EP0032861B1 - Planing machine - Google Patents

Planing machine Download PDF

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Publication number
EP0032861B1
EP0032861B1 EP81400059A EP81400059A EP0032861B1 EP 0032861 B1 EP0032861 B1 EP 0032861B1 EP 81400059 A EP81400059 A EP 81400059A EP 81400059 A EP81400059 A EP 81400059A EP 0032861 B1 EP0032861 B1 EP 0032861B1
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EP
European Patent Office
Prior art keywords
machine
sun
tool
shaft
wood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81400059A
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German (de)
French (fr)
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EP0032861A2 (en
EP0032861A3 (en
Inventor
Jean-Claude Maret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peugeot Outillage Electrique SA
Original Assignee
Peugeot Outillage Electrique SA
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Publication date
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Priority to AT81400059T priority Critical patent/ATE7118T1/en
Publication of EP0032861A2 publication Critical patent/EP0032861A2/en
Publication of EP0032861A3 publication Critical patent/EP0032861A3/en
Application granted granted Critical
Publication of EP0032861B1 publication Critical patent/EP0032861B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/12—Arrangements for feeding work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306216—Randomly manipulated, work supported, or work following device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306216—Randomly manipulated, work supported, or work following device
    • Y10T409/306496—Randomly manipulated, work supported, or work following device with work follower

