EP3365502B1 - Crushing blade arrangement of a crushing drum - Google Patents

Crushing blade arrangement of a crushing drum Download PDF

Info

Publication number
EP3365502B1
EP3365502B1 EP16801538.6A EP16801538A EP3365502B1 EP 3365502 B1 EP3365502 B1 EP 3365502B1 EP 16801538 A EP16801538 A EP 16801538A EP 3365502 B1 EP3365502 B1 EP 3365502B1
Authority
EP
European Patent Office
Prior art keywords
locking
blade
opening
crushing
blade holder
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
EP16801538.6A
Other languages
German (de)
French (fr)
Other versions
EP3365502A1 (en
Inventor
Tommi Mäkelä
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.)
Allu Finland Oy
Original Assignee
Allu Finland Oy
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 Allu Finland Oy filed Critical Allu Finland Oy
Publication of EP3365502A1 publication Critical patent/EP3365502A1/en
Application granted granted Critical
Publication of EP3365502B1 publication Critical patent/EP3365502B1/en
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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2825—Mountings therefor using adapters
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • 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
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Definitions

  • the present invention relates to a crushing blade arrangement of a crushing drum according to the preamble of claim 1, in which on the outer surface of the crushing drum are arranged a plurality of crushing blades.
  • FIG. 13 shows a crushing drum 30 according to prior art, described in more detail in patent US8074914 , including blade elements 32 arranged on an axis 31 and having a strip portion 33 and blade pieces 34.
  • the blade elements 32 are welded to the axis 31 along the entire length of their strip portion 33.
  • the disadvantage of such blade elements fixedly attached to the axis of the crushing drum is their serviceability. As the blade parts wear, the entire drum must be replaced with a new or refurbished drum.
  • a crushing blade arrangement according to the invention is characterized in that the receiving space is formed as a substantially quadrangular opening opening onto the upper surface of the blade holder and having on at least one side, extending inwards to the opening, a locking protrusion extending between the bottom surface of the blade holder and its upper surface; and that the shaft portion of the blade piece is shaped substantially quadrangular, corresponding to the opening of the blade holder, and equipped with a longitudinal locking channel corresponding to said at least one locking protrusion and extending towards the interior space of the shaft, which locking protrusion and locking channel together form a form locking.
  • a solution according to the invention enables fast interchangeability of the blade pieces, wherein it is not necessary to exchange the entire drum for servicing.
  • the blade pieces are further to be turned, substantially increasing their total service life.
  • the blade holder 1 shown in Figs. 1-6 includes a frame portion 2, into which is formed a quadrangular opening 3 for receiving the blade piece into it.
  • Two opposite sides of the opening 3 have, extending inwards to the opening, a locking protrusion 5, which extends between the bottom surface 7 of the blade holder and its upper surface, preferably the entire distance from the bottom surface to the upper surface.
  • a through hole 4 which travels at the locking protrusions 5.
  • the shaft portion 12 of the blade piece 11 shown in Figs. 7-12 is shaped substantially as corresponding to the opening 3 of the blade holder and equipped on its main surfaces with longitudinal locking channels 15 of the shaft corresponding to said locking protrusions 5 and extending towards the interior space of the shaft, which open onto the lower surface of the shaft, allowing the shaft to be inserted into the opening 3 of the blade holder.
  • the locking protrusion 5 and the locking channel 15 coming opposite to each other together form a form locking.
  • Into the blade piece 11 is also formed a horizontal locking hole 16, which travels substantially at the locking channels 15.
  • the blade pieces are placed into the quadrangular opening 3 by a movement in the direction of the shaft of the blade pieces, i.e. substantially in the direction of the radius of the crushing drum.
  • the side surfaces of the shaft portion 12 are preferably shaped as downwardly converging from their upper portion 17a, which facilitates the detaching of a blade piece from the blade holder.
  • the lower portion 17b of the side surfaces is substantially straight.
  • Reference numeral 13 of Figs. 10-12 shows the horizontal portion of the blade piece and reference numeral 14 the front surface forming the work surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)

