EP1694470A2 - Device for assembling the housing and the body of a hydraulic rock-breaker - Google Patents

Device for assembling the housing and the body of a hydraulic rock-breaker

Info

Publication number
EP1694470A2
EP1694470A2 EP04805677A EP04805677A EP1694470A2 EP 1694470 A2 EP1694470 A2 EP 1694470A2 EP 04805677 A EP04805677 A EP 04805677A EP 04805677 A EP04805677 A EP 04805677A EP 1694470 A2 EP1694470 A2 EP 1694470A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
casing
tool
housing
breaker
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
EP04805677A
Other languages
German (de)
French (fr)
Other versions
EP1694470B1 (en
Inventor
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Montabert SAS filed Critical Montabert SAS
Publication of EP1694470A2 publication Critical patent/EP1694470A2/en
Application granted granted Critical
Publication of EP1694470B1 publication Critical patent/EP1694470B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • B25D17/082—Retainers consisting of a swinging yoke or latching means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
    • 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
    • Y10T279/17068—Rotary socket
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means

Definitions

  • the present invention relates to a device for assembling the casing and the body of a hydraulic rock breaker.
  • Demolition devices of the hydraulic rock breaker type generally include a casing, inside which is housed a body comprising the hydraulic impact mechanism. Inside the body is mounted a tool, such as a pick or chisel, guided and retained by a guide sleeve, itself mounted inside the body.
  • a tool such as a pick or chisel
  • a guide sleeve itself mounted inside the body.
  • the object of the invention is to provide a device for assembling the casing and the body of a hydraulic rock breaker in which the locking in rotation of the body and the casing can be carried out in a simple manner and with great reliability.
  • the device which it concerns comprising a casing, inside which is housed a body comprising the hydraulic striking mechanism, inside which is a bush used for guiding a tool, the tool being kept in rotation and limited in translation in the guide sleeve by a key, and the guide sleeve being kept in rotation and in translation in the body by a key, is characterized in that the guide sleeve comprises at least one peripheral zone of non-circular shape cooperating with a zone of complementary shape formed in the front part of the casing, in order to limit the rotation of the socket and therefore of the body with respect to the casing.
  • the limitation in rotation of the body relative to the casing is achieved by means of the guide bush of the tool, the bush being locked in rotation on the casing by means of at least one peripheral zone of non-circular shape, while the body is locked in rotation with respect to the sleeve by known means constituted by a key.
  • the front end of the sleeve comprises at least one facet intended to come into abutment against a facet formed in the front part of the casing.
  • the front end of the sleeve comprises a peripheral zone of polygonal section, and the front part of the casing comprises an opening of polygonal section complementary to the external shape of the sleeve.
  • the front end of the sleeve and the front part of the casing comprise a set of grooves - complementary longitudinal grooves.
  • the mounting of the tool in the socket and of the socket in the body are carried out using a single key, oriented transversely to the axis of the rock breaker and passing through bores, recess and notch in the housing, in the body, in the socket and in the tool, respectively.
  • the mounting of the tool in the socket and of the socket in the body are carried out using two separate keys, oriented transversely to the axis of the rock breaker, one of the keys passing through bores and recesses in the housing, in the body and in the socket and the other key, passing through bores in the housing and the body and a notch in the tool.
  • the guide sleeve can be very short, and be provided only at the front end of the body and the casing.
  • Figure 2 is a perspective view, the various elements being assembled.
  • Figure 3 is a cross-sectional view along the line III-III of Figure 2.
  • Figure 4 is an exploded perspective view of a second breaker, without tools.
  • Figure 5 is a longitudinal sectional view of the lower part of the rock breaker of Figure 4, this section being made along the line VV of Figure 4.
  • the rock breaker shown in Figures 1 to 3 comprises a casing 2 of generally cylindrical shape , one end of which is fitted with a plate 3 for fixing to the arm of a machine or the like, and the other end of which is fitted with a front part 4 comprising an opening 5 intended to allow the passage of a tool 6.
  • the casing 2 Inside the casing 2 is intended to house a body 7 comprising the hydraulic striking mechanism, inside of which is mounted a guide bush 8 used for mounting and guiding the tool 6.
  • the casing 2 has a transverse bore 9 and the body 7 has a corresponding bore 11 allowing the engagement of a key 10.
  • the guide sleeve 8 has, in its side wall, a through recess 12 allowing the pa ssage of the same key 10, which projects inside the volume delimited by the interior surface of the socket 8, as shown in FIG. 3, and enters a notch 13 formed in the rear part of the tool 6.
  • the key 10 therefore serves to retain the socket 8 with respect to the body 7 as well as the tool 6 with respect to the body 7 and the socket 8.
  • the end of the sleeve 8 located on the side of the front part of the casing 2 has an outer profile 14 with facets, and more precisely in the embodiment shown in the drawing, a polygonal profile consisting of a square shape with cut angles.
  • the front part 4 of the casing 2 has a opening 5 delimited by a profile complementary to the profile 14, so that the end piece 14 is perfectly locked in the profile 15.
  • the guide sleeve 8 is locked in rotation with respect to the casing 2, the body 7 also being limited in rotation with respect to the casing 2 by means of the sleeve 8 and the key 10.
  • FIG. 4 shows another breaker in which the same elements are designated by the same references as above.
  • the sleeve 8 for guiding the tool 6 is shorter than previously, so that the fastenings of the sleeve and the tool on the body are made separately.
  • the key 10 is engaged in the notch 13, and is used only for retaining the tool 6.
  • the casing 2 has another transverse bore 16, for the engagement of a key 17 , intended to engage in a recess 18 of the guide sleeve 8, and to pass through a bore 19 of the body. In this case also and as shown in FIG.
  • the blocking in rotation of the casing 2 and of the body 7 is achieved by means of the guide bush 8 by cooperation of the faceted end 14 of this guide bush with the front part 4 of the casing 2, which has an opening 5 delimited by a profile 15 complementary to the faceted end 14.
  • the invention brings a great improvement to the existing technique by providing a device assembly of the casing and the body of a rock breaker of simple structure and an economic cost price. It goes without saying that the invention is not limited to the sole embodiments of this device described above by way of examples, on the contrary it embraces all of the variant embodiments thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Regulating Braking Force (AREA)
  • Shovels (AREA)
  • Disintegrating Or Milling (AREA)
  • General Details Of Gearings (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

