US3785578A - Feed distributor for crusher - Google Patents

Feed distributor for crusher Download PDF

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Publication number
US3785578A
US3785578A US00307051A US3785578DA US3785578A US 3785578 A US3785578 A US 3785578A US 00307051 A US00307051 A US 00307051A US 3785578D A US3785578D A US 3785578DA US 3785578 A US3785578 A US 3785578A
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United States
Prior art keywords
chute
feed
crusher
wall
annular
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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US00307051A
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English (en)
Inventor
R Kemnitz
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Allis Chalmers Corp
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Allis Chalmers Corp
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Assigned to WOODS KATHLEEN D., AS TRUSTEE, CONNECTICUT NATIONAL BANK THE, A NATIONAL BANKING ASSOCIATION AS TRUSTEE reassignment WOODS KATHLEEN D., AS TRUSTEE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALLIS-CHALMERS CORPORATION A DE CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C2/007—Feeding devices

Definitions

  • ABSTRACT A feed distributor is shown mounted above a frame United States Patent 1 ⁇ 111 3, K-emnitz I g [451 Jan. 15, 1974 1 FEED DISTRIBUTOR FOR CRUSHER and annular crushing chamber of a gyratory crusher.
  • the distributor has a cylindrical feed wall with an annular flange at its lower end adapted to be removably attached to the crusher frame, and a plurality of arms projecting radially inward from the feed wall to support a platform centrally located within the feed wall.
  • a feed chute is supported on the platform for rotation about a vertical axis centrally located with regard to the feed wall and annular crushing chamber. The chute projects radially outward and downward from a point where the chute intersects the vertical axis about which the chute rotates.
  • a feed hopper is supported by the feed wall over the'chute and the hopper has a discharge spout coaxial with the vertical axis about which the chute rotates.
  • a driving motor is supported by the feed wall and is drivingly connected to the chute to rotate the chute and turn the lower and discharge end of the chute in a horizontal annular path above the annular crushing chamber to discharge feed falling through the discharge spout of the hopper downwardly and outwardly from the lower end of the chute into and around the annular crushing chamber of the crusher.
  • the entire feed distributor including the cylindrical feed wall, may be pre-assembled and mounted on top of a crusher as a single unitary assembly, and removed therefrom as a single unitary assembly, thereby providing easy assembly, disassembly and access to the top of the crusher.
  • a first type involves transmitting the motion of a crushing cone, or the motion transmitted to a crushing cone, through gears or pulleys, to a feed distributor over the annular crushing chamber.
  • the feed distributor may be made to turn at a selected speed which may be considerably faster than the drive turns the cone or an eccentric bearing around the cone shaft.
  • a feed distributor of this type is shown in U.S. Pat. No. 475,330 of 1892. More modern versions of such a feed distributor are shown in, for example, U.S. Pat. No. 2,621,860 of 1952, and U.S. Pat; No. 2,917,247 of 1959.
  • a second type to appear in the prior art provides a feed distributing cone, pan or plate resiliently mounted above the crushing chamber and flexibly connected to the crushing cone so the turning or gyrating motion of the crushing cone causes the feed distributor to wobble and this motion is utilized to distribute feed material around the annular crushing chamber.
  • a feed distributor is shown in U.S. Pat. No. 1,761,240 of 1930; U.S. Pat. No. 2,586,122 of 1952; and U.S. Pat. No. 2,656,1200f1953.
  • a fourth type is exemplified by the aforesaid US. Pat. No. 3,506,203 and by U.S. Pat. No. 3,604,636 of 1971, which disclose feed distributors that direct a flow of feed material around anan nular crushing chamber and down an inclined path.
  • a complete feed distributor is mounted above a frame and annular crushing chamber of a gyratory crusher.
  • the distributor has a cylindrtical feed wall with an annular flange at its lower end adapted to be removably attached to the frame, and a plurality of arms projecting radially inward from the feed wall to support a platform centrally located within the feed wall.
  • a feed chute is supported on the platform for rotation about a vertical axis centrally located with regard to the feed wall and annular crushing chamber. The chute .projects radially outward and downward from a point where the chute intersects the vertical axis about which the chute rotates.
  • a feed hopper is supported by the feed wall over the chute and the hopper has a discharge spout coaxial with the vertical axis about which the chute rotates.
  • a driving motor is sup ported by the feed wall and is drivingly connected to the chute to rotate the chute and turn the lower and discharge end of the chute in a horizontal annular path above the annular curshing chamber to discharge feed falling through the discharge spout of the hopper downwardly and outwardly from the lower end of the chute into and around the annular crushing chamber of the crusher.
  • the entire feed distributor including the cylindrical feed wall, may be pre-assembled and mounted on top of a crusher as a single unitary assembly, and removed therefrom as a single unitary assembly, thereby providing easy assembly, disassembly and access to the top of the crusher.
  • a gyratory crusher comprising a frame top shell 2, an annular bowl 7 arranged within shell 2, and a conical crushing head 8 within bowl 7 that cooperates with bowl 7 to define an annular crushing chamber 10.
  • a feed distributor 12 is mounted on top of the frame top shell 2 and over the crushing chamber 10.
