US3734418A - Sandcone crusher - Google Patents

Sandcone crusher Download PDF

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Publication number
US3734418A
US3734418A US00143142A US3734418DA US3734418A US 3734418 A US3734418 A US 3734418A US 00143142 A US00143142 A US 00143142A US 3734418D A US3734418D A US 3734418DA US 3734418 A US3734418 A US 3734418A
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United States
Prior art keywords
crusher
mantle
rock crusher
rock
bowl liner
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Expired - Lifetime
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US00143142A
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English (en)
Inventor
L Johnson
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Cedarapids Inc
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Individual
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Publication of US3734418A publication Critical patent/US3734418A/en
Assigned to IOWA MANUFACTURING COMPANY reassignment IOWA MANUFACTURING COMPANY MERGER (SEE DOCUMENT FOR DETAILS). Assignors: EL-JAY, INC.
Assigned to CEDARAPIDS, INC. reassignment CEDARAPIDS, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: IOWA MANUFACTURING COMPANY OF CEDAR RAPIDS, IOWA
Anticipated expiration legal-status Critical
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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
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
    • B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
    • B02C2/045—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with bowl adjusting or controlling mechanisms

Definitions

  • a crusher has a crusher head that is gyrated relative to a crusher bowl.
  • the crusher head supports an annular mantle held by a mantle washer and a clam clamped to a self-tightening nut by a clam bolted to the nut.
  • the washer covers chamber in the crusher head and has drain holes for SANDCONE CRUSHER Inventor: Louis W. Johnson, 3440 Franklin Boulevard Eugene, Oreg. 97403 Filed: May 13, 1971 Appl. No,: 143,142
  • An object of the invention is to provide a new and improved rock Crusher.
  • Another object of the invention is to provide a new and improved rock crusher of the gyratory crusher head type.
  • a further object of the invention is to provide a new and improved mantle securing structure.
  • Another object of the invention is to provide a selflocking mantle structure.
  • Another object of the invention is to provide a moisture draining Crusher head.
  • Another object of the invention is to provide a crusher having an annular mantle clamped against a crusher head by a frustoconical washer secured by a clamping plate bolted to a self-tightening nut screwed onto the crusher head.
  • Another object of the invention is to provide a crusher having a distributor plate mounted on the crusher head below a center discharge hopper.
  • Another object of the invention is to provide a crusher having an overhanging bowl which protects an outer hopper from abrasion.
  • Another object of the invention is to provide a crusher of the attrition type having narrow crushing surfaces at angles at which lines of force on a mantle thereof are inside an annular bearing supporting a Crusher head carrying the mantle.
  • Another object of the invention is to provide a Crusher wherein a bonnet liner is supported by quickreleasing eyebolts secured by self-locking pins to a web of the liner.
  • Another object of the invention is to provide a Crusher wherein a wedging ring is held by fluted draw bolts.
  • Another object of the invention is to provide a crusher having an annular deflector plate overhanging on a rim of a crusher head structure to protect the rim from falling rocks.
  • FIG. 1 is a fragmentary, vertical, sectional view of a rock crusher forming one embodiment of the invention
  • FIG. 2 is a fragmentary, plan view taken along line 2-2 of FIG. 1;
  • FIG. 3 is an enlarged, fragmentary, vertical, sectional view taken along line 3-3 of FIG. 2;
  • FIG. 4 is an enlarged, fragmentary, vertical sectional view taken along line 4-4 of FIG.
  • FIG. 5 is an enlarged, fragmentary, vertical, sectional view of the crusher head mounting
  • FIG. 6 is a fragmentary, vertical, sectional view of a rock crusher forming an alternate embodiment of the invention.
  • the crusher 10 includes a main frame 11, which for gyration supports a Crusher head 13 on a thrust bearing 15 on a camming member 17 which, in turn is rotatably supported on bearing 19 on the inner shell 21 of the frame 11.
  • the camming member 17 is driven by a drive system 23 like that disclosed in above-mentioned U.S. Pat. No.
  • the Crusher head is gyrated and rocked by the drive system and the camming member.
  • a bonnet support 33 is supported on the frame 11 through a flange 35 of the bonnet support and a plurality of support assemblies 37.
  • a bonnet 39 is held down against the upper surface 41 of the support 33 by the pressure exerted by cylinder units 43 through piston rods 45 pressing against upper surface 47 of the bonnet 39.
  • a hold-down frame 49 is supported on rods 5l on the flange 35 of bonnet support 33. This hold-down system is disclosed in more detail in my prior U.S. Pat. Nos. 3,281,083 and 3,337,143.
  • a bowl liner 53 is clamped by eyebolts 55 to a support ring 57 which is attached to the bonnet 39 by drawstuds 59 with longitudinal flutes 61 (FIG. 3) and rectangular nuts 63 with are loosely supported by pairs of angles 62 welded to a split wedging ring 65, the angles 62 serving to keep the nuts 63 to the ring 65 and held against rotation.
  • the wedging ring 65 clamps the support 57 tightly between bonnet 39 and clamp bars 67.
  • Self-aligning nuts 66 seated in spherical aligning sockets 68 in the clamp bars 67 press the clamp bars tightly against flange 70 of the support ring 57.
  • the clamp bars 67 bear on outboard fulcrum posts 72 welded to the bonnet 39 and having braces 74 welded to the bonnet. Rubber tubes 76 are longitudinally compressed betwen the clamp bars and the upper face of the bonnet.
  • Each eye-bolt 55 includes a center bolt section 81 integral with a clevis 83, which straddles a web 88 of the bowl liner 53 and projects into a recess 85 provided in upwardly extending flange 87 of the liner 53.
