EP0645189B1 - Perfectionnements aux broyeurs de terre destinée à la fabrication de produits en terre cuite. - Google Patents
Perfectionnements aux broyeurs de terre destinée à la fabrication de produits en terre cuite. Download PDFInfo
- Publication number
- EP0645189B1 EP0645189B1 EP19940402133 EP94402133A EP0645189B1 EP 0645189 B1 EP0645189 B1 EP 0645189B1 EP 19940402133 EP19940402133 EP 19940402133 EP 94402133 A EP94402133 A EP 94402133A EP 0645189 B1 EP0645189 B1 EP 0645189B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shim
- bearings
- hoops
- mill according
- slideway
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
Definitions
- the present invention relates to shredders such as those which are employed to prepare raw materials for the manufacture of products ceramics.
- mills operate by rolling, that is to say that they are constituted by two counter-rotating rollers between which is poured the material to be ground which will be used to manufacture, by molding or extrusion, the products.
- frets Two cylinders made of an alloy resistant to abrasion. Generally these cylinders are called “frets”. These frets are driven, by any suitable means, in rotation in opposite direction.
- the object of the present invention is to overcome these drawbacks by proposing a hoop spacing adjustment system such that the bearing surfaces are always in the same position, these surfaces being placed so as to be symmetrical with respect to the axis of the resultant of the forces: it follows that there is no more deformation, which is a considerable improvement over to known devices.
- the present invention relates to a grinder according to claim 1 and the dependent claims 2 to 8.
- the vertical bearing surfaces against the bearings and the surfaces obliques in contact are arranged substantially symmetrically with respect to a horizontal plane containing the result of the forces acting on the frets.
- the grinder according to the invention has two frets 1 and 2 which are cylinders made of a resistant material to wear.
- the shaft 1a of the hoop 1 is carried by two bearings 3 and the shaft 2a of the hoop 2 is carried by two bearings 4.
- These two shafts la and 2a are rotated in opposite direction by any appropriate means, for example by two driven pulleys 5 and 6 by belts or the like.
- the bearings 3 and 4 are slidably mounted in two slides 7 provided in frame 8 of the crusher.
- the bearings 3 are held by an adjustable stop 10 bearing against a vertical wall 7a integral with the slide 7 in which they can slide, which by construction ensures perfect parallelism of this hoop called in which will follow the "fixed" fret.
- the two bearings 4 are subjected to the thrust V of two hydraulic cylinders 12 which are identical and supplied by the same hydraulic pressure.
- This wedge 11 is a variable thickness wedge.
- it is made up of two parts 11a and 11b which are in abutment against one another.
- Each part has a flat vertical face in abutment against a bearing and an oblique face in abutment against oblique side of the other party.
- the part 1 presses it against the bearing 3 by a flat face 13 perpendicular to the axis of the slide 7; while part 11b bears against the bearing 4 by a flat face 14 perpendicular to the axis of the slide 7.
- the oblique face 16 of the part 11a of the wedge 11 bears against the oblique face 15.
- the part 11a of the wedge 11 is coupled by a threaded core 17 to a screw micrometric 18 driven by a motor 19, the axis of the screw 12 being perpendicular to that of the slides 7.
- the part 11a of the wedge is therefore movable transversely to the slide 7, while the part 11b is fixed transversely to the slide 7.
- the part 11a slides vertically, its support against part 11b is always against the bearing surface of the face 15 which, for its part, is immobile transversely to the slide 7.
- the parts 11a and 11b of the variable thickness shim are arranged so that the bearing surfaces of the faces 13, 14, 15 and 16 are crossed in their middle by the plane P containing the axes of the trees la and 2a and therefore containing the resulting from the applied forces. So the efforts are always symmetrically distributed and no asymmetric deformation is possible.
- a shim additional plate 20 is interposed between the flat face 14 of the part 11b and the bearing 4.
- the machine also includes grinders 21, 22 which are not described in more detail because they do not relate to the invention.
- Another advantage of the device which is the subject of the present invention over the previously known devices lies in the fact that the transverse dimensions of the movable part 11a of the wedge 11 are not limited by those of the slide 7: the larger they are, the greater the adjustment range and this without the positions of the bearing surfaces of the faces 13, 14 or 15 are modified relative to the plane containing the axes of the trees 1a and 2a.
- This horizontal slide arrangement eliminates all defects of systems currently in use. But it also provides other advantages.
- an electrical holding detection device can be arranged. in contact with each wedge 11 against its bearing or with the two parts of the wedge 11 at variable thickness. This allows in case of accidental introduction of a foreign body send, as soon as contact is interrupted, a signal revealing the passage of a body foreign and can trigger the shutdown of the cylinder engine.
