EP3292250A1 - Dispositif, système et procédé de protection d'une arête de godet - Google Patents
Dispositif, système et procédé de protection d'une arête de godetInfo
- Publication number
- EP3292250A1 EP3292250A1 EP16720838.8A EP16720838A EP3292250A1 EP 3292250 A1 EP3292250 A1 EP 3292250A1 EP 16720838 A EP16720838 A EP 16720838A EP 3292250 A1 EP3292250 A1 EP 3292250A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- shim
- angular position
- window
- axis
- 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
Links
- 238000000034 method Methods 0.000 title claims description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 72
- 230000003993 interaction Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 9
- 230000000295 complement effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 230000036961 partial effect Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- E02F9/24—Safety devices, e.g. for preventing overload
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
Definitions
- the present invention relates to a device for protecting a cup edge, and a protection system comprising such a device.
- the present invention also relates to a method of protecting a cup edge with the aid of such a protection system.
- the field of application of the invention is that of equipment of public works machinery or mine extraction equipment, in particular buckets, buckets or other receptacles equipped on such machines, or more generally any other receptacle susceptible to scrape, remove and / or move materials for evacuation from a given location to other operating posts.
- such machines can be in the form of for example a backhoe, an excavator, a backhoe loader, or any construction machine of the same type.
- this type of machine can be for example a loader, a LHD ("load-haul-dump"), or any other machine of the same type.
- a bucket forms a tray with an access opening which is generally rectangular in shape.
- the edges defining the opening generally form an attacking blade, an upper blade and two lateral wings.
- the ridges in question, and in particular the cutting blade, generally need to be protected by wear parts that are removably mounted to cover the ridges in question.
- These known wear parts form for example bucket teeth, or shields.
- the bucket is generally equipped with adapter brackets that are welded or screwed to the bucket, the wear parts being designed to be mounted on the adapter brackets.
- WO 2005/098149 proposes a wear assembly for an excavation bucket.
- the wear part is designed to be slidable on a support-adapter integral with the bucket.
- the wear part has an opening, which, when the wear part is assembled on the support-adapter, opens on a hollow form of the support-adapter.
- the assembly also includes a fastening means formed by a body received in the opening of the wear part, so as to be able to fit in the opening of the support-adapter and thus secure the wear part with the support -adapteur.
- the fixing means in question is provided with a threaded hole which can receive a threaded rod. By screwing, the end of the latter can be brought into close contact with a receiving surface of the opening of the wear part.
- the fixing means is fixed in the opening by wedging under the tightening pressure of the screw.
- the object of the invention is to remedy the various disadvantages mentioned above and to propose a new device for protecting a bucket edge whose mounting on the bucket is both reliable, easy and fast.
- the subject of the invention is a device for protecting an edge of a bucket of a working or extraction machine, the bucket comprising a rail for receiving the protection device, a retaining slot for the device for protection being provided in the rail.
- the protection device of the invention comprises a ridge protector, which is adapted to be slid on the slide rail along a sliding axis to a ridge protection configuration, a window being provided through the protective part so that, in protective configuration, the window opens into the retaining slot.
- the protection device of the invention also comprises a shim which is designed to be mounted within the window so as to be housed, in a protective configuration, in the retaining slot, in order to block the sliding of the protective piece. relative to the rail and thus secure the latter with each other.
- the protection piece comprises at least one locking stop disposed at the periphery of the window, the protection device comprising a locking key movable relative to the shim about a pivot axis, between a first angular position, in which it allows the assembly and disassembly of the wedge in the window and a second angular position, in which the key abuts against the locking stop and thus prohibits dismantling of the hold.
- a locking stop within the window against which the rotary key, when in a suitable orientation, bears.
- the abutment of these two elements against each other advantageously allows to ensure the locking of the wedge in its housing, which is formed by the window and the retaining slot, without the need for clamping.
- the key when it is in another direction, it does not abut against the lock stop and no longer opposes the assembly or disassembly of the hold.
- a rotation of the key around an angle less than a full turn allows a user to operate a locking or unlocking of the wedge in its housing, so that the assembly and disassembly of the protective part on the rail are easy, fast and reliable.