Definitions

  • the present invention relates to machines for working wood pieces such as planers and planers, comprising a rotary tool composed of a tool holder provided with protruding axial blades and intended to machine at least one surface of the piece of wood to work, this tool being flanked, input side and output side respectively, of two rollers for driving the workpieces, these rollers having axes parallel to that of the tool and being rotatably coupled thereto by the via a planetary gear reduction mechanism.
  • a machine of this type is described in CH-A-103 483.
  • the reduction mechanism is mounted on the lower part of the machine and coupled by belt and chain transmissions respectively to the tool and to the rollers. drive.
  • the reaction element of the planetary gear is coupled to the machine frame by passing through a clutch coupling which is used to control the rotation of the rollers.
  • the object of the invention is to simplify this known construction and to provide a robust and compact machine whose planetary gear reduction mechanism can be manufactured at the lowest cost.
  • the subject of the invention is therefore a machine for shaping of the type defined above, characterized in that one of the planetary wheels of the planetary gear is mounted directly on the shaft of one of the drive rollers, being integral of the latter and in that the other planetary is a reaction planetary which is mounted idly on this same shaft and immobilized in rotation relative to the frame of the machine while being able to slide radially therein to allow application elasticity of the roller on the workpiece.
  • the reduction mechanism being mounted directly on the axis of one of the rollers eliminates chain transmission and at the same time easily absorbs the adaptations of the position of the roller driven by the mechanism to the different thicknesses of treated wood.
  • the invention is applied, by way of example to a planer.
  • the characteristics of the invention can be applied to any wrinkling machine other than a planer, such as a jointer for example.
  • Figs. 1 and 2 partially show a planer 1 comprising a frame 2 in the sides 3 of which a planing tool 4 is rotatably mounted in a manner known per se.
  • This tool is of the type comprising a tool holder provided with projecting axial blades (not shown).
  • a passage corridor 5 in which can move a piece of wood PB to work.
  • the bottom of the corridor is formed by a support 6 of adjustable height.
  • Fig. 1 shows that the tool 4 projects into the corridor 5, the part being planed and thickened by progressing in the corridor in the direction of the arrow F (fig. 1
  • rollers 7 and 8 are provided, placed on either side of the tool 4, their axes being parallel to the axis of the latter.
  • the rollers 7 and 8 protrude slightly in the passage 5 and can thus come into contact with the upper surface of the part PB upstream and downstream of the working area of the tool 4.
  • the roller 7 is placed at the entrance while the roller 8 is placed at the exit of the corridor 5.
  • the tool 4 is driven by an electric motor, for example (not shown) ensuring a high speed drive of the tool and the shaft 4a (fig. 2) on which the latter is mounted; the drive speed can be for example 6000 rpm.
  • the shaft 4a carries at its free end a drive pulley 9 which is fixed to this shaft by means of a screw 10. On this pulley 9 passes a drive belt 11 which is engaged with a reduction mechanism 12 which has for this purpose an annular groove 13 (see FIGS. 3 and 6).
  • the rollers 7 and 8, one of which is preferably notched, are mounted on shafts 7a and 8a suspended in bearings 14 resiliently mounted in the frame 1.
  • FIG. 3 schematically represents such a bearing 14 and its elastic suspension is symbolized here by a spring 15 attached to the upper surface of the frame 2.
  • the shaft 7a comprises, on the side of the reduction mechanism 12, a stepped extension 16 at the free end of which is provided a pulley 17 which is stopped by a screw 18 engaged in a threaded hole 19 of this extension 16.
  • the shaft 8a is extended laterally relative to the frame 1 and carries at its end, in the same way, a pulley 20 of the same diameter as the pulley 17, a drive belt 21 passing over these pulleys.
  • the pulley 20 is stopped on the shaft 8a on which it is wedged by a screw 22 engaged in a threaded hole (not visible in the drawings) of the shaft 8a.
  • the extension 16 of the shaft 7a comprises, beyond the bearing 14, two bearing surfaces 23 and 24, the bearing surface 24 in particular receiving the pulley 17.
  • the extension 16 has two annular radial shoulders 25 and 26 respectively.
  • On the bearings 23 and 24 are mounted a fixed or reaction sun gear 27 and a rotary sun gear 28 constituting the output of the planetary gear forming the reduction mechanism 12.
  • the sun gear 27 comprises a cylindrical sleeve 29 and a pinion 30, the sleeve 29 swiveling in a bearing 31.
  • the latter is mounted in a central hole 32 of a radial flange 33 of the half 34a of a drum 35 which forms the planet carrier of the reduction mechanism 12.
  • This drum thus comprises two halves 34a and 34b which are identical, apart from the fact that the half 34b comprises the groove 13 in which is engaged the strap 11 ensuring the drive of this planet carrier.
  • the two halves of the latter are fitted into one another by means of lugs 36 which project axially from the edges opposite the two halves of the drum 35.
  • the sun gear 28 comprises a sleeve 37 and a pinion 38, this sun gear being provided with an axial keying groove 39 ensuring by means of a key 40 the rotational coupling of this pinion 28 with the shaft 7a.
  • the sleeve 37 has at its end opposite to the pinion 38, two flats 41 cooperating with locking legs for rotation of the pulley 17.
  • the pinions 30 and 38 have teeth of identical module but in different numbers for example.
  • the pinion. 30 has 31 teeth, while the pinion 38 has only 30.
  • the two pinions 30 and 38 mesh with a single satellite 42 journalling in the halves 34a and 34b of the drum 35.
  • these two halves have aligned holes 43 in which are mounted the bearing surfaces 42a of a satellite 42 by the needle roller intermediate 44.
  • the sleeve 29 of the sun gear 27 has at its end opposite the pinion 30 two flats 45 for immobilizing the sun gear in rotation. These flats 45 cooperate with the straight edges of a rectangular hole 46 of a guide plate 47 mounted laterally on the frame 1 in front of a hole 48 formed in the side wall of this frame and through which the shaft 7a of the roller passes. 7.
  • the reduction mechanism 12 is completely cantilevered on the shaft 7a of the roller 7 and that it can perform vertical movements with this roller as a function of the variation in thickness of the pieces of wood to be worked, because the sleeve 29 is slidably mounted vertically in the plate 47.
  • the reduction ratio of the planetary gear is comparatively very high and thanks to the presence of this reducer, it is therefore possible to obtain the speed reduction necessary between the tool 4 and the rollers 7 and 8, for a minimum size of this reducer which does not never exceed the upper plane 2 of the machine in height.
  • the reduction ratio can be easily chosen by the difference in the numbers of teeth of the gears 30 and 38.
  • the planetary gear mechanism also allows the input and output of the reduction gear to be aligned in alignment with the same axis, which also contributes to reducing the bulk.
  • the mechanism being housed in a fully closed drum which forms an integral part of the reducer, the gear train is protected from dust and can be easily greased once and for all.
  • the reduction mechanism can be made of a molded material, for example, a light alloy such as Zamac, or possibly plastic.
  • a light alloy such as Zamac
  • the two halves of the drum 35 are of identical shape to the molding.
  • a particular advantage of the presence of the planetary gear reduction mechanism results from the reversal of the direction of rotation that it provides between its input and its output.
  • This particular characteristic makes it possible to mount the reduction gear directly on the shaft of a drive roller which thus constitutes its direct output.
  • a special step must be provided in the reduction chain (sprockets and belts, for example) to obtain this reversal of direction of rotation.
  • This characteristic also makes it possible to connect directly by an elastic belt (the belt 11 in this case) the inlet of the reducer to the shaft of the tool 4.

