EP0649686B1 - Laminoir à déplacement axial - Google Patents
Laminoir à déplacement axial Download PDFInfo
- Publication number
- EP0649686B1 EP0649686B1 EP19940402057 EP94402057A EP0649686B1 EP 0649686 B1 EP0649686 B1 EP 0649686B1 EP 19940402057 EP19940402057 EP 19940402057 EP 94402057 A EP94402057 A EP 94402057A EP 0649686 B1 EP0649686 B1 EP 0649686B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- rolling mill
- chock
- support
- axial displacement
- 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 title claims description 49
- 238000006073 displacement reaction Methods 0.000 claims description 44
- 238000005452 bending Methods 0.000 claims description 9
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/18—Adjusting or positioning rolls by moving rolls axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
Definitions
- the subject of the invention is a displacement rolling mill axial being able, in particular, to present a great opening stroke, such a rolling mill being usable more specially for hot rolling of metals not ferrous such as aluminum.
- each working cylinder is associated with a plurality of support cylinders arranged symmetrically on one side and on the other side of the clamping plane.
- the different cylinders have their axes substantially parallel and are superimposed on inside a cage with two uprights apart, each cylinder being centered on two aligned pins rotatably mounted, each via a bearing, in a holding chock which can slide at inside a window in the upright corresponding to the cage and provided with guide faces defining a direction of sliding of the chocks parallel to the clamping plane.
- the clamping force is generally applied by mechanical or hydraulic cylinders supported on one side on the cage and on the other on the chocks of one of the support cylinders, the other cylinder being blocked, so as to determine an approximation of the cylinders with a some crushing effect of the product passing between the working cylinders.
- the width of the product to be laminated which varies in depending on the work program, may be less than the length of the active part of the working cylinders. These are therefore not loaded uniformly and may arching causing excessive crushing of the sides side of the product.
- Various means can be used, in known manner, to avoid this drawback.
- modern rolling mills are often equipped with devices to exercise bending efforts, one way or the other, on the ends of the working rolls.
- Such devices generally consist of cylinders which are supported on the holding chocks placed respectively at the two ends of each cylinder.
- At least one of the cylinders is associated to an axial displacement control device comprising, for example, one or more cylinders fixed on amount of the cage, at the corresponding level and connected to one of the chocks of the cylinder by an organ hanging.
- the cambering means can be placed on supports that slide with the chocks, but there results in a certain complication of the installation and hydraulic circuits (EP-A-026903, EP-A-067040).
- JP-A-57-177.810 JP-A-57-177.810 to provide each movable cylinder with two pins whose length is increased by axial displacement distance so that slide axially with respect to the bearings of the chock corresponding, along a sliding span which extends over a length corresponding to the extent of the chock increased by the distance of movement.
- the axial displacement means which are placed on one side of the cylinder, rest on one part end of the corresponding journal, beyond the span sliding, via an organ drive rotatably mounted on said end part and axially fixed on the trunnion, so as to control axial displacement of the cylinder without interfering with rotation of it.
- the subject of the invention is new provisions. to solve all of these problems and, by particular, to realize the axial displacement of cylinders without stopping the scrolling of the product, even in the case of rolling mills having a very large stroke opening hours.
- the invention therefore relates, in general, an axial displacement rolling mill comprising, at inside a cage with two uprights apart, at minus two superimposed cylinders between which passes a product to be laminated and each carried in pairs aligned journals rotatably mounted respectively, by through support bearings, each in a holding chock guided in an upright window correspondent of the cage parallel to a plane of clamping in which the axes are placed substantially cylinders, the rolling mill comprising means for adjustment of an axial offset of at least one of cylinders relative to the opposite cylinder in function the width of the product to be rolled, with sliding axial of the journals of said displaceable cylinder in their respective chocks which remain fixed axially with respect to the corresponding amounts of the cage, said axial adjustment means being supported on a drive member rotatably mounted on a end of one of the trunnions of said cylinder movable and axially integral with it.