- the key includes a head projecting from the wedge and in a portion of which is hollowed a passage slot, the remaining portion of the head forming a stop finger, the protective part comprising a notch for receiving the head when the shim is mounted within the window, the receiving notch extending from an entrance neck at which the section of the notch is reduced to form the locking abutment, so that :
- the stop finger when the key is in its first angular position, the stop finger is oriented so as to cross the entrance neck during assembly or disassembly of the hold and that
- the key comprises a lug which extends radially relative to the pivot axis outside the shim, the protective part comprising a radial stop which forms the locking abutment, the radial stop being disposed in the protection piece so as to extend radially with respect to the key when the shim is mounted, so that:
- the lug when the key is in the first angular position, the lug is spaced from the radial stop so that the wedge can be freely disassembled and that - When the key is in the second angular position, the lug abuts against the radial stop and thus opposes the disassembly of the wedge.
- the radial stop forms a detent notch of the lug, so that when the wedge is mounted, a pivoting of the key to the second angular position allows to engage the lug in the latching notch and pivoting the key to the first angular position releases the lug from the detent.
- the wedge comprises a start stop against which the lug is in abutment when the key is in its first angular position to limit the angular travel of the key to the first angular position.
- the key comprises a substantially cylindrical clamping cam defining a cam axis which is parallel to the pivot axis but not coaxial with the latter, so that a pivoting of the key from the first angular position to the second angular position causes an eccentric displacement of the cam about the pivot axis, the protection piece comprising a bearing surface which extends in a plane substantially orthogonal to the sliding axis, so that:
- the key comprises a longitudinal body and a sleeve made of a softer material than the longitudinal body, in which the longitudinal body is inserted integrally in rotation, the wedge comprising a bore coaxial with the pivot axis and within which the longitudinal body and its sheath can be inserted to form a pivot connection of the key relative to the shim about the pivot axis, the sheath and the bore being adjusted so as to oppose the pivoting of the key relative to the wedge around the pivot axis.
- the sleeve and the bore have a substantially cylindrical complementary shape, preferably of polygonal base, which is coaxial with the pivot axis so as to oppose the pivoting of the key relative to the wedge around the axis pivoting.
- the sheath is adhered to the longitudinal body.
- the protection part comprises a retaining groove disposed at the periphery of the window opposite the locking abutment, the wedge comprising a crest of retainer adapted to be inserted into the retaining groove when the shim is mounted, so that when the key is in its second angular position, the shim is retained mounted within the window on the one hand by the locking abutment and on the other hand by the retaining groove.
- the key includes an interaction fingerprint with a tool, so that the key can be pivoted around the pivot axis by means of the tool via the interaction fingerprint, the workpiece guard having an access port to the interaction footprint, so that the key can be pivoted via its interaction finger with the tool from outside the shield when the hold is mounted, the protection device preferably comprising a means for closing the access orifice of the cap or lid type.
- the subject of the invention is also a system for protecting an edge of a working or extraction machine bucket, the protection system comprising a protection device as defined above, as well as a guard rail. receiving the protection device which is designed to be secured to the bucket, a retaining slot of the protective device being formed in the rail.
- the subject of the invention is a method of protecting an edge of a bucket by means of the protection system defined above and in which the steps of:
- FIG. 1 is an exploded perspective view of a protection system comprising a protection device according to the invention
- FIG. 2 is a perspective view, from another angle, of the protection system of FIG. 1, which is shown in another configuration;
- - Figure 3 is a perspective view at the same angle as that of Figure 2, the protection system being shown in a different configuration from that of Figure 2;
- - Figure 4 is a partial longitudinal section along the line IV-IV in Figure 9 of a protective member belonging to the protective device of Figures 1, 2 and 3;
- FIG. 5 is a partial longitudinal section of the protective part of Figure 4 along the line V-V in Figure 9;
- FIG. 6 is a partial longitudinal section of a portion of the protective device of the preceding figures, along a line VI-VI in Figure 9, before placing the wedge in the window;
- FIGS. 7 and 8 are partial longitudinal sections of a portion of the protective device, along a line VII-VII in Figure 9, which is shown respectively in different configurations;
- FIG. 9 is a cross section along a line IX-IX in Figure 4, the protection system of the preceding figures; the above-mentioned section lines IV-IV, V-V, VI-VI, VII-VII are shown;
- FIG. 10 is a perspective view of the locking key of the protective device of the preceding figures.
- FIG. 1 is a perspective view of a portion of the locking key
- FIG. 12 is a perspective view of the shim of the protective device of the preceding figures.
- FIGS. 13 and 14 are front views of the locking key mounted on the hold, the locking key being shown in two different angular positions;
- FIG. 15 is a perspective view of a bucket equipped with protection systems according to the invention, one of these, located in the center of the bucket driving blade, being shown exploded.
