EP0306023B1 - Gyratory crusher - Google Patents

Gyratory crusher Download PDF

Info

Publication number
EP0306023B1
EP0306023B1 EP19880114282 EP88114282A EP0306023B1 EP 0306023 B1 EP0306023 B1 EP 0306023B1 EP 19880114282 EP19880114282 EP 19880114282 EP 88114282 A EP88114282 A EP 88114282A EP 0306023 B1 EP0306023 B1 EP 0306023B1
Authority
EP
European Patent Office
Prior art keywords
undulations
mantle
gyratory crusher
crusher according
end area
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
Application number
EP19880114282
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0306023A1 (en
Inventor
Shigeto Fukumura
Tsukasa Katayama
Yorizou Kudou
Masahiko Nishi
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.)
Kawasaki Motors Ltd
Original Assignee
Kawasaki Jukogyo KK
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 Kawasaki Jukogyo KK filed Critical Kawasaki Jukogyo KK
Publication of EP0306023A1 publication Critical patent/EP0306023A1/en
Application granted granted Critical
Publication of EP0306023B1 publication Critical patent/EP0306023B1/en
Expired legal-status Critical Current

Links

Images

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

  • the present invention relates to a gyratory crusher according to the head portion of claim 1.
  • JP-A-61 263 655 is such a gyratory crusher comprising a crushing chamber composed of a mantle and a concave as shown, for example, in Fig. 7 and Fig. 8.
  • reference numeral 1 denotes an upper frame connected to an upper portion of a lower frame 2 situated on a base (not shown). Disposed to an upper portion is a hopper 3 adapted to serve as an inlet for minerals such as ores, rocks and so on. Furthermore, within the upper frame 1, a convex counter crushing member 4 of a conical frustrum shape is formed with its inner peripheral surface being smoothly curved so that it functions as a crushing surface.
  • an eccentric sleeve 5 having an eccentric axial bore formed therein is rotatably inserted into a boss 2a of the lower frame 2, and a main shaft 7 is rotatably thrusted into the eccentric sleeve 5.
  • the lower end of the main shaft 7 is carried by a lower bearing (not shown) such as a thrust bearing.
  • the upper end of the main shaft 7 is carrried by an upper bearing 8 such as a radial spherical bearing, and the upper bearing 8 is supported by a plurality of upper frame arms 9 provided to the upper frame 1.
  • the main shaft 7 is provided with a mantle 10 shaped in a conical frustrum through a mantle core 11.
  • the mantle 10 is a rotatable portion opposing to the convex member 4, forming a crushing chamber 12 therebetween.
  • the lower end of the eccentric sleeve 5 with the main shaft 7 thrusted therein is provided with a bevel gear 13.
  • the bevel gear 13 is engaged with a pinion bevel gear 15 attached to an inner end of a horizontal shaft 14.
  • the horizontal shaft 14 is supported by a casing 16 mounted on the frame 2 through a bearing 17, while the outer end of the horizontal shaft 14 is attached with a V-pulley 18 connected to an electric motor (not shown) through a V belt (not shown).
  • the electric motor is actuated to cause the eccentric sleeve 5 to rotate, and at the same time, the minerals are thrown through the hopper 3.
  • the mantle 10 Due to rotation of the eccentric sleeve 5, as the lower end of the main shaft 7 is eccentrically revolved, the mantle 10 is likewise eccentrically revolved, and the minerals are dropped into the crushing chamber 12 located between the mantle 10 and each to be trapped between two adjacent undulations 19 in the mantle 10 and the convex member 4 with their tendency to slide upwards or toward the circumference being limited according to gradual reduction of a space interposed among the inner peripheral surface of the convex member 4 and the two undulations adjacent to each other in the crushing surface of the mantle 10 while being successively crushed by compressing, bending and shearing functions so as to become crushed particles, and discharged out of the crusher through a lower portion of the crushing chamber 12 via a discharge port (not shown) of the lower frame 2.
  • the present invention was accomplished in order to remove the afore-mentioned problems involved in the prior art. It is therefore an object of the present invention to improve ability to crush the minerals, to lower the energy consumption, and further to minimize the stickiness of the crushed staff, so as to obtain the almost cubic-shaped particles, thereby to provide an improved gyratory crusher as a whole.
  • the present invention provides a gyratory crusher according to the features of claim 1.
  • Advantageous further embodiments are specified in the subclaims.
  • the present invention with the above-mentioned structure has the following functions.
