FR2646413A1 - Gear motor set with angular transmission, particularly for the screw extractor equipping the base of a storage silo - Google Patents
Gear motor set with angular transmission, particularly for the screw extractor equipping the base of a storage silo Download PDFInfo
- Publication number
- FR2646413A1 FR2646413A1 FR8906011A FR8906011A FR2646413A1 FR 2646413 A1 FR2646413 A1 FR 2646413A1 FR 8906011 A FR8906011 A FR 8906011A FR 8906011 A FR8906011 A FR 8906011A FR 2646413 A1 FR2646413 A1 FR 2646413A1
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- France
- Prior art keywords
- satellite
- gear
- carried
- geared motor
- group according
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
- B65G65/466—Devices for emptying otherwise than from the top using screw conveyors arranged to be movable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
La présente invention est relative à des perfectionnements apportés aux dispositifs extracteurs habituellement incorporés à la base des silos de stockage, pour assurer l'évacuation des produits en vrac stockés dans les silos. The present invention relates to improvements made to the extractor devices usually incorporated at the base of storage silos, to ensure the evacuation of bulk products stored in the silos.
On connait par exemple par -le brevet français 2156.504 un système extracteur comportant une vis sans fin disposée horizontalement et radialement au-dessus du fond plat d'un silo cylindrique. La vis fonctionne suivant le principe de la vis d'Archimède, c'est-à-dire qu'elle est animée d'un double mouvement : - d'une part la vis tourne sur elle-même, autour de son axe géométrique longitudinal horizontal; - d'autre part elle est animée d'un mouvement de rotation autour de l'axe géométrique vertical du silo cylindrique, ce qui lui permet de balayer la surface du fond circulaire plat du silo. We know for example from French patent 2156.504 an extractor system comprising an endless screw arranged horizontally and radially above the flat bottom of a cylindrical silo. The screw works according to the principle of the Archimedes screw, that is to say that it is driven by a double movement: - on the one hand the screw turns on itself, around its longitudinal geometric axis horizontal; - On the other hand it is driven in a rotational movement around the vertical geometric axis of the cylindrical silo, which allows it to sweep the surface of the flat circular bottom of the silo.
En pratique, on prévoit donc au centre du fond plat du silo, un groupe moto-réducteur -qui commande les deux mouvements de la vis. Ce groupe est habituellement volumineux, ce qui oblige à le protéger du produit en vrac environnant à l'aide d'un déflecteur supérieur fixe. Celuici est la plupart du temps porté par une poutre diamétrale creuse dont les extrerites débouchent sur l'extérieur ou silo. Ainsi, en cas d'incident sur le groupe central, on peut y accéder en faisant cheminer un homme à l'inte- rieur de la poutre creuse, sans avoir besoin de vider préalablement le silo. In practice, there is therefore provided in the center of the flat bottom of the silo, a geared motor group -which controls the two movements of the screw. This group is usually large, which means that it has to be protected from the surrounding bulk product by means of a fixed upper deflector. This is most of the time carried by a hollow diametrical beam whose ends open onto the outside or silo. Thus, in the event of an incident on the central group, it can be accessed by having a man walk inside the hollow beam, without having to empty the silo beforehand.
On comprend que cette poutre soit sollicitée par le poids du matériau en vrac qui l'environne. Cette sollicitation est d'autant plus forte que la surface d'appui est augmentée par celle du déflecteur supérieur. It is understood that this beam is stressed by the weight of the bulk material which surrounds it. This stress is all the stronger as the bearing surface is increased by that of the upper deflector.
Enfin, on sait que l'accès au groupe par l'intérieur de la poutre est difficile, ce qui complique notablement les operations d'entretien. Finally, we know that access to the group from inside the beam is difficult, which considerably complicates maintenance operations.
