EP2926908B1 - Couvercle de protection pour un rotor et rotor - Google Patents

Couvercle de protection pour un rotor et rotor Download PDF

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Publication number
EP2926908B1
EP2926908B1 EP14192227.8A EP14192227A EP2926908B1 EP 2926908 B1 EP2926908 B1 EP 2926908B1 EP 14192227 A EP14192227 A EP 14192227A EP 2926908 B1 EP2926908 B1 EP 2926908B1
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EP
European Patent Office
Prior art keywords
rotor
protective cap
protective
elements
wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14192227.8A
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German (de)
English (en)
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EP2926908A1 (fr
Inventor
Erich Schönenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Craco GmbH
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Craco GmbH
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Publication date
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Publication of EP2926908A1 publication Critical patent/EP2926908A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/04—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters hinged to the rotor; Hammer mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C2013/2808—Shape or construction of beater elements the beater elements are attached to disks mounted on a shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2210/00—Codes relating to different types of disintegrating devices
    • B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like

Definitions

  • the invention relates to a protective cap for a rotor of a shredding machine and to a rotor, wherein the rotor is formed from a rotor shaft with support disks arranged at a distance in the axial direction of the rotor shaft and impact tools mounted so as to be rotatable between support disks of the rotor, wherein the protective cap is designed such that the protective cap can be fastened to or between the support disk, and a roller-shaped casing of the rotor with openings for the impact tools can be formed from a plurality of protective caps arranged radially on or between the support disks, wherein a partial casing surface of a casing surface of the casing can be formed with the protective cap, wherein the protective cap is formed from at least two flat surface sections, wherein the surface sections are each formed from a plate-shaped wear element.
  • crushing machines which, among other things, have a rotor made of discs.
  • Such crushing machines are also referred to as so-called hammer crushers, since between the discs or support discs there are rotating Impact tools or hammers are mounted, which can be used to crush metal scrap, plastic waste, wood waste or similar fractions.
  • hammer crushers since between the discs or support discs there are rotating Impact tools or hammers are mounted, which can be used to crush metal scrap, plastic waste, wood waste or similar fractions.
  • the outer surfaces of the discs can suffer considerable damage or wear due to the impact of material during crushing, it is known to provide the discs with a protective agent.
  • the protective agents can extend over the length of the rotor and thus form a wear-resistant, roller-shaped casing for the rotor's discs.
  • shredding machines known from the prior art
  • shredding machines with rotating hammers on a rotor and shredding machines without rotating hammers have cutting edges or edges which also cause a shredding of a feed material fed to the shredding machine.
  • the rotors with hammers are used for comparatively coarse shredding of the feed material fed, whereas the rotors with cutting edges or edges are used for comparatively fine shredding of the feed material fed. This can mean that shredding feed material may require the use of two different shredding machines.
  • the feed pieces are shredded essentially by means of the hammers by impact, with the edges or impact edges of the rotor being used to shred the feed pieces by impact.
  • the protective devices are usually designed as so-called protective caps and are subject to wear like the hammers of the rotor, although they are not actively involved in the crushing process.
  • the protective caps are therefore also referred to as inactive wearing parts.
  • the protective caps are together with the hammers, which also referred to as active wear parts, are attached to an axle which is guided through the disks or support disks, so that the hammers can swing freely and the protective caps essentially completely fill the gaps between the hammers. By removing or pulling out the axle from the support disks, the protective caps and the hammers can be exchanged or replaced when they are worn out.
  • the basic structure of such a rotor of a crushing machine is known, for example, from the DE 2 605 751 A1 known.
  • a rotor of a crushing machine which is made up of hammers and protective caps.
  • the protective caps can be made of cast iron or alternatively as welded composite protective caps.
  • One embodiment of a welded protective cap can have three flat surface sections which represent a partial surface area of a casing of the rotor.
  • the present invention is therefore based on the object of proposing a protective cap for a rotor of a shredding machine and a rotor which has an increased service life and is nevertheless simple and cost-effective to manufacture.
