Rotor disk for a chopper rotor

Abstract

The invention relates to a rotor disc (1), in particular a chipping rotor disc, for a chipping rotor (13), in particular a wood chipping rotor, for chipping wood to produce wood chips, with at least one movable displacement unit (4) by means of which a cutting length can be set. The at least one displacement unit (4) is displaceable in a displacement direction (8) that is oriented transversely, in particular perpendicularly, to a radial direction (7) of the rotor disc (1).

Description

[0001] The present invention relates to a rotor disc, in particular a chipping rotor disc, for a chipping rotor, in particular a wood chip rotor, for chipping wood for the production of wood chips, with at least one movable displacement unit by means of which a cutting length can be set.

[0002] German patent DE 20 2014 009 164 U1 discloses a chipping rotor for shredding wood to produce wood chips. Spacers are used to increase the support surface and adjust the cutting length.

[0003] The object of the present invention is therefore to achieve a simple adjustment of the cutting length with a sliding unit, wherein the sliding unit is arranged in a stable manner.

[0004] The problem is solved by a rotor disk, a chopping rotor, a displacement unit, and / or the use of the displacement unit with the features of the independent claims. Advantageous or preferred embodiments are each the subject of a corresponding dependent claim.

[0005] A rotor disc, specifically a chipping rotor disc, is proposed for a chipping rotor, particularly a wood chipping rotor, for shredding wood to produce wood chips. Such chipping rotors with the rotor disc are used to shred tree trunks and large branches, and thus to produce wood chips. These chipping rotors with the rotor disc are particularly suitable for use in forestry operations. For example, tree trunks can be shredded directly in or near the forest using these chipping rotors. The resulting wood chips can be loaded onto a truck or container and transported for further processing.

[0006] The rotor disc includes at least one movable shifting unit, which allows the cutting length to be adjusted. By adjusting or shifting this unit, the cutting length can be flexibly adapted, resulting in the variable production of larger or smaller wood chips. This increases the versatility of the chipping rotor and enables better adaptation to different requirements.

[0007] Furthermore, at least one sliding unit is movable in a direction oriented transversely to a radial direction of the rotor disc. The direction of movement can also be oriented perpendicular to the radial direction, allowing the sliding unit to be moved perpendicular to the radial direction. This orientation enables precise adjustment of the distance between the rotor disc or disc body and the sliding unit. The transverse movement allows the sliding unit to remain in contact with the rotor disc or a disc body of the rotor disc, thus increasing stability. The cutting length is adjusted by moving the sliding unit towards or away from a blade when the rotor disc is equipped with at least one blade for shredding the wood. The blade can be positioned directly or indirectly on the rotor disc and / or a blade holder on the rotor disc.

[0008] It is advantageous if the displacement direction is oriented parallel to a tangential direction of the rotor disk. Additionally or alternatively, it is advantageous if the displacement direction is oriented transversely, particularly perpendicularly, to an axial direction of the rotor disk. A tangential displacement direction facilitates the operation and adjustment of the displacement unit, thereby increasing the efficiency of the chipping process. Furthermore, this ensures that the displacement unit remains stably attached to the rotor disk or disk body and / or maintains contact, even during displacement. In this case, the displacement unit may not be moved along a tangent, but rather the displacement direction may be parallel to a tangent. It is advantageous if the displacement unit is located within a circular disk defined by the rotor disk.

[0009] An advantageous embodiment of the invention is that the rotor disk has at least one sliding surface oriented transversely, in particular perpendicularly, to the radial and / or axial direction, and along which the at least one sliding unit is displaceable. This ensures stable and uniform movement of the sliding unit, which improves the accuracy in setting the cutting length. The uniform load also increases the service life of the rotor disk.

[0010] It is advantageous if at least one sliding unit has a support surface by means of which the sliding unit rests on the sliding surface. The support surface ensures stable positioning of the sliding unit, which reduces vibrations and enables more precise cutting length adjustment. Furthermore, the sliding unit rests stably on the support surface. The support surface can slide over the sliding surface when the sliding unit is moved, so that even during movement, the sliding unit remains in contact with the rotor disk or disk body.

[0011] Furthermore, it is advantageous if the bearing surface and the sliding surface are designed to correspond to each other. This results in smooth movement of the sliding unit and minimizes wear, thus extending maintenance intervals. The two surfaces lie flat against each other, ensuring that the sliding unit rests stably on the rotor disk or disk body.

[0012] Furthermore, it is advantageous if the support surface and the sliding surface, particularly when the sliding unit is moved, at least partially, and preferably completely, abut each other and / or remain in contact. A continuous contact surface improves the stability and precision of the sliding unit and ensures a uniform load distribution across the components, thus extending their service life.