La présente invention a pour but d'éviter ces inconvénients en realisant un extracteur de silo dont le grou pemotoJéducteur central est à la fois compact, robuste, et dont l'implantation ne nécessite plus la mise en place d'aucun deflecteur sur la partie centrale de la poutre a'accès. Un tel groupe moto-réaucteur, équipé d'un renvoi d'angle, est caractérisé en ce qu'il comporte en combinaison - une semelle horizontale fixe assemblée contre la face inférieure d'une ouverture pratiquée dans la paroi inférieure de la poutre fixe; - au moins un pignon satellite à axe vertical porté par la semelle; - un pignon planétaire central1 lui aussi à axe vertical, solidaire d'un pignon conique placé au-dessous de lui;; - une couronne dentée conique à axe horizontal engrenant sur le pignon conique, cet axe horizontal étant matérialisé par un arbre principal largement dimensionné et tournant près de ses deux extrémités dans des paliers portés par un carter d'enveloppe tournant, hors duquel sont disposées la ou les vis d'Archimède horizontaisde l'extracteur, calées sur l'arbre principal. The present invention aims to avoid these drawbacks by making a silo extractor whose central pemotoJéducteur grou is both compact, robust, and whose installation no longer requires the installation of any deflector on the central part of the access beam. Such a gearmotor group, equipped with a bevel gear, is characterized in that it comprises in combination - a fixed horizontal sole assembled against the underside of an opening made in the lower wall of the fixed beam; - at least one satellite pinion with vertical axis carried by the sole; - a central planetary gear1, also with a vertical axis, secured to a bevel gear placed below it; a conical ring gear with a horizontal axis meshing with the bevel gear, this horizontal axis being materialized by a main shaft which is largely dimensioned and rotating near its two ends in bearings carried by a rotating casing casing, outside of which the or the horizontal Archimedes screws of the extractor, fixed on the main shaft.
Le dessin annexé, donné à titre d'exemple non limi statif, permettra de mieux comprendre l'invention et les avantages qu'elle est susceptible de procurer. The appended drawing, given by way of non-limiting example, will allow a better understanding of the invention and the advantages which it is likely to provide.
Figure 1 est une vue générale montrant llimplanta- tion du moto-réducteur à la base d'un silo de stockage. Figure 1 is a general view showing the location of the gear motor at the base of a storage silo.
Figure 2 est une coupe transversale suivant II-II montrant la strucutre du groupe moto-réducteur. Figure 2 is a cross section along II-II showing the structure of the gear motor group.
On a montré sur la Figure I un silo cylindrique. 1 dont le fond inférieur 2 est plat. Diamétralement est fixée au-dessus du fond, une poutre 3 à section triangulaire creuse. Par ses extrémités 4 débouchant dans des ouvertures latérales de la paroi cylindrique 1, elle permet à un homme d'acceder à sa partie centrale où se trouve le groupe moto-réducteur 5 selon l'invention. Ce groupe entraine une vis d'Archimède 6 disposée radialement au-dessus du fond 2 pour extraire vers le centre, les matériaux en vrac (non représentés) qui emplissent le silo. A cylindrical silo has been shown in Figure I. 1, the bottom bottom 2 of which is flat. Diametrically is fixed above the bottom, a beam 3 with hollow triangular section. By its ends 4 opening into lateral openings of the cylindrical wall 1, it allows a man to access its central part where the geared motor group 5 according to the invention is located. This group drives an Archimedes screw 6 disposed radially above the bottom 2 to extract towards the center, the bulk materials (not shown) which fill the silo.
Le groupe 5 entraîne la vis d'Archimède 6, disposée radialement dans le silo, suivant un double mouvement, en lui-même connu - d'une part la vis 6 tourne elle-même autour de son axe longitudinal 7; - d'autre part elle est animée d'un mouvement de balayage par rotation autour de l'axe géométrique vertical 8 du silo. Group 5 drives Archimedes' screw 6, arranged radially in the silo, according to a double movement, in itself known - on the one hand the screw 6 turns itself around its longitudinal axis 7; - On the other hand it is driven by a sweeping movement by rotation around the vertical geometric axis 8 of the silo.