  • the protective cap according to the invention for a rotor of a crushing machine in which the rotor is formed from a rotor shaft with support disks arranged at a distance in the axial direction of the rotor shaft and impact tools mounted so as to be rotatable between support disks of the rotor, is designed such that the protective cap can be fastened to or between support disks, and a roller-shaped casing of the rotor with openings for the impact tools can be formed from a plurality of protective caps arranged radially on or between the support disks, wherein a partial casing surface of a casing surface of the casing can be formed with the protective cap, wherein the protective cap is formed from at least two flat surface sections, wherein the surface sections are each formed from a plate-shaped wear element, wherein the wear elements are directly connected to one another are welded, wherein the protective cap has an impact edge, wherein the impact edge is formed by a weld seam of the wear elements, wherein the impact edge is formed by an application of a wear
  • the protective caps form an essentially closed casing, which is perforated by the openings for the striking tools or hammers.
  • the protective caps can be distributed over the casing in the axial as well as in the radial direction in relation to the rotor and form this by means of segment-shaped partial casing surfaces.
  • the segment-shaped partial casing surfaces can be of different sizes or shapes.
  • Impact tools do not necessarily have to be arranged between all of the rotor's support disks.
  • it is essential that the partial casing surface of the protective cap or the respective protective caps of the rotor is formed from at least two flat surface sections. Because flat surface sections are used to form the partial casing surface, bending a steel sheet to form a partial casing surface adapted to the rotor or its circular cylindrical shape is unnecessary.
  • the protective cap can be manufactured particularly cost-effectively, as the laborious bending of a relatively thick steel sheet, which requires the use of a machine, can be completely dispensed with. This also makes it possible to achieve considerable cost savings in the manufacture of the protective cap and to extend the service life of the protective cap.
  • the protective cap can also form more than two flat surface sections. It is important that the entire partial surface of the protective cap is composed almost entirely or predominantly of flat surface sections.
  • the surface sections are each formed from a plate-shaped or straight-shaped wear element.
  • the plate-shaped wear element can be produced particularly easily from a steel sheet by cutting. Furthermore, the plate-shaped wear element can then also be subjected to a temperature treatment, such as annealing, hardening and/or tempering. Any deformation of the plate-shaped wear elements as a result of the temperature treatment is not important, in contrast to curved wear elements.
  • the wear elements are welded directly to one another.
  • a completely closed partial surface can be formed for a protective cap.
  • the protective cap is formed from several elements, all elements can be welded to one another.
  • the protective cap also has an impact edge.
  • the surface sections can be arranged relative to one another in such a way that an edge running axially relative to the rotor is formed on the protective cap.
  • the impact edge or impact edge can then cause feed material to bounce off the casing when the rotor rotates. An undesirable concentration of feed material directly on the casing surface can thus be avoided simply by forming the protective caps.
  • the impact edge is formed by a weld seam of the wear elements.
  • the weld seam can be comparatively hard compared to the material of the surface sections. Since the impact edge is likely to be subjected to greater stress than the surface sections, premature wear of the impact edge can be avoided.
  • the impact edge is formed by applying a wear material.
  • the impact edge can also be If worn, it can be repaired by re-applying wear material.
  • the wear material can be a coating or material applied by simple welding.
  • the surface sections can preferably be arranged in such a way that the surface normals of the surface sections run at an angle ⁇ relative to one another.
  • the angle ⁇ can be an acute angle deviating from 0°. This makes it possible to form a rotor from a plurality of protective caps that has a comparatively round cross-section.
  • the angle ⁇ can be defined or determined by 360° divided by the number of surface sections in relation to the circumference of the casing.
  • the angle ⁇ can then be the same for all protective caps forming the casing.
  • the surface sections can then each have the same radial length in relation to the circumference of the casing. This makes the flat surface sections even easier to manufacture.
  • the protective cap can be designed in such a way that surface normals of the surface sections can intersect in a rotation axis of the rotor. This can prevent a possible imbalance of the rotor, whereby the casing of the rotor can be made even closer to a circular shape.
  • the protective cap can form a fastening web with a hub for fastening the protective cap to or between support disks.
  • the fastening web can then be arranged in the radial direction relative to a surface section at right angles to this. If the rotor has axes that are inserted through openings in the support disks or the support disks themselves form axes or projections, the protective cap can easily be put onto an axle with the hub and thus securely fastened.
  • the protective cap can be made up of a plurality of elements joined together.
  • the elements can preferably be joined by welding, although other suitable joining techniques can also be used. It is then also possible to form the elements from materials that are most suitable for the purpose of the elements.
  • the impact edge can be designed in such a way that the impact edge can radially extend beyond an average outer diameter of the casing.
  • the protective caps forming the casing therefore each extend beyond the average outer diameter of the casing with their impact edge. This ensures that no feed material can concentrate directly on the casing during operation of a rotor, since the feed material constantly bounces off the impact edges and is conveyed in the direction of hammers, for example.
