EP2394741B1 - Werkzeugeinsatz für eine vorrichtung zum zerkleinern von stückigem material und mit einem solchen einsatz ausgestattete vorrichtung - Google Patents

Werkzeugeinsatz für eine vorrichtung zum zerkleinern von stückigem material und mit einem solchen einsatz ausgestattete vorrichtung Download PDF

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Publication number
EP2394741B1
EP2394741B1 EP11166317.5A EP11166317A EP2394741B1 EP 2394741 B1 EP2394741 B1 EP 2394741B1 EP 11166317 A EP11166317 A EP 11166317A EP 2394741 B1 EP2394741 B1 EP 2394741B1
Authority
EP
European Patent Office
Prior art keywords
tool insert
impact
tool
stop location
insert according
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
EP11166317.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2394741A1 (de
Inventor
Dipl.-Ing. Bruno Mayer
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.)
Stahlwerke Bochum AG
Original Assignee
Stahlwerke Bochum AG
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 Stahlwerke Bochum AG filed Critical Stahlwerke Bochum AG
Priority to SI201130941A priority Critical patent/SI2394741T1/sl
Priority to RS20160739A priority patent/RS55178B1/sr
Publication of EP2394741A1 publication Critical patent/EP2394741A1/de
Application granted granted Critical
Publication of EP2394741B1 publication Critical patent/EP2394741B1/de
Priority to HRP20161094TT priority patent/HRP20161094T1/hr
Active 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
    • B02C13/26—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
    • B02C2013/29—Details devices for manipulating beater elements