[0013] Advantageously, the sliding surface is oriented along a chord of the rotor disk. This allows the sliding unit to be moved transversely to the radial direction along the sliding surface.

[0014] According to an advantageous embodiment of the invention, the displacement surface is at least partially straight. Additionally or alternatively, it is advantageous if the displacement surface is at least partially curved. The straight and / or curved sections allow adaptation to different requirements, thereby optimizing the efficiency of the chopping process. Furthermore, this allows a specific displacement path to be formed for the displacement unit. The displacement unit can thus be moved in a straight line and / or along an arc or a curved path.

[0015] It is advantageous if at least one shifting unit can be moved along a secant and / or a circular arc of the rotor disc. This offers greater flexibility in positioning the shifting unit and allows for more precise adjustment of the cutting length, which improves the quality of the wood chips.

[0016] It is advantageous if at least one of the sliding units has an outer surface located on the side of the sliding unit opposite the support surface. The wood slides over this outer surface towards the blade when the blade is inserted into the rotor disc. Moving the sliding unit also moves the outer surface and / or a section of it, so that the cutting length is set through the interaction between the outer surface and / or a section of it and the blade.

[0017] An advantageous embodiment of the invention is that the outer surface is curved and / or has a radius of curvature equal to that of the rotor disc. A curved outer surface that corresponds to the radius of curvature of the rotor disc ensures a better fit and stability, which increases the accuracy of the cuts. Since the rotor disc rotates during operation, the curved outer surface provides smooth and consistent cutting action as the wood slides across the outer surface towards the blade.

[0018] It is advantageous if the rotor disc includes a sliding mechanism by means of which at least one sliding unit can be moved. An integrated sliding mechanism simplifies the operation and adjustment of the sliding unit, thereby reducing the time and effort required to adjust the cutting length. The sliding mechanism also enables automated movement of the sliding unit.

[0019] According to an advantageous embodiment of the invention, the displacement mechanism comprises at least one displacement element by means of which the displacement unit can be displaced. The displacement unit can be displaced by means of the at least one displacement element.

[0020] It is advantageous if at least one of the sliding elements is movable, particularly in the radial direction. Additionally or alternatively, it is advantageous if at least one of the sliding elements is guided, particularly transversely to the radial direction. A movable sliding element in the radial direction allows for a space-saving design of the sliding mechanism. Guidance transverse to the radial direction increases the stability and accuracy of the movement of the sliding element and, consequently, a stable and precise displacement of the sliding unit.

[0021] It is advantageous if the sliding unit has at least one recess in which at least one sliding element is arranged. A recess for the sliding element allows for a compact and space-saving design, which facilitates handling and maintenance. This also protects the sliding element from dirt, ensuring consistently precise and stable movement of the sliding unit.

[0022] It is advantageous if the at least one sliding element comprises an inclined surface. Additionally or alternatively, it is advantageous if a sliding surface is arranged in the at least one recess. Preferably, the inclined surface can be brought into contact with the sliding surface. An inclined surface and a sliding surface facilitate the movement of the sliding unit and reduce friction, which increases the efficiency and precision of the adjustment mechanism.

[0023] Furthermore, it is advantageous if the inclined surface is arranged at an angle to the radial direction. Additionally or alternatively, it is advantageous if the sliding surface is arranged at an angle to the radial direction. The inclined inclined surface and / or inclined sliding surface allows the radial movement of the at least one sliding element to be converted into a displacement of the sliding unit transversely to the radial direction. The inclined inclined surface and / or inclined sliding surface thus serves as a deflection device that converts the radial movement of the at least one sliding element into a displacement of the sliding unit transversely to the radial direction.

[0024] It is advantageous if at least one sliding element can be moved against at least one sliding surface, so that the

[0025] The sliding unit moves in the direction of travel. This allows the inclined surface to be pressed against the sliding surface, so that the sliding surface is pushed sideways, thus moving the sliding unit.

[0026] Advantageously, the shifting unit comprises a first and a second recess, with each recess corresponding to a shifting element. Two recesses, each with a shifting element, provide symmetrical and stable movement of the shifting unit, increasing the accuracy and efficiency of the chopping process. Furthermore, both shifting elements can be moved independently of each other. This makes it possible, for example, for one shifting element to move radially outward and the other radially inward. This allows one shifting element to be released by breaking contact between a sloping surface and the corresponding sliding surface. The other shifting element can then be used to move the shifting unit.

