EP0575270A1 - Tool chuck for a hydraulic hammer - Google Patents

Tool chuck for a hydraulic hammer Download PDF

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Publication number
EP0575270A1
EP0575270A1 EP93420248A EP93420248A EP0575270A1 EP 0575270 A1 EP0575270 A1 EP 0575270A1 EP 93420248 A EP93420248 A EP 93420248A EP 93420248 A EP93420248 A EP 93420248A EP 0575270 A1 EP0575270 A1 EP 0575270A1
Authority
EP
European Patent Office
Prior art keywords
guide
tool
zone
bore
rotation
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.)
Granted
Application number
EP93420248A
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German (de)
French (fr)
Other versions
EP0575270B1 (en
Inventor
Bernard Piras
Jean Sylvain Comarmond
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.)
Montabert SAS
Original Assignee
Montabert SAS
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Filing date
Publication date
Application filed by Montabert SAS filed Critical Montabert SAS
Publication of EP0575270A1 publication Critical patent/EP0575270A1/en
Application granted granted Critical
Publication of EP0575270B1 publication Critical patent/EP0575270B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y10T279/17085—Key retainer
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17923—Transverse pin

Definitions

  • the known solutions for ensuring these functions all have common characteristics.
  • the tool is guided on cylindrical surfaces, either of the same diameters or of different diameters.
  • the rotational stop and the axial retention of the tool are effected by one or more removable, cylindrical or flat keys.
  • the present invention provides a holding device which overcomes these drawbacks.
  • At least one of the means for guiding in translation delimits an area for setting in rotation cooperating with an area of complementary section formed, at least locally, on the tool.
  • the guiding curve of the guide zone in translation and in rotation setting comprises points of inflection forming angles of separation between facets.
  • the guide zone is delimited by the bore of a guide sleeve and comprises, at least, two pairs of opposite active facets.
  • the guide zone is delimited by at least two opposite pairs of independent plates, added in the bore of the guide body and each comprising an active facet.
  • the reference 2 designates the front guide comprising, in a known manner, upper 3 and lower guide means 4, for a tool 5 arranged coaxially with a striking piston 6.
  • the tool 5 is retained longitudinally in the front guide 2 by two transverse keys 7 passing through this front guide and each cooperating with an abutment face 8a forming part of two transverse notches 8 formed in the tool 5.
  • the setting in rotation of the tool 5 relative to the front guide 2 is provided by two guide means 3 and 4 which each have a guide zone whose guiding curve has inflection points forming angles 10 of separation between facets 12, that is to say has non-circular, polygonal or pseudopolygonal shapes.
  • the tool 5 has a square cross section and cooperates with sockets 3a and 4a, constituting the guide means, upper and lower, also having an axial bore of square section.
  • the tool 5b has two flats 14 constituting the facets 12 and cooperate with a socket 4c of similar internal section.
  • the tool 5c is provided, in its flats 14, with two concave facets 15. This tool cooperates with a bore of the same section as it formed in a socket 4d carried by the front guide 2.
  • FIG. 2 shows that the transverse clearances J1-J2 provided between the tool 5 and its guide means 3 and 4, whatever their embodiments, are less than the clearance J formed between the keys 7 and the bottom of the notches 8 , so that, in no case, the tool can come into contact with the keys in its transverse movements.
  • the tool When the tool is engaged deep in the ground and a resistant torque is applied on the whole of the front part of the device, the tool is set in rotation by its large active facets coming into contact with the facets opposite guide means 3 and 4.
  • the clearance J is also determined so that the keys 7 cannot come into contact with the tool in its working conditions.
  • FIG. 3 shows that, when the tool is no longer in support, the retaining keys 7 come into contact with the abutment faces 8a of the notches 8 and thus carry out the retention of the tool in the front guide of the rock breaker .
  • each of the guide means is not constituted by a socket but by at least two pairs of opposite plates 20, reported in the front guide 2.
  • These plates can be distributed along the four sides of a square or a rectangle and can have planar active faces as shown in 21 in FIGS. 7 and 8, concave active faces as shown in 22 in FIGS. 9 and 10, or convex as shown in 23 in Figures 11 and 12.
  • Their dorsal face can be flat or convex depending on the shape of the face against which they are supported.
  • the plates delimit a guide zone, the guiding curve of which includes points of inflection delimiting edges 10 and plane or curvilinear facets.
  • the cross section of the tool 5 is complementary to that of the guide zone, as already described in the previous embodiments.
  • the upper guide means 3 are composed of plates 20 delimiting a guide area of square section, cooperating with a square area of the tool, while the lower guide means 4 are constituted by a bush 4a having a cylindrical bore.
  • the tool 5 has, in the upper part, a square polygonal section, and below the notches 8, a cylindrical section.
  • FIGS. 14 and 15 show the application of the guide device according to the invention to a front guide 2 comprising a longitudinal bore of circular section 32.
  • each of the plates 33 has a flat active face 34 cooperating with a complementary face of the tool 5 and a semi-cylindrical back face 36 leaning against the wall of the bore 32.
  • the plates are fixed by radial screws 36.
  • the plates 38 of the same type as those 33 above, that is to say having an active face pla ne 34 and a semi-cylindrical dorsal face 35, are provided on their longitudinal edges with sloping faces 39 intended to cooperate with corners 40 inserted between two successive plates. These corners are fixed by screws 42 pulling them radially outwards. The plates 38 are thus clamped by their edges inside the cylindrical bore 32 of the front guide.
  • the guide device with rotational setting according to the invention may have any other sections than those described so far, provided that the combination of the facets of the tool with those of the complementary guide means or means, allows take up the resistant torque over large bearing surfaces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Paper (AREA)
  • Pens And Brushes (AREA)
  • Gripping On Spindles (AREA)