Definitions

  • the invention relates to a tool insert for a device for comminuting lumpy material, with a striking portion having on its free outer side a striking surface, which meets the material to be comminuted in practical use, and with a mounting portion facing away from the club face Side is connected to the impact portion and serves for releasably securing the tool insert in the device.
  • Such tool inserts are, for example, protective caps or hammers of rotors which are used in crushers or shredders for crushing rock, demolition materials, motor vehicles and the like.
  • Such device is eg off US 484 86 81 known.
  • the invention relates to such a device for crushing lumpy material, which is equipped with a tool insert of the type in question here.
  • a tool insert of the type in question here.
  • Such devices are used for example for crushing metal, rock or demolition materials. Their tool inserts are exposed to extreme loads, both in the area of their striking surfaces which are directly in contact with the material to be comminuted, and in the area of their surfaces Suspended attachment section in which they are stored in the respective crushing machine.
  • the tool inserts are usually mounted in a crushing devices of the type in question here pivotally mounted on a rotor or fixed.
  • the rotor has a plurality of axles mounted in the rotor, on each of which at least one tool insert is pivotally mounted or fixed via a bearing eye formed in its mounting portion.
  • the pivotally mounted tools can thus perform oscillations in operation during a corresponding rotational movement of the rotor in operation, so that they smash the material striking them with particularly high kinetic energy.
  • the tool inserts are made as castings. But they can also be manufactured as a welded construction, as a burning part or as a forged part.
  • the impact portions of the tool inserts are subjected to a high impacting abrasive wear. Therefore, they must be replaced at regular intervals.
  • the object of the invention was to provide a tool insert available, which can be mounted with less effort in a device for crushing lumpy material.
  • a device for crushing lumpy material should be specified, the tool insert can be replaced in a relatively simple manner.
  • the solution according to the invention of the above-mentioned object consists in a device designed according to claim 11.
  • An advantageous embodiment of the device according to the invention is specified in the claim back to claim 11.
  • the invention provides a tool insert for a device for comminuting lumpy material available, which in accordance with the above state of the art explained a striking portion having on its free outer side a striking surface, which meets the material to be crushed in practical use, and having a mounting portion which is connected on a side facing away from the club face with the striking portion and for releasably securing the Tool insert in the device is used.
  • At least one impact point projecting from the striking surface is present at least on the striking section, to which a suspension element can be coupled.
  • This standing on the striking surface anchor point is freely accessible and can be easily reached by the fitter.
  • a suspension means such as a lifting strap or rope to couple with the tool insert according to the invention, for coupling the respective support means of course also suitable, supported by the support means stop means, such as hooks or shackles, can be used.
  • the tool insert can be brought by means of a crane or the like in its mounting position and held until the bearing shaft is mounted on which the tool insert is mounted in its fully assembled position.
  • two or more protrusions in accordance with the invention may be present on the striking surface, if this is expedient for reasons of manipulability of the tool insert during its assembly. This can be displayed, for example, if the Tool insert very large or the space is very cramped, so that a particularly secure and accurate positioning of the tool insert is required.
  • the existing on his club face stopper is no longer needed.
  • the invention takes targeted purchase that the attachment point is very quickly destroyed and removed so quickly by being hit on him to be shredded material that it is no longer available after a short period of use.
  • the impact point present on the striking surface thus has almost no influence on the normal function and the impact force which the tool insert produces in practical use.
  • the invention provided on the club face stopper is used only during assembly, it can be attached to the tool insert in any way. It is only essential that the connection between the tool insert and the attachment point is sufficient to safely absorb the loads occurring during assembly of a new insert.
  • One possibility for this is to materially connect the attachment point, ie, for example, by welding, gluing, soldering or in a comparable manner to the impact section.
  • the attachment point may have a predetermined breaking point in the region of its transition to the impact section at which the Anchor point intentionally breaks when hitting the material to be shredded.
  • the attachment point may have a passage opening. He may, for example, be hook-shaped, so that a tape or rope can be coupled in a simple manner directly to the tool insert.
  • the abutment point in the manner of a provided with a stop edge for coupling the support means pocket-shaped recess in the face of the striking portion.
  • the stop edge may be formed as a web which extends freely over the pocket-shaped recess of the attachment point.
  • the pocket-shaped recess is formed in the manner of a cavity in the impact section, but the stop edge can also be formed on the insertion opening of the cavity bounding edge of the roof section, through which the recess is covered to the face of the impact section.
