WO2009066001A1 - Broyeur giratoire et procédé d'ajustement du réglage d'un broyeur giratoire - Google Patents

Broyeur giratoire et procédé d'ajustement du réglage d'un broyeur giratoire Download PDF

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Publication number
WO2009066001A1
WO2009066001A1 PCT/FI2008/050071 FI2008050071W WO2009066001A1 WO 2009066001 A1 WO2009066001 A1 WO 2009066001A1 FI 2008050071 W FI2008050071 W FI 2008050071W WO 2009066001 A1 WO2009066001 A1 WO 2009066001A1
Authority
WO
WIPO (PCT)
Prior art keywords
fitted
crusher
slide surface
main shaft
adjusting piston
Prior art date
Application number
PCT/FI2008/050071
Other languages
English (en)
Inventor
Kari Kuvaja
Aki Lautala
Original Assignee
Metso Minerals Inc.
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 Metso Minerals Inc. filed Critical Metso Minerals Inc.
Publication of WO2009066001A1 publication Critical patent/WO2009066001A1/fr

Links

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
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/02—Transportable disintegrating plant
    • B02C21/026—Transportable disintegrating plant self-propelled
    • 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
    • B02C2/047—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with head adjusting or controlling mechanisms
    • 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
    • B02C2/06—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with top bearing