Abstract

This device is of the type in which the tool (5) is mounted so that it can slide, with the interposition of upper and lower guide means, in a front guide (2). According to the invention, at least one of the guide means (4a) delimits a guide zone the directrix curve of which comprises points of inflection forming corners (10) for separating the facets (12), the zone interacting with a zone of complementary cross-section formed, at least locally, on the tool (5) for wedging this tool in terms of rotation. <IMAGE>

Description

Les appareils à percussion mus par un fluide sous pression, communément appelés brise roche, sont des appareils de forte puissance et sont installés sur des engins porteurs. Ils comprennent un corps, généralement composé de plusieurs parties assemblées par des vis ou tirants. Ces parties peuvent être regroupées selon deux fonctions :

  • - la ou les parties supérieures du brise roche portent l'ensemble du mécanisme de frappe et en particulier le piston de frappe,
  • - la ou les parties inférieures portent, en particulier, l'outil destiné à transmettre les chocs à la roche. Ces parties inférieures du corps sont généralement appelées guide-avant.
Percussion devices driven by a pressurized fluid, commonly known as rock breakers, are high-powered devices and are installed on carrier machines. They comprise a body, generally composed of several parts assembled by screws or tie rods. These parts can be grouped according to two functions:
  • the upper part or parts of the rock breaker carry the entire striking mechanism and in particular the striking piston,
  • - The lower part (s) carry, in particular, the tool intended to transmit shocks to the rock. These lower parts of the body are generally called the front guide.

Pour obtenir un bon fonctionnement du brise roche, le guide-avant doit assurer par rapport à l'outil un certain nombre de fonction :

  • - le guidage, c'est à dire maintenir la coaxialité entre le piston de frappe et l'outil, supporter les efforts en flexion induits par l'engin porteur. Cette fonction est généralement assurée par une portée haute de guidage et une portée basse de guidage,
  • - l'arrêt en rotation, par l'intermédiaire de pièces amovibles, généralement appelées clavettes, qui supportent le couple résistant engendré par l'enfoncement de l'outil dans le terrain,
  • - la retenue axiale de l'outil, lorsque celui-ci a tendance à s'échapper du guide-avant, fonction également assurée par les clavettes situées entre la portée haute de guidage et la portée basse.
To get the rock breaker to work properly, the front guide must perform a number of functions in relation to the tool:
  • - Guidance, that is to maintain the coaxiality between the striking piston and the tool, withstand the bending forces induced by the carrier. This function is generally provided by a high guide range and a low guide range,
  • - stopping in rotation, by means of removable parts, generally called keys, which support the resistant torque generated by the insertion of the tool into the ground,
  • - The axial retention of the tool, when the latter tends to escape from the front guide, a function also ensured by the keys located between the high guide range and the low range.

Les solutions connues pour assurer ces fonctions ont toutes des caractéristiques communes. Le guidage de l'outil s'effectue sur des portées cylindriques, soit de mêmes diamètres, soit de diamètres différents. L'arrêt en rotation et la retenue axiale de l'outil s'effectuent parune ou plusieurs clavettes amovibles, cylindriques ou à méplats.The known solutions for ensuring these functions all have common characteristics. The tool is guided on cylindrical surfaces, either of the same diameters or of different diameters. The rotational stop and the axial retention of the tool are effected by one or more removable, cylindrical or flat keys.

Compte tenu de l'importance des efforts exercés par l'engin porteur sur le brise roche, les pressions de contact engendrées entre l'outil et ses portées de guidage sont très élevées. A cela, il faut ajouter que la lubrification de ce guidage ne peut être assurée que d'une façon très aléatoire.Given the importance of the forces exerted by the carrier on the rock breaker, the contact pressures generated between the tool and its guide surfaces are very high. To this, it should be added that the lubrication of this guide can only be ensured in a very random manner.

Ces conditions de montage et de fonctionnement conduisent à des grippages, des détériorations rapides des surfaces cylindriques en contact, à la diminution rapide de la qualité du guidage, et à l'endommagement des clavettes et des portées de clavette.These mounting and operating conditions lead to seizures, rapid deterioration of the cylindrical surfaces in contact, to the rapid reduction in the quality of the guidance, and to the damage of the keys and of the key bearing surfaces.

