ITAL20110010A1

ITAL20110010A1 - DEVICE FOR THE DISTRIBUTION OF POWDERED OR GRANULAR MATERIALS, SUCH AS FERTILIZERS, SALT OR SIMILAR, WITH REVERSIBLE OPERATING DISC PALETTE PALLETS, FOR SPREADER, SIMILAR OR SIMILAR EQUIPMENT.

Info

Publication number: ITAL20110010A1
Application number: IT000010A
Authority: IT
Inventors: Duilio Paolino; Federico Paolino
Original assignee: Cosmo S R L
Priority date: 2011-11-09
Filing date: 2011-11-09
Publication date: 2013-05-10

Description

DESCRIZIONE DESCRIPTION

"Dispositivo per la distribuzione di materiali polverulenti o granulari, quali concimi, sale o simili, con palette del disco spargitore a funzionamento reversibile ,per apparecchiature spandiconcime, spandisale o simili" "Device for the distribution of powdery or granular materials, such as fertilizers, salt or the like, with reversible spreader disc blades, for fertilizer, salt spreaders or similar equipment"

TESTO DELLA DESCRIZIONE TEXT OF THE DESCRIPTION

Il presente trovato si riferisce alle apparecchiature o macchine per la distribuzione di materiali polverulenti o granulari, quali concimi, fertilizzanti minerali, sale o simili, ad esempio spandiconcime o spandisale o simili. The present invention relates to equipment or machines for distributing powdery or granular materials, such as fertilizers, mineral fertilizers, salt or the like, for example fertilizer or salt spreaders or the like.

In particolare si riferisce a apparecchiature del suddetto tipo con distribuzione per reazione centrifuga, in cui al disotto della tramoggia troncoconica o prismatica rovesciata di alimentazione dei materiale da distribuire Ã ̈ situato l'apparato distributore consistente in un organo dotato di movimento rotatorio, quale disco spargitore dal quale, tramite palette distributrici, il prodotto viene distribuito e sparso per effetto dell'energia centrifuga di cui viene caricato. In particular, it refers to equipment of the aforementioned type with distribution by centrifugal reaction, in which the distributor apparatus consisting of an organ with rotary movement, such as a spreading disc, is located below the truncated cone or prismatic inverted hopper for feeding the material to be distributed. from which, by means of distributing pallets, the product is distributed and scattered by the effect of the centrifugal energy with which it is loaded.

E' noto che tali apparecchiature o macchine possono essere trainate oppure essere a spinta, oppure anche portate dalla trattrice. It is known that such apparatuses or machines can be towed or pushed, or even carried by the tractor.

Le palette del disco spargitore devono essere sempre orientate concordemente al verso di rotazione del disco spargitore per poter assolvere alla funzione di distribuzione e il verso di rotazione varia a seconda se la macchina Ã ̈ trainata, oppure viene spinta o portata. The vanes of the spreading disc must always be oriented in accordance with the direction of rotation of the spreading disc in order to perform the distribution function and the direction of rotation varies according to whether the machine is towed, pushed or carried.

Infatti a seconda se si va in un senso oppure in senso opposto, le ruote della macchina faranno ruotare il disco spargitore in un verso, oppure in quello opposto, per cui occorrono due distinte macchine per poter assolvere alle due diverse funzioni. In fact, depending on whether you go in one direction or in the opposite direction, the wheels of the machine will rotate the spreading disc in one direction or in the opposite one, so two separate machines are needed to perform the two different functions.

Scopo dell'invenzione Ã ̈ quello di consentire con un'unica apparecchiatura o macchina di poter essere utilizzata sia trainata che spinta, potendo le palette essere reversibili, vale a dire consentire un doppio senso di funzionamento. The purpose of the invention is to allow with a single apparatus or machine to be used both towed and pushed, since the vanes can be reversible, that is to say, allow a two-way operation.