[0027] It is advantageous if the sliding unit comprises a wedge element on which at least one slip surface is arranged. Preferably, both slip surfaces are arranged on the wedge element. A wedge element with slip surfaces arranged on both sides enables a uniform distribution of forces and reduces wear, which increases the service life of the sliding unit.

[0028] Furthermore, it is advantageous if the wedge element is positioned between the two recesses. The central positioning of the wedge element ensures a balanced force distribution and improves the stability of the sliding unit during operation.

[0029] It is advantageous if the displacement mechanism and / or the displacement unit includes at least one counter element by means of which the at least one displacement element is guided transversely to the radial direction. A counter element provides additional guidance and stability, which increases the precision and reliability of the cutting length setting.

[0030] Preferably, at least one counter element is arranged in the recess. Arranging the counter element in the recess allows for a compact design and improves the handling and maintenance of the system.

[0031] It is advantageous if the displacement mechanism and / or the displacement unit comprises at least one retaining element, in particular a retaining screw, by means of which the displacement unit is held on the rotor disk, in particular on a disk body of the rotor disk. A retaining element such as a retaining screw ensures secure fixation of the displacement unit, which increases the stability and precision during the displacement process of the displacement unit.

[0032] It is advantageous if the sliding unit includes a retaining recess in which the retaining element is at least partially positioned. A retaining recess for the retaining element allows for simple and secure attachment of the sliding unit, which facilitates maintenance and adjustment. Furthermore, the retaining element is protected from dirt.

[0033] Furthermore, it is advantageous if the displacement mechanism includes at least one actuator by means of which the at least one displacement element can be moved, particularly in the radial direction. An actuator for moving the displacement element enables precise and easy adjustment of the cutting length, which increases the efficiency and quality of the chopping process.

[0034] It is advantageous if the displacement mechanism comprises a first and a second actuator, with the first actuator moving a first displacement element and the second actuator moving a second displacement element. Two actuators enable precise control of the displacement unit, which improves the accuracy and flexibility of the cutting length adjustment. The two actuators allow the displacement elements to be moved independently of each other. This also allows the displacement elements to be moved in opposite directions, so that the displacement unit can be moved left or right, or towards or away from the blade.

[0035] Advantageously, at least one actuator is a hydraulic actuator. A hydraulic actuator offers powerful and precise control of the moving unit, which increases the efficiency and reliability of the moving process.

[0036] It is advantageous if at least one actuator includes an actuator shaft on which the displacement element is arranged. An actuator shaft enables a direct and stable connection between the actuator and the displacement element, which increases the accuracy of the movements.

[0037] Furthermore, the rotor disc includes at least one blade holder for mounting a blade used to shred the wood. The blade holder allows for either direct or indirect mounting of the blade. It ensures a secure and stable attachment of the blade, thereby increasing the efficiency and quality of the shredding process. For example, a blade can be positioned between two rotor discs, thus spanning the area between them. Alternatively, or in addition, each rotor disc can also have at least one blade.

[0038] Furthermore, a chipping rotor for shredding wood to produce wood chips is proposed, comprising at least one rotor disc, wherein the rotor disc is preferably designed according to the preceding and / or following description, wherein the aforementioned features may be present individually or in any combination.

[0039] The proposed displacement unit for a rotor disk of a chopper rotor is also described, wherein the displacement unit has at least one feature mentioned in the preceding and / or following description relating to the displacement unit.

[0040] It is also proposed to use the displacement unit for a rotor disc of a chopper rotor, which is designed according to the preceding and / or following description, whereby the mentioned features may be present individually or in any combination.

[0041] Further advantages of the invention are described in the following exemplary embodiments. These show: Figure 1 a perspective view of a rotor disk with a sliding unit, Figure 2 a perspective view of a hack rotor with multiple rotor discs, Figure 3 a sectional view of the rotor disk with a sliding unit that can be moved transversely to the radial direction, Figure 4 a sectional view of the rotor disk with a sliding unit that can be moved transversely to the radial direction, Figure 5 a sectional view of the rotor disk with a sliding unit and sliding mechanism that can be moved transversely to the radial direction and Figure 6 A sectional view of the rotor disk with a sliding unit that can be moved transversely to the radial direction, a sliding mechanism and a retaining element for holding the sliding unit on the disk body.

[0042] Figure 1shows a perspective view of a rotor disk 1 for a chopping rotor 13 for chopping wood and producing wood chips.

