EP3047074B1 - Mechanisches system mit verbindungsvorrichtung zwischen einem verschleissteil und stütze dafür sowie schaufel einer tiefbaumaschine - Google Patents

Mechanisches system mit verbindungsvorrichtung zwischen einem verschleissteil und stütze dafür sowie schaufel einer tiefbaumaschine Download PDF

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Publication number
EP3047074B1
EP3047074B1 EP14766999.8A EP14766999A EP3047074B1 EP 3047074 B1 EP3047074 B1 EP 3047074B1 EP 14766999 A EP14766999 A EP 14766999A EP 3047074 B1 EP3047074 B1 EP 3047074B1
Authority
EP
European Patent Office
Prior art keywords
key
cam
support
mechanical system
sheath
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.)
Active
Application number
EP14766999.8A
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English (en)
French (fr)
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EP3047074A1 (de
Inventor
Fabrice MARCHAND
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Safe Metal SAS
Original Assignee
Safe Metal SAS
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Publication date
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Publication of EP3047074A1 publication Critical patent/EP3047074A1/de
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Publication of EP3047074B1 publication Critical patent/EP3047074B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E02F9/2841—Retaining means, e.g. pins resilient
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2825—Mountings therefor using adapters
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2883—Wear elements for buckets or implements in general

Definitions

  • the present invention relates to a mechanical system comprising a support, a wear part and a connecting device between the wear part and its support, in particular a tooth and its support belonging to equipment of public works machinery.
  • the invention also relates to a bucket of construction machinery comprising at least one such system.
  • the field of application of the invention is that of equipment of public works machinery, in particular buckets, buckets or other receptacles capable of scraping, removing and moving materials for the purpose of evacuation from a given place to other operating posts using public works machinery.
  • a bucket comprises a driving blade equipped with wear parts provided for their ability to penetrate the material and protection of the other components of the bucket.
  • wear parts On the attacking blades are fixed adapter-holders having a profiled nose, while the wear parts are teeth or shields which are positioned on the support-adapter in a precise connection. This connection is temporary to allow the replacement of wearing parts after wear.
  • connection between the wear part and its support can be achieved by a keying.
  • the keying devices must provide a rigid connection of the elements they bring together.
  • the assembly and disassembly of the keyings are performed by the action of striking tools, with the risk of injury to operators.
  • WO-2013/030335 describes a mechanical system comprising an improved keying device, not requiring the use of striking tools.
  • the device comprises an elastically deformable sheath and a rigid key, movable integrally in rotation.
  • US-2008/209772 discloses a mechanical system, comprising a support, a wear part and a connecting device between the wear part and its support.
  • the connecting device comprises a body, a sheath, a key and a rod.
  • the body is provided with an internal cavity and an adjustable outer wall in a housing of the support.
  • the sheath is made of elastic material deformable, provided with an internal cavity and an adjustable outer wall in a housing of the body, and not in a housing of the support.
  • the key has an elongate body along a key axis and a head provided with a latch.
  • the rod can be inserted into a housing of the body to lock the key in position in the body.
  • the object of the present invention is to propose a new connecting device, making it possible to dispense with striking operations for the assembly as for the dismantling of the wear parts, while being efficient, reliable, resistant and practical.
  • the subject of the invention is a mechanical system, comprising a support, a wear part and a device for connecting the wear part and its support, in particular a bucket tooth and its support which belong to a equipment of public works machinery, the connecting device comprising a sheath of elastically deformable material, provided with an internal cavity and an adjustable outer wall in a housing of the support, and a key comprising an elongated body along an axis of key.
  • the mechanical system is characterized in that the connecting device also comprises a cam provided with an adjustable external wall in the internal cavity of the sleeve and an internal cavity designed to receive the key, and in that when the connecting device is positioned in the housing of the support, the key and the cam are movable integrally in rotation in the inner cavity of the sheath, between: an insertion configuration of the key in the cam, and at least one locking configuration where the key supports radially to the key axis against the wear part, while the cam bears against the sleeve and deforms its outer wall against the support housing, thus forming a coupling connection between the wear part and the support.
  • the invention ensures a satisfactory maintenance of the wear part on its support and a permanent balancing of the forces generated within the mechanical system in use.
  • the invention provides a balancing of the forces generated within the connecting device and the forces generated by the connecting device on the support and the wear part, in particular in a direction parallel to the axis of the key. This limits the stress concentrations on sensitive elements such as the key or the lugs of the wear part, likely to lead to premature wear, deformation and breakage of these elements.
  • the connecting device By passing from the insertion configuration to the locking configuration, the connecting device ensures an initial power up of the compressed sheath against the support and the key bearing against the wear part.
  • the invention thus makes it possible to compensate for wear games, generated mainly by the matting of the wear part on the support due to the thrust forces specific to the work of such a mechanical system.
  • the connecting device defines a single locking configuration
  • the operator can perform an initial power up of the system in large but appropriate proportions.
  • the connecting device defines several successive locking configurations, the operator can change the power up as and when wear, by simply pivoting the key and without disassembly of the system.
  • the mechanical system according to the invention also incorporates a significant sealing function for the targeted applications.
  • This sealing is provided within the connecting device and at its interface with the support and the wear part, so as to compensate for the mobilities within the mechanical system, during assembly, during locking and in service.
  • This sealing function takes into account the different movements and deformations of the constituent elements of the mechanical system, in particular the sheath, the key and the cam ensuring the contact and the positioning under permanent tension of the wearing part on the support.
  • the invention also relates to a bucket of construction machinery, comprising at least one mechanical system as mentioned above.
  • the bucket generally comprises a series of supports each receiving a tooth which behaves as a wear part and is secured to its support by a connecting device.
  • FIG. 1 to 3 On the Figures 1 to 3 is represented a mechanical system 1 according to the invention, equipping a bucket G of public works machinery.
  • the mechanical system 1 comprises an adapter-holder 10, a wear part 20 of the tooth or tip type, and a device 30 for connecting the support 10 to the tooth 20.
  • the system 1 extends substantially along an axis X1, along which a first direction D1 of fitting of the tooth 20 to the support 10 is defined and a second direction D2, parallel and opposite to the first direction D1, of disassembly of the tooth 20.
  • Bucket G is partially represented at figure 1 , for the sake of simplification.
  • the support 10 is integral with the bucket G, while the tooth 20 is a wear part to be disassembled when it is too worn by the operation of the bucket G.