  • the wear elements can also have a hardness of 350 to 550 Brinell (HB).
  • HB Brinell
  • the hardness can be 430 to 550 Brinell. This ensures that the wear elements or the surface sections of the protective cap formed by the wear elements are sufficiently resistant to damage and wear.
  • the wear elements can be manufactured to be particularly wear-resistant and yet cost-effective if they are made of fine-grained structural steel. Fine-grained structural steel is also particularly suitable for temperature treatment to achieve the desired hardness.
  • the protective cap can have support elements, whereby the support elements can be arranged on a support side of the wear elements facing away from the partial surface, such that the protective cap can be adapted to a shape of the support disks.
  • the protective caps can then by means of the support elements, they can be adapted to the respective outer contour of the support disks in such a way that the protective caps rest on the support disks or their outer contour at at least two points.
  • the protective caps can then be supported on the support disks by means of the support elements, whereby tipping of the protective caps or undesirable relative movement to the support disks can also be easily avoided.
  • three support elements can be used to support a protective cap on an outer contour of a support disk.
  • the protective cap can also rest on the support disks at other points on the protective cap where no support elements are arranged.
  • a fastening web of the protective cap can be formed from a connecting plate for the wear elements, whereby the connecting plate can also be reinforced with reinforcing plates. Consequently, the wear elements can be connected to one another via the fastening web, whereby the wear elements can be welded to the fastening web or the connecting plate.
  • the reinforcing plates can be arranged on both sides of the connecting plate and also connected or joined to both wear elements. In this way, it is also possible to achieve a particularly good fastening of the protective cap to, for example, an axle of a rotor, since the axle can be guided through a through-opening in the connecting plate and the reinforcing plates.
  • the rotor is formed from a rotor shaft with support disks arranged at a distance in the axial direction of the rotor shaft, impact tools rotatably mounted between support disks of the rotor and protective caps according to the invention, wherein the protective caps are fastened to or between support disks, wherein a plurality of radially or A closed, cylindrical casing of the rotor with openings for the impact tools is formed between the protective caps arranged between the support disks.
  • the casing of the rotor forms impact edges.
  • the finer crushing can be achieved by the impact edges on the feed material and by the impact effect of the impact edges.
  • the feed material can thus be conveyed away from the casing of the rotor into a crushing chamber. Unlike with a purely circular casing, the feed material cannot slide along the casing when the rotor rotates and cause abrasive wear. A concentration of feed material directly on the casing can therefore be prevented.
  • the impact edges then lead to a more even distribution of the feed material in the crushing chamber, which in turn can achieve improved crushing results. Overall, such a rotor can be used universally, since even non-pre-crushed, coarse-particle feed material can be comparatively finely crushed with the rotor.
  • the impact edges can be arranged at regular, radial intervals across the casing. This ensures that the rotor runs evenly.
  • the impact edges can be designed to run in the axial direction over the casing.
  • the impact edges can run continuously over the casing parallel to the axis of rotation of the rotor or can be interrupted in sections by impact tools.
  • Continue The impact edges can be arranged offset relative to one another in the radial and axial direction on the casing or can also run helically over the casing.
  • the impact edges can advantageously form a V-shaped pattern on the casing so that the feed material can be concentrated in a central area of the casing.
  • the casing of the rotor can be polygonal in the radial direction, based on a cross-section of the rotor.
  • the polygonal shape of the casing can be made closer to a circular shape. It can also be provided that the polygonal shape of the casing is selected depending on the type of feed material.
  • the casing can have at least six protective caps in the radial direction, based on a cross section of the rotor. If each of the protective caps forms two surface sections of the casing, the casing can be formed in the cross section of twelve straight surface sections.
  • the shredding machine according to the invention comprises a rotor according to the invention.
  • Advantageous embodiments of a shredding machine emerge from the subclaims which refer back to device claim 1.
  • the Fig.1 shows a rotor 10 in a cross-sectional view.
  • the rotor 10 is arranged in a crushing machine (not shown here) and is formed from a rotor shaft 11, support disks 12 and striking tools 14 designed as hammers 13.
  • the rotor 10 also comprises protective caps 15 which form a roller-shaped casing 16 of the rotor 10, with openings 17 for the hammers 13 being provided in the casing 16.