Un altro scopo del trovato Ã ̈ quello di costituire una soluzione pratica, semplice, funzionale e vantaggiosa sia come realizzazione e come impiego. Another object of the invention is to provide a practical, simple, functional and advantageous solution both in terms of construction and use.

Questi scopi vengono ottenuti, secondo l'invenzione, prevedendo un dispositivo per la distribuzione di materiali polverulenti o granulari, quali concimi, sale o simili per apparecchiature spandiconcime, spandisale o simili comprendenti un telaio di supporto di una tramoggia di alimentazione e relativi mezzi interni agitatori , ruote per gli spostamenti sul suolo, almeno un disco spargitore rotante e palette distributrici del materiale da distribuire disposte su detto disco spargitore, caratterizzata dal fatto che le palette possono essere preventivamente posizionabili dall'operatore nel corretto assetto, orientate concordemente al verso di rotazione del disco spargitore, destrorso oppure sinistrorso, prevedendo mezzi di bloccaggio amovibile delle palette a detto disco spargitore, in maniera da essere, dette palette, reversibili, vale a dire consentire un doppio senso di funzionamento. These objects are achieved, according to the invention, by providing a device for the distribution of powdery or granular materials, such as fertilizers, salt or the like for fertilizer spreaders, salt spreaders or the like comprising a support frame for a feeding hopper and relative internal agitator means. , wheels for moving on the ground, at least one rotating spreading disc and distributing blades of the material to be distributed arranged on said spreading disc, characterized by the fact that the blades can be previously positioned by the operator in the correct position, oriented in accordance with the direction of rotation of the spreading disc, right-handed or left-handed, providing means for removable locking of the vanes to said spreading disk, so as to be, said vanes, reversible, ie allowing a two-way operation.

Queste ed altre caratteristiche dell'invenzione ed i vantaggi che ne derivano appariranno meglio evidenti dalla seguente descrizione dettagliata di alcune tra le vantaggiose e varie forme di realizzazione del trovato, illustrate a semplice titolo esemplificativo, pertanto non limitativo, nelle allegate tavole di disegni, in cui: These and other characteristics of the invention and the resulting advantages will become clearer from the following detailed description of some of the advantageous and various embodiments of the invention, illustrated merely by way of example, therefore not limiting, in the attached drawings, in which:

le figg. 1 e 2 illustrano un'apparecchiatura per la distribuzione di materiale polverulento o granulare provvisto di palette distributrici secondo l'invenzione, rispettivamente in due differenti viste prospettiche; figs. 1 and 2 show an apparatus for the distribution of powdery or granular material provided with distributing vanes according to the invention, respectively in two different perspective views;

la fig. 3 illustra, in vista prospettica e in esploso, una forma esecutiva di realizzazione di palette distributrici secondo l'invenzione e relativo disco spargitore; fig. 3 shows, in perspective and exploded view, an embodiment of distribution vanes according to the invention and relative spreading disc;

le figg- 4 e 5 illustrano un'altra forma esecutiva di realizzazione di paletta distributrice secondo l'invenzione, rispettivamente in vista prospettica e dall'alto; Figures 4 and 5 illustrate another embodiment of the distribution vane according to the invention, respectively in perspective and top view;

le figg. 6 e 7 si riferiscono ad un'ulteriore forma esecutiva di realizzazione di paletta distributrice secondo l'invenzione, illustrata rispettivamente in vista prospettica e dall'alto; le figg. 8 e 9 raffigurano un'altra forma esecutiva di realizzazione di paletta distributrice secondo l'invenzione, illustrata rispettivamente in vista prospettica e dall'alto; la fig. 10 illustra, in vista prospettica e in esploso un'ulteriore forma esecutiva di realizzazione di palette distributrici secondo l'invenzione e relativo disco spargitore. Con riferimento alle figg- 1 e 2 viene illustrata un'apparecchiatura per la distribuzione di materiale polverulento o granulare, quale concime, sale o simili, ad esempio spandiconcime, spandisale o simili, provvista di palette 200 in una forma esecutiva di realizzazione secondo l'invenzione. figs. 6 and 7 refer to a further embodiment of the distribution vane according to the invention, shown respectively in perspective and top views; figs. 8 and 9 show another embodiment of a distribution vane according to the invention, shown respectively in perspective and top views; fig. 10 illustrates, in perspective and exploded view, a further embodiment of the distribution vanes according to the invention and relative spreading disc. With reference to Figures 1 and 2, an apparatus is shown for the distribution of powdery or granular material, such as fertilizer, salt or the like, for example fertilizer spreaders, salt spreaders or the like, provided with vanes 200 in an embodiment according to the invention.