Ces inconvénients sont inhérents, d'une part, aux trop faibles surfaces réellement en contact entre l'outil et son guidage cylindrique, et, d'autre part, à la double fonction des clavettes. En effet, il est mécaniquement difficile de réaliser des clavettes amovibles de grande dimension qui puissent assurer, à la fois, la retenue axiale de l'outil et son arrêt en rotation, sur des surfaces larges, donc peu sollicitées.These drawbacks are inherent, on the one hand, to the too small surfaces actually in contact between the tool and its cylindrical guide, and, on the other hand, to the double function of the keys. Indeed, it is mechanically difficult to produce large removable pins which can ensure both the axial retention of the tool and its rotation stop, on large surfaces, therefore little stressed.

La présente invention fournit un dispositif de maintien remédiant à ces inconvénients.The present invention provides a holding device which overcomes these drawbacks.

A cet effet, dans le dispositif selon l'invention, au moins l'un des moyens de guidage en translation délimite une zone de calage en rotation coopérant avec une zone de section complémentaire ménagée, au moins localement, sur l'outil.To this end, in the device according to the invention, at least one of the means for guiding in translation delimits an area for setting in rotation cooperating with an area of complementary section formed, at least locally, on the tool.

Grâce à cet agencement, le guidage de l'outil et son calage en rotation sont assurés par les mêmes pièces, alors que la ou les clavettes n'assurent que la retenue axiale de l'outil. Ces clavettes sont ainsi déchargées du calage en rotation de l'outil qui est assuré exclusivement par les deux zones de guidage ménagées dans l'un des moyens de guidage et sur l'outil, zones pouvant présenter des surfaces beaucoup plus grandes et plus aptes à résister aux efforts de torsion et de flexion.Thanks to this arrangement, the guiding of the tool and its setting in rotation are ensured by the same parts, while the key (s) ensure only the axial retention of the tool. These keys are thus relieved of the setting in rotation of the tool which is provided exclusively by the two guide zones provided in one of the guide means and on the tool, zones which may have much larger surfaces and more capable of resist torsional and bending forces.

Avantageusement, la courbe directrice de la zone de guidage en translation et de calage en rotation comprend des points d'inflexion formant des angles de séparation entre facettes.Advantageously, the guiding curve of the guide zone in translation and in rotation setting comprises points of inflection forming angles of separation between facets.

Dans une forme d'exécution de l'invention, la zone de guidage est délimitée par l'alésage d'une douille de guidage et comporte, au moins, deux paires de facettes actives opposées.In one embodiment of the invention, the guide zone is delimited by the bore of a guide sleeve and comprises, at least, two pairs of opposite active facets.

Dans une autre forme d'exécution, la zone de guidage est délimitée par au moins deux paires opposées de plaquettes indépendantes, rapportées dans l'alésage du corps de guide et comportant chacune une facette active.In another embodiment, the guide zone is delimited by at least two opposite pairs of independent plates, added in the bore of the guide body and each comprising an active facet.

D'autres caractéristiques et avantages ressortiront de la description qui suit en référence au dessin schématique annexé, représentant à titre d'exemples non limitatifs, plusieurs formes d'exécution de ce dispositif de guidage et de calage en rotation d'un outil de brise béton.Other characteristics and advantages will emerge from the description which follows with reference to the appended schematic drawing, representing by way of nonlimiting examples, several embodiments of this device for guiding and setting in rotation of a concrete breaker tool .

  • Figure 1 est une vue en perspective d'une forme d'exécution d'un outil,FIG. 1 is a perspective view of an embodiment of a tool,
  • Figures 2 et 3 sont des vues de côté en coupe transversale montrant l'outil de figure 2, respectivement, lorsqu'il est en position de travail, et lorsqu'il est en position de butée sur les clavettes lorsque l'appareil est soulevé,Figures 2 and 3 are side views in cross section showing the tool of Figure 2, respectively, when it is in the working position, and when it is in the abutment position on the keys when the device is lifted,
  • Figure 4 est une vue en coupe transversale suivant IV-IV de figure 2 montrant les moyens de guidage de l'outil de figure 1,FIG. 4 is a cross-sectional view along IV-IV of FIG. 2 showing the means for guiding the tool of FIG. 1,
  • Figures 5 et 6 sont des vues similaires à la figure 4 mais montrant deux autres formes d'exécution des moyens de guidage en forme de douille et de l'outil,FIGS. 5 and 6 are views similar to FIG. 4 but showing two other embodiments of the bush-shaped guide means and the tool,
  • Figures 7 à 12 sont des vues en coupe transversale, similaires à la figure 2, montrant d'autres formes d'exécution de l'outil et des moyens de guidage, et plus spécialement des moyens de guidage ayant recours à des plaquettes,FIGS. 7 to 12 are cross-sectional views, similar to FIG. 2, showing other embodiments of the tool and of the guide means, and more particularly of the guide means using plates,
  • Figure 13 est une vue partielle en coupe longitudinale montrant une autre forme d'exécution des moyens de guidage de l'outil,FIG. 13 is a partial view in longitudinal section showing another embodiment of the means for guiding the tool,
  • Figures 14 et 15 sont des vues en coupe transversale montrant, à échelle agrandie, l'application des moyens de guidage selon l'invention, à des guides avant existants et comportant un alésage cylindrique.Figures 14 and 15 are cross-sectional views showing, on an enlarged scale, the application of the guide means according to the invention, to existing front guides and comprising a cylindrical bore.

