EP1582325B1 - Conveyor adaptable on a concrete-mixer truck and truck mixer with such a conveyor - Google Patents

Conveyor adaptable on a concrete-mixer truck and truck mixer with such a conveyor Download PDF

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Publication number
EP1582325B1
EP1582325B1 EP05290656A EP05290656A EP1582325B1 EP 1582325 B1 EP1582325 B1 EP 1582325B1 EP 05290656 A EP05290656 A EP 05290656A EP 05290656 A EP05290656 A EP 05290656A EP 1582325 B1 EP1582325 B1 EP 1582325B1
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EP
European Patent Office
Prior art keywords
conveyor
rigid member
conveyor belt
chassis
vehicle
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.)
Not-in-force
Application number
EP05290656A
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German (de)
French (fr)
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EP1582325A1 (en
Inventor
Henri-Bruno Levesque
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Theam
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Theam
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4234—Charge or discharge systems therefor
    • B28C5/4244—Discharging; Concrete conveyor means, chutes or spouts therefor
    • B28C5/4255—Discharging; Concrete conveyor means, chutes or spouts therefor using transporting belts, e.g. mounted on a foldable frame
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0409—Devices for both conveying and distributing with conveyor belts

Definitions

  • the present invention relates to an adaptable conveyor on a concrete mixer type of vehicle, and to such a vehicle equipped with such a conveyor.
  • such a conveyor In the transport position, such a conveyor can fold on the vehicle with which it is associated so as to have a minimum footprint, consistent with the requirements of regulatory vehicle template.
  • such a conveyor In the working position, such a conveyor can be deployed to deliver material from the vehicle, such as fresh concrete, to a suitable location on a construction site.
  • conveyors of this type had the disadvantage of having a high weight (commonly 3 tons for a transport length of 16 meters), which had the effect of limiting their payload and requiring means actuation (hydraulic cylinders, in particular) of high jig.
  • the present invention is intended to overcome this disadvantage.
  • the closed box structure of the conveyor frame according to the invention gives the latter a much higher resistance than that of a conventional frame.
  • the conveyor according to the invention allows a considerable lightening of the frame.
  • the trough form of the upper part of the box allows to receive and guide the conveyor belt without the need to resort to roller systems as is the case in the conveyors of the prior art.
  • This also contributes to the lightening of the frame, and therefore to the increase of the payload of the conveyor and the reduction of the template of the actuating means of this conveyor.
  • the box structure can accommodate bodies such as pipes and hydraulic cylinders necessary for the actuation of the conveyor, which allows on the one hand to protect these bodies, and on the other hand to obtain an aesthetic the conveyor according to the invention more sober than that of conveyors of the state of the art.
  • the invention also relates to a conveyor as defined by claim 9.
  • the present invention also relates to a concrete mixer type vehicle equipped with a conveyor according to the foregoing.
  • FIG. 1 On which there is shown a concrete mixer type vehicle comprising, as is known per se, a router 3 for kneading a material such as fresh concrete.
  • This vehicle 1 is equipped with a conveyor 5 typically comprising, as is visible on the Figures 1 and 2 , a frame 6 formed of a plurality of rigid elements 7, 9, 11 hinged together about substantially horizontal axes 13, 15.
  • a continuous conveyor belt 17 extends over the top and bottom of the frame 6 and is driven by not shown displacement means so as to transport fresh concrete leaving the router 3 to the free end 19 of the conveyor on an appropriate site location.
  • the first element 7 of this conveyor is itself mounted to move about a substantially horizontal axis and about a substantially vertical axis relative to the vehicle 1.
  • jack means 21, 23, 25 enable the conveyor 5 to be moved from the visible transport position to the figure 1 at a visible working position on the figure 2 and vice versa.
  • this frame is of the closed box type.
  • At least one of the three elements 7, 9, 11 has a hollow cross section delimited by four walls 27a, 27b, 27c, 27d.
  • the upper wall 27d is shaped in the trough, that is to say it defines a kind of gutter adapted to receive and guide the conveyor belt not shown on the Figures 3 to 5 but bearing the reference 17 on the figure 1 .
  • FIG. 3 to 5 a conveyor is shown having the particularity that its second 9 and third 11 elements are telescopic.
  • each of these elements is actually made up of two parts, one in closed box and the other in tube mounted telescopic one in the other.
  • the present invention also extends to a conveyor having only one or not at all of telescopic element, and having more or less than three elements articulated between them.
  • rollers 31a to 31f for supporting the conveyor belt are provided on the upper part of the conveyor only in the end regions of each of the elements 7 to 11.
  • Rollers 33a, 33b are also provided under the conveyor for returning the conveyor belt.
  • Hydraulic control elements 35 telescopic movements and articulation of the conveyor can be accommodated in the hollow space defined by the boxes forming the elements 7 to 11.
  • Hydraulic control members 35 may typically include hydraulic cylinders and control lines.
  • Most of the structure of the elements 7, 9, 11 may be formed in a light metal alloy for example aluminum-based.
  • housings 37a, 37b are also possible to provide, on the sides of these elements, openings that can be obscured by housings 37a, 37b (see figure 4 ) formed in lightweight materials such as composite materials.
  • the closed box structure of the frame 6 of the conveyor 5 gives the latter a much greater resistance than that of a conventional frame.
  • the conveyor 5 can have a chassis 6 clearly lightened.
  • the trough shape of the upper part 27d (see figure 5 ) of the box allows to receive and guide the conveyor belt without the need to resort to roller systems as is the case in conveyors of the prior art.
  • the box structure accommodates the members 35, and thus protect these organs while improving the aesthetics of the conveyor compared to a conventional conveyor.
  • the conveyor which has just been described allows a weight saving of about 500 to 700 kilos compared to a conventional conveyor, thereby increasing the payload available.
  • the figure 3 indicates the location of this device 39 with respect to the conveyor 5.
  • this device 39 is intended to be interposed between the first element 7 of this conveyor and a gantry 41 intended to be fixed on the vehicle 1.
  • This device 39 comprises a support arm 43 intended to be rotatably mounted on the frame 41 around a substantially vertical axis A1.
  • the rotation of the support arm 43 relative to the gantry 41 is performed by means of a double-acting cylinder 45 visible on the figure 3 .
  • the support arm 43 comprises a bearing 47 with a substantially vertical axis A2 capable of receiving a base of circular section connected to the first element 7 of the conveyor.
  • a pinion 49 having the same axis A2 as that of the bearing 47 is rotatably mounted inside the support arm 43.
  • This pinion 49 preferably comprises two rows of teeth 49a and 49b.
  • the support arm 43 has on each of its sides a groove 51 (see figure 7 ).
  • each of the grooves 51 extends the rod 53 of a respective cylinder 55a, 55b.
  • each of these rods is fastening means 57 for connecting these rods 51 to a chain not shown.
  • This chain therefore extends between the fixing means 57 of each of the cylinders 55a, 55b, by wrapping around the pinion 49.
  • this pinion 49 comprises two rows of teeth 49a, 49b as shown, the corresponding chain is obviously adapted to cooperate with both rows of teeth.
  • a protective casing 59 formed for example in a metal alloy extends around the support arm 43 so as to cover the grooves 51 and the pinion 49, thereby enclosing the chain inside the support arm 43.
  • a fixed stop 61 is arranged in the gap E without chain (the chain only winds up on the part of the pinion 49 situated towards the outside of the support arm 43) separating the support arm 43 from the pinion 49, in the vicinity teeth 49a, 49b of this pinion.
  • the fixed stop 61 is disposed between the two rows of teeth 49a, 49b of the pinion 49.
  • the two jacks 55a, 55b are capable of exerting counter-traction forces on the chain which passes around the pinion 49, thus making it possible to drive in rotation about a substantially vertical axis A2 the first element 7 of the conveyor 5, and therefore the entire conveyor.
  • the fixed stop 61 makes it possible to prevent the chain from wrapping around the pinion 49 in the event of breakage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Framework For Endless Conveyors (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The conveyor has a chassis (6) with three rigid units (7, 9, 11), where the unit (7) is movable around vertical and horizontal axes with respect to a vehicle. The unit (9) is movable around a horizontal axle (13) with respect to the unit (7). A continuous conveyor belt extends on the top and bottom of the chassis. The units (7, 9, 11) have a closed shell structure whose upper part conforms to a trough, to receive and guide the belt. An independent claim is also included for a concrete mixing vehicle.

