Comminuting tool and comminuting system for comminuting rotor

Abstract

To provide a comminuting tool and a comminuting system for a comminuting rotor.SOLUTION: The present invention is based on a comminuting tool for a comminuting rotor (12), in particular for comminution of wood and / or soil. The comminuting tool includes at least one cutting edge (22) and at least one tool fastening region (36). The tool fastening region (36) is preferably at least partly realized as a tool fastening hollow. The tool fastening region (36) includes two tool subregions (38, 40) which extend in a longitudinal direction and are oriented at an angle to each other. The tool subregions (38, 40) include a tool fastening angle (A) which is greater than 90 degrees.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The invention relates to a crushing tool according to the preamble of claim 1 and to a crushing system according to claim 14. [Background technology]

[0002] Patent document 1 discloses a crushing tool (cutting tool, cutting tool, cutting tool) for a crushing rotor (commission rotor), in particular for crushing wood and / or soil, which has at least one cutting edge and at least one tool fastening area with two part areas oriented obliquely to each other in the longitudinal area. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] European Patent Application Publication No. 2852464 Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION It is an object of the present invention to provide a general-purpose crushing tool having improved properties, particularly with regard to strength, ease of assembly, and operationally reliable assembly. [Means for solving the problem]

[0005] This object is achieved according to the invention by the features of claim 1. Meanwhile, advantageous embodiments and further developments of the invention can be gleaned from the dependent claims. (Advantages of the present invention) The invention is based on a crushing tool for crushing rotors, in particular for comminution (pulverization) of wood and / or soil, which has at least one cutting edge and at least one tool fastening area which is preferably at least partially realized as a tool fastening recess (fastening hollow) and which comprises two part areas oriented obliquely relative to one another in its longitudinal area.

[0006] It is proposed that the subregions have a tool clamping angle A greater than 90 degrees. A "crushing tool" is a unit configured, in particular, for comminuting, in particular for cutting and / or chopping and / or breaking up material, in particular wood and / or soil, in particular rock. In particular, the crushing tool is configured to be fastened to a rotor base element of a crushing system connected to the crushing rotor. Preferably, the crushing tool can be fastened to the rotor base element in an exchangeable manner. Preferably, the crushing tool can be attached to the rotor base element via a connection that is preferably non-destructive and non-detachable. Preferably, the crushing tool can be connected to the rotor base element by a threaded connection. A "crushing tool" is a unit preferably having at least one cutting edge. In operation, the crushing tool absorbs and / or dissipates (discharges or dissipates) forces acting on the cutting edge. Preferably, the crushing tool may be realized by a tool base body having a cutter receptacle (receptacle) to which cutting blades, for example hardened cutting blades, in particular cutting blades made of hard metal, are connected. Preferably, the cutting blades are connected to the cutter receptacle of the tool base body of the crushing tool via a soldered connection. In principle, it is also conceivable that the cutting blades are fixedly connected to the cutter receptacle of the tool base body via a welded connection. In principle, it is also conceivable that the cutting blades are connected to the tool base body by other connection methods. In principle, it is also conceivable that the cutting blades are realized integrally with the tool base body of the crushing tool. If the cutting blades are realized integrally with the tool base body of the crushing tool, the entire crushing tool is integrally formed from a single part, preferably formed as a forged part. The term "crushing rotor" preferably refers to a rotating body with a plurality of rotor base elements connected to it, and in each case, a crushing tool can be connected via the rotor base element. The term "crushing rotor" preferably refers to a rotating body configured with at least one crushing tool for performing the crushing process.In operation, the crushing rotor rotates about its longitudinal axis, so that the crushing tools contact the material to be crushed. The "longitudinal axis" of the crushing rotor refers, in particular, to the rotationally symmetric axis of a geometric cylinder of minimum volume surrounding the crushing rotor. In particular, the crushing rotor is preferably realized rotationally symmetrically, and at least one rotor base element comprises a rotor base body, preferably rotatably fixed thereto. Particularly advantageously, the rotor base body is realized at least partially as a cylindrical tube. The rotor base element can be fastened to the base body in any manner deemed convenient by those skilled in the art, in particular by a threaded connection, preferably by integral mounting. Preferably, the rotor base element is welded to the base body. The "tool fastening area" preferably refers to an area where the crushing tools can be fastened to a correspondingly realized rotor base element. The tool fastening area forms a contact surface where the crushing tools adjoin the correspondingly realized tool fastening area on the rotor base element. Preferably, the tool fastening area is realized at least partially, i.e., in at least one area, as a tool fastening recess. Preferably, the tool clamping region is realized as a tool clamping recess, at least cross-sectionally, preferably completely, in at least one of the two tool part regions. Particularly preferably, the tool clamping region is realized as a tool clamping recess, at least partially, preferably completely, in both tool part regions. In principle, it is also conceivable that the tool clamping region is realized as a tool clamping recess in one tool part region, for example in the first tool part region, while being realized as a plane in the other tool part region, for example in the second tool part region. By "tool clamping recess" is preferably understood a recess that is preferably introduced at least into the side of the crushing tool and is configured to position and fix the crushing tool on a correspondingly realized rotor base element. By "longitudinal extent" is preferably meant the extent of the crushing tool from its upper end to its lower end. By "at an angle to each other" is preferably meant that the longitudinal extension axes of the two tool part regions are arranged at a tool clamping angle A relative to each other and are not oriented parallel to each other.The angle between two tool part regions is preferably measured between the two main extension planes of each tool part region. If the tool part regions each have a planar base, the angle between the tool part regions can preferably be measured between the respective bases, which are realized as grooves, for example.

[0007] The crushing tool, preferably also the rotor base element, is preferably realized as a forged part / forged component. Forged components produced in a forging process have tolerances that must be taken into account, particularly with regard to the angle specifications. The above and below mentioned angles are always understood to be design angles for which the crushing tool and / or rotor base element are designed. Due to the respective tolerances, the angles may deviate by up to 2 degrees in the corresponding manufactured components. "Configured" means specifically designed and / or equipped. When an object is configured for a specific function, it is understood that the object performs and / or executes said specific function, particularly in at least one application and / or operating state. Advantageously, embodiments according to the invention make it possible to provide a crushing tool that is particularly robust and can be attached to the rotor base element in a particularly simple manner. Particularly preferentially, forces acting on the crushing tool during operation can be dissipated (discharged, dispersed) to the rotor base element in a particularly effective manner. Embodiments according to the invention make it possible to provide a crushing tool with a particularly long service life. In particular, simple assembly and disassembly is also made possible by the crushing tool according to the invention.

[0008] It is further proposed that the tool part regions have a tool clamping angle A of 95 to 120 degrees (preferably 100 to 115 degrees) relative to one another. Particularly advantageously, two tool part regions of a tool clamping region have an angle of 110 degrees relative to one another. This makes it possible to realize the tool clamping region in a particularly advantageous way, in order to achieve a particularly advantageous support of the forces occurring during operation.