- axially movable cylinder can also be move parallel to itself and over a large opening stroke, along the vertical plane of clamping, with corresponding movement of chocks guided holding in the cage windows, as well as the drive member, and said axial displacement control means are provided a removable attachment means on the member and are mounted on a support likely to slide parallel to said plane of tightening and associated with positioning means of said means for controlling the axial displacement substantially at the level of the cylinder for engagement removable attachment means on the member cylinder drive.
- the axial displacement control means include, for each movable cylinder, at least one cylinder hydraulic whose body is fixed on the support sliding and the removable hooking means is fixed at the end of the cylinder rod and is mounted sliding on the support, parallel to the axis of the cylinder.
- the axial displacement control means include, at least for the cylinder movable in height, two cylinders placed symmetrically on either side of the clamping plane and are slidably mounted parallel to the clamping plane and susceptible to be controlled synchronously, said cylinders being mounted respectively on two movable supports in synchronism and associated, respectively, with means removable attachment with, respectively, two lateral parts of the drive member extending symmetrically on either side of the axis of the cylinder.
- At least one of the supports is associated with a sensor for locating the position of said support, and to means for controlling the sliding of the support along the upright depending sensor indications for setting the position of said support at the cylinder to move and the engagement of the control means of the axial movement with a drive member axially integral with the cylinder with possibility of rotation.
- Figure 1 is a partial half-view, in section transverse, a rolling stand fitted with a device according to the invention.
- Figure 2 is a partial half-view, in section transverse, from the same rolling stand in position maximum cylinder opening.
- Figure 3 shows all the cylinders in longitudinal section through the clamping plane.
- Figure 4 is a detail view of the device axial displacement in horizontal section along the line AA in Figure 3.
- Figure 5 is a partial view of the drive member according to arrow F 1 in Figure 4.
- FIG. 6 is a sectional view, on an enlarged scale, along line BB in Figure 4.
- Figure 7 is a side view, along arrow F 2 of Figure 1, of the height adjustment device.
- Figures 1 and 2 show the parts essentials of a Quarto type rolling mill comprising a set of cylinders mounted inside a cage 1, respectively two working rolls 2, 2 ', placed on either side of a plan P1 for the passage of the product to laminate and taking support each, on the side opposite the product, respectively on two support cylinders 20, 20 '.
- the axes of the different cylinders are substantially parallel and, most often, are placed substantially in the same clamping plane P2 which constitutes a plane of symmetry of the cage.
- each working cylinder 2 (2 ') includes a cylindrical active part 21 (21') and two pins 22 centered on the axis x'x of the cylinder and each provided with a cylindrical seat 23 rotating in a holding chock 3 (3 '), comprising, so known, one or more bearings 31 housed in a case 32.
- each support cylinder 20 (20 ') is carried by two pins each rotating in a chock 30.
- the cage 1 consists essentially of two spread uprights 11, connected by a cross member 12 and between which are placed the cylinders.
- the chocks 3 of working cylinders 2 and 30 of the supporting cylinders 20, are superimposed in windows 13 formed in the two uprights 11 and are provided with sliding faces 33 which can slide along guide faces 14 corresponding on each side of each window 13, parallel to the clamping plane P2 ( Figures 1 and 2).
- the cage 1 can be provided with all kinds of known devices that don't need to be described in detail.
- the product is usually transported on roller tables placed on either side of the rolling mill and whose level corresponds substantially to that of the upper generator of the working cylinder lower 2 'which rests on the lower support cylinder 20 ', these two cylinders therefore being placed at a level substantially constant.
- the rolling mill is also equipped with cambering devices acting on the chocks from the working cylinders to make a bending called "positive” or “negative”, respectively by tightening or relative spacing of said chocks.
- the chocks from working cylinders can be blocked axially with respect to the cage and the cylinders support. Therefore, it is possible to mount the means camber directly on chocks and avoid thus offsets and shifts.