Description

La présente invention se rapporte à convoyeur adaptable sur un véhicule du type bétonnière, et à un tel véhicule équipé d'un tel convoyeur.The present invention relates to an adaptable conveyor on a concrete mixer type of vehicle, and to such a vehicle equipped with such a conveyor.

On connaît du document EP-A-0 654 427 un convoyeur comprenant :

  • un châssis comprenant :
    • un premier élément rigide mobile autour d'axes sensiblement vertical et horizontal par rapport audit véhicule,
    • un deuxième élément rigide mobile autour d'un axe sensiblement horizontal par rapport audit premier élément rigide,
  • une bande transporteuse continue s'étendant sur le dessus et le dessous dudit châssis, et
  • des moyens pour faire circuler ladite bande transporteuse sur ledit châssis.
Document is known EP-A-0 654 427 a conveyor comprising:
  • a chassis comprising:
    • a first rigid element movable about axes substantially vertical and horizontal with respect to said vehicle,
    • a second rigid element movable about a substantially horizontal axis with respect to said first rigid element,
  • a continuous conveyor belt extending on the top and bottom of said frame, and
  • means for circulating said conveyor belt on said frame.

En position de transport, un tel convoyeur peut se replier sur le véhicule auquel il est associé de manière à présenter un encombrement minimal, compatible avec les exigences de gabarit réglementaire du véhicule.In the transport position, such a conveyor can fold on the vehicle with which it is associated so as to have a minimum footprint, consistent with the requirements of regulatory vehicle template.