Abstract

The machine for trimming pieces of wood, such as a surfacing, planing or other machine, comprises a rotary tool having a tool holder provided with projecting axially extending blades and adapted to machine at least one surface of the piece of wood. This tool has, on the input side and output side thereof, two driving rollers for driving the pieces of wood. These rolls have axes parallel to the axis of the tool and are connected to rotate with the latter by a speed reducing mechanism. The mechanism employs a sun and planet train one of the sun wheels of which is mounted directly on the shaft of one of the driving rollers. Another sun wheel is freely rotatable on this shaft and is prevented from rotating relative to the frame of the machine.

Description

La présente invention est relative aux machines de corroyage de pièces de bois telles que les dégauchisseuses et les raboteuses, comportant un outil rotatif composé d'un porte-outil muni de lames axiales saillantes et destiné à usiner au moins une surface de la pièce de bois à travailler, cet outil étant flanqué, côté entrée et côté sortie respectivement, de deux rouleaux d'entraînement des pièces à travailler, ces rouleaux ayant des axes parallèles à celui de l'outil et étant couplés en rotation à celui-ci par l'intermédiaire d'un mécanisme réducteur à train planétaire.The present invention relates to machines for working wood pieces such as planers and planers, comprising a rotary tool composed of a tool holder provided with protruding axial blades and intended to machine at least one surface of the piece of wood to work, this tool being flanked, input side and output side respectively, of two rollers for driving the workpieces, these rollers having axes parallel to that of the tool and being rotatably coupled thereto by the via a planetary gear reduction mechanism.

Une machine de ce type est décrite dans le CH-A-103 483. Dans ce cas, le mécanisme réducteur est monté sur la partie inférieure de la machine et couplée par des transmissions à courroie et à chaîne respectivement à l'outil et aux rouleaux d'entraînement. Par ailleurs, l'élément de réaction du train planétaire est couplé au bâti de la machine en traversant un accouplement à crabots qui sert à commander la mise en rotation des rouleaux.A machine of this type is described in CH-A-103 483. In this case, the reduction mechanism is mounted on the lower part of the machine and coupled by belt and chain transmissions respectively to the tool and to the rollers. drive. Furthermore, the reaction element of the planetary gear is coupled to the machine frame by passing through a clutch coupling which is used to control the rotation of the rollers.

Cette disposition du mécanisme réducteur conduit à un encombrement important et nécessite l'utilisation de chaînes et de courroies qui compliquent considérablement le dispositif d'entraînement de l'outil et des rouleaux.This arrangement of the reducing mechanism leads to a large bulk and requires the use of chains and belts which considerably complicate the drive device of the tool and the rollers.

L'invention a pour but de simplifier cette construction connue et de fournir une machine robuste et compacte dont le mécanisme réducteur à train planétaire peut être fabriqué au moindre coût.The object of the invention is to simplify this known construction and to provide a robust and compact machine whose planetary gear reduction mechanism can be manufactured at the lowest cost.

L'invention a donc pour objet une machine de corroyage du type défini ci-dessus, caractérisée en ce que l'un des planétaires du train planétaire est monté directement sur l'arbre de l'un des rouleaux d'entraî- nementen étant solidaire de celui-ci et en ce que l'autre planétaire est un planétaire de réaction qui est monté fou sur ce même arbre et immobilisé en rotation par rapport au bâti de la machine tout en pouvant coulisser radialement dans celui-ci pour permettre l'application élastique du rouleau sur la pièce à travailler.The subject of the invention is therefore a machine for shaping of the type defined above, characterized in that one of the planetary wheels of the planetary gear is mounted directly on the shaft of one of the drive rollers, being integral of the latter and in that the other planetary is a reaction planetary which is mounted idly on this same shaft and immobilized in rotation relative to the frame of the machine while being able to slide radially therein to allow application elasticity of the roller on the workpiece.