  • Selflocking pins 89 having annular grooves 90 connect the clevises 83 to the webs, the clevises pulling up into the grooves 90 to lock the pins against endwise movement.
  • the pins 89 have wear plug heads 92 contoured to the tapered inner face of the flange 87.
  • the support ring 57 and the bowl liner 53 can be easily lifted out through the top of the crusher after removing the hopper and unscrewing nuts 66 and removing bars 67. The bowl liner 53 then can be easily removed from the ring 57 after loosening nuts 73 and pulling pins 89.
  • the flange 87 is frustoconical in shape and upper edge 93 protects the lower edge 95 of hopper liner 97 from wear from the bed of material as it pulsates up and down during the crushing operation.
  • the liner 97 is mounted inside of hopper 91, and can be replaced if wear develops.
  • the bowl liner 53 when worn, can be rapidly removed for replacement by removing the bolts 59, removing the hopper 91, and lifting the bowl liner 53 directly out through the top of the Crusher 10.
  • a self-tightening mantle 99 (FIG. 5) is supported by a flange 101 of the crushing head 13 and is clamped to the flange 101 by bolts 103 passing through holes 105 in a clamping plate 107 and through holes 109 in the top flange 111 of a self-tightening nut 113. Nuts 115, one flat of each of which engages the inner periphery of the nut 113, are screwed onto the bolts.
  • inclined surface 117 of clamping plate 107 is pressed downwardly and outwardly on inclined surface 1 19 of a mantle washer 121 to wedge the periphery 122 against inside edge 123 of the mantle 99 to press the mantle against the flange and lock the mantle in place.
  • the nut 113 is screwed onto threads 125 of a threaded ring 127 secured to the top of the crushing head 13.
  • the ring 127 is split in two, and is secured to the head 13 by cap screws (not shown). If during the operation of the crusher the mantle 99 should become loose and turn, it will automatically turn the nut 113 in a direction that will cause it to become tighter, this being a continuous tightening action, or self-tightening.y
  • a distributor plate 129 with feeder pickets 131 welded to its top 133 is secured by bolts 135 and nuts 137 to a flange 139 of the clamping plate 107.
  • the plate 129 is spaced upward for bolt head clearance by ring 141 and gasket 143.
  • the plate 129 covers the bolts 103 and with the gasket keeps dust and grit away from the bolts.
  • the hoppers and the mantle structure are removed. Then the distributor plate 133 and the bolts 103 and nuts 115 are removed, and the clamping plate 107, the washer 121 and the mantle are lifted out of the crusher. A space is provided between the nut 113 and the clamping plate 107 to provide access for cutting the bolts 103 in the event that the nuts should become frozen to the bolts.
  • thick tapered wear plates 150 forming segments of a frustum are secured to the washer by bolts 152 and nuts 154.
  • the outer edges of the wear plates are beveled and the wear plates have upstanding inner flanges 156.
  • the heads of the bolts fit into counterbored bosses 158 and thin rectangular pad portions 160 bear on the washer and space the wear plates slightly from the upper surface of the washer ⁇
  • the material to be crushed is fed into the crusher by way of the center distributing hopper 145 in the outer hopper 91 to the center of the gyrating distributor plate 129.
  • a plurality of narrow notches 163 in the periphery 122 of the washer 121 provide drains into a lower compartment 165 formed in the crushing head 13. Ports 167 are provided to drain the water so that it will pass out through the bottom ofthe crusher along with the crushed material.
  • the crushing surfaces 147 and 149 are narrow and cause the rock to grind on itself in what is termed attrition grinding.” This causes the rock to be crushed exceedingly fine.
  • the inclination of the surfaces to the longitudinal axis of the crusher head and the height of the surface 147 above thrust bearings 19 and 170 supporting the crusher head are such that the resultant forces on the surface are substantially all inside the annular bearings 19 and 170. This eliminates overhung loading of the thrust bearings. The closer the lines of force are to the center of the thrust bearings, the longer their life.
  • a rock crusher shown in FIG. 6 and forming an alternate embodiment of the invention is identical to the rock crusher shown in FIGS. 1-5 except for a bowl lining retaining system 210.
  • the system 210 comprises lever bars 212 (only one of which is shown) having one end pivotal in a loop or eye 214 welded to bowl ring 216, which is like the ring 57.
  • the other end of the bar extends through eye 218 extending upwardly from bowl liner 220 loosely through a hole 222 in a flange of the bowl ring.
  • the bowl liner 220 is generally like the bowl liner 53.
  • a jackscrew 226 screwed through tapped bore 228 in the bar 212 bears against the bowl ring 216 and forces the bowl liner tightly against the bowl ring.
  • crusher head means having an outer frustoconical support surface
  • mantle means having an outer mantle portion resting on the support surface and an inner thrust portion, the mantle means having an upwardly cupped portion having drain openings,
  • crusher head means having an inner threaded boss means and an outer frustoconical support surface, nut means on the threaded boss means,
  • mantle means having an outer mantle portion resting on the support surface and an inner thrust portion slidable on the nut means
  • thrust means comprises a frustoconcal washer having an inner sleeve-like portion slidable on the nut means.
  • the rock crusher of claim 5 including a distributor plate rcleasably secured to the clamping ring and covering the fastener means.
  • the rock Crusher of claim 7 including drain openings in the cupped portion.
  • the rock Crusher of claim 10 wherein the fastener means include eyebolts, pins securing the eyebolts to the bowl liner and nuts on the eyebolts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
US00143142A 1971-05-13 1971-05-13 Sandcone crusher Expired - Lifetime US3734418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14314271A 1971-05-13 1971-05-13

