EP3137217B1 - Broyeuse munie d'une enclume fixe et de marteaux rotatifs - Google Patents

Broyeuse munie d'une enclume fixe et de marteaux rotatifs Download PDF

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Publication number
EP3137217B1
EP3137217B1 EP15737962.9A EP15737962A EP3137217B1 EP 3137217 B1 EP3137217 B1 EP 3137217B1 EP 15737962 A EP15737962 A EP 15737962A EP 3137217 B1 EP3137217 B1 EP 3137217B1
Authority
EP
European Patent Office
Prior art keywords
hammer
insert
hammer strike
anvil
insert piece
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
EP15737962.9A
Other languages
German (de)
English (en)
Other versions
EP3137217A1 (fr
Inventor
Alexander Koslow
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.)
Akai & Co KG GmbH
Original Assignee
Akai & Co KG 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
Priority claimed from DE102014016322.9A external-priority patent/DE102014016322A1/de
Application filed by Akai & Co KG GmbH filed Critical Akai & Co KG GmbH
Priority to PL15737962T priority Critical patent/PL3137217T3/pl
Priority claimed from PCT/DE2015/000198 external-priority patent/WO2015165433A1/fr
Publication of EP3137217A1 publication Critical patent/EP3137217A1/fr
Application granted granted Critical
Publication of EP3137217B1 publication Critical patent/EP3137217B1/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
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/16—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters hinged to the rotor
    • 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