[0009] It is further proposed that the demolition tool has a tool fastening hole longitudinal axis and that the first tool part region has a first tool fastening hole angle B with the tool fastening hole longitudinal axis, which is different from a second tool fastening hole angle C that the tool fastening hole longitudinal axis has with the second tool part region. The "tool fastening hole longitudinal axis" preferably refers to the middle axis of a tool fastening hole introduced into the demolition tool, in particular into the tool base body of the demolition tool. The "tool fastening hole" preferably refers to a hole through which the demolition tool can be fixedly fastened to the rotor base element. The tool fastening hole preferably has a round cross section. The tool fastening hole is preferably realized as a bore. The tool fastening hole is preferably configured so that a fastening element configured to fasten the demolition tool is at least partially guided through and / or fastened into the tool fastening hole. Preferably, the tool fastening hole has an internal thread. Preferably, the tool fastening holes, which have an internal thread, are configured so that fastening members, for example screws, can be screwed into the tool fastening holes to connect the demolition tool to the rotor base element. Preferably, the tool fastening holes introduced into the demolition tool are realized as blind holes. However, in principle, it is also conceivable to realize the tool fastening holes as through holes. This allows for a particularly advantageous realization of the tool fastening area and particularly advantageous support of operating forces. Advantageously, the demolition tool can be realized in this way in a particularly simple and cost-effective manner, thereby enabling a fast and reliable assembly / disassembly of the demolition tool. Advantageously, a reliable fixation of the demolition tool to the rotor base element can also be achieved.

[0010] It is also proposed that the breaking tool has a tool fastening hole longitudinal axis and that a first tool part region of the tool fastening region has a first tool fastening hole angle B between 65 and 75 degrees with the tool fastening hole longitudinal axis. Preferably, the first tool fastening hole angle B that the first tool part region has with the tool fastening hole longitudinal axis is between 68 and 72 degrees, and in a particularly advantageous exemplary embodiment is 70 degrees. This makes it possible to realize the tool fastening region in a particularly advantageous way and to support the operating forces in a particularly advantageous manner.

[0011] It is further proposed that the breaking tool has a tool fastening hole longitudinal axis and that the second tool part region of the tool fastening region has a second tool fastening hole angle C with the tool fastening hole longitudinal axis of between 35 and 45 degrees. Preferably, the second tool fastening hole angle C that the second tool part region has with the tool fastening hole longitudinal axis is between 38 and 42 degrees, and in a particularly advantageous exemplary embodiment is 40 degrees. This makes it possible to realize the tool fastening region in a particularly advantageous way and to support the operating forces in a particularly advantageous manner.

[0012] It is further proposed that the first tool part region be realized as a main support region having a larger extent than the second tool part region. By "main support region" is preferably meant a region that can support a large portion of the operating forces acting on the crushing tool during operation, and in particular dissipate (discharge, dissipate) them onto the rotor base element. For this purpose, the first tool part region of the tool fastening region realized as a main support region is preferably oriented substantially perpendicular to the cutting blade movement direction. By "first tool part region having a larger extent" is meant that the first tool part region has a larger longitudinal extent than the second tool part region. The first tool part region is longer in the longitudinal direction than the second tool part region. The second tool part region is shorter in the longitudinal direction than the first tool part region. This makes it possible to provide a particularly advantageous support surface for the operating forces.

[0013] Furthermore, it is proposed that the first tool part region be realized as at least one part region of the tool rear face of the crushing tool. By "tool rear face of the crushing tool" it is preferably understood that the side of the crushing tool facing away from the cutting edge. This makes it possible to realize the crushing tool in a particularly advantageous way. Furthermore, this allows for advantageous force transmission to the rotor base element.

[0014] It is further proposed that the second tool part region is realized as at least one tool part region of the underside of the crushing tool. In this way, the crushing tool can be realized in a particularly advantageous manner. Advantageously, in this way, a particularly simple and precise positioning of the crushing tool on the rotor base element can be achieved.

[0015] Beyond this, it is proposed that the crushing tool has a cutting edge movement direction and that the first tool part region of the tool fastening region has a first cutting edge movement angle D of between 79 and 89 degrees relative to the cutting edge movement direction. Preferably, the first cutting edge movement angle D that the first tool part region has relative to the cutting edge movement direction is between 82 and 86 degrees, and in a particularly advantageous exemplary embodiment is 84 degrees. "Cutting edge movement direction" preferably means the direction in which the cutting edge of the crushing tool moves during operation. Preferably, the cutting edge movement direction is realized here as a linear movement component, along which the cutting edge moves at a defined time by the rotation of the crushing rotor. This realizes the tool fastening region in a particularly advantageous way, making it possible to support the operating forces in a particularly advantageous manner.

[0016] It is also proposed that the breaking tool has a cutting edge movement direction and that the second tool part region of the tool fastening region has a second cutting edge movement angle E with the cutting edge movement direction of between 9 and 19 degrees. Preferably, the second cutting edge movement angle E that the second tool part region makes with the cutting edge movement direction is between 24 and 28 degrees, and in a particularly advantageous exemplary embodiment is 14 degrees. This makes it possible to realize the tool fastening region in a particularly advantageous way and to support the operating forces in a particularly advantageous manner.

[0017] It is further proposed that the tool clamping region is at least partially realized as a tool wedge groove having side walls arranged at a first tool wedge angle F and a second tool wedge angle G relative to one another in the range of 130° to 172°. The term "tool wedge groove" (wedge-shaped groove) preferably refers to a groove formed by two side walls facing each other. The side walls are preferably realized as flat surfaces. However, it is also conceivable in principle for the side walls to have a convex or concave shape at least in the tool part region. For example, it is also conceivable for the side walls in the tool part region to be realized as spherical surfaces. The side walls realizing the tool wedge groove preferably form an obtuse angle with respect to one another. Preferably, a tool clamping region realized as a tool wedge groove has a groove bottom in which two obliquely extending side walls are realized as webs that are spaced apart from one another at the lower end of the tool clamping region. However, in principle, it is also conceivable that a tool clamping region embodied as a tool wedge groove does not have a groove bottom embodied as a web, but rather the side walls meet directly at the groove bottom. The phrase "at least partially embodied as a tool wedge groove" for a tool clamping region embodied as a tool clamping recess means that the tool clamping region can have side walls forming a tool wedge groove only in at least one region. Preferably, the tool clamping region is embodied as a tool wedge groove over its entire longitudinal extent. However, it is also conceivable in principle that a tool clamping region embodied as a tool clamping recess can be formed as a tool wedge groove by having oblique side walls only in the tool portion region, while having a different shape in the remaining region. It is also conceivable that a tool clamping region can be embodied as a tool wedge groove over less than 50% of its longitudinal extent. In principle, it is also conceivable that a tool clamping region can be embodied as a tool wedge groove in multiple regions arranged at a distance from one another. Preferably, the tool fastening regions are realized at least partially as tool wedge grooves in the first tool part region and in the second tool part region.In the first tool part region, the tool clamping region has side walls that form a tool wedge groove with a first tool wedge angle F relative to one another between 130° and 140°, particularly preferably between 133° and 137°, and in a particularly advantageous embodiment, 135°. In the second tool part region, the tool clamping region has side walls that form a tool wedge groove with a second tool wedge angle G relative to one another between 162° and 172°, particularly preferably between 165° and 169°, and in a particularly advantageous embodiment, 167.5°. Preferably, the tool clamping region is realized as a tool wedge groove in both the first and second tool part regions. However, it is also conceivable in principle for the tool clamping region to be realized as a tool wedge groove only in one of the tool part regions, in particular only in the first tool part region, while forming a flat contact surface or contact elevation in the second tool part region. This makes it possible to realize the tool clamping area in a particularly advantageous manner, so that in the clamped state it has a particularly advantageous holding force in the lateral direction.

