WO2011029486A1 - Device for supplying hydraulic fluid to a levelling unit - Google Patents

Device for supplying hydraulic fluid to a levelling unit Download PDF

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Publication number
WO2011029486A1
WO2011029486A1 PCT/EP2009/062660 EP2009062660W WO2011029486A1 WO 2011029486 A1 WO2011029486 A1 WO 2011029486A1 EP 2009062660 W EP2009062660 W EP 2009062660W WO 2011029486 A1 WO2011029486 A1 WO 2011029486A1
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WO
WIPO (PCT)
Prior art keywords
hydraulic fluid
leveling
box beam
hydraulic
fluid
Prior art date
Application number
PCT/EP2009/062660
Other languages
French (fr)
Inventor
Jean-Pierre Chazal
Bernard Dumas
Original Assignee
Siemens Vai Metals Technologies Sas
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Filing date
Publication date
Application filed by Siemens Vai Metals Technologies Sas filed Critical Siemens Vai Metals Technologies Sas
Publication of WO2011029486A1 publication Critical patent/WO2011029486A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling

Definitions

  • the present invention relates to a device for supplying hydraulic fluid to a leveling installation, adapted to a planing machine of said installation, according to the pre ⁇ ambule of claim 1.
  • the invention relates to the field of planing of steel products, such as for example strips or thick metal plates, in multi-roll leveling installations.
  • the planing products pass between said multiple rollers arranged to interlock by determining a corrugated path of said product which is thus subjected to bending effects in alternate directions.
  • the number of rolls varies for example from 5 to 11 in a planing installation of sheets and strips of great thickness. Since the physical principle of pla ⁇ ing is abundantly described in the literature, we will not dwell here on further developments on this subject.
  • a planing installation is a complex device consisting of different elements, one of the main ones being the planing machine or planeuse.
  • the latter comprises, in a general manner, a lower leveling cassette and an upper leveling cassette, each equipped with a plurality of ⁇ said planing rollers which are in direct contact with the product to be hovered.
  • These leveling rollers are generally supported by support rollers also equipping the said cassettes.
  • the set of rollers and rollers, in other words said cassettes, are assembled on res ⁇ respectively upper and lower chassis of the planer, the lower frame being generally qualified sommier.
  • the two leveling cassettes are an integral part of the structure rigid planter which comprises, inter alia, mon ⁇ tents secured by said bed base generally fixed in their lower part and by upper beams in their upper part.
  • the lower cassette is so supported by the bed frame in ⁇ férieur and the upper cassette by said Su regards ⁇ laughing chassis.
  • the latter is in fact generally a mobile pressure frame to which the cassette is fixed by locks.
  • the lower cassette is generally fixed, while the upper cassette can move vertically to adjust the spacing between the planing rollers ap ⁇ respectively to each of the cassettes, and Dé ⁇ terminate the corrugated path of the tape.
  • This spacing of the rollers and the resumption of casset ⁇ ture separation efforts, due to the strength of the band, are provided by hydraulic clamping cylinders supported on one side, on the upper beams and on the other , on the mobile pressure frame.
  • a motorized drive system operates the rollers in rotation and, by friction, to advance the belt at a determined speed.
  • the drive system generally comprises at least one motor driving at least one speed reducer which actuates at a required speed at least one gear box which distributes rota ⁇ tion to the different planing rollers of the lower and upper cassettes ⁇ via extensions connec ⁇ Tees one side to the outputs of the pinion box and on the other side, the journals end of the leveling rolls.
  • the product to be glided always follows a corrugated path between the rolls of the two cassettes. planing, the lower cassette is still supported by a fixed lower bed base, but the upper cassette is no longer secured to the mobile pressure frame. Indeed, in this design variant of a leveling installation, the upper cassette is directly pressed on the product to be hovered by clamping jacks which rest on a rigid and fixed upper beam, connected to the lower fixed base by columns or amounts.
  • the effects of bending that opposes the bending of the rolls are advantageously ob- maintained by differential adjustment of fluid pressures in a plurality of said clamping cylinders arranged transversa ⁇ LEMENT the product to hover between the rigid upper beam on the one hand and the deformable upper cassette on the other hand.
  • the flattening processing machines the ban ⁇ plates and large widths and thicknesses little ⁇ strong wind reaching a mass of more than 600 tonnes a hau ⁇ tor greater than 10 meters.
  • a planing cassette alone may have a mass greater than 75 tons.
  • the leveling forces set games are very im ⁇ healthy, thousands of Newtons, reaching penny ⁇ wind over 50,000 Newtons, and therefore require powerful hydraulic cylinders tightening, commensurate with leveling forces.
  • the hydraulic cylinders are usually fed with hydraulic fluid at a pressure of several hundreds of bars, typically 300 bars, and require the storage of fluid in a tank with a capacity of several thousand liters. .
  • the hydraulic system of a leveling installation is thus very complex and comprises, apart from a reserve of fluid and cylinders, many other elements, such as, for example, circulation pumps, flow control members and distribution of the fluid, and a set of piping for connecting all the elements of the hydraulic system to each other in order to create a hydraulic circuit.
  • the supply of fluid, pom ⁇ pes traffic and all flow regulators are usually placed near the leveler, usually under the ground level, in a cave specialist LEMENT provided for this purpose, commonly called "cellar hydrau ⁇ lic," which makes the cumbersome installation and leveling vo ⁇ light.
  • the circuit of fluid between the cellar and my ⁇ leveling china generally includes several tens of meters of pipes resistant to high pressure and which, in order to supply servo valves with fluid kept very clean, are generally expensive stainless steel. Regardless of cost, long circuits are Encom ⁇ brant and generate significant head losses and delays in the position control commands cylinders.
  • An object of the present invention is to provide a device for supplying hydraulic fluid to a leveling installation which is simple, compact and economically advantageous, while allowing easy maintenance of said device and ensuring compactness of the installation planing.
  • a device for supplying hydraulic fluid to a leveling installation by passing a product to be pla ⁇ between nested planing rollers of a planer comprising:
  • each of said cases settes being equipped with a plurality of said leveling rollers adapted to be in direct contact with the pro ⁇ to planer;
  • the device according to the invention is characterized in that a compartmentalized upper box girder intended to be dis ⁇ posed above said rigid structure is able to conte ⁇ nir a hydraulic fluid feeding the hydraulic system of the leveling installation.
  • the device according to the invention is characterized in that said box beam is directly disposed above said rigid structure and is capable of ensuring the higher rigidity of said structure of the pla ⁇ swimming machine.
  • the upper cassette is pressed on the product to be hovered by clamping jacks bearing directly on said box girder, itself connected to a lower bed base by amounts of the planer.
  • the rigidity of the box beam is sufficient to ⁇ ⁇ put a replacement of the upper beams ensuring the fastening of the amounts of the planer by said box beam connected to the lower bed base by said amounts of the planer.
  • said rigidity of the box beam allows said clamping cylinders to take ap ⁇ meme on it in order to directly press the cassette suletting ⁇ higher on the band, in a free configuration of said mobile chassis presented above and which ensured the die ⁇ Vertical placement of the upper cassette.
  • the device according to the invention is characterized in that said box beam comprises at least one compartment, or even a plurality of compartments.
  • Each of these compartments may in particular contain or tale ⁇ ne directly hydraulic fluid necessary to function ⁇ ment of the leveler.
  • at least one of said compartments is thus, in particular, able to act as a reservoir containing said hydraulic fluid. Therefore, the box beam may include a plurality of tanks adapted to contain said hydraulic fluid.
  • the box beam directly contains the fluid, ie its structure forms at least one com ⁇ partment adapted to receive and contain the fluid, while, in a second embodiment, said box beam comprises at least one reservoir, in particular adapted to contain the hydraulic fluid necessary for the operation of said cylinders, but whose structure is not directly part of ⁇ the structure of the beam. It would be for example at least one removable reservoir containing said fluid and easy removal would facilitate maintenance of said tank or hydraulic system.
  • the generic term "reservoir" to qualify, and said compartment of the caisson beam adapted to contain the fluid, and said reservoir included in the box beam and whose structure is separable from the structure of the beam.
  • it is a conte ⁇ nant, as for example said compartment, adapted to receive and contain a content, ie said fluid, and therefore, by def ⁇ nition, of tanks.
  • the device according to the invention is in particular charac ⁇ terized in that the box beam comprises at least two tanks containing the hydraulic fluid and means of communications between them. Said communication means ⁇ cation to connect the tanks to provide at least a passage from one tank to another for hy ⁇ hydraulic fluid.
  • the hydraulic fluid will be able to circulate from one of the reservoirs to the other, for example using a system of piping or communicating vessels.
  • the device according to the invention is characterized in that a first reservoir adapted to communicate with at least one other reservoir and said at least one other tank is adapted to form a fluid circulation circuit hy draulic ⁇ between the first reservoir which receives the fluid back from at least one jack, in particular, a clamping jack, and the other tank in which at least one pump draws the fluid, for example to supply said jack.
  • the box beam can contain several reservoirs communicating with each other.
  • a re ⁇ tanks in particular said first tank is fed by a fluid inlet, said fluid inlet Pu efore be a hydraulic return circuit connected to an actuator.
  • this first tank communicates with one or more tanks ⁇ , which can themselves communicate with one or more other tanks, and so on, thereby creating a network of tanks in the box beam, said network of tanks forming part of said hydraulic system mentioned above.
  • the box beam is able to contain one or more networks of separate or closed tanks, ie not communicating with each other.