  • the protective caps 15 and the hammers 13 are attached to axles 18 which are inserted into through holes 19 of the support disks 12 and which connect the additional support disks (not shown in detail here) to one another. Consequently, the protective caps 15 and the hammers 13 are attached to the axles 18 between the support disks 12.
  • the protective caps 15 rest on the support disks 12, with the hammers 13 being mounted so they can rotate freely and swing through.
  • the rotor 10 can rotate in a direction of rotation indicated by an arrow 20.
  • a comminution chamber 21 the boundary walls of which are not shown here, there is feed material 22 to be comminuted, which can bounce off a casing surface 23 of the casing 16 and reach an effective area of the hammers 13.
  • the protective caps 15 form a partial surface area 24 of the surface area 23 with two flat surface sections 25.
  • the surface sections 25 are each formed from a plate-shaped wear element 26, wherein the wear elements 26 are joined directly to one another by means of a weld seam 27.
  • the weld seam 27 here forms an impact edge 28 of the protective cap 15 or the rotor 10.
  • the Fig.2 shows a protective cap 29 for a rotor (not shown in detail here) with polygonal support disks, wherein the protective cap 29 is formed from two plate-shaped wear elements 30, a connecting plate 31 and reinforcing elements 32.
  • the connecting plate 31 and the reinforcement plates 32 form a fastening web 33 with a through opening 34 for an axis 35, shown here in outline, for fastening the protective cap 29 to the rotor.
  • the connecting plate 31, the reinforcement plates 32 and the wear elements 30 are completely connected to one another via welded connections, with the wear elements 30 in particular being directly connected to one another with a weld seam 36.
  • a wear material 37 is additionally applied to the weld seam 36, which forms an impact edge 38.
  • the wear elements 30 are also connected to one another via the connecting plate 31 and the reinforcement plates 32.
  • the connecting plate 31 and the reinforcement plates 32 or the fastening web 33 can be used in a gap (not shown in more detail) between two support disks of a rotor, with the wear elements 30 then resting with a support side 39 on the respective support disks.
  • the Fig.3 shows a protective cap 40 which has wear elements 41 and a fastening web 42 for fastening to an axle 43.
  • the wear elements 41 are also directly connected via a weld seam 44 with a coating of wear material 45.
  • the protective cap 40 also comprises support elements 47 and 48 arranged on a support side 46 of the wear elements 41.
  • the support elements 47 are each arranged on radial ends 49 of the protective cap 40, with the support elements 48 being arranged in the area of the weld seam 44.
  • the support elements 47 and 48 form concave support surfaces 50 and 51 respectively for supporting the protective cap 40 on a circular support disk (not shown here).
  • the Fig.4 shows a detailed view of the rotor 10 from Fig.1
  • the protective cap 15 with the wear elements 26 are also supported on the support disk 12 via support elements 52 and 53.
  • a surface normal 54 of the wear element 26 runs relative to a plane of symmetry 55 of the protective cap 15 at an angle ⁇ /2.
  • the Protective cap 15 rests on an outer circumference 58 of the support disk 12 via support surfaces 56 and 57 of the support elements 52 and 53, respectively.
  • direct support points 59 are formed by contact of a support side 60 of the wear elements 26 with the outer circumference 58.
  • the protective cap 15 is spaced from the adjacent protective cap 15 by a gap 61.
  • the Fig.5 shows a schematic diagram of a rotor 62 with a protective cap 63 and a support disk 64.
  • the dimension of a distance X results from a radius r of the support disk 64 divided by cos ⁇ - r.
  • the angle ⁇ is defined by a surface normal 65 of a surface section 66 of the protective cap 63 and a tangent 67 of the protective cap 63, whereby the tangent 67 and the surface normal 65 intersect in a rotation axis 68 of the rotor 62.
  • the Fig.6 shows a rotor 69 which, in contrast to the rotor from Fig.1 Protective caps 70 with a blow bar 71.
  • the blow bars 71 protrude into a crushing chamber 72 so that feed material 73 can bounce off the blow bar 71, as indicated here, and be crushed by impact.
  • the Fig.7 shows a rotor 74 with protective caps 75 shown schematically here and in particular support disks 76 which are polygonal in shape.
  • An outer contour 77 of the support disks 76 is adapted to a support side 78 of the protective cap 75 in such a way that the support side 78 lies completely against the outer contour 77 without support elements being required.
  • a casing 79 of the rotor 74 is formed by six protective caps 75 in relation to the cross section shown here.
