US3536268A - Mantle for cone crushers - Google Patents

Mantle for cone crushers Download PDF

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Publication number
US3536268A
US3536268A US669215A US3536268DA US3536268A US 3536268 A US3536268 A US 3536268A US 669215 A US669215 A US 669215A US 3536268D A US3536268D A US 3536268DA US 3536268 A US3536268 A US 3536268A
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US
United States
Prior art keywords
crushing
crushing member
mantle
conical
liner
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
Application number
US669215A
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English (en)
Inventor
Howard W Adam
Jerome C Motz
Rudolph J Gasparac
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.)
Metso Minerals Milwaukee Inc
Nordberg Manufacturing Co
Original Assignee
Nordberg Manufacturing Co
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 Nordberg Manufacturing Co filed Critical Nordberg Manufacturing Co
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Publication of US3536268A publication Critical patent/US3536268A/en
Assigned to REXNORD INC. reassignment REXNORD INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). FEBRUARY 24, 1982 Assignors: REX CHAIN BELT INC.
Anticipated expiration legal-status Critical
Assigned to NORDBERG INC., A CORP. OF DE reassignment NORDBERG INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: REXNORD INC.
Assigned to FIRST NATIONAL BANK OF BOSTON, THE reassignment FIRST NATIONAL BANK OF BOSTON, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NORDBERG, INC., A DE CORP.
Assigned to FIRST NATIONAL BANK OF BOSTON, THE, 100 FEDERAL ST., BOSTON, MA 02110, A NATIONAL BANKING ASSOCIATION reassignment FIRST NATIONAL BANK OF BOSTON, THE, 100 FEDERAL ST., BOSTON, MA 02110, A NATIONAL BANKING ASSOCIATION RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: NORDBERG, INC., 3073 SOUTH CHASE AVE., MILWAUKEE, WI 53207, A DE CORP.
Expired - Lifetime 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
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/005—Lining

