EP0306023A1 - Kreiselbrecher - Google Patents

Kreiselbrecher Download PDF

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Publication number
EP0306023A1
EP0306023A1 EP88114282A EP88114282A EP0306023A1 EP 0306023 A1 EP0306023 A1 EP 0306023A1 EP 88114282 A EP88114282 A EP 88114282A EP 88114282 A EP88114282 A EP 88114282A EP 0306023 A1 EP0306023 A1 EP 0306023A1
Authority
EP
European Patent Office
Prior art keywords
undulations
end area
crushing surface
crushing
mantle
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.)
Granted
Application number
EP88114282A
Other languages
English (en)
French (fr)
Other versions
EP0306023B1 (de
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 Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
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 Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Publication of EP0306023A1 publication Critical patent/EP0306023A1/de
Application granted granted Critical
Publication of EP0306023B1 publication Critical patent/EP0306023B1/de
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00Crushing or disintegrating by gyratory or cone crushers
    • B02C2/005Lining

Definitions

  • the present invention relates to a gyratory crusher particularly of the type with an improved crushing surface of a concave and that of a mantle.
  • hither-to-known gyratory crushers comprise 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 concave 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 concave 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 concave 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 concave 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 (refer
  • 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 cosumption, 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 comprises crushing surfaces on a mantle and on a concave, both of which are provided with a continuation of undulations in the direction respectively towards their circumferences.
  • 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 the first embodiment of the present invention, in which the 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.
  • undulations 20 are disposed in the crushing surface of the concave 4 .
  • the undulations 20 are formed successively at a uniform pitch towards the circumference of the concave 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 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 undulations 19 are leftwardly twisted.
  • the crushing surface of the concave 4 forming a rotationally curving surface is provided with the 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 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 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 undulations 20 formed in the crushing surface of the concave 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 undulations 19 diagonally.
  • the undulations 20 formed in the crushing surface of the concave 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 concave 4.
  • the undulations 20 formed in the crushing surface of the concave 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 undulations 19.
  • the 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 concave 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 undulations 29 diagonally.
  • the 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 undulations 20 formed in the crushing surface of the concave 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 undulations 19.
  • the undulations 20 formed in the crushing surface of the concave 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 concave 4.
  • the undulations 20 formed in the crushing surface of the concave 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 undulations 19 diagonally.
  • a mineral thrown into a crushing chamber formed between a concave and a mantle is interposed between a concave and a mantle is interposed between the cocaved 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 due 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.
  • 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 undulations 20 of the concave 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 concave 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 concave 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 undulations 20 of the concave 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 undulations 20 of the concave 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, 5B and 5C in proportion to the acuteness of the angle made by the downwardly canted 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 Kreiselbrecher Expired EP0306023B1 (de)

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 true EP0306023A1 (de) 1989-03-08
EP0306023B1 EP0306023B1 (de) 1992-01-15

Family

ID=16757549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880114282 Expired EP0306023B1 (de) 1987-09-03 1988-09-01 Kreiselbrecher

Country Status (4)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0506126A1 (de) * 1991-03-27 1992-09-30 Kawasaki Jukogyo Kabushiki Kaisha Brechwerkzeug eines Kegelbrechers
EP0567077A2 (de) * 1992-04-20 1993-10-27 Kawasaki Jukogyo Kabushiki Kaisha Brechwerkzeug für Kreiselbrecher
CN1046012C (zh) * 1992-09-16 1999-10-27 幕林克斯公司 蒸汽熨烫设备
WO2014187713A1 (de) * 2013-05-22 2014-11-27 Thyssenkrupp Industrial Solutions Ag Kreiselbrecher
GB2537022A (en) * 2015-03-30 2016-10-05 Yoonsteel (M) Snd Bhd Replacement cone crusher wear liners
CN108325595A (zh) * 2018-01-09 2018-07-27 徐工集团工程机械有限公司 一种圆锥式破碎机偏心度调节机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (4)

* 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
FR1042817A (fr) * 1950-03-29 1953-11-04 Karl Brieden & Co K G Maschf Perfectionnements apportés aux broyeurs ou concasseurs ?irculaires
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU578377B2 (en) * 1986-09-30 1988-10-20 Kawasaki Jukogyo Kabushiki Kaisha Gyratory crusher

Patent Citations (4)

* 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
FR1042817A (fr) * 1950-03-29 1953-11-04 Karl Brieden & Co K G Maschf Perfectionnements apportés aux broyeurs ou concasseurs ?irculaires
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

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0506126A1 (de) * 1991-03-27 1992-09-30 Kawasaki Jukogyo Kabushiki Kaisha Brechwerkzeug eines Kegelbrechers
AU641329B2 (en) * 1991-03-27 1993-09-16 Earthtechnica Co., Ltd. Crushing member of gyratory crusher
EP0567077A2 (de) * 1992-04-20 1993-10-27 Kawasaki Jukogyo Kabushiki Kaisha Brechwerkzeug für Kreiselbrecher
EP0567077A3 (de) * 1992-04-20 1994-04-06 Kawasaki Heavy Ind Ltd
CN1046012C (zh) * 1992-09-16 1999-10-27 幕林克斯公司 蒸汽熨烫设备
WO2014187713A1 (de) * 2013-05-22 2014-11-27 Thyssenkrupp Industrial Solutions Ag Kreiselbrecher
US9962708B2 (en) 2013-05-22 2018-05-08 Thyssenkrupp Industrial Solutions Ag Gyratory crusher
AU2014270565B2 (en) * 2013-05-22 2018-05-10 Flsmidth A/S Gyratory crusher
GB2537022A (en) * 2015-03-30 2016-10-05 Yoonsteel (M) Snd Bhd Replacement cone crusher wear liners
GB2537022B (en) * 2015-03-30 2020-03-25 Yoonsteel M Sdn Bhd Replacement cone crusher wear liners
CN108325595A (zh) * 2018-01-09 2018-07-27 徐工集团工程机械有限公司 一种圆锥式破碎机偏心度调节机构

Also Published As

Publication number Publication date
AU605624B2 (en) 1991-01-17
JPH043260B2 (de) 1992-01-22
EP0306023B1 (de) 1992-01-15
JPS6463052A (en) 1989-03-09
AU2183988A (en) 1989-03-09
DE3867769D1 (de) 1992-02-27

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