[0043] As can be seen from the exemplary embodiment of the Figure 1 As can be seen, the rotor disc 1 preferably includes a knife holder 2. The knife holder 2 is designed to securely hold a knife 3 for cutting and / or shredding wood. The knife 3 is attached to the knife holder 2 and serves to shred wood. This ensures reliable and efficient shredding of the material, which improves the operational reliability and performance of the rotor disc 1. The knife 3 and the knife holder 2 are shown here on the rotor disc 1 for the sake of clarity in explaining the invention.

[0044] The rotor disk 1 further comprises a disk body 11.

[0045] The in Figure 1The illustrated embodiment further shows that the rotor disk 1 has a displacement unit 4. The displacement unit 4 is displaceable in a displacement direction 8, which is oriented transversely, in particular perpendicularly, to a radial direction 7 of the rotor disk 1. This orientation enables precise adjustment of the cutting length, thereby increasing the flexibility and adaptability of the rotor disk 1. Additionally, it is advantageous if the displacement direction 8 is oriented parallel to a tangential direction of the rotor disk 1. Alternatively or additionally, it offers advantages if the displacement direction 8 is oriented transversely, in particular perpendicularly, to an axial direction 6 of the rotor disk 1. This configuration contributes to the stability and accuracy of the adjustment, which improves the quality of the shredding result. By displacing the displacement unit 4, the cutting length of the shredded wood can be adjusted.The size of the wood chips produced can be adjusted. By moving the shifting unit 4 along the shifting direction 8, it can be pushed towards or away from the knife 3.

[0046] According to the present embodiment, the rotor disk 1 comprises a sliding surface 5. The sliding surface 5 is arranged such that it is oriented transversely, in particular perpendicularly, to the radial direction 7 and / or axial direction 6. The sliding unit 4 can be moved along and / or on the sliding surface 5. This arrangement enables a uniform distribution of forces and minimizes wear on the components, thus extending the service life of the rotor disk 1.

[0047] In the exemplary embodiment of the Figure 1The displacement unit 4 also includes a support surface 9. The support surface 9 serves to support the displacement unit 4 on the displacement surface 5. The support surface 9 and the displacement surface 5 are designed to correspond. It is advantageous that the support surface 9 and the displacement surface 5 bear against each other at least partially, and in particular completely, and remain in contact, especially during displacement of the displacement unit 4. This design ensures stable and low-friction displacement, which improves the operability and precision of the cutting length adjustment. Full or at least partial full-surface contact between the displacement surface 5 and the support surface 9 results in a stable arrangement of the displacement unit 4 on the rotor disk 1 or the disk body 11, even during displacement of the displacement unit 4 and in its various positions.

[0048] According to the present embodiment of the Figure 1 The displacement surface 5 is oriented along a chord of the rotor disk 1. The displacement surface 5 can be sectionally straight and / or sectionally curved. This allows for a corresponding displacement or a displacement along a corresponding displacement path. As shown in Figure 1 As shown, the displacement unit 4 can be moved along a secant of the rotor disk 1. Additionally or alternatively, the displacement unit 4 can also be moved along a circular arc.

[0049] An outer surface 10 is arranged on the side of the displacement unit 4 opposite the support surface 9. This outer surface 10 can be curved, as shown here, and have a radius of curvature corresponding to that of the rotor disk 1. This adaptation ensures harmonious integration of the displacement unit 4 into the rotor disk 1 and reduces possible disturbances or irregularities in operation.

[0050] Furthermore, the rotor disk 1 has an axial direction 6.

[0051] Furthermore, the rotor disk 1 includes a passage 12 through which a shaft 14 or a bearing 15 can be guided in order to drive the rotor disk 1.

[0052] For the sake of simplicity, features already described in at least one preceding figure cannot be explained again. Furthermore, features may only be described in this figure or in at least one of the following figures. Additionally, for the sake of simplicity, the same reference symbols are used for identical features. Moreover, for the sake of clarity, not all features can be shown and / or labeled in the following figures. However, features shown in one or more of the preceding figures may also be present in this figure or in one or more of the following figures. Furthermore, for the sake of clarity,

[0053] Features may only be shown in this figure or in one or more of the following figures and / or be marked with a reference symbol. Nevertheless, features shown only in one or more of the following figures may already be present in this figure or a preceding figure.

[0054] Figure 2 shows a perspective view of a hack rotor 13 with several rotor disks 1.

[0055] As can be seen from the exemplary embodiment of the Figure 2 As can be seen, the chipping rotor 13 comprises several, namely in this example a total of six rotor discs 1a - 1f. These rotor discs 1a - 1f are arranged on a shaft 14. The arrangement of the rotor discs 1a - 1f on the shaft 14 ensures a stable and uniform distribution of the shredding forces, which leads to efficient shredding of the wood.

