EP3031526B1 - Rotor et procede de reparation d'un rotor - Google Patents

Rotor et procede de reparation d'un rotor Download PDF

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Publication number
EP3031526B1
EP3031526B1 EP15196660.3A EP15196660A EP3031526B1 EP 3031526 B1 EP3031526 B1 EP 3031526B1 EP 15196660 A EP15196660 A EP 15196660A EP 3031526 B1 EP3031526 B1 EP 3031526B1
Authority
EP
European Patent Office
Prior art keywords
rotor
flange
support plates
support
plates
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.)
Not-in-force
Application number
EP15196660.3A
Other languages
German (de)
English (en)
Other versions
EP3031526A3 (fr
EP3031526A2 (fr
Inventor
Stefan Krüger
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
Original Assignee
Craco GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Craco GmbH filed Critical Craco GmbH
Publication of EP3031526A2 publication Critical patent/EP3031526A2/fr
Publication of EP3031526A3 publication Critical patent/EP3031526A3/fr
Application granted granted Critical
Publication of EP3031526B1 publication Critical patent/EP3031526B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate
    • 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
    • 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
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor

Definitions

  • the impact rocker is formed substantially plate-shaped and arranged in the crushing space relative to the rotor so that a gap of a certain size is formed between the impact rocker or a lower edge of the impact rocker and the rotor.
  • the feed material fed through a feed chute falls onto the rotor and is thrown by the blow bars onto the impact rocker in accordance with a direction of rotation of the rotor and crushed by impact.
  • Pieces of feed material which are larger than the formed gap can not pass this and remain in the crushing space until they have a corresponding size for passing through the gap.
  • Such rotors are used for the comminution of building materials, such as concrete or rubble, rock or the like.
  • the known rotors are generally constructed in such a way that rotor disks surrounding the rotor shaft are arranged on a rotor shaft. These support discs may be spaced from each other or arranged adjacent to each other. On an outer circumference of the support disks or on recesses or grooves formed in the support disks, jaws are regularly arranged which form a blow bar holder.
  • the blow bars can thus each intermediate the Baking, extending in the axial direction of the rotor shaft, are arranged and fixed on the outer circumference of the rotor.
  • the blow bar is regularly arranged with a clearance of 3 to 6 mm in the blow bar receptacle, and can move or tilt during operation of the rotor within these limits.
  • This game is required to remove the blow bar after a wear of the same again from the blow bar recording.
  • a gap formed by the game can be filled with crushed feed material.
  • it is important that the jaws of the blow bar recording provide a comparatively large and stable contact surface for the blow bars available.
  • the present invention is therefore based on the object, a rotor, a crushing machine with a rotor, and a method for repair of a rotor vorzugter, with a cost-effective Operation of a crushing machine is made possible, or its impact bar recording is easy to dismantle.
  • recesses or grooves may be formed, in which the jaws are arranged. This makes it possible to attach the jaws not only on a circumference or an outer side of the support disks, but to integrate in the support disks so that the jaws can be supported on the support disks. Forces acting on the jaws in the radial direction of the rotor can be introduced into the support disks in a particularly simple manner.
  • connection security may be formed as at least one Sich ceremoniessschraubtress between the jaw and the support plate, wherein a screw can be inserted in a receiving material facing the top of the jaw and bolted to the support plate.
  • the jaw can then, for example, engage over a shoulder formed in the support disk so that a screw can be screwed into the support disk in the direction of the rotor shaft.
  • the jaw can then be made comparatively wide, whereby the advantage is achieved that abrasions administrater wear of the rotor can be reduced in the area around the blow bar.
  • the screw is an expansion screw
  • a force acting on the screw connection can be advantageously absorbed by the expansion screw, without causing unwanted movement of the screwed components.
  • a bias of the expansion screw and an undesirable loosening of the same due to the operation of the rotor is avoided.
  • the rotor can then be used even at very different temperatures, without weakening the screw connection.
  • the jaw is particularly wear-resistant if it is made of steel or cast iron having a hardness of at least 200 Brinell (HB), preferably at least 400 Brinell (HB), more preferably at least 500 Brinell (HB). If the rotor caps, side plates or Sliding fuses, these may also be formed from this material. Characterized in that the jaw by means of the screw connection is independent of the rotor shaft with the support disks on the support disks mountable, the rotor shaft can be annealed with the support disks without the jaw, so that jaws can be mounted with a comparatively harder material after annealing to the support disks ,
  • the first jaw is therefore a replacement jaw that replaces the jaw originally welded to the support disks.
  • the first jaw is exchangeable by means of the trained screw connection.
  • the rotor can be used in the event of an irreparable material eruption on the welded jaw by the inventive method for repair on. Further, it is also possible to adapt the rotor, depending on the design of the first jaw in terms of a positive connection with the blow bar, to any type of blow bar. Different fastening systems of blow bars on the market can thus be considered as needed.
  • the further advantages concerning the method according to the invention reference is made to the description of advantages of the rotor according to the invention. Further embodiments of the method will become apparent from the dependent claims on the device claim 1.
  • mounting plates 20 for protective caps 21 are welded to the support disks 13 and 14.
  • the protective caps 21 are releasably secured in a direction indicated by an arrow 22 of the rotor 10 in front of the jaw 15 position on the rotor 10 with the mounting plates 20 by means of a screw 23 that they can be replaced.
  • four side protection plates 25 are releasably secured to side surfaces 24 of the support disks 14 by means of screw 26.
  • the between jaws 15 and 16 in the rasp bars 17 inserted blow bars 11 are secured against displacement by means of sliding securing 27.
  • the displacement lock 27 is designed as a latch 28 and fastened by means of screw 29 releasably secured to the jaws 15 and 16.
  • the bolt 28 engages in a groove 30 at end faces 31 of the blow bars 11 a.
  • the protective caps 21 and the side protection plates 25 are also formed of a comparatively harder material than the support disks 13 and 14 and the rotor shaft 12.
  • the Fig. 5 shows the blow bar 11, wherein the blow bar 11 has an axially extending groove 49.
  • the jaw 16 also has such a groove 50 which is formed so that in the grooves 49 and 50 in an arrangement of the beater bar 11 in the blow bar receptacle 17 between the jaws 15 and 16 a here not closer apparent Round rod can be inserted.
  • the round rod ensures a positive fixation of the blow bar 11 in the blow bar receptacle 17. Slipping out of the round rod from the grooves 49 and 50 is thereby avoided that they are covered with the bolt 28 in the assembled state.