[0018] It is further proposed that the tool fastening region is realized at least partially as a tool wedge groove in each of the two tool part regions, the side walls of which have first and second tool wedge angles F and G which differ from one another in the two tool part regions. Preferably, the first and second tool wedge angles F and G, at which the side walls of the tool wedge groove are respectively arranged in the two tool part regions, differ from one another, preferably by at least 10 degrees, more preferably by at least 20 degrees, particularly preferably by 30 degrees or more. As a result, particularly advantageous support of the operating forces can be achieved via the different tool part regions.

[0019] It is further proposed that the crushing tool have a tool fastening hole extending from the tool rear face into the crushing tool and configured to fasten a fastening element. "Rear face" means the side of the crushing tool, in particular of the tool base body of the crushing tool, facing away from the cutting edge. This makes it possible to realize the crushing tool in a particularly advantageous way for simple and reliable connection to the rotor base element.

[0020] It is further proposed that the tool fastening holes are realized as blind holes with an internal thread, which makes it possible to realize the tool fastening holes in a particularly advantageous manner for simple connection of the demolition tool by means of fasteners realized as screws.

[0021] Furthermore, it is proposed that the crushing tool has at least one cutting edge arranged at the upper end of the tool front face of the crushing tool. Preferably, the cutting edge can be realized as an integral part of the tool base body of the crushing tool or as a separate cutting edge, in particular as a cutting edge made of hard metal. This cutting edge is firmly connected to the cutting edge receptacle of the tool base body by a material joint, preferably via a soldered connection. This makes it possible to realize the crushing tool in a particularly advantageous manner.

[0022] Furthermore, a crushing system with a crushing tool is proposed, which includes a rotor base element configured for rigid connection to the crushing rotor and having a rotor contact area at its front side, where the crushing tool is configured to adjoin the tool fastening area at least partially in a form-fitting manner. "Crushing system" preferably refers to a system of at least one rotor base element and a crushing tool that can be fastened thereto. "Rotor base element" preferably refers to an element that is fixedly and rigidly connected to the crushing rotor and configured for connection to a crushing tool that cannot be removed without being destroyed. Preferably, the crushing tool can be fixed indestructibly and removably to the rotor base element via a threaded connection. Preferably, the rotor base element is configured for rigid connection to the crushing rotor by a material bond, such as via a welded connection. By "rotor contact area" is preferably understood an area at least partially adjacent to the tool fastening area, which is preferably realized by the breaking tool as a tool fastening recess, and through which forces, in particular operating forces, are discharged (dissipated, dispersed) from the breaking tool to the rotor base element. The rotor contact area is realized corresponding to the fastening area. Preferably, the breaking tool is adjacent to the rotor contact area over a large portion of the tool fastening area or over the entire longitudinal extent of the tool fastening area. In principle, it is also conceivable that the breaking tool is adjacent to the rotor contact area only in a tool part area that occupies less than 50% of the longitudinal extent of the tool fastening area. Preferably, the breaking tool is adjacent to the rotor contact area at the side walls of the tool fastening area that form a tool wedge-shaped groove. The side walls of the tool fastening area of ​​the breaking tool preferably lie planarly on the corresponding realized surfaces of the rotor contact area. Preferably, the rotor contact area is realized with lateral surfaces that form a rotor wedge-shaped plateau, and thus corresponding to the tool fastening area that is realized as a tool wedge-shaped groove. It is also conceivable that, preferably, in the mounted state, only partial areas of the side walls of the tool fastening area which form the tool wedge-shaped groove adjoin the lateral surfaces of the rotor contact area.This advantageously makes it possible to provide a system in which the crushing tools can be attached to the crushing rotor particularly simply and securely via the rotor base element.

[0023] It is further proposed that the rotor contact area comprises a first rotor part area that is realized corresponding to the first tool part area of ​​the demolition tool and a second rotor part area that is realized corresponding to the second tool part area of ​​the demolition tool. The rotor part areas being realized correspondingly means that the areas, in particular the respective side walls of the tool fastening area of ​​the demolition tool and the lateral faces of the rotor contact area of ​​the rotor base element are realized so that they lie substantially planar with each other in the correctly mounted state in each case. Preferably, the side walls of the tool fastening area of ​​the demolition tool and the lateral faces of the rotor contact area of ​​the rotor base element have the same inclination relative to the longitudinal mid-plane in each case. Preferably, in at least one rotor part area, the side walls of the tool fastening area of ​​the demolition tool and the lateral faces of the rotor contact area of ​​the rotor base element have inclinations that differ by 0.5 to 1.5 degrees, and in the mounted state, the side walls of the tool fastening area and the lateral faces of the rotor contact area can be provided to be tensioned relative to each other to achieve a particularly firm and stable connection between the demolition tool and the rotor base element. In this way, the crushing tool can be connected to the rotor base element via the rotor contact area in a particularly simple and reliable manner.

[0024] It is further proposed that the rotor contact area comprises a second rotor part region that at least partially forms a rotor wedge-shaped elevation, the side of which comprises a second rotor wedge angle I that is at least greater than the first tool fastening hole angle B of the second tool part region of the crushing tool, preferably 0.1 to 3.5 degrees greater. Preferably, the side of the rotor wedge elevation of the second rotor part region comprises a second rotor wedge angle I that is 0.5 to 1.5 degrees greater, and in a particularly preferred exemplary embodiment, 1 degree greater. In this way, the crushing tool can be particularly advantageously tensioned in its connection to the rotor base element to ensure a particularly secure and rigid attachment of the crushing tool to the rotor base element.

[0025] It is also proposed that the second rotor part region of the rotor contact area has an area at its lower end that is smaller than the thickness of the crushing tool. As a result, the crushing tool only partially rests on the rotor base element, i.e., on the second rotor part region of the rotor contact area, with its tool underside forming the second tool part region of the tool fastening area. This makes it possible to realize the rotor base element in a particularly advantageous manner.

[0026] It is further proposed that, when the crushing tool is attached to the rotor base element, the crushing tool has an underside that protrudes beyond the second rotor part area of ​​the rotor contact area of ​​the rotor base element. Preferably, the area of ​​the underside of the crushing tool that protrudes beyond the rotor contact area of ​​the rotor base element is no longer part of the second tool part area of ​​the tool fastening recess of the crushing tool. As a result, in a particularly advantageous manner, the rotor base element is covered by the crushing tool in its rotor front area during operation and can therefore be protected. Advantageously, this makes it possible to achieve particularly advantageous wear protection for the crushing tool.

[0027] Furthermore, it is proposed that the rotor base element does not engage around the periphery of the crushing tool, which makes it possible to achieve particularly simple mounting and removal of the crushing tool onto / from the rotor base element.

[0028] The crushing tool according to the invention is not limited to the applications and embodiments described above, and in particular, in order to perform the functions described herein, the crushing tool according to the invention may have a different number of individual elements, components and units than those given herein.