Selon l'invention, une ouverture 9 est découpée dans la paroi inférieure de la poutre 3. On y fixe par le bas une semelle 10. Cette dernière porte une couronne tournante 11 à denture intérieure contre laquelle engrène un premier satellite 12. Celui-ci tourne fou sur sa platine de support 13 qui est fixe sur la semelle 10. Le satellite 12 est relié par tous moyens connus, avec ou sans démultiplication, à un second satellite 14 dont l'arbre tournant 15 est porté par la platine fixe 13. Le satellite la engrène sur un pignon planétaire central 16 dont l'arbre vertical 17 est solidaire d'un pignon conique le. Celui-ci engrène sur une couronne dentée conique 19 à axe horizontal.Cet axe est matéria- lisé par un arbre principal 2C, largement dimensionné, porté près de ses extrémités par des paliers 21, 22 du carter 23, solidaire de la couronne tournante 11, et enveloppant l'ensemble. Sur une extrémité dépassante 24 de l'arbre 20 est calée la vis d'Archimède 6. According to the invention, an opening 9 is cut in the lower wall of the beam 3. A sole 10 is fixed from below. The latter carries a rotating crown 11 with internal toothing against which meshes a first satellite 12. The latter turns mad on its support plate 13 which is fixed on the sole 10. The satellite 12 is connected by any known means, with or without reduction, to a second satellite 14 whose rotating shaft 15 is carried by the fixed plate 13. The satellite meshes it with a central planetary gear 16 whose vertical shaft 17 is secured to a bevel gear. This meshes on a conical ring gear 19 with a horizontal axis. This axis is materialized by a main shaft 2C, largely dimensioned, carried near its ends by bearings 21, 22 of the casing 23, integral with the rotating crown 11 , and enveloping the whole. On an overhanging end 24 of the shaft 20 is fixed the Archimedes screw 6.
Le moteur entraînant l'ensemble du mécanisme peut être placé à divers endroits de la chaîne cinématique, par exemple - à l'intérieur du carter tournant 23; - ou à l'emplacement schématise par la référence 25, à l'intérieur de la poutre 3, sur la platine 13. The motor driving the entire mechanism can be placed at various locations in the kinematic chain, for example - inside the rotary casing 23; - or at the location shown schematically by the reference 25, inside the beam 3, on the plate 13.
Dans tous les cas, ce dispositif présente les importants avantages suivants - démultiplication assurée par les pignons satellites 12, 14; - arbre principal 20 largement dimensionné et porté par des roulements 21 et 22 très éloignés l'un de l'autre; - structure d'ensemble très robuste et d'encombrement réduit, qui permet notamment de se dispenser de tout déflecteur extérieur au-dessus de la poutre 3; - réduction ,pratiquement de moitié, des efforts de flexions auxquels la poutre 3 est soumise par la pression statique des matériaux en vrac environnants. In all cases, this device has the following important advantages - reduction ensured by the planet gears 12, 14; - main shaft 20 largely dimensioned and carried by bearings 21 and 22 very distant from each other; - overall structure very robust and compact, which allows in particular to dispense with any external deflector above the beam 3; - Reduction, almost in half, of the bending forces to which the beam 3 is subjected by the static pressure of the surrounding bulk materials.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8906011A FR2646413B1 (en) | 1989-04-28 | 1989-04-28 | MOTOR-RED UNIT WITH ANGLE TRANSMISSION, IN PARTICULAR FOR THE SCREW EXTRACTOR EQUIPPED WITH A STORAGE SILO |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8906011A FR2646413B1 (en) | 1989-04-28 | 1989-04-28 | MOTOR-RED UNIT WITH ANGLE TRANSMISSION, IN PARTICULAR FOR THE SCREW EXTRACTOR EQUIPPED WITH A STORAGE SILO |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2646413A1 true FR2646413A1 (en) | 1990-11-02 |