Detta apparecchiatura comprende un telaio S di supporto di una tramoggia T di alimentazione e relativi mezzi interni agitatori A, ruote R per gli spostamenti sul suolo, almeno un disco spargitore rotante 10 sul quale sono destinate ad essere posizionate le palette distributrici 200. Said apparatus comprises a frame S for supporting a feeding hopper T and relative internal agitator means A, wheels R for moving on the ground, at least one rotating spreading disc 10 on which the distributing vanes 200 are intended to be positioned.

L'apparecchiatura illustrata comprende inoltre un gruppo moltiplicatore M di giri delle ruote R disposto sull'assale ed un timone I. The illustrated apparatus further comprises a wheel speed multiplier unit M arranged on the axle and a drawbar I.

Detto timone I puÃ² essere utilizzato sia per il traino dell'apparecchiatura, ad esempio agganciandolo a trattore, e in tal caso il disco spargitore 10 ruoterÃ in un senso, oppure puÃ² essere utilizzato come mezzo di presa allorchÃ© detta apparecchiatura viene utilizzata a spinta, manualmente dall'operatore stesso, anzichÃ© trainata e in tal caso il disco spargitore 10 ruoterÃ in senso contrario al precedente. Said rudder I can be used both for towing the equipment, for example by hooking it to a tractor, and in this case the spreading disc 10 will rotate in one direction, or it can be used as a gripping means when said equipment is used by pushing, manually by the operator himself, instead of towed and in this case the spreading disc 10 will rotate in the opposite direction to the previous one.

Secondo una caratteristica peculiare del trovato la paletta 200 puÃ² essere preventivamente posizionata dall'operatore (fig. According to a peculiar characteristic of the invention, the pallet 200 can be previously positioned by the operator (fig.

3), orientata concordemente al verso di rotazione del disco spargitore 10, destrorso oppure sinistrorso, prevedendo mezzi di bloccaggio amovibile 11 e 12 delle palette 200 rispetto a detto disco spargitore 10, in maniera da essere, dette palette 200, reversibili, vale a dire consentire un doppio senso di funzionamento. 3), oriented in accordance with the direction of rotation of the spreading disc 10, right-handed or left-handed, providing means for the removable locking 11 and 12 of the vanes 200 with respect to said spreading disk 10, so as to be, said vanes 200, reversible, that is to say allow a double sense of operation.

Dette palette 200 sono posizionabili radialmente sul disco spargitore 10 e sono previste almeno due palette 200. Nella forma esecutiva illustrata sono state previste due palette 200, ma in altre forme esecutive non illustrate si potrÃ prevedere un differente numero di tali palette 200, ad esempio in numero di tre, quattro, ecc., preferibilmente angolarmente equidistanziate. Said vanes 200 can be positioned radially on the spreading disc 10 and at least two vanes 200 are provided. In the illustrated embodiment two vanes 200 have been provided, but in other embodiments not illustrated, a different number of said vanes 200 can be provided, for example in number of three, four, etc., preferably angularly equidistant.