  • the connecting device 30 extends generally along a central axis X30 and comprises a sheath 40, a key 50, a notched push-button cam 60, a crescent 70, as well as two seals 80 and 90.
  • the parts 40, 50, 60, 70, 80 and 90 are distinct.
  • each of the parts 40, 50, 60, 70, 80 and 90 is monobloc.
  • the connecting device 30 is adjustable in a housing 14 of the support 10, with the sleeve 40 which is in contact with the walls of this housing 14.
  • the key 50 and the cam 60 are then rotatably movable in the sleeve 40.
  • 50 and the cam 60 pivot between, on the one hand, an insertion configuration A of the device 30 in the housing 14, in which the key 50 is inserted into the toothed cam 60 and, on the other hand, a configuration of locking B of the device 30, in which the key 50 is supported radially on the axis X30 against the tooth 20, while the toothed cam 60 bears against the sleeve 40 and deforms it in the housing 14 of the support 10, thus forming a connection coupling between the tooth 20 and its support 10.
  • the sheath 40 is static, ie not rotatable with the key 50 and the cam 60.
  • a front side 2 is defined at which the tooth 20 is located, a rear side 3 at which the support 10 is located, an upper side 4 oriented to the opposite of the ground when the system 1 is assembled, a first insertion side of the device 30 in the support 10, a second side 6 opposite the insertion side 5, and a lower side 7 facing the ground when the system 1 is assembled.
  • the sides 5 and 6 respectively correspond to the left and the right of the system 1 with respect to the disassembly direction D2.
  • the support 10 comprises a base 11 intended to be fixed to the bucket G, and a fitting nose 12 intended to be engaged in a cavity 24 of the tooth 20 shaped for this purpose, as shown in FIG. figure 3 .
  • a housing 13 for receiving the lugs 23 of the tooth 20 is provided on each side 5 and 6 of the base 11. Each housing 13 has walls situated towards the rear 3, the top 4 and the bottom 7, and is open forward 2 to receive the ears 23.
  • the housing 14 extends through the nose 12, along an axis X14, opening on the sides 5 and 6. This housing 14 is partly framed by the housing 13 on the sides 5 and 6.
  • the housing 14 has a surface rounded interior 15 and a planar inner surface 16, which extends generally along the axis X14.
  • the flat surface 16 is located towards the rear 3 and the bottom 7 of the housing 14, being oriented towards the front 2 and the top 4 of this housing 14.
  • the housing 14 In a section plane perpendicular to the axis X14, the housing 14 has a transverse section which decreases from the side 5 to the side 6. This transverse section has a generally oval shape defined by the surface 15, with a rectilinear part defined by the surface 16.
  • the surfaces 15 and 16 converge towards the 6.
  • the housing 14 is provided to receive the sheath 40, with the flat surface 16 which is provided to receive a flat surface 46 belonging to the sheath 40.
  • the tooth 20 comprises an active portion 21 located forwardly 2 and a hollow portion 22 facing rearward 3.
  • the portion 21 is intended to scrape and remove materials, for example earth or gravel, while the portion 22 is provided for the fitting of the tooth 20 on the support 10.
  • the portion 22 comprises the inner cavity 24, shaped for fitting on the nose 12 of the support 10, as well as the ears 23 which are directed towards the rear 3 and intended to be received in the housings 13, in contact upwards 4 and the bottom 7, as shown in FIG. figure 2 .
  • the ear 23 located on the side 5 has a marker 215, in this case an arrow molded or engraved on the outer face of the ear 23 on the example of the figure 1 .
  • the marker 235 facilitates the insertion of the device 30 in the housing 14 in insertion configuration A, with a specific initial position.
  • the marker 235 also facilitates the identification of the configuration B.
  • lateral orifices 25 are formed on either side of the tooth 20 on the sides 5 and 6.
  • the orifices 25 are positioned facing the housing 14 when the tooth 20 is fitted on the support 10, allowing the insertion of the key 50 and the implementation of the device 30 positioned in the support 10 and the tooth 20.
  • Each orifice 25 has a generally cylindrical shape, with an enlargement of the front side 2.
  • Each orifice 25 is formed in part in one of the ears 24.
  • Each orifice 25 has a cavity 26 for receiving the pin 50 emerging from the housing 14, and a cavity 27 for receiving a plug 100 or 110.
  • the cavity 27 located on the side 5 has a groove 271, while the cavity 27 located on the side 6 has a boss 272.
  • Each orifice 25 has a rim 28 formed projecting on the side 5 or 6 of the tooth 20.
  • the cavities 26 are provided to receive the key 50 bearing on the tooth 20 in the locking configuration B, as detailed below. More specifically, the cavity 26 located on the insertion side 5 is provided to receive the head 51, while the cavity 26 located on the side 6 is provided to receive the foot 52.
  • the cavity 26 located on the side 5 comprises three parts 261, 262 and 263 to receive different parts of the head 51, as detailed below.
  • the portion 261 is located between the portions 262 and 263 and has a dimension radially smaller than its central axis.
  • the portion 262 is located on the outside of the orifice 25, on the side 5 of the tooth 2.
  • the portion 263 is located on the inside of the orifice 25, facing the housing 14.
  • the axes X1, X14 and X30 are substantially located in the same median plane Pm1 of the system 1, as shown in figure 2 .
  • the sheath 40 is of elastically deformable material, for example elastomer.
  • the sheath 40 is provided to tension the various components of the system 1.
  • the sheath 40 is elongated between longitudinal ends 41 and 42 along a central axis X40, which is intended to be aligned with the axis X14 of the housing 14 and is generally aligned with the X30 axis of the device 30.
  • the end 41 is located on the side 5, while the end 42 is on the side 6.
  • the end 41 has a reference mark 415, in this case an arrow shown in particular to the figure 11 , provided to facilitate the relative orientation between the sleeve 40 and the cam 60.
  • the sleeve 40 has an annular groove 411 including a radial recess 412 at the end 41 and an annular groove 421 including a radial recess 422 at the end 42
  • the ends 41 and 42 are adapted to receive the joints 80 and 90.
  • the sleeve 40 includes an outer wall 44, including a rounded surface 45 and a flat surface 46, which extends generally along the axis X40.
  • the flat surface 46 is located towards the rear 3 and the bottom 7 of the wall 44.