[0056] The in Figure 2The illustrated embodiment further shows that bearings 15 are arranged between the rotor disks 1a - 1f and the shaft 14. However, only one bearing 15 is visible here.

[0057] The rotor discs 1a - 1f are arranged along the shaft 14 to enable effective shredding of the wood. Each of the rotor discs 1a - 1f has knives 3 and displacement units 4, which are not labeled here. These components contribute significantly to the flexibility and precision of the shredding rotor 13.

[0058] Figure 3 and Figure 4 shown are sectional views of the rotor disk 1 with different arrangements and / or positions of the shifting unit 4 to produce the different sizes of wood chips.

[0059] The exemplary embodiment of the Figure 3Figure 1 shows an arrangement in which the displacement unit 4 is moved closer to the knife 3 or to a cutting edge 16 of the knife 3. In this arrangement, the circular distance 39 between a cutting circle 17 and an edge circle 38 is small. The cutting circle 17 is formed by the rotation of the cutting edge 16 on the rotating rotor disk 1. The edge circle 38 is formed by the rotating outer surface 10 or a section of the outer surface 10, namely, in this embodiment, an edge 19 of the outer surface 10. The circular distance 39 is the difference between the radii of the cutting circle 17 and the edge circle 38.

[0060] The one in Figure 3The arrangement and / or position of the shifting unit 4 shown is advantageous for the production of small wood chips. By shifting the shifting unit 4 in the shifting direction 8, the radius of the edge circle 38 can be changed, while the radius of the cutting circle 17 remains unchanged. Larger wood chips can be produced by increasing the circle spacing 39. The size of the wood chips depends on the size of the circle spacing 39.

[0061] According to Figure 3 The rotor disk 1 has a sliding surface 5, which is oriented transversely, in particular perpendicularly, to the radial direction 7 and / or axial direction 6. The sliding unit 4 is displaceable along this sliding surface 5. The sliding unit 4 comprises the support surface 9, by means of which the sliding unit 4 rests on the sliding surface 5.

[0062] In the execution of the Figure 4The shifting unit 4 is pushed away from the knife 3 or from the cutting edge 16. The circular distance 39 between the cutting circle 17 and the edge circle 38 is larger compared to the configuration of the Figure 3 This arrangement is particularly advantageous for the production of large wood chips. The edge circle 38 is essentially flush with an outer surface of the rotor disk 1 or the disk body 11.

[0063] In the explanations of the Figures 3 and 4 The rotor disc 1 rotates counterclockwise. As a result, the wood first slides over the shifting unit 4 and only then reaches the knife 3. By adjusting and / or positioning the shifting unit 4 relative to the knife 3, the circle spacing 39 can be set so that different sized wood chips can be produced.

[0064] As shown here and in the other figures, the rotor disc 1 includes a wood chip recess 18. This is arranged between the knife 3 and the shifting unit 4. This wood chip recess 18 prevents the cut wood chips from accumulating.

[0065] Figure 5 Figure 1 shows a sectional view of the rotor disk 1 with a displacement unit 4 that can be moved transversely to the radial direction 7 and a displacement mechanism 20. The rotor disk 1 is only partially shown here.

[0066] The in Figure 5The illustrated embodiment shows that the rotor disk 1 includes a displacement mechanism 20 by means of which the displacement unit 4 can be displaced. The displacement mechanism 20 has at least one displacement element 23, 24 by means of which the displacement unit 4 can be displaced. This configuration enables precise and controlled displacement of the unit, which increases the flexibility and adaptability of the rotor disk 1. In the present embodiment, two displacement elements 23, 24 are shown. Consequently, the elements described below, which interact with the displacement elements 23, 24, are also present in duplicate. If the displacement mechanism 20 comprises only one displacement element 23, 24, then the corresponding elements can also be present only singly.

[0067] As can be seen from the exemplary embodiment of the Figure 5As can be seen, the displacement elements 23, 24 are movable, in particular, in the radial direction 7. Additionally or alternatively, the displacement elements 23, 24 are guided transversely to the radial direction 7. These directions of movement allow for flexible adjustment of the cutting parameters, which improves the efficiency and precision of the comminution. Due to the guidance, the displacement elements 23, 24 can only move in the radial direction 7. They can be guided transversely to this direction.

[0068] The displacement unit 4 has at least one recess 25, 26 in which the displacement element 23, 24 is arranged. According to the present embodiment, two recesses 25, 26 are provided, with a displacement element 23, 24 arranged in each recess 25, 26. Alternatively, there may be only a single recess 25, 26 in which the two displacement elements 23, 24 are arranged.