Le mécanisme réducteur étant monté directement sur l'axe de l'un des rouleaux supprime une transmission par chaîne et permet en même temps d'absorber facilement les adaptations de la position du rouleau entraîné par le mécanisme aux différentes épaisseurs de bois traité.The reduction mechanism being mounted directly on the axis of one of the rollers eliminates chain transmission and at the same time easily absorbs the adaptations of the position of the roller driven by the mechanism to the different thicknesses of treated wood.

Dans ce qui suit, l'invention est exposée plus en détail à l'aide de dessins représentant seulement un mode d'exécution. Sur ces dessins:

  • la fig. 1 représente une vue en élévation partielle d'une raboteuse dans laquelle les caractéristiques de l'invention sont incorporées;
  • la fig. 2 est une vue en plan de la partie de la raboteuse représentée sur la fig. 1;
  • lafig. 3 est une vue en coupe et en élévation du mécanisme réducteur utilisé dans la raboteuse des fig. 1 et 2;
  • la fig. 4 est une vue en coupe prise selon la ligne 4-4 de la fig. 3;
  • la fig. 5 montre l'une des moitiés du tambour formant porte-satellite, faisant partie du mécanisme réducteur de la raboteuse; et
  • la fig. 6 est une vue éclatée de ce mécanisme réducteur.
In the following, the invention is explained in more detail using drawings representing only one embodiment. In these drawings:
  • fig. 1 shows a partial elevation view of a planer in which the features of the invention are incorporated;
  • fig. 2 is a plan view of the part of the planer shown in FIG. 1;
  • lafig. 3 is a sectional and elevational view of the reducing mechanism used in the planer of FIGS. 1 and 2;
  • fig. 4 is a sectional view taken along line 4-4 of FIG. 3;
  • fig. 5 shows one of the halves of the planet carrier drum forming part of the planer reduction mechanism; and
  • fig. 6 is an exploded view of this reducing mechanism.

Dans le mode de réalisation représenté aux figures, l'invention est appliquée, à titre d'exemple à une raboteuse. Cependant, on notera que les caractéristiques de l'invention peuvent être appliquées à toute machine de corroyage autre qu'une raboteuse, telle qu'une dégauchisseuse par exemple.In the embodiment shown in the figures, the invention is applied, by way of example to a planer. However, it will be noted that the characteristics of the invention can be applied to any wrinkling machine other than a planer, such as a jointer for example.

Les fig. 1 et 2 montrent partiellement une raboteuse 1 comportant un bâti 2 dans les flancs 3 duquel est monté rotatif un outil de rabotage 4 d'une façon connue en soi. Cet outil est du type comportant un porte-outil muni de lames axiales saillantes (non représentées). Dans le bâti est également délimité un couloir de passage 5 dans lequel peut se déplacer une pièce de bois PB à travailler. Comme représenté en particulier sur la fig. 3, le fond du couloir est formé par un support 6 de hauteur réglable.Figs. 1 and 2 partially show a planer 1 comprising a frame 2 in the sides 3 of which a planing tool 4 is rotatably mounted in a manner known per se. This tool is of the type comprising a tool holder provided with projecting axial blades (not shown). In the frame is also delimited a passage corridor 5 in which can move a piece of wood PB to work. As shown in particular in FIG. 3, the bottom of the corridor is formed by a support 6 of adjustable height.