- FIG. 1 to 15 illustrate a system for protecting an edge 58 of a bucket 56 of a working machine or extraction.
- Bucket refers to equipment of public works machinery or mining machinery.
- the term “bucket” can be generalized to bins and other receptacles fitted on such machines, so that the term “bucket” refers to any receptacle capable of scraping, taking and / or moving materials, preferably coming from the ground, with a view to their evacuation from a given place to other operating posts.
- the bucket 56 forms a tray with an access opening which is for example of rectangular shape. The access opening is delimited by projecting ridges 58, 60, 62 and 64 that the protection system of FIG. 1 is intended to protect.
- the protection system represented in FIGS. 1 to 15 comprises a protection device 1 for the edge 58 of the bucket 56.
- This protection system also comprises a rail 2 for receiving the protection device 1.
- the rail 2 sometimes called “support-adapter”, is designed to be secured to the bucket 56, in an arrangement that allows to position the protective device 1 in a protective configuration of the edge 58.
- the rail 2 has geometrically a sliding axis X2, along which the protection device 1 can be threaded.
- the rail 2 is generally positioned on an inner face of the bucket 56, the sliding axis X2 being perpendicular to the edge 58 to be protected.
- the rail 2 comprises successively, along the sliding axis X2:
- an attachment zone 12 through which the rail 2 is intended to be secured to the cup 56, for example by welding or by bolting,
- the rail 2 also comprises two protruding ribs 13 for sliding which extend parallel to the sliding axis X2, symmetrically with respect to the latter, from the projecting end. 1 1 to the retaining slot 3.
- the projecting end 1 1 of the rail 2 thus has a male shape dovetail.
- the retaining slot 3 is advantageously formed by a crest base 14 which extends parallel to the sliding axis X2, an upstream wall 15 and a downstream wall 16 which are substantially orthogonal to the sliding axis X2.
- the upstream wall 15 is located on the side of the base end 10, while the downstream wall 16 is located opposite the upstream wall with respect to the retaining slot 3, that is to say on the side of the the protruding end 1 1.
- the protective device 1 also comprises a piece 4 for protecting the edge 58, a shim 5 and a locking key 9.
- the protective piece 4 which is shown in full in FIGS. 1, 2 and 3 and in partial section in FIGS. 5 to 9, forms a wear part, which can be described as "Shield”, intended to cover and protect itself the edge 58 of the bucket 56. It is for example made of metal, of the steel or cast iron type.
- the shielding piece 4 or shield extends along a longitudinal axis X4 and comprises a main body 21.
- a transverse axis X6 is defined which is orthogonal to the longitudinal axis X4.
- the main body 21 has a generally symmetrical shape with respect to a plane orthogonal to the transverse axis X6 and comprising the longitudinal axis X4.
- the protective piece 4 comprises successively along the longitudinal axis
- leading edge 17 which extends parallel to the transverse axis X6,
- plateau surface 19 which extends in a plane parallel to the longitudinal axis X4 and to the transverse axis X6, the plateau surface 19 extending the upper surface 18,
- a stern surface 20 which extends with a convergent slope towards the axis X4 from the plateau surface 19 and forms the end of the protective part 4 opposite to the leading edge 17.
- the upper surface 18, the plateau surface 19 and the stern surface 20 delimit the top of the main body 21.
- the protective part 4 also comprises lateral edges 22 delimiting the main body 21 in the direction of the transverse axis X6.
- the protective piece 4 further comprises an inner surface 23, visible for example in Figures 4 to 9, the inner surface 23 defining the underside of the main body 21 and extending at a distance and substantially parallel to the stern surface 20 at the plateau surface 19 and the upper surface 18.
- the main body 21 of the protective part 4 is preferably of a generally constant thickness.
- the protective part 4 finally comprises a sole 24 which is visible in particular in Figures 1, 2, 3 and 9.
- the sole 24 projects from the main body 21, from the inner surface 23 and the leading edge 17, in a direction substantially parallel to the longitudinal axis X4.
- An interstitial notch 54 is thus formed between the soleplate 24 and the inner surface 23 of the main body 21.
- the protective part 4 also comprises a sliding groove 25, which extends in the direction of the longitudinal axis X4 from the stern surface 20 and which is formed along the inner surface 23 facing the surface 19.
- the sliding groove 25 has a section, in a plane orthogonal to the longitudinal axis X4, female dovetail, complementary to that of the projecting end 1 1 of the rail 2.
- the lateral edges 22 are substantially parallel to each other and to the longitudinal axis X4.