[0029] Further advantages will become apparent from the following description of the drawings. Two exemplary embodiments of the invention are shown in the drawings. The drawings, the description, and the claims comprise a number of feature combinations. Those skilled in the art will deliberately consider the features individually and will find further advantageous combinations. [Brief explanation of the drawings]

[0030] [Figure 1] 1 is a schematic view of a crushing rotor according to the invention, equipped with a crushing system according to the invention, comprising a plurality of rotor base elements and crushing tools fastened (fixed) to the rotor base elements. [Figure 2] 1 shows a schematic view of a crushing system comprising a rotor base element and a crushing tool fastened to the rotor base element, in particular screwed thereto; [Figure 3] FIG. 2 is a cross-sectional view through the interface between the crushing tool and the rotor base element. [Figure 4] 1 is a schematic side view of a crushing tool according to the present invention; [Figure 5] 1 is a schematic rear view of a breaking tool according to the invention, having a tool fastening recess with two tool part regions, and depicting a second tool wedge angle G of the second tool part region; [Figure 6] 1 is a schematic perspective view from below of a crushing tool according to the invention, with a tool fastening recess comprising two tool part regions, and depicting a first tool wedge angle F of the first tool part region; [Figure 7] 2 is a schematic side view of a rotor base element according to the invention of a crushing system; [Figure 8] Schematic plan view of a rotor base element having a rotor contact area for the connection of a breaking tool. [Figure 9] Schematic perspective view from below of a rotor base element having a receiving area for connection of a crushing tool. [Figure 10] 10 is a schematic view of a crushing tool according to a second exemplary embodiment, with cutting blades realized integrally with the tool base body; DETAILED DESCRIPTION OF THE INVENTION

[0031] 1 to 9 show a first exemplary embodiment of a crushing tool 10 according to the invention for a crushing system 100 according to the invention. FIG. 1 shows a crushing rotor 12 according to the invention, which constitutes a crushing system 100 according to the invention with a plurality of crushing tools 10 according to the invention. Such a crushing rotor 12 is used in particular in attachment tools for commercial vehicles, in particular in mulching and / or shredding. The crushing rotor 12 is designed for crushing wood and / or soil. The crushing rotor 12 has a rotor base body (base body, base body) 14. The rotor base body 14 is embodied in the form of a roller. The rotor base body 14 is embodied in a tubular shape. The rotor base body 14 is preferably made of steel. The crushing system 100 comprises a plurality of rotor base elements 16, 18, 20. The rotor base elements 16, 18, 20 are fixedly attached to the crushing rotor 12. The rotor base elements 16, 18, 20 are preferably connected to the rotor base body 14 of the crushing rotor 12 by a material bond. The rotor base elements 16, 18, 20 are preferably welded to the crushing rotor 12. The rotor base elements 16, 18, 20 are preferably rigidly connected to the casing of the crushing rotor 12 via a welded connection.

[0032] A crushing tool 10 is connected to each rotor base element 16, 18, 20 of the crushing system 100. The crushing tool 10 is in each case fixedly connected to the crushing rotor 12 via a rotor base element 16, 18, 20. In the following, only one crushing tool 10 and the corresponding rotor base element 16 will be described in detail. The further crushing tools 10 are preferably embodied identically. However, it is also conceivable in principle that at least some of the further crushing tools 10 are embodied in a partly different way.

[0033] FIG. 2 shows an isometric view of the rotor base element 16 to which the crushing tool 10 is fixed. The crushing tool 10 is configured with a cutting edge 22. The cutting edge 22 is fixedly attached to the crushing tool 10. Preferably, the cutting edge 22 is connected to the crushing tool 10 by a material bond. In this exemplary embodiment, the cutting edge 22 is realized as a cutting edge made of hardened metal. The crushing tool 10 includes a tool base body 24. The tool base body 24 is made of metal. The tool base body 24 is preferably made of a forged part. The tool base body 24 forms a cutting edge receptacle 26. The cutting edge 22 is fixedly connected to the cutting edge receptacle 26 of the tool base body 24. The cutting edge 22 is fixed to the cutting edge receptacle 26 in a loss-proof manner. The cutting blades 22 are connected to the cutting blade receptacles 26 of the tool base body 24 by material bonding, preferably via soldering. In principle, it is also conceivable that the cutting blades 22 are fixed to the cutting blade receptacles 26 in a different loss-preventing manner. The tool base body 24 and the cutting blades 22 together form the breaking tool 10. In principle, it is also conceivable that the cutting blades 22 of the breaking tool 10 and the tool base body 24 are implemented as a single piece. The tool base body 24 and the cutting blades 22 are formed together from a single material, in particular from a blank (unprocessed material, blank). The tool base body 24 and the cutting blades 22 are realized together as a forged part. In principle, it is also conceivable that the tool base body 24 or the tool base body 24 and the cutting blades 22 together are realized as a milled part. Preferably, it is conceivable that the forged part forming the tool base body 24 and / or the cutting blades 22 can be re-machined by milling in a machining process.

[0034] The tool base body 24 of the crushing tool 10 has a tool front side 28. In the mounted state, the tool front side 28 faces away from the rotor base element 16. The tool base body 24 of the crushing tool 10 has a tool rear side 30. In the mounted state, the tool rear side 30 of the crushing tool 10 faces towards the rotor base element 16. The tool base body 24 of the crushing tool 10 has a tool upper side 32. In the mounted state, the tool upper side 32 of the crushing tool 10 faces away from the underside of the rotor base element 16, in particular the crushing rotor 12. The tool base body 24 of the crushing tool 10 has a tool lower side 34. In the mounted state, the lower tool face 34 of the crushing tool 10 faces the lower face of the rotor base element 16, in particular towards the crushing rotor 12. The cutting blades 22 of the crushing tool 10 are attached to a tool front face 28. The cutting blades 22 are attached to the tool front face 28 of the crushing tool 10 in an upper region adjacent to the tool upper face 32. The cutting blades 22 may protrude beyond the tool upper face 32 of the tool base body 24. The cutting blade receivers 26 are introduced into the tool base body 24 in an upper region of the tool front face 28 adjacent to the tool upper face 32.

[0035] The crushing tool 10 comprises a tool fastening area 36. The crushing tool 10 can be fastened to one of the rotor base elements 16, 18, 20 via the tool fastening area 36. The tool fastening area 36 is realized as a tool fastening recess. In the following, only the connection of the crushing tool 10 to one rotor base element 16 is described. The connection of the crushing tool 10 to further rotor base elements 18, 20 is realized in an equivalent manner. The crushing tool 10 can be coupled to the rotor base element 16 via the tool fastening area 36. In the mounted state, the crushing tool 10 is supported by the rotor base element 16 via the tool fastening area 36. The crushing tool 10 is form-fittingly coupled via the tool fastening area 36 in at least two directions, preferably in three or four directions. As a result of the form-fitting support via the tool fastening area 36, ​​the crushing tool 10 can be supported on the rotor base element 16 in two directions, preferably in three or four directions.

[0036] The tool fastening area 36 is arranged on the tool rear face 30 of the crushing tool 10. The tool fastening area 36 is arranged on the tool lower face 34 of the crushing tool 10. The tool fastening area 36 extends over a portion of the tool rear face 30 and a portion of the tool lower face 34 of the crushing tool 10. Preferably, the tool fastening area 36 extends from the upper end of the tool rear face 30 to the lower end of the tool rear face 30. Preferably, the tool fastening area 36 is realized continuously in the height direction, i.e., from the lower end to the upper end of the tool rear face 30. However, in principle, it is also conceivable that the tool fastening area 36 is not realized continuously, for example, not reaching the tool upper face 32 or the tool lower face 34. The tool fastening area 36 extends over at least a portion of the tool lower face 34. Preferably, the tool fastening area 36 extends from the rear end of the tool lower face 34 towards the tool front face 28 of the crushing tool 10.