The device has a housing (2) with a body (7) comprising a guide bushing (8) to mount and guide a tool (6). The bushing is maintained in rotation and in translation in the body by a wedge. The bushing has a non circular shaped outer profile (14) cooperating with a complementary profile (15) arranged in a front part (4) of the housing, in order to limit the rotation of the bushing and the body with respect to the housing.

Description

DISPOSITIF D'ASSEMBLAGE DU CARTER ET DU CORPS D'UN BRISE-ROCHE HYDRAULIQUE La présente invention a pour objet un dispositif d'assemblage du carter et du corps d'un brise-roche hydraulique. Les appareils de démolition du type brise-roche hydraulique, comprennent généralement un carter, à l'intérieur duquel est logé un corps comprenant le mécanisme hydraulique de frappe. A l'intérieur du corps est monté un outil, tel qu'un pic ou un burin, guidé et retenu par une douille de guidage, elle-même montée à l'intérieur du corps. Lors du fonctionnement d'un brise-roche, un couple de rotation est transmis par le corps de l'appareil au carter, notamment lors de l'utilisation d'un outil dont l'extrémité active est orientée. Il est donc nécessaire de limiter la rotation du corps à l'intérieur du carter. Dans le cas de petits brise-roches hydrauliques, il est intéressant de réaliser des pièces, carter et corps de forme générale cylindrique, pour des raisons de simplicité de réalisation, de telles pièces pouvant être obtenues par tournage. Le corps doit donc être immobilisé en translation dans le carter par des butées mécaniques haute et basse, élastiques ou non, et sa rotation doit être limitée par un clavetage situé entre ces deux pièces. Cet arrêt en rotation est durement sollicité lors du fonctionnement, par l'effet des vibrations et du couple transmis par l'outil au brise-roche, occasionnant parfois des usures prématurées. Cette limitation de rotation du corps par rapport au carter est également nécessaire dans le cas d'un carter et/ou d'un corps de section polygonale, de même forme ou non, montés avec jeu l'un dans l'autre. Le but de l'invention est de fournir un dispositif d'assemblage du carter et du corps d'un brise-roche hydraulique dans lequel le blocage en rotation du corps et du carter puisse être réalisé de façon simple et avec une grande fiabilité. A cet effet, le dispositif qu'elle concerne, comprenant un carter, à l'intérieur duquel est logé un corps comprenant le mécanisme hydraulique de frappe, à l'intérieur duquel est montée une douille servant au guidage d'un outil, l'outil étant maintenu en rotation et limité en translation dans la douille de guidage par une clavette, et la douille de guidage étant maintenue en rotation et en translation dans le corps par une clavette, est caractérisé en ce que la douille de guidage comporte au moins une zone périphérique de forme non circulaire coopérant avec une zone de forme complémentaire ménagée dans la partie avant du carter, afin de limiter la rotation de la douille et donc du corps par rapport au carter. Ainsi, dans le dispositif selon l'invention, la limitation en rotation du corps par rapport au carter, est réalisée par l'intermédiaire de la douille de guidage de l'outil, la douille étant bloquée en rotation sur le carter par l'intermédiaire d'au moins une zone périphérique de forme non circulaire, tandis que le corps est bloqué en rotation vis-à-vis de la douille par des moyens connus constitués par une clavette. Suivant une forme d'exécution de ce dispositif, l'extrémité avant de la douille comporte au moins une facette destinée à venir en appui contre une facette ménagée dans la partie frontale du carter. Avantageusement, l'extrémité avant de la douille comporte une zone périphérique de section polygonale, et la partie frontale du carter comprend une ouverture de section polygonale complémentaire de la forme extérieure de la douille. Suivant une autre forme d'exécution de ce dispositif, l'extrémité avant de la douille et la partie frontale du carter comportent un jeu de cannelures - rainures longitudinales complémentaires. Selon une possibilité, les montages de l'outil dans la douille et de la douille dans le corps, sont réalisés