Definitions

  • the invention relates to crushers, particularly gyratory crushers. More precisely, the invention relates to an apparatus and a method for adjusting the setting of a crusher.
  • a gyratory crusher comprises a frame provided with an outer crushing blade.
  • An inner crushing blade is fitted by means of a crushing head on a main shaft.
  • the main shaft is arranged to move in such a way that the inner crushing blade is in a kind of a pendulum motion with respect to the outer crushing blade.
  • the movement of the main shaft is typically produced by means of an eccentric which is rotated by means of a suitable actuator.
  • the main shaft is placed in an eccentric manner with respect to the rotation axis of the eccentric shaft, wherein during the rotation of the eccentric shaft, the position of the main shaft with respect to the frame of the crusher is changed.
  • the distance between the different points of the outer and inner crushing blades varies during the rotation of the eccentric shaft, or the cycle.
  • the movement of the main shaft is greater in the lower part than in the upper part. This is because the axial line of the main shaft and the rotation axis line of the eccentric shaft are not parallel, but the lines intersect at a so-called pivot point.
  • the pivot point is typically above the crushing blades.
  • the main shaft is supported to the frame by means of a thrust bearing above the outer crushing blade.
  • the thrust bearing is substantially at the pivot point, at which point the horizontal movement of the main shaft reaches its minimum.
  • the properties of the crusher are changed, among other things, by changing the distance between the outer and the inner crushing blades. This change in the so-called setting is implemented by changing the position of the inner crushing blade. Because the inner crushing blade is connected to the main shaft, a typical way is to move the main shaft in the height direction.
  • a adjusting piston is used for this purpose.
  • the adjusting piston is located below the gyratory shaft.
  • a adjusting oil sump is placed in the space limited by the lower part of the frame and the adjusting piston.
  • the quantity of the adjusting oil in the adjusting oil sump can be util- ized to lift up and lower the main shaft.
  • Bearings are found between the adjusting piston and the main shaft. By the effect of the adjustment, the bearings slide in the vertical direction with respect to the frame, simultaneously changing the eccentricity between the adjusting piston of the bearings and the parts on the side of the main shaft .
  • the known bearings comprise an intermediate plate, wherein two bearing surfaces are formed. In many cases, the intermediate plate tends to engage the bearing of the gyratory shaft, and when the shaft is lifted away, the intermediate plate may fall onto the lower bearing and damage it.
  • the gyratory crusher according to the invention is primarily characterized in what will be presented in the independent claim 1.
  • the crushing plant according to the invention is primarily characterized in what will be presented in the independent claim 6.
  • the method according to the invention is, in turn, primarily characterized in what will be presented in the independent claim 11.
  • the other, dependent claims will present some preferred embodiments of the invention.
  • the invention is based on the idea that the adjusting piston is formed inside the main shaft.
  • the crusher according to the invention comprises at least a frame and a main shaft, as well as at least a first crushing blade fitted in the frame and a second crushing blade fitted on the main shaft. Furthermore, the crusher comprises a first bearing unit fitted in the frame for supporting the main shaft above the second crushing blade, and a adjusting piston for changing the setting of the crusher (the mutual position between the first crushing blade and the second crushing blade). The adjusting piston is fitted at least partly inside the main shaft.
  • the setting of the crusher is changed at least partly by means of a adjusting piston fitted inside the main shaft, by changing the volume of the space between the adjusting piston and the main shaft.
  • the crusher also comprises a adjusting oil sump fitted in the space limited by the main shaft and the adjusting piston.
  • the crusher also comprises a second bearing unit fitted to support the adjusting piston to the frame at the lower part of the adjusting piston.
  • the second bearing unit comprises a first part with a first slide surface and a second part with a second slide surface.
  • the first part is fitted in the frame and the second part is fitted in the adjusting piston, and the first slide surface is against the second slide surface.
  • the second slide surface is fitted above the first slide surface, and the second slide surface is fitted to move along a rotationally symmetrical path in the horizontal direction with respect to the first slide surface.
  • a significant advantage provided by one embodiment lies in that the thrust bearing does not move in the axial direction when the setting is adjusted.
  • a significant advantage provided by one embodiment lies in that no intermediate plate is needed in the bearing. With the omission of the intermediate plate, the damaging risk of the falling intermediate plate is also eliminated.
  • the bearing preferably comprises only one friction surface, wherein the lubrication of the bearing is easier to implement.
  • An advantage offered by one embodiment lies in that the crusher can be made lower.
  • One embodiment makes it possible to reduce the diameter of the toothed rim.
  • the lower part of the crusher becomes lighter in weight, wherein the total mass of the crusher is reduced, which, in turn, has an advantageous effect in movable crushing plants.
  • the number of components is reduced with respect to the solutions of prior art.
  • the bearing unit can be implemented with fewer components.
  • One embodiment makes it possible to improve the function of an overload valve, because the valve can be placed in connection with the piston. This has an advantageous effect on, for example, the response rate of the overload protection system.
  • Fig. 1 shows an advantageous embodiment
  • Fig. 1 b shows a detail in an advantageous embodiment
  • Fig. 2 shows a crusher in the upper position
  • Fig. 3 shows a crusher in the lower position
  • Fig. 4 shows a movable crushing plant.
  • setting of the crusher refers to the distance between the outer and inner crushing blades of the crusher during the cycle of the crusher.
  • a millimetre (mm) can be used as the unit of measurement.
  • FIG. 1 a shows a very advantageous assembly according to the basic idea of the present invention.
  • the apparatus according to the example comprises at least a frame 1 and a main shaft 2.
  • the crusher comprises a first crushing blade 3 fitted in the frame 1 , and a second crushing blade 4 fitted on the main shaft 2.
  • the inner conical crushing blade, i.e. the second crushing blade 4 is movable on the main shaft 2 with respect to the outer crushing blade, i.e. the first crushing blade 3, in such a way that a forced stroke is produced in the crushing chamber between the crushing blades.
  • the movement of the main shaft 2 and thereby also of the second crushing blade 4 is greater in the lower part than in the upper part.
  • the movement of the main shaft 2 is produced by means of an eccentric 5.
  • the eccentric 3, to which the main shaft 2 is fitted causes a forced swinging movement of the second crushing blade 4, which reduces and increases the gap between the first crushing blade 3 and the second crushing blade 4, effecting the crushing of the material to be crushed.