  • the distributor 12 has a cylindrical feed wall 14 with an inwardly projecting annular flange 16 at the lower end of wall 14.
  • the annular flange 16 is adapted to engage and seat on an annular flange 18 around the top of the frame top shell 2, and the annular flange 16 is secured to shell flange 18 by a plurality of bolts 20 projecting through holes 21 in flange 18, where bolts 20 are secured by nuts 20a.
  • a plurality of arms 22 project radially inward of wall 14 and a platform 24 is connected by bolts 26 to the inner ends of arms 22. The arms 22 and platform 24 are shown resting upon annular flange 16.
  • the bolts pass through a flange 27 on eaxh arm 22 before passing through flange l6 and top shell flange 18.
  • the same bolts, labeled 20, may serve to connect the arms 22 to the flange l6, and the entire distributor 12 to the crusher frame top shell 2.
  • a support 30 mounted on platform 24, carries a rotating assembly 32 for rotation about a vertical axis X-Y centrally located with regard to feed wall 14, bowl 7 and crushing chamber 10.
  • the support 30 comprises an upright post 34 connected to platform 24 as by weld 36, bearings 38 and 40 mounted around post 34, and a hub 42 mounted about bearings 38,40.
  • the hub 42 has a radially outward projecting flange 44.
  • the rotating assembly 32 comprises an annular collar 50 that rests on top of hub flange 44, and is secured thereto by a plurality of bolts 52.
  • An upright tubular support 54 is secured, as by welding, on top of collar 50 coaxial to the post 34 and hub 42 of the support 30.
  • the tubular support 54 is provided with an upper edge 56 which defines a plane that is inclined relative to the vertical axis X-Y.
  • a flat feed chute 58 has a lower portion 59 that projects radially outward and downward from a point 60 where chute 58 intersects vertical axis X-Y.
  • a cylindrical sleeve 62 is connected to an upper portion 64 of chute 58 by a weldment 66.
  • An annular sheave 70 is secured around the outer circumference of sleeve 62 by any suitable means (not shown).
  • a driving motor 72 is mounted on the outer circumference of wall 14 by a mounting bracket 74. Motor 72 has a drive shaft 76 and a driving sheave 78 is secured thereto.
  • An endless belt 80 drivingly connects sheave 78 to sheave 70.
  • the hopper 82 is mounted on top of the cylindrical feed wall 14 by a plurality of bolts 86 that connect hopper 82 to a flange 88 made integral with wall 14 at the top of wall 14.
  • feed material to be crushed is delivered by any suitable means (not shown) and dumped into feed hopper 82.
  • the feed material delivered to hopper 82 drops through the discharge spout 84 to land on the upper surface of feed chute 58.
  • Motor 72 turns drive shaft 76 and sheave 78 to transmit torque through belt 80 to rotate the annular sheave 70.
  • annular sheave 70 is turned the sleeve 62 and inclined feed chute 58 are rotated about post 34.
  • the feed material dropping on the upper surface of chute 58 flows downwardly and over the lower portion 59.
  • the rotation of chute 58 about vertical post 34 provides an even distribution of feed material around annular crushing chamber 10.
  • the entire distributor 12, including the stationary feed wall 14 and the rotating structures within wall 14, may be pre-assembled as a single unitary assembly, that then may be simply and easily mounted on a crusher by positioning and lowering the assembly, with bolts 20 passing downwardly through the holes 21 in the flange 18, for securing the distributor 12 to the crusher top shell 2.
  • the entire distributor 12, including the stationary feed wall 14 and the rotating structures within wall 14, may be simply and easily removed as a single unit by removing nuts 20a from bolts 20 and lifting the entire assembly off the crusher top shell 2, thus providing easy, quick and unencumbered access to the top of the crusher.
  • a feed distributor comprismg:
  • a feed chute supported on the platform for rotation about a vertical axis coaxial with the feed wall
  • a motor supported by the feed wall and drivingly connected to the chute to rotate the chute relative to the surrounding feed wall, with the cylindrical feed wall thereby carrying both the motor and the rotatable chute for unitary attachment to and removal from the crusher frame.
  • a crusher according to claim 1 in which the chute has a first portion that projects outward and downward from a point at which the chute intersects the vertical axis about which the chute rotates.
  • a crusher according to claim 2 in which the chute is planar and has a second portion that projects outward and upward from the point at which the chute intersects the vertical axis about which the chute rotates.
  • a crusher according to claim 3 in which the motor is drivingly connected to the chute by means including an annular sheave arranged with an'axis central thereto being coaxial with the vertical axis about which the chute rotates and with the annular sheave being connected to the second portion of the chute which projects outward and upward from the point where the chute intersects the vertical axis about which the chute rotates.
  • a crusher according to claim 3 in which a cylindrical sleeve is arranged around the second portion of the chute that projects outward and inward from the point at which the chute intersects the vertical axis about which the chute rotates, an annular sheave is secured around the outer circumference of the sleeve and coaxial to the sleeve, and an endless belt drivingly connects the motor to the annular sleeve to rotate the sleeve and the chute relative to the surrounding feed wall.
  • a crusher according to claim 5 in which a feed hopper is mounted on top of the cylindrical feed wall, with the'hopper having a depending discharge spout projecting downwardly and coaxially within the rotating sleeve to a level spaced vertically above the planar chute.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
US00307051A 1972-11-16 1972-11-16 Feed distributor for crusher Expired - Lifetime US3785578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30705172A 1972-11-16 1972-11-16