  • These tank systems advantageously allow fluid to pass from said first reservoir to said other re ⁇ tanks. For example, after arriving in a first re ⁇ reservoir, the fluid passes in a second tank serving as a decanter or purifier, and is then pumped into a three-layer ⁇ SIEME reservoir from which it is reinjected underêt- in a hydraulic circuit feeding one or more cylinders.
  • the device according to the invention is particularly characterized in that at least one reservoir, in particular serving to supply the clamping cylinders, is made of stainless steel. Ega ⁇ lement, said communication means are themselves also made of stainless steel.
  • at least one tank is re- particularly consisting of stainless steel panels fixed on elements of a compartment or cais ⁇ sound of the beam and internal stiffeners component box beam.
  • the geometry of the box girder enables preferences beneficial ⁇ ment a simple configuration of the hydraulic system.
  • the device according to the invention is characterized in that at least one upper horizontal face of the box beam is adapted to support at least one pump ensuring in particular a flow of hydraulic fluid, especially in said hydraulic system.
  • a set of hydraulic fluid distributing means can in particular ⁇ be fixed on at least one support integral with at least one vertical face of the box beam.
  • the device according to the invention comprises at least one horizon ⁇ tale platform for maintenance of at least a part of all the hydraulic fluid distribution members, said platform being in particular secured to at least a ver tical ⁇ face of the box beam.
  • said horizontal maintenance platform is adapted to be desser ⁇ life from the ground by at least one possible access means ⁇ removable, whose removal can include ga- greatly influences the free passage around the leveler.
  • the device according to the invention is characterized in that the horizontal maintenance platform comprises at least one means of access to at least one upper face of the box beam.
  • the structure of the box beam in particular allows at least access to the interior of said beam for at least one person.
  • FIG. 1 embodiment of a rolling machine according to the prior art.
  • Figure 2 example of implantation of a leveling installation according to the prior art.
  • FIG. 3 embodiment of an ali device ⁇ mentation hydraulic fluid adapted to a leveling machine according to the invention.
  • FIG 4 embodiment according to the invention of a hydraulic fluid supply device ⁇ integrated in a planer of a planing installation.
  • Figure 5 embodiment of a box beam according to the invention.
  • FIG. 1 shows an embodiment of a planer of a leveling installation according to the prior art.
  • the products to be hovered pass between planing rollers 51, 61 imbricated from the planing machine which comprises in particular a rigid structure formed of a lower bed base 1, a mobile upper pres ⁇ sion frame 2, uprights 3 secured by beams 4 and said lower bed base 1.
  • the rigid structure allows in particular a relative displacement of an upper leveling cassette 6 with respect to a case ⁇ lower leveling sette 5 by means of a ver ⁇ tical movement of the pressure frame 2.
  • Each of said mobile case ⁇ settes 5, 6 is further equipped with a plurality of said rou ⁇ WPL leveling 51, 61 adapted to be in direct contact with the product to be leveled.
  • Said leveling rollers 51, 61 are generally supported by support rollers not repre sented ⁇ here.
  • the upper cassette 6 moves vertically to re ⁇ glide the spacing of the planing rollers and thereby determine a wavy path of the product to be hovered.
  • This spacing, as well as a resumption of efforts of separation of the cassettes 5, 6 due to a resistance of the product to be hovered, are ensured by hydraulic clamping jacks 7 bearing on one side on the upper beams 4 and, of the other, on the mobile pressure frame 2.
  • the mobile pressure frame 2 is constructed in two parts 21, 22 adapted to pivot relative to each other about an axis 23 under the effect of at least one transverse jack 24 so as to make it possible to compensate a flexion of the whole superior, ie cassette, rollers, rollers, mobile pres ⁇ sion chassis, clamping cylinders, under the effect of the pressure of the clamping jacks 7 and an antago ⁇ nist separation due to a resistance of the product to glide .
  • Said effort tends in particular to separate or remove the leveling rollers by opposing the clamping force of ser- ⁇ rage cylinders 7, particularly in the case of planing a product to pla ⁇ ner a dimension along a length planing rollers is less than said length of said rollers.
  • FIG. 2 shows an exemplary embodiment of a device of FIG. supplying hydraulic fluid to a leveling plant for planing products according to the prior art.
  • the flattening my ⁇ P china is installed in a pit that contains the lower beam.
  • the upper parts of its structure, including the upper part of the uprights 3 emerging from the said pit, the mobile pressure frame 2 and the upper beams 4, are located in such a way that extensions 84 of the drive system 8 are installed.
  • Said drive system 8 comprises at least one motor 81 actuating at least one reduction speed tor 82 actuates itself a distributed ⁇ gear box 83 which, by means of extensions 84 distributes the drive torque to all of pla ⁇ swimming rolls.
  • a hydraulic cellar 10 is arranged on one side or the other of a passage zone or scroll of the product to be hovered, outside the pit containing the pla ⁇ swimming machine. This hydraulic cellar 10 is therefore spaced several tens of meters from the hydraulic cylinders used for leveling operations.
  • Figure 3 describes a leveling machine to which is adapted a hydraulic fluid supply device se ⁇ lon the invention.
  • the feed device is integrated into the machine leveling which includes a fixed lower beam 1, a box beam top compartments 9 ⁇ mented connected to the lower beam 1 by uprights 3, a lower cassette 5 supported by the lower beam 1, an upper cassette 6 supported either by a mobile pressure frame, but directly pressed on a product to be hovered by clamping cylinders 7 which bear on the upper box girder 9.
  • This arrangement makes it possible to have a box girder 9 greater than both fixed and in one part. Cambering effects opposing the bending of the leveling rollers are obtained by adjusting the fluid pressures in the clamping cylinders 7.
  • FIG. 4 shows a new three-dimensional view of an embodiment of a hydraulic fluid supply device according to the invention, integrated in a leveling plant for products to be hovered, such as, for example, steel strips.
  • the hydraulic supply device of such a leveling installation is characterized in that a compartmentalized upper box beam 9 disposed above the rigid structure of the leveling machine P contains a hydraulic fluid supplying the hydraulic system.
  • box beam 9 can be disposed above upper beams ensuring the rigidity of the structure of the leveling machine, or, as a yorka ⁇ tageous
  • the box girder 9 ensures itself the rigidity of the structure of the leveling machine, so that said upper beams are no longer required and are replaced by said box beam 9.
  • the compartmentalized upper box beam 9, supported by the uprights 3 allows the upper cassette 6 to be pressed against the product to be hung by means of the clamping jacks 7 bearing directly on the box beam 9.
  • the upper box girder 9 contains hydraulic fluid necessary for actuation of the hydraulic cylinders, in particular ⁇ the clamps 7.
  • a plurality of pumps 91 dis- posed on a horizontal upper face of the beam cais ⁇ its upper 9 are used for circulation of the fluid in the hydraulic system of the leveling plant, particu ⁇ binding in hydraulic fluid supply circuits hydraulic cylinders.
  • a set of distribution members of the hydraulic fluid such as for example valves 92, distribution blocks 93, accumulators hydrop ⁇ neumatic 94, etc., are set closer to the pumps 91 and clamps 7 on supports integral with at least one of the vertical faces of the upper box girder 9, preferably on a visible face of a control cabin of the leveling installation.
  • FIG. 5 shows an exemplary embodiment of a caisson beam of the hydraulic fluid supply device according to the invention.
  • This box beam makes it possible to organize a storage of the hydraulic fluid in a planing plant for products to be hovered.
  • the box girder comprises dif ⁇ ent elements including: walls, in particular upper, lower walls 901b and laté ⁇ ral 901a, 901c, stiffening ribs 902, said walls and said stiffening ribs in particular forming compartments or juxtaposed boxes 907a to
  • reser ⁇ can be installed in each of the different com ⁇ compartments of the box beam, or by forming reser ⁇ Also see communicating, either by forming separate tanks. Similarly, each tank can be integrated into a circuit hy draulic ⁇ so that one or more reservoirs networks are formed and used to supply one or more vee ⁇ hydraulic rins. All the hydraulic circuits of the leveling installation, whether open or closed to the other hydraulic circuits, form said hy ⁇ hydraulic system of the leveling installation.
  • at least one hydraulic circuit reserves associated with fluid distribution components such as a pump, valves, etc., particularly to quickly replace a failed hydraulic and bearing a failure hydrau ⁇ the planing installation.
  • Two successive tanks ie a second tank succeeded to v ⁇ sponding to a first reservoir, may in particular be arranged with a baffle communication rece- to see the fluid returning from one or more cylinders in said first reservoir which is in particular office settling tank, for example the reservoir of the compartment 907a, and of pumping the fluid after settling in the second reservoir, for example that of the compartment 907b in order to to inject a fluid as pure as possible in said vé ⁇ rins.
  • the central compartment 908 can also advantageously be accessible from outside the box beam by an access, for example a manhole, allowing the passage of at least one person inside said beam. Cha ⁇ cun of said compartments, and each of said reser ⁇ Also see can be either hermetically sealed or open.
  • Figure 6 depicts an exemplary embodiment according to the inven ⁇ a hydraulic fluid reservoir in a box beam of a leveling installation.
  • the upper box girder consists of walls 901 of compartments such as, for example, the upper, lower and lateral walls, and stiffening ribs 902 which are assembled by welded joints 903.
  • hydraulic fluid is provided in tanks made of panels horizon ⁇ rate and vertical 904 stainless steel interconnected by corner connection pieces 905.
  • panels and sp ⁇ these connection are secured by welds 906 on elements of structure of the box beam, such as pa ⁇ rois 901, stiffening ribs 902, or welded seams 903.
  • the general design of the compartmented upper box girder installation system allows on the one hand the installation of a reserve of hydraulic fluid in the compartmentalized upper box girder and, on the other hand, the installation of hydraulic distribution and control members on at least one of the outer faces of said beam.
