EP0256147B1 - Broyeur à disques - Google Patents

Broyeur à disques Download PDF

Info

Publication number
EP0256147B1
EP0256147B1 EP86111171A EP86111171A EP0256147B1 EP 0256147 B1 EP0256147 B1 EP 0256147B1 EP 86111171 A EP86111171 A EP 86111171A EP 86111171 A EP86111171 A EP 86111171A EP 0256147 B1 EP0256147 B1 EP 0256147B1
Authority
EP
European Patent Office
Prior art keywords
crushing
disc
bearing housing
flange
housing
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
EP86111171A
Other languages
German (de)
English (en)
Other versions
EP0256147A1 (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, in which a crushing disc connected to a rotary drive is mounted and in which to form a radial crushing gap with the crushing disc, a crushing cone connected to a rotary drive is arranged inclined, which in a with respect to the crusher housing for changing the crushing gap adjustable bearing housing is mounted, and with a flange attached to the bearing housing, displaceable on stud bolts, which extend through bores in the flange and to which springs are assigned, are supported on the flange and on spring stops axially adjustably supported by the stud bolts.
  • Such a disk crusher known from DE-A 2 606 485 or US-A 4 199 133 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 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.
  • an upper flange body which surrounds the bearing housing and to which the stud bolts are fixed, against which the flange of the bearing housing is pressed by the springs and which is provided with an external thread by one at a distance from the upper flange body arranged lower, enclosing the bearing housing flange body, which is fixed to a housing upper part of the crusher housing, is rotatably but axially displaceably connected via a feather key to the bearing housing and is provided with an external thread which is opposite to the external thread of the upper flange body and by a Adjusting nut, which is in threaded engagement with the external threads of the upper and lower flange body and carries a spider on the outside in a rotationally fixed manner for engagement with an adjusting and fixing gear.
  • the biasing force of the springs and thus the resistance force that the crushing cone exerts against an increase in the crushing gap during the crushing process can be adjusted independently of the size of the crushing gap, the crushing gap being able to be adjusted without changing the biasing force of the springs. Due to these two independent setting options, the desired crushing result can be achieved.
  • the studs enclosing helical springs or disc springs are advantageously suitable as springs.
  • hydropneumatic springs are also expedient, the degree of filling of which with hydraulic oil can be changed quickly and easily in a simple manner.
  • 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.
  • the centering body is designed as a centering cone arranged in the crushing disk, 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. In both cases, the crushing cone is now supported on both sides by the bearing housing and on the other hand by the centering body, so that evasion of the crushing cone is no longer possible.
  • 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 axes of rotation. Due to this design, the crushing cone can be offset in the plane of the crushing gap with respect to the crushing disc in order to compensate for uneven wear on the surface 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.
  • the bearing housing 23 is surrounded by two flange bodies 32, 33 arranged one above the other.
  • the lower flange body 33 is fixedly connected to the upper housing part 3 by means of three screws 34 distributed over the circumference.
  • a feather key 35 ensures 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 on their lateral surfaces opposing external threads 36, 37, into which an adjusting nut 38 engages with their internal thread, on the outside of which a sprocket 39 is fastened in a rotationally fixed manner, via which the adjusting nut 38 can be rotated. Due to the opposite direction of the two external threads 36, 37, 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 flange 31 is pressed with its underside against the upper flange body 31 by means of eight helical springs 48 distributed over the circumference - only two can be seen in FIG. 1.
  • the coil springs 48 are supported by spring stops 50 on stud bolts 51 which pass through the flange 30 and are screwed and fixed in the upper flange body 31. In this way, the spring preload of the coil springs 48 remains unchanged regardless of the adjustment of the crushing cone 17 in the axial direction by means of the adjusting nut 38.
  • 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 inside the crushing disk 7 and a conically tapering surface the crushing disc 7 protruding part.
  • the centering cone 53 engages 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 a detail.
  • 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 a with respect to the horizontal.
  • the crushing disk 7 thus also has a corresponding inclination, as can be seen from the broken line.
  • An 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 thrown directly into the outlet 64 here without the need for an additional calculation which is subject to high wear.
  • FIG. 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.
  • the lower flange body 33 has slots 65, 66, 67 for the passage of the screws 34, which extend in the direction of the crushing gap 19, i.e. extend parallel to the plane of the drawing of Figure 1.
  • the bearing housing 23 with the crushing cone 17 in parallel in the direction of the extent of the crushing gap 19 in order to be able to compensate for uneven abrasion on the crushing cone 17.