  • the wall 44 In a sectional plane perpendicular to the axis X40, the wall 44 has a cross section of generally oval defined by the surface 45, with a rectilinear part defined by the surface 46. This transverse section is globally decreasing from the end 41 towards the end 42. In other words, the wall 44 converges towards the end 42, as shown in FIG. figure 6 .
  • the housing 14 and the outer wall 44 have substantially complementary shapes, so that the sleeve 40 can be adjusted in the housing 14 of the support 10.
  • the flat surface 46 then abuts against the flat surface 16.
  • the surfaces 16 and 46 form polarizing means facilitating the positioning of the sheath 40 in the housing 14.
  • the flat surface 46 preferably comprises a marker, in this case an arrow on the example of the figure 7 , facilitating the insertion of the sheath 40 into the housing 14, with a specific initial position, in the insertion configuration A.
  • the rounded surface 45 has an area 451 of deformation and localized compression absorption, located on the front side 2 when the sleeve 40 is disposed in the housing 14.
  • the zone 451 has circumferential grooves 452, longitudinal grooves 453, holes large 454 center blinds and 455 small side blind holes.
  • the zone 451 comprises four grooves 452 and three grooves 453, four central holes 454 and eight lateral holes 455.
  • the zone 451 may comprise different localized recesses distributed according to any arrangement and all forms adapted to the present application, producing a weakening
  • the zone 451 is arranged to facilitate the deformations of the sleeve 40 in compression, firstly during its passage through the orifice 25, secondly in the housing 14 under the action of the 60.
  • the deformations of the sheath 40 are not shown in the figures for the sake of simplification.
  • the sleeve 40 also comprises a longitudinal internal cavity 47 eccentric with respect to the axis X40.
  • the sleeve 40 is generally annular and the cavity is closed, except at the ends 41 and 42.
  • the cavity 47 comprises a portion 48 for receiving and supporting the cam 60, and a portion 49 for receiving and supporting the Crescent 70.
  • the portion 49 is positioned in opposition to the zone 451 of the sleeve 40.
  • the portion 48 comprises substantially flat bearing surfaces 481 framed by longitudinal grooves 482, while the portion 49 comprises bearing surfaces 491 substantially convex framed by longitudinal grooves 492, whose functions will be detailed below.
  • the surfaces 481 and 482 and the grooves 491 and 492 are distributed around the periphery of the cavity 47 and extend in the longitudinal direction of the sleeve 40 between the ends 41 and 42.
  • the part 48 and in particular its surfaces 481 define an axis longitudinal X48 parallel to the axis X40, with a constant eccentric difference formed between them in a plane perpendicular to the axis X40.
  • the cavity 47 comprises five surfaces 481, six grooves 482, three surfaces 491 and four grooves 492.
  • the cavity 47 may comprise different surfaces and grooves in any arrangement and all forms suitable for the present application.
  • the portion 48 also comprises conical pins 484, formed on two of the surfaces 481 and elastically deformable in contact with the cam 60. These pins 484 allow a clearance of the games between the sleeve 40 and the cam 60 , and ensures correct positioning of the cam 60 against the crescent 70.
  • the portion 48 also includes a tab 486, shown in FIG. figure 7 formed at the end end 41 on one of the surfaces 481.
  • the tongue 486 is provided to cooperate with a groove 66 in the cam 60.
  • the portion 48 also has a stop 488, shown in FIG. figure 7 , formed on the end 42 side. The tongue 486 and the abutment 488 ensure a correct positioning of the cam 60 in the sleeve 40 along the axis X30 and its locking during the pre-assembly of the device 30.
  • the key 50 is metallic, for example steel.
  • the key 50 comprises a head 51, a foot 52, and a body 53 elongate along an axis X 50 between the head 51 and the foot 52.
  • the key 50 is rotatable R1 or R0 between two distinct positions, respectively corresponding to the insertion configuration A and the locking configuration B.
  • the head 51 and the foot 52 are provided to cooperate with the tooth 20 at the orifices 25, while the body 53 is provided to cooperate with the cam 60.
  • An eccentric difference e50 variable is defined between the axes X40 and X50 in a plane perpendicular to these axes X40 and X50.
  • the eccentric e50 is more important in the locking configuration B than in the insertion configuration A, as shown in particular in FIGS. Figures 11 and 14 .
  • the head 51 has an outer surface 511 having a cylindrical cross section.
  • the head 51 also has means of axial double retention along the axis X50, namely ears 512 and 513 formed projecting on the surface 511.
  • the lug 512 has three substantially flat outer faces, while the lug 513 comprises a rounded outer surface.
  • the head 51 is provided to bear in the orifice 25 of the tooth 20 located on the side 5, with the surface 511 which bears in the portion 261 of the orifice 25, while the ears 512 and 513 come to housed in the portions 262 and 263 of the orifice 25.
  • the lugs 512 and 513 make it possible to prevent accidental removal of the key 50 which is in an intermediate position of notching, between the insertion configuration A and the locking configuration B.
  • the head 51 also comprises a second external surface 514 having a cylindrical transverse section.
  • the surface 514 is located on the other side of the lug 513 with respect to the surface 511, being closer to the body 53.
  • the head 51 also comprises marks 515, corresponding to the configurations A and B, intended to facilitate the manipulation and orientation of the key 50. Each of the marks 515 of the key 50 is positioned opposite the reference 235 of the tooth 20 in one of the configurations A or B.
  • the foot 52 comprises an outer portion 522 having a section hexagonal and an outer surface 524 having a cylindrical section.
  • the part 522 makes it possible to obtain a compromise between the rotational mobility of the key 50 and the extent of the bearing surface of the foot 52 on the tooth 20, in correspondence with the progressive notching of the cam 60.
  • the part 522 limits the rotation of the key 50 once in locking configuration B.
  • the surface 524 is closer to the body 53 than the portion 522.
  • the surfaces 514 and 524 are provided to receive the joints, respectively 80 and 90
  • the head 51 also comprises a hexagonal cavity 516 actuated by a tool, not shown for the sake of simplification.
  • the foot 52 also has a hexagonal cavity 526 for driving it by a second tool.
  • the head 51 and the foot 52 may be shaped differently for actuation by other types of tools.
  • the body 53 extends between the surfaces 514 and 524.
  • the body 53 comprises a rounded surface 531 and five neighboring flat surfaces 532, distributed around the axis X50.
  • the two surfaces 532 bordering the surface 531 have smaller dimensions than the other surfaces 532.