Definitions

  • This invention relates to cone Crushers and more particularly to wearing parts such as a mantle or bowl liner for such a Crusher.
  • a primary object of this invention is to provide a wearing part for a cone crusher which has a hard, wear resistant crushing surface and means for retaining any fractured segments of the material forming the crushing surface in operative position should such material fracture or crack during use in the cone Crusher.
  • Another object of this invention is a Wearing part, such as a mantle or bowl liner, for use in a cone crusher which has a keeper or retaining ring suitably secured around a hard, wear resistant crushing member.
  • Another object is to provide a Wearing part for 'use in a cone Crusher which includes a crushing member having a generally conical crushing surface and an outer circumferential surface with a retaining ring secured to the outer circumferential surface to maintain the conical crushing surface as a conical surface should the crushing member 'become sectionalized as a result of cracking.
  • Another object is to provide an economical, long Wearing mantle or bowl liner for use in a cone Crusher.
  • a further object is to provide a mantle or bowl liner structure which e'nables the use of a hard, Wear resistant material for the active crushing portion thereof.
  • FIG. 1 is a plan View of a mantle structure showing one embodiment of this invention
  • FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1 to an enlarged scale;
  • FIG. 3 is a cross-sectional view like FIG. 2 of a modified form of the embodiment of FIG. 1;
  • FIG. 4 is a partial cross-sectional view of a bowl liner structure showing another embodiment of this invention.
  • a mantle has been shown as comprising a truncated conical crushing member 12 and an annular retaining band or ring 14.
  • the truncated conical crushing member 12 is formed with an outer conical crushing surface 16, an inner conical supporting surface 18, an inner circumferential surface 20 and an outer circumferential surface 22. It should be understood, however, that this invention is not limited to the particular mantle crushing member configuration shown in FIGS. 2 and 3.
  • the angles of inclination of the conical crushing surface 16 and the conical supporting surface 18 may be widely varied; and, as will be understood by those skilled in the art, the shape of the inner circumferential surface 20l may be Widely varied depending upon the means by whichv the mantle 1i) is to be mounted.
  • a bowl liner has been shown as comprising a crushing member 28 and an annular retaining band or ring 30.
  • the crushing member 28 has been shown ⁇ formed with a generally conical portion 32 and an upwardly extending generally cylindrical portion 34.
  • the cylindrical portion 34 includes an outwardly extending guide ange 36 and an upper flange 38.
  • the conical portion 32 includes an inner conical crushing surface 40, an outer conical backing or supporting surface 42 and an outer circumferential surface 44. It should be understood, however, that this invention is not limited to the particular liner crushing member configuration shown in FIG. 4.
  • the means by which the liner is mounted to the Crusher bowl in this instance the cylindrical portion 34 of the crushing member 28, may be widely varied; also, the angle of inclination of the conical supporting surface 42 and conical crushing surface 40 may be widely varied.
  • the retaining bands or rings 14 and 30' may be shrunk fit around or otherwise suitably secured to the outer circumferential Surfaces 22 and 44 respectively of the mantle crushing member 12 and liner crushing member 28.
  • a room temperature diametral interference in the range of .015 to .030 inch between the retaining band 14 and the surface 22 will suitably secure the band 14 to the crushing member 12 When the former is shrunk fit therearound.
  • the retaining bands may be effectively secured to the crushing members by means other than shrink tting.
  • a suitable adhesive might be used; or, the bands 14 and 30 might be formed with a turnbuckle or other suitable means for drawing the band tightly around the crushing member.
  • the retaining bands or rings 14 and 30 have been shown as being generally rectangular in cross section, it should be understood that such cross-sectional shapes may take a variety of forms. What is important iS that the retaining bands be adapted to exert a generally radially inwardly directed compressive force around the periphery of the crushing member so that should the crushing member crack during use, the segments of the crushing member formed by such cracks will be retained in an operative position by the retaining band.
  • the mantle crushing member 12 and liner crushing member 28 are preferably castings and may have reinforcing rings 24 imbedded therein which are spaced from each other by spacers 26 and spaced relative to surface 18 by back spacers 27.
  • rings 24 and spacers 26 and 27 For details concerning the rings 24 and spacers 26 and 27, reference is made to copending application Ser. No. 586,413, liled Oct. 13, 1966 now Pat. No. 3,473,746, issued Oct. 21, 1969.
  • the mantle crushing member 12 and liner crushing member 28 are made using a hard, wear resistant Inaterial such as perlitic, carbidic, white cast iron; martensitic, carbidic, chrome-nickel alloyed cast iron, sometimes known as Nihard; and like materials having a Brinell hardness number at least as high as 400.
  • a hard, wear resistant Inaterial such as perlitic, carbidic, white cast iron; martensitic, carbidic, chrome-nickel alloyed cast iron, sometimes known as Nihard; and like materials having a Brinell hardness number at least as high as 400.
  • the bands 14 and 30 may be made of any suitable metal, but it Will be understood that the band should have a tensile strength suliiciently high to resist fracture.
  • the range of ultimate tensile strengths may be as low as 45,000 or less, and as high as 100,000 or more.
  • the bowl liner is positioned within a bowl with the liner surface 42 engaging a generally complementary surface formed in the bowl.
  • the liner may be secured to the bowl by suitable means such as wedge elements which engage the upper ange 38.
  • the liner crushing member 28 may be provided with other suitable mounting means.
  • the bowl and liner surround a head adapted for gyratory motion.