Landscapes

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

Claims (19)

  1. Rotor (10, 59, 70, 81) pour un concasseur à percussion, pour réduire un matériau de construction, des roches ou similaires, ledit rotor étant formé par un arbre de rotor (12, 60) ayant des plaques de support (13, 14, 61, 74, 85) disposées dans une direction axiale de l'arbre de rotor et des dispositifs de sécurité pour des tapées disposés sur les plaques de support, une tapée (11) pouvant être sécurisée dans une manière amovible aux plaques de support au moyen du dispositif de sécurité, ledit dispositif de sécurité étant formé par au moins deux brides (15, 16, 63, 64, 71, 72, 83, 84), lesdites brides étant reliées solidaires aux plaques de support, lesdites brides étant disposées sur les plaques de support à une distance de l'une à l'autre de telle manière que les brides forment une réception de tapée (17) et la tapée peut être disposée entre les brides, au moins une première bride (15, 16, 63, 64, 71, 72, 83, 84) étant reliée dans une manière amovible aux plaques de support au moyen d'une connexion de vis (19, 65, 73, 82), ladite connexion de vis (19, 65, 73, 82) étant formée directement entre la première bride et la plaque de support (13, 14, 61, 74, 85), caractérisé en ce qu'
    une vis (42) est insérée dans une surface latérale (39, 40) de la première bride tournée vers la tapée et est vissée à la plaque de support, ladite première bride étant formée d'un matériau qui est plus duré par rapport au matériau duquel les plaques de support sont formées.
  2. Rotor selon la revendication 1,
    caractérisé en ce qu'
    une deuxième bride (15, 16, 63, 64, 71, 72, 83, 84) est reliée dans une manière amovible aux plaques de support (13, 14, 61, 74, 85) par une connexion de vis (19, 65, 73, 82), ladite deuxième bride étant formée d'un matériau qui est plus duré par rapport au matériau duquel les plaques de support sont formées.
  3. Rotor selon la revendication 1 ou 2,
    caractérisé en ce que
    la réception de tapée (17) comprend une bride frontale (15, 63, 71, 83) et une bride arrière (16, 64, 72, 84) par rapport au sens de rotation du rotor (10, 59, 70, 81).
  4. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    des évidements (18, 62, 80) ou des rainures sont formés dans les plaques de support (13, 14, 61, 74, 85), chaque évidement (18, 62, 80) ou rainure s'étendant dans la direction axiale de l'arbre de rotor (12, 60), les brides (15, 16, 63, 64, 71, 72, 83, 84) étant disposées dans lesdits évidements (18, 62, 80) ou lesdites rainures.
  5. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bride (15, 16, 63, 64, 71, 72, 83, 84) est formée en tant qu'élément de profile, qui s'étend à travers d'une surface entière du rotor (10, 59, 70, 81) dans la direction axiale.
  6. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la tapée (11) peut être échangée dans la réception de tapée (17) et peut être sécurisée de manière indirect sur au moins une bride (15, 16, 63, 64, 71, 72, 83, 84).
  7. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la vis (42) s'étend à travers la bride (15, 16, 63, 64, 71, 72, 83, 84) et sort d'une surface inférieure (36, 37) de la bride détournée des matériaux d'alimentation et est vissée dans la plaque de support (13, 14, 61, 74, 85).
  8. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bride (15, 16, 63, 64, 71, 72, 83, 84) est reliée à la plaque de support (13, 14, 61, 74, 85) au moyen d'un blocage de connexion (66, 75, 86) dans une manière indirect, démontable ou permanent, ledit blocage de connexion étant formé pour recevoir une force centrifuge radiale.
  9. Rotor selon la revendication 8,
    caractérisé en ce que
    le blocage de connexion (66) est réalisé en tant que rainure longitudinale s'étendant axialement (68, 69) dans chaque bride (63, 64) et dans la plaque de support (61), une clavette (67) s'engageant dans ledit blocage de connexion (66).
  10. Rotor selon la revendication 8 ou 9,
    caractérisé en ce que
    le blocage de connexion (75) est réalisé en tant qu'au moins une indentation (78, 79) s'étendant axialement dans la plaque de support (74), ladite indentation (78, 79) superposant un rebord (76, 77) correspondant dans la bride (71, 72).
  11. Rotor selon l'une quelconque des revendications 8 à 10,
    caractérisé en ce que