En position de travail, un tel convoyeur peut être déployé de manière à livrer un matériau provenant du véhicule, tel que du béton frais, à un endroit approprié sur un chantier.In the working position, such a conveyor can be deployed to deliver material from the vehicle, such as fresh concrete, to a suitable location on a construction site.

Jusqu'à ce jour, les convoyeurs de ce type présentaient l'inconvénient de présenter un poids élevé (couramment 3 tonnes pour une longueur de transport de 16 mètres), ce qui avait pour effet de limiter leur charge utile ainsi que de nécessiter des moyens d'actionnement (vérins hydrauliques, notamment) de fort gabarit.To date, conveyors of this type had the disadvantage of having a high weight (commonly 3 tons for a transport length of 16 meters), which had the effect of limiting their payload and requiring means actuation (hydraulic cylinders, in particular) of high jig.

La présente invention a notamment pour objet de remédier à cet inconvénient.The present invention is intended to overcome this disadvantage.

On atteint ce but de l'invention avec un convoyeur adaptable sur un véhicule du type bétonnière, tel que défini par la revendication 1.This object of the invention is achieved with an adaptable conveyor on a concrete mixer type vehicle, as defined by claim 1.

La structure en caisson fermé du châssis du convoyeur selon l'invention confère à ce dernier une résistance nettement supérieure à celle d'un châssis classique.The closed box structure of the conveyor frame according to the invention gives the latter a much higher resistance than that of a conventional frame.

Ainsi, pour une dimension donnée, le convoyeur selon l'invention permet un allègement considérable du châssis.Thus, for a given dimension, the conveyor according to the invention allows a considerable lightening of the frame.

En outre, la forme en auge de la partie supérieure du caisson permet de recevoir et guider la bande transporteuse sans qu'il soit nécessaire de recourir à des systèmes de rouleaux comme c'est le cas dans les convoyeurs de la technique antérieure.In addition, the trough form of the upper part of the box allows to receive and guide the conveyor belt without the need to resort to roller systems as is the case in the conveyors of the prior art.

Ceci contribue également à l'allègement du châssis, et donc à l'augmentation de la charge utile du convoyeur et à la réduction du gabarit des moyens d'actionnement de ce convoyeur.This also contributes to the lightening of the frame, and therefore to the increase of the payload of the conveyor and the reduction of the template of the actuating means of this conveyor.

De plus, la structure en caisson permet de loger des organes tels que des conduites et des vérins hydrauliques nécessaires à l'actionnement du convoyeur, ce qui permet d'une part de protéger ces organes, et d'autre part d'obtenir une esthétique du convoyeur selon l'invention plus sobre que celle des convoyeurs de l'état de la technique.In addition, the box structure can accommodate bodies such as pipes and hydraulic cylinders necessary for the actuation of the conveyor, which allows on the one hand to protect these bodies, and on the other hand to obtain an aesthetic the conveyor according to the invention more sober than that of conveyors of the state of the art.

L'invention vise également un convoyeur tel que défini par la revendication 9.The invention also relates to a conveyor as defined by claim 9.

Suivant d'autres caractéristiques optionnelles du convoyeur selon l'invention :

  • au moins une partie des moyens hydrauliques d'actionnement dudit convoyeur sont logés à l'intérieur dudit caisson,
  • ledit caisson est formé en moins en partie dans un alliage à base d'aluminium,
  • ledit caisson est formé au moins en partie en matériaux composites,
  • ledit deuxième élément rigide est formé de deux parties l'une en caisson fermé et l'autre en tube montées télescopiques l'une dans l'autre, et dont la partie supérieure est conformée en auge de manière à recevoir et à guider ladite bande transporteuse,
  • ledit convoyeur comprend un troisième élément rigide mobile autour d'un axe sensiblement horizontal par rapport audit deuxième élément rigide,
  • ledit troisième élément rigide est formé de deux parties l'une en caisson fermé et l'autre en tube montées télescopiques l'une dans l'autre, et dont la partie supérieure est conformée en auge de manière à recevoir et à guider ladite bande transporteuse.
According to other optional features of the conveyor according to the invention:
  • at least part of the hydraulic means for actuating said conveyor are housed inside said box,
  • said casing is formed in less part of an aluminum-based alloy,
  • said casing is formed at least partly of composite materials,
  • said second rigid element is formed of two parts, one in closed box and the other in tube mounted telescopically in one another, and the part of which upper is shaped in a trough so as to receive and guide said conveyor belt,
  • said conveyor comprises a third rigid element movable about an axis substantially horizontal with respect to said second rigid element,
  • said third rigid element is formed of two parts, one in a closed box and the other in tubes mounted telescopically one inside the other, and whose upper part is shaped in a trough so as to receive and guide said conveyor belt .

