US3893634A - Inner lining construction for impact crushers - Google Patents

Inner lining construction for impact crushers Download PDF

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Publication number
US3893634A
US3893634A US397886A US39788673A US3893634A US 3893634 A US3893634 A US 3893634A US 397886 A US397886 A US 397886A US 39788673 A US39788673 A US 39788673A US 3893634 A US3893634 A US 3893634A
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US
United States
Prior art keywords
housing wall
armor
plates
opening
pin
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.)
Expired - Lifetime
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US397886A
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English (en)
Inventor
Horst Schmidt
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Individual
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Individual
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Publication of US3893634A publication Critical patent/US3893634A/en
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    • 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
    • B02C13/282—Shape or inner surface of mill-housings
    • 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
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C2013/2825—Shape or inner surface of mill-housings with fastening means for fixing lining members to the inner surface of mill-housings

Definitions

  • This invention relates to an inner lining for impact crushers, particularly for impact crushers for the comminution of hard rock, which lining is constructed of several armor plates arranged on the inner wall of the housing.
  • German Pat. specification, No. l,249,646 which has been laid open for public inspection, discloses an armor plate for impact crushers which carries an attachment piece on its rear side for fastening to the housing of a crusher.
  • the armor plate and attachment piece are cast as a one-piece construction, whereby the construction has an appreciable material volume for reasons of fastening, as well as for reasons of the casting process.
  • This has, however, the disadvantage that appreciable quantities of material occur as scrap on exchange of the armor plates, so that the wear costs are relatively high for the pertaining impact crusher.
  • a further disadvantage of the just-mentioned armor plate construction is that the plates are held with respect to the housing wall solely by means of a wedge or a resilient bracket or clamp, which may drop out or break, respectively, due to the vibrations which occur during operation of the crusher, so that the entire armor plate may fall during an impact operation and cause appreciable damage.
  • the object of the present invention is to provide an inner lining for an impact crusher, having armor plates constructed such that the costs for exchanging worn plates is lowered and a more positive and tight fastening of the armor plates to the housing all is made possible in a simple and economical manner.
  • each armor plate is provided with at least one recess for receiving the head of a releasable. wear-proof pin.
  • the pin extends through a corresponding opening in the housing wall and is tightly clamped on the outer side of the housing wall by means of a clamping element.
  • the fastening pin which is advantageously produced from the same or a harder material than the armor plates, may be used several times so that both the production costs for the arrv-ir plates as well as the material costs caused by wear are considerably reduced for the crusher housing lining.
  • the shaft of the pin is provided with an opening through which a transverse anchor or cross bar is passed, which anchor or cross bar is pressed, by means of the screw, tightly against the housing wall from the outside thereof.
  • the armor plates are securely held and permit tight clamping to the housing wall.
  • At least one part of the armor plate has, in each case, on at least one plate edge, a recess and on the rear side at least one hook element, whereby the plates are connected with the housing wall through the pin head, as well as by means of the hook elements.
  • FIG. 1 is a partial section through the housing wall and an armor plate of an impact crusher, constructed according to the present invention
  • FIG. 2 is a side view of the armor plate construction illustrated in FIG. 1;
  • FIG. 3 is a partial section of another embodiment of an armor plate constructed according to the present invention.
  • FIG. 4 is a top plan view of the apparatus illustrated in FIG. 3;
  • FIG. 5 is a partial section view of another embodiment of an armor plate construction according to the present invention.
  • FIG. 6 is another embodiment of an armor plate construction, shown in partial section, according to the present invention.
  • FIG. 7 is a left side plan view of the apparatus illustrated in FIG. 6.
  • an armor plate 1 is provided with an opening 2 extending conically inwardly for receiving a releasable, wearproof pin.
  • the pin is provided with a conically shaped head 3 which bears against the conical surface of the opening 2, and a shaft 4 which extends through an opening 5 in the housing wall 6.
  • the shaft is provided with an opening 7 through which a cross bar 8 extends to span the opening 5.
  • At the rear end of the pin 4 is an axially extending bore 4', through which a screw 9 is inserted.
  • the screw 9 engages the cross bar 8 through a nut I0 which spans the bore 4', and presses the cross bar 8 tightly against the housing wall 6.
  • the conical recess 2 in the armor plate I, the cross bar 8, the pin head 3 and the pin 4 may remain, very advantageously, in a rough condition and do not need to be further processed, whereby in comparison with known fastening devices for armor plates attached to the inner wall of the housing, particularly in impact crushers of the kind described. an appreciable diminishing of production costs is achieved.