  • the rotation force is transmitted to the eccentric 3 from a suitable actuator by means of a drive shaft 6.
  • the main shaft 2 is supported to the frame 1 by means of a first bearing unit 7 above the second crushing blade 4.
  • the point of intersection between the central line of the main shaft 2 and the central line of the first crushing blade 3, called the pivot point P, is placed above the second crushing blade 4, preferably at the first bearing unit 7.
  • the crusher comprises a adjusting piston 8 for changing the mutual position between the first crushing blade 3 and the second crushing blade 4, i.e. for changing the setting of the crusher.
  • the adjusting piston 8 is fitted at least partly inside the main shaft 2.
  • the crusher also comprises a adjusting oil sump 9 and a second bearing unit 10.
  • the adjusting oil sump 9 is fitted in the space limited by the main shaft 2 and the adjusting piston 8.
  • the adjusting oil is guided via a suitable inlet 11 into and from the adjusting oil sump 9.
  • the supply is effected via an inlet 11 on the axial line.
  • an anti-overload device such as an overload valve.
  • the overload valve allows adjusting oil to exit the adjusting oil sump 9 in an overload situation.
  • An overload situation may occur, for example, when such material that cannot be crushed by the crushing blades 3, 4 enters the crushing chamber.
  • the situation typically occurs when there are metal pieces among rock to be crushed.
  • the second bearing unit 10 is provided to support the adjusting piston 8 to the frame 1 at the lower part of the adjusting piston.
  • the second bearing unit 10 is a thrust bearing.
  • the thrust bearing 10 placed between the adjusting piston 8 and the frame 1 does not move in the axial direction when the setting is adjusted.
  • the thrust bearing 10 allows the movement of the adjusting piston 8 in the radial direction.
  • the lower part 10a of the second bearing unit 10 (the first part of the bearing unit) is connected to the frame 1 of the crusher in a substantially stationary manner.
  • the upper part 10b of the second bearing unit 10 (the second part of the bearing unit), in turn, is connected to the adjusting piston 8, and the upper part 10b and the lower part 10a of the bearing unit may move in relation to each other in the horizontal direction.
  • the upper part 10b and the lower part 10a of the second bearing unit 10 comprise slide surfaces which are arranged to face each other.
  • the second bearing unit 10 makes it possible that the adjusting piston 8 and the main shaft 2 connected to it (as well as the upper part 10b of the bearing unit) may move along a rotational path produced by the eccentric 5.
  • a significant advantage provided by one embodiment lies in that no intermediate plate will be needed between the upper part 10b and the lower part 10a of the bearing unit in the second bearing unit 10. With the omission of the intermediate plate, also the damaging risk of the falling intermediate plate is eliminated.
  • the second bearing unit 10 preferably comprises only one friction surface (between the slide surface of the upper part 10b and the slide surface of the lower part 10a of the bearing unit), wherein the lubrication of the bearing is easier to implement.
  • a lubrication inlet 12 is provided, from which the suitable lubricant is supplied to the bearing.
  • Figure 1b shows a detail in an advantageous embodiment.
  • the apparatus comprises at least a frame 1 , a main shaft 2, a adjusting piston 8, a adjusting oil sump 9, and a second bearing unit 10.
  • the upper part 10b and the lower part 10a of the second bearing unit 10 comprise slide surfaces which are arranged to face each other.
  • a first ring seal 13 is provided between the upper part 10b and the lower part 10a of the bearing unit.
  • the first ring seal 13 is fitted in a groove formed on the slide surface of the lower part 10a of the bearing unit.
  • One function of the first ring seal 13 is to enable the supply of adjusting oil or another corresponding substance from the adjusting oil inlet 11 through the bearing unit 10 into the adjusting oil sump 9.
  • the example comprises a second ring seal 14.
  • the second ring seal 14 is fitted between the adjusting piston 8 and the main shaft 2.
  • the adjusting piston 8 comprises a horizontal groove that encircles the adjusting piston and in which the second ring seal 14 is fitted.
  • One func- tion of the second ring seal 14 is to seal the gap between the main shaft 2 and the adjusting piston 8 and thereby also to seal the adjusting oil sump 9.
  • the first ring seal 13 and the second ring seal 14 can be made of metal, such as, for example, bronze or another corresponding material.
  • metal such as, for example, bronze or another corresponding material.
  • Polyurethane (PUR), carbon fibre PTFE or bronze PTFE are also suitable materials for the first ring seal 13 and the second ring seal 14.
  • Figures 2 and 3 show principle views of the crusher in two different positions.
  • the Figs. 2 and 3 do not show the frame 1 of the crusher, to illustrate the different positions more clearly.
  • the second crushing blade 4 has been driven to the upper position, wherein the setting of the crusher is small.
  • the volume of the adjusting oil space 9 is large.
  • Fig. 3 the adjusting piston 8 is in the lower position, wherein the setting of the crusher is large. In this operating position, the volume of the adjusting oil space 9, in turn, is small. A similar operating position may result from an overload situation. In an overload situation, a sufficient quantity of adjusting oil is released from the adjusting oil sump 9 to unload the overload situation.
  • the different operating positions between the Figs. 2 and 3 may be arrived at by providing the adjusting oil sump 9 with a suitable quantity of oil.
  • a suitable quantity of oil To reduce the setting, more oil is supplied.
  • the quantity of oil is reduced.
  • the adjustment can be made in various ways.
  • the setting of the crusher is moni- tored by suitable measuring devices. The measured value is compared with the set values, after which, if necessary, the setting is changed by adjusting the volume of the adjusting oil sump 9 by means of the quantity of the adjusting oil, and thereby the mutual position between the adjusting piston 8 and the main shaft 2.
  • the placement of the adjusting piston 8 inside the main shaft 2 makes it possible to make the crusher lower than in a solution where the adjusting piston is outside the main shaft.
  • the structure also makes it possible to reduce the diameter of the toothed rim, because the internal adjusting piston 8 does not substantially increase the width of the structure.
  • FIG. 4 shows a crushing plant 100 which is suitable for the processing of mineral material, such as for the crushing of rock or the recirculation of construction material, such as for the processing of reinforced concrete.
  • the crushing plant comprises a feeder 110 for feeding material to be crushed further to a screen 120, and to a crusher 130.
  • the crushing plant further comprises a side conveyor 140 and a main conveyor 150 as well as a power source 160 for driving the actuators, and a caterpillar drive 170 for moving the crushing plant.
  • the crushing plant is a movable plant with a crusher mounted on a caterpillar drive.
  • the crushing plant can also be moved by other means, such as wheels or legs, or it may be stationary.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)