[0069] The at least one sliding element 23, 24 comprises an inclined surface 29, 30. A sliding surface 31, 32 is arranged in the at least one recess 25, 26. Here, two inclined surfaces 29, 30 and / or two sliding surfaces 31, 32 are present. The first sliding element 23 comprises the first inclined surface 29, and the first recess 25 comprises the first sliding surface 31. The second sliding element 24 comprises the second inclined surface 30, and the second recess 26 comprises the second sliding surface 32.

[0070] The inclined surfaces 29 and 30 can preferably be brought into contact with the slip surfaces 31 and 32. In the exemplary embodiment of the Figure 5 The inclined surfaces 29 and 30 and the slip surfaces 31 and 32 are in contact with each other.

[0071] Furthermore, the at least one inclined surface 29, 30 and the at least one sliding surface 31, 32, as can be seen here, are arranged and / or oriented at an angle to the radial direction 7. This allows the surfaces to slide against each other. Since the at least one displacement element 23, 24 is guided, it cannot move in the displacement direction 8. Consequently, the displacement unit 4 moves in the displacement direction 8. To achieve the displacement of the displacement unit 4, the at least one displacement element 23, 24 is moved in the radial direction 7, causing the surfaces to slide against each other. The at least one inclined surface 29, 30 and the at least one sliding surface 31, 32 together form a deflection arrangement that converts the movement of the at least one displacement element 23, 24 in the radial direction 7 into a displacement of the displacement unit 4 in the displacement direction 8.

[0072] Since at least one inclined surface 29, 30 and at least one sliding surface 31, 32 are in contact with each other, the sliding unit 4 cannot move or is thereby fixed.

[0073] According to Figure 5The inclined surfaces 29 and 30 and / or the sliding surfaces 31 and 32 are arranged at an angle to the radial direction 7. The displacement element 23, 24 can be moved against the sliding surface 31, 32 by means of an actuator 21, 22, causing the displacement unit 4 to move in the displacement direction 8. This precise control of the displacement improves operability and enables accurate adjustment of the cutting length. The displacement element 23, 24 can be moved in the radial direction 7 by means of the at least one actuator 21, 22. In the present embodiment, each displacement element 23, 24 is assigned an actuator 21, 22. The first actuator 21 is assigned to the first displacement element 23, and the second actuator 22 is assigned to the second displacement element 24. The at least one actuator 21, 22 can, for example, be a hydraulic actuator.

[0074] The displacement unit 4 comprises a first and a second recess 25 and 26, wherein each of the two recesses 25 and 26 is assigned a displacement element 23 and 24.

[0075] Furthermore, the sliding unit 4 includes a wedge element 33 on which at least one slip surface 31, 32 is arranged. The wedge element 33 is positioned between the two recesses 25 and 26. This design ensures an even distribution of forces and increases the stability of the entire unit.

[0076] Additionally or alternatively, it offers advantages if the displacement mechanism 20 and / or the displacement unit 4 includes at least one counter element 27, 28 by means of which the displacement element 23 and 24 is guided transversely to the radial direction 7. The counter element 27, 28 is arranged in the recess 25, 26. This guidance ensures a precise and stable displacement movement, which improves the reliability and accuracy of the rotor disk 1. Due to the at least one counter element 27, 28, the at least one displacement element 23, 24 is immobile and / or fixed in the displacement direction 8, so that consequently the displacement unit 4 is displaced.

[0077] The displacement mechanism 20 additionally comprises at least one actuator 21 and 22 with which the displacement element 23 and 24 can be moved, in particular in the radial direction 7. The displacement mechanism 20 comprises a first and a second actuator 21 and 22, wherein the first actuator 21 can move a first displacement element 23 and the second actuator 22 can move a second displacement element 24. The at least one actuator 21 and 22 is a hydraulic actuator and comprises an actuator shaft 36 and 37 on which the displacement element 23, 24 is arranged. These hydraulic actuators enable powerful and precise control of the displacement movements, which further improves the efficiency and performance of the rotor disk 1.

[0078] In summary, this shows that Figure 5The illustrated embodiment shows a detailed design of the rotor disk 1 with a displacement unit 4 that is displaceable transversely to the radial direction 7 and a displacement mechanism 20. The described advantages and effects, such as the precise control of the displacement movement, the increased stability of the arrangement, the reduction of wear and the possibility of producing wood chips of different sizes, contribute significantly to the improved functionality and performance of the rotor disk 1.

