US3536267A - Bowl liner and mantle with multiple crushing zones - Google Patents
Bowl liner and mantle with multiple crushing zones Download PDFInfo
- Publication number
- US3536267A US3536267A US692100A US3536267DA US3536267A US 3536267 A US3536267 A US 3536267A US 692100 A US692100 A US 692100A US 3536267D A US3536267D A US 3536267DA US 3536267 A US3536267 A US 3536267A
- Authority
- US
- United States
- Prior art keywords
- zone
- crushing
- zones
- mantle
- parallelism
- 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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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/10—Shape or construction of jaws
Definitions
- Crushers having a crushing gap inclined obliquely to the horizontal, the gap being bounded by an upper and a lower relatively movable crushing member.
- Crushers of this type may be in the form of Crushers having a generally conical gyrated head, or having opposed jaws, one or more of which is movable.
- This invention relates primarily to removable and replaceable wear taking members for Crushers of the above types, in which an oblique crushing gap has differentiated zones through which the material undergoing crushing must pass.
- the crushing gap includes a rst or upper zone bounded by downwardly and inwardly converging crushing faces, a second zone with a constant cross-section, defined by opposed, generally parallel walls, a third or expansion zone, where the walls are ared apart, and a fourth or nal zone of parallelism, of smaller radial width than the second xzone.
- the invention may appropriately be applied to both cone and jaw Crushers.
- One purpose is to provide removable wear taking parts for such crushers in which the lower Crusher part is moved downwardly away from the normally iixed upper crushing part at such frequency and speed that the material to be crushed drops by gravity during each opening movement of the crushing parts. During the following upward closing movement of the lower crushing part the particles crushed are carried back against the upper or overhanging crushing part, as the material undergoing crushing slides obliquely down the lower crushing part.
- a primary purpose of the invention is to provide a formation of crushing parts which insures a sharp-edged, generally cubic grain or particle of generally uniform size, as a result of the crushing action.
- Another purpose is to provide such wearing parts in which each grain or fragment receives a plurality of crushing nips between the opposed crushing parts, with an intermediate stage in which particle is forced against particle.
- Another purpose is to provide crushing parts which insure that the discharged material is substantially limited to sharp-edged cubic particles and is free, for example, from plates or particles of flat or other undesired shape.
- Another purpose is to provide a formation of the opposed crushing parts which insures a pressing against each other of the partly reduced grains or fragments, with a resultant breaking up of substantially all stem and platelike grains or particles.
- Another purpose is to provide crushing members delining a plurality of crushing zones in which two zones of parallelism, which may be of unlike angularity in relation to horizontal, are separated by an expansion zone of increased separation between the two crushing parts.
- Another purpose is to provide wearing parts for cone crushers in which the various zones above described are 3,536,267 Patented Oct. 27, 1970 formed, in part, by circumferential channels or depressions in either or both of the crushing members.
- FIG. 1 shows the shape and position of the opposed crushing parts of a prior art cone Crusher, in partial vertical section, illustrating the crushing parts at their closest approach;
- FIG. 2 is a similar section illustrating one embodiment of crushing parts of the present invention, in which a zone of expansion is provided by the formation of the upper crushing part;
- FIG. 3 is a similar section illustrating a variant contouring of the opposed crushing parts, the upper part being channeled;
- FIG. 4 is a similar section illustrating the formation of the zone of expansion by channeling the lower part
- FIG. 5 is a similar section illustrating the formation of the zone of expansion by channeling both Crusher parts
- FIG. 6 is a partial vertical axial section through a gyrated head crusher illustrating the formation of both crushing parts to perform the invention of the present application.
- FIG. 7 is a section through a jaw crusher, taken at right angles to the axes of the jaws, illustrating the application of the invention of the present application to a jaw Crusher.
- FIG. l illustrates, in vertical axial section, the contour of the typical wearing parts of a commercial type of a crusher with a generally conic gyrated head and a normally fixed bowl. It will be understood that these wearing parts, including a bowl liner 1 and a mantle 2, are arranged to be applied to a cone Crusher such as is shown in FIG. 6.
- a generally conic head 3 is shown as mounted at the upper end of gyrated shaft 4.
- the head 3 has a lower, generally spherical bearing surface 5 which is received on an upwardly spherical bearing surface 6 which may be suitably mounted on the crusher frame, a part of which is shown at 7.
- a bowl structure generally indicated at 8 is mounted on an outer part of the frame and is normally held in lixed position.
- the bowl liner 1 of FIG. 1 is applied to a -bowl such as the bowl 8 of FIG. 6, and the mantle 2 is applied to the outer, generally conical surface of a head, such as the head 3 of FIG. 6.