- the bearings 3 are held by the stop (s) 10 against a vertical wall 7a: but according to a variant, not shown, this wall 7a does not exist, the bearings 3 being held by the stops 10 directly in support against the flat face 13 of the shim with variable thickness or against a part intermediate 13a, interposed between said face 13 and the wedge 11.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Rolling Contact Bearings (AREA)
Description
Claims (8)
- Broyeur pour le laminage des matières premières destinées à la fabrication de produits céramiques, du type comportant deux frettes cylindriques (1, 2) contrarotatives portées par des paliers (3, 4), chacune des frettes cylindriques (1, 2) étant portée par des paliers (3 ou 4) ; lesdits paliers (3, 4) comportant des premiers paliers (3) maintenus immobilisés et des deuxièmes paliers (4) susceptibles de coulisser dans une glissière (7), dans lequel :caractérisé en ce que : les paliers (4) susceptibles de coulisser sont soumis à la poussée d'un ou plusieurs vérins (12) hydrauliques ; chaque partie mobile (11a) est apte à coulisser verticalement sa face oblique (16) le long de la face oblique (15) de l'autre partie (11b) de cale ; et les frettes (1, 2) peuvent être rapprochées en faisant monter verticalement chaque partie mobile (11a) de cale.au moins une cale (11) d'épaisseur variable est interposée entre undit premier palier (3) et undit deuxième palier (4) pour régler l'écartement des deux frettes (1, 2) de laminage ;chaque cale 11 est constituée d'une partie (11a) mobile dans le sens transversal à la glissière et d'une autre partie (11b);chaque partie (11a ou 11b) de cale a une face plane (13 ou 14) perpendiculaire à l'axe de glissière (7) et une face oblique (16 ou 15) parallèle à et en appui contre la face oblique (15 ou 16) de l'autre partie (11b ou 11a) de cale ;
- Broyeur pour le laminage entre deux frettes cylindriques de matières premières destinées à la fabrication de produits céramiques selon la revendication 1, caractérisé par le fait que la position des surfaces d'appui des faces (13, 14, 15, 16) est déterminée de façon que les surfaces d'appui sont sensiblement symétriques par rapport au plan horizontal contenant les axes des arbres (1a, 2a) des frettes (1, 2), afin que les efforts soient toujours symétriquement répartis.
- Broyeur selon la revendication 1 ou 2, dans lequel une cale additionnelle (20) peut être disposée entre la face verticale (14) de la partie fixe (11b) de cale et le palier (4) correspondant.
- Broyeur selon la revendication 3, dans lequel l'épaisseur de la cale additionnelle (10) est égale à la distance parcourue par les paliers (4) de la frette mobile (2) entre la position la plus basse et la position la plus haute de la partie mobile (11a) de cale (11).
- Broyeur selon l'une quelconque des revendications précédentes, dans lequel les caractéristiques physiques des cales (11) sont déterminées de façon à compenser la dilatation thermique des frettes (1, 2) afin de conserver un écartement de broyage constant.
- Broyeur selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il comporte un dispositif électrique de détection du maintien en contact de chaque cale (11) avec son appui qui est susceptible d'arrêter la commande de motorisation des cylindres.
- Broyeur selon l'une quelconque des revendications précédentes, dans lequel les paliers (3) sont maintenus immobilisés en appui contre une paroi verticale (7a) de la glissière (7) au moyen de butées (10).
- Broyeur selon l'une quelconque des revendications 1 à 6, dans lequel les paliers (3) immobilisés sont maintenus en appui directement par les butées (10) contre la cale (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9311557A FR2710555B1 (fr) | 1993-09-29 | 1993-09-29 | Perfectionnements aux broyeurs de terre destinée à la fabrication de produits en terre cuite. |
| FR9311557 | 1993-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0645189A1 EP0645189A1 (fr) | 1995-03-29 |
| EP0645189B1 true EP0645189B1 (fr) | 2001-07-25 |
Family
ID=9451337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19940402133 Expired - Lifetime EP0645189B1 (fr) | 1993-09-29 | 1994-09-26 | Perfectionnements aux broyeurs de terre destinée à la fabrication de produits en terre cuite. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0645189B1 (fr) |
| DE (1) | DE69427794T2 (fr) |
| ES (1) | ES2161746T3 (fr) |
| FR (1) | FR2710555B1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974422B (zh) * | 2012-12-11 | 2014-12-03 | 四川峨胜水泥集团股份有限公司 | 辊压机限位器 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE43854C (de) * | A. WAGNER in Böblingen, Württemberg | Drehlager für Walzenachsen | ||
| US2158321A (en) * | 1937-06-08 | 1939-05-16 | Charles N Ford | Ore pulverizer |
| DE1227313B (de) * | 1958-12-13 | 1966-10-20 | Kloeckner Humboldt Deutz Ag | Walzenbrecher mit UEberlastsicherung |
| GB993723A (en) * | 1963-06-11 | 1965-06-02 | Rose Downs & Thompson Ltd | Rolling equipment |
| GB1192732A (en) * | 1966-08-31 | 1970-05-20 | Rose Downs & Thompson Ltd | Roll Gap Control |
| US3517531A (en) * | 1967-11-03 | 1970-06-30 | Gulf & Western Ind Prod Co | Rolling mill gage control actuator system |
| US3684332A (en) * | 1971-03-29 | 1972-08-15 | Procter & Gamble | Apparatus for adjusting the center distance between bearing support members |
-
1993
- 1993-09-29 FR FR9311557A patent/FR2710555B1/fr not_active Expired - Fee Related
-
1994
- 1994-09-26 DE DE1994627794 patent/DE69427794T2/de not_active Expired - Fee Related
- 1994-09-26 EP EP19940402133 patent/EP0645189B1/fr not_active Expired - Lifetime
- 1994-09-26 ES ES94402133T patent/ES2161746T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0645189A1 (fr) | 1995-03-29 |
| DE69427794D1 (de) | 2001-08-30 |
| FR2710555A1 (fr) | 1995-04-07 |
| ES2161746T3 (es) | 2001-12-16 |
| DE69427794T2 (de) | 2002-04-25 |
| FR2710555B1 (fr) | 1995-11-24 |
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