  • the inventive design proves to be advantageous in all heavy and large-volume impact tool inserts, which can be moved due to their high weight only with the help of a crane or a comparable lifting device.
  • the possibility opened by the invention of a simple and yet accurate positioning of the tool insert has a particularly favorable effect if the fastening section has a bearing opening for the pivotable fastening of the tool insert in the device for comminuting lumpy material, if the tool insert according to the invention is therefore intended to to be stored on an axle or shaft in the respective device. This applies in particular when the storage is a pivotable storage, which does not counteract the tool insert to be mounted.
  • the attachment section also has an attachment point for the releasable coupling of a suspension element.
  • this attachment point can be used, for example, during the assembly of a tool insert according to the invention for coupling a rope or band with which the alignment of the insert at the assembly location is supported.
  • Especially useful proves the existing on the fastener, for coupling a suspension means certain attachment point, however, during disassembly.
  • no wear attachment point for safe coupling of those suspension means can be used with which a worn tool insert is removed after its dismantling.
  • the attachment point in the manner of an eyelet having a through hole for coupling the support means or be formed, for example, hook-shaped. If the space occupied by a protruding abutment point is not available in the respective comminution device, it is also conceivable to form the abutment point in the manner of a pocket formed in the attachment section into which the suspension element engages for coupling.
  • a tool insert according to the invention can be produced inexpensively by being produced by casting technology, in particular from a cast iron alloy, with the zones of the tool insert subjected to particularly wear being subjected to wear
  • reinforcing elements may be cast from another, higher-strength and less wear-sensitive material.
  • a device according to the invention for the comminution of lumpy material comprising at least one tool insert designed according to the invention onto which the material to be comminuted meets in the tool insert, wherein a bearing is provided in the device on which the tool insert is releasably secured with its attachment portion.
  • tool insert 1 is a cast in one piece from cast iron protective cap for a rotor R of a device S for crushing lumpy material M in material parts MT, as shown in Fig. 5 are shown.
  • the tool insert 1 which is shaped in a manner known per se, has a striking section 2 and a fastening section 3 connected thereto.
  • the beating section 2 is crown-like in the radial direction outwardly curved so that it is arcuate in side view. It has a thickness D2 measured in the radial direction and a width B2 measured in the axial direction. Its outer striking surface 5 accordingly has the shape of a cylindrical surface portion.
  • the attachment portion 3 is integrally formed on the inside of the impact portion 2 and has a centrally located in the side view with respect to the impact portion 2 central region 6, measured in the axial direction width B6 is less than the width B2 of the impact portion 2. Based on the width B2 of the impact section 2, the central region 6 is arranged off-center, so that the impact section 2, as in Fig. 2 shown on the one side laterally beyond the central region 6 also out than on the opposite side.
  • a bearing opening 7 is formed in the central region 6, a bearing opening 7 is formed. Its center lies on a degree G, which halves the angle covered by the impact section 2 angle range.
  • the axis of rotation X of the bearing opening 7 is aligned axially parallel to the axis about which the impact portion 2 is curved with its face 5.
  • the bearing opening 7 serves to fasten the tool insert 1 on the rotor R of the device S.
  • the attachment points 10,11 each have a passage opening 12,13, whose longitudinal axis aligned axially parallel to the axis X. is.
  • the projections 10,11 Based on the width B2 of the impact section 2 ( Fig. 2 ) are the projections 10,11 aligned so that they are centered to a running through the center of gravity P of the tool insert 1 normal to the club face 5, while in side view ( Fig. 1 ) Seen in each case at the same distance from their associated narrow side 14,15 of the striking portion 2 are arranged mirror-symmetrically to the degrees G.
  • the respective passage opening 12,13 of the attachment points 10,11 is formed so that with the attachment points 10,11 each one in Fig. 1 only indicated by dashed lines support means T1, T2, such as a rope or band, by means of a suitable stop means 16,17, such as a hook or shackle, can be coupled to be attached to a crane, not shown here.
  • support means T1, T2 such as a rope or band
  • a suitable stop means 16,17 such as a hook or shackle
  • the attachment points 10,11 are integrally connected to the tool insert 1 by they have been cast directly to him during the casting production of the tool insert 1. Equally, however, it is also possible to prefabricate the attachment points 10, 11 separately and then fasten them in a suitable manner to the impact section 2.
  • the impact section 3 of the tool insert 1 is exposed to high impact loads due to material to be comminuted or fragments of the material striking its face 5. These loads are so high that the attachment points 10,11 are already removed after a short period of use and the impact surface 5 has a substantially uniformly curved shape in the region of the attachment points 10,11.
  • the rapid removal of the attachment points 10, 11 can be assisted by the fact that in the area of the transitions 18, 19 of the attachment points 10, 11 to the impact surface 5, a material weakening 20 is specifically provided.