à l'aide d'une clavette unique, orientée transversalement à l'axe du brise-roche et traversant des alésages, évidement et encoche ménagés respectivement dans le carter, dans le corps, dans la douille et dans l'outil. Selon une autre possibilité, les montages de l'outil dans la douille et de la douille dans le corps, sont réalisés à l'aide de deux clavettes distinctes, orientées transversalement à l'axe du brise-roche, l'une des clavettes traversant des alésages et evidements ménagés dans le carter, dans le corps et dans la douille et l'autre clavette, traversant des alésages ménagés dans le carter et le corps et une encoche ménagée dans l'outil. Dans ce dernier cas, la douille de guidage peut être très courte, et n'être ménagée qu'à l'extrémité avant du corps et du carter. De toute façon, l'invention sera bien comprise, à l'aide 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 d'assemblage pour brise-roche hydraulique. Figure 1 est une vue en perspective éclatée des principaux composants d'un premier brise-roche. Figure 2 en est une vue en perspective, les différents éléments étant assemblés. Figure 3 en est une vue en coupe transversale selon la ligne lll-lll de figure 2. Figure 4 est une vue en perspective éclatée d'un second brise- roche, sans outil. Figure 5 est une vue en coupe longitudinale de la partie inférieure du brise-roche de figure 4, cette coupe étant réalisée suivant la ligne V-V de figure 4. Le brise-roche représenté aux figures 1 à 3 comprend un carter 2 de forme générale cylindrique, dont une extrémité est équipée d'une platine 3 de fixation sur le bras d'un engin ou similaire, et dont l'autre extrémité est équipée d'une partie frontale 4 comprenant une ouverture 5 destinée à permettre le passage d'un outil 6. A l'intérieur du carter 2 est destiné à venir se loger un corps 7 comprenant le mécanisme hydraulique de frappe, à l'intérieur duquel est montée une douille de guidage 8 servant au montage et au guidage de l'outil 6. En pratique, le carter 2 présente un alésage transversal 9 et le corps 7 présente un alésage 11 correspondant permettant l'engagement d'une clavette 10. Pour sa part, la douille de guidage 8 présente, dans sa paroi latérale, un evidement traversant 12 permettant le passage de cette même clavette 10, qui déborde à l'intérieur du volume délimité par la surface intérieure de la douille 8, comme montré à la figure 3, et pénètre dans une encoche 13 ménagée dans la partie arrière de l'outil 6. La clavette 10 sert donc à retenir la douille 8 vis-à-vis du corps 7 de même que l'outil 6 vis-à-vis du corps 7 et de la douille 8. Suivant la caractéristique essentielle de l'invention, l'extrémité de la douille 8 située du côté de la partie frontale du carter 2 présente un profil extérieur 14 à facettes, et plus précisément dans la forme d'exécution représentée au dessin, un profil polygonal constitué par une forme carrée à angles coupés. Pour sa part, la partie frontale 4 du carter 2 présente une ouverture 5 délimitée par un profil complémentaire du profil 14, afin que l'embout 14 soit parfaitement bloqué dans le profil 15. Ainsi, la douille de guidage 8 est bloquée en rotation vis-à-vis du carter 2, le corps 7 étant également limité en rotation vis-à-vis du carter 2 par l'intermédiaire de la douille 8 et de la clavette 10. La figure 4 représente un autre brise-roche dans lequel les mêmes éléments sont désignés par les mêmes références que précédemment. Dans ce cas, la douille 8 de guidage de l'outil 6 est plus courte que précédemment, de telle sorte que les fixations de la douille et de l'outil sur le corps sont réalisées séparément. Dans la forme d'exécution représentée, la clavette 10 est engagée dans l'encoche 13, et sert uniquement à la retenue de l'outil 6. Le carter 2 présente un autre alésage transversal 16, pour l'engagement d'une clavette 17, destinée à s'engager dans un evidement 18 de la douille de guidage 8, et à traverser un alésage 19 du corps. Dans ce cas encore et comme montré à la figure 5, le blocage en rotation du carter 2 et du corps 7 est réalisé par l'intermédiaire de la douille de guidage 8 par coopération de l'extrémité à facettes 14 de cette douille de guidage avec la partie frontale 4 du carter 2, qui présente une ouverture 5 délimitée par un profil 15 complémentaire de l'extrémité à facettes 14. Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante en fournissant un dispositif d'assemblage du carter et du corps d'un brise-roche de structure simple et d'un prix de revient économique. Comme il va de soi, l'invention ne se limite pas aux seules formes d'exécution de ce dispositif décrites ci-dessus à titre d'exemples, elle en embrasse au contraire toutes les variantes de réalisation. The present invention relates to a device for assembling the casing and the body of a hydraulic rock breaker. Demolition devices of the hydraulic rock breaker type generally include a casing, inside which is housed a body comprising the hydraulic impact mechanism. Inside the body is mounted a tool, such as a pick or chisel, guided and retained by a guide sleeve, itself mounted inside the body. During the operation of a rock breaker, a torque is transmitted by the body of the device to the housing, especially when using a tool whose active end is oriented. It is therefore necessary to limit the rotation of the body inside the casing. In the case of small hydraulic breakers, it is advantageous to produce parts, casing and body of generally cylindrical shape, for reasons of simplicity of production, such parts being obtainable by turning. The body must therefore be immobilized in translation in the casing by high and low mechanical stops, elastic or not, and its rotation must be limited by a keying located between these two parts. This rotational stop is severely stressed during operation, by the effect of vibrations and of the torque transmitted by the tool to the rock breaker, sometimes causing premature wear. This limitation of rotation of the body relative to the casing is also necessary in the case of a casing and / or of a body of polygonal section, of the same shape or not, mounted with play in one another. The object of the invention is to provide a device for assembling the casing and the body of a hydraulic rock breaker in which the locking in rotation of the body and the casing can be carried out in a simple manner and with great reliability. To this end, the device which it concerns, comprising a casing, inside which is housed a body comprising the hydraulic striking mechanism, inside which is a bush used for guiding a tool, the tool being kept in rotation and limited in translation in the guide sleeve by a key, and the guide sleeve being kept in rotation and in translation in the body by a key, is characterized in that the guide sleeve comprises at least one peripheral zone of non-circular shape cooperating with a zone of complementary shape formed in the front part of the casing, in order to limit the rotation of the socket and therefore of the body with respect to the casing. Thus, in the device according to the invention, the limitation in rotation of the body relative to the casing is achieved by means of the guide bush of the tool, the bush being locked in rotation on the casing by means of at least one peripheral zone of non-circular shape, while the body is locked in rotation with respect to the sleeve by known means constituted by a key. According to one embodiment of this device, the front end of the sleeve comprises at least one facet intended to come into abutment against a facet formed in the front part of the casing. Advantageously, the front end of the sleeve comprises a peripheral zone of polygonal section, and the front part of the casing comprises an opening of polygonal section complementary to the external shape of the sleeve. According to another embodiment of this device, the front end of the sleeve and the front part of the casing comprise a set of grooves - complementary longitudinal grooves. According to one possibility, the mounting of the tool in the socket and of the socket in the body are carried out using a single key, oriented transversely to the axis of the rock breaker and passing through bores, recess and notch in the housing, in the body, in the socket and in the tool, respectively. According to another possibility, the mounting of