La fig. 1 montre que l'outil 4 fait saillie dans le couloir 5, la pièce étant rabotée et mise à épaisseur en progressant dans le couloir dans le sens de la flèche F (fig. 1Fig. 1 shows that the tool 4 projects into the corridor 5, the part being planed and thickened by progressing in the corridor in the direction of the arrow F (fig. 1

Pour assurer l'entraînement de la pièce PB, il est prévu deux rouleaux d'entraînement 7 et 8 placés de part et d'autre de l'outil 4, leurs axes étant parallèles à l'axe de ce dernier. Les rouleaux 7 et 8 font légèrement saillies dans le couloir 5 et peuvent ainsi entrer en contact avec la surface supérieure de la pièce PB en amont et en aval de la zone de travail de l'outil 4. Dans le cas représenté, le rouleau 7 est placé à l'entrée tandis que le rouleau 8 est placé à la sortie du couloir 5.To drive the workpiece PB, two drive rollers 7 and 8 are provided, placed on either side of the tool 4, their axes being parallel to the axis of the latter. The rollers 7 and 8 protrude slightly in the passage 5 and can thus come into contact with the upper surface of the part PB upstream and downstream of the working area of the tool 4. In the case shown, the roller 7 is placed at the entrance while the roller 8 is placed at the exit of the corridor 5.

L'outil 4 est entraîné par un moteur électrique, par exemple (non représenté) assurant un entraînement à grande vitesse de l'outil et de l'arbre 4a (fig. 2) sur lequel ce dernier est monté; la vitesse d'entraînement peut être par exemple de 6000 t/min.The tool 4 is driven by an electric motor, for example (not shown) ensuring a high speed drive of the tool and the shaft 4a (fig. 2) on which the latter is mounted; the drive speed can be for example 6000 rpm.

L'arbre 4a porte à son extrémité libre une poulie d'entraînement 9 qui est fixée sur cet arbre à l'aide d'une vis 10. Sur cette poulie 9 passe une courroire d'entraînement 11 qui est en prise avec un mécanisme réducteur 12 qui présente à cet effet une gorge annulaire 13 (voirfig. 3 et 6). Les rouleaux 7 et 8 dont un est de préférence cranté, sont montés sur des arbres 7a et 8a suspendus dans des paliers 14 montés élastiquement dans le bâti 1. Sur les dessins, seule la fig. 3 représente schématiquement, un tel palier 14 et sa suspension élastique est symbolisée ici par un ressort 15 accroché à la surface supérieure du bâti 2. Ainsi, les rouleaux 7 et 8 sont pressés constamment contre la pièce à travailler PB au cours de sa progression dans le couloir 5 et peuvent ainsi s'adapter à l'épaisseur de cette pièce.The shaft 4a carries at its free end a drive pulley 9 which is fixed to this shaft by means of a screw 10. On this pulley 9 passes a drive belt 11 which is engaged with a reduction mechanism 12 which has for this purpose an annular groove 13 (see FIGS. 3 and 6). The rollers 7 and 8, one of which is preferably notched, are mounted on shafts 7a and 8a suspended in bearings 14 resiliently mounted in the frame 1. In the drawings, only FIG. 3 schematically represents such a bearing 14 and its elastic suspension is symbolized here by a spring 15 attached to the upper surface of the frame 2. Thus, the rollers 7 and 8 are pressed constantly against the workpiece PB during its progression in the corridor 5 and can thus adapt to the thickness of this part.

L'arbre 7a comporte du côté du mécanisme réducteur 12, un prolongement étagé 16 à l'extrémité libre duquel est prévue une poulie 17 qui est arrêtée par une vis 18 engagée dans un trou fileté 19 de ce prolongement 16.The shaft 7a comprises, on the side of the reduction mechanism 12, a stepped extension 16 at the free end of which is provided a pulley 17 which is stopped by a screw 18 engaged in a threaded hole 19 of this extension 16.

De même, l'arbre 8a se prolonge latéralement par rapport au bâti 1 et porte à son extrémité, de la même façon, une poulie 20 de même diamètre que la poulie 17, une courroie d'entraînement 21 passant sur ces poulies. La poulie 20 est arrêtée sur l'arbre 8a sur lequel elle est calée par une vis 22 engagée dans un trou fileté (non visible sur les dessins) de l'arbre 8a.Similarly, the shaft 8a is extended laterally relative to the frame 1 and carries at its end, in the same way, a pulley 20 of the same diameter as the pulley 17, a drive belt 21 passing over these pulleys. The pulley 20 is stopped on the shaft 8a on which it is wedged by a screw 22 engaged in a threaded hole (not visible in the drawings) of the shaft 8a.