Definitions

  • the invention relates to hammer irons for a comminuting machine with a fixed anvil, comminuting machines with such hammer irons and methods for operating such comminuting machines
  • Such a crusher is from US1686128 known.
  • the most protruding part of the hammer must neither fall below nor exceed a predetermined minimum or maximum. Avoid touching the hammer head and anvil, as this would destroy the machine. Exceeding the maximum permissible gap or distance between the hammer head and anvil would also significantly impair the functionality of the machine. In such a case, the size of the material to be comminuted would no longer correspond to the desired grain size.
  • the size of the gap between hammer head and anvil is therefore of crucial importance for proper operation of such a size reduction machine.
  • a worn hammer had to be replaced with a new hammer. This is very time-consuming, as until now the only solution was to get a new hammer.
  • a new hammer is very expensive. It is therefore an endeavor of the professional world to extend the service life (service life) of a hammer.
  • the object of the invention is to provide improved hammer hammers for a comminuting machine of the type mentioned at the outset, which have a longer service life in order to reduce operating costs without negatively affecting the quality of the comminuted product.
  • the invention discloses hammer irons for a size reduction machine with a fixed anvil, the hammer irons being attached to a rotor of the size reduction machine in a pivotable manner via a pivot pin.
  • An insert with a receiving opening for the pivot pin is provided in the hammer, which can be installed in a first orientation or in a second orientation.
  • the receiving opening defines a first contact surface for the pivot pin in the first orientation of the insert and a second contact surface for the pivot pin in the second orientation of the insert.
  • the first contact surface in the first orientation of the insert has a different distance to the hammer head (and thus to the anvil) than the second contact surface in the second orientation of the insert.
  • the pivot pin is guided through an elongated slot which is attached eccentrically in the longitudinal direction of the insert and defines opposing contact surfaces.
  • the elongated insert is interchangeably installed in the longitudinal extension of the hammer.
  • the position of the oblong hole introduced in the longitudinal direction eccentrically in the insert for receiving the pivot pin determines the different thicknesses of the two end-side cheeks of the insert; the inside of the elongated hole facing the hammer head forms a contact surface on which the pivot pin rests when the hammer is in the swiveled-out operating state.
  • the two cheeks are located in the longitudinal direction at the respective end of an insert piece.
  • the eccentric elongated hole is to be designed in such a way that the distance between the elongated hole inner wall and the adjacent end point of the insert piece is different, viewed in the longitudinal direction of the insert piece and the centrifugal force occurring during rotation.
  • the decisive factor here is that when the insert piece is rotated in the hammer by 180 °, the distance between the hammer head and the contact surface is changed, and thus also the distance between the hammer head and anvil when the hammer is installed.
  • the insert has cheeks of different thicknesses at opposite ends.
  • the contact surface of one cheek of the insert rests against the pivot pin and determines the distance between the hammer head and the anvil.
  • the movement of the hammer in the direction of the anvil is limited by the contact of one cheek of the insert on the pivot pin.
  • the two opposite cheeks of the insert are of different thicknesses. In this way, they define different distances for the hammer head to the anvil, depending on which cheek of the insert the pivot pin comes into contact with.
  • the insert is provided interchangeably in the hammer, either in a snug fit or fastened by conventional fasteners.
  • the hammer can then be thrown so close to the anvil that a gap is formed between the anvil and hammer head that corresponds to the nominal size that would be formed by a new hammer.
  • an adequate response to hammer wear can be achieved. It is useful to keep inserts with different wall thicknesses of the cheeks in stock so that the area of use of an individual hammer and its service life can be optimally exploited.
  • the invention not only results in a longer service life for a hammer, but also has a not inconsiderable influence on the safety of the machine in the case of inserts with an elongated hole. If oversized or hard components are fed to the machine for shredding, the hammer guided in the elongated hole can move away from the anvil against the centrifugal forces, increasing the gap between the anvil and the hammer head. This is the additional advantage when the pivot pin around which the hammer rotates is arranged in an elongated hole of an insert in the hammer.
  • the Figures 1 to 3 show a first embodiment of a hammer for a shredding machine.
  • Figure 1 shows a plan view of a vertical shredding machine, in which the drive axis 3a of the rotor 3 runs perpendicular to the plane of the drawing.
  • disks 3b are arranged one above the other, each of which has openings for fastening the pivot bolts 6.
  • One or more hammers 4 are each suspended between two disks on a pivot pin, possibly with the use of spacer rings. Corresponding arrangements can also be used in shredding machines with a horizontally arranged drive shaft of the rotor.
  • the anvil 2 fixedly mounted on a machine frame 1 interacts with the hammer head 5 of a hammer 4 during operation.
  • a gap 10 is left between the anvil 2 and the hammer head 5. This gap 10 increases as the hammer head 5 is worn away. This gap 10 is important for the degree of fineness of the comminuted material.
  • the thickness (b) of the cheek 12, measured to the adjacent end of the insert 7, is greater than the thickness (a) of the opposite cheek 8, also measured to the end of the insert 7 adjacent to this cheek 8 two opposite cheeks 8; 12 corresponds to the amount of wear on the hammer head 5 at which it would have been necessary to replace the hammer 4 with a new hammer.
  • the insert 7 is interchangeably connected to the hammer 4 via fastening means 9 or via a snug fit.
  • the insert 7 has along its center line an elongated hole 11 through the cheeks 8; 12 is limited at the end of the insert and the pivot pin 6 receives.
  • the pivot pin 6 is in turn firmly connected to two adjacent disks 3 b of the rotor 3. In a new hammer, the pivot pin 6 rests on the thicker cheek 12 with the thickness (b) of the insert 7 and a gap 10 with nominal dimensions is created between the hammer head 5 and anvil 2.
  • FIGS. 2 and 3 show the insert 7 with the orientation corresponding to a new hammer, so that the pivot pin rests against the thicker cheek 12 during operation
  • FIGS. 4 and 5 show a second embodiment of a hammer according to the invention for a comminuting machine of the type mentioned at the beginning.
  • An anvil 12 is fixedly mounted on a machine frame and interacts with the hammer head 5 of a hammer 14 during operation.
  • a gap 010 is left between the anvil 12 and the hammer head 5. This gap 010 increases when the hammer head 5 is worn. This gap 010 is important for the degree of fineness of the comminuted material.
  • the pivot pin 16 When operating when the hammer is new, the pivot pin 16 rests against the thicker cheek 012 of the insert 17.
  • the cheek 18 opposite this cheek 012 in the insert 17 is unloaded.
  • the thickness (bb) of the cheek 012, measured to the adjacent end of the insert 17, is greater than the thickness (aa) of the opposite cheek 18, also measured to the adjacent end of the insert 17.
  • the difference in the thickness of the two cheeks 18; 012 corresponds to the amount of wear on hammer head 5 at which replacement of hammer 14 with a new hammer 14 would have been necessary.
  • the insert 17 is exchangeable and fixed in the hammer 14 with a precise fit, for example with fastening means.
  • the insert 17 has a cylindrical bore 011, which is provided eccentrically in the longitudinal direction of the insert 17, so that the respective cheek 18; 012 of different thickness, the distance between the hammer head 5 and the anvil 12 can be changed when the replaceable elongated insert 17 is rotated 180 °.
  • the pivot pin 16, which is fastened to the rotor disks 13b of the rotor, is guided through the cylindrical bore 011.
  • the pivot pin 16 rests on the inside of the cheek 012 of the insert 17 and creates a gap 010 between hammer head 5 and anvil 12 with nominal dimensions, corresponding to a cheek thickness (bb) in the insert 17.
  • FIGS. 4 and 5 show the insert 17 with an orientation corresponding to a hammer with wear, so that the pivot pin rests on the thinner cheek 18 during operation.
  • the insert (7) is preferably made of high-strength steel.
  • the contact surfaces for the pivot pin (6) can also be hardened.
  • Lubricating bores which can be connected to a central lubricating device, are preferably provided in the contact surfaces.
  • hammer irons 4 are mounted so tightly on a pivot pin that an adjacent hammer irons 4 prevents the insert 7 from falling out.
  • the hammers 4; 14 can be used optimally until they are finally worn out and the operating costs of the shredding machine can be reduced significantly.
  • the size of the gap between the anvil and the hammer head can be adjusted over a wide range and with an accuracy in the sub-millimeter range.
  • the hammer iron according to the invention are with with little additional effort.

