EP0256147A1 - Broyeur à disques - Google Patents

Broyeur à disques Download PDF

Info

Publication number
EP0256147A1
EP0256147A1 EP86111171A EP86111171A EP0256147A1 EP 0256147 A1 EP0256147 A1 EP 0256147A1 EP 86111171 A EP86111171 A EP 86111171A EP 86111171 A EP86111171 A EP 86111171A EP 0256147 A1 EP0256147 A1 EP 0256147A1
Authority
EP
European Patent Office
Prior art keywords
crushing
disc
bearing housing
crusher according
flange
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
EP86111171A
Other languages
German (de)
English (en)
Other versions
EP0256147B1 (fr
Inventor
Ivan Vassilev Dipl.-Ing. Genev
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.)
N I I PO TSCHERNA METALURGIA
Original Assignee
N I I PO TSCHERNA METALURGIA
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
Priority to DE19863623751 priority Critical patent/DE3623751A1/de
Application filed by N I I PO TSCHERNA METALURGIA filed Critical N I I PO TSCHERNA METALURGIA
Priority to AT86111171T priority patent/ATE48767T1/de
Priority to EP86111171A priority patent/EP0256147B1/fr
Publication of EP0256147A1 publication Critical patent/EP0256147A1/fr
Application granted granted Critical
Publication of EP0256147B1 publication Critical patent/EP0256147B1/fr
Expired legal-status Critical Current

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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
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/005—Crushers with non-coaxial toothed discs with intersecting axes