  • a rib 533 is formed on a part of the flat surface 532 of the middle, on the side of the surface 514 of the head 51.
  • the surfaces 532 and the rib 533 extend in the longitudinal direction defined parallel to the axis X50.
  • the surfaces 532 and the rib 533 form positioning and indexing means defined in correspondence with the cam 60.
  • the toothed cam 60 is metallic, for example made of steel.
  • the cam 60 makes it possible, by virtue of its rotation R1 and its change of position, to compress the assembly of the constituent elements of the device 30.
  • the cam 60 can also be described as an eccentric pusher.
  • the cam 60 extends between a front end 61 and a rear end 62 along an axis X60. Along this axis X60, the cam 60 has a length equal to at least 30% of the length of the key 50, in this case approximately 48% on the example of the Figures 1 to 5 .
  • the end 61 has a mark 615, in this case an arrow shown in particular to the figure 11 , designed to be positioned opposite the mark 415 of the sleeve 40 in the insertion configuration A.
  • the marks 415 and 615 allow to facilitate the relative positioning of the sheath 40 and the cam 60 in the configuration A.
  • the cam 60 comprises an outer wall 63 having a rounded surface 631 and flat surfaces 632, connected by slightly rounded obtuse angles. On the example of Figures 4, 5 , 8 and 11 to 16 , the wall 63 comprises five surfaces 632.
  • the cam 60 is designed to be received in the internal cavity 47 of the sleeve 40, more precisely in its portion 48, in contact with the crescent 70. More specifically, the wall 63 is positioned in support against the surfaces 481 of the sleeve 40 and against the inner face 73 of the crescent 70.
  • the rounded surface 631 bears against the inner face 73, while the flat surfaces 632 bear against the surfaces 481.
  • the flat surfaces 632 bear against the inner face 73, while the rounded surface 631 bears against the surfaces 481.
  • the surfaces 632 form notches during the rotation R1 or R0 of the toothed cam 60 in the cavity 47 of the sheath 40.
  • the cam 60 also comprises an internal cavity 64 defining a central axis X64 parallel to the axis X60, with an eccentric distance e60 formed between them in a plane perpendicular to the axis X60.
  • Eccentric e60 is constant in configurations A and B, as shown in particular in Figures 11 and 14 .
  • the cavity 64 has a rounded surface 641, three neighboring flat surfaces 642 and a groove 643 formed in the flat surface 642 of the medium.
  • the surfaces 642 and the groove 643 extend in the longitudinal direction defined parallel to the axis X60.
  • the cavity 64 is provided to receive the body 53 of the key 50.
  • the cooperation between the surfaces 532 and 642, the rib 533 and the groove 643 makes it possible to define the correct positioning of the key 50 in the cam 60.
  • these elements 532, 642, 533 and 643 form polarizing means facilitating the positioning of the key 50 in the cam 60.
  • these elements 532, 642, 533 and 643 constitute means for securing in rotation R1 or R0 the key 50 with the cam 60.
  • the cam 60 On the side of the end 61, the cam 60 has a groove 66 formed around the axis X60 on a portion of the wall 63.
  • the groove 66 is provided to cooperate with the tongue 486 shown in FIG. figure 7 , located in the inner cavity 47 of the sleeve 40 on the end side 41.
  • the groove 66 allows translate the cam 60 into the sleeve 40 in translation and lock it in the correct position when the device 30 is pre-assembled.
  • the cam 60 On the side of the end 62, the cam 60 has an opening 67 and a recess 68.
  • the opening 67 is formed between the wall 63 and the cavity 64. At this opening 67, one of the surfaces 632 curves towards the X60 axis.
  • the recess 68 formed in the cam 60 is provided to receive a boss 78 belonging to the crescent 70 at the end of rotation R1.
  • the recess 68 is formed in the wall 63, opening at one of the surfaces 632 and the end 62.
  • the recess 68 is framed by two stops 681 and 682.
  • the recess 68 and the boss 78 allow to physically materialize the two configurations A and B of the device 30.
  • the opening 67 allows the passage of the notch 78 during the rotation of the cam 60 driven by the key 50.
  • Crescent 70 is made of metal, for example steel.
  • the crescent 70 extends between a front end 71 and a rear end 72 along the axis X30.
  • the crescent 70 has a concave inner face 73 and a convex outer face 74.
  • the outer face 74 has a series of longitudinal ribs 75 parallel to the axis X30.
  • the outer face 74 also has a series of transverse ribs 76 which are distributed from the end 71 to the end 72, which connect the longitudinal ribs 75 and which have a curved shape.
  • the crescent 70 is an intermediate piece between the sleeve 40 and the cam 60.
  • the crescent 70 is fixed in the portion 49 of the cavity 47 of the sleeve 40 by overmolding, more precisely by injection of the material of the sleeve 40 on the crescent 70.
  • the crescent 70 is placed in a mold before injection of the material constituting the sleeve 40.
  • the crescent 70 makes it possible to maximize the volume of the sleeve 40 compressed between the support 10 and the cam 60, while protecting this sleeve 40 of the wear caused by the rotation R1 of the cam 60.
  • the crescent 70 makes it possible to take up the forces exerted by the cam 60 in locking configuration B and to distribute them in the main thrust axis, so as to deform the zone 451 of the sleeve 40.
  • the crescent 70 balances the tensions during assembly and operation, and this on a compressed surface optimized for this type of work.
  • the crescent 70 also prevents any deterioration of the sleeve 40 during the rotation R1 and R0 of the cam 60.
  • the crescent 70 also has a projection 78 formed projecting on the inner face 73 of the end end 72.
  • the boss 78 constitutes a stop that is designed to be received in the recess 68 formed in the cam 60.
  • the boss 78 extends towards the X30 axis when the device 30 is assembled.
  • the recess 68 and the boss 78 make it possible to physically materialize the two configurations A and B of the device 30.
  • the boss 78 passes the stop 681 and is housed in the recess 68, causing a characteristic sound indicating that the lock configuration B is reached.
  • the stops 681 and 682 prevent accidental removal of the boss 78 from the recess 68.
  • the stop 681 is adapted to cross the boss 78 during the rotation R1 or R0 of the cam 60, when the key 50 is rotated with sufficient torque.
  • the crescent 70 keeps the device 30 in the configuration B continued the rotation R1 of the key 50 and the cam 60 and the compression of the sheath 40, then to ensure the maintenance of the device 30 in this configuration B when the system 1 is in use. This avoids an accidental loss of the key 50 when the wear of the nose 12 no longer allows to ensure sufficient compression of the sleeve 40 in the configuration B.