  • certain distribution units or of regulation may obviously be installed even ⁇ Internal Procedure of the box beam to ensure instal lation ⁇ leveling the less space possible.
  • the disposi ⁇ tif according to the invention thus has several advantages, whether at the technical or economic level, compared to existing devices in that:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention relates to a device for supplying hydraulic fluid to a levelling unit, in which a product to be levelled passes between the interlocking levelling rollers (51, 61) of a roller leveller (P), comprising: a rigid structure that allows an upper levelling chassis (6) to move in relation to a lower levelling chassis (5), each chassis being provided with a plurality of levelling rollers (51, 61) that can come into direct contact with the product to be levelled; and a hydraulic system responsible for ensuring, controlling and ordering at least the movement of the chassis (5, 6). The invention is characterised in that an upper sub-divided chassis beam (9), intended to be disposed above the rigid structure, can be used to house a hydraulic fluid that supplies the hydraulic system of the levelling unit.

Description

Dispositif d'alimentation en fluide hydraulique d'une installation de planage. Device for supplying hydraulic fluid to a leveling installation.
La présente invention concerne un dispositif d'alimentation en fluide hydraulique d'une installation de planage, adapté à une machine de planage de ladite installation, selon le pré¬ ambule de la revendication 1. The present invention relates to a device for supplying hydraulic fluid to a leveling installation, adapted to a planing machine of said installation, according to the pre ¬ ambule of claim 1.
En particulier, l'invention se rapporte au domaine du planage de produits sidérurgiques, comme par exemple des bandes ou des plaques métalliques épaisses, dans des installations de planage à rouleaux multiples. En règle générale, les produits à planer passent entre lesdits rouleaux multiples disposés de façon à s'imbriquer en déterminant un trajet ondulé dudit produit qui est ainsi soumis à des effets de flexion dans des sens alternés. Le nombre de rouleaux varie par exemple de 5 à 11 dans une installation de planage de tôles et de bandes de forte épaisseur. Etant donné que le principe physique du pla¬ nage est abondamment décrit dans la littérature, nous ne nous attarderons pas, ici, à de plus amples développements à ce suj et . In particular, the invention relates to the field of planing of steel products, such as for example strips or thick metal plates, in multi-roll leveling installations. In general, the planing products pass between said multiple rollers arranged to interlock by determining a corrugated path of said product which is thus subjected to bending effects in alternate directions. The number of rolls varies for example from 5 to 11 in a planing installation of sheets and strips of great thickness. Since the physical principle of pla¬¬ ing is abundantly described in the literature, we will not dwell here on further developments on this subject.
Une installation de planage est un dispositif complexe formé de différents éléments, dont un des principaux est la machine de planage ou planeuse. Cette dernière comprend, d'une façon générale, une cassette de planage inférieure et une cassette de planage supérieure, chacune équipée d'une pluralité des¬ dits rouleaux de planage qui sont en contact direct avec le produit à planer. Ces rouleaux de planage sont généralement supportés par des galets de soutien équipant eux aussi lesdi- tes cassettes. L'ensemble des rouleaux et galets, autrement dit lesdites cassettes, sont assemblés sur des châssis res¬ pectivement supérieur et inférieur de la planeuse, le châssis inférieur étant généralement qualifié de sommier. Les deux cassettes de planage font partie intégrante de la structure rigide de la planeuse qui comprend, entre autres, des mon¬ tants solidarisés par ledit sommier généralement fixe dans leur partie inférieure et par des poutres supérieures dans leur partie supérieure. A planing installation is a complex device consisting of different elements, one of the main ones being the planing machine or planeuse. The latter comprises, in a general manner, a lower leveling cassette and an upper leveling cassette, each equipped with a plurality of ¬ said planing rollers which are in direct contact with the product to be hovered. These leveling rollers are generally supported by support rollers also equipping the said cassettes. The set of rollers and rollers, in other words said cassettes, are assembled on res ¬ respectively upper and lower chassis of the planer, the lower frame being generally qualified sommier. The two leveling cassettes are an integral part of the structure rigid planter which comprises, inter alia, mon ¬ tents secured by said bed base generally fixed in their lower part and by upper beams in their upper part.
La cassette inférieure est ainsi supportée par le sommier in¬ férieur et la cassette supérieure par ledit châssis supé¬ rieur. Ce dernier est en fait généralement un châssis de pression mobile auquel la cassette est fixée par des verrous. Ainsi, la cassette inférieure est généralement fixe, tandis que la cassette supérieure peut se déplacer verticalement afin de régler l'écartement entre les rouleaux de planage ap¬ partenant respectivement à chacune des cassettes, et de dé¬ terminer le trajet ondulé de la bande. Cet écartement des rouleaux et la reprise des efforts de séparation des casset¬ tes, dus à la résistance de la bande, sont assurés par des vérins hydrauliques de serrage prenant appui, d'un côté, sur les poutres supérieures et, de l'autre, sur le châssis de pression mobile. The lower cassette is so supported by the bed frame in ¬ férieur and the upper cassette by said Supé ¬ laughing chassis. The latter is in fact generally a mobile pressure frame to which the cassette is fixed by locks. Thus, the lower cassette is generally fixed, while the upper cassette can move vertically to adjust the spacing between the planing rollers ap ¬ respectively to each of the cassettes, and Dé ¬ terminate the corrugated path of the tape. This spacing of the rollers and the resumption of casset ¬ ture separation efforts, due to the strength of the band, are provided by hydraulic clamping cylinders supported on one side, on the upper beams and on the other , on the mobile pressure frame.
Un système d'entraînement motorisé permet d'actionner les rouleaux en rotation et, par frottement, de faire avancer la bande à une vitesse déterminée. Le système d'entraînement comporte généralement au moins un moteur entraînant au moins un réducteur de vitesse qui actionne à une vitesse requise au moins une boîte à pignons qui distribue des couples de rota¬ tion aux différents rouleaux de planage des cassettes infé¬ rieure et supérieure par l'intermédiaire d'allonges connec¬ tées d'un côté aux sorties de la boîte à pignons et, de l'autre côté, à des tourillons d'extrémités des rouleaux de planage . A motorized drive system operates the rollers in rotation and, by friction, to advance the belt at a determined speed. The drive system generally comprises at least one motor driving at least one speed reducer which actuates at a required speed at least one gear box which distributes rota ¬ tion to the different planing rollers of the lower and upper cassettes ¬ via extensions connec ¬ Tees one side to the outputs of the pinion box and on the other side, the journals end of the leveling rolls.
Dans une variante de conception d'une installation de planage développée par la déposante, le produit à planer suit tou- jours un trajet ondulé entre les rouleaux des deux cassettes de planage, la cassette inférieure est toujours supportée par un sommier inférieur fixe, mais la cassette supérieure n'est plus solidaire au châssis de pression mobile. En effet, dans cette variante de conception d'une installation de planage, la cassette supérieure est directement pressée sur le produit à planer par des vérins de serrage qui prennent appui sur une poutre supérieure rigide et fixe, reliée au sommier inférieur fixe par des colonnes ou des montants. Des effets de cambrage s' opposant à la flexion des rouleaux sont avantageusement ob- tenus par réglage différencié de pressions de fluides dans une pluralité desdits vérins de serrage disposés transversa¬ lement au produit à planer entre la poutre supérieure rigide d'une part et la cassette supérieure déformable d'autre part. En règle générale, les machines de planage traitant les ban¬ des et plaques de grandes largeurs et fortes épaisseurs peu¬ vent atteindre une masse de plus de 600 tonnes pour une hau¬ teur supérieure à 10 mètres. Une cassette de planage peut avoir, à elle seule, une masse supérieure à 75 tonnes. Res- pectivement, les efforts de planage mis en jeux sont très im¬ portants, de plusieurs milliers de Newtons, atteignant sou¬ vent plus de 50000 Newtons, et nécessitent donc des vérins hydrauliques de serrage puissants, proportionnés aux efforts de planage. Afin de garantir une telle force de serrage, les vérins hydrauliques sont habituellement alimentés en fluide hydraulique à une pression de plusieurs centaines de bars, typiquement 300 bars, et exigent une mise en réserve de fluide dans un réservoir dont la capacité atteint plusieurs milliers de litres. Le système hydraulique d'une installation de planage est ainsi très complexe et comprend, en dehors d'une réserve de fluide et des vérins, de nombreux autres éléments, comme par exemple, des pompes de circulations, des organes de régulation du flux et de distribution du fluide, et un ensemble de tuyauterie permettant de connecter l'ensem- ble des éléments du système hydraulique entre eux afin de créer un circuit hydraulique. La réserve de fluide, les pom¬ pes de circulation et l'ensemble des organes de régulation du flux sont habituellement disposés à proximité de la planeuse, le plus souvent sous le niveau du sol, dans une cave spécia- lement prévue à cet usage, communément appelée «cave hydrau¬ lique», qui rend l'installation de planage encombrante et vo¬ lumineuse. Le circuit du fluide entre cette cave et la ma¬ chine de planage comprend généralement plusieurs dizaines de mètres de tubulures résistantes aux fortes pressions et qui, en vue d'alimenter des servovalves avec un fluide conservé très propre, sont généralement en acier inoxydable coûteux. Indépendamment de leur coût, ces longs circuits sont encom¬ brants et génèrent des pertes de charge non négligeables et des retards dans les commandes de régulation de position des vérins. In an alternative design of a leveling plant developed by the applicant, the product to be glided always follows a corrugated path between the rolls of the two cassettes. planing, the lower cassette is still supported by a fixed lower bed base, but the upper cassette is no longer secured to the mobile pressure frame. Indeed, in this design variant of a leveling installation, the upper cassette is directly pressed on the product to be hovered by clamping jacks which rest on a rigid and fixed upper beam, connected to the lower fixed base by columns or amounts. The effects of bending that opposes the bending of the rolls are advantageously ob- maintained by differential adjustment of fluid pressures in a plurality of said clamping cylinders arranged transversa ¬ LEMENT the product to hover between the rigid upper beam on the one hand and the deformable upper cassette on the other hand. Generally, the flattening processing machines the ban ¬ plates and large widths and thicknesses little ¬ strong wind reaching a mass of more than 600 tonnes a hau ¬ tor greater than 10 meters. A planing cassette alone may have a mass greater than 75 tons. Respectively, the leveling forces set games are very im ¬ healthy, thousands of Newtons, reaching penny ¬ wind over 50,000 Newtons, and therefore require powerful hydraulic cylinders tightening, commensurate with leveling forces. In order to guarantee such a clamping force, the hydraulic cylinders are usually fed with hydraulic fluid at a pressure of several hundreds of bars, typically 300 bars, and require the storage of fluid in a tank with a capacity of several thousand liters. . The hydraulic system of a leveling installation is thus very complex and comprises, apart from a reserve of fluid and cylinders, many other elements, such as, for example, circulation pumps, flow control members and distribution of the fluid, and a set of piping for connecting all the elements of the hydraulic system to each other in order to create a hydraulic circuit. The supply of fluid, pom ¬ pes traffic and all flow regulators are usually placed near the leveler, usually under the ground level, in a cave specialist LEMENT provided for this purpose, commonly called "cellar hydrau ¬ lic," which makes the cumbersome installation and leveling vo ¬ light. The circuit of fluid between the cellar and my ¬ leveling china generally includes several tens of meters of pipes resistant to high pressure and which, in order to supply servo valves with fluid kept very clean, are generally expensive stainless steel. Regardless of cost, long circuits are Encom ¬ brant and generate significant head losses and delays in the position control commands cylinders.