Landscapes

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

Claims (7)

1. Broyeur à disque comportant un carter de broyeur (2) dans lequel est monté un disque de broyage (7) relié à un dispositif d'entraînement en rotation (16) et dans lequel, pour la formation d'une fente radiale de broyage (19) avec le disque de broyage (7), est disposé de manière inclinée, un cône de broyage (17) relié à un dispositif d'entraînement en rotation (26, 27, 28) et monté dans un logement de palier (23) déplaçable par rapport au carter de broyeur (2) afin de modifier la fente de broyage (19), ainsi qu'une bride (31) montée sur le logement de palier (23) et déplaçable sur des boulons (51) qui traversent des perçages ménagés dans la bride (31) et auxquels sont associés des ressorts (48) prenant appui, sous précontrainte, sur la bride (31) et sur des butées (50) portées par les boulons (51), de manière à être déplaçables axialement, caractérisé
- par un corps supérieur de bride (32) entourant le logement de palier (23), comportant un filetage extérieur (37) et sur lequel les boulons (51) sont fixés et contre lequel la bride (31) du logement de palier (23) est repoussée par les ressorts (48),
- par un corps inférieur de bride (33) situé à distance du corps supérieur de bride (32), entourant le logement de palier (23) et fixé (34) sur une partie supérieure (3) du carter de broyeur (2), relié par l'intermédiaire d'une clavette d'ajustage (35) au logement de palier (23) de manière à en être solidaire en rotation, mais à pouvoir se déplacer axialement, et comportant un filetage extérieur (36) réalisé dans le sens inverse du filetage extérieur (37) du corps supérieur de bride (32), et
- par un écrou de réglage (38) en prise avec les filetages extérieurs (37, 36) des corps supérieur et inférieur de bride (32, 33) et portant sur sa face extérieure une couronne dentée (39) qui en est solidaire en rotation et est destinée à être en prise avec une transmission de réglage et de blocage.
2. Broyeur à disque selon la revendication 1, caractérisé en ce que les ressorts sont des ressorts Belleville ou des ressorts hélicoïdaux (48) entourant les boulons (51), ou des ressorts hydropneumatiques dont le degré de remplissage avec de l'huile hydraulique peut être modifié.
3. Broyeur à disque selon la revendication 1 ou 2, caractérisé en ce que la pointe du cône de broyage (17) et le centre du disque de broyage (7) sont reliés d'une part par un corps de centrage (53, 58) et d'autre part par un perçage (54, 57) s'appliquant contre ce dernier par sa face intérieure.
4. Broyeur à disque selon la revendication 3, caractérisé en ce que le corps de centrage est réalisé sous la forme d'un cône de centrage (53) disposé dans le disque de broyage (7) et s'appliquant selon un contact linéaire dans un perçage cylindrique (54) ménagé dans le cône de broyage (17).
5. Broyeur à disque selon la revendication 3, caractérisé en ce que le corps de centrage est réalisé sous la forme d'un cylindre de centrage (58) disposé dans le cône de broyage (17) et s'appliquant selon un contact linéaire dans un perçage (57) qui s'élargit en forme de cône et est ménagé dans le disque de broyage (7).
6. Broyeur à disque selon la revendication 1 ou 2, caractérisé en ce que le logement de palier (23) peut être déplacé transversalement par rapport à l'axe de rotation du cône de broyage (17) et être fixé dans un plan formé par la fente de broyage (19) et les axes de rotation.
7. Broyeur à disque selon l'une des revendications 1 à 6, caractérisé en ce que l'angle d'inclinaison de la surface de travail du disque de broyage (7) est compris entre 0° et 90°.
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 EP0256147A1 (fr) 1988-02-24
EP0256147B1 true 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)

Families Citing this family (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
JP4038083B2 (ja) * 2002-07-16 2008-01-23 エム・テクニック株式会社 分散乳化装置及び分散乳化方法
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
JP4336566B2 (ja) * 2002-11-08 2009-09-30 キヤノン株式会社 トナー粒子の製造方法
JP4185806B2 (ja) * 2003-04-28 2008-11-26 キヤノン株式会社 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
CN111451438B (zh) * 2020-04-30 2021-07-09 榆林学院 一种用于铸造机械的混砂装置

Family Cites Families (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

Also Published As

Publication number Publication date
ATE48767T1 (de) 1990-01-15
EP0256147A1 (fr) 1988-02-24

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