- the clamping force is applied, by means not shown, on the chocks 30 'of the lower support cylinder 20' including the level varies only slightly.
- the width of the air gap is determined by the level of the upper support cylinder 20 which can be adjusted to a large amplitude between a minimum opening position and a maximum opening position, shown respectively in Figures 1 and 2.
- This setting of height is effected by screws 15 on which are applied the chocks 30 of the support cylinder 20 to the auxiliary cylinders 16 mounted on the crossmember fixed 12 and hanging on corresponding ears of each chock.
- the cylinders 17, which determine the spacing chocks 3, 3 ', working cylinders are dimensioned so as to be able to exert efforts of bending of the cylinders in the negative direction by spacing of chocks, against action, in direction reverse, of cylinders 34 of positive camber taking support directly, on one side on the chock 30 (30 ') of the cylinder support 20 (20 ') and the other on chock 3 (3') of associated working cylinder 2 (2 ').
- each pin 22 is provided, as we have shown in Figure 3, a cylindrical seat 23 which can slide axially in the internal cage 35 of the bearing 31 of the corresponding holding chock 3 and this sliding surface 23 extends over a length L1 at least equal to the L2 right-of-way of the landing increased by the maximum amplitude D of the axial displacement which is wish to achieve.
- the holding chocks 3a, 3b can be locked, axially, relative to the cage 1, the pins 22 sliding, along the spans of sliding 23 inside the corresponding bearings when adjusting the axial position of cylinder 2.
- the internal cage of each bearing is mounted on a socket 35 having an internal face cylindrical of equal diameter, to the nearest assembly clearance, to that of the sliding surface 23.
- each upright 11 of the cage is advantageously fitted with a lock 18 movable perpendicular to the clamping plane P1, under the action of a jack, so as to engage on lateral parts 36 of the chock 3 to block axially this with respect to the upright 11 in retaining, however, a possibility of sliding vertical allowing height adjustment of the chock 3.
- one or more are advantageously used cylinders supported on an auxiliary chock 4 mounted on an end portion 24 of the pin 22 which extends outwards beyond the sliding range 23.
- the auxiliary chock 4 comprises, in a conventional manner, a rolling bearing 41, housed in a housing 42 and whose inner cage is threaded on the extreme part 24 of the journal.
- the latter is advantageously separated from the sliding surface 23 by a shoulder 25 against which the chock 4 can be axially blocked so known, for example by means of a screwed ring 43.
- each working cylinder 2 (2 ') is controlled by two cylinders 5a, 5b, taking support, respectively, on both sides the amount 11 of the cage, on both sides of the window 13.
- the axial displacement cylinders 5a, 5b are each mounted on a support 6 which can slide vertically, under the action of a jack 66, along a slide 61 fixed on the corresponding part of the amount 11 of the cage.
- the slide 61 is advantageously constituted a profile kept at a certain distance from the upright 11 by arms 62 and defining a sliding face 63 parallel to the clamping plane P1.
- Each support 6 is kept applied against the slide 61 by hooking members 64 and constitutes thus a slide on which is provided a slide 68 parallel to the axis x'x of cylinder 2 and along which can move a sliding part 53 in hook shape, attached to the end of the rod 52 of the displacement cylinder 5 whose body is fixed itself on a base 65 constituting a part of the slide 6 and defining an application face of the jack 5 perpendicular to the axis x'x of cylinder 2.
- the two sliding hooks 53a, 53b, actuated, respectively, by the displacement cylinders 5a, 5b, are respectively provided with notches 54 in which engage lateral parts 45 formed, respectively on two ears 44 of the chock auxiliary 4 extending horizontally, on both sides on the other side of the cylinder axis x'x.
- the chock 4 which could turn in its bearing 41, is held in a horizontal position by at least one rod 36 fixed on one side of the chock 3 and extending outwardly cantilevered from it, in a direction parallel to the x'x axis of the cylinder 2.