Un but de la présente invention est de proposer un dispositif d'alimentation en fluide hydraulique d'une installation de planage qui soit simple, peu encombrant et économiquement avantageux, tout en permettant une maintenance aisée dudit dispositif et en garantissant une compacité de l'installation de planage. An object of the present invention is to provide a device for supplying hydraulic fluid to a leveling installation which is simple, compact and economically advantageous, while allowing easy maintenance of said device and ensuring compactness of the installation planing.
Dans ce but, un dispositif est proposé par le contenu de la revendication 1. Un ensemble de sous-revendications présente également des avantages de l'invention.  For this purpose, a device is provided by the contents of claim 1. A set of subclaims also has advantages of the invention.
A partir d'un dispositif d'alimentation en fluide hydraulique d'une installation de planage par passage d'un produit à pla¬ ner entre des rouleaux de planage imbriqués d'une planeuse comprenant : From a device for supplying hydraulic fluid to a leveling installation by passing a product to be pla ¬ between nested planing rollers of a planer comprising:
une structure rigide permettant un déplacement relatif d'une cassette de planage supérieure par rapport à une cassette de planage inférieure, chacune desdites cas- settes étant équipée d'une pluralité desdits rouleaux de planage apte à être en contact direct avec le pro¬ duit à planer; a rigid structure allowing relative movement of an upper leveling cassette with respect to a lower leveling cassette, each of said cases settes being equipped with a plurality of said leveling rollers adapted to be in direct contact with the pro ¬ to planer;
un système hydraulique apte à assurer, contrôler et commander au moins le déplacement desdites cassettes; le dispositif selon l'invention est caractérisé en ce qu'une poutre caisson supérieure compartimentée destinée à être dis¬ posée au-dessus de ladite structure rigide est apte à conte¬ nir un fluide hydraulique alimentant le système hydraulique de l'installation de planage. a hydraulic system adapted to ensure, control and control at least the displacement of said cassettes; the device according to the invention is characterized in that a compartmentalized upper box girder intended to be dis ¬ posed above said rigid structure is able to conte ¬ nir a hydraulic fluid feeding the hydraulic system of the leveling installation.
En particulier, le dispositif selon l'invention est caractérisé en ce que ladite poutre caisson est directement disposée au-dessus de ladite structure rigide et est apte à assurer la rigidité supérieure de ladite structure de la machine de pla¬ nage. Avantageusement, la cassette supérieure est pressée sur le produit à planer par des vérins de serrage prenant appui directement sur ladite poutre caisson, elle-même reliée à un sommier inférieur par des montants de la planeuse. En effet, la rigidité de la poutre caisson est suffisante afin de per¬ mettre un remplacement des poutres supérieures assurant la solidarisation des montants de la planeuse par ladite poutre caisson reliée ainsi au sommier inférieur par lesdits montants de la planeuse. De surcroît, ladite rigidité de la pou- tre caisson autorise lesdits vérins de serrage à prendre ap¬ pui sur elle afin de presser directement la cassette supé¬ rieure sur la bande, selon une configuration libre dudit châssis mobile présenté précédemment et qui assurait le dé¬ placement vertical de la cassette supérieure. In particular, the device according to the invention is characterized in that said box beam is directly disposed above said rigid structure and is capable of ensuring the higher rigidity of said structure of the pla ¬ swimming machine. Advantageously, the upper cassette is pressed on the product to be hovered by clamping jacks bearing directly on said box girder, itself connected to a lower bed base by amounts of the planer. Indeed, the rigidity of the box beam is sufficient to ¬ ¬ put a replacement of the upper beams ensuring the fastening of the amounts of the planer by said box beam connected to the lower bed base by said amounts of the planer. Moreover, said rigidity of the box beam allows said clamping cylinders to take ap ¬ pui on it in order to directly press the cassette supé ¬ higher on the band, in a free configuration of said mobile chassis presented above and which ensured the die ¬ Vertical placement of the upper cassette.
Dans cette configuration qui remplace un châssis de pression mobile par ladite poutre caisson monolithique, fixe et de forte inertie à la flexion, il a avantageusement été imaginé de résoudre les problèmes liés à une alimentation des vérins en fluide hydraulique en utilisant le volume de la poutre caisson supérieure compartimentée comme réserve de fluide. A cette fin, le dispositif selon l'invention est en particulier caractérisé en ce que ladite poutre caisson comprend au moins un compartiment, voire une pluralité de compartiments. Chacun de ces compartiments peut en particulier renfermer ou conte¬ nir directement le fluide hydraulique nécessaire au fonction¬ nement de la planeuse. Avantageusement, au moins un desdits compartiments est ainsi, en particulier, apte à faire office de réservoir contenant ledit fluide hydraulique. Dès lors, la poutre caisson peut comprendre une pluralité de réservoirs apte à contenir ledit fluide hydraulique. Notons que selon un premier mode de réalisation, la poutre caisson contient directement le fluide, i.e. sa structure forme au moins un com¬ partiment apte à recevoir et à contenir le fluide, tandis que, selon un deuxième mode de réalisation, ladite poutre caisson comprend au moins un réservoir, notamment apte à contenir le fluide hydraulique nécessaire au fonctionnement desdits vérins, mais dont la structure ne fait pas directe¬ ment partie de la structure de la poutre. Il s'agirait par exemple d'au moins un réservoir amovible contenant ledit fluide et dont un retrait aisé faciliterait une maintenance dudit réservoir ou du système hydraulique. Dans un cas comme dans l'autre, nous utiliserons dans la suite de ce document le terme générique de "réservoir" afin de qualifier, et ledit compartiment de la poutre caisson apte à contenir le fluide, et ledit réservoir compris dans la poutre caisson et dont la structure est dissociable de la structure de la poutre. En effet, dans un cas comme dans l'autre, il s'agit d'un conte¬ nant, comme par exemple ledit compartiment, apte à recevoir et contenir un contenu, i.e. ledit fluide, et donc, par défi¬ nition, de réservoirs. In this configuration, which replaces a mobile pressure frame with said fixed, monolithic box beam with high flexural inertia, it has advantageously been imagined to solve the problems associated with feeding the cylinders with hydraulic fluid using the volume of the beam. compartmentalized upper caisson as a reserve of fluid. To this end, the device according to the invention is characterized in that said box beam comprises at least one compartment, or even a plurality of compartments. Each of these compartments may in particular contain or tale ¬ ne directly hydraulic fluid necessary to function ¬ ment of the leveler. Advantageously, at least one of said compartments is thus, in particular, able to act as a reservoir containing said hydraulic fluid. Therefore, the box beam may include a plurality of tanks adapted to contain said hydraulic fluid. Note that according to a first embodiment, the box beam directly contains the fluid, ie its structure forms at least one com ¬ partment adapted to receive and contain the fluid, while, in a second embodiment, said box beam comprises at least one reservoir, in particular adapted to contain the hydraulic fluid necessary for the operation of said cylinders, but whose structure is not directly part of ¬ the structure of the beam. It would be for example at least one removable reservoir containing said fluid and easy removal would facilitate maintenance of said tank or hydraulic system. In one case as in the other, we will use in the remainder of this document the generic term "reservoir" to qualify, and said compartment of the caisson beam adapted to contain the fluid, and said reservoir included in the box beam and whose structure is separable from the structure of the beam. Indeed, in one case as in the other, it is a conte ¬ nant, as for example said compartment, adapted to receive and contain a content, ie said fluid, and therefore, by def ¬ nition, of tanks.