[0037] The tool fastening area 36 preferably extends centrally on the tool rear face 30 of the crushing tool 10. The tool fastening area 36 preferably also extends towards the centre of the tool lower face 34. The tool fastening area 36 is preferably introduced laterally centrally into the crushing tool 10. The tool fastening area 36 is therefore particularly arranged centrally between the side walls of the crushing tool 10. The tool fastening area 36 preferably has a tool intermediate surface 88. The tool intermediate surface 88 of the tool fastening area 36 extends laterally towards the centre of the crushing tool 10. Preferably, the tool fastening area 36 extends laterally over substantially the entire width of the tool rear face 30. Preferably, the tool fastening area 36 likewise extends laterally over substantially the entire width of the tool lower face 34. In principle, it is also conceivable that the tool fastening area 36 does not extend across the entire lateral width of the tool rear face 30 and / or the tool lower face 34. It is conceivable here that the lateral regions of the tool rear face 30 and / or the tool lower face 34 are each at least partially free from the tool fastening region 36 .

[0038] The tool fastening area 36 is embodied elongately. The tool fastening area 36 of the demolition tool 10 has a longitudinal extent. The longitudinal extent of the tool fastening area 36 extends, at the tool mid-surface 88 of the tool fastening area 36, ​​from an upper end of the tool fastening area 36 at the tool rear face 30 to a lower end of the tool fastening area 36 at the tool lower face 34. The tool fastening area 36 comprises two partial areas (a first tool part area 38 and a second tool part area 40) in its longitudinal extent. The two partial areas (the first tool part area 38 and the second tool part area 40) are oriented obliquely relative to one another. Thus, the tool fastening area 36 is embodied at an angle in its longitudinal extent. The tool fastening area 36 has a bend (kink) in its longitudinal extent. The two partial regions of the tool fastening region 36 (first tool part region 38 and second tool part region 40) are preferably arranged on different sides of the demolition tool 10. The first tool part region 38 is arranged on the tool rear face 30. The first tool part region 38 is realized as at least one partial region of the tool rear face 30 of the demolition tool 10. The part of the tool fastening region 36 that is arranged on the tool rear face 30 of the demolition tool 10 forms the first tool part region 38 of the tool fastening region 36. The second tool part region 40 is arranged on the tool lower face 34. The second tool part region 40 is realized as at least one partial region of the tool lower face 34 of the demolition tool 10. The part of the tool fastening region 36 that is arranged on the tool lower face 34 of the demolition tool 10 forms the second tool part region 40 of the tool fastening region 36. The first tool part region 38 of the tool fastening region 36 is realized as a main support region. The first tool part area 38 has a larger extent than the second tool part area 40 of the tool fastening area 36. Preferably, the majority of the forces occurring during operation are borne via the first tool part area 38 by the corresponding rotor base element 16 and thus by the crushing rotor 12.

[0039] The first tool part area 38 and the second tool part area 40, which are oriented at an angle to one another, have a tool clamping angle A relative to one another that is greater than 90 degrees. Preferably, the two part areas of the tool clamping area 36 (the first tool part area 38 and the second tool part area 40) have a tool clamping angle A between 95 degrees and 120 degrees, preferably between 100 degrees and 115 degrees. Preferably, the two part areas of the tool clamping area 36 (the first tool part area 38 and the second tool part area 40) have a tool clamping angle A of 110 degrees.

[0040] The demolition tool 10 has a tool fastening hole 42. The tool fastening hole 42 is configured to connect the demolition tool 10 to the rotor base element 16. The tool fastening hole 42 is configured to receive a fastening member 102 for connecting the demolition tool 10 to the rotor base element 16. The tool fastening hole 42 is introduced into the tool base body 24 at the tool rear face 30 of the demolition tool 10. The tool fastening hole 42 extends from the tool rear face 30 into the tool base body 24. The tool fastening hole 42 is realized as a blind hole. The tool fastening hole 42 is not realized so as to continue to the tool front face 28. The tool fastening hole 42 has an internal tool thread 44. To fasten the demolition tool 10, the fastening member 102, for example, realized as a screw, can be screwed into the tool fastening hole 42 via the internal tool thread 44, thereby enabling a fixed connection. The tool fastening holes 42 are preferably arranged in the lower half of the tool rear face 30 of the demolition tool 10. The tool fastening holes 42 are introduced into the tool fastening region 36, in particular into the first tool part region 38 of the tool fastening region 36. In principle, it is also conceivable for the tool fastening holes 42 to be realized as through-holes that run continuously from the tool rear face 30 to the tool front face 28. In principle, it is also conceivable for the tool fastening holes 42 not to have an internal thread. The tool fastening holes 42 realized as through-holes are configured so that the fasteners 102 are guided through the tool fastening holes 42 for connection to the rotor base element 16, and a screw head or nut is adjacent to the tool front face 28 for connecting the demolition tool 10 to the rotor base element 16. The tool fastening holes 42 have a tool fastening hole longitudinal axis 46. The tool fastening hole longitudinal axis 46 is realized as the medial axis of the tool fastening holes 42. The tool fastener hole 42 extends along a tool fastener hole longitudinal axis 46 .

[0041] The first tool portion area 38 of the tool fastening area 36 has a first tool fastener hole angle B with the tool fastener hole longitudinal axis 46. The second tool portion area 40 of the tool fastening area 36 has a second tool fastener hole angle C with the tool fastener hole longitudinal axis 46. The first tool fastener hole angle B that the first tool portion area 38 of the tool fastening area 36 makes with the tool fastener hole longitudinal axis 46 is different from the second tool fastener hole angle C that the second tool portion area 40 of the tool fastening area 36 makes with the tool fastener hole longitudinal axis 46. The first tool portion area 38 of the tool fastening area 36 has a first tool fastener hole angle B between 65 degrees and 75 degrees with the tool fastener hole longitudinal axis 46. Preferably, the first tool fastener hole angle B that the first tool portion area 38 of the tool fastening area 36 makes with the tool fastener hole longitudinal axis 46 is 70 degrees. The second tool part region 40 of the tool fastening region 36 has a second tool fastening hole angle C between 35 and 45 degrees relative to the tool fastening hole longitudinal axis 46. Preferably, the second tool fastening hole angle C that the second tool part region 40 of the tool fastening region 36 has relative to the tool fastening hole longitudinal axis 46 is 40 degrees. Slight deviations from the exact angle specification of different angles are possible, especially due to manufacturing tolerances.

[0042] The crushing tool 10 has a cutting edge movement direction 104. The cutting edge movement direction 104 is realized as a direction in which the cutting edges 22 of the crushing tool 10 move during operation. The first tool part region 38 has a first cutting edge movement angle D relative to the cutting edge movement direction 104 of between 79 and 89 degrees. Preferably, the first cutting edge movement angle D between the cutting edge movement direction 104 and the first tool part region 38 is 84 degrees. The second tool part region 40 has a second cutting edge movement angle E between 9 and 19 degrees relative to the cutting edge movement direction 104. Preferably, the second cutting edge movement angle E between the cutting edge movement direction 104 and the second tool part region 40 is 14 degrees.