Claims (7)

  1. Fer de martelage pour un broyeur à enclume fixe (2 ; 12), le fer de martelage (4 ; 14) étant fixé de manière pivotante à un rotor (3) du broyeur par l'intermédiaire d'un axe de pivotement (6 ; 16), dans le fer de martelage étant prévu un insert (7 ; 17) qui comporte une ouverture de réception (11 ; 011) avec une première surface d'appui (8 ; 18) et une seconde surface d'appui opposée (12 ; 012) pour l'axe de pivotement et qui est encastrable dans le fer de martelage dans une première orientation ou dans une seconde orientation tournée de 180°, la première surface d'appui dans la première orientation et la seconde surface d'appui dans la seconde orientation présentant des distances différentes par rapport à la tête de marteau (5 ; 15), caractérisé en ce que l'ouverture de réception est un trou oblong (11) qui est ménagé de manière excentrée dans l'insert, de sorte que des joues de l'insert opposées dans la direction longitudinale de la tête de marteau et servant de surfaces d'appui présentent des épaisseurs de paroi différentes.
  2. Fer de martelage selon la revendication 1, caractérisé en ce que l'insert (7 ; 17) est fabriqué en acier à résistance élevée.
  3. Fer de martelage selon une des revendications 1 à 2, caractérisé en ce que les surfaces d'appui comportent des trous de graissage qui sont reliables à un équipement de graissage central.
  4. Fer de martelage selon une des revendications 1 à 3, caractérisé en ce que l'insert (7 ; 17) est guidé de manière ajustée dans un évidement du fer de martelage.
  5. Broyeur comprenant des fers de martelage (4 ; 14) selon une des revendications 1 à 4, dont les surfaces d'appui présentent des écartements définis par rapport à une enclume fixe (2 ; 12).
  6. Broyeur selon la revendication 5, caractérisé en ce que plusieurs fers de martelage (4 ; 14) sont montés sur l'axe de pivotement de manière si serrée les uns contre les autres que des fers de martelage voisins (4 ; 14) empêchent l'insert (7 ; 17) de tomber.
  7. Procédé de fonctionnement d'un broyeur selon la revendication 5 ou 6, caractérisé en ce que plusieurs inserts (7 ; 17) avec des surfaces d'appui respectivement différentes sont tenus en stock, ce qui permet de régler la largeur de l'interstice (10 ; 010) entre enclume (2 ; 12) et tête de martelage (5 ; 15).
EP15737962.9A 2014-04-30 2015-04-23 Broyeuse munie d'une enclume fixe et de marteaux rotatifs Active EP3137217B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15737962T PL3137217T3 (pl) 2014-04-30 2015-04-23 Rozdrabniarka z nieruchomym kowadłem i obrotowymi bijakami młotkowymi

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014006354.2A DE102014006354B4 (de) 2014-04-30 2014-04-30 Zerkleinerungsmaschine mit feststehendem Amboss und rotierenden Hammerschlageisen (z.B. Hammermühlen oder Shredder)
DE102014016322.9A DE102014016322A1 (de) 2014-07-17 2014-10-28 Zerkleinerungsmaschine mit feststehendem Amboss und rotierenden Hammerschlageisen (z.B. Hammermühlen oder Shredder)
PCT/DE2015/000198 WO2015165433A1 (fr) 2014-04-30 2015-04-23 Broyeuse munie d'une enclume fixe et de marteaux rotatifs

Publications (2)

Publication Number Publication Date
EP3137217A1 EP3137217A1 (fr) 2017-03-08
EP3137217B1 true EP3137217B1 (fr) 2021-04-14