Le prolongement 16 de l'arbre 7a comporte au-delà du palier 14, deux portées 23 et 24, la portée 24 recevant notamment la poulie 17. Ainsi, le prolongement 16 présente deux épaulements radiaux annulaires 25 et 26 respectivement. Sur les portées 23 et 24 sont montés un planétaire fixe ou de réaction 27 et un planétaire rotatif 28 constituant la sortie du train planétaire formant le mécanisme réducteur 12. Le planétaire 27 comporte un manchon cylindrique 29 et un pignon 30, le manchon 29 tourillonnant dans un coussinet 31. Ce dernier est monté dans un trou central 32 d'un flasque radial 33 de la moitié 34a d'un tambour 35 qui forme le porte-satellite du mécanisme réducteur 12.The extension 16 of the shaft 7a comprises, beyond the bearing 14, two bearing surfaces 23 and 24, the bearing surface 24 in particular receiving the pulley 17. Thus, the extension 16 has two annular radial shoulders 25 and 26 respectively. On the bearings 23 and 24 are mounted a fixed or reaction sun gear 27 and a rotary sun gear 28 constituting the output of the planetary gear forming the reduction mechanism 12. The sun gear 27 comprises a cylindrical sleeve 29 and a pinion 30, the sleeve 29 swiveling in a bearing 31. The latter is mounted in a central hole 32 of a radial flange 33 of the half 34a of a drum 35 which forms the planet carrier of the reduction mechanism 12.

Ce tambour comporte ainsi deux moitiés 34a et 34b qui sont identiques, en dehors du fait que la moitié 34b comporte la gorge 13 dans laquelle est engagée la courroire 11 assurant l'entraînement de ce porte-satellite. Les deux moitiés de ce dernier sont emboîtées l'une dans l'autre à l'aide de pattes 36 qui font saillies axialement des bords en regard des deux moitiés du tambour 35.This drum thus comprises two halves 34a and 34b which are identical, apart from the fact that the half 34b comprises the groove 13 in which is engaged the strap 11 ensuring the drive of this planet carrier. The two halves of the latter are fitted into one another by means of lugs 36 which project axially from the edges opposite the two halves of the drum 35.

Le planétaire 28 comporte un manchon 37 et un pignon 38, ce planétaire étant muni d'une rainure de clavetage axial 39 assurant par l'intermédiaire d'une clavette 40 le couplage en rotation de ce pignon 28 avec l'arbre 7a.The sun gear 28 comprises a sleeve 37 and a pinion 38, this sun gear being provided with an axial keying groove 39 ensuring by means of a key 40 the rotational coupling of this pinion 28 with the shaft 7a.

Le manchon 37 comporte à son extrémité opposée au pignon 38, deux méplats 41 coopérant avec des pattes d'immobilisation en rotation de la poulie 17. Les pignons 30 et 38 comportent des dents de module identique mais en nombres différents par exemple. De préférence, le pignon. 30 présente 31 dents, tandis que le pignon 38 n'en comporte que 30.The sleeve 37 has at its end opposite to the pinion 38, two flats 41 cooperating with locking legs for rotation of the pulley 17. The pinions 30 and 38 have teeth of identical module but in different numbers for example. Preferably the pinion. 30 has 31 teeth, while the pinion 38 has only 30.

Les deux pignons 30 et 38 engrènent avec un seul satellite 42 tourillonnant dans les moitiés 34a et 34b du tambour 35. A cet effet, ces deux moitiés comportent des trous alignés 43 dans lesquels sont montées les portées 42a d'un satellite 42 par l'intermédiaire de roulements à aiguilles 44.The two pinions 30 and 38 mesh with a single satellite 42 journalling in the halves 34a and 34b of the drum 35. For this purpose, these two halves have aligned holes 43 in which are mounted the bearing surfaces 42a of a satellite 42 by the needle roller intermediate 44.

Le manchon 29 du planétaire 27 comporte à son extrémité opposée au pignon 30 deux méplats 45 d'immobilisation en rotation de ce planétaire. Ces méplats 45 coopèrent avec les bords rectilignes d'un trou rectangulaire 46 d'une plaquette de guidage 47 montée latéralement sur le bâti 1 devant un trou 48 ménagé dans la paroi latérale de ce bâti et à travers lequel passe l'arbre 7a du rouleau 7.The sleeve 29 of the sun gear 27 has at its end opposite the pinion 30 two flats 45 for immobilizing the sun gear in rotation. These flats 45 cooperate with the straight edges of a rectangular hole 46 of a guide plate 47 mounted laterally on the frame 1 in front of a hole 48 formed in the side wall of this frame and through which the shaft 7a of the roller passes. 7.