  • the seals 80 and 90 are of elastically deformable material, for example rubber or any elastomer suitable for the present application.
  • the seals 80 and 90 each have a generally annular shape defined around the axis X30.
  • the joints 80 and 90 are assembled and held on the sheath 40 by clipping and gluing. After assembly, the seals 80 and 90 make it possible to ensure the overall sealing of the device 30 in the housing 14 of the support 10 and against the lugs 23 of the tooth 20.
  • the seals 80 and 90 also make it possible to absorb the deformations caused by the powering up of the device 30, including the changes of positions due to the rotation R1 or R0 of the key 50.
  • the seals 80 and 90 are not shown in FIG. figure 3 for the sake of simplification.
  • the seal 80 has an inner face 81 and an outer face 82.
  • the seal 80 has a generally annular shape, with a peripheral wall 83 and a bore 84.
  • the inner face 81 is fixed to the end 41 of the sleeve 40, by clipping and bonding in the annular groove 411.
  • the inner face 81 has a projection 85 fork-shaped, adapted to be housed in the recess 412 of the sleeve 40.
  • the seal 90 has an inner face 91 and an outer face 92
  • the seal 90 has a generally annular shape, with a peripheral wall 93 and a bore 94.
  • the inner face 91 is fixed to the end 42 of the sleeve 40, by clipping and gluing in the annular groove 421.
  • the inner face 91 comprises a protrusion 95 fork-shaped, adapted to be housed in the recess 422 of the sleeve 40.
  • the system 1 also comprises two plugs 100 and 110 of elastically deformable material, for example rubber or any elastomer suitable for the present application.
  • the plugs 100 and 110 are provided to be housed in the orifices 25 to close the housing 14 and protect the device 30 when the system 1 is in use. Like the tooth 20, these two plugs 100 and 110 are then directly subjected to the attack of external materials, such as dust, sand grains and gravel.
  • the plugs 100 and 110 are dissociated from the mechanical operation of the device 30, but have an important function within the system 1, namely to protect the supports of the key 50 in the cavity 26 of the tooth 20. In preventing the intrusion of the materials external in the orifices 25, the plugs 100 and 110 ensure that the key 50 is movable relative to the tooth 20 during the rotation R1 or R0, and the disassembly of the key 50 out of the system 1.
  • the plug 100 includes an inner face 101 and an outer face 102 connected by a border 103.
  • the face 101 comprises a bowl 104, a pin 105 and a rib 106.
  • the pin 105 is located substantially in the center of the bowl 104 and has a quadrilateral section.
  • the rib 106 extends in part at the edge of the bowl 104, being slightly curved around this bowl 104, opposite the face 101.
  • the plug 100 has a boss 107 projecting on the face 101 and the edge 103.
  • the pin 105 When the plug 100 is housed in the cavity 27 of the orifice 25 located on the side 5 of the tooth 20, the pin 105 enters the cavity 516 of the head 51 of the pin 50, the rib 106 enters the part 262 of the orifice 25 and the boss 107 enters the groove 271 provided for this purpose.
  • the boss 107 further comprises a groove 108 provided for receiving a tool, not shown for the sake of simplification, to remove the plug 110.
  • the plug 110 comprises an inner face 111 and an outer face 112 connected by a border 113.
  • the face 111 comprises a bowl 114, a pin 115 and a rib 116.
  • the pin 115 is located substantially in the center of the bowl 114 and has a quadrilateral section.
  • the rib 116 extends partly at the edge of the bowl 114, being slightly curved around this bowl 114, opposite the face 111.
  • the plug 110 has a recess 117 opening at the face 111 and the edge 113.
  • the pin 115 enters the cavity 526 of the foot 52 of the pin 50, the rib 116 enters the cavity 26 of the orifice 25 and the recess 117 receives the boss 272 provided for this purpose.
  • a first step a the device 30 is partially assembled. More specifically, a subassembly 32 comprising the sheath 40, the cam 60, the crescent 70 and the seals 80 and 90 is assembled.
  • the crescent 70 is placed in a mold before injection of the material constituting the sleeve 40, then this material is injected into the mold. In other words, the sleeve 40 is overmolded on the crescent 70.
  • the crescent 70 is positioned in the portion 49 of the cavity 47, with the face 74 positioned against the surfaces 491 and the grooves 76 positioned in the grooves 492 of the sleeve 40.
  • the cam 60 is positioned in the portion 48 of the cavity 47.
  • the surfaces 631 and 632 are positioned against the pins 484 and the surfaces 481 of the sleeve 40 with more or less clearance, as well as against the face 73 of the crescent 70.
  • the pins 484 make it possible to press the surface 631 against the face 73.
  • the joints 80 and 90 are respectively positioned at the ends 41 and 42 of the sleeve 40.
  • the subassembly 32 can be called "plug" in English.
  • a second step b the subassembly 32 is inserted into the housing 14 of the support 10, starting with the seal 90 and the end 42 of the sleeve 40.
  • the surfaces 16 and 46 facing each other form keying means, ensuring indexing of the sleeve 40 and allowing an operator to easily locate its specific initial position in the housing 14.
  • the sleeve 40 is fitted in the housing 14, with the wall 44 which is deformed slightly centripetally if necessary, especially at area 451.
  • a third step c) the tooth 20 is positioned on the support 10, with the active part 21 which is oriented so as to be able to scrape and collect materials in operation of the system 1.
  • the hollow portion 22 is fitted on the nose 12 , with complementary plans in support of each other.
  • the ears 23 are received in the housings 13 of the base 11.
  • the orifice 25 located on the side 5 reveals the cavity 64 of the cam 60 and the bore 84 of the seal 80 for the introduction of the key 50.
  • the steps b) and c) can be reversed.
  • the operator places the sleeve 40 in the support 10 before pressing the tooth 20 on the support 10.
  • a fourth step d) the key 50 is inserted into the internal cavity 64 of the cam 60, through the orifice 25 and the bore 84 of the side 5.
  • the key 50 presents a given orientation, that is to say that its introduction into the cavity 64 is always performed with the foot 52 which passes first.
  • the foot 52 enters the cavity 64 by the end 61 and leaves the cavity 64 at the end 62, the body 53 is housed in the cavity 64, while the head 51 protrudes from the cavity 64 at of the end 61. More specifically, the head 51 is positioned in the cavity 26 of the orifice 25 located on the side 5, while the foot 52 is positioned in the cavity 26 of the other orifice 25 located on the side 6.