  • the mantle is mounted on the head and may be suitably retained by a member which engages a portion of the inner circumferential Surface and forces the inner conical supporting surface 18 into supporting engagement with a complementary supporting surface on the head.
  • the inner conical crushing surface 40 of the liner and the outer conical crushing surface 16 of the mantle 10 define a crushing cavity into which material is discharged from above for reduction.
  • the bowl liner and mantle are subjected to extreme stresses which tend to deform and/or cause the bowl liner and mantle to fracture while the crushing surfaces 16 and 4t) are subjected to extreme abrasive forces.
  • Manganese steel has been a generally accepted and widely used material for bowl liners and mantles. However, although manganese steel is tough and resistant to breaking or cracking, the crushing surfaces 16 and 40 ⁇ lmay wear away rapidly when crushing an abrasive material. For example, in some crushing operations, a manganese steel mantle will wear away at a rate of approximately 1A; of an inch per three hour period.
  • hard, wear resistant cast materials such as perlitic, carbidic, White cast iron; marf tensitic, carbidic, chrome-nickel alloyed cast iron, sometimes known as Nihard; and the like which have a Brinell hardness number at least as high as 400.
  • Such materials tend to fracture or crack when subjected to stresses in the order of magnitude experienced by a mantle or bowl liner within a cone Crusher.
  • an annular metal retaining band or ring is suitably compressively secured, for example by a shrink tit, to the outer circumferential surface of the cast crushing member so that during use in the cone Crusher, should the cast crushing member fracture, the fractured segments are retained in working position by the metal retaining band. Accordingly, the cone Crusher wearing part structure of this invention enables the use of hard, wear resistant metals for the active crushing portion of the wearing part.
  • Such fractured segments of the liner or mantle crushing member may be further maintained in working position by rings 24 imbedded or in cavities within the cast crushing member as disclosed in application Ser. No. 586,413, filed Oct. 13, 1966 now Pat. No. 3,473,746. However, these rings may be omitted.
  • the cone Crusher wearing part crushing member may be made from a variety of hard, wear resistant materials.
  • a cone Crusher of the type including an annular crushing liner and a head adapted to gyrate relative to said liner and located inwardly of said liner, the improvement comprising a mantle carried by said head for gyratory motion therewith and adapted to crush material in cooperation with said liner, said mantle including, in combination, a crushing member having an inner conical surface for engagement with said gyrating head, an outer conical surface for crushing said material, and an outer circumferential surface, and means for exerting a generally radially inwardly directed compressive force around the periphery of said crushing member to thereby retain fractured segments of said crushing member in operative crushing position.
  • crushing member has a generally truncated conical cross-sectional shape and is a hard wear resistant metal having a Brinell hardness number not less than 400.
  • a Crusher of the type having a bowl and a head adapted to gyrate relative to the bowl and located inwardly thereof, the improvement comprising a crushing member having a conical surface for crushing material, a second conical surface for engagement with said crusher, and an outer circumferential surface, said crushing member being of a hard, Wear resistant material, and means for exerting a generally radially inwardly directed force around the periphery of said crushing member to thereby retain fractured segments of said crushing member in operative crushing position.
  • crushing member is a hard wear resistant metal having a Brinell hardness number not less than 400.
  • said-force exerting means includes a retaining ring scured to said outer circumferential surface of said crushing member.
  • a wearing part for use in Crushers and the like including a crushing member having a generally flat, somewhat frusto-conical crushing surface, a supporting surface, and a generally cylindrical outer surface, the crushing member being of a hard wear-resistant material, and a retaining ring on the outer cylindrical surface applying a radial stress inwardly to the crushing member.
  • the structure of claim 11 further characterized in that the crushing member is generally frusto-conical.
  • the structure of claim 11 further characterized in that the retaining ring is applied to the crushing member by a shrink fit.
  • the structure of claim 11 further characterized in that the crushing member is formed of a material having a Brinell hardness number at least as high as 400.
  • a wearing part for use in cone crushers and the like including a generally at somewhat frusto-conical crushing member having a crushing surface adapted to be disposed and operative in the crushing cavity of the Crusher, a supporting surface on the crushing member adapted to be supported on and bear against a part of the cone Crusher, and an outer peripheral surface on the crushing member, the crushing member being of a hard Wear-resistant material having a Brinell hardness number on the order of 400 or greater, a retaining ring on the outer peripheral surface of the crushing member, and a compression fit between the retaining ring and the cylindrical surface of the crushing member so that the ring applies radial inward stresses to the crushing member.
  • a Wearing part for use in cone crushers including, in combination, a crushing member having a general conical crushing surface and an outer circumferential surface, said crushing member being a hard wear-resistant material, and means for retaining fractured segments of said crushing member in operative crushing position, said retaining means comprising an annular retaining band secured to said outer circumferential surface of said crushing member, said annular retaining band being secured t0 said outer circumferential surface of said crushing member by shrink fitting it therearound.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
US669215A 1967-09-20 1967-09-20 Mantle for cone crushers Expired - Lifetime US3536268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66921567A 1967-09-20 1967-09-20