[0043] The tool fastening region 36 is at least partially embodied as a tool wedge groove. The tool fastening region 36 is at least partially embodied as a first tool wedge groove in its first tool part region 38. The tool fastening region 36 comprises at least one region in its first tool part region 38 in which the tool fastening region 36 is embodied as a first tool wedge groove. Preferably, the region in which the tool fastening region 36 is embodied as a first tool wedge groove can extend over the entire first tool part region 38. However, it is also conceivable in principle for only a portion of the tool fastening region 36, for example less than 50%, to be present in the first tool part region 38 embodied as a first tool wedge groove. Preferably, it is also conceivable for the tool fastening region 36 to be embodied as a first tool wedge groove in several regions in the first tool part region 38 that are arranged at a distance from one another. In at least one region of the first tool part region 38, the tool clamping region 36 is realized as a first tool wedge groove. The first tool wedge sidewalls 48, 50 of the tool clamping region 36 are arranged at an angle to one another. The first tool wedge sidewalls 48, 50 preferably extend over the entire longitudinal extent of the first tool part region 38 of the tool clamping region 36. In principle, several pairs of first tool wedge sidewalls 48, 50 are conceivable, but they are spaced apart and only partially realize the tool clamping region 36 as a first tool wedge groove. In the remaining regions, the tool clamping region 36 can have sidewalls of any shape, for example, at different angles to one another. The first tool wedge side walls 48, 50 have a first tool wedge angle F relative to each other between 130 degrees and 140 degrees. Preferably, the first tool wedge side walls 48, 50 have a first tool wedge angle F relative to each other of 135 degrees.

[0044] The tool fastening region 36 is configured with at least one region in its second tool part region 40 in which the tool fastening region 36 is realized as a second tool wedge groove. Preferably, the region in which the tool fastening region 36 is realized as a second tool wedge groove can extend over the entire second tool part region 40. However, it is also conceivable in principle that only a portion of the tool fastening region 36 in the second tool part region 40, for example less than 50%, is realized as a second tool wedge groove. Preferably, it is also conceivable that the tool fastening region 36 is realized as a second tool wedge groove in several regions in the second tool part region 40 that are spaced apart from one another. In at least one region in the second tool part region 40 that is realized as a second tool wedge groove, the tool fastening region 36 is configured with two second tool wedge side walls 52, 54 that are arranged at a second tool wedge angle G with respect to one another. The second tool wedge side walls 52, 54 of the tool fastening region 36 are oriented obliquely toward one another. The second tool wedge side walls 52, 54 preferably extend over the entire longitudinal extent of the second tool part region 40 of the tool fastening region 36. In principle, several pairs of second tool wedge side walls 52, 54 are conceivable, but they are spaced apart from one another, realizing the tool fastening region 36 only in a region as a second tool wedge groove. In the remaining region, the tool fastening region 36 can have side walls of any shape, for example, with different angles. The first tool wedge side walls 48, 50 and the second tool wedge side walls 52, 54 of the tool wedge grooves of the two tool part regions (the first tool part region 38 and the second tool part region 40) have different first and second tool wedge angles F and G. The second tool wedge sidewalls 52, 54 of the second tool part region 40 have a second tool wedge angle G that is different from the first tool wedge sidewalls 48, 50 of the first tool part region 38. The second tool wedge sidewalls 52, 54 have a second tool wedge angle G relative to one another that is between 162 degrees and 172 degrees. Preferably, the second tool wedge sidewalls 52, 54 have a second tool wedge angle G relative to one another that is 167 degrees.

[0045] The rotor base element 16 is configured to be rigidly connected to the crushing rotor 12. Preferably, the rotor base element 16 is fixedly and rigidly welded to the rotor base body 14 of the crushing rotor 12 by a welded connection. The rotor base element 16 is preferably realized as an elongated element. The rotor base element 16 has a rotor underside 56, which faces towards the crushing rotor 12. At its rotor underside 56, the rotor base element 16 is welded so that it faces towards the rotor base body 14 of the crushing rotor 12. To this end, the rotor underside 56 of the rotor base element 16 preferably has a shape that corresponds to the outer contour of the rotor base body 14. The rotor base element 16 has a rotor upper side 58 facing away from the crushing rotor 12. The rotor base element 16 has a rotor rear side 60, which faces away from the operating rotation direction of the crushing rotor 12. The rotor base element 16 therefore has a rotor rear face 60 facing away from the cutting edge movement direction 104. The rotor base element 16 has a rotor front face 62. The rotor front face 62 of the rotor base element 16 faces in the operating rotation direction of the crushing rotor 12. The rotor base element 16 is preferably made of metal. The rotor base element 16 is preferably realized as a forged part.

[0046] The rotor base element 16 has a rotor contact area 64 on its rotor front face 62. The rotor contact area 64 is configured so that the crushing tool 10 having the tool fastening area 36 adjoins it at least partially in a form-fitting manner. The rotor contact area 64 is configured to connect the crushing tool 10 in a form-fitting manner. In the mounted state, the crushing tool 10 is connected to the rotor base element 16 and thus to the crushing rotor 12 via the rotor contact area 64. The rotor contact area 64 is realized to correspond to the tool fastening area 36 of the crushing tool 10.

[0047] The rotor base element 16 has rotor fastening holes 66. The rotor fastening holes 66 have rotor fastening hole longitudinal axes 74. In the mounted state, the rotor fastening hole longitudinal axes 74 of the rotor fastening holes 66 are aligned coaxially with the tool fastening hole longitudinal axes 46 of the tool fastening holes 42 of the demolition tool 10. The rotor fastening holes 66 are configured for fixing the demolition tool 10 in the rotor contact area 64. The rotor fastening holes 66 are configured to guide fasteners 102 therethrough. The rotor fastening holes 66 are realized as through-holes. The rotor fastening holes 66 extend from the rotor front face 62 of the rotor base element 16 to the rotor rear face 60. The rotor fastening holes 66 are arranged in the region of the rotor contact area 64. Since the rotor fastening holes 66 are realized as simple through-holes, they do not have an internal thread. The rotor base element 16 has a rotor support surface 68 on its rotor rear face 60 in the region of the rotor fastening bores 66. For fastening the crushing tool 10, fasteners 102 embodied as screws can be supported with their screw heads on the rotor support surface 68. In principle, it is also conceivable for the rotor fastening bores 66 of the rotor base element 16 to be embodied as blind holes with internal threads and for the tool fastening bores 42 of the crushing tool 10 to be embodied as through holes. To fasten the crushing tool 10 to the rotor base element 16, the fasteners 102 embodied as screws are guided from the tool front face 28 of the crushing tool 10 through the tool fastening bores 42 of the crushing tool 10, which are embodied as through holes. In this case, the fasteners 102 are screwed into the rotor fastening bores 66 of the rotor base element 16, which have internal threads.