    le blocage de connexion (86) est réalisé en tant qu'au moins une connexion de vis de blocage (87) entre la bride (83, 84) et la plaque de support (85), une vis (93) étant insérée dans un côté supérieure de la bride tourné vers les matériaux d'alimentation et étant vissée à la plaque de support.
  12. Rotor selon l'une quelconque des revendications 8 à 11,
    caractérisé en ce que
    le blocage de connexion est réalisé en tant qu'au moins un joint de soudure (46, 47) entre la bride (15, 16) et la plaque de support (13, 14), ledit joint de soudure ne s'étendant que le long d'un côté supérieure (44, 45) de la bride tourné vers les matériaux d'alimentation.
  13. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'
    un capuchon de protection du rotor (10, 59, 70, 81) est relié dans une manière amovible aux plaques de support (13, 14, 61, 74, 85) devant la bride (15, 16, 63, 64, 71, 72, 83, 84) par rapport au sens de direction de rotation du rotor au moyen de connexion de vis (23).
  14. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    des plaques de protection latérales (25) du rotor (10, 59, 70, 81) sont disposées sur chaque plaque de support (61, 74, 85) extérieure par rapport à une direction axiale de l'arbre de rotor (12, 60), lesdites plaques de protection latérales étant sécurisées dans une manière amovible à chaque surface (24) latérale des plaques de support extérieures au moyen d'une connexion de vis (26).
  15. Rotor selon la revendication 14,
    caractérisé en ce que
    les plaques de protection (25) latérales saillie les plaques de support (61 ,74, 85) extérieures dans un direction radiale, des blocages de déplacement (27) pour les tapées (11) étant disposés sur les surfaces (24) latérales des plaques de support extérieures ou des brides (15, 16, 63, 64, 71, 72, 83, 84) au moyen d'une connexion de vis (29), lesdites plaques de protection latérales saillant les blocages de déplacement dans un direction axiale.
  16. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la vis (42, 93) est une vis calibrée.
  17. Rotor selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bride (15, 16, 63, 64, 71, 72, 83, 84) est en acier ou en fonte ayant une dureté d'au moins 200 Brinell (HB), en préférence d'au moins 400 Brinell (HB), notamment en préférence d'au moins 500 Brinell (HB).
  18. Concasseur ayant un rotor (10, 59, 70, 81) selon l'une quelconque des revendications,
    caractérisé en ce que
    le concasseur comprend des tapées (11), ladite tapée consistant en un matériau de fonderie, un acier de construction à grain fin ou une insertion céramique, ladite tapée comprenant une dureté de 150 à 600 Brinell (HB), en préférence 350 à 550 Brinell (HB).
  19. Procédé pour maintenir un rotor (10, 59, 70, 81) pour un concasseur à percussion, pour réduire un matériau de constructions, des roches ou similaire, ledit rotor étant formé par un arbre de rotor (12, 60) ayant des plaques de support (13, 14, 61, 74, 85) disposées dans un direction axiale de l'arbre de rotor et des dispositifs de sécurité pour des tapées disposés sur les plaques de support, une tapée (11) pouvant être sécurisée dans une manière amovible aux plaques de support au moyen du dispositif de sécurité, ledit dispositif de sécurité étant formé par au moins deux brides (15, 16, 63, 64, 71, 72, 83, 84), lesdites brides étant reliées solidaires aux plaques de support, lesdites brides étant disposées sur les plaques de support à une distance de l'une à l'autre de telle manière que les brides forment une réception de tapée (17) et la tapée peut être disposée entre les brides,
    caractérisé en ce qu'
    au moins une bride (15, 16, 63, 64, 71, 72, 83, 84) est enlevée de la plaque de support par usinage ou un enlèvement non-mécanique, des perçage de filetage (43) étant formés dans les plaques de support dans une zone de la bride enlevée, une première bride étant reliée dans une manière amovible aux plaques de support au moyen d'une connexion de vis (19, 65, 73, 82), la première bride étant formée d'un matériau plus duré par rapport au matériau duquel les plaques de support sont formées.
EP15196660.3A 2014-12-10 2015-11-27 Rotor et procede de reparation d'un rotor Not-in-force EP3031526B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014225479.5A DE102014225479B4 (de) 2014-12-10 2014-12-10 Rotor und verfahren zur instandsetzung eines rotors

