following, the present invention is described using exemplary and schematically illustrated embodiments.

[0030] Figure 1 shows a perspective view of an embodiment of a cultivator share according to the invention.

[0031] Figure 2 shows the cultivator share of Figure 1 in a top view.

[0032] Figure 3 shows the cultivator blade of Figures 1 and 2 in a perspective partial exploded view.

[0033] Figure 4 shows the cultivator blade of Figures 1 and 2 in another perspective partial exploded view.

[0034] Figure 5 shows a further embodiment of a wear element of a cultivator share. Figure 6 shows a wear element designed as a cutting element.

[0035] Figure 7 shows the wear element of Figure 6 in a frontal view.

[0036] In the following, both in the description and in the figures, the same or similar reference numerals are used to refer to the same or similar components or elements.

[0037] Figure 1 shows a perspective view of an embodiment of a soil cultivation tool 40 according to the invention in the form of a cultivator share, wherein in this view four wear elements 2 are shown. The wear elements 2 are screwed to a base body 20, which in turn is screwed to one end of a share holder of a

[0038] soil tillage machine. A wear element 2, designed as a cutting element 24, is attached to the front of the cultivator share 40. The

[0039] Cutting element 24 has a central tip 6 from which cutting edges extend. The geometry of the central tip 6 is preferably designed such that it has a self-sharpening geometry and breaks up the soil so that the adjacent cutting edges or cutting elements can cut up the soil. Two further wear elements 2, which are also designed as cutting elements 24, are arranged on the left and right. These cutting elements 24 have a substantially straight cutting edge 4. The cutting edges 4 have a "grind" designed as a hollow groove 16. Behind the wear element 2 with the tip 6, another wear element 2 is arranged, which is designed as a guide element 26. The guide element ends in an upwardly directed shield to throw broken-up soil upwards. The guide element 26 serves to minimize wear on a cultivator arm or cultivator tine or cultivator handle.The focus here is on the wear elements 2, which comprise or are made of white-set cast iron and exhibit high strength. If a wear element 2 fails, a farmer can replace this part of the share on-site in the field, as the wear elements 2 are detachably attached to a base body by screws. Since the wear elements are made of cast iron, even the loss of part of a wear element 2 in a field is not a problem, as no hazardous substances are released.

[0040] Figure 2 shows the cultivator share from Figure 1 in a top view, clearly showing the function of the wear elements 2. The guide element 26 protects a cultivator arm (not shown). The cutting elements 24, with their forward-facing cutting edges, are arranged in front of the guide element 26. The middle cutting element 24, which is further provided with a tip 6, is designed to break up the soil when moving through it, with the two cutting elements cutting through the soil on the left and right.

[0041] Figure 3 shows the cultivator share from Figures 1 and 2 in a perspective partial exploded view, with only the front three wear elements 2 with their fastening components shown in an exploded view. The cultivator arm or the soil tillage tool 40 here carries a base body 20. A wear element 2, designed as a guide element 26, is fastened to the base body 20 by means of a screw (not shown). The three front wear elements 2, designed as cutting elements 24, are shown in an exploded view. The cutting elements 24 each have fastening sections 18 through which fastening elements 8 in the form of countersunk screws can be passed. Damping elements 28 are arranged between the cutting elements 24 and the base body 20. The damping elements 28 are essentially flat and have a strength similar to that known from fiber gaskets of cylinder heads.The damping elements 28 have openings 50 for the passage of the fastening elements 8. It is also possible to design the damping elements 28 as a composite material with graphite, a ferroelastic material, a metal-elastomer material, a polymer material, or a multi-layer metal material, as is known from cylinder-head gaskets. In contrast to cylinder-head gaskets, the sealing function is not used here, but rather a preload and spring function to reduce impact loads and notch effects. The wear elements 2 are designed as cast parts that are manufactured without significant post-processing. Therefore, small irregularities, such as those that occur during a casting process, can lead to stress loads during operation, which can cause the wear element to break, particularly in the event of overloading. A damping element can prevent peak loads and increase service life.The fastening sections 18 here form through holes for the fastening elements, more precisely the surfaces of the countersinks on which the heads of the screws rest.