La présente invention se rapporte également à un véhicule du type bétonnière équipé d'un convoyeur conforme à ce qui précède.The present invention also relates to a concrete mixer type vehicle equipped with a conveyor according to the foregoing.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lumière de la description qui va suivre et à l'examen des figures du dessin annexé dans lequel :

  • la figure 1 représente une vue de côté d'un véhicule du type bétonnière équipé d'un convoyeur en position de transport,
  • la figure 2 représente une vue de derrière de ce véhicule, le convoyeur étant déployé dans l'une de plusieurs positions de travail possibles,
  • la figure 3 est une vue en perspective de ce convoyeur ainsi que du bras de support et du portique qui le relie à la bétonnière,
  • la figure 4 est une vue en perspective du deuxième élément du châssis du convoyeur de la figure 2, pris isolément,
  • la figure 5 est une vue analogue à celle de la figure 4, une partie du deuxième élément ayant été coupée et retirée de manière à montrer la structure interne de cet élément,
  • la figure 6 est une vue en perspective du dispositif permettant de faire pivoter le convoyeur autour d'un axe sensiblement vertical,
  • la figure 7 est une vue en perspective de ce même dispositif, prise sous un autre angle et avec enlèvement d'un carter de protection, et
  • la figure 8 est une vue en perspective en coupe longitudinale de ce dispositif.
Other features and advantages of the present invention will emerge in the light of the following description and the examination of the figures of the appended drawing in which:
  • the figure 1 represents a side view of a concrete mixer type vehicle equipped with a conveyor in the transport position,
  • the figure 2 represents a rear view of this vehicle, the conveyor being deployed in one of several possible working positions,
  • the figure 3 is a perspective view of this conveyor as well as the support arm and the gantry which connects it to the concrete mixer,
  • the figure 4 is a perspective view of the second element of the conveyor chassis of the figure 2 , taken alone,
  • the figure 5 is a view similar to that of the figure 4 part of the second element having been cut and removed so as to show the internal structure of this element,
  • the figure 6 is a perspective view of the device for rotating the conveyor about a substantially vertical axis,
  • the figure 7 is a perspective view of this same device, taken from another angle and with removal of a protective cover, and
  • the figure 8 is a perspective view in longitudinal section of this device.

On se reporte à présent à la figure 1 sur laquelle on a représenté un véhicule du type bétonnière comprenant, comme cela est connu en soi, une toupie 3 permettant de malaxer un matériau tel que du béton frais.We are now going back to figure 1 on which there is shown a concrete mixer type vehicle comprising, as is known per se, a router 3 for kneading a material such as fresh concrete.

Ce véhicule 1 est équipé d'un convoyeur 5 comprenant typiquement, comme cela est visible sur les figures 1 et 2, un châssis 6 formé d'une pluralité d'éléments rigides 7, 9, 11 articulés entre eux autour d'axes sensiblement horizontaux 13, 15.This vehicle 1 is equipped with a conveyor 5 typically comprising, as is visible on the Figures 1 and 2 , a frame 6 formed of a plurality of rigid elements 7, 9, 11 hinged together about substantially horizontal axes 13, 15.

Une bande transporteuse continue 17 s'étend sur le dessus et le dessous du châssis 6 et est entraînée par des moyens de déplacement non représentés de manière à transporter du béton frais sortant de la toupie 3 jusqu'à l'extrémité libre 19 du convoyeur sur un emplacement approprié d'un chantier.A continuous conveyor belt 17 extends over the top and bottom of the frame 6 and is driven by not shown displacement means so as to transport fresh concrete leaving the router 3 to the free end 19 of the conveyor on an appropriate site location.

Le premier élément 7 de ce convoyeur est lui-même monté mobile autour d'un axe sensiblement horizontal et autour d'un axe sensiblement vertical par rapport au véhicule 1.The first element 7 of this conveyor is itself mounted to move about a substantially horizontal axis and about a substantially vertical axis relative to the vehicle 1.

Comme cela est connu en soi, des moyens de vérin 21, 23, 25 permettent de faire passer le convoyeur 5 de la position de transport visible sur la figure 1 à une position de travail visible sur la figure 2, et inversement.As is known per se, jack means 21, 23, 25 enable the conveyor 5 to be moved from the visible transport position to the figure 1 at a visible working position on the figure 2 and vice versa.

On notera ici que la position de travail représentée à la figure 2 n'est qu'une position parmi d'autres possibles, ces différentes positions de travail étant obtenues en modifiant l'orientation du châssis 6 par rapport au véhicule 1, et en modifiant les inclinaisons relatives des éléments rigides 7, 9, 11.It should be noted here that the working position represented in figure 2 is only one position among other possible, these different working positions being obtained by changing the orientation of the frame 6 relative to the vehicle 1, and by changing the relative inclinations of the rigid elements 7, 9, 11.

On se reporte à présent plus particulièrement aux figures 3 à 5 sur lesquelles on peut voir de manière plus détaillée la structure du châssis 6 du convoyeur 5.We are now referring more specifically to Figures 3 to 5 on which we can see in more detail the structure of the chassis 6 of the conveyor 5.