the tool in the socket and of the socket in the body are carried out using two separate keys, oriented transversely to the axis of the rock breaker, one of the keys passing through bores and recesses in the housing, in the body and in the socket and the other key, passing through bores in the housing and the body and a notch in the tool. In the latter case, the guide sleeve can be very short, and be provided only at the front end of the body and the casing. In any case, the invention will be clearly understood, with the aid of the description which follows, with reference to the appended schematic drawing representing, by way of nonlimiting examples, several embodiments of this assembly device for hydraulic breaker. Figure 1 is an exploded perspective view of the main components of a first breaker. Figure 2 is a perspective view, the various elements being assembled. Figure 3 is a cross-sectional view along the line III-III of Figure 2. Figure 4 is an exploded perspective view of a second breaker, without tools. Figure 5 is a longitudinal sectional view of the lower part of the rock breaker of Figure 4, this section being made along the line VV of Figure 4. The rock breaker shown in Figures 1 to 3 comprises a casing 2 of generally cylindrical shape , one end of which is fitted with a plate 3 for fixing to the arm of a machine or the like, and the other end of which is fitted with a front part 4 comprising an opening 5 intended to allow the passage of a tool 6. Inside the casing 2 is intended to house a body 7 comprising the hydraulic striking mechanism, inside of which is mounted a guide bush 8 used for mounting and guiding the tool 6. In practical, the casing 2 has a transverse bore 9 and the body 7 has a corresponding bore 11 allowing the engagement of a key 10. For its part, the guide sleeve 8 has, in its side wall, a through recess 12 allowing the pa ssage of the same key 10, which projects inside the volume delimited by the interior surface of the socket 8, as shown in FIG. 3, and enters a notch 13 formed in the rear part of the tool 6. The key 10 therefore serves to retain the socket 8 with respect to the body 7 as well as the tool 6 with respect to the body 7 and the socket 8. According to the essential characteristic of the invention, the end of the sleeve 8 located on the side of the front part of the casing 2 has an outer profile 14 with facets, and more precisely in the embodiment shown in the drawing, a polygonal profile consisting of a square shape with cut angles. For its part, the front part 4 of the casing 2 has a opening 5 delimited by a profile complementary to the profile 14, so that the end piece 14 is perfectly locked in the profile 15. Thus, the guide sleeve 8 is locked in rotation with respect to the casing 2, the body 7 also being limited in rotation with respect to the casing 2 by means of the sleeve 8 and the key 10. FIG. 4 shows another breaker in which the same elements are designated by the same references as above. In this case, the sleeve 8 for guiding the tool 6 is shorter than previously, so that the fastenings of the sleeve and the tool on the body are made separately. In the embodiment shown, the key 10 is engaged in the notch 13, and is used only for retaining the tool 6. The casing 2 has another transverse bore 16, for the engagement of a key 17 , intended to engage in a recess 18 of the guide sleeve 8, and to pass through a bore 19 of the body. In this case also and as shown in FIG. 5, the blocking in rotation of the casing 2 and of the body 7 is achieved by means of the guide bush 8 by cooperation of the faceted end 14 of this guide bush with the front part 4 of the casing 2, which has an opening 5 delimited by a profile 15 complementary to the faceted end 14. As appears from the above, the invention brings a great improvement to the existing technique by providing a device assembly of the casing and the body of a rock breaker of simple structure and an economic cost price. It goes without saying that the invention is not limited to the sole embodiments of this device described above by way of examples, on the contrary it embraces all of the variant embodiments thereof.