  • the respective material weakening 20 may be designed as a predetermined breaking point at which the attachment points 10, 11 break when material strikes the attachment points 10, 11 from a direction deviating from a normal on the striking surface 5. In this way, despite the respective material weakening 20 ensures that the attachment points 10,11 can safely absorb the weight forces occurring during transport and assembly of the tool insert 1.
  • an abutment point 21 designed in the manner of an eyelet is likewise integrally formed on the central region 6 of the tool insert 1 and projects beyond the rear outer surface 22 of the central region 6.
  • the passage opening 23 of the attachment point 21 is aligned and formed as the through holes 12,13 of the attachment points 10,11, so that for disassembly or to support the assembly with the attachment point 21 easily a suitable support means 24, such as a rope or belt, either directly or via one Slings 25 serving hooks or shackles can be coupled with the tool insert 1.
  • the support means 24 and the respective stop means 25 are in Fig. 1 also indicated only by dashed lines.
  • tool inserts 31,43,44 are each a casting technology produced in one piece hammer, as it is also typically mounted on the rotor R of the device S.
  • the basic shape of the tool inserts 31,43,44 which are also cast in one piece from cast iron material, corresponds to the basic form of commercially available impact hammers for shredders.
  • the tool inserts 31, 43, 44 each have a barrel-shaped outwardly arched, in side view arcuately curved, striking portion 32 of thickness D32 measured in the radial direction and width B32 measured in the axial direction.
  • the outwardly directed impact surface 33 of the impact portion 32 is respectively curved in a corresponding manner and forms as the impact surface 3 of the tool insert 1 a section of a hollow cylinder jacket surface.
  • each one with respect to the impact portion 32 centrally aligned mounting portion 34 is formed, which has a bearing opening 35.
  • the center of the bearing opening 35 coincides in this case with the center of the curvature of the impact portion 32.
  • Your longitudinal axis is right Accordingly, coincide with the axis of rotation D, around which the tool insert 31 oscillates in practical use.
  • the attachment point 36 has a passage opening 37 whose longitudinal axis is aligned parallel to the axis of rotation D.
  • the stopper point 36 is positioned at a central location on the striking surface 32. Due to the symmetrical mass distribution of the tool insert 31, it is thus aligned centrally with respect to the position of a normal through the center of gravity P 'of the tool insert 31 normal to the striking surface 33.
  • the through holes 37,40 of the attachment points 36,38 are aligned and designed so that with them for disassembly or assembly each problem with a suitable support means 41, such as a rope or band, either directly or via a serving as a stop means 42 hook or shackle the tool insert 31 can be coupled.
  • a suitable support means 41 such as a rope or band
  • a serving as a stop means 42 hook or shackle the tool insert 31 can be coupled.
  • Fig. 3 are the respective support means 41 and the stop means 42 also indicated in each case only by dashed lines.
  • the stop point 36 arranged on the impact surface 32 is already worn away after a short period of use, so that the impact surface 32 soon also has a substantially uniformly curved shape in the area of the attachment point 36.
  • the stop edge 45 As in Fig. 6 shown to be designed as a freestanding bridge.
  • the stop edge 48 provided there may also be formed on the insertion opening 49 of the cavity 47 upwardly bounding edge of the roof section by which the cavity 46 is covered towards the striking surface 33 of the striking portion 32.
  • a shredder known per se, as used for example for crushing lumpy, large-volume material M, such as automobile bodies, rubble, overburden or larger rocks.
  • the material M and parts obtained after comminution MT are in Fig. 5 indicated only by arrows.
  • the device S comprises a rotor R, which rotates about a rotational axis DR. Distributed on its circumference at regular angular intervals are on the rotor R six serving as impact hammers tool inserts 31 are arranged.
  • the tool inserts 31 are each pivotally mounted on a guided through their respective bearing opening 35 axis 51 so that they perform in practical operation due to the rotation of the rotor R pendulum movements about their respective assigned axis 51.
  • the remaining between the tool inserts 31 spaces are occupied by serving as baffles tool inserts 1.
  • the tool inserts 1 are held immovably by means of their respective bearing opening 7 pushed axes 52 on the rotor R.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crushing And Grinding (AREA)
EP11166317.5A 2010-06-02 2011-05-17 Werkzeugeinsatz für eine vorrichtung zum zerkleinern von stückigem material und mit einem solchen einsatz ausgestattete vorrichtung Active EP2394741B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201130941A SI2394741T1 (sl) 2010-06-02 2011-05-17 Vložek za orodje za napravo za drobljenje kosovnega materiala in naprava, opremeljena s takim vložkom
RS20160739A RS55178B1 (sr) 2010-06-02 2011-05-17 Alatni uložak uređaja za drobljenje materijala u komadima i uređaj opremljen sa takvim uloškom
HRP20161094TT HRP20161094T1 (hr) 2010-06-02 2016-08-26 Alatni umetak za uređaj za usitnjavanje komadnog materijala, te uređaj s takvim umetkom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010022492 DE102010022492A1 (de) 2010-06-02 2010-06-02 Werkzeugeinsatz für eine Vorrichtung zum Zerkleinern von stückigem Material und mit einem solchen Einsatz ausgestattete Vorrichtung