FR2646413B1 FR2646413B1 (en) | 1992-01-17 |
Family
ID=9381458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8906011A Expired - Lifetime FR2646413B1 (en) | 1989-04-28 | 1989-04-28 | MOTOR-RED UNIT WITH ANGLE TRANSMISSION, IN PARTICULAR FOR THE SCREW EXTRACTOR EQUIPPED WITH A STORAGE SILO |
Country Status (1)
Country | Link |
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FR (1) | FR2646413B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2686075A1 (en) * | 1992-01-15 | 1993-07-16 | Starvrac Sa | Device for discharging granular or pulverulent materials in bulk (loose form) from a circular storage silo |
FR2686076A1 (en) * | 1992-01-15 | 1993-07-16 | Starvrac Sa | Device for discharging granular or pulverulent materials from a circular storage silo |
FR2686328A1 (en) * | 1992-01-17 | 1993-07-23 | Starvrac Sa | Device for extracting pulverulent or granular materials, particularly from a circular silo |
WO2012062978A1 (en) | 2010-11-08 | 2012-05-18 | Jean-Marie Lecluse | Angle transmission device for silo extractor |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2341506A1 (en) * | 1976-02-23 | 1977-09-16 | Cantenot Paul | DEVICE FOR EXTRACTING SOLID MATERIALS |
FR2430906A1 (en) * | 1978-07-12 | 1980-02-08 | Denis Ets Sa | Silo discharge screw conveyor for pasty material - has stepped assembly with vertical leg between horizontal leg extending radially on opposite sides of centre |
FR2529535A1 (en) * | 1982-07-02 | 1984-01-06 | Boittier Expl Ets | Extractor for silos or similar. |
FR2554426A1 (en) * | 1983-11-08 | 1985-05-10 | Le Guen Michel | Device assisting the starting and controlling the stop position of a screw extractor fitted to storage cells |
EP0143057A2 (en) * | 1983-11-22 | 1985-05-29 | Laurence Cantenot | Extraction device, in particular for silos with a circular base |
-
1989
- 1989-04-28 FR FR8906011A patent/FR2646413B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2341506A1 (en) * | 1976-02-23 | 1977-09-16 | Cantenot Paul | DEVICE FOR EXTRACTING SOLID MATERIALS |
FR2430906A1 (en) * | 1978-07-12 | 1980-02-08 | Denis Ets Sa | Silo discharge screw conveyor for pasty material - has stepped assembly with vertical leg between horizontal leg extending radially on opposite sides of centre |
FR2529535A1 (en) * | 1982-07-02 | 1984-01-06 | Boittier Expl Ets | Extractor for silos or similar. |
FR2554426A1 (en) * | 1983-11-08 | 1985-05-10 | Le Guen Michel | Device assisting the starting and controlling the stop position of a screw extractor fitted to storage cells |
EP0143057A2 (en) * | 1983-11-22 | 1985-05-29 | Laurence Cantenot | Extraction device, in particular for silos with a circular base |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2686075A1 (en) * | 1992-01-15 | 1993-07-16 | Starvrac Sa | Device for discharging granular or pulverulent materials in bulk (loose form) from a circular storage silo |
FR2686076A1 (en) * | 1992-01-15 | 1993-07-16 | Starvrac Sa | Device for discharging granular or pulverulent materials from a circular storage silo |
FR2686328A1 (en) * | 1992-01-17 | 1993-07-23 | Starvrac Sa | Device for extracting pulverulent or granular materials, particularly from a circular silo |
WO2012062978A1 (en) | 2010-11-08 | 2012-05-18 | Jean-Marie Lecluse | Angle transmission device for silo extractor |
Also Published As
Publication number | Publication date |
---|---|
FR2646413B1 (en) | 1992-01-17 |
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