La description qui précède montre que le mécanisme réducteur 12 est monté entièrement en porte-à- faux sur l'arbre 7a du rouleau 7 et qu'il peut effectuer des mouvements verticaux avec ce rouleau en fonction de la variation d'épaisseur des pièces de bois à travailler, car le manchon 29 est monté coulissant verticalement dans la plaquette 47.The above description shows that the reduction mechanism 12 is completely cantilevered on the shaft 7a of the roller 7 and that it can perform vertical movements with this roller as a function of the variation in thickness of the pieces of wood to be worked, because the sleeve 29 is slidably mounted vertically in the plate 47.

Le rapport de réduction du train planétaire est comparativement très élevé et grâce à la présence de ce réducteur, on peut donc obtenir la réduction de vitesse nécessaire entre l'outil 4 et les rouleaux 7 et 8, pour un encombrement minimal de ce réducteur qui ne dépasse jamais en hauteur le plan supérieur 2 de la machine.The reduction ratio of the planetary gear is comparatively very high and thanks to the presence of this reducer, it is therefore possible to obtain the speed reduction necessary between the tool 4 and the rollers 7 and 8, for a minimum size of this reducer which does not never exceed the upper plane 2 of the machine in height.

Le rapport de réduction peut être choisi facilement par la différence des nombres de dents des pignons 30 et 38.The reduction ratio can be easily chosen by the difference in the numbers of teeth of the gears 30 and 38.

Le mécanisme à train planétaire permet également de prévoir dans l'alignement d'un même axe l'entrée et la sortie du réducteur, ce qui contribue également à réduire l'encombrement. En outre, le mécanisme étant logé dans un tambour entièrement fermé qui forme partie intégrante du réducteur, le train d'engrenages est à l'abri de la poussière et peut être graissé facilement une fois pour toutes.The planetary gear mechanism also allows the input and output of the reduction gear to be aligned in alignment with the same axis, which also contributes to reducing the bulk. In addition, the mechanism being housed in a fully closed drum which forms an integral part of the reducer, the gear train is protected from dust and can be easily greased once and for all.

Le mécanisme réducteur peut être réalisé en une matière moulée, par exemple, en alliage léger tel que le Zamac, ou éventuellement en matière plastique. Avantageusement, comme représenté sur les figures, les deux moitiés du tambour 35 sont de forme identique au moulage.The reduction mechanism can be made of a molded material, for example, a light alloy such as Zamac, or possibly plastic. Advantageously, as shown in the figures, the two halves of the drum 35 are of identical shape to the molding.

Un avantage particulier de la présence du mécanisme réducteur à train planétaire résulte de l'inversion de sens de rotation qu'il procure entre son entrée et sa sortie. Cette caractéristique particulière permet de monter le réducteur directement sur l'arbre d'un rouleau d'entraînement qui en constitue ainsi la sortie directe. Dans les dispositions classiques, au contraire, il faut prévoir une étape particulière dans la chaîne de réduction (pignons et courroies, par exemple) pour obtenir cette inversion de sens de rotation. Cette caratéristique permet en outre de relier directement par une courroie élastique (la courroie 11 en l'occurence) l'entrée du réducteur à l'arbre de l'outil 4.A particular advantage of the presence of the planetary gear reduction mechanism results from the reversal of the direction of rotation that it provides between its input and its output. This particular characteristic makes it possible to mount the reduction gear directly on the shaft of a drive roller which thus constitutes its direct output. In conventional arrangements, on the contrary, a special step must be provided in the reduction chain (sprockets and belts, for example) to obtain this reversal of direction of rotation. This characteristic also makes it possible to connect directly by an elastic belt (the belt 11 in this case) the inlet of the reducer to the shaft of the tool 4.