[0079] Figure 6 Figure 1 shows a sectional view of the rotor disk 1 with a sliding unit 4, sliding mechanism 20, and a retaining element 34 for holding the sliding unit 4, which is movable transversely to the radial direction 7. Figure 6 shows the same elements as the Figure 5 In addition, the Figure 6 also the retaining element 34 and the retaining recess 35.

[0080] The exemplary embodiment of the Figure 6The translation further includes the fact that the displacement mechanism 20 and / or the displacement unit 4 comprises at least the retaining element 34, in particular a retaining screw, by means of which the displacement unit 4 is held on the rotor disk 1, in particular on a disk body 11 of the rotor disk 1. The displacement unit 4 includes a retaining recess 35 in which the retaining element 34 is at least partially arranged. This retaining device ensures secure fastening of the displacement unit 4. With the aid of the retaining element 34, the displacement unit 4 can be held on the disk body 11 when the displacement process is carried out. The retaining element 34 can, for example, be a countersunk screw.

[0081] Furthermore, in the Figure 6 Actuator shafts 36, 37 of actuators 21, 22 are marked with a reference numeral. The actuator shafts 36, 37 connect the displacement elements 23, 24 to the actuators 21, 22.

[0082] Figure 6shows another difference to Figure 5Here, the first displacement element 23 is displaced in radial direction 7 such that the first inclined surface 29 and the first sliding surface 31 are no longer in contact with each other. These two surfaces 29 and 31 are spaced apart. The first actuator 21 has displaced the first displacement element 23 in radial direction 7. As a result, the displacement unit 4 can be moved. For this purpose, the second actuator 22 is actuated such that it moves the second displacement element 24 inwards in radial direction 7, i.e., towards the feedthrough 12. Since the second inclined surface 30 and the second sliding surface 32 are inclined, they both slide against each other. Since the second displacement element 24 is guided, i.e., the second displacement element 24 cannot move in the displacement direction 8, the displacement unit 4 moves in the displacement direction 8. The displacement unit 8 moves away from the knife 3, so that, for example, a position according to Figure 4 can be reached or any other position. The displacement of the sliding unit 4 continues until the first inclined surface 29 and the first sliding surface 31 are in contact with each other again. Then the sliding unit 4 is fixed again.

[0083] The movement and positioning are thus achieved by moving at least one sliding element 23, 24 or the two sliding elements 23, 24 shown here. With the aid of at least one actuator 21, 22, the displacement of the sliding unit 4 can be carried out automatically, i.e., without manual intervention. Since the sliding unit 4 is also moved transversely to the radial direction 7, the sliding surface 5 and the support surface 9 can be kept in constant contact with each other. This increases the stability, particularly in the radial direction 7, of the sliding unit 4 when the rotor disk 1 is in use, as high forces act on the rotor disk 1, the sliding unit 4, and the blade 3 when the wood is being shredded. Reference symbol list

[0084] 1 Rotor disc 2 Blade holder 3 Blade 4 Shifting unit 5 Shifting surface 6 Axial direction 7 Radial direction 8 Shifting direction 9 Support surface 10 Outer surface 11 Disc body 12 Feedthrough 13 Chipping rotor 14 Shaft 15 Bearing 16 Cutting edge 17 Cutting circle 18 Wood chip recess 19 Shifting element edge 20 Shifting mechanism 21 First actuator 22 Second actuator 23 First shifting element 24 Second shifting element 25 First recess 26 Second recess 27 First counter element 28 Second counter element 29 First inclined surface 30 Second inclined surface 31 First slip surface 32 Second slip surface 33 Wedge element 34 Holding element 35 Holding recess 36 First actuator shaft 37 Second actuator shaft 38 Edge circle 39 Circle spacing

Claims

1. Rotor disc (1), in particular chipper rotor disc, for a chipper rotor (13), in particular wood chip rotor, for chipping wood to produce wood chips, with at least one movable displacement unit (4) by means of which a cutting length can be set, characterized by , that which at least one displacement unit (4) is displaceable in a displacement direction (8) which is oriented transversely, in particular perpendicularly, to a radial direction (7) of the rotor disk (1).

2. Rotor disk according to the previous claim, characterized by , that the displacement direction (8) is oriented parallel to a tangential direction of the rotor disk (1) and / or that the displacement direction (8) is oriented transversely, in particular perpendicularly, to an axial direction (6) of the rotor disk (1).