Claims

REVENDICATIONS 1. Dispositif d'assemblage du carter (2) et du corps (7) d'un brise- roche hydraulique, comprenant un carter (2), à l'intérieur duquel est logé un corps (7) comprenant le mécanisme hydraulique de frappe, à l'intérieur duquel est montée une douille (8) servant au guidage d'un outil (6), l'outil étant maintenu en rotation et limité en translation dans la douille de guidage (8) par une clavette (10), et la douille de guidage étant maintenue en rotation et en translation dans le corps (7) par une clavette, caractérisé en ce que la douille de guidage (8) comporte au moins une zone périphérique (14) de forme non circulaire coopérant avec une zone (15) de forme complémentaire ménagée dans la partie avant du carter (2), afin de limiter la rotation de la douille (8) et donc du corps (7) par rapport au carter (2). 2. Dispositif selon la revendication 1 , caractérisé en ce que l'extrémité avant de la douille (8) comporte au moins une facette destinée à venir en appui contre une facette ménagée dans la partie frontale du carter. 3. Dispositif selon la revendication 2, caractérisé en ce que l'extrémité avant de la douille (8) comporte une zone périphérique (14) de section polygonale, et la partie frontale (4) du carter comprend une ouverture (5) de section polygonale (15) complémentaire de la forme extérieure de la douille (8). 4. Dispositif selon la revendication 1 , caractérisé en ce que l'extrémité avant de la douille et la partie frontale du carter comportent un jeu de cannelures - rainures longitudinales complémentaires. 5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les montages de l'outil (6) dans la douille (8) et de la douille (8) dans le corps (7), sont réalisés à l'aide d'une clavette unique (10), orientée transversalement à l'axe du brise-roche et traversant des alésages (9, 11), evidement (12) et encoche (13) ménagés respectivement dans le carter (2), dans le corps (7), dans la douille (8) et dans l'outil (6). 6. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les montages de l'outil (6) dans la douille et de la douille (8) dans le corps (7), sont réalisés à l'aide de deux clavettes distinctes, orientées transversalement à l'axe du brise-roche, l'une (17) des clavettes traversant des alésages (16) et evidements (18) ménagés dans le carter (2), dans le corps (7) et dans la douille (8), et l'autre clavette (10), traversant des alésages (9, 11) ménagés dans le carter (2) et le corps (7) et une encoche (13) ménagée dans l'outil (6). CLAIMS 1. Device for assembling the casing (2) and the body (7) of a hydraulic breaker, comprising a casing (2), inside which is housed a body (7) comprising the hydraulic mechanism of strike, inside which is mounted a sleeve (8) for guiding a tool (6), the tool being kept in rotation and limited in translation in the guide sleeve (8) by a key (10) , and the guide sleeve being held in rotation and in translation in the body (7) by a key, characterized in that the guide sleeve (8) comprises at least one non-circular peripheral zone (14) cooperating with a zone (15) of complementary shape formed in the front part of the casing (2), in order to limit the rotation of the sleeve (8) and therefore of the body (7) relative to the casing (2). 2. Device according to claim 1, characterized in that the front end of the sleeve (8) comprises at least one facet intended to come into abutment against a facet formed in the front part of the casing. 3. Device according to claim 2, characterized in that the front end of the sleeve (8) comprises a peripheral zone (14) of polygonal section, and the front part (4) of the housing comprises an opening (5) of section polygonal (15) complementary to the external shape of the sleeve (8). 4. Device according to claim 1, characterized in that the front end of the sleeve and the front part of the housing comprise a set of grooves - complementary longitudinal grooves. 5. Device according to one of claims 1 to 4, characterized in that the assemblies of the tool (6) in the sleeve (8) and of the sleeve (8) in the body (7), are made at l '' using a single key (10), oriented transversely to the axis of the rock breaker and passing through bores (9, 11), recess (12) and notch (13) formed respectively in the housing (2), in the body (7), in the sleeve (8) and in the tool (6). 6. Device according to one of claims 1 to 4, characterized in that the assemblies of the tool (6) in the sleeve and of the sleeve (8) in the body (7) are produced using two separate keys, oriented transversely to the axis of the breaker, one (17) of the keys passing through bores (16) and recesses (18) formed in the casing (2), in the body (7) and in the sleeve (8), and the other key (10), passing through bores (9, 11) formed in the casing (2) and the body (7) and a notch (13) formed in the tool (6).
EP04805677A 2003-12-15 2004-12-09 Device for assembling the housing and the body of a hydraulic rock-breaker Not-in-force EP1694470B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0314667A FR2863518B1 (en) 2003-12-15 2003-12-15 DEVICE FOR ASSEMBLING THE HOUSING AND BODY OF A HYDRAULIC ROCK BREEZE
PCT/FR2004/003174 WO2005058552A2 (en) 2003-12-15 2004-12-09 Device for assembling the housing and the body of a hydraulic rock-breaker