De plus, le dispositif selon l'invention est notamment carac¬ térisé en ce que la poutre caisson comporte au moins deux ré- servoirs contenant le fluide hydraulique et des moyens de communications entre ces derniers. Lesdits moyens de communi¬ cation permettent de relier les réservoirs afin de ménager au moins un passage d'un réservoir à l'autre pour le fluide hy¬ draulique. En conséquence, le fluide hydraulique pourra cir- culer d'un des réservoirs à l'autre, en utilisant par exemple un système de tuyauterie ou de vases communiquant. In addition, the device according to the invention is in particular charac ¬ terized in that the box beam comprises at least two tanks containing the hydraulic fluid and means of communications between them. Said communication means ¬ cation to connect the tanks to provide at least a passage from one tank to another for hy ¬ hydraulic fluid. As a result, the hydraulic fluid will be able to circulate from one of the reservoirs to the other, for example using a system of piping or communicating vessels.
En particulier, le dispositif selon l'invention est caractérisé en ce qu'un premier réservoir apte à communiquer avec au moins un autre réservoir et au moins ledit autre réservoir sont aptes à former un circuit de circulation du fluide hy¬ draulique entre le premier réservoir qui reçoit le fluide en retour d'au moins un vérin, en particulier, un vérin de serrage, et l'autre réservoir dans lequel au moins une pompe prélève le fluide, afin d'alimenter par exemple ledit vérin. Ainsi, la poutre caisson peut contenir plusieurs réservoirs communiquant les uns avec les autres. Par exemple, un des ré¬ servoirs, en particulier ledit premier réservoir, est alimenté par une arrivée de fluide, ladite arrivée de fluide pou- vant être un retour de circuit hydraulique lié à un vérin.In particular, the device according to the invention is characterized in that a first reservoir adapted to communicate with at least one other reservoir and said at least one other tank is adapted to form a fluid circulation circuit hy draulic ¬ between the first reservoir which receives the fluid back from at least one jack, in particular, a clamping jack, and the other tank in which at least one pump draws the fluid, for example to supply said jack. Thus, the box beam can contain several reservoirs communicating with each other. For example, a re ¬ tanks, in particular said first tank is fed by a fluid inlet, said fluid inlet Pu efore be a hydraulic return circuit connected to an actuator.
Puis ce premier réservoir communique avec un ou plusieurs au¬ tres réservoirs, qui peuvent eux-mêmes communiquer avec un ou plusieurs autres réservoirs, et ainsi de suite, créant de ce fait, un réseau de réservoirs dans la poutre caisson, ledit réseau de réservoirs faisant partie dudit système hydraulique cité précédemment. Avantageusement, la poutre caisson est apte à contenir un ou plusieurs réseaux de réservoirs séparés ou fermés, i.e. ne communiquant pas les uns avec les autres. Ces réseaux de réservoirs permettent avantageusement au fluide de passer dudit premier réservoir auxdits autres ré¬ servoirs. Par exemple, après être arrivé dans un premier ré¬ servoir, le fluide passe dans un second réservoir servant de décanteur ou de purificateur, puis est pompé dans un troi¬ sième réservoir à partir duquel il est réinjecté sous près- sion dans un circuit hydraulique alimentant un ou plusieurs vérins . Then this first tank communicates with one or more tanks ¬ , which can themselves communicate with one or more other tanks, and so on, thereby creating a network of tanks in the box beam, said network of tanks forming part of said hydraulic system mentioned above. Advantageously, the box beam is able to contain one or more networks of separate or closed tanks, ie not communicating with each other. These tank systems advantageously allow fluid to pass from said first reservoir to said other re ¬ tanks. For example, after arriving in a first re ¬ reservoir, the fluid passes in a second tank serving as a decanter or purifier, and is then pumped into a three-layer ¬ SIEME reservoir from which it is reinjected under près- in a hydraulic circuit feeding one or more cylinders.
Afin d'assurer une qualité optimale du fluide, le dispositif selon l'invention est en particulier caractérisé en ce qu'au moins un réservoir, en particulier servant à l'alimentation des vérins de serrage, est constitué d'acier inoxydable. Ega¬ lement, lesdits moyens de communication sont eux-mêmes aussi constitués d'acier inoxydable. A cette fin, au moins un ré- servoir est en particulier constitué de panneaux d'acier inoxydable fixés sur des éléments d'un compartiment ou cais¬ son de la poutre et des raidisseurs internes constituant la poutre caisson. De plus, la géométrie de la poutre caisson permet avantageu¬ sement une configuration simple du système hydraulique. En effet, le dispositif selon l'invention est caractérisé en ce qu'au moins une face supérieure horizontale de la poutre caisson est apte à supporter au moins une pompe assurant en particulier une circulation du fluide hydraulique, notamment dans ledit système hydraulique. Egalement, un ensemble d'organes de distribution du fluide hydraulique peut notam¬ ment être fixé sur au moins un support solidaire à au moins une face verticale de la poutre caisson. Cette disposition du système hydraulique garantit la compacité de l'installation de planage, étant donné que tous les éléments nécessaires à son fonctionnement hydraulique, i.e. réserve de fluide hy¬ draulique, système hydraulique, etc., sont directement sup¬ portés par la structure rigide de la planeuse. In order to ensure optimum fluid quality, the device according to the invention is particularly characterized in that at least one reservoir, in particular serving to supply the clamping cylinders, is made of stainless steel. Ega ¬ lement, said communication means are themselves also made of stainless steel. To this end, at least one tank is re- particularly consisting of stainless steel panels fixed on elements of a compartment or cais ¬ sound of the beam and internal stiffeners component box beam. In addition, the geometry of the box girder enables preferences beneficial ¬ ment a simple configuration of the hydraulic system. Indeed, the device according to the invention is characterized in that at least one upper horizontal face of the box beam is adapted to support at least one pump ensuring in particular a flow of hydraulic fluid, especially in said hydraulic system. Also, a set of hydraulic fluid distributing means can in particular ¬ be fixed on at least one support integral with at least one vertical face of the box beam. This provision of the hydraulic system ensures the compactness of the leveling installation, since all the elements necessary for its hydraulic operation, ie fluid reserve hy ¬ draulic, hydraulic system, etc., are directly sup ¬ carried by the rigid structure of the planeuse.
L'ensemble du système hydraulique se trouvant alors centrali¬ sé dans un voisinage proche de la poutre caisson, il devient aisé, pour un utilisateur, de contrôler rapidement l'ensemble du dispositif d'alimentation en fluide hydraulique de l'ins- tallation de planage. Notamment, cette tâche de contrôle, voire de maintenance, est facilitée en ce que le dispositif selon l'invention comprend au moins une plateforme horizon¬ tale de maintenance d'au moins une partie de l'ensemble des organes de distribution du fluide hydraulique, ladite plate- forme étant en particulier solidaire à au moins une face ver¬ ticale de la poutre caisson. De manière avantageuse, ladite plateforme horizontale de maintenance est apte à être desser¬ vie à partir du sol par au moins un moyen d'accès éventuelle¬ ment amovible, dont le retrait permettrait notamment de ga- rantir un libre passage autour de la planeuse. De plus, le dispositif selon l'invention est en particulier caractérisé en ce que la plateforme horizontale de maintenance comporte au moins un moyen d' accès à au moins une face supérieure de la poutre caisson. Finalement, la structure de la poutre caisson permet en particulier au moins un accès à l'intérieur de ladite poutre pour au moins une personne. The entire hydraulic system then being centrali ¬ in a neighborhood close to the box beam, it becomes easy for a user to quickly control the entire hydraulic fluid supply device of the in- tallation of planing. In particular, this control task, or even maintenance, is facilitated in that the device according to the invention comprises at least one horizon ¬ tale platform for maintenance of at least a part of all the hydraulic fluid distribution members, said platform being in particular secured to at least a ver tical ¬ face of the box beam. Advantageously, said horizontal maintenance platform is adapted to be desser ¬ life from the ground by at least one possible access means ¬ removable, whose removal can include ga- greatly influences the free passage around the leveler. In addition, the device according to the invention is characterized in that the horizontal maintenance platform comprises at least one means of access to at least one upper face of the box beam. Finally, the structure of the box beam in particular allows at least access to the interior of said beam for at least one person.
Des exemples de réalisation et d'application sont fournis à l'aide des figures suivantes : Exemplary embodiments and applications are provided using the following figures:
Figure 1 exemple de réalisation d'une machine de pla- nage selon l'art antérieur. Figure 1 embodiment of a rolling machine according to the prior art.
Figure 2 exemple d'implantation d'une installation de planage selon l'art antérieur. Figure 2 example of implantation of a leveling installation according to the prior art.
Figure 3 exemple de réalisation d'un dispositif d'ali¬ mentation en fluide hydraulique adapté à une machine de planage selon l'invention. Figure 3 embodiment of an ali device ¬ mentation hydraulic fluid adapted to a leveling machine according to the invention.
Figure 4 exemple de réalisation selon l'invention d'un dispositif d'alimentation en fluide hydrauli¬ que intégré à une planeuse d'une installation de planage. Figure 5 exemple de réalisation d'une poutre caisson selon l'invention. Figure 4 embodiment according to the invention of a hydraulic fluid supply device ¬ integrated in a planer of a planing installation. Figure 5 embodiment of a box beam according to the invention.
Figure 6 exemple de réalisation d'un réservoir Figure 6 embodiment of a reservoir
fluide hydraulique selon l'invention.  hydraulic fluid according to the invention.