- the rod 36 threads into a bore 46 of the chock 4 which thus is held horizontally and prevented from turning with cylinder 2, while being able to slide axially.
- each notch 54 extends vertically over the entire height of the hook 53 so as to allow slight vertical displacements of the chock 4 for follow the deformations of the axis x'x of cylinder 2 under the action of the camber cylinders 17, 34.
- each working cylinder is slidably mounted on their chocks in the same way respective 3a, 3b, but only one of them, for example the right pin 22b, is equipped with a chock auxiliary 4 connected to the cylinders 5 for axial movement.
- the two cylinders 5a, 5b can control, by through the hooks 53a, 53b, and the chock 4, axial displacements of cylinder 2 which moves with the chock 4 mounted axially fixed on its end 24, while chocks 3a, 3b, working cylinders remain integral axially with the uprights 11 of the cage, sliding along the two pins 22a, 22b, of the cylinder.
- each support slide 6 provided a cylinder 5 for axial displacement of the upper cylinder 2 can be moved vertically along the slide corresponding 61 under the action of an auxiliary cylinder 66 whose body is fixed on the amount of the cage and whose the rod is articulated, at its end, on the slide 6. It is thus possible, by means of the jacks 66, to adjust the heights of the two slides 6a, 6b, associated to the auxiliary chock 4 of the upper cylinder 2, from so as to place them substantially at the same level. In this position, the lateral parts 45 of the auxiliary chock 4 engage in the notches 54 hooks 53 mounted, with the jacks 5, on the slides 6a, 6b.
- the lower working cylinder 2 ' is also provided with an associated auxiliary chock, in a way similar to two mounted 5 'displacement cylinders, respectively, on two 6 'slides, as we have shown in Figure 7.
- the levels of the cylinder lower support 20 'and lower working cylinder 2 'which rests on it vary only slightly and it it is therefore not necessary, in service, to modify the height of the corresponding slides 6 'which remain at the working cylinder level lower 2 'and can therefore serve as a reference for adjusting the level of upper slides 6.
- each upper slide 6 is associated with a linear sensor 67 comprising a rod sliding whose end is connected to the slide lower 6 '.
- the sensors 67 therefore provide an indication of the height of the two upper slides 6 in the form of a signal which is taken into account by the general system control of the rolling mill and it acts on the cylinders 66 so as to adjust the height of the slides upper 6 compared to lower slides 6 ', depending on the spacing of the working rolls 2, 2 '.
- each cylinder 2 is controlled by a sensor 69 whose body is fixed on the base 65 of the corresponding slide 6 and whose rod is connected to the displacement control hook 53 axial.
- the camber cylinders 17, 34 can be mounted directly on chocks and therefore remain well centered with respect to the bearings, the cambering action can be exercised at the same time as the axial displacement of the working cylinders 2, 2 '.
- the range of adjustment of the spacing between the working cylinders can be important, the axial displacement control devices which can be positioned immediately at the cylinders correspondents.
- a rolling stand is generally fitted, at certain levels, with horizontal slides on which can rest, constantly, corresponding support parts of the chocks of each cylinder.
- the two working cylinders are, usually removed from the cage at the same time upper cylinder resting on the lower cylinder.
- each upper slide 6 is equipped a hook 7 which can engage, on the descent of the slide 6, on a corresponding hook 71 mounted swiveling around a horizontal axis on the slide lower 6 'and associated with a spring 73, the hook 71 can be opened by an auxiliary cylinder 72.
- the axial displacement cylinders 5 then bring the two working rolls 2, 2 ', in the extreme position towards the right, as shown in the upper half-view of the Figure 4.
- the rod 36 is engaged in the bore 46 of the auxiliary chock 4 only by its end which is provided with a groove 37 placed at the level of the posterior face of the chock 4.
- This is fitted with a latching lever 8 pivotally mounted, on the chock 4, around an axis 81 and extended by an arm 82 which holds the hook 8 in the open position, against the action of a spring 83, when the hook of displacement 53 is engaged on the lateral part 45 of the chick 4.