[0042] Figure 4 shows the cultivator share from Figures 1 and 2 in another perspective partial exploded view. Here, the three front wear elements 2, which are designed as cutting elements 24, are firmly screwed to the base body 20. The middle cutting element ends in a point 6. The rear part of the base body 20 is exposed and can be screwed to the cultivator arm 40 using the fastening elements 42 for the base body 20 and the adapter 22. The cultivator arm 40 is provided with threaded holes or through holes into which the fastening elements 42 for the base body 20 are screwed to secure the base body 20. An adapter 22 is provided to connect the base body 20 to different types of cultivator arms 40. The adapter 22 can also be made of cast iron.At the front of the adapter, the wear element 2, designed as a guide element 26, is screwed onto the base body 20 by means of a fastening screw 8, whereby a damping element 28 can also be used here. The base body 20 is machined from steel in one part, but can also be manufactured from several parts by means of welded joints or designed as a drop-forged part.

[0043] Figure 5 shows a wear element 2 designed as a cutting element 24. This component is cast and requires only the usual post-processing, which falls under the term demolding and casting cleaning. However, all steps related to achieving manufacturing tolerances are preferably excluded. The wear element is not further machined after casting, for example, to sharpen a cutting edge, smooth a contact surface, or perform any other shaping measures. Ideally, the casting is finished after casting and requires no further machining to maintain manufacturing tolerances. The term "grinding" 4 is intentionally placed in quotation marks here to clarify that this part is indeed a “grind 4a conventional blade, but is not produced by grinding. The wear element 2 forms a cutting element 24, with a cutting edge 4 which is designed as a wavy or serrated cutting edge 4, wherein the cutting edge ends in a point 6. The cutting edge 4 is formed by a cast-in "grind" 14, which is shown here as a hollow groove, although other "grind shapes" are also conceivable. In Figure 5, a straight or flat "grind" 4 The term “cut 4is placed in quotation marks to clarify that this is only a reference to a corresponding part of a cutting edge and not an actually ground part. The cutting element 24 forms a blade 12, corresponding to a conventional blade. The area of ​​the blade is subjected to only slight wear during operation, since the blade moves essentially parallel to a direction of movement of the share or cutting element 24. A wear area 30 is provided on the blade in which material can be removed during operation without significantly impairing the function of the cutting element 24. When using a cutting edge 4 that is self-sharpening during use, the “grind 414 are evenly worn away until the wear limit line 36 is reached. Further wear would affect the fastening sections 18 and the fastening elements with which the cutting elements 24 are releasably attached to the base body. The sheet 12 also includes a label 44 such as a maximum tightening torque of the fastening elements 8, an identification of the wear limit 36, a manufacturer, a serial or part number. It is also intended to apply a digital 2D code 32 to the sheet in order to make further information such as a deposit system for the wear elements 2 or assembly instructions or videos available via a code reader with internet access. The 2D code can be designed as a QR code.

[0044] Figure 6 shows a wear element 2 designed as a cutting element 24. The wear element 2 of Figure 6 essentially corresponds to the one shown in Figure 5. The cutting edge 4 is serrated or stepped. The "grind 4each has a hollow groove 16. The cutting edge forms several pointed corners or teeth 52. Adjacent to the cutting edge is an area with wear material 30, which is slowly worn away during operation. The wear material is limited to the rear by the line of the wear limit 36. Adjacent to the wear limit 36, the blade of the wear element 2 is provided with scale-like projections 46, which are intended to reduce the contact surface with the soil and thus reduce friction of the passing soil against the blade of the wear element, even if this aspect is rather minor compared to the work required to break up or cut up the earth with the share.Elevations 46 are also provided on the fastening sections 18, which act like a shield to prevent direct contact of the passing soil with the fastening elements during cultivating, thus further reducing wear on the fastening elements. Furthermore, the wear element has flat ribs that extend longitudinally above and below the blade. Concave longitudinal cracks are formed between the ribs on the wear element 2, which ribs increase the stability of the wear element. The concave longitudinal cracks each form an indentation in the trailing edge at the end of the wear element 2. Such surface structures can be easily realized due to the casting process.