Dette palette 200 sono conformate sostanzialmente a profilato con sezione ad U, con ciascuna delle due alette 201 e 202 destinata, ogni volta, ad appoggiare sulla superficie del disco spargitore 10, con almeno un'aletta 201 o 202 provvista di uno o piÃ¹ fori passanti 203, destinati a coincidere con fori passanti 101 previsti sul disco spargitore 10, in maniera da consentire il passaggio di organi di bloccaggio al disco spargitore 10, preferibilmente per avvitamento, quali viti 11 o simili e relativi dadi o bulloni 12. Said vanes 200 are substantially shaped like a U section, with each of the two fins 201 and 202 destined, each time, to rest on the surface of the spreading disc 10, with at least a fin 201 or 202 provided with one or more through holes 203, intended to coincide with through holes 101 provided on the spreading disc 10, so as to allow the passage of locking members to the spreading disc 10, preferably by screwing, such as screws 11 or the like and related nuts or bolts 12.

Dette palette 200 saranno orientate , ogni volta, con la parte libera tra le due alette 201 e 202 orientata concordemente al verso di rotazione del disco spargitore 10, in maniera da poter assolvere alla funzione distributrice. Said vanes 200 will be oriented, each time, with the free part between the two fins 201 and 202 oriented in accordance with the direction of rotation of the spreading disc 10, so as to be able to perform the distributing function.

I lati frontali anteriori delle alette 201 e 202 presentano una profilatura arcuata, a concavitÃ rivolta verso l'esterno, in maniera da consentire un doppio flusso, durante la distribuzione, vale a dire di consentire il flusso in entrambi i versi di funzionamento del disco spargitore 10, allorchÃ© le palette 200 vengono invertite di posizionamento nel caso di inversione del verso di rotazione del disco spargitore 10. The front front sides of the fins 201 and 202 have an arched profiling, with a concavity facing outwards, in order to allow a double flow, during distribution, i.e. to allow the flow in both directions of the spreading disc. 10, when the vanes 200 are reversed in positioning in the event of inversion of the direction of rotation of the spreading disc 10.

Nella forma esecutiva illustrata in fig. 3 le palette distributrici 200 presentano una delle due alette 201 o 202 con due fori 203 laterali passanti, per il passaggio degli organi di bloccaggio amovibile al disco spargitore 10. In the embodiment illustrated in fig. 3, the distributing vanes 200 have one of the two fins 201 or 202 with two lateral through holes 203, for the passage of the removable locking members to the spreading disc 10.

Secondo una forma esecutiva di realizzazione illustrata nelle figg. 4 e 5, le palette distributrici 300 presentano entrambe le due alette 301 e 302 con due fori laterali ciascuna, rispettivamente 303 e 304, per il passaggio degli organi di bloccaggio amovibile al disco spargitore 10.1 due fori superiori 303 possono anche servire vantaggiosamente per l'introduzione di cacciavite, allorchÃ© le viti 11 applicate sull'aletta inferiore 302 presentano una testa con taglio. According to an embodiment illustrated in figs. 4 and 5, the distributing vanes 300 have both the two fins 301 and 302 with two lateral holes each, respectively 303 and 304, for the passage of the removable locking members to the spreading disc 10.1 two upper holes 303 can also be used advantageously for the introduction of a screwdriver, when the screws 11 applied to the lower fin 302 have a head with a cut.

.Secondo un'altra forma esecutiva di realizzazione illustrata nelle figg. 6 e 7, le palette 400 sono profilate con sezione ad U e sagomate arcuate secondo tangenti ad angoli non superiori a 45°, con almeno un'aletta 401 o 402 con almeno un foro passante 403. According to another embodiment illustrated in figs. 6 and 7, the vanes 400 are profiled with a U-section and arched shaped according to tangents at angles not exceeding 45 °, with at least a fin 401 or 402 with at least one through hole 403.

Secondo un'ulteriore forma esecutiva di realizzazione illustrata nelle figg. 8 e 9, le palette 500 sono profilate con sezione ad U e sagomate a V con i due tratti inclinati secondo angoli non superiori a 45°, con almeno un'aletta 501 o 502 con almeno un foro passante 503. According to a further embodiment illustrated in figs. 8 and 9, the vanes 500 are U-shaped and V-shaped with the two portions inclined at angles not exceeding 45 °, with at least one fin 501 or 502 with at least one through hole 503.