  • a mineral thrown into a crushing chamber formed between a concave and a mantle is interposed between the concaved part of the mantle and that of the concave opposing to the mantle while some of the crushed particles being slipped into the both concaved parts, thereby the crushing operation composed of compressing, bending and shearing functions is processed according to a periodical change of the space between the mantle and the concave, specially due to the bending function with a relatively low crush-resistance and the relatively large shearing function, so that the crushing ability can be increased and the energy consumption for this can be much reduced, with the effect that the abrasingly crushing function is increased due to the movements of the particles in the concaved space on the both crushing surfaces, and consequently the crushed particles of the mineral can be minimized so as to acquire them in a cubic shape.
  • Fig. 1 is a front view of an important portion of a gyratory crusher according to thee first embodiment of the present invention, in which first undulations 19 are arranged in the crushing surface of the mantle 10.
  • the undulations 19 are formed successively at a uniform pitch towards the circumference of the mantle 10.
  • second undulations 20 are disposed in the crushing surface of the convex member 4 in the crushing surface of the convex member 4 in the crushing surface of the convex member 4 disposed.
  • the undulations 20 are formed successively at a uniform pitch towards the circumference of the convex member 4.
  • Fig. 2 is a schematic illustration for explaining the important portion shown in Fig. 1.
  • the crushing surface of the mantle 10 is of a conical frustrum shape, on which the first undulations 19 provided successively extending from the upper end to the lower end area are downwardly canted in complience with the rotating direction of the mantle 10 (counterclockwise as shown in Fig. 2A); in other words, these first undulations 19 are leftwardly twisted.
  • the crushing surface of the convex member 4 forming a rotationally curving surface is provided with the second undulations 20, which are formed successively extending from the upper end to the lower end area being downwardly canted in the different direction from that of the first undulations 19 of the mantle 10 so as to face them diagonally, in other words, these undulations are rightwardly twisted.
  • Figs. 3A to 5C are schematic illustrations for showing the state of the undulations 19 and 20 in the first embodiment.
  • the first undulations 19 formed in the crushing surface of the mantle 10 are successively provided at a uniform pitch extending from the upper end area to the lower end area thereof and downwardly canted in compliance with the predetermined rotating direction of the mantle 10 itself.
  • the second undulations 20 formed in the crushing surface of the member 4 are successively provided at a uniform pitch extending from the upper end area to the lower end area thereof and downwardly canted in such a direction as to face the first undulations 19 diagonally.
  • the second undulations 20 formed in the crushing surface of the member 4 are successively provided extending from the upper end area to the lower end area thereof at a uniform pitch along the generator line extended from the vertical axis of the convex member 4.
  • the second undulations 20 formed in the crushing surface of the member 4 successively provided at a uniform pitch extending from the upper end area to the lower end area thereof and downwardly canted in substantially the same direction as the first undulations 19.
  • the first undulations 19 formed in the crushing surface of the mantle 10 are successively provided extending from the upper end area to the lower end area thereof at a uniform pitch along the generator line extended from the vertical axis of the mantle 10, while the undulations 20 formed in the crushing surface of the second member 4 are successively provided at a uniform pitch extending from the upper end area to the lower end area thereof and downwardly canted in such a direction as to face the first undulations 19 diagonally.
  • the first undulations 19 formed in the crushing surface of the mantle 10 are successively provided at a uniform pitch extending from the upper end area to the lower end area thereof and downwardly canted against the predetermined rotating direction of the mantle 10 itself.
  • the second undulations 20 formed in the crushing surface of the member 4 are successively provided at a uniform pitch extending from the upper end area to the lower end area thereof and downwardly canted in substantially the same direction as the first undulations 19.
  • the second undulations 20 formed in the crushing surface of the member 4 are successively provided extending from the upper end area to the lower end area thereof at a uniform pitch along the generator line extending from the vertical axis of the member 4.