- the connecting portion 26 has a width, defined parallel to the transverse axis X6, which is advantageously less than the width of the remainder of the main body 21.
- the soleplate 24 itself has a width comparable to, or equal to, the width of the connecting portion 26.
- the protective part 4 also comprises a window 6, which is formed through this protection piece 4, in this case in the connecting portion 26 of the main body 21, in a direction orthogonal to the longitudinal axis X4 and to the transverse axis X6, starting from the plateau surface 19, so as to open at the inner surface 23 and more particularly in the sliding groove 25.
- the window 6 preferably has a section of generally rectangular shape in a plane defined by the longitudinal axis X4 and the transverse axis X6 and extends symmetrically on either side of a plane orthogonal to the transverse axis X6 and comprising the longitudinal axis X4, the length of the rectangular section of the window 6 being substantially parallel to the leading edge 17.
- the window 6 thus opens, on the one hand, at the level of the plateau surface 19, it is that is to say on the top of the protective part 4 and, on the other hand, in the interstitial notch 54.
- the window 6 is also particularly visible in FIGS. 4 and 5. It is observed in these figures that the sliding groove 25 extends along the longitudinal axis X4 from the stern surface 20 to an end surface 27 which is located beyond the window 6, on the leading edge 17 side.
- the window 6 is delimited by two transverse walls 30 of the protective part 4, opposite and directed parallel to the transverse axis X6.
- the window 6 is also delimited by two longitudinal walls 31 of the protection part 4, which are of shorter length compared to the transverse walls 30 and which extend parallel to the longitudinal axis X4.
- the protective part 4 is designed to be threaded onto the sliding rail 2 according to the sliding axis X2 of the rail 2.
- the sliding groove 25 is threaded onto the rail 2 by the projecting end 1 1, the projecting ribs 13 for guiding the dovetail shape of the sliding groove 25.
- the translation of the protective part 4 along the axis X2 is made to a protection configuration of the edge 58, in which the edge 58 in question is taken between the inner surface 23 and the sole 24, to the bottom of the Interstitial notch 54.
- the window 6 opens into the retaining slot 3.
- the upstream wall 15 and the downstream wall 16 are substantially aligned with the transverse walls 30 of the window 6.
- the crenellated base 14 is, for its part, visible from the outside of the protective part 4 through the window 6.
- the sliding axis X2 and the longitudinal axis X4 are superimposed.
- the transverse axis X6 is advantageously parallel to the edge 58 of the bucket 56.
- the connecting portion 26 substantially covers the entire rail 2, as can be seen in particular in FIGS. 2 and 3.
- the stern surface 20 comes advantageously in the extension of the surface forming the base end 10 to form a single visible surface, as can be seen in FIG. 3.
- the plateau surface 19 is oriented towards the inside of the bucket 56, while the sole 24 is oriented towards the periphery of the bucket 56.
- the opposite situation can be considered.
- the projecting end 1 1 comes into contact with or near the end surface 27 of the inside of the sliding groove 25, which can be seen in FIG.
- the protective device 1 also comprises a shim 5 which is shown alone in FIG. 12, but which is also visible in FIGS. 1, 2 and 3 in place within the protective device 1.
- the wedge 5 has a generally parallelepipedal shape and forms a wedge body which extends between two opposite lateral faces 35 and substantially parallel to each other, the lateral faces 35 being interconnected by a plateau face 36, on the one hand and a lower face 37, on the other hand, the plate face 36 and the lower face 37 being opposite and substantially parallel to each other.
- the wedge 5 comprises two opposite and parallel end faces 38 which form the two remaining sides of the parallelogram shape of the wedge 5.
- the plate face 36 advantageously extends, as shown in FIG. 12, beyond the end faces 38, so as to form two transverse edges 40.
- the wedge 5 comprises a bore 39 which passes right through the wedge body so as to open on either side of said wedge body, at the end faces 38.
- the bore 39 extends along a pivot axis X5 defined by the shim 5 with which it is coaxial.
- the bore 39 advantageously has a substantially cylindrical shape, in this case with a hexagonal base, the hexagonal base being centered on the pivot axis X5.
- the wedge 5 also comprises a retaining ridge 41 which projects from the shim body in the direction of the pivot axis X5, at the junction between a first end face 38 and the lower face 37. retained 41 advantageously extends over the entire length of the edge connecting the first end face 38 concerned and the lower face 37.