3. Rotor disk according to one or more of the preceding claims, characterized by , thatthe rotor disk (1) has at least one displacement surface (5) which is oriented transversely, in particular perpendicularly, to the radial direction (7) and / or axial direction (6) and along which the at least one displacement unit (4) is displaceable, that the at least one displacement unit (4) preferably has at least one support surface (9) by means of which the displacement unit (4) rests on the displacement surface (5) and / or that the support surface (9) and the displacement surface (5) are designed to correspond to each other and / or that the support surface (9) and the displacement surface (5), in particular when the displacement unit (4) is displaced, at least partially, in particular completely, abut each other and / or remain in contact, and / or that the at least one displacement unit (4) is displaceable along a secant and / or a circular arc of the rotor disk (1).

4. Rotor disk according to one or more of the preceding claims, characterized by , thatthe displacement surface (5) is oriented along a circular chord of the rotor disk (1) and / or that the displacement surface (5) is at least sectionally straight and / or at least sectionally curved.

5. Rotor disk according to one or more of the preceding claims, characterized by , that the at least one displacement unit (4) has an outer surface (10) which is arranged on the side of the displacement unit (4) opposite the support surface (9), wherein the outer surface (10) is preferably curved and / or has a radius of curvature equal to that of the rotor disk (1).

6. Rotor disk according to one or more of the preceding claims, characterized by , thatthe rotor disk (1) comprises a displacement mechanism (20) by means of which the at least one displacement unit (4) can be displaced, and / or that the displacement mechanism (20) comprises at least one displacement element (23, 24) by means of which the displacement unit (4) is displaceable, and / or that the at least one displacement element (23, 24) is movable, in particular in the radial direction (7), and / or that the at least one displacement element (23, 24) is guided, in particular transversely to the radial direction (7), and / or that the displacement unit (4) has at least one recess (25, 26) in which the at least one displacement element (23, 24) is arranged.

7. Rotor disk according to one or more of the preceding claims, characterized by , thatthe at least one sliding element (23, 24) comprises an inclined surface (29, 30) and / or that a sliding surface (31, 32) is arranged in the at least one recess (25, 26), wherein the inclined surface (29, 30) can preferably be brought into contact with the sliding surface (31, 32), and / or that the inclined surface (29, 30) and / or the sliding surface (31, 32) is arranged obliquely to the radial direction (7) and / or that the at least one sliding element (23, 24) can be moved against the at least one sliding surface (31, 32) so that the sliding unit (4) moves in the sliding direction (8).

8. Rotor disk according to one or more of the preceding claims, characterized by , thatthe displacement unit (4) comprises a first and a second recess (25, 26), wherein each of the two recesses (25, 26) is associated with a displacement element (23, 24), and / or that the displacement unit (4) comprises a wedge element (33) on which the at least one slip surface (31, 32) is arranged, wherein preferably both slip surfaces (31, 32) are arranged on the wedge element (33), and that the wedge element (33) is preferably arranged between the two recesses (25, 26).

9. Rotor disk according to one or more of the preceding claims, characterized by , that the displacement mechanism (20) and / or the displacement unit (4) comprises at least one counter element (27, 28) by means of which the at least one displacement element (23, 24) is guided transversely to the radial direction (7), and that the at least one counter element (27, 28) is preferably arranged in the recess (25, 26).

10. Rotor disk according to one or more of the preceding claims, characterized by , thatthe displacement mechanism (20) and / or the displacement unit (4) comprises at least one retaining element (34), in particular a retaining screw, by means of which the displacement unit (4) is held on the rotor disk (1), in particular on a disk body (11) of the rotor disk (1), and that the displacement unit (4) preferably comprises a retaining recess (35) in which the retaining element (34) is at least partially arranged.

11. Rotor disk according to one or more of the preceding claims, characterized by , that the displacement mechanism (20) comprises at least one actuator (21, 22) by means of which the at least one displacement element (23, 24) is movable, in particular in the direction of the radial direction (7), that the at least one actuator (21, 22) is preferably a hydraulic actuator, and / or that the at least one actuator (21, 22) comprises an actuator shaft (36, 37) on which the displacement element (23, 24) is arranged.

12. Rotor disk according to one or more of the preceding claims, characterized by , that the displacement mechanism (20) comprises a first and a second actuator (21, 22), wherein the first actuator (21) can move a first displacement element (23) and the second actuator (22) can move a second displacement element (24).

13. Chopping rotor (13) for chopping wood to produce wood chips, with at least one rotor disc (1), characterized by , that the rotor disk (1) is designed according to one or more of the preceding claims.

14. Displacement unit (4) for a rotor disk (1) of a chopper rotor (13), which has at least one feature mentioned in the preceding claims relating to the displacement unit (4).

15. Use of a displacement unit (4) for a rotor disk (1) of a chopper rotor (13), which has at least one feature mentioned in the preceding claims relating to the displacement unit (4).

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