Publications (1)

Publication Number Publication Date
US3785578A true US3785578A (en) 1974-01-15

Family

ID=23188025

Family Applications (1)

Application Number Title Priority Date Filing Date
US00307051A Expired - Lifetime US3785578A (en) 1972-11-16 1972-11-16 Feed distributor for crusher

Country Status (11)

Country Link
US (1) US3785578A (it)
JP (1) JPS4981954A (it)
AU (1) AU458371B2 (it)
BE (1) BE807353A (it)
BR (1) BR7308999D0 (it)
CA (1) CA989793A (it)
DE (1) DE2357163A1 (it)
FR (1) FR2206983B1 (it)
GB (1) GB1449263A (it)
IT (1) IT996439B (it)
ZA (1) ZA738660B (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106707A (en) * 1977-06-17 1978-08-15 Allis-Chalmers Corporation Feed distributor for gyratory crusher
US20050194483A1 (en) * 2004-03-04 2005-09-08 Innotech Solutions, Llc Rotating feed distributor
US8056847B1 (en) 2010-07-08 2011-11-15 Innotech Solutions, Llc Rotating feed distributor
US20150174582A1 (en) * 2012-05-23 2015-06-25 Sandvik Intellectual Property Ab Vertical shaft impact crusher feed tube
CN114011499A (zh) * 2021-10-26 2022-02-08 谷往劲来无锡生物科技有限公司 一种灵芝孢子粉破壁装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2536549Y2 (ja) * 1992-12-14 1997-05-21 川崎重工業株式会社 旋動式破砕機の原料回転供給装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2207858A (en) * 1938-02-17 1940-07-16 Nordberg Manufacturing Co Feeding device for crushers
US2656120A (en) * 1949-10-10 1953-10-20 Allis Chalmers Mfg Co Material feed device for gyratory crushers
US3131876A (en) * 1962-04-02 1964-05-05 Nordberg Manufacturing Co Feed distributor assembly for cone crushers or the like
US3358939A (en) * 1965-08-11 1967-12-19 Nordberg Manufacturing Co Feeder for cone crushers and the like
US3614023A (en) * 1970-03-30 1971-10-19 Barber Greene Co Gyratory crusher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2207858A (en) * 1938-02-17 1940-07-16 Nordberg Manufacturing Co Feeding device for crushers
US2656120A (en) * 1949-10-10 1953-10-20 Allis Chalmers Mfg Co Material feed device for gyratory crushers
US3131876A (en) * 1962-04-02 1964-05-05 Nordberg Manufacturing Co Feed distributor assembly for cone crushers or the like
US3358939A (en) * 1965-08-11 1967-12-19 Nordberg Manufacturing Co Feeder for cone crushers and the like
US3614023A (en) * 1970-03-30 1971-10-19 Barber Greene Co Gyratory crusher

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106707A (en) * 1977-06-17 1978-08-15 Allis-Chalmers Corporation Feed distributor for gyratory crusher
US20050194483A1 (en) * 2004-03-04 2005-09-08 Innotech Solutions, Llc Rotating feed distributor
US7040562B2 (en) 2004-03-04 2006-05-09 Innotech Solutions, Llc Rotating feed distributor
US8056847B1 (en) 2010-07-08 2011-11-15 Innotech Solutions, Llc Rotating feed distributor
US20150174582A1 (en) * 2012-05-23 2015-06-25 Sandvik Intellectual Property Ab Vertical shaft impact crusher feed tube
US9550187B2 (en) * 2012-05-23 2017-01-24 Sandvik Intellectual Property Ab Vertical shaft impact crusher feed tube
CN114011499A (zh) * 2021-10-26 2022-02-08 谷往劲来无锡生物科技有限公司 一种灵芝孢子粉破壁装置

Also Published As

Publication number Publication date
AU458371B2 (en) 1975-02-27
BE807353A (fr) 1974-05-14
BR7308999D0 (pt) 1974-08-22
AU6252673A (en) 1975-02-27
CA989793A (en) 1976-05-25
IT996439B (it) 1975-12-10
ZA738660B (en) 1975-06-25
JPS4981954A (it) 1974-08-07
FR2206983A1 (it) 1974-06-14
GB1449263A (en) 1976-09-15
FR2206983B1 (it) 1976-06-25
DE2357163A1 (de) 1974-05-30

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WOODS KATHLEEN D., AS TRUSTEE

Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001

Effective date: 19830329

Owner name: CONNECTICUT NATIONAL BANK THE, A NATIONAL BANKING

Free format text: SECURITY INTEREST;ASSIGNOR:ALLIS-CHALMERS CORPORATION A DE CORP.;REEL/FRAME:004149/0001

Effective date: 19830329