EP0240440A2 - Hammer für Maschinen zum Zerkleinern von Schrott oder anderen Metallen - Google Patents

Hammer für Maschinen zum Zerkleinern von Schrott oder anderen Metallen Download PDF

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Publication number
EP0240440A2
EP0240440A2 EP87420075A EP87420075A EP0240440A2 EP 0240440 A2 EP0240440 A2 EP 0240440A2 EP 87420075 A EP87420075 A EP 87420075A EP 87420075 A EP87420075 A EP 87420075A EP 0240440 A2 EP0240440 A2 EP 0240440A2
Authority
EP
European Patent Office
Prior art keywords
grooves
joint plane
hammer
parts
locking
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.)
Withdrawn
Application number
EP87420075A
Other languages
English (en)
French (fr)
Other versions
EP0240440A3 (de
Inventor
Charles Pasqualini
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.)
Fonderies Et Acieries Electriques De Feurs Sa SA
Original Assignee
Fonderies Et Acieries Electriques De Feurs Sa SA
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 Fonderies Et Acieries Electriques De Feurs Sa SA filed Critical Fonderies Et Acieries Electriques De Feurs Sa SA
Publication of EP0240440A2 publication Critical patent/EP0240440A2/de
Publication of EP0240440A3 publication Critical patent/EP0240440A3/de
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a hammer in particular for machines for grinding scrap metal or other metals.
  • the object of the invention relates to the technical sector of mechanical metalworking without substantial removal of material.
  • the hammers have, in a monobloc manner with their coupling part, an active working part suitably profiled taking into account the operations to be carried out and in an attempt to reduce as much as possible the wear phenomenon which appears as the job.
  • this active part which must shred very resistant products, must reach a very high hardness greater than 500 strands.
  • the part for fixing these hammers to the shaft can be satisfied with a hardness of the order of 200 strands since this part is obviously not stressed in the same way.
  • the whole hammer must therefore undergo a special heat treatment in order to progressively go from a low hardness to a very high hardness. This results in very important know-how. In most cases, the optimum value for the hardness of the active part cannot be reached.
  • the invention set itself the aim of remedying these drawbacks by creating a hammer which is executed in two mechanically distinct parts, one part intended to be fixed on a support member of the machine and another active part of determined profile and intended to ensure striking, said parts being arranged in combination with complementary means of assembly and locking in position making it possible to ensure, at will, their relative assembly and disassembly.
  • the fixing part is executed in high tenacity steel, while the active working part is executed in very high hardness steel.
  • the hammer designated as a whole by (M) is executed in two mechanically distinct parts (1) and (2).
  • the part (1) is intended to be coupled for example to an appropriate part of a grinding machine, while the part (2) constitutes the active working part.
  • the fixing part (1) has a hardness of around 200 strands while the active part of the work (2) has a hardness of around 500 strands or more.
  • a specific heat treatment based on know-how as indicated in the preamble is no longer necessary.
  • the base of the active working part in combination with the lateral sides has a profile (2a) of any known and suitable type such as that frequently used for such hammers.
  • the support part (1) has a central opening (1a) for its mounting in particular on a shaft.
  • each part (1) and (2) is arranged in combination with complementary locking means making it possible to ensure their relative coupling at will.
  • the support part has, in overflow from its joint plane (1c), a profiled cylindrical axial head (1b) capable of cooperating with a complementary housing (2b) formed axially in the thickness of the active working part. (2), from its joint plane (2c).
  • the coupling head (1b) and its complementary housing (2b) have relief and hollow arrangements suitably profiled to ensure between the two parts (1) and (2) a mechanical assembly.
  • the coupling head (1b) has vertically over its height, two raised impressions (1d) and (1e) diametrically opposite and each forming two frustoconical bearing surfaces of progressive section in the direction of its free end. Between the frustoconical imprints in relief (1d) and (1e) the coupling head (1b) therefore leaves two diametrically opposite semi-cylindrical housings (1b1).
  • the axial housing (2b) of the active part (2) has, vertically over its height, two semi-cylindrical hollow imprints (2d) and (2e) diametrically opposite and determined to allow the engagement of the imprints in relief (1d) and (1e) of the head (1b).
  • the housing (2b) leaves two diametrically opposed bearing surfaces (2b1), said bearing surfaces having a conicity corresponding to that of the relief imprints (1d) and (1e) .
  • the footprints (1d-2d) and (1e-2e) are offset angularly by 90 degrees.
  • the joint planes (1c) - (2c) of each of the parts (1) and (2) have in combination arrangements designed to allow indexing in the coupling position of said parts and the engagement of 'locking devices.
  • the joint plane (1c) of the part (1) has two lugs (1f) and (1g) diagonally opposite and located beyond the corresponding ends of said plane (1c). These lugs act as angular stops for positioning and indexing the active working part (2) as indicated in the following description.
  • the joint plane (1c) has a semi-circular profile (1h-1i) which acts as a ramp cooperating in support with a corresponding part of the joint plane (2c) of the active working part (2).
  • the plane of the joint (1c) has symmetrically two grooves profiled in an arc (1j) and (1k).
  • the joint plane (2c) of the active working part (2) symmetrically has two grooves profiled in an arc (2f) and (2g) so that in the coupling position of the two parts (1) and (2), said grooves (2f) - (2g) and (1j) - (1k) form a guide tunnel for the engagement of a locking member in angular position of said two parts (1) and (2).
  • each locking member is constituted by a key (3) profiled in an arc of a circle in a manner complementary to the grooves (2f-2g) and (1j-1k).
  • the cross section of each of the keys is semi-circular to correspond to the guide tunnel, resulting from the juxtaposition of the profiled grooves (2f-2g) and (1j-1k).
  • the key (3) is extended by a flat part (3a), a transverse pre-folding line (3b) making it possible to angularly fold this part (3a) into a complementary imprint (1m) - (1n) established in the thickness of each of the transverse faces of the upper body (1), in continuity and in correspondence with each of the grooves (1d) and (1k).
  • the active part of the work (2) is arranged opposite the support part (1), perpendicularly to the latter so that the indentations (2d) and (2e) of the part (2) are in correspondence and alignment with the imprints (1d) and (1e) of the support part (1) figure (4).
  • the axial housing (2b) of the active part (2) is then engaged on the conical centering and coupling head (1b) so that the semi-cylindrical impressions (2d) and (2e) are engaged and positioned on the tapered relief imprints (1d) and (1e).
  • the active part is always oriented perpendicular to the support part (1) ( Figure 5).
  • the frustoconical surfaces (1d) and (1e) therefore escape the cylindrical housings (2d) and (2e). During rotation, the frusto-conical surfaces (1d) and (1e) are not in contact with the subsequent frusto-conical surfaces (2b1), which makes rotation easy.
  • the semi-circular profile forming a ramp (1h) and (1i) of the part (1) very slightly spreads the active part (2) thus advantageously catching up with the functional play.
  • the lugs (1f) and (1g) ensure the angular indexing of the two parts.
  • each of the indentations (1m) and (1n) has in the lower part, a hollow deformation (1m1) and (1n1) to allow the passage of any tool to raise the part (3a) of the key in view to remove the latter to unlock the two constituent parts of the hammer.
  • the invention finds a particularly advantageous application for equipping machines for grinding the bodies of motor vehicles as illustrated in FIG. 16.
  • the invention is in no way limited to that of its modes of application any more than to those of embodiments of its various parts having been more specially indicated; on the contrary, it embraces all its variants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Crushing And Pulverization Processes (AREA)
EP87420075A 1986-03-18 1987-03-18 Hammer für Maschinen zum Zerkleinern von Schrott oder anderen Metallen Withdrawn EP0240440A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8604205A FR2595960B1 (fr) 1986-03-18 1986-03-18 Marteau notamment pour machines a broyer la ferraille ou autres metaux
FR8604205 1986-03-18