[0045] Figure 7 shows the wear element 2 of Figure 6 in a frontal view. The grooves 16 of the cutting edges appear parallelogram-shaped. The underside is stepped in the transverse direction and thus forms longitudinally extending steps or projections 46, at least in the area of ​​the cutting edges. The underside of the wear element 2 is additionally provided with a coating 48, which is implemented here as a thermally sprayed layer and imparts an additional self-sharpening property to the straight cutting edge. The view shows the wear area 30, which adjoins the cutting edges. Behind the groove 16, the blade with the scale-like projections 46 can be seen. The upper surface of the wear element has ribs intended to reinforce the wear element. Between the ribs, the surface forms concave cracks.At the rear of the wear element, the two projections 46 can be seen, which are intended to protect the fastening elements in the fastening sections like a shield.

[0046] List of reference symbols

[0047] 2 Wear element

[0048] 4 Cutting edge 6 Tip

[0049] 8 Fastening element

[0050] 12 sheets

[0051] 14 “cut 4

[0052] 16 Cove 18 Fastening section

[0053] 20 basic bodies

[0054] 22 adapters

[0055] 24 cutting element

[0056] 26 Guide element 28 Damping elements / dampers

[0057] 30 V wear material

[0058] 32 2D code / QR code

[0059] 36 Wear limit

[0060] 40 Soil cultivation tool / Handle for mounting on soil cultivation tool 42 Fastening elements for the base body / Adapter