  • the Fig.8 shows a protective cap 80 which has two wear elements 81 and a fastening web 82 connecting the wear elements 81.
  • the wear elements 81 are spaced apart from each other so that profile elements 83 and 84 are arranged, which form a blow bar receptacle 85 in the form of a longitudinal groove 86 for a blow bar 87.
  • the profile element 84 has a nose 88 running along the profile element 84, which engages in a correspondingly formed groove 89 of the blow bar 87.
  • an application coating 90 is provided, which completely covers the profile elements 83 and 84 and at least partially covers the wear elements 81.
  • the Fig.9 shows a protective cap 91 which, like the one in Fig.8 described protective cap, but like the one in Fig.3
  • the protective cap described has support elements 92 and 93.
  • the Fig. 10 and 11 show a blow bar 94 and profile elements 95 and 96, each in enlarged side views.
  • the blow bar 94 has a groove 97 into which a nose 98 of the profile element 96 can engage.
  • the blow bar 94 is essentially rectangular and consists of fine-grained structural steel with a hardness of up to 550 Brinell.
  • the profile elements 95 and 96 are each welded directly to a support element 99 and wear elements 100.
  • the profile elements 95 and 96 are spaced apart from one another to such an extent that a blow bar holder 101 is formed between the profile elements 95 and 96, into which the blow bar 94 can be pushed laterally.
  • the blow bar 94 is positively fixed by the groove 97 and the nose 98 in the blow bar holder 101.
  • a coating 102 is also formed.
  • the Fig. 12 shows an enlarged view of the rotor from Fig.6 , whereby it can be seen that a surface normal 103 of wear elements 104 forms an angle ⁇ /2 to a plane of symmetry 105 of the protective cap 70.
  • the surface normal 103 and the plane of symmetry 105 intersect with a rotation axis 106 of the rotor 69.
  • the angle ⁇ is selected so that the impact bar 71 extends far into the crushing chamber 72, which can also be seen from the different heights of support elements 107 and 108 of the protective cap.
  • Outer ends 109 of the Protective cap 70 is less exposed to the feed material 73 and is flattened.
  • the Fig. 13 shows a schematic diagram of a rotor 110 with a protective cap 111 analogous to the representation of the rotor in Fig.5 .
  • the profile elements 95 and 96 are each welded directly to a support element 99 and wear elements 100.
  • the profile elements 95 and 96 are spaced apart from one another to such an extent that a blow bar holder 101 is formed between the profile elements 95 and 96, into which the blow bar 94 can be pushed laterally.
  • the blow bar 94 is positively fixed by the groove 97 and the nose 98 in the blow bar holder 101.
  • a coating 102 is also formed.
  • the Fig. 12 shows an enlarged view of the rotor from Fig.6 , whereby it can be seen here that a surface normal 103 of wear elements 104 forms an angle ⁇ /2 with a plane of symmetry 105 of the protective cap 70.
  • the surface normal 103 and the plane of symmetry 105 intersect with a rotation axis 106 of the rotor 69.
  • the angle ⁇ is selected such that the impact bar 71 extends far into the crushing chamber 72, which can also be seen from the different heights of support elements 107 and 108 of the protective cap.
  • outer ends 109 of the protective cap 70 are less exposed to the feed material 73 and are flattened.
  • the Fig. 13 shows a schematic diagram of a rotor 110 with a protective cap 111 analogous to the representation of the rotor in Fig.5 .

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (13)

  1. Couvercle de protection (15, 29, 40, 63) pour un rotor (10, 62) d'un broyeur, le rotor étant composé par un arbre de rotor (11) ayant des disques de support (12, 64), qui sont espacées dans la direction axiale de l'arbre de rotor, et des outils de percussion (14) montés de manière rotative entre des disques de support du rotor, le couvercle de protection étant configuré de telle manière que le couvercle de protection peut être monté sur ou entre des disques de support et une pluralité de couvercles de protection disposés radialement sur ou entre les disques de support peuvent former une enveloppe (16) cylindrique du rotor avec des ouvertures (17) pour les outils de percussion, le couvercle de protection étant configuré pour former une surface d'enveloppe partielle (24) d'une surface d'enveloppe (23) de l'enveloppe, le couvercle de protection étant composé par au moins deux parties de surface (25, 66) planes, les parties de surface étant formées chacune par un élément d'usure (26, 30, 41) en forme de plaque,
    caractérisé en ce que
    les éléments d'usure sont soudés directement l'un a l'autre, le couvercle de protection (15, 29, 40, 63) ayant un bord de percussion (28, 38), le bord de percussion étant formé par un cordon de soudure (27, 36, 44) des éléments d'usure (26, 30, 41), le bord de percussion étant formé en appliquant un matériau d'usure (37, 45).