Nella forma esecutiva di realizzazione illustrata nella fig. In the embodiment illustrated in fig.

10, le palette 600 possono essere orientate nel corretto assetto concordemente al verso di rotazione del disco spargitore 10, destrorso o sinistrorso, grazie ad una rotazione di 180° della paletta 600 attorno ad un asse verticale costituito da un perno a vite 11 passante in un foro centrale 604 di un'aletta 602 della paletta 600 e in relativo foro passante 102 nel disco spargitore 10, con bloccaggio a mezzo di dado o bullone 12 impegnantesi nel perno a vite 11 e definitivo bloccaggio amovibile sul disco spargitore 10, grazie a due piccole bugne 103 o risalti previsti su tale disco 10, destinati ad impegnarsi entro due riscontri quali tacche o aperture 603 sull'aletta 602 rivolta verso il disco spargitore 10. 10, the vanes 600 can be oriented in the correct position in accordance with the direction of rotation of the spreading disc 10, right or left, thanks to a 180 ° rotation of the pallet 600 around a vertical axis consisting of a screw pin 11 passing through a central hole 604 of a flap 602 of the pallet 600 and in the relative through hole 102 in the spreading disc 10, with locking by means of a nut or bolt 12 engaging in the screw pin 11 and definitive removable locking on the spreading disc 10, thanks to two small bosses 103 or projections provided on said disc 10, intended to engage within two abutments such as notches or openings 603 on the fin 602 facing the spreading disc 10.

Secondo ulteriori forme esecutive di realizzazione non illustrate le palette distributrici 200, 300, 400, 500, 600 possono essere vincolate al disco spargitore 10 con bloccaggio amovibile ad incastri. According to further embodiments not shown, the distributing vanes 200, 300, 400, 500, 600 can be fastened to the spreading disc 10 with removable interlocking locking.

Da quanto precedentemente esposto Ã ̈ pertanto evidente che l'invenzione non Ã ̈ limitata alle forme esecutive testÃ© descritte ed illustrate a semplice titolo di esempi non limitativi, ma potrÃ essere variata e modificata, nel suo complesso e nei singoli particolari, a seconda delle specifiche esigenze e convenienze di fabbricazione e di impiego, nell'ambito degli equivalenti tecnici e funzionali, senza per questo abbandonare il principio informatore sopra sposto ed a seguito rivendicato. From the foregoing, it is therefore evident that the invention is not limited to the embodiments hereinafter described and illustrated merely by way of non-limiting examples, but may be varied and modified, as a whole and in individual details, depending on the specific requirements and convenience of manufacture and use, in the context of technical and functional equivalents, without thereby abandoning the guiding principle set forth above and claimed hereinafter.