  • the key 50 is fitted into the cam 60, directly in contact with the internal cavity 64, but the head 51 and the foot 52 do not exert any retaining forces on the tooth 20, in particular in the cavity 26 of each of the orifices 25.
  • the rounded surface 631 of the cam 60 bears against the inner face 73 of the crescent 70, whereas the flat surfaces 632 bear against the surfaces 481 of the sleeve 40, without deforming the zone 451 or negligibly .
  • X14 X30 and X40 axes are aligned, X48 and X60 axes are aligned, X50 and X64 axes are aligned and located between X40 and X48 axes.
  • a fifth step e) the operator uses at least one tool to rotate the key 50 in a 180 ° rotation R1 around the pivot axis X50, from the insertion configuration A to the locking configuration B
  • the operator uses a tool inserted in the hexagonal cavity 514 of the head 51 and a tool inserted in the hexagonal cavity 524 of the foot 52 to exert a torque around the axis X50 on the key 50.
  • the insertion configuration A to the lock configuration B is illustrated by comparing the Figures 11 to 16 .
  • the key 50 pivots in the direction of rotation R1 counterclockwise while looking from the side 5.
  • the key 50 drives the toothed cam 60 by cooperation of their elements 532, 533, 642, 643 of rotation fastening R1. Due to the eccentrics e50 and e60, the key 50 and the cam 60 change position vertically and horizontally in the cavity 47 of the sleeve 40, which is then compressed, in particular at the level of the zone 451. Also, the key 50 changes its position. bearing position on the tooth 20. More specifically, the surface 511 and the lugs 512 and 553 of the head 51 change position in the portions 261, 262 and 263 of the cavity 26 located on the side of the tooth 20, while that the foot 52 changes position in the cavity 26 located on the side 6 of the tooth 20.
  • the sleeve 40 undergoes several successive partial elastic deformations in the housing 14 during the rotation R1 of the cam 60. More specifically, the outer wall 44 and the internal cavity 47 of the sleeve 40 are deformed by the rotation of the surfaces 632 and intermediate angles formed between these surfaces 632 of the toothed cam 60. The "jolts" caused by the successive deformations allow the operator to count the turns, in addition to the visual aid provided by the marks 515 .
  • a length L50A in the configuration A and a length L50B in the configuration B are defined between the leading edge of the zone 451 and the axis X50, as shown in FIGS. Figures 11 and 14 .
  • the length L50B is greater than the length L50A.
  • the difference between the lengths L50A and L50B corresponds to the compression of the sleeve 40 in the zone 451 in the locking configuration B, this compression not being shown on the Figures 14 to 16 for the sake of simplification, while the key 50 bears against the tooth 20.
  • a sixth step f) the rotation R1 of the device 30 is stopped in the locking configuration B.
  • the key 50 drives the cam 60 in rotation R1 until the stop 681 crosses the boss 78, which then comes housed in the recess 68, between the stops 681 and 682.
  • the boss 78 is a detent of the key 50 and the cam 60 in locking configuration B, stopping the rotation R1.
  • the mark 515 corresponding to the configuration B is then positioned opposite the mark 235 situated on the ear 23 of the side 5.
  • the correct positioning of the cam 60 in the cavity 47 of the sleeve 40 is also ensured by the cooperation between the internal face 73. of the crescent 70 and the surfaces 632 of the cam 60.
  • the axes X14, X30, X40, X48, X50, X60 and X64 remain parallel to each other, both the insertion configuration A and in the locking configuration B.
  • the key 50 bears against the tooth 20, while the sleeve 40 presses in the housing 14 of the support 20, forming a coupling connection between the tooth 20 and the support 10.
  • the cavities 26 of the tooth 20 enter the change of position and the horizontal thrust of the key 50 in a direction radial to the axis X50, directed from the front 2 to the rear 3 along the axis X1, without generating horizontal forces parallel to the X50 axis, nor radial vertical thrust at the X50 axis.
  • the sleeve 40 is deformed under the pressure of the crescent 70 and the 60, in particular in the area 451.
  • the portion 22 of the tooth 20 is held firmly in the position of use by both the locking device B in the locking configuration B, by the nose 12 and by the walls of houses 13 receiving ears 23.
  • a step g) disassembly the operator can use at least one tool, preferably two tools, to rotate the device 30 in the direction of rotation R0 inverse to the direction of rotation R1.
  • the forces exerted by the device 30 on the tooth 20 and the support 10 relax from the locking configuration B to the insertion configuration A.
  • the device 30 can be removed from the system 1, eliminating the connection of coupling between the tooth 20 and the support 10.
  • the device 30 allows disassembly of the tooth 20 without hammer, after wear thereof, by reverse operations to the mounting.
  • FIG. 17 to 28 are represented the constituent elements of a connecting device 130 according to a second embodiment of the invention.
  • the device 130 comprises a sheath 40, a key 150, a toothed cam 160, a crescent 170, as well as two seals 80 and 90.
  • the device 130 has four distinct locking configurations B1, B2, B3 and B4, which depend on the R1 rotation of the key 150 and the toothed cam 160, and therefore the evolution of the cam of the cam 160 in the cavity 47 of the sleeve 40. These configurations B1, B2, B3 and B4 define progressive compression values of the sheath 40.
  • the key 150 and the cam 160 When locking the device 130, to move from the configuration A to the configuration B1, the key 150 and the cam 160 perform a rotation R1 at 45 °. Subsequently, between the configurations B1 and B2, then B2 and B3, then B3 and B4, the key 150 and the cam 160 also perform a rotation R1 at 45 °.
  • the insertion configuration A is shown to figures 19 , 23 and 24
  • the locking configurations B1, B2, B3 and B4 are respectively shown to Figures 25 to 28 .
  • the toothed cam 160 comprises an outer wall 163 and an internal cavity 164 connected by an opening 167.
  • the wall 163 has seven flat surfaces 1632, but no rounded surface.
  • the cavity 164 has three adjacent flat surfaces 1642, and two ribs 1644 diametrically opposed, which extend along the axis X60.
  • the ribs 1644 line the opening 167, which passes through the cam 60 along its entire length, between the ends 61 and 62.
  • a rib 1643 is formed on a portion of each of the surfaces 1642 bordering the grooves 1534, on the end side. 62.