Comme cela apparaît clairement sur la figure 5, la structure de ce châssis est du type en caisson fermé.As it clearly appears on the figure 5 , the structure of this frame is of the closed box type.

Ceci signifie qu'au moins l'un des trois éléments 7, 9, 11 présente une section transversale creuse délimitée par quatre parois 27a, 27b, 27c, 27d.This means that at least one of the three elements 7, 9, 11 has a hollow cross section delimited by four walls 27a, 27b, 27c, 27d.

Comme on peut le voir sur la figure 5, la paroi supérieure 27d est conformée en auge, c'est-à-dire qu'elle définit une sorte de gouttière apte à recevoir et à guider la bande transporteuse non représentée sur les figures 3 à 5 mais portant la référence 17 sur la figure 1.As can be seen on the figure 5 , the upper wall 27d is shaped in the trough, that is to say it defines a kind of gutter adapted to receive and guide the conveyor belt not shown on the Figures 3 to 5 but bearing the reference 17 on the figure 1 .

Seul le deuxième élément 9 a été représenté sur les figures 4 et 5, mais il va de soi que les trois éléments 7, 9 et 11 du convoyeur peuvent présenter une structure en caisson analogue à celle qui vient d'être décrite.Only the second element 9 has been represented on the Figures 4 and 5 , but it goes without saying that the three elements 7, 9 and 11 of the conveyor may have a box structure similar to that just described.

On notera également que sur les figures 3 à 5 on a représenté un convoyeur ayant pour particularité que ses deuxième 9 et troisième 11 éléments sont télescopiques.It should also be noted that Figures 3 to 5 a conveyor is shown having the particularity that its second 9 and third 11 elements are telescopic.

Ce résultat est obtenu grâce au fait que chacun de ces éléments se compose en fait de deux parties, l'une en caisson fermé et l'autre en tube montées télescopiques l'une dans l'autre.This result is obtained thanks to the fact that each of these elements is actually made up of two parts, one in closed box and the other in tube mounted telescopic one in the other.

Bien entendu, la présente invention s'étend également à un convoyeur n'ayant qu'un seul ou pas du tout d'élément télescopique, et ayant plus ou moins de trois éléments articulés entre eux.Of course, the present invention also extends to a conveyor having only one or not at all of telescopic element, and having more or less than three elements articulated between them.

On notera avantageusement que des rouleaux 31a à 31f de support de la bande transporteuse ne sont prévus, sur la partie supérieure du convoyeur, que dans les régions d'extrémité de chacun des éléments 7 à 11.It will advantageously be noted that rollers 31a to 31f for supporting the conveyor belt are provided on the upper part of the conveyor only in the end regions of each of the elements 7 to 11.

On prévoit également des rouleaux 33a, 33b disposés sous le convoyeur pour le retour de la bande transporteuse.Rollers 33a, 33b are also provided under the conveyor for returning the conveyor belt.

Comme on peut le remarquer avantageusement sur la figure 5, des éléments de commande hydraulique 35 des mouvements télescopiques et d'articulation du convoyeur peuvent être logés dans l'espace creux défini par les caissons formant les éléments 7 à 11.As can be remarked advantageously on the figure 5 Hydraulic control elements 35 telescopic movements and articulation of the conveyor can be accommodated in the hollow space defined by the boxes forming the elements 7 to 11.

Les éléments de commande hydraulique 35 peuvent comprendre typiquement des vérins hydrauliques et des conduites de commande.Hydraulic control members 35 may typically include hydraulic cylinders and control lines.

L'essentiel de la structure des éléments 7, 9, 11 peut être formé dans un alliage métallique léger par exemple à base d'aluminium.Most of the structure of the elements 7, 9, 11 may be formed in a light metal alloy for example aluminum-based.

On peut en outre prévoir, sur les côtés de ces éléments, des ajourements susceptibles d'être occultés par des carters 37a, 37b (voir figure 4) formés dans des matériaux légers tels que des matériaux composites.It is also possible to provide, on the sides of these elements, openings that can be obscured by housings 37a, 37b (see figure 4 ) formed in lightweight materials such as composite materials.

Comme on peut le comprendre à la lumière de ce qui précède, la structure en caisson fermé du châssis 6 du convoyeur 5 confère à ce dernier une résistance nettement supérieure à celle d'un châssis classique.As can be understood in the light of the foregoing, the closed box structure of the frame 6 of the conveyor 5 gives the latter a much greater resistance than that of a conventional frame.

Ainsi, pour une dimension donnée, le convoyeur 5 peut avoir un châssis 6 nettement allégé.Thus, for a given dimension, the conveyor 5 can have a chassis 6 clearly lightened.

En outre, la forme en auge de la partie supérieure 27d (voir figure 5) du caisson permet de recevoir et guider la bande transporteuse sans qu'il soit nécessaire de recourir à des systèmes de rouleaux comme c'est le cas dans les convoyeurs de la technique antérieure.In addition, the trough shape of the upper part 27d (see figure 5 ) of the box allows to receive and guide the conveyor belt without the need to resort to roller systems as is the case in conveyors of the prior art.