La figure 1 montre un exemple de réalisation d'une planeuse d'une installation de planage selon l'art antérieur. Les produits à planer passent entre des rouleaux de planage 51, 61 imbriqués de la planeuse qui comprend notamment une structure rigide formée d'un sommier inférieur 1, d'un châssis de pres¬ sion mobile 2 supérieur, de montants 3 solidarisés par des poutres supérieures 4 et par ledit sommier inférieur 1. La structure rigide permet en particulier un déplacement relatif d'une cassette de planage supérieure 6 par rapport à une cas¬ sette de planage inférieure 5 au moyen d'un déplacement ver¬ tical du châssis de pression mobile 2. Chacune desdites cas¬ settes 5, 6 est de plus équipée d'une pluralité desdits rou¬ leaux de planage 51, 61 aptes à être en contact direct avec le produit à planer. Lesdits rouleaux de planage 51, 61 sont généralement supportés par des galets de soutien non repré¬ sentés ici. Figure 1 shows an embodiment of a planer of a leveling installation according to the prior art. The products to be hovered pass between planing rollers 51, 61 imbricated from the planing machine which comprises in particular a rigid structure formed of a lower bed base 1, a mobile upper pres ¬ sion frame 2, uprights 3 secured by beams 4 and said lower bed base 1. The rigid structure allows in particular a relative displacement of an upper leveling cassette 6 with respect to a case ¬ lower leveling sette 5 by means of a ver ¬ tical movement of the pressure frame 2. Each of said mobile case ¬ settes 5, 6 is further equipped with a plurality of said rou ¬ WPL leveling 51, 61 adapted to be in direct contact with the product to be leveled. Said leveling rollers 51, 61 are generally supported by support rollers not repre sented ¬ here.
La cassette supérieure 6 se déplace verticalement afin de ré¬ gler l'écartement des rouleaux de planage et déterminer de la sorte un trajet ondulé du produit à planer. Cet écartement, ainsi qu'une reprise d'efforts de séparation des cassettes 5, 6 dus à une résistance du produit à planer, sont assurés par des vérins hydrauliques de serrage 7 prenant appui d'un côté sur les poutres supérieures 4 et, de l'autre, sur le châssis de pression mobile 2. The upper cassette 6 moves vertically to re ¬ glide the spacing of the planing rollers and thereby determine a wavy path of the product to be hovered. This spacing, as well as a resumption of efforts of separation of the cassettes 5, 6 due to a resistance of the product to be hovered, are ensured by hydraulic clamping jacks 7 bearing on one side on the upper beams 4 and, of the other, on the mobile pressure frame 2.
Le châssis de pression mobile 2 est construit en deux parties 21, 22 aptes à pivoter l'une par rapport à l'autre autour d'un axe 23 sous l'effet d'au moins un vérin transverse 24 de manière à permettre de compenser une flexion de l'ensemble supérieur, i.e. cassette, rouleaux, galets, châssis de pres¬ sion mobile, vérins de serrage, sous l'effet de la pression des vérins de serrage 7 et d'un effort de séparation antago¬ niste dû à une résistance du produit à planer. Ledit effort tend en particulier à séparer ou écarter les rouleaux de planage en s 'opposant à la force de serrage des vérins de ser¬ rage 7, notamment dans le cas du planage d'un produit à pla¬ ner dont une dimension selon une longueur des rouleaux de planage est inférieure à ladite longueur desdits rouleaux. En effet, le serrage d'un tel produit à planer induit une flexion de l'ensemble supérieur, flexion contre laquelle le¬ dit effort de séparation s'oppose. Des vérins de relevage 25 permettent d'assurer un déplacement de l'ensemble supérieur sur de longues courses, nécessaires par exemple pour le chan- gement des cassettes de planage ou le démontage des vérins de serrage . The mobile pressure frame 2 is constructed in two parts 21, 22 adapted to pivot relative to each other about an axis 23 under the effect of at least one transverse jack 24 so as to make it possible to compensate a flexion of the whole superior, ie cassette, rollers, rollers, mobile pres ¬ sion chassis, clamping cylinders, under the effect of the pressure of the clamping jacks 7 and an antago ¬ nist separation due to a resistance of the product to glide . Said effort tends in particular to separate or remove the leveling rollers by opposing the clamping force of ser- ¬ rage cylinders 7, particularly in the case of planing a product to pla ¬ ner a dimension along a length planing rollers is less than said length of said rollers. Indeed, the clamping of such a product to glide induces a flexion of the upper assembly, flexion against which ¬ said separation force is opposed. Lifting jacks 25 make it possible to ensure that the upper assembly moves over long distances, necessary for example for changing the leveling cassettes or disassembling the clamping cylinders.
Un système d'entraînement 8 motorisé décrit plus tard en fi¬ gure 2 permet d'actionner les rouleaux de planage 51, 61 en rotation et, par frottement, de faire avancer le produit à planer à une vitesse déterminée. Un système hydraulique est de plus apte à assurer, contrôler et commander le déplacement desdites cassettes 5, 6, notamment en actionnant l'ensemble des vérins hydrauliques 7, 24, 25. La figure 2 montre un exemple de réalisation d'un dispositif d'alimentation en fluide hydraulique d'une installation de planage de produits à planer selon l'art antérieur. La ma¬ chine de planage P est installée dans une fosse qui contient son sommier inférieur. Les parties supérieures de sa struc- ture, dont la partie haute des montants 3 émergeant hors de ladite fosse, le châssis de pression mobile 2 et les poutres supérieures 4, sont situées de telle façon que des allonges 84 du système d'entraînement 8 installé au sol soient au ni¬ veau des rouleaux de planage. Ledit système d'entraînement 8 comprend au moins un moteur 81 actionnant au moins un réduc- teur de vitesse 82 actionnant lui-même une boîte de distribu¬ tion à engrenages 83 qui, par l'intermédiaire d'allonges 84 distribue le couple moteur à l'ensemble des rouleaux de pla¬ nage. Une cave hydraulique 10 est aménagée d'un côté ou de l'autre d'une zone de passage ou de défilement du produit à planer, en dehors de la fosse contenant la machine de pla¬ nage. Cette cave hydraulique 10 se trouve donc écartée de plusieurs dizaines de mètres des vérins hydrauliques utilisés pour des opérations de planage. 8 a motor drive system described later in fi ¬ Figure 2 allows to operate the leveling rollers 51, 61 in rotation and, by friction, advancing the product to hover at a determined speed. A hydraulic system is moreover able to ensure, control and control the displacement of said cassettes 5, 6, in particular by actuating all the hydraulic cylinders 7, 24, 25. FIG. 2 shows an exemplary embodiment of a device of FIG. supplying hydraulic fluid to a leveling plant for planing products according to the prior art. The flattening my ¬ P china is installed in a pit that contains the lower beam. The upper parts of its structure, including the upper part of the uprights 3 emerging from the said pit, the mobile pressure frame 2 and the upper beams 4, are located in such a way that extensions 84 of the drive system 8 are installed. nor are the ground ¬ calf of the leveling rolls. Said drive system 8 comprises at least one motor 81 actuating at least one reduction speed tor 82 actuates itself a distributed ¬ gear box 83 which, by means of extensions 84 distributes the drive torque to all of pla ¬ swimming rolls. A hydraulic cellar 10 is arranged on one side or the other of a passage zone or scroll of the product to be hovered, outside the pit containing the pla ¬ swimming machine. This hydraulic cellar 10 is therefore spaced several tens of meters from the hydraulic cylinders used for leveling operations.
La figure 3 décrit une machine de planage à laquelle est adapté un dispositif d'alimentation en fluide hydraulique se¬ lon l'invention. En particulier, le dispositif d'alimentation est intégré à la machine de planage qui comprend un sommier inférieur 1 fixe, une poutre caisson 9 supérieure comparti¬ mentée reliée au sommier inférieur 1 par des montants 3, une cassette inférieure 5 supportée par le sommier inférieur 1, une cassette supérieure 6 supportée non plus par un châssis de pression mobile, mais directement pressée sur un produit à planer par des vérins de serrage 7 qui prennent appui sur la poutre caisson 9 supérieure. Cette disposition permet d'avoir une poutre caisson 9 supérieure à la fois fixe et en une seule partie. Des effets de cambrage s' opposant à la flexion des rouleaux de planage sont obtenus par réglage des pres- sions de fluides dans les vérins de serrage 7. Figure 3 describes a leveling machine to which is adapted a hydraulic fluid supply device se ¬ lon the invention. In particular, the feed device is integrated into the machine leveling which includes a fixed lower beam 1, a box beam top compartments 9 ¬ mented connected to the lower beam 1 by uprights 3, a lower cassette 5 supported by the lower beam 1, an upper cassette 6 supported either by a mobile pressure frame, but directly pressed on a product to be hovered by clamping cylinders 7 which bear on the upper box girder 9. This arrangement makes it possible to have a box girder 9 greater than both fixed and in one part. Cambering effects opposing the bending of the leveling rollers are obtained by adjusting the fluid pressures in the clamping cylinders 7.