- the bowl liner 1 and the mantle 2 of FIG. 1 indicate conventional prior art crushing members.
- the crushing gap comprises only two zones, Z-1 and Z-Z, the material to be crushed being fed from above into the crushing gap or crushing cavity thus formed, and being crushed to size in the zone of parallelism Z-2.
- FIG. 1 represents the closest approach of the mantle 2 to the bowl liner 1, the terminal zone Z2 being eifective to nip all the particles fed downwardly through the zone Z-l.
- the zone Z-2 reduces granules to a certain size
- the individual particles may be plate-like or stem-like, or of other undesired shapes, rather than being sharp-edged and cubical.
- the crushing gap in each case comprises four zones which are indicated in all of the figures as an initial feed receiving zone, Z1, a zone of parallelism, Z-2, an expansion zone, Z-3, and a final sizing zone of parallelism, Z4.
- the third zone, Z3 has a radial cross-section, to receive the material undergoing crushing, which first increases, and then decreases, as the opposing faces of the two crushing members initially flare apart and subsequently converge.
- it is called an expansion zone.
- the zones Z-2 and Z-4 may be described as zones of parallelism, or of constant passage cross-section. It will be understood that the zone Z3, between the zones Z-2 and Z-4, may be formed by varying the contour of the bowl liner 1, or of the mantle 2, or of both of them.
- the inner surface of the bowl liner 1, as at 20, continues generally rectilinearly downwardly and outwardly beyond zone Z-Z, whereas the opposite surface 21 of the mantle 2 dlverges somewhat inwardly therefrom.
- the inner surface of the liner 1 again begins to converge toward the surface 21 of the mantle 2.
- the fourth zone, or the zone of parallelism or of constant cross-section, Z-4 terminates the crushing cavity, and all of the particles which had been fed into the upper part of the initial zone Z-l are discharged therefrom and receive a final crushing nip therein.
- FIG. 3 the provision of the four deslred zones 1s obtained by providing a channel circumferentially about the inner surface of the bowl liner 1. This channel 1s indicated at 30, with an outwardly aring wall portion 31 and a lower converging portion 32.
- the fourth zone, Z-4 has a somewhat smaller clearance than the second zone, Z-2.
- the zones Z-3 and Z-4 have substantially the same inclination, whereas in FIG. 2 the zone of parallelism, Z-2, is at a slightly different inclination than the zone Z4.
- FIG. 4 the desired provision of the four zones 1s provided by the employment of a circumferential channel in the mantle 2.
- This channel indicated generally at 40, has its upper divergent wall portion 41, and its lower converging wall portion 42.
- the fourth zone, Z-4 is somewhat more obtusely inclined to the vertical than is the zone of parallelism, Z-Z. This is the reverse of the relationship in FIG. 2 between zones Z-2 and Z4.
- both the bowl liner 1 and the mantle 2 are channeled to define the expanding and contracting form of expansion zone Z-3.
- the channel in the liner 1 is indicated at 50 and the opposed channel in the mantle 2 is indicated at 51, with their diverging wall portions 50a and 51a, and the converging wall portions 50b and Slb.
- the zones Z-2 and Z-4, zones of parallelism, may be at the same angle, or they may be varied somewhat.
- the fourth zone, Z-4 has a crushing gap somewhat less than the crushing gap of the second zone Z-2, and is the final sizing zone for the crushed material.
- FIG. 7 a jaw crusher in which an upper jaw 60 overhangs a lower jaw 61.
- the jaw plates 60a and 61a are contoured to define the four zones, Z-1, Z-2, Z-3 and Z-4, as shown in FIG. 7. It will be understood that whereas the contouring follows, in general, that of FIG. 2, it may be varied, if desired, to conform to one or another of FIGS. 3, 4, or 5.
- the upwardly flared initial zone Z-1 receives the material fed downwardly into the crushing cavity from any suitable feeding means, not shown.
- the second zone is a zone of parallelism or an initial sizing zone, as at Z-Z.
- the third zone, Z3, Whether formed by channeling either or both of the crushing members, is a zone of expansion in which the granules of the material undergoing crushing are contacted not only by the 'working surfaces of the crushing members but, also, to a major extent, are pressed against each other.
- the lower zone of parallelism, Z-4 is prevailingly of smaller radial clearance than the upper zone of parallelism, Z-2, while the intermediate expansion zone, Z3, has substantially greater radial clearance than the two zones of parallelism.
- the lower zone of parallelism may be at a more acute angle in relation to horizontal than the upper zone, as in FIG. '2, or this relationship may be reversed, as in FIG. 4.