On peut donc se contenter des rouleaux aux extrémités de chacun des éléments 7, 9, 11, ce qui contribue à l'allègement du châssis 6, et donc à l'augmentation de la charge utile du convoyeur 5 et à la réduction du gabarit des moyens d'actionnement 21, 23, 25 (voir figure 2) de ce convoyeur.We can therefore be satisfied with the rollers at the ends of each of the elements 7, 9, 11, which contributes to the lightening of the frame 6, and therefore to the increase of the payload of the conveyor 5 and the reduction of the template of the actuating means 21, 23, 25 (see figure 2 ) of this conveyor.

De plus, comme cela a été montré sur la figure 5, la structure en caisson permet de loger les organes 35, et ainsi de protéger ces organes tout en améliorant l'esthétique du convoyeur par rapport à un convoyeur classique.Moreover, as shown on the figure 5 , the box structure accommodates the members 35, and thus protect these organs while improving the aesthetics of the conveyor compared to a conventional conveyor.

On notera que le fait de prévoir une structure en alliage de métal léger, et/ou de prévoir des ajourements occultés par des carters en matériau composite, contribue également à l'allègement général du châssis 6 du convoyeur.Note that the fact of providing a lightweight metal alloy structure, and / or provide ajourements occulted by composite material housings, also contributes to the general lightening of the frame 6 of the conveyor.

Le convoyeur qui vient d'être décrit permet un gain de poids d'environ 500 à 700 kilos par rapport à un convoyeur classique, augmentant d'autant la charge utile disponible.The conveyor which has just been described allows a weight saving of about 500 to 700 kilos compared to a conventional conveyor, thereby increasing the payload available.

On se reporte à présent aux figures 6 à 8 sur lesquelles on a représenté un dispositif 39 permettant de faire pivoter le convoyeur qui vient d'être décrit autour d'un axe sensiblement vertical.We are now going back to Figures 6 to 8 on which there is shown a device 39 for rotating the conveyor just described about a substantially vertical axis.

Il va cependant de soi que ce dispositif 39 pourrait convenir à tout autre type de convoyeur de la technique antérieure.However, it goes without saying that this device 39 could be suitable for any other type of conveyor of the prior art.

La figure 3 indique l'emplacement de ce dispositif 39 par rapport au convoyeur 5.The figure 3 indicates the location of this device 39 with respect to the conveyor 5.

Comme cela apparaît sur cette figure, ce dispositif 39 est destiné à être interposé entre le premier élément 7 de ce convoyeur et un portique 41 destiné à être fixé sur le véhicule 1.As shown in this figure, this device 39 is intended to be interposed between the first element 7 of this conveyor and a gantry 41 intended to be fixed on the vehicle 1.

Ce dispositif 39 comprend un bras de support 43 destiné à être monté rotatif sur le portique 41 autour d'un axe sensiblement vertical A1.This device 39 comprises a support arm 43 intended to be rotatably mounted on the frame 41 around a substantially vertical axis A1.

La mise en rotation du bras de support 43 par rapport au portique 41 est effectuée au moyen d'un vérin à double effet 45 visible sur la figure 3.The rotation of the support arm 43 relative to the gantry 41 is performed by means of a double-acting cylinder 45 visible on the figure 3 .

A son autre extrémité, le bras de support 43 comporte un palier 47 d'axe A2 sensiblement vertical apte à recevoir une embase de section circulaire reliée au premier élément 7 du convoyeur.At its other end, the support arm 43 comprises a bearing 47 with a substantially vertical axis A2 capable of receiving a base of circular section connected to the first element 7 of the conveyor.

Comme cela est visible sur les figures 7 et 8, un pignon 49 de même axe A2 que celui du palier 47 est monté rotatif à l'intérieur du bras de support 43.As is visible on the Figures 7 and 8 , a pinion 49 having the same axis A2 as that of the bearing 47 is rotatably mounted inside the support arm 43.

Ce pignon 49 comporte de préférence deux rangées de dents 49a et 49b.This pinion 49 preferably comprises two rows of teeth 49a and 49b.

Le bras de support 43 comporte sur chacun de ses côtés une gorge 51 (voir figure 7).The support arm 43 has on each of its sides a groove 51 (see figure 7 ).

Dans chacune des gorges 51 s'étend la tige 53 d'un vérin respectif 55a, 55b.In each of the grooves 51 extends the rod 53 of a respective cylinder 55a, 55b.

A l'extrémité libre de chacune de ces tiges se trouvent des moyens de fixation 57 permettant de relier ces tiges 51 à une chaîne non représentée.At the free end of each of these rods are fastening means 57 for connecting these rods 51 to a chain not shown.