- Each attachment lever 8 is, moreover, provided a notch 84 which can engage in the groove 37 of the rod 36 under the action of the spring 83 when the lever 8 is released by raising the corresponding hook 53.
- the invention has been described in the context of a Quarto rolling mill and for the axial displacement of working cylinders but the same layouts could be applicable to any type of rolling mill and other cylinders, for example the support cylinders or the intermediate rolls in a Sexto rolling mill.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
Description
Claims (15)
- Laminoir à déplacement axial, comprenant, à l'intérieur d'une cage (1) ayant deux montants écartés (11), au moins deux cylindres (2, 2') superposés, entre lesquels passe un produit à laminer, et portés chacun par deux tourillons alignés (22) montés rotatifs respectivement, par l'intermédiaire de paliers d'appui (31), chacun dans une empoise de maintien (3) guidée dans une fenêtre (13) du montant (11) correspondant de la cage (1) parallèlement à un plan de serrage (P2) dans lequel sont placés sensiblement les axes des cylindres (2, 2'), le laminoir comportant des moyens (5) de réglage d'un décalage axial d'au moins l'un des cylindres (2) par rapport au cylindre opposé (2') en fonction de la largeur du produit à laminer, avec coulissement axial des tourillons dudit cylindre déplaçable (2) dans leurs empoises respectives (3) qui restent fixes axialement par rapport aux montants correspondants de la cage (1), lesdits moyens (5) de réglage axial prenant appui sur un organe d'entraínement (4) monté rotatif sur une extrémité de l'un des tourillons (22) dudit cylindre déplaçable (2) et solidaire axialement de celui-ci,
caractérisé par le fait que, pour s'adapter à un changement d'épaisseur du produit à laminer, le cylindre (2) déplaçable axialement peut en outre se déplacer parallèlement à lui-même et sur une grande course d'ouverture, le long du plan vertical de serrage (P2), avec déplacement correspondant des empoises de maintien (3) guidées dans les fenêtres (13) de la cage (1), ainsi que de l'organe d'entraínement (4), et que lesdits moyens (5) de commande du déplacement axial sont munis d'un moyen (53) d'accrochage amovible sur l'organe d'entraínement (4) et sont montés sur un support (6) susceptible de coulisser parallèlement audit plan de serrage (P2) et associé à des moyens (66) de positionnement desdits moyens (5) de commande du déplacement axial sensiblement au niveau du cylindre (2) pour l'engagement du moyen d'accrochage amovible (53) sur l'organe d'entraínement (4) du cylindre. - Laminoir selon la revendication 1, caractérisé par le fait que les moyens (5) de commande du déplacement axial comprennent, pour chaque cylindre déplaçable (2, 2'), au moins un vérin hydraulique (5) dont le corps est fixé sur le support coulissant (6) et que le moyen (53) d'accrochage amovible est fixé à l'extrémité de la tige (52) du vérin (5) et est monté coulissant sur le support (6), parallèlement à l'axe du cylindre (2).
- Laminoir selon la revendication 2, caractérisé par le fait que les moyens (5) de commande du déplacement axial comprennent, au moins pour le cylindre (2) déplaçable en hauteur, deux vérins (5a, 5b) placés symétriquement de part et d'autre du plan de serrage (P2) et susceptibles d'être commandés en synchronisme, lesdits vérins (5a, 5b) étant montés respectivement sur deux supports (6a, 6b) déplaçables en synchronisme et associés, respectivement, à des moyens (53a, 53b) d'accrochage amovible avec, respectivement, deux parties latérales (45) de l'organe d'entraínement (4) s'étendant symétriquement de part et d'autre de l'axe (x'x) du cylindre (2).