Abstract

L'invention concerne un broyeur giratoire comprenant au moins un cadre (1) et un arbre principal (2), ainsi qu'au moins une première lame de broyage (3) adaptée dans le cadre, et une seconde lame de broyage (4) adaptée sur l'arbre principal. Le broyeur comprend également une première unité de palier (7) adaptée pour supporter l'arbre principal (2) sur le cadre (1) au-dessus de la seconde lame de broyage (4), et un piston d'ajustement (8) pour changer le réglage du broyeur. Le piston d'ajustement (8) est adapté au moins partiellement à l'intérieur de l'arbre principal (2). L'invention concerne également une installation de broyage et un procédé pour ajuster le réglage d'un broyeur giratoire.
PCT/FI2008/050071 2007-11-20 2008-02-19 Broyeur giratoire et procédé d'ajustement du réglage d'un broyeur giratoire WO2009066001A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FIPCT/FI2007/050622 2007-11-20
PCT/FI2007/050622 WO2009065995A1 (fr) 2007-11-20 2007-11-20 Broyeur

Publications (1)

Publication Number Publication Date
WO2009066001A1 true WO2009066001A1 (fr) 2009-05-28

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ID=39514813

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/FI2007/050622 WO2009065995A1 (fr) 2007-11-20 2007-11-20 Broyeur
PCT/FI2008/050071 WO2009066001A1 (fr) 2007-11-20 2008-02-19 Broyeur giratoire et procédé d'ajustement du réglage d'un broyeur giratoire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/FI2007/050622 WO2009065995A1 (fr) 2007-11-20 2007-11-20 Broyeur