Aux figures 2 et 3, la référence 2 désigne le guide avant comportant, de façon connue, des moyens de guidage supérieurs 3 et inférieurs 4, pour un outil 5 disposé coaxialement à un piston de frappe 6. L'outil 5 est retenu longitudinalement dans le guide avant 2 par deux clavettes transversales 7 traversant ce guide avant et coopérant chacune avec une face de butée 8a faisant partie de deux encoches transversales 8 ménagées dans l'outil 5.In FIGS. 2 and 3, the reference 2 designates the front guide comprising, in a known manner, upper 3 and lower guide means 4, for a tool 5 arranged coaxially with a striking piston 6. The tool 5 is retained longitudinally in the front guide 2 by two transverse keys 7 passing through this front guide and each cooperating with an abutment face 8a forming part of two transverse notches 8 formed in the tool 5.

Selon l'invention, dans la forme d'exécution représentée aux figures 1 à 6, le calage en rotation de l'outil 5 par rapport au guide avant 2 est assuré par deux moyens de guidage 3 et 4 qui comportent chacun une zone de guidage dont la courbe directrice comporte des points d'inflexion formant des angles 10 de séparation entre facettes 12, c'est à dire présente des formes non circulaires, polygonales, ou pseudopolygonales.According to the invention, in the embodiment shown in Figures 1 to 6, the setting in rotation of the tool 5 relative to the front guide 2 is provided by two guide means 3 and 4 which each have a guide zone whose guiding curve has inflection points forming angles 10 of separation between facets 12, that is to say has non-circular, polygonal or pseudopolygonal shapes.

Dans la forme d'exécution des figures 1 à 4, l'outil 5 présente une section transversale carrée et coopère avec des douilles 3a et 4a, constituant les moyens de guidage, supérieurs et inférieurs, ayant également un alésage axial de section carrée.In the embodiment of Figures 1 to 4, the tool 5 has a square cross section and cooperates with sockets 3a and 4a, constituting the guide means, upper and lower, also having an axial bore of square section.

Dans la forme d'exécution représentée à la figure 5, l'outil 5b comporte deux méplats 14 constituant les facettes 12 et coopèrent avec une douille 4c de section interne similaire.In the embodiment shown in Figure 5, the tool 5b has two flats 14 constituting the facets 12 and cooperate with a socket 4c of similar internal section.

A la figure 6, l'outil 5c est muni, dans ses méplats 14, de deux facettes concaves 15. Cet outil coopère avec un alésage de même section que lui ménagé dans une douille 4d portée par le guide avant 2.In FIG. 6, the tool 5c is provided, in its flats 14, with two concave facets 15. This tool cooperates with a bore of the same section as it formed in a socket 4d carried by the front guide 2.

Lorsque le brise roche est en appui sur la roche, l'extrémité supérieure de l'outil vient en appui sur une face de butée 11 ménagée dans le guide avant 2 pour limiter son engagement. L'effort de flexion communiqué à l'outil est compensé par les forces de réaction s'exerçant sur les facettes 12 des moyens de guidage 3a-3b.When the rock breaker is in contact with the rock, the upper end of the tool comes to bear on an abutment face 11 formed in the front guide 2 to limit its engagement. The bending force imparted to the tool is compensated by the reaction forces exerted on the facets 12 of the guide means 3a-3b.

La figure 2 montre que les jeux transversaux J1-J2 prévus entre l'outil 5 et ses moyens de guidage 3 et 4, quelles que soient leurs formes de réalisation, sont inférieurs au jeu J ménagé entre les clavettes 7 et le fond des encoches 8, afin que, en aucun cas, l'outil ne puisse venir en contact avec les clavettes dans ses mouvements transversaux.FIG. 2 shows that the transverse clearances J1-J2 provided between the tool 5 and its guide means 3 and 4, whatever their embodiments, are less than the clearance J formed between the keys 7 and the bottom of the notches 8 , so that, in no case, the tool can come into contact with the keys in its transverse movements.