Claims

AMENDED CLAIMS MAIN REQUEST 1) - Device for the distribution of powdery or granular materials, such as fertilizers, salt or the like for fertilizer spreaders, salt spreaders or the like comprising a support frame (S) for a hopper (T) for feeding the material to be spread, which hopper (T) has internal stirring means (A) for said material, - which frame (S) is equipped with wheels (R) to allow the movement of the device or equipment or machine for distributing materials equipped with said device, on the ground, - at least one rotating spreading disc (10) and distributing vanes (200) of the material to be distributed arranged on said spreading disc (10) characterized in that: said spreading disc (10) rotates in one direction or the other according to the direction of rotation of said wheels (R), it being possible to provide that said device or said apparatus provided with said device is pushed or towed during use, and since the vanes (200) can be previously positioned by the operator in the correct position, oriented in accordance with the direction of rotation of the spreading disc (10), right-handed or left-hand, providing means for the removable locking (11,12) of the vanes (200) to said spreading disc (10), in such a way as to be, said vanes (200), reversible, that is to say to allow a two-way operation. 2) - Device according to the preceding claim, characterized in that the vanes (200) can be positioned radially on the spreading disc (10). 3) - Device according to any one or more of the preceding claims, characterized in that the vanes (200) are at least two. 4) - Device according to any one or more of the preceding claims, characterized in that the vanes (200) are substantially shaped like a U-shaped section, with each of the two fins (201) and (202) destined, each time, to rest on the surface of the spreading disc (10), with at least one fin (201) or (202) provided with one or more through holes (203), intended to coincide with through holes (101) provided on the spreading disc (10), so as to allow the passage of locking members (11,12) to the spreading disc (10), preferably by screwing such as screws (11) or the like and relative nuts or tightening bolts (12), said resulting oriented blades (200) , each time, with the free part between the two fins (201) and (202) oriented in accordance with the direction of rotation of the spreading disc (10), so as to be able to perform the distributing function. 5) - Device according to Claim 4, characterized in that the vanes (200) have the front front sides of the upper (201) and lower (202) fins, with an arched profile, with a concavity facing outwards, in a manner to allow a double flow, during the distribution, i.e. to allow the distribution flow in both directions of operation of the spreading disc (10), when the vanes (200) are reversed in positioning in the event of inversion of the direction of rotation of the spreading disc (10). 6) - Device according to Claims 4 and 5, in which, according to an embodiment, the vanes (200) have at least one of the two fins (201) and (202) with two lateral through holes (203), for the passage of the removable locking members (11, 12) to the spreading disc (10). 7) - Device according to Claims 4 and 5, in which, according to an embodiment, the vanes (300) have both the two fins (301) and (302) with two lateral through holes each, respectively (303) and (304) for the passage of the removable locking members (11, 12) to the spreading disc (10). 8) - Device according to any one or more of the preceding claims, characterized in that, according to an embodiment, the blades (400) are profiled with a U-shaped section and arched according to tangents at angles not exceeding 45 °, with at least one fin (401) or (402) with at least one through hole (403). 9) - Device according to any one or more of the preceding claims, characterized in that, according to an embodiment, the vanes (500) are U-shaped and V-shaped with the two sections inclined at angles not exceeding 45 °, with at least one fin (501) or (502) with at least one through hole (503). 10) - Device according to any one or more of the preceding claims, in which, according to an embodiment, the vanes (600) can be oriented in the correct position according to the direction of rotation of the spreading disc (10), right or left, thanks to a 180 ° rotation of the vane (600) around a vertical axis consisting of a screw pin (11) passing through a central hole (604) of a vane (601) or (602) of the vane (600) and in its through hole (102) in the spreading disc (10), with locking by means of a nut or bolt (12) engaging in the screw pin (11) and definitive removable locking on the spreading disc (10) thanks to two small bosses (103) or projections provided on said disc (10), intended to engage within two abutments such as notches or openings (603) on the fin (601) or (602) facing the spreading disc (10). 11) - Device according to any one or more of the preceding claims, in which, according to an embodiment, the distributing vanes (200, 300, 400, 500, 600) are fastened to the spreading disc (10) with removable interlocking locking. 