Publications (2)

Publication Number Publication Date
EP1694470A2 true EP1694470A2 (en) 2006-08-30
EP1694470B1 EP1694470B1 (en) 2009-12-09

Family

ID=34610656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04805677A Not-in-force EP1694470B1 (en) 2003-12-15 2004-12-09 Device for assembling the housing and the body of a hydraulic rock-breaker

Country Status (16)

Country Link
US (1) US7364168B2 (en)
EP (1) EP1694470B1 (en)
JP (1) JP2007513787A (en)
KR (1) KR101089243B1 (en)
CN (1) CN100395082C (en)
AT (1) ATE451202T1 (en)
AU (1) AU2004298470A1 (en)
BR (1) BRPI0417397A (en)
CA (1) CA2548826A1 (en)
DE (1) DE602004024573D1 (en)
ES (1) ES2335104T3 (en)
FR (1) FR2863518B1 (en)
IL (1) IL175959A0 (en)
NO (1) NO20063288L (en)
WO (1) WO2005058552A2 (en)
ZA (1) ZA200604826B (en)

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EP2419035B1 (en) * 2009-04-16 2017-07-05 ConforMIS, Inc. Patient-specific joint arthroplasty methods for ligament repair
US9102045B2 (en) * 2011-09-29 2015-08-11 Caterpillar Inc. System and method for easy removal of hydraulic hammer bushing

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Also Published As

Publication number Publication date
KR20060110347A (en) 2006-10-24
FR2863518A1 (en) 2005-06-17
US7364168B2 (en) 2008-04-29
CN100395082C (en) 2008-06-18
KR101089243B1 (en) 2011-12-02
DE602004024573D1 (en) 2010-01-21
JP2007513787A (en) 2007-05-31
WO2005058552A2 (en) 2005-06-30
AU2004298470A1 (en) 2005-06-30
EP1694470B1 (en) 2009-12-09
CA2548826A1 (en) 2005-06-30
CN1890063A (en) 2007-01-03
ZA200604826B (en) 2007-03-28
NO20063288L (en) 2006-07-14
IL175959A0 (en) 2006-10-05
ATE451202T1 (en) 2009-12-15
ES2335104T3 (en) 2010-03-22
FR2863518B1 (en) 2006-01-13
WO2005058552A3 (en) 2005-09-15
BRPI0417397A (en) 2007-04-17
US20070107697A1 (en) 2007-05-17

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