Lorsque l'outil est engagé profondément dans le sol et qu'un couple résistant s'applique sur l'ensemble de la partie avant de l'appareil, l'outil est calé en rotation par ses larges facettes actives venant en contact avec les facettes en vis à vis des moyens de guidage 3 et 4. Le jeu J est également déterminé de manière que les clavettes 7 ne puissent pas venir en contact avec l'outil dans ses conditions de travail.When the tool is engaged deep in the ground and a resistant torque is applied on the whole of the front part of the device, the tool is set in rotation by its large active facets coming into contact with the facets opposite guide means 3 and 4. The clearance J is also determined so that the keys 7 cannot come into contact with the tool in its working conditions.

La figure 3 montre que, lorsque l'outil n'est plus en appui, les clavettes de retenue 7 viennent en contact avec les faces de butée 8a des encoches 8 et réalisent ainsi la retenue de l'outil dans le guide avant du brise roche.FIG. 3 shows that, when the tool is no longer in support, the retaining keys 7 come into contact with the abutment faces 8a of the notches 8 and thus carry out the retention of the tool in the front guide of the rock breaker .

Les formes d'exécution représentées aux figures 7 à 12 se différencient des précédentes par le fait que chacun des moyens de guidage n'est pas constitué par une douille mais par au moins deux paires de plaquettes opposées 20, rapportées dans le guide avant 2. Ces plaquettes peuvent être réparties suivant les quatre côtés d'un carré ou d'un rectangle et peuvent comporter des faces actives planes comme montré en 21 aux figures 7 et 8, des faces actives concaves comme montré en 22 aux figures 9 et 10, ou convexes comme montré en 23 aux figures 11 et 12. Leur face dorsale peut être plane ou convexe selon la forme de la face contre laquelle elles s'appuient.The embodiments shown in FIGS. 7 to 12 differ from the previous ones by the fact that each of the guide means is not constituted by a socket but by at least two pairs of opposite plates 20, reported in the front guide 2. These plates can be distributed along the four sides of a square or a rectangle and can have planar active faces as shown in 21 in FIGS. 7 and 8, concave active faces as shown in 22 in FIGS. 9 and 10, or convex as shown in 23 in Figures 11 and 12. Their dorsal face can be flat or convex depending on the shape of the face against which they are supported.

Dans toutes ces formes d'exécution, les plaquettes délimitent une zone de guidage dont la courbe directrice comporte des points d'inflexion délimitant des arêtes 10 et des facettes planes ou curvilignes. Bien entendu, la section transversale de l'outil 5 est complémentaire de celle de la zone de guidage, comme déjà décrit dans les formes d'exécution précédentes.In all of these embodiments, the plates delimit a guide zone, the guiding curve of which includes points of inflection delimiting edges 10 and plane or curvilinear facets. Of course, the cross section of the tool 5 is complementary to that of the guide zone, as already described in the previous embodiments.

Dans la forme d'exécution représentée à la figure 13, seuls les moyens de guidage supérieurs 3 sont composés de plaquettes 20 délimitant une zone de guidage de section carrée, coopérant avec une zone carrée de l'outil, tandis que les moyens de guidage inférieurs 4 sont constitués par une douille 4a comportant un alésage cylindrique. Selon cette réalisation, l'outil 5 présente, en partie haute, une section polygonale carrée, et au-dessous des encoches 8, une section cylindrique.In the embodiment shown in FIG. 13, only the upper guide means 3 are composed of plates 20 delimiting a guide area of square section, cooperating with a square area of the tool, while the lower guide means 4 are constituted by a bush 4a having a cylindrical bore. According to this embodiment, the tool 5 has, in the upper part, a square polygonal section, and below the notches 8, a cylindrical section.

Les efforts dus au couple résistant sont donc repris par les plaquettes 20, tandis que le guidage de la partie basse de l'outil est assuré par la douille 4, et que la retenue axiale est assurée par les clavettes 7.The forces due to the resistive torque are therefore taken up by the plates 20, while the guide of the lower part of the tool is ensured by the bush 4, and that the axial retention is ensured by the keys 7.

Les mêmes résultats peuvent être obtenus dans une variante de réalisation de la figure 13, variante dans laquelle le calage en rotation de l'outil n'est pas assuré par les moyens de guidage supérieurs 3, mais par les moyens inférieurs 4.The same results can be obtained in an alternative embodiment of FIG. 13, a variant in which the setting in rotation of the tool is not ensured by the upper guide means 3, but by the lower means 4.

Les figures 14 et 15 montrent l'application du dispositif de guidage selon l'invention à un guide avant 2 comportant un alésage longitudinal de section circulaire 32.FIGS. 14 and 15 show the application of the guide device according to the invention to a front guide 2 comprising a longitudinal bore of circular section 32.

A la figure 14, chacune des plaquettes 33 comporte une face active plane 34 coopérant avec une face complémentaire de l'outil 5 et une face dorsale semicylindrique 36 s'adossant contre la paroi de l'alésage 32. La fixation des plaquettes est assurée par des vis radiales 36.In FIG. 14, each of the plates 33 has a flat active face 34 cooperating with a complementary face of the tool 5 and a semi-cylindrical back face 36 leaning against the wall of the bore 32. The plates are fixed by radial screws 36.