Publications (1)

Publication Number Publication Date
US3536268A true US3536268A (en) 1970-10-27

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Family Applications (1)

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US669215A Expired - Lifetime US3536268A (en) 1967-09-20 1967-09-20 Mantle for cone crushers

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US (1) US3536268A (de)
DE (1) DE1607559C2 (de)
FR (1) FR1551431A (de)
GB (1) GB1205420A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014108211A1 (en) * 2013-01-14 2014-07-17 Sandvik Intellectual Property Ab Gyratory crusher composite component
US10821562B1 (en) * 2019-06-14 2020-11-03 McCloskey International Limited Cone head wiper replacement method and apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494265A (en) * 1922-01-10 1924-05-13 Shartle Brothers Machine Compa Filler or lining for pulping engines
US1774556A (en) * 1927-11-22 1930-09-02 E D Jones & Sons Co Jordan engine
US2120697A (en) * 1935-08-05 1938-06-14 Carborundum Co Apparatus for disintegrating fibrous substances
US2467938A (en) * 1945-12-15 1949-04-19 Joseph E Kennedy Reversible mantle for gyratory crushers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2341543A (en) * 1941-06-27 1944-02-15 Nordberg Manufacturing Co Bowl liner for gyratory crushers and means for securing it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494265A (en) * 1922-01-10 1924-05-13 Shartle Brothers Machine Compa Filler or lining for pulping engines
US1774556A (en) * 1927-11-22 1930-09-02 E D Jones & Sons Co Jordan engine
US2120697A (en) * 1935-08-05 1938-06-14 Carborundum Co Apparatus for disintegrating fibrous substances
US2467938A (en) * 1945-12-15 1949-04-19 Joseph E Kennedy Reversible mantle for gyratory crushers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014108211A1 (en) * 2013-01-14 2014-07-17 Sandvik Intellectual Property Ab Gyratory crusher composite component
US10821562B1 (en) * 2019-06-14 2020-11-03 McCloskey International Limited Cone head wiper replacement method and apparatus

Also Published As

Publication number Publication date
DE1607559B1 (de) 1970-04-02
GB1205420A (en) 1970-09-16
FR1551431A (de) 1968-12-27
DE1607559C2 (de) 1974-10-03

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Legal Events

Date Code Title Description
AS Assignment

Owner name: REXNORD INC.

Free format text: CHANGE OF NAME;ASSIGNOR:REX CHAIN BELT INC.;REEL/FRAME:004713/0513

Effective date: 19850905

AS Assignment

Owner name: NORDBERG INC., A CORP. OF DE,WISCONSIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REXNORD INC.;REEL/FRAME:004834/0102

Effective date: 19880126

Owner name: NORDBERG INC., 3073 S. CHASE AVE., MILWAUKEE, WI 5

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:REXNORD INC.;REEL/FRAME:004834/0102

Effective date: 19880126

AS Assignment

Owner name: FIRST NATIONAL BANK OF BOSTON, THE, MASSACHUSETTS

Free format text: SECURITY INTEREST;ASSIGNOR:NORDBERG, INC., A DE CORP.;REEL/FRAME:004930/0280

Effective date: 19880729

Owner name: FIRST NATIONAL BANK OF BOSTON, THE, 100 FEDERAL ST

Free format text: SECURITY INTEREST;ASSIGNOR:NORDBERG, INC., A DE CORP.;REEL/FRAME:004930/0280

Effective date: 19880729

AS Assignment

Owner name: FIRST NATIONAL BANK OF BOSTON, THE, 100 FEDERAL ST

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:NORDBERG, INC., 3073 SOUTH CHASE AVE., MILWAUKEE, WI 53207, A DE CORP.;REEL/FRAME:005060/0994

Effective date: 19890308