[0061] 44. Labeling

[0062] 46 projection / elevation

[0063] 48 Coating

[0064] 50 Mounting hole damper 52 Corners / teeth of a cutting edge

Claims

Claims 1. Wear element (2) for a soil tillage tool (40), in particular an agricultural soil tillage tool, with at least one cutting edge (4) and / or tip (6) and / or a guide element (26), as well as at least one fastening section (18) and in particular a mechanical interface, designed for the releasable fastening of the wear element (2) to a base body (20) of a soil tillage tool (40), characterized in that the wear element (2) is made of cast iron, in particular of white-solidified cast iron. Wear element (2) for a soil working tool (40) according to claim 1, characterized in that the cast iron comprises: Carbon: 2.8 - 3.7 wt.%, Silicon: 0.3 - 0.9 wt.%, Manganese: 0.3 - 1.0 wt.%, Phosphorus: 0 - 0.5 wt.%, Sulphur: 0 - 0.5 wt.%, Chromium: 1 - 2 wt.%, Nickel: 3.3 - 4.8 wt%, Molybdenum: 0 - 0.7 wt.%, Vanadium: 0 - 1 wt.%, Copper: 0 - 1 wt.%, Residual iron and unavoidable impurities 3. Wear element (2) for a soil working tool (40) according to claim 2, characterized in that the cast iron comprises: Carbon: 3.0 - 3.6 wt.%, Silicon: 0.4 - 0.7 wt.%, Manganese: 0.3 - 0.9 wt.%, Phosphorus: 0.001 - 0.3 wt%, Sulphur: 0.001 - 0.2 wt.%, Chromium: 1.2 - 1.7 wt%, Nickel: 3.5 - 4.3 wt%, Molybdenum: 0.001 - 0.4 wt.%, Vanadium: 0.4 - 0.9 wt.%, Copper: 0.001-0.2 wt.%, Residual iron and unavoidable impurities Wear element (2) for a soil working tool (40) according to claim 3, characterized in that the cast iron comprises: Carbon: 3.22 - 3.28 wt%, Silicon: 0.55 - 0.7 wt.%, Manganese: 0.45 - 0.55 wt.%, Phosphorus: 0.22 - 0.28 wt.%, Sulphur: 0.01 - 0.1 wt.%, Chromium: 1.45 - 1.55 wt.%, Nickel: 3.72 - 3.82 wt%, Molybdenum: 0.22 - 0.32 wt.%, Vanadium: 0.35 - 0.45 wt.%, Copper: 0.7 - 0.85 wt.%, The remainder is iron and unavoidable impurities. Wear element (2) for a soil tillage tool (40) according to one of claims 1 to 4, wherein the wear element can be cast using a centrifugal casting process. Wear element (2) for a soil tillage tool (40) according to one of the preceding claims, wherein the fastening section (18) comprises at least one opening for a fastening element (8), in particular a countersunk screw or at least one threaded bore, and / or wherein the mechanical interface comprises at least one contact surface, in particular a contact edge. Wear element (2) for a soil tillage tool (40) according to one of the preceding claims, wherein the cutting edge (4) of the wear element (2) has a concave groove (16), in particular a one-sided concave groove (16).Wear element (2) for a soil cultivation tool (40) according to one of the preceding claims, wherein the cutting edge (4) is straight or, in particular, at least partially wavy and / or toothed and / or concave. Wear element (2) for a soil cultivation tool (40) according to one of the preceding claims. preceding claims, wherein a blade (12) of the cutting edge (4) and / or tip and / or of the guide element (24) is provided with a wear indicator, and / or is provided with an indication of a torque for fastening elements (8) and / or is provided with a recycling note. Wear element (2) for a soil tillage tool (40) according to one of the preceding claims, wherein a cutting edge (4) of the wear element (2) is designed to be self-sharpening and in particular comprises a thermally sprayed coating that is preferably applied only on one side and / or partially, and / or wherein the wear element (2) is provided on at least one surface with nitriding or phosphating as surface hardening. Wear element (2) for a soil tillage tool (40) according to one of the preceding claims, wherein the wear element (2) is not machined.Wear element (2) for a soil cultivation tool (40) according to one of the preceding claims, wherein the wear element (2) is a wear element (2) of an agricultural soil cultivation tool (40). Wear element (2) for a soil cultivation tool (40) according to one of the preceding claims, wherein the wear element (2) is a wear element (2) of a plough, a ploughshare, a six-point harrow, a disc harrow, a digging share, a soil planer, a harrow, a disc harrow, a hoe, a rotary hoe, or a slope disc. Wear element (2) for a soil cultivation tool (40) according to one of the preceding claims, wherein the wear element (2) is a wear element (2) for a cultivator, in particular for a wing share and in particular for a goosefoot share.A base body (20) for a soil cultivation tool (40), comprising at least one receptacle for releasably fastening and, in particular, screwing a wear element (2) according to one of claims 1 to 14 to the base body (20), wherein the base body (20) further comprises a fastening device for fastening the base body (20) to a part of a soil cultivation machine. A base body (20) for a soil cultivation tool (40) according to claim 15, configured to be fastened, via an adapter (22), to a part of a. To be attached to a soil tillage machine.

17. Adapter (22) arranged to fasten a base body (20) according to claim 16 to parts of various soil tillage machines, wherein the adapter (22) consists in particular of cast iron.

18. Base body (20) for a soil cultivation tool (40) according to claim 17, further comprising an adapter (22) for attaching the soil cultivation tool (40) to parts of various soil cultivation machines.

19. Damping element (28) comprising a substantially planar shape and configured to be mounted between at least one wear element (2) and a base body (20), wherein the damping element (28) has at least one opening (50) for at least one fastening element (8), wherein the damping element (28) comprises in particular a fiber sealing material, a composite material with graphite, a ferroelastic material, a metal-elastomer material, polymer material or a multi-layer metal material.

20. Soil cultivation tool (20) comprising at least one wear element (2) according to one of claims 1 to 14, which is detachably fastened to a base body (40) according to one of claims 15, 16 or 18, wherein a flat damping element (28) is preferably arranged between the at least one wear element (2) and the base body (20).

21. Soil cultivation tool (40), wherein the soil cultivation tool (40) forms a cultivator share, comprising at least one wear element (2) with a cutting edge (4) and at least one wear element (2) with a tip (6) according to one of claims 1 to 15, preferably at least two wear elements (2) with a cutting edge (4) and one wear element with a tip (6) according to one of claims 1 to 15, which is detachably attached to a base body (20) according to one of claims 16, 17 or 19.

Images