Dans la forme d'exécution représentée à la figure 15, les plaquettes 38, de même type que celles 33 précitées, c'est à dire comportant une face active plane 34 et une face dorsale semicylindrique 35, sont munies sur leurs bords longitudinaux de faces pentues 39 destinées à coopérer avec des coins 40 s'insérant entre deux plaquettes successives. Ces coins sont fixés par des vis 42 les tirant radialement vers l'extérieur. Les plaquettes 38 sont ainsi bridées par leurs chants à l'intérieurde l'alésage cylindrique 32 du guide avant.In the embodiment shown in Figure 15, the plates 38, of the same type as those 33 above, that is to say having an active face pla ne 34 and a semi-cylindrical dorsal face 35, are provided on their longitudinal edges with sloping faces 39 intended to cooperate with corners 40 inserted between two successive plates. These corners are fixed by screws 42 pulling them radially outwards. The plates 38 are thus clamped by their edges inside the cylindrical bore 32 of the front guide.

Il est évident que le dispositif de guidage avec calage en rotation selon l'invention peut présenter toutes autres sections que celles décrites jusqu'ici, pourvu que la combinaison des facettes de l'outil avec celles du ou des moyens de guidage complémentaires, permette de reprendre le couple résistant sur de larges surfaces de portées.It is obvious that the guide device with rotational setting according to the invention may have any other sections than those described so far, provided that the combination of the facets of the tool with those of the complementary guide means or means, allows take up the resistant torque over large bearing surfaces.

Claims (9)

1. Dispositif de maintien de l'outil d'un brise roche hydraulique, du type dans lequel l'outil (5) est disposé coaxialement à un piston de frappe (6), est monté coulissant, avec interposition de moyens de guidage supérieurs (3) et inférieurs (4), dans un guide avant (2), et est limité dans sa course, respectivement, vers le haut, par une face de butée (11) du guide, et, vers le bas, par au moins une clavette transversale (7), disposée entre les moyens de guidage et formant également moyen de retenue axiale de cet outil dans le guide (2), caractérisé en ce que, au moins l'un des moyens de guidage en translation (3-4) délimite une zone de calage en rotation coopérant avec une zone de section complémentaire ménagée, au moins localement, sur l'outil (5).1. Device for holding the tool of a hydraulic rock breaker, of the type in which the tool (5) is arranged coaxially with a striking piston (6), is mounted to slide, with the interposition of upper guide means ( 3) and lower (4), in a front guide (2), and is limited in its stroke, respectively, upwards, by an abutment face (11) of the guide, and, downwards, by at least one transverse key (7), disposed between the guide means and also forming an axial retaining means for this tool in the guide (2), characterized in that, at least one of the guide means in translation (3-4) delimits a rotation wedging zone cooperating with a complementary section zone formed, at least locally, on the tool (5). 2. Dispositif selon la revendication 1, caractérisé en ce que la courbe directrice de la zone de guidage en translation et de calage en rotation comprend des points d'inflexion formant des angles (10) de séparation entre facettes (12).2. Device according to claim 1, characterized in that the guiding curve of the translational guide and rotation setting zone comprises points of inflection forming angles (10) of separation between facets (12). 3. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que la zone de guidage en translation et de calage en rotation est délimitée par l'alésage d'une douille de guidage (3a-4a) et comporte, au moins, deux paires de facettes actives et opposées (12).3. Device according to any one of claims 1 and 2, characterized in that the guide zone in translation and in rotation setting is delimited by the bore of a guide sleeve (3a-4a) and comprises, at minus two pairs of active and opposite facets (12). 4. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que la zone de guidage en translation et de calage en rotation est délimitée par au moins deux paires de plaquettes opposées (20-33-35), indépendantes, rapportées dans l'alésage du corps de guide et comportant, chacune, une facette active.4. Device according to any one of claims 1 and 2, characterized in that the zone for guiding in translation and for setting in rotation is delimited by at least two pairs of opposite plates (20-33-35), independent, attached in the bore of the guide body and each having an active facet. 5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la facette active (21-34) d'au moins deux plaquettes opposées (20-33-35) est plane.5. Device according to any one of claims 1 to 4, characterized in that the active facet (21-34) of at least two opposite plates (20-33-35) is planar. 6. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la facette active (23) d'au moins deux plaquettes opposées (20) est convexe.6. Device according to any one of claims 1 to 4, characterized in that the active facet (23) of at least two opposite plates (20) is convex. 7. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la facette active (22) d'au moins deux plaquettes opposées (20) est concave.7. Device according to any one of claims 1 to 4, characterized in that the active facet (22) of at least two opposite plates (20) is concave. 8. Dispositif selon l'une quelconque des revendications 4 à 7, caractérisé en ce que chaque plaquette (20) comporte un dos plan d'appui contre une partie plane de l'alésage la recevant.8. Device according to any one of claims 4 to 7, characterized in that each plate (20) has a back support plane against a flat part of the bore receiving it. 9. Dispositif selon l'une quelconque des revendications 4 à 7, caractérisé en ce que chaque plaquette (33-38) comporte un dos convexe (35) d'appui contre la paroi cylindrique de l'alésage (32) du guide avant (2).9. Device according to any one of claims 4 to 7, characterized in that each plate (33-38) has a convex back (35) bearing against the cylindrical wall of the bore (32) of the front guide ( 2).
EP93420248A 1992-06-16 1993-06-15 Tool chuck for a hydraulic hammer Expired - Lifetime EP0575270B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9207542 1992-06-16
FR9207542A FR2692187B1 (en) 1992-06-16 1992-06-16 DEVICE FOR HOLDING THE TOOL OF A HYDRAULIC ROCK BREAKER.