L'inversion du sens de rotation est obtenue grâce au fait que le pignon 30 qui constitue le pignon fixe ou de réaction du train planétaire, comporte le nombre de dents le plus élevé vis-à-vis du pignon 38.The reversal of the direction of rotation is obtained thanks to the fact that the pinion 30 which constitutes the fixed or reaction pinion of the planetary gear, has the highest number of teeth vis-à-vis the pinion 38.

Claims (5)

1. A machine for trimming of wood, such as a surfacing machine, planing machine or other machine, comprising a rotary tool (4) consisting of a tool holder provided with projecting axially extending blades and adapted to machine at least one surface of the piece of wood (PB) to be worked on, this tool being in adjacent relation, on the input side and output side respectively, to two driving rollers (7, 8) for driving the pieces to be worked on, these rollers having axes parallel to that of the tool and being coupled to rotate with the latter through a speed- reducing mechanism having a sun and planet gear train (12), characterised in that one of the sun gears (28) of the train (12) is mounted directly on the shaft (7a) of one (7) of the driving rollers (7, 8), it being rigid with this roller (7) and the other sun gear (27) is a reaction sun gear which is freely rotatable on this shaft (7a) and prevented from rotating relative to the frame (1) of the machine while being radially slidable in the frame (1) to permit the flexible application of the roller (7) against the workpiece.
2. A machine according to claim 1, characterised in that said reaction sun gear (27) has a coaxial sleeve (29) provided with flat surfaces (45) which are guided in a rectilinear guide (47, 48) provided on the frame (1).
3. A machine according to either one of the claims 1 and 2, characterised in that the sun gears (27, 28) have an identical modulus for the teeth and different numbers of teeth, there being provided only a single planet gear (42) having a single set of teeth engaged with the two sun gears (27, 28).
4. A machine according to any of the claims 1 to 3, characterised in that the shaft (7a) of the driving roller (7) associated with the sun and planet gear train (12) has a pulley (17) which drives, through a belt (21 ), a pulley (20) which is of the same diameter and fixed on the shaft (8a) of the other driving roller (8).
5. A machine according to any one of the claims 1 to 4, wherein the sun and planet gear train (12) comprises an outer drum (35) in two parts, characterised in that the two parts of the drum (35) are made by the moulding of the identical pieces.
EP81400059A 1980-01-22 1981-01-19 Planing machine Expired EP0032861B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400059T ATE7118T1 (en) 1980-01-22 1981-01-19 WOOD PLANING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8001285 1980-01-22
FR8001285A FR2473941A1 (en) 1980-01-22 1980-01-22 IMPROVED CORROYING MACHINE

Publications (3)

Publication Number Publication Date
EP0032861A2 EP0032861A2 (en) 1981-07-29
EP0032861A3 EP0032861A3 (en) 1981-08-05
EP0032861B1 true EP0032861B1 (en) 1984-04-18

Family

ID=9237732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400059A Expired EP0032861B1 (en) 1980-01-22 1981-01-19 Planing machine

Country Status (7)

Country Link
US (1) US4422486A (en)
EP (1) EP0032861B1 (en)
JP (1) JPS56117601A (en)
AT (1) ATE7118T1 (en)
CA (1) CA1146452A (en)
DE (1) DE3163127D1 (en)
FR (1) FR2473941A1 (en)

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US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
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US5756566A (en) * 1989-04-20 1998-05-26 A-Line Products Corp. Aqueous coating composition
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JPH1182697A (en) * 1997-09-09 1999-03-26 Harmonic Drive Syst Ind Co Ltd Planetary gear device fitted with backlash adjustment mechanism
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US6427735B1 (en) * 2001-02-26 2002-08-06 One World Technologies, Inc. Multi-speed surface planer and method of manufacture thereof
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DE345702C (en) * 1922-11-17
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Also Published As

Publication number Publication date
FR2473941B1 (en) 1983-09-16
EP0032861A2 (en) 1981-07-29
EP0032861A3 (en) 1981-08-05
ATE7118T1 (en) 1984-05-15
FR2473941A1 (en) 1981-07-24
CA1146452A (en) 1983-05-17
US4422486A (en) 1983-12-27
DE3163127D1 (en) 1984-05-24
JPS56117601A (en) 1981-09-16

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