Publications (1)

Publication Number Publication Date
US3734418A true US3734418A (en) 1973-05-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00143142A Expired - Lifetime US3734418A (en) 1971-05-13 1971-05-13 Sandcone crusher

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US (1) US3734418A (OSRAM)
CA (1) CA968771A (OSRAM)
DE (1) DE2223510A1 (OSRAM)
FR (1) FR2137461B1 (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130152372A1 (en) * 2011-07-08 2013-06-20 Metso Minerals Industries, Inc. Locking nut assembly for a cone crusher

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2719148C1 (ru) 2016-04-08 2020-04-17 Метсо Свиден Аб Дробилка, содержащая сменную защитную броню

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670142A (en) * 1947-08-04 1954-02-23 Nordberg Manufacturing Co Attrition mill
US2901189A (en) * 1954-08-23 1959-08-25 Pettibone Mulliken Corp Cone crushing mechanism
US3118623A (en) * 1961-01-09 1964-01-21 Louis W Johnson Rock crusher
US3329356A (en) * 1964-03-24 1967-07-04 Nordberg Manufacturing Co Crusher feeding apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670142A (en) * 1947-08-04 1954-02-23 Nordberg Manufacturing Co Attrition mill
US2901189A (en) * 1954-08-23 1959-08-25 Pettibone Mulliken Corp Cone crushing mechanism
US3118623A (en) * 1961-01-09 1964-01-21 Louis W Johnson Rock crusher
US3329356A (en) * 1964-03-24 1967-07-04 Nordberg Manufacturing Co Crusher feeding apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130152372A1 (en) * 2011-07-08 2013-06-20 Metso Minerals Industries, Inc. Locking nut assembly for a cone crusher
US8832921B2 (en) * 2011-07-08 2014-09-16 Metso Minerals Industries, Inc. Locking nut assembly for a cone crusher

Also Published As

Publication number Publication date
FR2137461A1 (OSRAM) 1972-12-29
FR2137461B1 (OSRAM) 1973-06-29
CA968771A (en) 1975-06-03
DE2223510A1 (de) 1972-11-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: IOWA MANUFACTURING COMPANY OF CEDAR RAPIDS, IOWA

Free format text: MERGER;ASSIGNOR:EL-JAY, INC.;REEL/FRAME:003960/0831

Effective date: 19790226

AS Assignment

Owner name: CEDARAPIDS, INC.

Free format text: CHANGE OF NAME;ASSIGNOR:IOWA MANUFACTURING COMPANY OF CEDAR RAPIDS, IOWA;REEL/FRAME:004446/0003

Effective date: 19850702