Publications (2)

Publication Number Publication Date
EP0575270A1 true EP0575270A1 (en) 1993-12-22
EP0575270B1 EP0575270B1 (en) 1996-05-08

Family

ID=9430981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93420248A Expired - Lifetime EP0575270B1 (en) 1992-06-16 1993-06-15 Tool chuck for a hydraulic hammer

Country Status (12)

Country Link
US (1) US5388842A (en)
EP (1) EP0575270B1 (en)
JP (1) JPH0639744A (en)
AT (1) ATE137698T1 (en)
AU (1) AU666014B2 (en)
CA (1) CA2098452C (en)
DE (1) DE69302524T2 (en)
ES (1) ES2088250T3 (en)
FI (1) FI104155B (en)
FR (1) FR2692187B1 (en)
GR (1) GR3020358T3 (en)
ZA (1) ZA934287B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2314287A (en) * 1996-06-19 1997-12-24 John Terrance Crilly Power tool with a fitment
EP0900635A2 (en) * 1997-09-04 1999-03-10 Krupp Berco Bautechnik GmbH Tool guiding on a pnematic driven percussion device
EP2635864A1 (en) * 2010-11-03 2013-09-11 Brokk Aktiebolag Demolition arrangement for a remote- controlled working machine equipped with a manoeuvrable arm, and the use of such for the refurbishment of metallurgical vessels
WO2018091791A1 (en) 2016-11-17 2018-05-24 Montabert Percussion apparatus

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503683C2 (en) * 1994-11-17 1996-07-29 Berema Atlas Copco Ab Hydraulic breaker
WO2000058058A1 (en) * 1999-03-26 2000-10-05 Reginald Frederick Taylor Hammer drill assembly
JP2001302649A (en) * 2000-04-28 2001-10-31 Sumitomo Chem Co Ltd Method for purifying propylene oxide
FR2808720B1 (en) * 2000-05-12 2002-07-26 Montabert Ets BREAKER TYPE PERCUSSION APPARATUS
US6510904B1 (en) 2000-05-26 2003-01-28 Nippon Pneumatic Mfg. Co., Ltd. Protected tool bushing for an impact hammer
DE10044387A1 (en) * 2000-09-08 2002-04-04 Bosch Gmbh Robert Tool holder for a hand machine tool
DE10105406A1 (en) * 2001-02-07 2002-08-08 Bosch Gmbh Robert Tool holder for a hand machine tool
DE10340164A1 (en) * 2003-09-01 2005-03-24 Robert Bosch Gmbh Tool holder for hand tools has multi-angled socket shaft defined by shaft walls which each widen out in one part to increase socket shaft in respect of tool shaft
FR2863518B1 (en) * 2003-12-15 2006-01-13 Montabert Roger DEVICE FOR ASSEMBLING THE HOUSING AND BODY OF A HYDRAULIC ROCK BREEZE
FR2881764B1 (en) * 2005-02-10 2007-03-16 Montabert Soc Par Actions Simp DAMAGE APPARATUS FOR ASSOCIATING WITH A BREEZE-ROCHE
US7503628B2 (en) * 2006-09-01 2009-03-17 Hall David R Formation breaking assembly
JP2008126378A (en) * 2006-11-22 2008-06-05 Makita Corp Hammering tool
FI119228B (en) * 2006-12-05 2008-09-15 Sandvik Mining & Constr Oy Storage of tools in crusher
EP2372203B1 (en) * 2010-03-29 2012-10-10 Siemens Aktiengesellschaft Coupling of an actuating drive with a valve using a holding element protruding into a recess
SE1051151A1 (en) * 2010-11-03 2012-05-04 Brokk Ab Breaking hammer on a working machine equipped with maneuverable arm