[0048] The rotor contact area 64 of the rotor base element 16 is realized to be substantially L-shaped. The rotor contact area 64 comprises a first rotor part area 70. The first rotor part area 70 of the rotor contact area 64 of the rotor base element 16 is realized to correspond to the first tool part area 38 of the tool fastening area 36 of the demolition tool 10. The rotor contact area 64 comprises a second rotor part area 72. The second rotor part area 72 of the rotor contact area 64 of the rotor base element 16 is realized to correspond to the second tool part area 40 of the tool fastening area 36 of the demolition tool 10. The two rotor part areas (the first rotor part area 70 and the second rotor part area 72) are arranged obliquely relative to one another. The first rotor part area 70 and the second rotor part area 72 have a rotor contact angle J that corresponds to the tool fastening angle A between the first tool part area 38 and the second tool part area 40 of the tool fastening area 36. The first rotor part area 70 of the rotor contact area 64 has a first rotor fastening hole angle K with the rotor fastening hole longitudinal axis 74 of the rotor fastening hole 66 of the rotor base element 16. The first rotor fastening hole angle K is preferably between 65 degrees and 75 degrees, in particular 70 degrees. The first rotor fastening hole angle K that the first rotor part area 70 of the rotor contact area 64 of the rotor base element 16 makes with the rotor fastening hole longitudinal axis 74 of the rotor fastening hole 66 corresponds to the first tool fastening hole angle B that the first tool part area 38 of the tool fastening area 36 of the crushing tool 10 makes with the tool fastening hole longitudinal axis 46. The second rotor part area 72 of the rotor contact area 64 has a second rotor fastening hole angle L with the rotor fastening hole longitudinal axis 74 of the rotor fastening hole 66 of the rotor base element 16. The second rotor fastening hole angle L is preferably between 35 degrees and 45 degrees, in particular 40 degrees. The second rotor fastening hole angle L that the second rotor part area 72 of the rotor contact area 64 of the rotor base element 16 makes with the rotor fastening hole longitudinal axis 74 of the rotor fastening hole 66 corresponds to the second tool fastening hole angle C that the second tool part area 40 of the tool fastening area 36 of the crushing tool 10 makes with the tool fastening hole longitudinal axis 46.

[0049] The rotor contact area 64 is realized as at least one rotor wedge-shaped plateau. This rotor wedge-shaped plateau is formed corresponding to the tool fastening area 36, ​​which is realized as a tool wedge-shaped groove. A first rotor part area 70 of the rotor contact area 64 is oriented forward, away from the rotor rear face 60 of the rotor base element 16. The first rotor part area 70 of the rotor contact area 64 is realized as a first rotor wedge-shaped plateau. The first rotor part area 70 has a first rotor side surface 76 and a second rotor side surface 78. The first rotor side surface 76 and the second rotor side surface 78 are oriented at an angle to each other. The first rotor side surface 76 and the second rotor side surface 78 of the first rotor part area 70 are oriented away from each other. The two rotor side surfaces (first rotor side surface 76 and second rotor side surface 78) are oriented laterally outward in each case. The two rotor side surfaces (first rotor side surface 76 and second rotor side surface 78) have a first rotor wedge angle H relative to each other. The two rotor side surfaces (first rotor side surface 76 and second rotor side surface 78) have a first rotor wedge angle H between 130 degrees and 140 degrees relative to each other. The first rotor wedge angle H between the first rotor side surface 76 and the second rotor side surface 78 is preferably 135.5 degrees. The first rotor wedge angle H between the two rotor side surfaces (first rotor side surface 76 and second rotor side surface 78) of the first rotor part region 70 of the rotor contact area 64 is realized to correspond to the first tool wedge angle F between the first tool wedge side walls 48, 50 of the first tool part region 38 of the tool fastening area 36. The first rotor wedge-shaped pedestal has a first rotor web 80 between the two rotor side surfaces (first rotor side surface 76 and second rotor side surface 78). The first rotor web 80 preferably has a width between 2 mm and 8 mm, preferably about 5 mm.

[0050] The second rotor part region 72 of the rotor contact area 64 is oriented upward, away from the rotor underside 56 of the rotor base element 16. The second rotor part region 72 of the rotor contact area 64 is located at the lower end of the first rotor part region 70. Viewed opposite the cutting edge movement direction 104, the second rotor part region 72 of the rotor contact area 64 is located in front of the first rotor part region 70. The second rotor part region 72 of the rotor contact area 64 is realized as a second rotor wedge-shaped plateau. The second rotor part region 72 has a first rotor side surface 82 and a second rotor side surface 84. The first rotor side surface 82 and the second rotor side surface 84 are oriented obliquely relative to each other. The first rotor side surface 82 and the second rotor side surface 84 of the second rotor part region 72 are oriented away from each other. The two rotor side surfaces (the first rotor side surface 82 and the second rotor side surface 84) are each oriented laterally outward. The two rotor flanks (first rotor flank 82 and second rotor flank 84) have a second rotor wedge angle I relative to one another. The two rotor flanks (first rotor flank 82 and second rotor flank 84) have a second rotor wedge angle I relative to one another between 162 degrees and 172 degrees. The second rotor wedge angle I formed by the first rotor flank 82 and the second rotor flank 84 is preferably 168 degrees. The second rotor wedge angle I formed by the two rotor flanks (first rotor flank 82 and second rotor flank 84) of the second rotor part region 72 of the rotor contact area 64 is preferably realized to be between 0.1 degrees and 3.5 degrees larger than the second tool wedge angle G formed by the second tool wedge side walls 52, 54 of the second tool part region 40 of the tool fastening area 36. The second rotor wedge angle I provided by the two rotor side surfaces (first rotor side surface 82 and second rotor side surface 84) of the second rotor part area 72 of the rotor contact area 64 is preferably realized to be 0.5 degrees larger than the second tool wedge angle G provided by the second tool wedge side walls 52, 54 surrounding the second tool wedge-shaped groove of the second tool part area 40 of the tool fastening area 36.As a result, during assembly, the second tool wedge side walls 52, 54, which form the second tool wedge-shaped groove in the second tool part area 40 of the tool fastening area 36, ​​are subjected to tension forces from the first rotor side surface 82 and the second rotor side surface 84 of the second rotor part area 72 of the rotor contact area 64. This allows the crushing tool 10 to be attached particularly reliably to the rotor base element 16. As a result of tightening the fastening elements 102, which are realized as screws, the second tool part area 40 of the tool fastening area 36 is subjected to tension forces from the second rotor part area 72 of the rotor contact area 64. The second rotor wedge-shaped ledge comprises a second rotor web 86 between the two rotor sides (the first rotor side surface 82 and the second rotor side surface 84). The second rotor web 86 preferably has a width between 2 mm and 8 mm.

[0051] The second rotor part area 72 of the rotor contact area 64 preferably has an extent that is smaller than the thickness of the crushing tool 10, in particular the thickness of the crushing tool 10 at its lower end. As a result, when the crushing tool 10 is attached to the rotor base element 16, the tool underside 34 of the crushing tool 10 protrudes beyond the second rotor part area 72 of the rotor contact area 64 of the rotor base element 16. This protrusion of the tool underside 34 makes it possible to provide wear protection, in particular for the rotor base element 16, which, in contrast to the crushing tool 10, cannot be easily replaced.