- What is essential is that the intermediate zone of expansion, Z3, receives the material initially sized by the upper zone, Z-2., and delivers material to the lower or final crushing or sizing zone, Z4.
- crushing members have opposed, generally conic faces, the third zone being formed by opposed recesses extending circumferentially about both of the crushing members.
- Crusher parts for crushing rock and the like which include a stationary inclined upper crushing member opposed to and overhanging an inclined lower crushing member movable relative to the upper crushing member dening between them a sloping crushing gap inclined in relation to the horizontal, the opposed surfaces of the two members dening a rst zone having downwardly inclined convergent walls, a second zone having parallel inclined walls, a third zone dening an expansion chamber, the initial part of which is formed by outwardly divergent Walls, the terminal part of which is dened by downwardly convergent Walls leading to a fourth zone having parallel inclined Walls.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0090741 | 1967-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3536267A true US3536267A (en) | 1970-10-27 |
Family
ID=6985456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US692100A Expired - Lifetime US3536267A (en) | 1967-01-14 | 1967-12-20 | Bowl liner and mantle with multiple crushing zones |
Country Status (4)
Country | Link |
---|---|
US (1) | US3536267A (en) |
AT (1) | AT299666B (en) |
DE (1) | DE1607442A1 (en) |
GB (1) | GB1188061A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5998742A (en) * | 1982-11-29 | 1984-06-07 | 株式会社クボタ | Tow-stage crusher |
US20180036736A1 (en) * | 2012-10-25 | 2018-02-08 | Transmicron Llc | Parabolic vibration-pulse mill |
US20200324295A1 (en) * | 2019-04-09 | 2020-10-15 | Jiangxi University Of Science And Technology | Material Crushing Cavity Structure and Method for Designing a Multi-Stage Nested Material Crushing Cavity Structure |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR8105557A (en) * | 1981-09-01 | 1983-04-05 | Aco Paulista Sa | PERFECTING IN CONICO CRUSHER |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1607615A (en) * | 1922-09-30 | 1926-11-23 | Allis Chalmers Mfg Co | Crusher |
US2314414A (en) * | 1941-09-15 | 1943-03-23 | Hallie M Melvin | Rock crusher and disintegrator |
US2635818A (en) * | 1951-01-08 | 1953-04-21 | Nordberg Manufacturing Co | Gyratory crusher and liner and mantle therefor |
US3142449A (en) * | 1962-07-27 | 1964-07-28 | Nordberg Manufacturing Co | Lock structure for crusher adjustment |
US3273810A (en) * | 1963-12-26 | 1966-09-20 | Nordberg Manufacturing Co | Crusher clearing system |
-
1967
- 1967-01-14 DE DE19671607442 patent/DE1607442A1/en active Pending
- 1967-12-20 US US692100A patent/US3536267A/en not_active Expired - Lifetime
-
1968
- 1968-01-10 AT AT25268A patent/AT299666B/en not_active IP Right Cessation
- 1968-01-12 GB GB0949/68A patent/GB1188061A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1607615A (en) * | 1922-09-30 | 1926-11-23 | Allis Chalmers Mfg Co | Crusher |
US2314414A (en) * | 1941-09-15 | 1943-03-23 | Hallie M Melvin | Rock crusher and disintegrator |
US2635818A (en) * | 1951-01-08 | 1953-04-21 | Nordberg Manufacturing Co | Gyratory crusher and liner and mantle therefor |
US3142449A (en) * | 1962-07-27 | 1964-07-28 | Nordberg Manufacturing Co | Lock structure for crusher adjustment |
US3273810A (en) * | 1963-12-26 | 1966-09-20 | Nordberg Manufacturing Co | Crusher clearing system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5998742A (en) * | 1982-11-29 | 1984-06-07 | 株式会社クボタ | Tow-stage crusher |
US20180036736A1 (en) * | 2012-10-25 | 2018-02-08 | Transmicron Llc | Parabolic vibration-pulse mill |
US20200324295A1 (en) * | 2019-04-09 | 2020-10-15 | Jiangxi University Of Science And Technology | Material Crushing Cavity Structure and Method for Designing a Multi-Stage Nested Material Crushing Cavity Structure |
US11628445B2 (en) * | 2019-04-09 | 2023-04-18 | Jiangxi University Of Science And Technology | Material crushing cavity structure and method for designing a multi-stage nested material crushing cavity structure |
Also Published As
Publication number | Publication date |
---|---|
GB1188061A (en) | 1970-04-15 |
DE1607442A1 (en) | 1969-08-07 |
AT299666B (en) | 1972-06-26 |
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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 |