Cette chaîne s'étend donc entre les moyens de fixation 57 de chacun des vérins 55a, 55b, en s'enroulant autour du pignon 49.This chain therefore extends between the fixing means 57 of each of the cylinders 55a, 55b, by wrapping around the pinion 49.

Lorsque ce pignon 49 comporte deux rangées de dents 49a, 49b comme cela est représenté, la chaîne correspondante est évidemment adaptée pour coopérer à la fois avec ces deux rangées de dents.When this pinion 49 comprises two rows of teeth 49a, 49b as shown, the corresponding chain is obviously adapted to cooperate with both rows of teeth.

Comme cela est visible sur les figures 6 et 8, un carter de protection 59 formé par exemple dans un alliage métallique s'étend autour du bras de support 43 de manière à recouvrir les gorges 51 et le pignon 49, enfermant par là même la chaîne à l'intérieur du bras de support 43.As is visible on the Figures 6 and 8 a protective casing 59 formed for example in a metal alloy extends around the support arm 43 so as to cover the grooves 51 and the pinion 49, thereby enclosing the chain inside the support arm 43.

Une butée fixe 61 est disposée dans l'espace E sans chaîne (la chaîne ne s'enroule que sur la partie du pignon 49 située vers l'extérieur du bras de support 43) séparant le bras de support 43 du pignon 49, au voisinage des dents 49a, 49b de ce pignon.A fixed stop 61 is arranged in the gap E without chain (the chain only winds up on the part of the pinion 49 situated towards the outside of the support arm 43) separating the support arm 43 from the pinion 49, in the vicinity teeth 49a, 49b of this pinion.

De préférence, comme cela est représenté sur la figure 8, la butée fixe 61 est disposée entre les deux rangées de dents 49a, 49b du pignon 49.Preferably, as shown on the figure 8 , the fixed stop 61 is disposed between the two rows of teeth 49a, 49b of the pinion 49.

Comme on peut le comprendre à la lumière de ce qui précède, les deux vérins 55a, 55b sont susceptibles d'exercer des efforts de traction antagoniste sur la chaîne qui passe autour du pignon 49, permettant ainsi d'entraîner en rotation autour d'un axe sensiblement vertical A2 le premier élément 7 du convoyeur 5, et donc par là même l'ensemble de ce convoyeur.As can be understood in the light of the foregoing, the two jacks 55a, 55b are capable of exerting counter-traction forces on the chain which passes around the pinion 49, thus making it possible to drive in rotation about a substantially vertical axis A2 the first element 7 of the conveyor 5, and therefore the entire conveyor.

Les efforts de traction exercés sélectivement par les vérins 55a, 55b étant très importants, il n'est malheureusement pas exclu que la chaîne qui relie entre eux ces deux vérins en passant autour du pignon 49 puisse casser.The tensile forces exerted selectively by the cylinders 55a, 55b being very important, it is unfortunately not excluded that the chain which connects these two cylinders passing around the pinion 49 can break.

On comprendra que la présence du carter de protection 59 assure qu'en cas de rupture la chaîne reste à l'intérieur du bras de support 43, permettant ainsi d'éviter tout coup de fouet préjudiciable à la sécurité d'un opérateur.It will be understood that the presence of the protective casing 59 ensures that in case of breakage the chain remains inside the support arm 43, thus avoiding any whiplash detrimental to the safety of an operator.

On notera en outre que la butée fixe 61 permet d'éviter qu'en cas de rupture la chaîne s'enroule autour du pignon 49.It will further be noted that the fixed stop 61 makes it possible to prevent the chain from wrapping around the pinion 49 in the event of breakage.

On comprend donc que les effets combinés de cette butée 61 et du carter de protection 59 permettent de bloquer la rotation du pignon 49 en cas de rupture de la chaîne.It is therefore understood that the combined effects of this stop 61 and the protective housing 59 can block the rotation of the pinion 49 in case of breakage of the chain.

On se prémunit de la sorte contre tout mouvement de rotation incontrôlé du convoyeur 5 autour de l'axe vertical A2.This is prevented against any uncontrolled rotation of the conveyor 5 about the vertical axis A2.

Bien entendu, la présente invention n'est pas limitée au mode de réalisation décrit et représenté fourni à titre d'exemple illustratif et non limitatif.Of course, the present invention is not limited to the embodiment described and shown provided by way of illustrative and non-limiting example.