- Laminoir selon l'une des revendications précédentes, caractérisé par le fait qu'au moins l'un des supports coulissants (6) est associé à un capteur (67) de repérage de la position dudit support (6), et à des moyens (66) de commande du coulissement du support (6) le long du montant (11) en fonction des indications du capteur (67) pour le réglage de la position dudit support (6) au niveau du cylindre (2) à déplacer et l'engagement des moyens (5) de commande du déplacement axial avec un organe d'entraínement (4) solidaire axialement du cylindre (2) avec possibilité de rotation.
- Laminoir selon l'une des revendications précédentes, caractérisé par le fait que l'organe d'entraínement (4) de chaque cylindre (2) déplaçable axialement est constitué d'une empoise auxiliaire (4) montée rotative sur une partie extrême (24) du tourillon correspondant (22) du cylindre (2) et bloquée axialement par rapport à celui-ci, ladite empoise auxiliaire (4) étant munie d'au moins une oreille (44) susceptible de s'engager de façon amovible dans l'organe d'accrochage (53) solidaire des moyens de déplacement axial (5).
- Laminoir selon la revendication 5, caractérisé par le fait que chaque organe d'accrochage (53) est monté coulissant sur une glissière (68) ménagée sur le support (6) correspondant et parallèle à l'axe (x'x) du cylindre (2).
- Laminoir selon l'une des revendications 5 et 6, caractérisé par le fait que chaque organe d'accrochage (53) est muni d'une encoche (54) dans laquelle s'engage une partie latérale (45) de l'oreille (44) de l'empoise (4) et qui s'étend perpendiculairement à l'axe (x'x) du cylindre sur toute la hauteur de l'organe d'accrochage (53) de façon à permettre une variation de hauteur de l'empoise (4) par rapport au support (6).
- Laminoir selon l'une des revendications 5 à 7, caractérisé par le fait que l'empoise auxiliaire (4) est munie d'un alésage (46) dans lequel peut s'enfiler une tige (36) fixée sur l'empoise de maintien (3) du tourillon (22) et s'étendant parallèlement à l'axe (x'x) du cylindre, ladite tige (36) servant au maintien de l'empoise auxiliaire (4) sans gêner les déplacements axiaux de celle-ci avec le cylindre.
- Laminoir selon l'une des revendications 5 à 8, caractérisé par le fait que chaque empoise de maintien (3) d'un cylindre de travail (2) est bloquée axialement sur le montant correspondant (11) de la cage (1) par un moyen de solidarisation amovible (18) et est associée à des moyens amovibles (8) de solidarisation axiale avec le cylindre (2) pour permettre le démontage dudit cylindre (2) avec ses empoises (3a, 3b).
- Laminoir selon la revendication 9, caractérisé par le fait que le moyen amovible (8) de solidarisation axiale de l'empoise de maintien (3) est constitué d'un levier (8) monté rotatif autour d'un axe (81) sur l'empoise auxiliaire (4) et muni d'une encoche (84) susceptible de s'engager dans une gorge (37) ménagée sur la tige (36) de maintien de l'empoise auxiliaire (4), ladite encoche (84) se dégageant de la gorge (37) par une rotation dudit levier (8) commandée par l'engagement de l'empoise auxiliaire (4) dans l'organe (53) d'accrochage du vérin de déplacement (5).
- Laminoir selon la revendication 4, caractérisé par le fait que, dans le cas où les hauteurs de l'un des cylindres d'appui (20') et du cylindre de travail correspondant (2') ne varient que faiblement en service, les moyens (5') de commande du déplacement axial dudit cylindre de travail (2') sont montés sur un support (6') qui reste au niveau dudit cylindre (2') et sert de référence pour le réglage de la position en hauteur du support (6) des moyens de déplacement axial (5) de l'autre cylindre de travail (2).
- Laminoir selon la revendication 11, caractérisé par le fait qu'il comprend des moyens (7, 71), de solidarisation amovible des supports (6') de niveau sensiblement constant avec les supports (6) de niveau réglable permettant d'écarter ensemble lesdits supports (6, 6') du niveau des cylindres de travail (2, 2') auxquels ils sont respectivement associés, pour permettre le démontage desdits cylindres de travail avec leurs empoises de maintien (3, 3') et les empoises auxiliaires (4, 4').