  • very simple and material-saving armor plates of the desired size may be utilized and may be fixedly clamped to the housing wall of the impact crusher.
  • the clamping of the armor plate I may be undertaken very easily with the aid of a screw-spanner by means of tightening of the screw 9 from the outside.
  • the cross bar 8 is pressed tightly against the outer surface of the housing wall 6, while the adjacent nut 10 in the opening 7 of the pin 4 is moved outwardly and actuates the pin 4 in this direction.
  • the armor plate I is held by the head 3 of the pin 4 tightly on the housing wall.
  • the armor plate 1, if need be, may be rapidly released in a very simple manner by means of loosening of the screw with an appropriate tool, such as a screwdriver, wrench or the like, and may be rapidly tightened again.
  • the particular advantage of this embodiment of the invention resides in the fact that the clamping elements may be utilized more than once.
  • the wearproof pin 4, with the conically constructed head 3, in particular may be utilized repeatedly for the clamping of plates with the housing wall.
  • a pair of armor plates 11 and 12 in each case have a plate edge recess 13 and 14, respectively.
  • the head 15 of a pin 16 engages the plates within these recesses for clamping of the plates 11 and [2 with the housing wall 17.
  • the armor plates II and 12 are provided with recesses 18 and 19, respectively, for receiving respective lugshaped projections 20 and 21 of a cross bar 22.
  • the lugor nose-shaped projections 20 and 21 on the cross bar 22 are, in this connection, passed through corresponding openings in the housing wall 17.
  • the clamping of the armor plates 11 and 12 with the housing wall 17 takes place, as in the previous embodiment, with the aid of an axial screw 23 and nut 24 which passes through an open shaft of the pin 16.
  • the particular advantage of this construction of the armor plates, according to the invention resides in that with the aid of a single pin, two armor plates may be fixedly clamped simultaneously with the housing wall. In this manner, clamping elements are saved or eliminated.
  • a pair of armor plates 25 and 26 may be advantageously provided on the respective rear sides thereof with respective hook elements 27 and 28, which extend into a corresponding opening 29 of a housing wall 30, as illustrated in FIG. 5. Also, with this construction of the armor plates, two armor plates may be fixedly clamped with the housing wall at the same time by means of a simple clamping device.
  • FIGS. 6 and 7 it may also be suitable to provide a pair of armor plates 31 and 32 with hook elements 33 and 34 on the respective rear sides thereof and respective recesses 35 and 36 which receive and engage a correspondingly shaped pin head 37.
  • the pin head 37 presses the armor plates 31 and 32 by means of a pressure screw 39 arranged in a bracket 38 which is secured to the housing wall 40. In this manner, a tight clamping of the armor plates 31 and 32 with the housing wall 40 is likewise attained.
  • Armor structure for the housing of impact crush ers comprising a housing wall having inner and outer surfaces, means defining an opening through said housing wall, a plurality of armor plates, each of said armor plates comprising at least one recess, a pin including a wear-proof head extending through the wall opening with said head disposed in said recess, said pin further including a shaft extending through the wall opening, a transverse opening through said shaft, and means on the outer surface of said housing wall clampingly urging said pin outwardly of the housing, including a cross bar extending through the transverse opening through said shaft and spanning the housing wall opening, and a screw threadingly engaging said shaft for pressing said cross bar tightly against the outer surface of said housing wall.
  • Armor structure according to claim 1 wherein said plates are substantially coplanar at adjacent edges thereof to form a composite recess, and said wearproof head disposed in said composite recess for clamping adjacent plates.
  • Armor structure for the housing of impact crushers comprising a housing wall having inner and outer surfaces, means defining an opening through said housing wall, a plurality of armor plates, each of said armor plates comprising at least one recess, pairs of said armor plates disposed substantially coplanar at adjacent edges thereof with the respective recesses thereof adjacent each other, a hook element carried on each of said plates adjacent the respective recesses, and means connecting said hook elements with the outer surface of said housing wall, including a pin extending into said recesses, and means connected to the outer surface of said housing wall for clamping said pin in said recesses.
  • Armor structure according to claim 3 wherein said hook elements include means defining recesses adjacent said element, and said connecting means includes a cross bar with lugs extending into recesses adjacent said hook elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
US397886A 1972-09-20 1973-09-17 Inner lining construction for impact crushers Expired - Lifetime US3893634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2246059A DE2246059C2 (de) 1972-09-20 1972-09-20 Innenpanzerung für Prallbrecher

Publications (1)

Publication Number Publication Date
US3893634A true US3893634A (en) 1975-07-08

Family

ID=5856808

Family Applications (1)

Application Number Title Priority Date Filing Date
US397886A Expired - Lifetime US3893634A (en) 1972-09-20 1973-09-17 Inner lining construction for impact crushers

Country Status (7)