  • the ribs 1644 are wider and more elongated than the ribs 1564.
  • the surfaces 1632 of the toothed cam 160 define specific and specific positioning values for each notch position, ie each lock configuration B1, B2, B3 and B4. It is mainly the changes in position of these surfaces 1632 that allow the distances between the axes X40, X50 and X60 to be changed during the rotation R1 of the key 150, thus ensuring that the wear games are compensated by compression. scalable with each change of notch, that is to say, each lock configuration B1, B2, B3 and B4.
  • the crescent 170 comprises an outer face 74 and an internal face 173 which does not have a projection 78. With this difference, the crescent 170 has a similar operation to the crescent 70. The crescent 170 makes it possible in particular to physically materialize the correct position of the crescents. notches of the cam 160 in each of the locking configurations B1, B2, B3 and B4.
  • each locking configuration B1, B2, B3 and B4 corresponding to a given compression of the sleeve 40 against the wall of the housing 14.
  • the invention offers the possibility of switching to the second locking configuration B2, so as to compensate for the matting of the support 10 that the first lock configuration B1 can no longer compensate.
  • the device 130 then makes it possible to put the system 1 back under tension, with values as important as during the initial power-up. Subsequently, the device 130 can go to the configuration B3, then to the configuration B4.
  • the key 150 and the cam 160 pivot at a given angle between each locking configuration B1 to B4, in this case an angle equal to 45 degrees on the example of the Figures 24 to 28 .
  • the axis X60 of the cam 160 shifts forwardly 2, so that this cam 160 bears against the crescent 170 and the sleeve 40 in the area 451.
  • the key 150 bears against the tooth 20 so that its axis X50 does not shift either forwardly 2 or towards the rear 3, but is mobile with a slight vertical deflection.
  • L150A, L150B1, L150B2, L150B3, L150B4 between the front edge of the zone 451 and the axis X50, respectively corresponding to the configurations A and B1 to B4, as shown in FIGS.
  • the tooth 20 has a single opening 25 open on one of the sides 5 or 6, for the insertion of the key 50 or 150, but not on the other side of the tooth 20.
  • the device 30 comprises a single seal 80 or 90 and the system 1 comprises a single plug 100 or 110.
  • the cam 60 or 160 has a generally circular or oval and non-polygonal section.
  • the outer wall 63 or 163 is smooth, without flat surfaces.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Shovels (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Mechanical Sealing (AREA)
  • Earth Drilling (AREA)

Claims (15)

  1. Mechanisches System (1), umfassend eine Halterung (10), ein Verschleißteil (20) und eine Vorrichtung (30; 130) zur Verbindung zwischen dem Verschleißteil (20) und seiner Halterung (10), insbesondere einem Baggerschaufelzahn (20) und seiner Halterung (10), die zu einem Arbeitsgerät (G) einer Tiefbaumaschine gehören, wobei die Verbindungsvorrichtung (30; 130) Folgendes umfasst:
    - eine Hülse (40) aus elastisch verformbarem Material, die mit einem inneren Hohlraum (47) und einer Außenwand (44) versehen ist, die in eine Aufnahme (14) der Halterung (10) einpassbar ist, und
    - eine Passfeder (50; 150), die einen Körper (53; 153) aufweist, der sich in Richtung einer Achse der Passfeder (X50) erstreckt,
    wobei das mechanische System (1) dadurch gekennzeichnet ist, dass die Verbindungsvorrichtung (30; 130) auch einen Nocken (60; 160) umfasst, der mit einer Außenwand (63; 163), die in den inneren Hohlraum (47) der Hülse (40) einpassbar ist, und mit einem inneren Hohlraum (64; 164) versehen ist, der vorgesehen ist, um die Passfeder (50; 150) aufzunehmen,
    und dadurch, dass wenn die Verbindungsvorrichtung (30; 130) in der Aufnahme (14) der Halterung (10) positioniert ist, die Passfeder (50; 150) und der Nocken (60; 160) drehfest miteinander verbunden (R1; R0) im inneren Hohlraum (47) der Hülse (40) beweglich sind zwischen:
    - einer Konfiguration der Einfügung (A) der Passfeder (50; 150) in den Nocken (60; 160), und
    - wenigstens einer Verriegelungskonfiguration (B; B1, B2, B3, B4), in der die Passfeder (50; 150) radial zur Achse der Passfeder (X50) an dem Verschleißteil (20) anliegt, während der Nocken (60; 160) an der Hülse (40) anliegt und ihre Außenwand (44) gegen die Aufnahme (14) der Halterung (10) verformt, wodurch eine Kopplungsverbindung zwischen dem Verschleißteil (20) und der Halterung (10) gebildet wird.
  2. Mechanisches System (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Passfeder (50) und der Nocken (60) drehfest miteinander verbunden (R1; R0) im inneren Hohlraum (47) der Hülse (40) zwischen der Einfügekonfiguration (A) und der einzigen Verriegelungskonfiguration (B) beweglich sind, indem sie mit einem gegebenen Winkel, zum Beispiel einem Winkel von gleich 180 Grad, geschwenkt werden.
  3. Mechanisches System (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Verbindungsvorrichtung (30) Mittel (68; 78) zum Verrasten des Nockens (60) in der Verriegelungskonfiguration (B) aufweist.
  4. Mechanisches System (1) nach Anspruch 3, dadurch gekennzeichnet, dass die Mittel (68; 78) zum Verrasten durch eine Aussparung (68), die am Nocken (60) vorgesehen ist, und einen Buckel (78) gebildet sind, der in einem anderen Element (70) gebildet ist, das ein Bestandteil der Verbindungsvorrichtung (30) ist.
  5. Mechanisches System (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Passfeder (150) und der Nocken (160) drehfest miteinander verbunden (R1; R0) im inneren Hohlraum (47) der Hülse (40) zwischen mehreren Verriegelungskonfigurationen (B1, B2, B3, B4) beweglich sind, indem sie mit einem gegebenen Winkel, zum Beispiel einem Winkel von gleich 45 Grad, zwischen jeder Verriegelungskonfiguration (B1, B2, B3, B4) geschwenkt werden.
  6. Mechanisches System (1) nach Anspruch 5, dadurch gekennzeichnet, dass die Verbindungsvorrichtung (130) Mittel (481; 1632) zum Verrasten des Nockens (160) in jeder der Verriegelungskonfigurationen (B1, B2, B3, B4) aufweist.