Description

  • The present invention relates to a crushing blade arrangement of a crushing drum according to the preamble of claim 1, in which on the outer surface of the crushing drum are arranged a plurality of crushing blades.
  • Such crushing drums are used, for example, in bucket crushers to be mounted in an excavator or a bucket loader. Fig. 13 shows a crushing drum 30 according to prior art, described in more detail in patent US8074914 , including blade elements 32 arranged on an axis 31 and having a strip portion 33 and blade pieces 34. The blade elements 32 are welded to the axis 31 along the entire length of their strip portion 33. The disadvantage of such blade elements fixedly attached to the axis of the crushing drum is their serviceability. As the blade parts wear, the entire drum must be replaced with a new or refurbished drum.
  • The object of the present invention is to provide an improved crushing blade arrangement, which will substantially facilitate refurbishing work. In order to achieve this object, a crushing blade arrangement according to the invention is characterized in that the receiving space is formed as a substantially quadrangular opening opening onto the upper surface of the blade holder and having on at least one side, extending inwards to the opening, a locking protrusion extending between the bottom surface of the blade holder and its upper surface; and that the shaft portion of the blade piece is shaped substantially quadrangular, corresponding to the opening of the blade holder, and equipped with a longitudinal locking channel corresponding to said at least one locking protrusion and extending towards the interior space of the shaft, which locking protrusion and locking channel together form a form locking.
  • A solution according to the invention enables fast interchangeability of the blade pieces, wherein it is not necessary to exchange the entire drum for servicing. The blade pieces are further to be turned, substantially increasing their total service life.
  • In the following, the invention is described in more detail with reference to the accompanying figures, in which:
    • Figs. 1-3
    show an embodiment of a blade holder according to the invention diagrammatically as an oblique isometric view seen from above, as a view seen from the front and as an oblique isometric view seen from below, respectively,
    Figs. 4-6
    show a blade holder according to Figs. 1-3 as seen directly from below, from the side and from above, respectively,
    Figs. 7-9
    show an embodiment of a blade piece according to the invention diagrammatically as seen directly from below, from the side and from above, respectively,
    Figs. 10-12
    show the blade piece of Figs. 7-9 as an oblique isometric view seen from above, as a view seen from the front and as an oblique isometric view seen from below, respectively,
    Fig. 13
    shows a crushing drum according to prior art.
  • The blade holder 1 shown in Figs. 1-6 includes a frame portion 2, into which is formed a quadrangular opening 3 for receiving the blade piece into it. Two opposite sides of the opening 3 have, extending inwards to the opening, a locking protrusion 5, which extends between the bottom surface 7 of the blade holder and its upper surface, preferably the entire distance from the bottom surface to the upper surface. Into the blade holder is further formed a through hole 4, which travels at the locking protrusions 5. To the other two sides of the opening 3, which have no locking protrusion and are opposite each other, is formed to their upper edge an indentation 6 opening onto the outer surface of the blade holder, into which indentation is to be fitted a tool for detaching the blade piece in the holder.
  • The shaft portion 12 of the blade piece 11 shown in Figs. 7-12 is shaped substantially as corresponding to the opening 3 of the blade holder and equipped on its main surfaces with longitudinal locking channels 15 of the shaft corresponding to said locking protrusions 5 and extending towards the interior space of the shaft, which open onto the lower surface of the shaft, allowing the shaft to be inserted into the opening 3 of the blade holder. The locking protrusion 5 and the locking channel 15 coming opposite to each other together form a form locking. Into the blade piece 11 is also formed a horizontal locking hole 16, which travels substantially at the locking channels 15. The blade pieces are placed into the quadrangular opening 3 by a movement in the direction of the shaft of the blade pieces, i.e. substantially in the direction of the radius of the crushing drum. When the blade piece is in place, the locking holes 4 and 16 in the blade holder settle into alignment and the blade piece can be locked into place by means of a locking element (not shown) extending through the holes. The side surfaces of the shaft portion 12 are preferably shaped as downwardly converging from their upper portion 17a, which facilitates the detaching of a blade piece from the blade holder. The lower portion 17b of the side surfaces is substantially straight. Reference numeral 13 of Figs. 10-12 shows the horizontal portion of the blade piece and reference numeral 14 the front surface forming the work surface.