Publications (2)

Publication Number Publication Date
EP2394741A1 EP2394741A1 (de) 2011-12-14
EP2394741B1 true EP2394741B1 (de) 2016-06-22

Family

ID=44816972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11166317.5A Active EP2394741B1 (de) 2010-06-02 2011-05-17 Werkzeugeinsatz für eine vorrichtung zum zerkleinern von stückigem material und mit einem solchen einsatz ausgestattete vorrichtung

Country Status (12)

Country Link
EP (1) EP2394741B1 (lt)
DE (1) DE102010022492A1 (lt)
DK (1) DK2394741T3 (lt)
ES (1) ES2588977T3 (lt)
HR (1) HRP20161094T1 (lt)
HU (1) HUE029620T2 (lt)
LT (1) LT2394741T (lt)
PL (1) PL2394741T3 (lt)
PT (1) PT2394741T (lt)
RS (1) RS55178B1 (lt)
RU (1) RU2569001C2 (lt)
SI (1) SI2394741T1 (lt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112337570B (zh) * 2020-10-15 2022-01-25 中联润世新疆煤业有限公司 一种适用于多种地形的矿山破碎机
PL249314B1 (pl) * 2023-05-04 2026-03-23 Kghm Zanam Spolka Akcyjna Młot kruszarki młotkowej
DE102023212521B3 (de) 2023-12-12 2025-03-13 Lindemann Germany GmbH Rotorschutzkappe, Rotor und Schredder mit Rotorschutzkappe

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046326A (en) * 1975-11-06 1977-09-06 Minneapolis Electric Steel Castings Company Shell liner assembly
US4141512A (en) * 1978-01-09 1979-02-27 Adirondack Steel Specialties, A Division Of Adirondack Steel Casting Co., Inc. Construction of a hammer for hammer mill
US4235386A (en) * 1978-08-11 1980-11-25 Minneapolis Electric Steel Castings Company Shell liner assembly for ore grinding mills
US4310125A (en) * 1979-10-15 1982-01-12 Abex Corporation Hammer for hammer mill
US4394982A (en) * 1981-03-30 1983-07-26 Midland-Ross Corporation Liner plate for grinding mills
US4558826A (en) * 1982-07-12 1985-12-17 Evans Products Company Hammer for automobile shredding mills
CA1301731C (en) * 1987-06-02 1992-05-26 Klas-Goran Eriksson Wear resistant element
SU1715408A1 (ru) * 1990-01-25 1992-02-28 Свердловский Городской Центр Научно-Технического Творчества Молодежи Било дл молотковых мельниц
DE19528512C2 (de) 1995-08-03 2001-02-22 Swb Stahlformgusgmbh Verschleißteile und Verfahren zu deren Herstellung
DE19756275C1 (de) 1997-12-18 1999-06-02 Svedala Lindemann Gmbh Rotor für eine Zerkleinerungsmaschine
DE19927765C2 (de) 1999-06-17 2003-05-08 Metso Lindemann Gmbh Verfahren und Vorrichtung zur Demontage/Remontage von Hämmern, Hammerachsen und/oder Schutzkappen der Rotoren von Hammerbrechern

Also Published As

Publication number Publication date
SI2394741T1 (sl) 2016-10-28
DK2394741T3 (en) 2016-10-03
RU2569001C2 (ru) 2015-11-20
RS55178B1 (sr) 2017-01-31
ES2588977T3 (es) 2016-11-08
LT2394741T (lt) 2016-10-25
RU2011121220A (ru) 2012-12-10
HRP20161094T1 (hr) 2016-11-04
DE102010022492A1 (de) 2011-12-08
HUE029620T2 (en) 2017-03-28
PL2394741T3 (pl) 2016-12-30
PT2394741T (pt) 2016-09-05
EP2394741A1 (de) 2011-12-14

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