12) - Device according to any one or more of the preceding claims, in which a wheel speed multiplier unit (M) is provided (R) arranged on the axle. 13) - Apparatus or machine for the distribution of powdery or granular materials, such as fertilizer or salt or the like, provided with a dispensing device for such materials, made according to any one of the preceding claims. AMENDED CLAIMS 1) - Device for the distribution of powdery or granular materials, such as fertilizers, salt or the like for fertilizer spreaders, spreaders or the like comprising a support frame (S) of a hopper (T) for feeding the material to be spread, which hopper (T) has internal stirring means (A) for said material, - which frame (S) is equipped with wheels (R) to allow the movement of the device or equipment or machine for distributing materials equipped with said device, on the ground, - at least one rotating spreading disc (10) and distributing vanes (200) of the material to be distributed arranged on said spreading disc (10) characterized in that: said spreading disc (10) rotates in one direction or the other according to the direction of rotation of said wheels (R), it being possible to provide that said device or said apparatus provided with said device is pushed or towed during use, and since the vanes (200) can be previously positioned by the operator in the correct position, oriented in accordance with the direction of rotation of the spreading disc (10), right-handed or left-hand, providing means for the removable locking (11,12) of the vanes (200) to said spreading disc (10), in such a way as to be, said vanes (200), reversible, i.e. to allow a double sense of operation, which vanes (200) are substantially shaped like a U-section profile, with each of the two fins (201) and (202) destined, each time, to rest on the surface of the spreading disc (10), and have the front front sides of the upper (201) and lower (202) fins, with an arched profiling, with a concavity facing outwards, so as to allow a double flow, during distribution, i.e. to allow the distribution flow in both directions of operation of the spreading disc (10), when the vanes (200) are reversed in positioning in the event of reversal of the direction of rotation of the spreading disc (10). 2) - Device according to the preceding claim, characterized in that the vanes (200) can be positioned radially on the spreading disc (10). 3) - Device according to any one or more of the preceding claims, characterized in that the vanes (200) are at least two. 4) - Device according to any one or more of the preceding claims, characterized in that the vanes (200) are substantially shaped like a U-shaped section, with each of the two fins (201) and (202) destined, each time, to rest on the surface of the spreading disc (10), with at least one fin (201) or (202) provided with one or more through holes (203), intended to coincide with through holes (101) provided on the spreading disc (10), so as to allow the passage of locking members (11,12) to the spreading disc (10), preferably by screwing such as screws (11) or the like and relative nuts or tightening bolts (12), said resulting oriented blades (200) , each time, with the free part between the two fins (201) and (202) oriented in accordance with the direction of rotation of the spreading disc (10), so as to be able to perform the distributing function. 5) - Device according to Claim 4, in which, according to an embodiment, the vanes (200) have at least one of the two fins (201) and (202) with two lateral through holes (203), for the passage of removable locking members (11, 12) to the spreading disc (10). 6) - Device according to Claims 4, in which, according to an embodiment, the vanes (300) have both the two fins (301) and (302) with two lateral through holes each, respectively (303) and (304 ) for the passage of the removable locking devices (11, 12) to the spreading disc (10). 7) - Device according to any one or more of the preceding claims, characterized in that, according to an embodiment, the blades (400) are profiled with a U-shaped section and arched according to tangents at angles not exceeding 45 °, with at least one fin (401) or (402) with at least one through hole (403). 8) - Device according to any one or more of the preceding claims, characterized in that, according to an embodiment, the vanes (500) are U-shaped and V-shaped with the two sections inclined at angles not exceeding 45 °, with at least one fin (501) or (502) with at least one through hole (503). 9) - Device according to any one or more of the preceding claims, in which, according to an embodiment of embodiment, the vanes (600) can be oriented in the correct position according to the direction of rotation of the spreading disc (10), right or left, thanks to a 180 ° rotation of the vane (600) around a vertical axis consisting of a screw pin (11) passing through a central hole (604) of a vane (601) or (602) of the vane (600) and in its through hole (102) in the spreading disc (10), with locking by means of a nut or tightening bolt (12) engaging in the screw pin (11) and definitive removable locking on the spreading disc (10) thanks to two small bosses (103) or projections provided on said disc (10), intended to engage within two abutments such as notches or openings (603) on the fin (601) or (602) facing the spreading disc (10). 10) - Device according to any one or more of the preceding claims, in which, according to an embodiment, the distributing vanes (200, 300, 400, 500, 600) are fastened to the spreading disc (10) with removable interlocking locking. 11) - Device according to any one or more of the preceding claims, in which a wheel speed multiplier unit (M) is provided (R) arranged on the axle. 12) - Apparatus or machine for the distribution of powdery or granular materials, such as fertilizer or salt or the like, provided with a dispensing device for such materials, made according to any one of the preceding claims.