Claims (5)

  1. A crushing blade arrangement of a crushing drum, in which on the outer surface of the crushing drum are arranged a plurality of crushing blades, which arrangement includes, fixedly attached on the outer surface of the drum, a blade holder (1) with a receiving space (3) for an interchangeable blade piece (11); wherein the blade piece (11) is composed of a horizontal blade portion (13) and a vertical shaft portion (12), which shaft portion (12) is adapted to be placed into the receiving space (3) of the blade holder and to be locked into it by means of a separate locking element; characterized in that the receiving space (3) is shaped as a substantially quadrangular opening opening onto the upper surface of the blade holder and having on at least one side, extending inwards to the opening, a locking protrusion (5) extending between the bottom surface (7) of the blade holder and its upper surface; and that the shaft portion (12) of the blade piece (11) is shaped substantially quadrangular, corresponding to the opening of the blade holder, and equipped with a longitudinal locking channel (15) of the shaft portion corresponding to said at least one locking protrusion (5) and extending towards the interior space of the shaft, which locking protrusion (5) and locking channel (15) together form a form locking.
  2. An arrangement according to claim 1, characterized in that on two opposite sides of the opening (3) are locking protrusions (5) extending towards each other, and that the shaft of the blade piece has on its two opposite sides locking channels (15) corresponding to the locking protrusions.
  3. An arrangement according to claim 1 or 2, characterized in that into the blade holder (1) is formed a horizontal locking hole (4), which travels substantially at the locking protrusions (5), and that into the blade piece (11) is formed a corresponding horizontal locking hole (16), which travels substantially at the locking channels (15).
  4. An arrangement according to any one of preceding claims 2-3, characterized in that to the upper edge of the two opposite sides of the opening (3) of the blade holder (1) is formed an indentation (6) extending on the outer surface of the blade holder, into which indentation is to be fitted a tool for detaching the blade piece in the holder, which indentations (6) are located on those sides of the opening (3), which have no locking protrusions (5).
  5. An arrangement according to any of the preceding claims, characterized in that the bottom surface (7) of the holder (1) is formed as curved, corresponding to the curvature of the outer surface of the crushing drum.
EP16801538.6A 2015-10-23 2016-10-11 Crushing blade arrangement of a crushing drum Active EP3365502B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20155756A FI127254B (en) 2015-10-23 2015-10-23 Crusher arrangement for a crusher drum
PCT/FI2016/050711 WO2017068237A1 (en) 2015-10-23 2016-10-11 Crushing blade arrangement of a crushing drum

Publications (2)

Publication Number Publication Date
EP3365502A1 EP3365502A1 (en) 2018-08-29
EP3365502B1 true EP3365502B1 (en) 2019-11-20

Family

ID=57396478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16801538.6A Active EP3365502B1 (en) 2015-10-23 2016-10-11 Crushing blade arrangement of a crushing drum

Country Status (7)

Country Link
US (1) US20180305903A1 (en)
EP (1) EP3365502B1 (en)
JP (1) JP2018531787A (en)
KR (1) KR102601747B1 (en)
AU (1) AU2016342462A1 (en)
FI (1) FI127254B (en)
WO (1) WO2017068237A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700078145A1 (en) 2017-07-11 2019-01-11 Mecc Breganzese S P A In Breve Mb S P A SCREENING BUCKET

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994486A (en) * 1959-11-02 1961-08-01 Poor & Co Renewable tip hammer
US3549095A (en) * 1968-08-19 1970-12-22 Abex Corp Pulverizer hammer for a hammer mill
CA2247715C (en) 1998-06-18 2004-03-02 Markku Jonninen A screen crusher for soil, waste or manure materials
DE102004048115B4 (en) 2004-10-02 2012-09-13 Deere & Company Rotor for a straw chopper
US20080216365A1 (en) * 2007-03-07 2008-09-11 Pengo Corporation Excavating tooth assembly and method for assembling and using the same
FI126696B (en) 2009-03-24 2017-04-13 Allu Finland Oy Crushing bucket
US10589278B2 (en) 2013-03-18 2020-03-17 Esco Group Llc Wear cap for an earth working roll

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
JP2018531787A (en) 2018-11-01
FI127254B (en) 2018-02-15
AU2016342462A1 (en) 2018-05-24
KR20180074753A (en) 2018-07-03
KR102601747B1 (en) 2023-11-13
EP3365502A1 (en) 2018-08-29
FI20155756A (en) 2017-04-24
WO2017068237A1 (en) 2017-04-27
US20180305903A1 (en) 2018-10-25

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