La figure 4 présente une nouvelle vue en trois dimensions d'une réalisation d'un dispositif d'alimentation en fluide hydraulique selon l'invention, intégré à une installation de planage de produits à planer, tel que par exemple des bandes d'acier. Le dispositif d'alimentation hydraulique d'une telle installation de planage est caractérisé en ce qu'une poutre caisson 9 supérieure compartimentée disposée au-dessus de la structure rigide de la machine de planage P contient un fluide hydraulique alimentant le système hydraulique. En par- ticulier, la poutre caisson 9 peut être disposée au-dessus de poutres supérieures assurant la rigidité de la structure de la machine de planage, ou encore, selon une variante avanta¬ geuse, la poutre caisson 9 assure elle-même la rigidité de la structure de la machine de planage, de sorte que lesdites poutres supérieures n'ont plus lieu d'être et sont remplacées par ladite poutre caisson 9. Dans cette variante avantageuse, la poutre caisson 9 supérieure compartimentée, supportée par les montants 3, permet à la cassette supérieure 6 d'être pressée contre le produit à planer aux moyens des vérins de serrage 7 prenant directement appui sur la poutre caisson 9.FIG. 4 shows a new three-dimensional view of an embodiment of a hydraulic fluid supply device according to the invention, integrated in a leveling plant for products to be hovered, such as, for example, steel strips. The hydraulic supply device of such a leveling installation is characterized in that a compartmentalized upper box beam 9 disposed above the rigid structure of the leveling machine P contains a hydraulic fluid supplying the hydraulic system. In by- ticular, box beam 9 can be disposed above upper beams ensuring the rigidity of the structure of the leveling machine, or, as a avanta ¬ tageous Alternatively, the box girder 9 ensures itself the rigidity of the structure of the leveling machine, so that said upper beams are no longer required and are replaced by said box beam 9. In this advantageous variant, the compartmentalized upper box beam 9, supported by the uprights 3, allows the upper cassette 6 to be pressed against the product to be hung by means of the clamping jacks 7 bearing directly on the box beam 9.
La poutre caisson 9 supérieure contient un fluide hydraulique nécessaire à un actionnement des vérins hydrauliques, notam¬ ment les vérins de serrage 7. Une pluralité de pompes 91 dis- posées sur une face supérieure horizontale de la poutre cais¬ son 9 supérieure servent à la circulation du fluide dans le système hydraulique de l'installation de planage, en particu¬ lier dans des circuits d'alimentation en fluide hydraulique des vérins hydrauliques. Un ensemble d'organes de distribu- tion du fluide hydraulique, tel que par exemple des vannes 92, des blocs de distribution 93, des accumulateurs hydrop¬ neumatiques 94, etc., sont fixés au plus près des pompes 91 et des vérins de serrage 7 sur des supports solidaires d'au moins une des faces verticales de la poutre caisson 9 supé- rieure, préférentiellement sur une face visible d'une cabine de commande de l'installation de planage. The upper box girder 9 contains hydraulic fluid necessary for actuation of the hydraulic cylinders, in particular ¬ the clamps 7. A plurality of pumps 91 dis- posed on a horizontal upper face of the beam cais ¬ its upper 9 are used for circulation of the fluid in the hydraulic system of the leveling plant, particu ¬ binding in hydraulic fluid supply circuits hydraulic cylinders. A set of distribution members of the hydraulic fluid, such as for example valves 92, distribution blocks 93, accumulators hydrop ¬ neumatic 94, etc., are set closer to the pumps 91 and clamps 7 on supports integral with at least one of the vertical faces of the upper box girder 9, preferably on a visible face of a control cabin of the leveling installation.
De plus, une plateforme horizontale de maintenance 95 dessert au moins une partie des organes de distribution du fluide hy¬ draulique et se trouve en particulier solidarisée à au moins une face verticale de la poutre caisson supérieure sur la¬ quelle sont montés au moins une partie desdits organes de distribution . La figure 5 présente un exemple de réalisation d'une poutre caisson du dispositif d'alimentation en fluide hydraulique selon l'invention. Cette poutre caisson permet d'organiser un stockage du fluide hydraulique dans une installation de pla- nage de produits à planer. La poutre caisson comprend diffé¬ rents éléments constitutifs dont notamment: des parois, en particulier des parois supérieures, inférieures 901b et laté¬ rales 901a, 901c, des nervures de raidissement 902, lesdites parois et lesdites nervures de raidissement constituant en particulier des compartiments ou caissons juxtaposés 907a àIn addition, a horizontal platform maintenance 95 serves at least a portion of the fluid distribution members hy ¬ draulic and is in particular bonded to at least one vertical face of the beam upper box on ¬ which are mounted at least a portion said dispensing members. FIG. 5 shows an exemplary embodiment of a caisson beam of the hydraulic fluid supply device according to the invention. This box beam makes it possible to organize a storage of the hydraulic fluid in a planing plant for products to be hovered. The box girder comprises dif ¬ ent elements including: walls, in particular upper, lower walls 901b and laté ¬ ral 901a, 901c, stiffening ribs 902, said walls and said stiffening ribs in particular forming compartments or juxtaposed boxes 907a to
907i de chaque côté d'un compartiment central 908. Des réser¬ voirs peuvent être installés dans chacun des différents com¬ partiments de la poutre caisson, soit en formant des réser¬ voirs communiquant, soit en formant des réservoirs séparés. De même, chaque réservoir peut être intégré à un circuit hy¬ draulique de sorte qu'un ou plusieurs réseaux de réservoirs soient formés et permettent d'alimenter un ou plusieurs vé¬ rins hydrauliques. L'ensemble des circuits hydrauliques de l'installation de planage, qu'ils soient ouverts ou fermés aux autres circuits hydrauliques, forment ledit système hy¬ draulique de l'installation de planage. Avantageusement, au moins un circuit hydraulique de réserve associé à des organes de distribution du fluide, tel qu'une pompe, des vannes, etc., permet en particulier de rapidement remplacer un cir- cuit hydraulique défaillant et de palier à une panne hydrau¬ lique de l'installation de planage. 907i on each side of a central compartment 908. Also see reser ¬ can be installed in each of the different com ¬ compartments of the box beam, or by forming reser ¬ Also see communicating, either by forming separate tanks. Similarly, each tank can be integrated into a circuit hy draulic ¬ so that one or more reservoirs networks are formed and used to supply one or more vee ¬ hydraulic rins. All the hydraulic circuits of the leveling installation, whether open or closed to the other hydraulic circuits, form said hy ¬ hydraulic system of the leveling installation. Advantageously, at least one hydraulic circuit reserves associated with fluid distribution components such as a pump, valves, etc., particularly to quickly replace a failed hydraulic and bearing a failure hydrau ¬ the planing installation.
Deux réservoirs successifs, i.e. un second réservoir succé¬ dant à un premier réservoir, peuvent en particulier être organisés avec une communication à chicane permettant de rece- voir le fluide revenant d'un ou plusieurs vérins dans ledit premier réservoir qui fait en particulier office de réservoir de décantation, par exemple le réservoir du compartiment 907a, et de pomper le fluide après décantation dans le second réservoir, par exemple celui du compartiment 907b afin de ré- injecter un fluide aussi pure que possible dans lesdits vé¬ rins . Two successive tanks, ie a second tank succeeded to v ¬ sponding to a first reservoir, may in particular be arranged with a baffle communication rece- to see the fluid returning from one or more cylinders in said first reservoir which is in particular office settling tank, for example the reservoir of the compartment 907a, and of pumping the fluid after settling in the second reservoir, for example that of the compartment 907b in order to to inject a fluid as pure as possible in said vé ¬ rins.
Le compartiment central 908 peut en outre avantageusement être accessible de l'extérieur de la poutre caisson par un accès, par exemple un trou d'homme, permettant le passage d'au moins une personne à l'intérieur de ladite poutre. Cha¬ cun des dits compartiments, ainsi que chacun desdits réser¬ voirs peuvent être soit hermétiquement fermés, soit ouverts. The central compartment 908 can also advantageously be accessible from outside the box beam by an access, for example a manhole, allowing the passage of at least one person inside said beam. Cha ¬ cun of said compartments, and each of said reser ¬ Also see can be either hermetically sealed or open.
La figure 6 décrit un exemple de réalisation selon l'inven¬ tion d'un réservoir de fluide hydraulique dans une poutre caisson d'une installation de planage. Selon une technique propre à la présente invention, la poutre caisson supérieure est constituée de parois 901 de compartiments tel que par exemple les parois supérieures, inférieures et latérales, et de nervures de raidissement 902 qui sont assemblées par des joints soudés 903. Une rétention du fluide hydraulique est assurée dans des réservoirs constitués de panneaux horizon¬ taux et verticaux d'acier inoxydable 904 raccordés entre eux par des pièces de raccordement d'angles 905. Panneaux et piè¬ ces de raccordement sont fixés par des soudures 906 sur des éléments de structure de la poutre caisson, tel que les pa¬ rois 901, les nervures de raidissement 902, ou les joints soudés 903. Figure 6 depicts an exemplary embodiment according to the inven ¬ a hydraulic fluid reservoir in a box beam of a leveling installation. According to a technique peculiar to the present invention, the upper box girder consists of walls 901 of compartments such as, for example, the upper, lower and lateral walls, and stiffening ribs 902 which are assembled by welded joints 903. hydraulic fluid is provided in tanks made of panels horizon ¬ rate and vertical 904 stainless steel interconnected by corner connection pieces 905. panels and sp ¬ these connection are secured by welds 906 on elements of structure of the box beam, such as pa ¬ rois 901, stiffening ribs 902, or welded seams 903.