Country Link
US (1) US3893634A (enExample)
JP (1) JPS5748260B2 (enExample)
DE (1) DE2246059C2 (enExample)
ES (1) ES418780A1 (enExample)
FR (1) FR2200058B1 (enExample)
GB (1) GB1427786A (enExample)
ZA (1) ZA737332B (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990007981A1 (en) * 1989-01-10 1990-07-26 American Magotteaux Corporation Laminar segment for use with comminution equipment
DE4314512A1 (de) * 1993-05-03 1994-11-10 Elba Werk Maschinen Gmbh & Co Kraftschlüssige Verbindung zur Befestigung von Verschleißkacheln für die Auskleidung eines Mischtrogs, insbesondere eines Betonmischtrogs
US10543985B2 (en) * 2015-01-19 2020-01-28 Flsmidth A/S Interlocking wear-resistant panel system
US11076528B2 (en) * 2017-02-17 2021-08-03 Tigercat International Inc. Mulching apparatus and related components
EP4397464A4 (en) * 2021-08-30 2024-12-11 Zhejiang Boretech Environmental Engineering Co., Ltd. LABEL REMOVAL MACHINE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714435A1 (de) * 1987-04-30 1988-11-17 Lindemann Maschfab Gmbh Gestaltung der gehaeusewaende von zerkleinerungsmaschinen
DE3907816A1 (de) * 1989-03-10 1990-09-13 Salzgitter Maschinenbau Schleissplattenbefestigung i
DE4432543C1 (de) * 1994-09-13 1996-04-04 Noell Serv & Maschtechn Gmbh Schleißplattenbefestigung für Zerkleinerungsmaschinen
FR3131570B1 (fr) 2022-01-05 2024-08-02 Psa Automobiles Sa Procédé d’aide à la conduite d’un véhicule automobile, dispositif et véhicule associés

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US229577A (en) * 1880-07-06 Johajst e
US2275992A (en) * 1939-02-16 1942-03-10 Maxwell L Rahner Grinding mill
US3580520A (en) * 1968-10-29 1971-05-25 Stedman Foundry And Machine Co Breaker plate assembly for a disintegrator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1253547A (en) * 1917-06-25 1918-01-15 Ernest A Velde Rock-pulverizer.
DE881433C (de) * 1951-06-23 1953-06-29 Miag Vertriebs Gmbh Befestigung von Deckplatten fuer schlag- und verschleissbeanspruchte Oberflaechen, z. B. fuer Innenflaechen von Rohrmuehlen
DE1237936B (de) * 1963-12-06 1967-03-30 Elba Werk Maschinen Gmbh & Co Verschleissschutz fuer Baustoffmischer, insbesondere Trogmischer
DE1249646B (enExample) * 1965-05-06 1967-09-07
FR1508380A (fr) * 1966-11-25 1968-01-05 Blaw Knox Cie Fse Perfectionnements aux organes de frappe des appareils concasseurs broyeurs à percussion
US3582007A (en) * 1968-07-22 1971-06-01 Dyson & Sons T-bolt and pad for liner mounting
DE7110932U (de) * 1971-03-23 1971-12-23 Brinker E Schlaegermuehle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US229577A (en) * 1880-07-06 Johajst e
US2275992A (en) * 1939-02-16 1942-03-10 Maxwell L Rahner Grinding mill
US3580520A (en) * 1968-10-29 1971-05-25 Stedman Foundry And Machine Co Breaker plate assembly for a disintegrator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990007981A1 (en) * 1989-01-10 1990-07-26 American Magotteaux Corporation Laminar segment for use with comminution equipment
US4946110A (en) * 1989-01-10 1990-08-07 American Magotteaux Corporation Laminar segments for use with comminution equipment
DE4314512A1 (de) * 1993-05-03 1994-11-10 Elba Werk Maschinen Gmbh & Co Kraftschlüssige Verbindung zur Befestigung von Verschleißkacheln für die Auskleidung eines Mischtrogs, insbesondere eines Betonmischtrogs
US10543985B2 (en) * 2015-01-19 2020-01-28 Flsmidth A/S Interlocking wear-resistant panel system
US11076528B2 (en) * 2017-02-17 2021-08-03 Tigercat International Inc. Mulching apparatus and related components
EP4397464A4 (en) * 2021-08-30 2024-12-11 Zhejiang Boretech Environmental Engineering Co., Ltd. LABEL REMOVAL MACHINE

Also Published As

Publication number Publication date
ES418780A1 (es) 1976-03-01
FR2200058B1 (enExample) 1976-10-01
FR2200058A1 (enExample) 1974-04-19
ZA737332B (en) 1974-08-28
JPS4970265A (enExample) 1974-07-08
GB1427786A (en) 1976-03-10
DE2246059A1 (de) 1974-05-02
JPS5748260B2 (enExample) 1982-10-15
DE2246059C2 (de) 1985-05-02

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