  7. Mechanisches System (1) nach Anspruch 6, dadurch gekennzeichnet, dass die Mittel (481; 1632) zum Verrasten durch ebene Innenflächen (481), die zur Hülse (40) gehören, und ebene Außenflächen (1632), die zum Nocken (160) gehören, gebildet sind.
  8. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindungsvorrichtung (30; 130) auch ein Zwischenstück (70; 170) umfasst, das im inneren Hohlraum (47) der Hülse (40) an dem Nocken (60; 160) anliegend angeordnet ist, wobei dieses Zwischenstück (70; 170) eine an der Außenwand (63; 163) des Nockens (60; 160) anliegende Innenseite (73; 173) und eine an der Innenwand (47) der Hülse (40) anliegende Außenseite (74) aufweist.
  9. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindungsvorrichtung (30; 130) auch Folgendes umfasst: wenigstens eine Ringdichtung (80; 90), die dafür geeignet ist, an einem Längsende (41; 42) der Hülse (40) angeordnet zu werden, vorzugsweise zwei Ringdichtungen (80; 90), die dafür geeignet sind, jeweils an einem Längsende (41; 42) der Hülse (40) angeordnet zu werden, und dass in der Einfügekonfiguration (A) und in der oder den Verriegelungskonfigurationen (B; B1, B2, B3, B4) die oder jede Ringdichtung (80; 90) gleichzeitig an der Halterung (10), dem Verschleißteil (20), der Hülse (40) und der Passfeder (50) anliegt.
  10. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es auch Folgendes umfasst: wenigstens einen Pfropfen (100; 110), der dafür geeignet ist, in einer Öffnung (25) des Verschleißteils (20) angeordnet zu werden, die gegenüber der Aufnahme (14) der Halterung (10) zu liegen kommt, wenn das Verschleißteil (20) an der Halterung (10) montiert wird, vorzugsweise zwei Pfropfen (100; 110), die dafür geeignet sind, jeweils in einer Öffnung (25) des Verschleißteils (20) angeordnet zu werden, wobei der oder jeder Pfropfen das Eindringen von externen Materialien in den Bereich um die Passfeder (50; 150) und in die Aufnahme (14) der Halterung (10) verhindert.
  11. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Passfeder (50; 150) einen Kopf (51; 151) und einen Fuß (52) aufweist, die dafür geeignet sind, jeweils in einem Hohlraum (26) des Verschleißteils (20) untergebracht zu werden, und dass in der oder jeder Verriegelungskonfiguration (B; B1, B2, B3, B4) der Kopf (51; 151) und der Fuß (52) radial zur Achse der Passfeder (X50) in einer ersten Richtung an einem der Hohlräume (26) des Verschleißteils (20) anliegen, während der Körper (53; 153) radial zur Achse der Passfeder (X50) in einer zweiten Richtung, die der ersten Richtung entgegengesetzt ist, an dem Nocken (60; 160) anliegt.
  12. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Passfeder (50; 150) Mittel (512, 513) zur doppelten axialen Arretierung gemäß der Achse der Passfeder (X50) in der oder jeder Verriegelungskonfiguration (B; B1, B2, B3, B4) aufweist.
  13. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Passfeder (50; 150) und der Nocken (60; 160) Mittel (532, 533, 642, 643; 1532, 1533, 1534, 1642, 1643, 1644) zur Drehverbindung (R1; R0) umfassen.
  14. Mechanisches System (1) nach Anspruch 13, dadurch gekennzeichnet, dass die Mittel (532, 533, 642, 643; 1532, 1533, 1534, 1642, 1643, 1644) zur Drehverbindung (R1; R0) durch komplementäre Rippen und Nuten gebildet sind, die an der Passfeder (50; 150) und dem Nocken (60; 160) vorgesehen sind.
  15. Schaufel (G) für eine Tiefbaumaschine, dadurch gekennzeichnet, dass sie wenigstens ein mechanisches System (1) nach einem der Ansprüche 1 bis 14 umfasst.
EP14766999.8A 2013-09-20 2014-09-18 Mechanisches system mit verbindungsvorrichtung zwischen einem verschleissteil und stütze dafür sowie schaufel einer tiefbaumaschine Active EP3047074B1 (de)

Applications Claiming Priority (2)

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FR1359079A FR3011013B1 (fr) 2013-09-20 2013-09-20 Systeme mecanique comprenant un dispositif de liaison entre une piece d'usure et son support, et godet d'engin de travaux publics
PCT/EP2014/069869 WO2015040101A1 (fr) 2013-09-20 2014-09-18 Systeme mecanique comprenant un dispositif de liaison entre une piece d'usure et son support, et godet d'engin de travaux publics

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EP3047074A1 EP3047074A1 (de) 2016-07-27
EP3047074B1 true EP3047074B1 (de) 2018-02-21

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AR (1) AR097716A1 (de)
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IT201900022563A1 (it) * 2019-11-29 2021-05-29 Italtractor Componente di macchina operatrice
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FR2979647B1 (fr) * 2011-09-01 2013-10-04 Afe Metal Systeme mecanique comprenant un dispositif de liaison entre une piece d'usure et son support, godet d'engin de travaux publics et procede de mise en oeuvre d'un tel systeme

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FR3011013A1 (fr) 2015-03-27
KR102246372B1 (ko) 2021-04-29
JP2016530420A (ja) 2016-09-29
EP3047074A1 (de) 2016-07-27
US9920503B2 (en) 2018-03-20
AU2014323143A1 (en) 2016-04-07
AR097716A1 (es) 2016-04-13
CN105723034A (zh) 2016-06-29
FR3011013B1 (fr) 2015-10-30
CA2924223C (fr) 2021-09-14
CN105723034B (zh) 2018-12-18
KR20160056894A (ko) 2016-05-20
RU2667173C2 (ru) 2018-09-17
BR112016006022A2 (pt) 2017-08-01
WO2015040101A1 (fr) 2015-03-26
JP6448650B2 (ja) 2019-01-09
ES2667427T3 (es) 2018-05-10
US20160319520A1 (en) 2016-11-03
RU2016109977A (ru) 2017-09-21
AU2014323143B2 (en) 2017-11-30
MX2016003595A (es) 2016-08-19
CL2016000648A1 (es) 2016-11-04
CA2924223A1 (fr) 2015-03-26
BR112016006022B1 (pt) 2021-10-05

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