Country Status (1)

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WO (2) WO2009065995A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140307A1 (fr) * 2011-04-13 2012-10-18 Metso Minerals, Inc. Concasseur à cône et installation de traitement pour de la matière minérale
CN103608113A (zh) * 2011-06-07 2014-02-26 山特维克知识产权股份有限公司 回转破碎机的框架
WO2016127891A1 (fr) * 2015-02-09 2016-08-18 陈冠强 Structure de broyeur à cône
CN109663629A (zh) * 2018-12-18 2019-04-23 北京凯特破碎机有限公司 惯性圆锥破碎机
RU2704985C2 (ru) * 2015-09-14 2019-11-01 Метсо Минералз, Инк. Система смазки

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012141560A1 (fr) * 2011-04-14 2012-10-18 Ha Yong-Gan Broyeur conique
US9050601B2 (en) 2011-04-14 2015-06-09 Yong-Gan Ha Cone-shaped crusher
KR101372920B1 (ko) * 2012-03-13 2014-03-13 하용간 콘형 크러셔
KR101191267B1 (ko) * 2011-04-14 2012-10-16 하용간 콘형 크러셔
JP6103458B2 (ja) 2013-03-08 2017-03-29 ハ， ヨンガンＨＡ， Ｙｏｎｇ−Ｇａｎ コーン型クラッシャー

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079882A (en) * 1931-09-30 1937-05-11 Traylor Engineering & Mfg Comp Crusher and pressure-exerting machinery
US2908448A (en) * 1957-01-24 1959-10-13 Lester R Macleod Gyratory crusher
US3666188A (en) * 1969-08-19 1972-05-30 Hewitt Robins Inc Gyratory crusher
US5934583A (en) * 1998-01-26 1999-08-10 Jean; Cheng-Shu Bearing block mounting arrangement of a cone crusher
EP1634649A1 (fr) * 2000-06-22 2006-03-15 Komatsu Ltd. Broyeur mobile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384312A (en) * 1966-07-25 1968-05-21 Allis Chalmers Mfg Co Spiderless gyratory crusher having frictionless bearings
FI117044B (fi) * 2004-04-26 2006-05-31 Metso Minerals Tampere Oy Hydraulisesti säädettävä kartiomurskain

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079882A (en) * 1931-09-30 1937-05-11 Traylor Engineering & Mfg Comp Crusher and pressure-exerting machinery
US2908448A (en) * 1957-01-24 1959-10-13 Lester R Macleod Gyratory crusher
US3666188A (en) * 1969-08-19 1972-05-30 Hewitt Robins Inc Gyratory crusher
US5934583A (en) * 1998-01-26 1999-08-10 Jean; Cheng-Shu Bearing block mounting arrangement of a cone crusher
EP1634649A1 (fr) * 2000-06-22 2006-03-15 Komatsu Ltd. Broyeur mobile

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012140307A1 (fr) * 2011-04-13 2012-10-18 Metso Minerals, Inc. Concasseur à cône et installation de traitement pour de la matière minérale
US9238228B2 (en) 2011-04-13 2016-01-19 Metso Minerals, Inc. Cone crusher and processing plant for mineral material
CN103608113A (zh) * 2011-06-07 2014-02-26 山特维克知识产权股份有限公司 回转破碎机的框架
WO2016127891A1 (fr) * 2015-02-09 2016-08-18 陈冠强 Structure de broyeur à cône
RU2704985C2 (ru) * 2015-09-14 2019-11-01 Метсо Минералз, Инк. Система смазки
US10900486B2 (en) 2015-09-14 2021-01-26 Metso Minerals, Inc. Lubrication system
CN109663629A (zh) * 2018-12-18 2019-04-23 北京凯特破碎机有限公司 惯性圆锥破碎机

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