Definitions

  • the invention relates to a disc crusher with a crusher housing and a crushing disc rotatably mounted therein, over which a crushing cone is rotatably mounted in an inclined manner in a bearing housing to form a radial crushing gap, the bearing housing with the crushing cone being guided axially displaceably and axially adjustable supporting surfaces being provided against which the bearing housing is braced by means of springs supported on spring stops.
  • Such a disk crusher known from DE-OS 26 06 485 has a horizontally lying, flat crushing disk with a vertical axis of rotation within a crusher housing. Above this crushing disc, a crushing cone is mounted at an incline such that there is a radially and horizontally extending, linear crushing gap with a constant height on one side of the crushing disc. The axes of rotation of the crushing disc and crushing cone intersect on the surface of the crushing disc in the middle. Both the crushing disc and the crushing cone are driven by electric motors, in the same direction and at the same speed.
  • the material to be crushed is applied via an almost vertical inlet channel on the side of the crushing disc opposite the crushing gap and then transported from the crushing disc into the crushing gap on the other side.
  • the crushing then takes place in the crushing gap.
  • a rake located in front of the inlet pipe in the direction of rotation, the broken material is then discharged outwards from the breaking disk into an outlet pipe.
  • the material to be crushed therefore only passes the crushing gap once.
  • the crushing cone is stored in a bearing housing.
  • the bearing housing rests by means of an outer circumferential flange on support surfaces in the form of support nuts which are screwed onto stud bolts projecting outwards from the crusher housing and fixed thereon.
  • the stud bolts run parallel to the axis of rotation of the crushing cone and penetrate the flange.
  • Spring stops are provided at their free ends, helical springs under pressure being provided between these spring stops and the flange of the bearing housing. In this way, the flange and thus the bearing housing and the crushing cone are pressed down towards the crushing disc, the respective position of the support nuts determining the clear height of the crushing gap.
  • the invention is therefore based on the object of improving the disc crusher of the type mentioned at the outset with regard to the suspension of the crushing cone in such a way that even fractions are obtained at different crushing gap heights.
  • a flange of the bearing housing by stud bolts, which run freely through holes in the flange and through the springs, and via an upper and lower flange body with the upper housing part that the upper and have lower flange body opposing external threads and are surrounded on the outside by an adjusting nut, which has threads on the inner surface which correspond to the threads of the upper and lower flange body, that the adjusting nut has a ring gear which is connected to an adjusting gear and a fixing gear, and that on a key is attached to the lower end of the bearing housing and sits in a groove on the inner surface of the lower flange body.
  • the spring stops are rigidly connected to the support surface (s) - and no longer to the crusher housing itself. Due to this design, the distance between the support surface (s) and the spring stops no longer changes when the support surface (s) is adjusted to change the crushing gap, so that the spring preload with which the bearing housing is pressed against the support surface (s) is independent of the height of the crushing gap always remains constant. This has a correspondingly positive impact on the crushing result.
  • the spring stops are fastened to stud bolts which sit in the support surface.
  • the springs are expediently designed as helical or cup springs surrounding the stud bolts.
  • the spring stops should be axially adjustable.
  • the support surface (s) is or are expediently screwed onto stud bolts provided with adjusting threads. They can then be designed as support nuts, for example, which are countered with another nut on the other side.
  • the support surface have a neck portion surrounding the bearing housing and provided with a thread, a nut being screwed onto the thread, said nut being rotatably engaged with a stationary housing part.
  • the height of the support surface is adjusted by turning the nut surrounding the bearing housing, the bearing housing being well guided through the neck section.
  • the adjusting nut should advantageously engage the stationary housing part via a counter thread.
  • an anti-rotation device is also expediently provided, for example in the form of a feather key or the like.
  • the tip of the crushing cone and the center of the crushing disc are connected on the one hand by a centering body and on the other hand by a bore which bears against the inside thereof.
  • a centering body is designed as a centering cone arranged in the crushing disc, which lies in the cylindrical bore in the crushing cone with line contact.
  • the centering body is designed as a centering cylinder arranged in the crushing cone, which lies in the conically widening bore in the crushing disc with line contact.
  • the bearing housing is displaceable transversely to the axis of rotation of the crushing cone in a plane formed by the crushing gap and the axis of rotation.
  • the crushing cone can be offset in the plane of the crushing gap with respect to the crushing disc in order to be able to compensate for uneven wear on the jacket of the crushing cone.
  • the angle of inclination of the working surface of the crushing disc can be 0 ° to 90 °.
  • the disc crusher 1 shown in FIGS. 1 and 2 has a crusher housing 2 which consists of an upper housing part 3, a central housing part 4 and a lower housing part 5. The latter rests on a foot part 6.
  • a flat crushing disk 7 is arranged within the crusher housing 2 and rests on an axial bearing 8 which is surrounded on the outside by a seal 9.
  • a bearing shaft 10 is fastened to the underside of the crushing disk 7 and is guided radially in a downward extension 11 of the lower housing part 5 by means of two ball bearings 12, 13.
  • the extension 11 is closed at the top and bottom by two lids 14, 15.
  • At the lower end of the bearing shaft 10 there is a belt pulley 16, via which the breaker pulley 7 can be rotated by means of a V-belt drive (not shown here). The drive takes place via an electric motor that cannot be seen.
  • a crushing cone 17 is arranged above the crushing disc 7, the back of which is connected to a bearing shaft 18.
  • the axis of rotation of the bearing shaft 18 and the radial surface line of the crushing cone 17 enclose an acute angle ⁇ , the bearing shaft 18 being inclined such that the surface line of the crushing cone 17 running to the left in the plane of the drawing runs horizontally and thus parallel to the surface of the crushing disk 7.