  • the second undulations 20 formed in the crushing surface of the member 4 are successively provided at a uniform pitch extending from the upper end area to the lower end area thereof and downwardly canted in such a direction as to face the first undulations 19 diagonally.
  • a mineral thrown into a crushing chamber formed between a convex member and a mantle is interposed between the first crushing surface of the mantle and the second convex crushing surface opposing to the mantle while some of the crushed particles being slipped into the both concaved parts, thereby the crushing operation composed of compressing, bending and shearing functions is processed due to a periodical change of the space between the mantle and the convex member, specially due to the bending function with a relatively low crush-resistance and the relatively large shearing function, so that the crushing ability can be increased and the energy consumption for this can be much reduced.
  • a mineral to be crushed flows down being raised upward by the rotational movement of the mantle 10 in its crushing process, and also being raised upward by the second undulations 20 of the member 4, thereby the velocity of its flowing down is reduced, and the opportunity and frequency of the mineral being ground between the undulations 19 and 20 of the mantle 10 and the member 4 respectively are increased, so that the shape of the ground particles is much improved.
  • a mineral to be crushed flows down being raised upward by the undulations 20 of the member 4 in its crushing process due to the rotational movement of the mantle 10, thereby the frequency and opportunity of the mineral being ground between the undulations 19 and 20 is increased, so that the shape of the ground particles is improved.
  • the grinding effect is reduced compared with that in Fig. 3A. although its grinding speed becomes faster than that.
  • a mineral to be crushed is pushed into the lower part of the mantle 10 by the function of the second undulations 20 of the member 4, and therefore, the speed of its flowing down in the crushing chamber is increased, thereby the frequency and opportunity of being ground is reduced, so that the shape of the ground particles thus deteriorates, although on the other hand the grinding speed of the mineral increases.
  • the grinding effect is reduced compared with that in Fig. 3C, but its graining speed is much faster than that.
  • a mineral to be crushed is pushed into the lower part of the mantle 10 due to the rotational movement in its crushing process, and is also raised upward by the function of second undulations 20 of the member 4 so as to reduce the speed of its flowing down in the crushing chamber, thereby the frequency and opportunity of the mineral being ground is increased, so that the shape of the ground particles can be improved.
  • the grinding effect is reduced compared with those shown in Figs. 3A and 4A, although its grinding speed is increased.
  • a mineral thrown into the crushing chamber is ground between the undulations 19 and 20 just as shown in Fig. 5A.
  • the effectiveness of these structures can be ranked in the order of Fig. 5A, 58 and 5C in proportion to the acuteness of the angle made by the downwardly canted second undulations 20, so that the frequency and opportunity of the mineral being ground is reduced in the above order, and accordingly the shape of the particles deteriorates, although the grinding speed of the mineral is increased.
  • the effectiveness of the grinding is deteriorated, although the grinding speed of the minerals are much increased.
  • Figs. 6A and 6B are plan and front views showing the important portion of the second embodiment according to the present invetion.
  • the only difference between the first embodiment and the second embodiment is in that the crushing surface of the mantle 10 is formed in a continuation of a straight line in the first embodiment, while that is formed in a continuation of a concavely curved line in the second embodiment, thus the explanation about the function or the structure of the second embodiment is omitted here.
  • the gyratory crusher according to this invention is practically effective in various ways in which the crushing surface of a mantle and that of a concave promote the crushing function of the minerals thrown into the interposed space between the undulations of the both surfaces, being affected by the compresing, bending, shearing and grinding functions.
  • the crushing effects of the gyratory crusher can be much improved, and consequently the energy consumption can be much lowered.
  • complementary movements of the undulations (concaved and convexed portions) improves the mineral grinding function, thereby the size of the ground particles can be more minimized so as to make them in a cubic-shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP19880114282 1987-09-03 1988-09-01 Gyratory crusher Expired EP0306023B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22085287A JPS6463052A (en) 1987-09-03 1987-09-03 Rotary crusher
JP220852/87 1987-09-03