[0052] FIG. 10 shows a second exemplary embodiment of a demolition tool 10 according to the invention. In contrast to the first exemplary embodiment, the demolition tool 10 has cutting edges 22 that are integrally realized with the tool base body 24 of the demolition tool 10. The cutting edges 22 are realized together with the tool base body 24. The demolition tool 10 is formed by integrally forming the cutting edges 22 and the tool base body 24 as a forged tool. The tool fastening area 36 is realized in the manner described above for the demolition tool 10 in the first exemplary embodiment. Therefore, it will not be described in detail here. In principle, it is also conceivable that the demolition tool 10 has different embodiments of the cutting edges in further exemplary embodiments. In principle, it is also conceivable that the demolition tool 10 has two or more cutting edges. The number and embodiment of the cutting edges are independent of the embodiment of the tool fastening area 36 and of the manner in which the demolition tool 10 is connected to the rotor base elements 16, 18, 20. [Explanation of symbols]

[0053] 10...Crushing tool. 12...Crushing rotor. 14...Rotor base body. 16...Rotor base element. 18...Rotor base element. 20...Rotor base element. 22...Cutting blade. 24...Tool base body. 26...Cutting blade receptacle. 28...Tool front surface. 30...Tool rear surface. 32...Tool upper surface. 34...Tool lower surface. 36...Tool fastening area. 38...First tool part area. 40...Second tool part area. 42...Tool fastening hole. 44...Tool internal thread. 46...Tool fastening hole longitudinal axis. 48...First tool wedge side wall. 50...First tool wedge side wall. 52...Second tool wedge side wall. 54...Second tool wedge side wall. 56...Lower rotor surface. 58...Rotor upper surface. 60...Rotor rear surface. 62...Rotor front surface. 64...Rotor contact area. 66...Rotor fastening hole. 68...Rotor support surface. 70...First rotor part area. 72...Second rotor part area. 76...First rotor side surface. 78...Second rotor side surface. 80...Rotor web. 82...First rotor side surface. 84...Second rotor side surface. 86...Rotor web. 88...Tool intermediate surface. 100...Crushing system. 102...Fastening member. 104...Cutting edge movement direction. A...Tool fastening angle (first tool partial area / second tool partial area). B...First tool clamping hole angle (first tool part area / longitudinal axis of tool clamping hole). C...Second tool clamping hole angle (second tool part area / tool ​​clamping hole longitudinal axis). D...First cutting edge movement angle (first tool partial area / cutting blade movement direction). E...Second cutting edge movement angle (second tool partial area / cutting blade movement direction). F...First tool wedge angle (groove / first tool part area). G...Second tool wedge angle (groove / second tool part area). H...First rotor wedge angle (high ground / first rotor partial area). I...Second rotor wedge angle (high ground / second rotor partial area). J...rotor contact angle (first rotor part area / second rotor part area of ​​rotor contact area of ​​rotor base element). K...First rotor fastening hole angle (first rotor partial area / first rotor fastening hole longitudinal axis). L...Second rotor fastening hole angle (second rotor partial area / second rotor fastening hole longitudinal axis).

Claims

1. A crushing tool for a crushing rotor (12), in particular for crushing wood and / or soil, comprising: The breaking tool comprises at least one cutting edge (22) and at least one tool fastening area (36); At least one of the tool fastening areas (36) is preferably realized at least partially as a tool fastening recess, and the tool fastening area (36) comprises in the longitudinal direction a first tool part area (38) and a second tool part area (40) as two tool part areas (38, 40) oriented at an angle to one another, the first tool part area (38) and the second tool part area (40) have a tool clamping angle (A) greater than 90 degrees; Crushing tools.

2. the first tool part area (38) and the second tool part area (40) are at an angle to each other of between 95 and 120 degrees, preferably between 100 and 115 degrees; The crushing tool according to claim 1 .

3. The fracturing tool further comprises a tool fastening hole longitudinal axis (46); the first tool part region (38) has a first tool fastener hole angle (B) with the tool fastener hole longitudinal axis (46) that is different from a second tool fastener hole angle (C) provided by the tool fastener hole longitudinal axis (46) and the second tool part region (40); The crushing tool according to claim 1 or 2.

4. The fracturing tool further comprises a tool fastening hole longitudinal axis (46); the first tool part region (38) has a first tool fastener hole angle (B) with the tool fastener hole longitudinal axis (46) of between 65 degrees and 75 degrees; The crushing tool according to any one of claims 1 to 3.

5. The fracturing tool further comprises a tool fastening hole longitudinal axis (46); the second tool part region (40) has a second tool fastener hole angle (C) with the tool fastener hole longitudinal axis (46) of between 35 degrees and 45 degrees; The crushing tool according to any one of claims 1 to 4.

6. the first tool part area (38) is formed as a main support area having a larger extent than the second tool part area (40), The crushing tool according to any one of claims 1 to 5.

7. the first tool part area (38) is formed as at least one part area of ​​the tool rear face (30) of the crushing tool (10); The crushing tool according to any one of claims 1 to 6.

8. the second tool part area (40) is formed as at least one part area of ​​the tool underside (34) of the crushing tool (10); The crushing tool according to any one of claims 1 to 7.

9. The crushing tool further comprises a cutting edge movement direction (104), the first tool part region (38) has a first cutting edge movement angle (D) of between 79 and 89 degrees relative to the cutting edge movement direction (104); The crushing tool according to any one of claims 1 to 8.

10. The crushing tool further comprises a cutting edge movement direction (104), the second tool part region (40) has a second cutting edge movement angle (E) of between 9 degrees and 19 degrees relative to the cutting edge movement direction (104); The crushing tool according to any one of claims 1 to 9.

11. the tool fastening area (36) is at least partially realized as a tool wedge groove having side walls (48, 50, 52, 54) arranged at a first tool wedge angle (F) or a second tool wedge angle (G) in the range of 130 degrees to 172 degrees relative to one another; The crushing tool according to any one of claims 1 to 10.

12. the tool fastening area (36) is realized at least partially as a tool wedge groove in each of the two tool part areas (38, 40), the side walls (48, 50, 52, 54) of the tool wedge groove have first and second tool wedge angles (F, G) which are different from each other in the two tool part regions (38, 40); A crushing tool according to any one of claims 1 to 11.

13. The breaking tool further comprises a tool fastening hole (66) extending from the tool rear face (30) into the breaking tool (10); The tool fastening hole (66) is configured to fasten a fastening member (102). A crushing tool according to any one of claims 1 to 12.

14. A crushing system (100) comprising a crushing tool (10) according to any one of claims 1 to 13, The crushing system (100) comprises rotor base elements (16, 18, 20) configured for rigid connection to the crushing rotor (12); the rotor base element (16, 18, 20) has a rotor contact area (64) on a rotor front surface (62) configured to at least partially form-fit adjacent to the tool fastening area (36) of the crushing tool (10); Crushing system.

15. The rotor contact area (64) a first rotor part area (70) realized corresponding to the first tool part area (38) of the crushing tool (10); a second rotor part area (72) realized corresponding to the second tool part area (40) of the crushing tool (10); Equipped with The crushing system of claim 14.

16. the rotor contact area (64) comprises a second rotor part area (72) at least partially forming a wedge-shaped ridge; The sides (82, 84) of the wedge-shaped ridge have a second rotor wedge angle (I) that is minimally greater, preferably 0.1 to 3.5 degrees greater, than a second tool fastening hole angle (C) of the second tool part region (40) of the tool fastening region (36) of the fracturing tool (10).

16. The crushing system of claim 15.

17. a second rotor part area (72) of the rotor contact area (64) having an extent smaller than the thickness of the crushing tool (10); The crushing system according to any one of claims 14 to 16.

18. When the crushing tool (10) is attached to the rotor base element (16, 18, 20), a tool lower surface (34) of the crushing tool (10) protrudes beyond a second rotor part area (72) of the rotor contact area (64) of the rotor base element (16, 18, 20). A crushing system according to any one of claims 14 to 17.

19. The rotor base elements (16, 18, 20) do not engage around the crushing tool (10). A crushing system according to any one of claims 14 to 18.

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