  • the bearing shaft 18 of the crushing cone 17 is supported by a total of three ball bearings 20, 21, 22 in a bearing housing 23, namely by an upper ball bearing 20, which absorbs downward axial forces and radial forces, one designed as an axial bearing for receiving upward axial forces Ball bearing 21 and a lower ball bearing 22 for absorbing radial forces.
  • the interior surrounded by the bearing housing 23 is essentially closed off by two covers 24, 25.
  • a pulley 26 is also attached, which is driven by an electric motor 28 via a V-belt drive 27.
  • a cover 29 supports this part of the disc breaker 1. With the help of this electric motor 28, the crushing cone 17 is set in rotation.
  • the electric motor 28 is screwed via a support 30 to a flange 31 which is integrally formed on the outside of the bearing housing 23.
  • FIG. 1 The support of the flange 31 and thus of the bearing housing 23 on the upper housing part 3 is shown in FIG. 1 in two alternatives, one alternative to the left of the axis of rotation of the bearing shaft 18 and the other alternative to the right thereof.
  • the bearing housing 23 surrounds two flange bodies 32, 33 arranged one above the other.
  • the lower flange body 33 is fixedly connected to the housing top part 3 by means of three screws 34 distributed over the circumference.
  • a key 35 ensures thereby for a non-rotatable but axially loose connection between the bearing housing 23 and the lower flange body 33.
  • the upper flange body 32 is arranged at a distance from the lower one.
  • Both flange bodies 32, 33 have threads 36, 37 running in opposite directions on their lateral surfaces, over which an adjusting nut 38 which surrounds the two threads 36, 37 and surrounds the bearing housing 23 extends.
  • On the outside of a gear rim 39 is rotatably fixed, via which the adjusting nut 38 can be rotated. Because the two threads 36, 37 run in opposite directions, the distance between the two flange bodies 32, 33 can be adjusted in a simple manner in the axial direction.
  • the crushing cone 17 can thus also be moved back and forth in the axial direction via the flange 31 and the bearing housing 23, with the result that the height of the crushing gap 19 changes accordingly.
  • the second alternative shown on the right-hand side has a one-piece flange part 40 with two flange sections 41, 42.
  • the lower flange section 42 is fastened to the upper housing part 3 in a height-adjustable manner via a plurality of stud bolts 43 - only one of which can be seen here.
  • each stud bolt 43 is screwed into the upper housing part 3 and fixed by a lock nut 44.
  • An adjusting element 45 is screwed onto the stud bolt 43, on which the lower flange section 42 is supported.
  • the flange part 40 can be fixed in the respectively set height by a further lock nut 46 resting on the upper side of the flange section 42.
  • the lock nut 46 is loosened, so that the adjusting element 45 is then rotated in one direction or the other can. The same applies to the other, not visible stud bolts.
  • the flange 31 is pressed with its underside against the upper flange body 31 (left alternative) or the upper flange section 41 of the flange part 40 (right alternative) by means of eight helical springs 47, 48 distributed over the circumference - only two can be seen in FIG. 1 .
  • the coil springs 47, 48 are supported via spring stops 49, 50 on stud bolts 51, 52 which pass through the flange 30 and are screwed and fixed in the upper flange body 31 or the upper flange section 41. In this way, the spring preload of the coil springs 47, 48 remains unchanged regardless of the adjustment of the crushing cone 17 in the axial direction - be it by means of the adjusting nut 38 or by means of the adjusting elements 45.
  • a centering cone 53 is arranged in the center of the crushing disk 7, as the partial sectional illustration in FIG. 1 shows, which consists of two cylindrical parts located within the crushing disk 7 and a conically tapering part projecting beyond the surface of the crushing disk 7.
  • the centering cone 53 engages in a coaxial bore 54 in the tip of the crushing cone 17 such that a surface line of the centering cone 53 has line contact with the inner surface of the bore 54. In this way, the crushing cone 17 can be supported on the centering cone 53, so that radial evasive movements due to the load in the crushing gap 19 are avoided.
  • FIG. 4 shows an alternative to the embodiment shown in FIG. 1 for centering in an off position Section shown.
  • a centering sleeve 55 is screwed into the crushing disk 7, which has a conically widening inner wall 57 at its upper end.
  • a centering cylinder 58 bears against this inner wall 57 and is displaceably guided in a coaxial bore 59 in the crushing cone 17.
  • the lower end of the centering cylinder 58 is provided with a chamfer 60, the angle of which is dimensioned such that the chamfer 60 lies flat against the conical inner wall 57. In this way, the crushing cone 17 is supported in both radial directions.
  • FIG. 2 shows in the side view that the disc crusher 1 shown in FIG. 1 additionally sits with its foot part 6 on a wedge-shaped seat 61 and this on a horizontal base frame 62.
  • the arrangement on the wedge-shaped seat 61 has the result that the entire disc crusher 1 is inclined at an angle ⁇ of 0 to 90 ° with respect to the horizontal.
  • the crushing disk 7 thus also has a corresponding inclination, as can be seen from the broken line.
  • the outlet 64 is located just behind the crushing gap 19, approximately at the lowest point of the crushing disk 7. Due to the inclination of the crushing disk 7 and the centrifugal forces, the broken material is here directly into the Outlet 64 spun off without the need for an additional rake, which is subject to high wear, as in the case of the known disk breakers.
  • Figure 3 shows a cross section through the bearing housing 23. It can be seen that the flange body 33 has an approximately triangular shape and is fastened by three screws 34 to the upper housing part 3, which is not visible here. In this case, the first alternative shown on the left in FIG. 1 is shown throughout.
  • the lower flange body 33 has for the passage of the screws 34 in each case elongated holes 65, 66, 67, which in the direction of the crushing gap 19, i. H. extend parallel to the plane of the drawing of Figure 1.
  • elongated holes 65, 66, 67 which in the direction of the crushing gap 19, i. H. extend parallel to the plane of the drawing of Figure 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
EP86111171A 1985-07-19 1986-08-12 Broyeur à disques Expired EP0256147B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19863623751 DE3623751A1 (de) 1985-07-19 1986-07-14 Scheibenbrecher
AT86111171T ATE48767T1 (de) 1986-08-12 1986-08-12 Scheibenbrecher.
EP86111171A EP0256147B1 (fr) 1986-08-12 1986-08-12 Broyeur à disques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86111171A EP0256147B1 (fr) 1986-08-12 1986-08-12 Broyeur à disques