Publications (2)

Publication Number Publication Date
EP0306023A1 EP0306023A1 (en) 1989-03-08
EP0306023B1 true EP0306023B1 (en) 1992-01-15

Family

ID=16757549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880114282 Expired EP0306023B1 (en) 1987-09-03 1988-09-01 Gyratory crusher

Country Status (4)

Country Link
EP (1) EP0306023B1 (ru)
JP (1) JPS6463052A (ru)
AU (1) AU605624B2 (ru)
DE (1) DE3867769D1 (ru)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0771641B2 (ja) * 1991-03-27 1995-08-02 川崎重工業株式会社 旋動式破砕機の歯板
JP2571172B2 (ja) * 1992-04-20 1997-01-16 川崎重工業株式会社 旋動式破砕機の歯板
FR2695660B1 (fr) * 1992-09-16 1995-11-10 Moulinex Sa Dispositif de connexion d'une cassette demineralisation montee sur un dispositif de repassage a vapeur.
JP2782148B2 (ja) * 1993-05-12 1998-07-30 川崎重工業株式会社 羽根を備えた旋動式破砕機
CN103521289A (zh) * 2012-10-23 2014-01-22 洛阳天信矿山机械制造有限公司 一种圆锥破碎机
DE102013008612B4 (de) * 2013-05-22 2022-08-11 Thyssenkrupp Industrial Solutions Ag Kreiselbrecher
MY190268A (en) * 2015-03-30 2022-04-11 Yoonsteel M Sdn Bhd Replacement cone crusher wear liners
CN108325595B (zh) * 2018-01-09 2023-06-02 江苏徐工工程机械研究院有限公司 一种圆锥式破碎机偏心度调节机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB428742A (en) * 1934-07-14 1935-05-17 Raymond Edwin Browning Improvements in rock crushers
DE835248C (de) * 1950-03-29 1952-03-31 Karl Brieden & Co K G Maschf Kreiselbrecher
DE1107052B (de) * 1958-02-05 1961-05-18 Esch Werke Kg Kreiselbrecher
JPS61263655A (ja) * 1985-05-17 1986-11-21 川崎重工業株式会社 旋動式破砕機
AU578377B2 (en) * 1986-09-30 1988-10-20 Kawasaki Jukogyo Kabushiki Kaisha Gyratory crusher

Also Published As

Publication number Publication date
JPH043260B2 (ru) 1992-01-22
EP0306023A1 (en) 1989-03-08
JPS6463052A (en) 1989-03-09
AU605624B2 (en) 1991-01-17
DE3867769D1 (de) 1992-02-27
AU2183988A (en) 1989-03-09

Similar Documents

Publication Publication Date Title
DE3431636C1 (de) Ringspalt-Kugelmuehle
EP0306023B1 (en) Gyratory crusher
US4606506A (en) Vertical type roller mill
KR20010013531A (ko) 로터리식 분쇄기
CA1182088A (en) Synchronously coordinated counterrotated crusher roll teeth system
US5046670A (en) Crushing device
CN1050146A (zh) 颗粒物料磨碎装置
JP3273394B2 (ja) 機械式粉砕装置
US20050109864A1 (en) Micron hammermill
CN217288613U (zh) 一种研磨装置
US4830289A (en) Centrifugal fluidized grinding apparatus
CN210994582U (zh) 球磨机内衬组件、球磨机转筒及球磨机
JP2598136B2 (ja) 竪型粉砕機
JPS61254260A (ja) 旋動式破砕機
SU1639964A1 (ru) Измельчитель древесины
KR200355885Y1 (ko) 해머밀용 일체형 분쇄해머
CN219377360U (zh) 超细微粒高速粉碎刀盘及固体粉碎机
CN113180500B (zh) 立式直排研磨刀组
RU2164173C1 (ru) Измельчитель-классификатор
CN2279210Y (zh) 一种高效率磨浆机
AU666074B2 (en) Gyration-type crushing machine
JP3194414B2 (ja) 旋動式破砕機
JP4807812B2 (ja) 砕石等処理装置
KR900004437Y1 (ko) 초경바이트가 삽입용착된 원추형 분쇄기
JPH01184043A (ja) 旋動式破砕機

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19890907

17Q First examination report despatched

Effective date: 19891221

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

ITF It: translation for a ep patent filed
ET Fr: translation filed
REF Corresponds to:

Ref document number: 3867769

Country of ref document: DE

Date of ref document: 19920227

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990901

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990909

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991123

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000901

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050901