  2. Couvercle de protection selon la revendication 1,
    caractérisé en ce que
    les parties de surface (25, 66) dont disposées de telle manière que des normales à la surface (54, 65) des parties de surface s'étendent à un angle α l'une par rapport à l'autre.
  3. Couvercle de protection selon la revendication 2,
    caractérisé en ce que
    l'angle α est défini par 360° divisé par le nombre de parties de surface (25, 66) par rapport à une circonférence de l'enveloppe (16).
  4. Couvercle de protection selon la revendication 2 ou 3,
    caractérisé en ce que
    le couvercle de protection (15, 29, 40, 63) est configuré de telle manière que des normales à la surface (54, 65) des parties de surface peuvent se croiser dans un axe de rotation (68) du rotor (10, 62).
  5. Couvercle de protection selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le couvercle de protection (15, 29, 40, 63) forme une âme de fixation (33, 42) avec un moyeu (34) pour fixer le couvercle de protection sur ou entre des disques de support (12, 64).
  6. Couvercle de protection selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le couvercle de protection (15, 29, 40, 63) est composé par une pluralité d'éléments joints.
  7. Couvercle de protection selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le bord de percussion (28, 38) est configuré pour dépasser radialement un diamètre extérieur moyen de l'enveloppe (16).
  8. Couvercle de protection selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le couvercle de protection (15, 40, 63) a des éléments d'appui (47, 48, 52, 53), les éléments d'appui étant disposés de telle manière sur un côté d'appui (39, 46, 60) des éléments d'usure (26, 41) détourné de la surface d'enveloppe partielle (24) que le couvercle de protection est adaptable à une forme des disques de support (12, 64).
  9. Couvercle de protection selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'une âme de fixation (33, 42) est formée par une plaque de liaison (31) pour les éléments d'usure (26, 30, 41), la plaque de liaison étant renforcée par des plaques de renforcement (32).
  10. Rotor (10, 62) pour un broyeur, le rotor étant composé par un arbre de rotor (11) ayant des disques de support (12, 64), qui sont espacées dans la direction axiale de l'arbre de rotor, des outils de percussion (14) montés de manière rotative entre des disques de support du rotor et des couvercles de protection (15, 29, 40, 63) selon l'une quelconque des revendications précédentes, les couvercles de protection étant fixés sur ou entre des disques de support, une pluralité de couvercles de protection disposés radialement sur ou entre les disques de support formant une enveloppe (16) cylindrique du rotor avec des ouvertures (17) pour les outils de percussion.
  11. Rotor selon la revendication 10,
    caractérisé en ce que
    l'enveloppe (16) est polygonale dans la direction radiale.
  12. Rotor selon la revendication 10 ou 11,
    caractérisé en ce que
    l'enveloppe (16) a au moins six couvercles de protection (15, 29, 40, 63) dans la direction radiale.
  13. Broyeur comprenant un rotor (10, 62) selon l'une quelconque des revendications 10 à 12.
EP14192227.8A 2014-04-04 2014-11-07 Couvercle de protection pour un rotor et rotor Active EP2926908B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014206556 2014-04-04

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EP2926908A1 EP2926908A1 (fr) 2015-10-07
EP2926908B1 true EP2926908B1 (fr) 2024-06-12

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Publication number Priority date Publication date Assignee Title
GB1474005A (en) 1975-03-17 1977-05-18 Lindemann Maschfab Gmbh Hammer breakers
US4373678A (en) * 1980-06-30 1983-02-15 Reitter Guenther W Rotary impact crusher having a continuous rotary circumference
DE4343801A1 (de) 1993-12-22 1995-06-29 Lindemann Maschfab Gmbh Zerkleinerungsmaschine mit Rotor
DE9319599U1 (de) * 1993-12-22 1994-02-10 Lindemann Maschinenfabrik GmbH, 40231 Düsseldorf Zerkleinerungsmaschine mit Rotor
DE102010049775A1 (de) * 2010-10-29 2012-05-03 Jenz Gmbh Maschinen- Und Fahrzeugbau Rotor einer Zerkleinerungsvorrichtung

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