Publications (2)

Publication Number Publication Date
EP0256147A1 true EP0256147A1 (fr) 1988-02-24
EP0256147B1 EP0256147B1 (fr) 1989-12-20

Family

ID=8195334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111171A Expired EP0256147B1 (fr) 1985-07-19 1986-08-12 Broyeur à disques

Country Status (2)

Country Link
EP (1) EP0256147B1 (fr)
AT (1) ATE48767T1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039845A1 (fr) * 2001-11-07 2003-05-15 Elektropohony Spol. S.R.O. Dispositif de reduction du volume d'objets creux
JP2004318064A (ja) * 2002-11-08 2004-11-11 Canon Inc トナー粒子の製造方法
JP2004326030A (ja) * 2003-04-28 2004-11-18 Canon Inc トナー粒子の製造方法及びトナーの製造方法
US7131604B2 (en) * 2002-07-16 2006-11-07 M. Technique Company, Ltd. Processing apparatus and method for fluid, and deaerator therewith
CN101612533B (zh) * 2002-07-16 2013-01-23 M技术株式会社 流动体的处理装置、流动体的处理方法及带有微细化装置的脱气机
CN108772137A (zh) * 2018-06-27 2018-11-09 衡东县鸿达湘莲种植专业合作社 一种莲子研磨装置
CN111451438A (zh) * 2020-04-30 2020-07-28 榆林学院 一种用于铸造机械的混砂装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199113A (en) * 1975-02-26 1980-04-22 Dso "Cherna Metalurgia" Disc-type apparatus for crushing hard materials

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199113A (en) * 1975-02-26 1980-04-22 Dso "Cherna Metalurgia" Disc-type apparatus for crushing hard materials

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003039845A1 (fr) * 2001-11-07 2003-05-15 Elektropohony Spol. S.R.O. Dispositif de reduction du volume d'objets creux
US7131604B2 (en) * 2002-07-16 2006-11-07 M. Technique Company, Ltd. Processing apparatus and method for fluid, and deaerator therewith
US7278592B2 (en) 2002-07-16 2007-10-09 M Technique Co., Ltd. Processing apparatus and method for fluid, and deaerator therewith
CN1483515B (zh) * 2002-07-16 2010-07-28 M技术株式会社 流动体的处理装置、流动体的处理方法及带有微细化装置的脱气机
CN101612533B (zh) * 2002-07-16 2013-01-23 M技术株式会社 流动体的处理装置、流动体的处理方法及带有微细化装置的脱气机
JP2004318064A (ja) * 2002-11-08 2004-11-11 Canon Inc トナー粒子の製造方法
JP2004326030A (ja) * 2003-04-28 2004-11-18 Canon Inc トナー粒子の製造方法及びトナーの製造方法
CN108772137A (zh) * 2018-06-27 2018-11-09 衡东县鸿达湘莲种植专业合作社 一种莲子研磨装置
CN111451438A (zh) * 2020-04-30 2020-07-28 榆林学院 一种用于铸造机械的混砂装置

Also Published As

Publication number Publication date
ATE48767T1 (de) 1990-01-15
EP0256147B1 (fr) 1989-12-20

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