Claims (10)

  1. Conveyor (5) adapted to be mounted on a ready-mixed concrete type vehicle (1), comprising:
    - a chassis (6) comprising:
    ■ a first rigid member (7) mobile about a substantially vertical axis (A2) and a substantially horizontal axis relative to said vehicle (1),
    ■ a second rigid member (9) mobile about a substantially horizontal axis (13) relative to said first rigid member (7),
    - a continuous conveyor belt (17) extending over and under said chassis (6),
    - means for circulating said conveyor belt (17) on said chassis (6),
    characterised in that at least one of said rigid members (7, 9, 11) comprises a closed box (27a to 27d) the upper portion (27d) whereof is conformed as a trough to receive and guide said conveyor belt (17).
  2. Conveyor (5) according to claim 1, wherein at least some of the hydraulic means (35) for driving said conveyor are housed inside said box (27a to 27d).
  3. Conveyor (5) according to either of claims 1 or 2, wherein said box (27a to 27d) is formed at least in part in an aluminium-based alloy.
  4. Conveyor (5) according to any one of claims 1 to 3, wherein said box (27a to 27d) is formed at least in part in composite materials.
  5. Conveyor (5) according to any one of the preceding claims, wherein said second rigid number (9) is formed of two portions, one (9a) as a closed box and the other (9b) as a tube, mounted telescopically one within the other, and the upper portion (27d) whereof is conformed as a trough to receive and guide said conveyor belt (17).
  6. Conveyor (5) according to any one of the preceding claims, comprising a third rigid member (11) mobile about a substantially horizontal axis (15) relative to said second rigid member (9).
  7. Conveyor (5) according to claim 6, wherein said third rigid member (11) is formed of two portions, one as a closed box and the other as a tube, mounted telescopically one within the other, and the upper portion whereof is conformed as a trough to receive and guide said conveyor belt (17).
  8. Conveyor (5) according to any one of the preceding claims, wherein support rollers (31a to 31f) of the conveyor belt (17) are provided on the upper portion of said conveyor (5) only in the end regions of said at least one rigid member (7, 9, 11).
  9. Conveyor (5) adapted to be mounted on a ready-mixed concrete type vehicle (1), comprising:
    - a chassis (6) comprising:
    - a first rigid member (7) mobile about a substantially vertical axis (A2) and a substantially horizontal axis relative to said vehicle (1),
    - a second rigid member (9) mobile about a substantially horizontal axis (13) relative to said first rigid member (7),
    - a continuous conveyor belt (17) extending over and under said chassis (6),
    - means for circulating said conveyor belt (17) on said chassis (6),
    characterised in that at least one of said rigid members (7, 9, 11) comprises a closed box (27a to 27d) having an upper portion (27d) conformed as a trough to receive and guide said conveyor belt (17),
    support rollers (31a to 31f) of the conveyor belt (17) are provided on the upper portion of said conveyor (5) only in the end regions of said at least one rigid member (7, 9, 11).
  10. Ready-mixed concrete type vehicle (1) equipped with a conveyor (5) according to any one of the preceding claims.
EP05290656A 2004-03-29 2005-03-25 Conveyor adaptable on a concrete-mixer truck and truck mixer with such a conveyor Not-in-force EP1582325B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0403209A FR2868053B1 (en) 2004-03-29 2004-03-29 CONVEYOR ADAPTABLE ON A VEHICLE OF THE BETONNIERE TYPE, AND VEHICLE EQUIPPED WITH SUCH A CONVEYOR
FR0403209 2004-03-29

Publications (2)

Publication Number Publication Date
EP1582325A1 EP1582325A1 (en) 2005-10-05
EP1582325B1 true EP1582325B1 (en) 2008-05-07

Family

ID=34878452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05290656A Not-in-force EP1582325B1 (en) 2004-03-29 2005-03-25 Conveyor adaptable on a concrete-mixer truck and truck mixer with such a conveyor

Country Status (4)

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EP (1) EP1582325B1 (en)
AT (1) ATE394210T1 (en)
DE (1) DE602005006455D1 (en)
FR (1) FR2868053B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106760544B (en) * 2017-02-22 2019-01-29 广东龙越建筑工程有限公司 A kind of construction site wall cement installation apparatus
CN109469329B (en) * 2018-10-30 2021-04-23 浙江中南建设集团有限公司 Recyclable steel pipe column pumping jacking equipment and jacking interface construction method
CN109397548A (en) * 2018-12-18 2019-03-01 四川骏峰建筑工程机械有限公司 Automatic assembly type mixing plant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE759649A (en) * 1970-02-19 1971-04-30 Kornylac Co ENDLESS BELT CONVEYOR
GB1530612A (en) * 1975-04-11 1978-11-01 Lucas Electrical Ltd Conveyor
GB1603557A (en) * 1978-05-24 1981-11-25 Conveyors Yorkshire Ltd Troughed belt conveyor
CH664342A5 (en) * 1984-08-20 1988-02-29 Alfred Gamba Variable length conveyor for bulk-carrying vehicle - has endless belt over telescopic slides with servo-driven extension
FR2712575B1 (en) * 1993-11-18 1998-06-05 Thenaud Fils Ets Conveyor belt, especially for concrete mixer truck.
DE19852624A1 (en) * 1998-03-27 1999-09-30 Intermix Gmbh Conveyor with continuous conveyor belt over rollers

Also Published As

Publication number Publication date
ATE394210T1 (en) 2008-05-15
FR2868053B1 (en) 2007-10-26
FR2868053A1 (en) 2005-09-30
EP1582325A1 (en) 2005-10-05
DE602005006455D1 (en) 2008-06-19

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