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE16210E (en) * 1925-11-10 Dbill head
US1798257A (en) * 1926-09-23 1931-03-31 Ingersoll Rand Co Front head for rock drills
US2128935A (en) * 1934-08-20 1938-09-06 Sullivan Machinery Co Rock drill
US2150189A (en) * 1938-01-17 1939-03-14 Ronneberg Erik Drill chuck for mine drilling machines
DE1957510A1 (en) * 1969-11-15 1971-05-27 Bosch Gmbh Robert Device for transferring rotary motion to impact drilling tools
DE2125818A1 (en) * 1971-05-25 1972-09-14
FR2234967A1 (en) * 1973-06-28 1975-01-24 Upat Max Langensiepen Kg
FR2248914A1 (en) * 1973-10-30 1975-05-23 Bosch Gmbh Robert
GB2161244A (en) * 1984-07-03 1986-01-08 Tampella Oy Ab Shaft couplings
DE3536132A1 (en) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Tool holder
US4906049A (en) * 1988-11-28 1990-03-06 N. P. K. Construction Equipment, Inc. Ripper using a hydraulic hammer and a method for making the improvement
DE9011245U1 (en) * 1990-07-31 1990-10-04 Beuermann, Herbert, Dipl.-Ing., 5207 Winterscheid Pressure-operated impact hammer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1969798A (en) * 1931-07-21 1934-08-14 Independent Pneumatic Tool Co Retainer for tools and the like
US2716393A (en) * 1949-03-17 1955-08-30 Chicago Pneumatic Tool Co Chipping hammer tool retainer
FR2211869A5 (en) * 1972-12-26 1974-07-19 Montabert Ets
DE2809569A1 (en) * 1978-03-06 1979-09-20 Chris Eggers Jensen Tool assembly for mechanical or percussion drills - comprises take=up bore with spring-loaded locking ball, cylindrical spindle, and neoprene sheathing
JP4102782B2 (en) * 2004-06-30 2008-06-18 株式会社大滝油圧 Bridge girder delivery construction method and guide device used therefor

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE16210E (en) * 1925-11-10 Dbill head
US1798257A (en) * 1926-09-23 1931-03-31 Ingersoll Rand Co Front head for rock drills
US2128935A (en) * 1934-08-20 1938-09-06 Sullivan Machinery Co Rock drill
US2150189A (en) * 1938-01-17 1939-03-14 Ronneberg Erik Drill chuck for mine drilling machines
DE1957510A1 (en) * 1969-11-15 1971-05-27 Bosch Gmbh Robert Device for transferring rotary motion to impact drilling tools
DE2125818A1 (en) * 1971-05-25 1972-09-14
FR2234967A1 (en) * 1973-06-28 1975-01-24 Upat Max Langensiepen Kg
FR2248914A1 (en) * 1973-10-30 1975-05-23 Bosch Gmbh Robert
GB2161244A (en) * 1984-07-03 1986-01-08 Tampella Oy Ab Shaft couplings
DE3536132A1 (en) * 1985-10-10 1987-04-16 Bosch Gmbh Robert Tool holder
US4906049A (en) * 1988-11-28 1990-03-06 N. P. K. Construction Equipment, Inc. Ripper using a hydraulic hammer and a method for making the improvement
DE9011245U1 (en) * 1990-07-31 1990-10-04 Beuermann, Herbert, Dipl.-Ing., 5207 Winterscheid Pressure-operated impact hammer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2314287A (en) * 1996-06-19 1997-12-24 John Terrance Crilly Power tool with a fitment
GB2314287B (en) * 1996-06-19 2001-01-10 John Terrance Crilly Hand held power tools
EP0900635A2 (en) * 1997-09-04 1999-03-10 Krupp Berco Bautechnik GmbH Tool guiding on a pnematic driven percussion device
EP0900635A3 (en) * 1997-09-04 2003-01-15 Krupp Berco Bautechnik GmbH Tool guiding on a pnematic driven percussion device
EP2635864A1 (en) * 2010-11-03 2013-09-11 Brokk Aktiebolag Demolition arrangement for a remote- controlled working machine equipped with a manoeuvrable arm, and the use of such for the refurbishment of metallurgical vessels
EP2635864A4 (en) * 2010-11-03 2014-04-09 Brokk Aktiebolag Demolition arrangement for a remote- controlled working machine equipped with a manoeuvrable arm, and the use of such for the refurbishment of metallurgical vessels
WO2018091791A1 (en) 2016-11-17 2018-05-24 Montabert Percussion apparatus

Also Published As

Publication number Publication date
AU666014B2 (en) 1996-01-25
FR2692187A1 (en) 1993-12-17
FR2692187B1 (en) 1997-06-20
FI104155B1 (en) 1999-11-30
EP0575270B1 (en) 1996-05-08
US5388842A (en) 1995-02-14
DE69302524D1 (en) 1996-06-13
FI932745A (en) 1993-12-17
AU4127393A (en) 1993-12-23
ES2088250T3 (en) 1996-08-01
CA2098452A1 (en) 1993-12-17
ZA934287B (en) 1994-01-17
GR3020358T3 (en) 1996-09-30
DE69302524T2 (en) 1996-09-12
JPH0639744A (en) 1994-02-15
ATE137698T1 (en) 1996-05-15
FI932745A0 (en) 1993-06-15
FI104155B (en) 1999-11-30
CA2098452C (en) 1997-11-04

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