En résumé, la conception générale de l'installation de planage à poutre caisson supérieure compartimentée permet d'une part l'installation d'une réserve de fluide hydraulique dans la poutre caisson supérieure compartimentée et, d'autre part, l'installation d'organes de distribution et de régulation hydraulique sur au moins une des faces extérieures de ladite poutre. Avantageusement, certains organes de distribution ou de régulations peuvent évidemment être installés à l'inté¬ rieur même de la poutre caisson afin de garantir une instal¬ lation de planage la moins encombrante possible. Le disposi¬ tif selon l'invention présente ainsi plusieurs avantages, que ce soit au niveau technique ou économique, par rapport aux dispositifs existant en ce que: In summary, the general design of the compartmented upper box girder installation system allows on the one hand the installation of a reserve of hydraulic fluid in the compartmentalized upper box girder and, on the other hand, the installation of hydraulic distribution and control members on at least one of the outer faces of said beam. Advantageously, certain distribution units or of regulation may obviously be installed even ¬ Internal Procedure of the box beam to ensure instal lation ¬ leveling the less space possible. The disposi ¬ tif according to the invention thus has several advantages, whether at the technical or economic level, compared to existing devices in that:
- il s'affranchit d'un aménagement du génie civil d'une installation de laminage et planage afin d'y loger les installations hydrauliques, c'est-à-dire : une cave hy- draulique avec ses moyens d'accès, son aération, ses is¬ sues de secours et un réseau de caniveaux pour le chemi¬ nement des tuyauteries entre la cave hydraulique, la planeuse et ses vérins. - it frees itself from a civil engineering installation of a rolling and planing installation in order to house the hydraulic installations, that is to say: a hydraulic cellar with its means of access, its aeration, its relief is ¬ sues and gutters network for chemi ¬ ment of the pipes between the hydraulic cellar, the leveler and cylinders.
- il permet de construire l'ensemble des tuyauteries du système hydraulique dans un atelier de fabrication de l'installation de planage, s ' affranchissant de la sorte d'opérations d'assemblage, de contrôle, de décapage, de rinçage qui ne peuvent avoir lieu normalement que sur le site d'installation de la planeuse. Il en résulte un gain de temps, d'argent et une facilité et simplicité de mise en place de l'installation de planage.  it makes it possible to construct all the pipes of the hydraulic system in a manufacturing workshop of the leveling installation, dispensing with the sort of assembly, control, stripping and rinsing operations that can not be carried out. normally only at the installation site of the planer. This results in a saving of time, money and ease and simplicity of setting up the planing installation.
- il facilite la maintenance lourde de la planeuse, en supprimant les interventions en cave hydraulique néces¬ saires afin de changer par exemple des pompes ou des mo- teurs . - it facilitates the heavy maintenance of the leveler, by removing interventions hydraulic cellar neces ¬ sary to change for example pumps and mo- tors.
- il garantit une proximité immédiate des vérins et du système hydraulique, permettant en cela une diminution considérable de la longueur des tuyauteries et, par voie de conséquence, une diminution des pertes de charge ain- si qu'une amélioration des temps de réponse du système de régulation de position des vérins.  - it guarantees an immediate proximity of the cylinders and the hydraulic system, thus allowing a considerable reduction in the length of the pipes and, consequently, a reduction of the pressure losses as well as an improvement of the response times of the system position control of the cylinders.
il garantit un faible encombrement de l'installation de planage, et un abaissement des coûts de sa réalisation dû à l'économie de matériaux et de gros œuvre.  it guarantees a small footprint of the leveling installation, and a lowering of the costs of its realization due to the economy of materials and structural work.

Claims

Revendications  claims
Dispositif d'alimentation en fluide hydraulique d'une ins¬ tallation de planage par passage d'un produit à planer entre des rouleaux de planage (51, 61) imbriqués d'une pla- neuse (P) comprenant: A hydraulic fluid supply a ¬ ins tallation leveling by passing a product to hover between the leveling rollers (51, 61) nested one neuse ceiling (P) comprising:
une structure rigide permettant un déplacement re¬ latif d'une cassette de planage supérieure (6) par rapport à une cassette de planage inférieure (5) , chacune desdites cassettes étant équipée d'une plu¬ ralité desdits rouleaux de planage (51, 61) aptes à être en contact direct avec le produit à planer; un système hydraulique apte à assurer, contrôler et commander au moins le déplacement desdites casset¬ tes (5, 6) ; a rigid structure allowing a re ¬ relative displacement of an upper leveling cassette (6) relative to a lower leveling cassette (5), each of said cassettes being equipped with a plu ¬ rality of said planing rollers (51, 61 ) able to be in direct contact with the product to be hovered; a hydraulic system adapted to ensure, control and control at least the displacement of said cassets ¬ tes (5, 6);
caractérisé en ce qu'une poutre caisson (9) supérieure compartimentée destinée à être disposée au-dessus de la¬ dite structure rigide est apte à contenir un fluide hy¬ draulique alimentant le système hydraulique. characterized in that a compartmentalized upper box girder (9) intended to be disposed above the said rigid structure ¬ is able to contain a hy ¬ hydraulic fluid supplying the hydraulic system.
Dispositif selon revendication 1 caractérisé en ce que la¬ dite poutre caisson (9) est apte à assurer la rigidité su¬ périeure de ladite structure de la planeuse (P) . 3. Dispositif selon une des revendications 1 ou 2, caractéri¬ sé en ce que ladite poutre caisson (9) comprend au moins un compartiment. Device according to claim 1 characterized in that the ¬ said box beam (9) is adapted to ensure the rigidity su ¬ of said structure of the planer (P). 3. Device according to one of claims 1 or 2, charac ¬ in that said box beam (9) comprises at least one compartment.
4. Dispositif selon une des revendications 1 à 3, caractérisé en ce que ladite poutre caisson (9) comprend au moins un réservoir contenant ledit fluide hydraulique. 4. Device according to one of claims 1 to 3, characterized in that said box beam (9) comprises at least one reservoir containing said hydraulic fluid.
5. Dispositif selon une des revendications 1 à 4, caractérisé en que la poutre caisson (9) comporte au moins deux réser- voirs contenant le fluide hydraulique et des moyens de communications entre ces derniers. 5. Device according to one of claims 1 to 4, characterized in that the box beam (9) comprises at least two reservoirs. seeps containing hydraulic fluid and means of communication therebetween.
6. Dispositif selon une des revendications 4 à 5, caractérisé en ce qu'un premier réservoir apte à communiquer avec au moins un autre réservoir et au moins ledit autre réservoir sont aptes à former un circuit de circulation du fluide hydraulique entre le premier réservoir qui reçoit le fluide en retour d'au moins un vérin (7) et l'autre réser¬ voir dans lequel au moins une pompe prélève le fluide. 6. Device according to one of claims 4 to 5, characterized in that a first tank adapted to communicate with at least one other tank and at least said other tank are adapted to form a hydraulic fluid circulation circuit between the first tank which receives the fluid back from at least one cylinder (7) and the other reservoir ¬ see in which at least one pump takes the fluid.
7. Dispositif selon une des revendications 4 à 6, caractérisé en ce qu'au moins un réservoir est constitué d'acier inoxydable . 7. Device according to one of claims 4 to 6, characterized in that at least one tank is made of stainless steel.
8. Dispositif selon une des revendications 5 à 7, caractérisé en ce que lesdits moyens de communication sont constitués d'acier inoxydable. 8. Device according to one of claims 5 to 7, characterized in that said communication means are made of stainless steel.
9. Dispositif selon une des revendications 4 à 8, caractérisé en ce qu'au moins un réservoir est constitué de panneaux d'acier inoxydable fixés sur des éléments du caisson de la poutre et des raidisseurs internes constituant la poutre caisson . 9. Device according to one of claims 4 to 8, characterized in that at least one tank is made of stainless steel panels attached to the elements of the box of the beam and internal stiffeners constituting the box beam.
10. Dispositif selon une des revendications 1 à 9, caracté¬ risé en ce qu'au moins une face supérieure horizontale de la poutre caisson est apte à supporter au moins une pompe (91) . 10. Device according to one of claims 1 to 9, caracté¬ ¬ ized in that at least one upper horizontal face of the box beam is adapted to support at least one pump (91).
11. Dispositif selon une des revendications 1 à 10 caracté¬ risé en ce qu'un ensemble d'organes de distribution (92, 93, 94) du fluide hydraulique est fixé sur au moins un support solidaire à au moins une face verticale de la pou¬ tre caisson. 11. Device according to one of claims 1 to 10 caract¬ ¬ ized in that a set of distribution members (92, 93, 94) of the hydraulic fluid is fixed on at least one support secured to at least one vertical face of the louse ¬ be caisson.
12. Dispositif selon une des revendications 1 à 11, caracté risé en ce qu'il comprend au moins une plateforme horizon taie de maintenance (95) d'au moins une partie de l'ensem ble des organes de distribution (92, 93, 94) du fluide hy draulique . 12. Device according to one of claims 1 to 11, characterized in that it comprises at least one platform horizon maintenance window (95) of at least a portion of all the distribution members (92, 93, 94) of the hydraulic fluid.
13. Dispositif selon une des revendications 1 à 12, caracté risé en ce que la plateforme horizontale de maintenance (95) est apte à être desservie à partir du sol par au moins un moyen d'accès éventuellement amovible. 13. Device according to one of claims 1 to 12, characterized in that the horizontal maintenance platform (95) is adapted to be served from the ground by at least one optionally removable access means.
14. Dispositif selon une des revendications 1 à 13, caracté risé en ce que la plateforme horizontale de maintenance (95) comporte au moins un moyen d'accès à au moins une face supérieure de la poutre caisson (9) . 14. Device according to one of claims 1 to 13, characterized in that the horizontal maintenance platform (95) comprises at least one access means for at least one upper face of the box beam (9).
15. Dispositif selon une des revendications 1 à 14, caracté risé en ce que la structure de la poutre caisson (9) per¬ met au moins un accès à 1 ' intérieur de ladite poutre pour au moins une personne. 15. Device according to one of claims 1 to 14, characterized in that the structure of the box beam (9) per ¬ at least one access to 1 inside said beam for at least one person.
PCT/EP2009/062660 2009-09-09 2009-09-30 Device for supplying hydraulic fluid to a levelling unit WO2011029486A1 (en)

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CN102397916A (en) * 2011-11-27 2012-04-04 襄阳博亚精工装备股份有限公司 Automatic locking device for piston cylinder of upper roller system

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