Publications (2)

Publication Number Publication Date
EP0240440A2 true EP0240440A2 (de) 1987-10-07
EP0240440A3 EP0240440A3 (de) 1989-03-15

Family

ID=9333477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420075A Withdrawn EP0240440A3 (de) 1986-03-18 1987-03-18 Hammer für Maschinen zum Zerkleinern von Schrott oder anderen Metallen

Country Status (2)

Country Link
EP (1) EP0240440A3 (de)
FR (1) FR2595960B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101703952B (zh) * 2009-01-11 2011-04-27 李正峰 锤式破碎机锤头
CN102327795A (zh) * 2011-08-05 2012-01-25 昆明理工大学 一种无Cr高硼铁基耐磨双金属复合锤头及其制备方法
US8308094B2 (en) 2009-02-26 2012-11-13 Esco Corp. Shredder hammers including improved engagement between the hammer pin and the hammer
EP2377619A3 (de) * 2010-04-16 2013-08-28 Betek GmbH & Co. KG Schneidkörper
US10525477B2 (en) 2014-04-30 2020-01-07 Esco Group Llc Hammer for material reducing machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2246354C1 (ru) * 2003-12-15 2005-02-20 Северо-Кавказский горно-металлургический институт (государственный технологический университет) (СКГМИ (ГТУ) Центробежная дробильно-измельчительная установка

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1142267B (de) * 1960-05-03 1963-01-10 Eickhoff Geb Schlagwerkzeug fuer Schlaegermuehlen
FR2257343A1 (en) * 1974-01-16 1975-08-08 Matelest Sa Two-part refuse comminuter arm - impact block fits into recess in impact face, secured by bolts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101703952B (zh) * 2009-01-11 2011-04-27 李正峰 锤式破碎机锤头
US8308094B2 (en) 2009-02-26 2012-11-13 Esco Corp. Shredder hammers including improved engagement between the hammer pin and the hammer
EP2377619A3 (de) * 2010-04-16 2013-08-28 Betek GmbH & Co. KG Schneidkörper
CN102327795A (zh) * 2011-08-05 2012-01-25 昆明理工大学 一种无Cr高硼铁基耐磨双金属复合锤头及其制备方法
US10525477B2 (en) 2014-04-30 2020-01-07 Esco Group Llc Hammer for material reducing machines
US11951484B2 (en) 2014-04-30 2024-04-09 Esco Group Llc Hammer for material reducing machines

Also Published As

Publication number Publication date
FR2595960B1 (fr) 1989-11-10
EP0240440A3 (de) 1989-03-15
FR2595960A1 (fr) 1987-09-25

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