Publications (3)

Publication Number Publication Date
EP3031526A2 EP3031526A2 (fr) 2016-06-15
EP3031526A3 EP3031526A3 (fr) 2016-07-06
EP3031526B1 true EP3031526B1 (fr) 2017-06-28

Family

ID=54780098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15196660.3A Not-in-force EP3031526B1 (fr) 2014-12-10 2015-11-27 Rotor et procede de reparation d'un rotor

Country Status (2)

Country Link
EP (1) EP3031526B1 (fr)
DE (1) DE102014225479B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3985173A2 (fr) 2017-12-14 2022-04-20 Hamm AG Rouleau de traitement du sol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751132B (zh) * 2021-08-27 2023-02-21 江苏正昌粮机股份有限公司 一种高效锤片式粉碎机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR431241A (fr) * 1911-02-03 1911-11-06 Walther Feld Procédé pour la récupération de l'ammoniaque de gaz, vapeurs et liquides par l'anhydride sulfureux
DE1013499B (de) * 1954-02-11 1957-08-08 Soest Ferrum Appbau G M B H Schlagleiste fuer die Rotoren von Prallmuehlen od. dgl.
DE2147920A1 (de) * 1971-09-25 1973-03-29 Hazemag Hartzerkleinerung Schutzvorrichtung fuer prallmuehlenrotoren
GB2128499A (en) * 1982-10-14 1984-05-02 Dresser Europe Sa Impact breakers
DE3525442C2 (de) * 1985-07-17 1994-10-20 Hermann Schroedl Schlagleiste für einen Prallbrecherrotor
DE3905492A1 (de) * 1989-02-23 1990-08-30 Hoffmann Albert Kg Schutzschild fuer scheiben eines hammerbrecherrotors
DE4037036C1 (en) * 1990-11-22 1992-06-25 Kleemann + Reiner Gmbh Maschinen- Und Anlagenbau, 7320 Goeppingen, De Impact stone crusher with trough-shaped housing - has aresting wedge displaceable orthogonally in guide groove wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3985173A2 (fr) 2017-12-14 2022-04-20 Hamm AG Rouleau de traitement du sol

Also Published As

Publication number Publication date
DE102014225479B4 (de) 2017-04-13
EP3031526A3 (fr) 2016-07-06
DE102014225479A1 (de) 2016-06-16
EP3031526A2 (fr) 2016-06-15

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