Family

ID=54325868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15737962.9A Active EP3137217B1 (fr) 2014-04-30 2015-04-23 Broyeuse munie d'une enclume fixe et de marteaux rotatifs

Country Status (9)

Country Link
US (1) US20170065982A1 (fr)
EP (1) EP3137217B1 (fr)
JP (1) JP6562949B2 (fr)
CN (1) CN106488805B (fr)
CA (1) CA2947336C (fr)
DE (1) DE102014006354B4 (fr)
DK (1) DK3137217T3 (fr)
ES (1) ES2864724T3 (fr)
PL (1) PL3137217T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019005890A1 (de) * 2019-08-21 2021-02-25 Trenn- und Sortiertechnik GmbH Prallmühle zur Zerkleinerung von Feststoffen

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Publication number Priority date Publication date Assignee Title
US1659499A (en) * 1924-04-04 1928-02-14 Sedberry James Bernard Grinding mill
US1686128A (en) * 1927-08-01 1928-10-02 William M Duncan Adjustable hammer for disintegrators and the like
US3738586A (en) * 1971-07-14 1973-06-12 Abex Corp An improved hammer for hammer mills
JPS4991879U (fr) * 1972-11-27 1974-08-08
JPS5648342Y2 (fr) * 1977-08-17 1981-11-12
US4142687A (en) * 1977-12-14 1979-03-06 The Heil Co. Adjustable arm for shredder hammer
JPS61263658A (ja) * 1985-05-18 1986-11-21 株式会社　尾上機械 粉砕機用打撃子
JPS61263659A (ja) * 1985-05-18 1986-11-21 株式会社　尾上機械 粉砕機用打撃子
CN2137180Y (zh) * 1992-06-16 1993-06-30 王高亮 调节锤
US5381975A (en) * 1993-06-11 1995-01-17 The Babcock & Wilcox Company Hammer for use in shredders having replaceable pin holes
CA2216389A1 (fr) * 1997-04-24 1998-10-24 John J. Martinek Rotor pour dechiqueteurs et broyeurs a marteaux
CN2496550Y (zh) * 2001-06-16 2002-06-26 刘钰 卧式复合反击破碎机
US8708263B2 (en) * 2004-08-11 2014-04-29 Roger T. Young Hammer
US7621477B2 (en) * 2005-06-11 2009-11-24 Genesis Iii, Inc. Hammermill hammer
JP2006061898A (ja) * 2004-08-30 2006-03-09 Haruyuki Takeshita 多用途破砕処理機
CN2920396Y (zh) * 2006-06-02 2007-07-11 简阳富强制粉设备有限公司 可调锤片式粉碎机
CN200970535Y (zh) * 2006-11-17 2007-11-07 于波涛 破碎机转子盘
US7757979B2 (en) * 2008-04-04 2010-07-20 Riverside Products, Inc. Hammermill hammer with pin-hole insert
CN201529561U (zh) * 2009-10-21 2010-07-21 陈威江 调节破碎机筛板高度的偏心顶块
DE202010014029U1 (de) * 2010-10-08 2012-01-09 Doppstadt Familienholding Gmbh Schlegel mit geteilter Schlegelspitze
US8807470B2 (en) * 2011-02-15 2014-08-19 Southwest Mill Supply Company Bushing and spacer system for hammer mills
US8800903B1 (en) * 2011-08-03 2014-08-12 Roger T. Young Multi-connector hammer and protective arm
CN202343253U (zh) * 2011-11-26 2012-07-25 洛阳大华重型机械有限公司 一种破碎机的锤头调节机构
CN104144749A (zh) * 2012-03-08 2014-11-12 埃斯科公司 粉碎机锤
US10413908B2 (en) * 2016-04-07 2019-09-17 Jacobs Corporation Hammer mill hammer with non-circular rod hole in inner bearing race

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
DK3137217T3 (da) 2021-04-26
CA2947336C (fr) 2022-03-15
CA2947336A1 (fr) 2015-11-05
CN106488805B (zh) 2018-10-09
EP3137217A1 (fr) 2017-03-08
ES2864724T3 (es) 2021-10-14
JP6562949B2 (ja) 2019-08-21
US20170065982A1 (en) 2017-03-09
DE102014006354A1 (de) 2015-11-05
DE102014006354B4 (de) 2016-12-22
CN106488805A (zh) 2017-03-08
JP2017514677A (ja) 2017-06-08
PL3137217T3 (pl) 2021-07-12

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