- Laminoir selon l'une des revendications précédentes, caractérisé par le fait que chaque cylindre de travail (2, 2') est associé à des moyens de cambrage (7, 34), prenant appui directement sur ses empoises de maintien (3, 3').
- Laminoir selon la revendication 13, caractérisé par le fait que les moyens de cambrage (17) dans le sens d'écartement relatif des empoises (3, 3') sont constitués de vérins (17) comprenant chacun deux éléments prenant appui en des sens opposés, respectivement, sur les empoises de maintien (3, 3') des deux cylindres, lesdits vérins (17) ayant, d'une part, une amplitude de réglage compatible avec les possibilités de variation de l'entrefer entre les deux cylindres de travail (2, 2') et étant, d'autre part, dimensionnés de façon à pouvoir exercer les efforts de cambrage.
- Laminoir selon l'une des revendications précédentes, caractérisé par le fait que chaque palier d'appui (31) d'un tourillon (22) du cylindre déplaçable (2) est monté sur une douille (35) enfilée, avec possibilité de coulissement axial, sur une portée de glissement (23) ménagée sur le tourillon (22) et s'étendant sur une longueur (L1) au moins égale à l'emprise (L2) de l'empoise de maintien (3) augmentée de l'amplitude maximale (D) du déplacement axial du cylindre (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9311523A FR2710567B1 (fr) | 1993-09-28 | 1993-09-28 | Laminoir à déplacement axial. |
FR9311523 | 1993-09-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0649686A1 EP0649686A1 (fr) | 1995-04-26 |
EP0649686B1 true EP0649686B1 (fr) | 1998-06-17 |
EP0649686B2 EP0649686B2 (fr) | 2004-01-02 |
Family
ID=9451307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19940402057 Expired - Lifetime EP0649686B2 (fr) | 1993-09-28 | 1994-09-14 | Laminoir à déplacement axial |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0649686B2 (fr) |
JP (1) | JPH07164015A (fr) |
CN (1) | CN1050541C (fr) |
DE (1) | DE69411117T3 (fr) |
FR (1) | FR2710567B1 (fr) |
RU (1) | RU94035662A (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2851942B1 (fr) * | 2003-03-05 | 2006-04-28 | Procede de changement de configuration d'un laminoir et laminoir perfectionne pour la mise en oeuvre du procede | |
DE102009060641A1 (de) * | 2009-07-07 | 2011-01-13 | Sms Siemag Ag | Vorrichtung zur Arretierung des Einbaustückes und des Axiallagergehäuse eines Walzensatzes sowie des Walzenwechselwagen |
AT509455B1 (de) * | 2010-07-27 | 2011-09-15 | Andritz Ag Maschf | Walzgerüst mit walzenlagerung |
CN102553925A (zh) * | 2011-12-31 | 2012-07-11 | 太原重工股份有限公司 | 一种二辊连轧管机 |
CN102927856B (zh) * | 2012-11-12 | 2014-07-30 | 浙江南泰科技有限公司 | 鞭炮引线机头 |
JP6151936B2 (ja) * | 2013-03-13 | 2017-06-21 | 株式会社 英田エンジニアリング | ロールスタンド |
FR3010332B1 (fr) * | 2013-09-12 | 2015-10-02 | Fives Dms | Cassette pour laminoir et laminoir equipe d'une telle cassette |
CN104014592B (zh) * | 2014-06-18 | 2015-12-16 | 济南重工股份有限公司 | 一种二辊斜轧轧管机轧辊装置轴向调整机构 |
CN107350291B (zh) * | 2016-05-10 | 2020-03-31 | 北新集团建材股份有限公司 | 轧辊设备 |
CN107649518B (zh) * | 2017-11-07 | 2023-07-18 | 扬州诚德重工有限公司 | 一种水平四辊筒件轧机 |
CN110000213B (zh) * | 2019-04-19 | 2020-10-16 | 扬州顺达重工设备有限公司 | 一种便于更换轧辊的轧机 |
CN112404135B (zh) * | 2020-10-14 | 2022-12-02 | 沈阳中钛装备制造有限公司 | 用于管材轧制的自动换辊轧机及工作方法 |
CN112296093B (zh) * | 2020-11-09 | 2024-07-26 | 中冶京诚工程技术有限公司 | 曲臂驱动式轧机接轴扁头套定位装置 |
CN113828640A (zh) * | 2021-11-08 | 2021-12-24 | 广西钢铁集团有限公司 | 一种粗轧平辊在线移辊装置 |
CN114178318A (zh) * | 2021-12-29 | 2022-03-15 | 西南铝业(集团)有限责任公司 | 工作辊轴承座组件及拉弯矫 |
CN116351884B (zh) * | 2023-03-10 | 2024-07-02 | 中国机械总院集团北京机电研究所有限公司 | 轧辊夹紧机构及楔横轧机 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1038509B (de) * | 1956-08-09 | 1958-09-11 | Huettenwerk Rheinhausen Ag | Vorrichtung zum Festhalten und Einstellen der Anstellwalzen in axialer Richtung an schnellaufenden kontinuierlichen Walzenstrassen |
US3475940A (en) * | 1967-07-18 | 1969-11-04 | Mesta Machine Co | Fall-away spacer block |
US3822081A (en) * | 1973-03-08 | 1974-07-02 | Morgan Construction Co | Axial roll adjustment means |
JPS57177810A (en) * | 1981-04-24 | 1982-11-01 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
JPS60238009A (ja) * | 1984-05-10 | 1985-11-26 | Mitsubishi Heavy Ind Ltd | 圧延機のロ−ルオシレ−シヨン装置 |
JPS62286608A (ja) * | 1986-06-03 | 1987-12-12 | Ono Roll Seisakusho:Kk | 圧延機 |
DE3638330A1 (de) * | 1986-11-10 | 1988-05-19 | Schloemann Siemag Ag | Walzgeruest mit einer vorrichtung zum axialen verschieben von anstellbaren walzen |
DE3638331C2 (de) * | 1986-11-10 | 1995-07-13 | Schloemann Siemag Ag | Walzgerüst zum Walzen von Flachmaterial mit einem Paar von axial verschiebbaren Arbeitswalzen |
FR2611541B1 (fr) * | 1987-02-27 | 1994-04-29 | Clecim Sa | Dispositif de reglage du profil et de repartition d'usure de cylindres dans un laminoir a cylindres deplacables axialement |
-
1993
- 1993-09-28 FR FR9311523A patent/FR2710567B1/fr not_active Expired - Fee Related
-
1994
- 1994-09-14 EP EP19940402057 patent/EP0649686B2/fr not_active Expired - Lifetime
- 1994-09-14 DE DE1994611117 patent/DE69411117T3/de not_active Expired - Lifetime
- 1994-09-27 RU RU94035662/02A patent/RU94035662A/ru unknown
- 1994-09-28 CN CN94117950A patent/CN1050541C/zh not_active Expired - Fee Related
- 1994-09-28 JP JP25888494A patent/JPH07164015A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN1050541C (zh) | 2000-03-22 |
DE69411117T3 (de) | 2004-08-12 |
JPH07164015A (ja) | 1995-06-27 |
FR2710567A1 (fr) | 1995-04-07 |
DE69411117T2 (de) | 1998-11-19 |
DE69411117D1 (de) | 1998-07-23 |
RU94035662A (ru) | 1996-08-10 |
CN1107393A (zh) | 1995-08-30 |
FR2710567B1 (fr) | 1995-12-22 |
EP0649686A1 (fr) | 1995-04-26 |
EP0649686B2 (fr) | 2004-01-02 |
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