- a stroke start stop 42 is provided on the wedge 5, in the form of an element projecting from the second end face 38, opposite to the first end face 38, and extending from the transverse edge 40 to the edge of the bore 39.
- the start-of-travel stop 42 thus forms a wall 422 which extends in the continuity of one of the ends of the hexagonal shape of the bore 39.
- the wedge 5 is advantageously made of a metallic material. Alternatively, it may be made of a synthetic material such as a polymer.
- the protection device 1 also comprises a locking key 9 which is shown independently in FIGS. 10 and 11.
- the key 9 extends longitudinally along a proper axis X9.
- the key 9 includes a head 43 which forms a first of its ends along the own axis X9.
- the head 43 preferably has a substantially cylindrical peripheral contour with a circular base and coaxial with the proper axis X9.
- a passage slot 44 is hollowed out in a portion of the head 43, as can be seen in particular in FIGS. 10, 11, 13 and 14.
- the passage slot 44 is bordered by a surface 44A perpendicular to the axis X9, which is arranged in the head 43 and which is set back, on the side of a longitudinal body 47 of the key 9, relative to the end of the head 43 opposite the body 47.
- the remaining portion of the head 9 then forms an abutment finger 45 which constitutes a cylinder portion coaxial with the proper axis X9 and forms part of the periphery of the head 43.
- the key 9 includes an interaction fingerprint 46, which is formed in the head 43.
- the interaction fingerprint 46 is designed to allow the interaction of the key 9 with a tool not shown, so that the key 9 can be rotated about its own axis X9 with the aid of the tool via the interaction fingerprint 46.
- the longitudinal body 47 extends along the own axis X9 from the head 43.
- the longitudinal body 47 has a generally cylindrical shape coaxial with the axis X9.
- the longitudinal body 47 has a protruding rib 48 which extends radially with respect to the longitudinal body 47 and parallel to the own axis X9.
- the longitudinal body 47 is preferably made of a metallic material.
- the key 9 further comprises a sleeve 49 which appears in FIG. 10 and which is omitted in FIG.
- the sheath 49 is preferably made of a flexible material.
- flexible material is meant that the sleeve 49 is made of a material that is more flexible than that of the longitudinal body 47, this flexible material being, for example, an elastomer.
- the sleeve 49 forms a sleeve, within which the longitudinal body 47 is integrally inserted in rotation about the proper axis X9.
- connection between the longitudinal body 47 and the sleeve 49 is obtained by the presence of a longitudinal groove, not shown, which is formed in the sleeve 49 and which receives the rib 48, so that a relative rotation of the sleeve 49 relative to the longitudinal body 47 is blocked.
- the sleeve 49 is adhered to the longitudinal body 47, in particular glued or welded thereto.
- the sheath 49 has a substantially cylindrical shape, preferably hexagonal base, the base being centered on the proper axis X9 or on an axis parallel to the axis X9.
- the key 9 comprises a lug 50, which is visible in FIGS. 7 and 8, and 10 to 14.
- the lug 50 extends radially outwards with respect to the own axis X9 and makes, in particular , projection of the head 43.
- the key 9 is mounted movable relative to the shim 5 around the pivot axis X5, which is then coaxial with the own axis X9 of the screw 9 and the sleeve 49
- the longitudinal body 47 and the sleeve 49 are inserted into the bore 39 to create a strong pivot connection of the key 9 relative to the shim 5.
- the sleeve 49 and the bore 39 have complementary shapes, in this case hexagonal, these forms being coaxial with the pivot axis X5, so as to oppose the pivoting of the key 9 relative to the shim 5 about the pivot axis X5.
- the sleeve 49 and the bore 39 are adjusted so as to oppose, for example by friction and / or complementarity of shapes, the pivoting of the key 9 relative to the wedge 5 around the pivot axis X5.
- the shape of the bore 39 and the sleeve 49 may be cylindrical with a circular base, the sleeve 49 then being mounted tightly in the bore 39 to obtain a similar result. Nevertheless, the polygonal section complementary shapes which give better results are preferred.
- the head 43 protrudes out of the shim 5, as illustrated in FIGS. 2, 6, 13 and 14. In the present case, the head 43 projects from the second end face 38 which includes the stop of FIG. start of the race 42.
- the pivoting of the key 9 takes place between a first angular position which is represented in FIG. 13 and a second angular position which is represented in FIG. 14.
- the lug 50 is intended to abut against the stop of the beginning of stroke 42 when the key 9 is in its first angular position, as shown in Figure 13, which limits the angular travel of the key 9 about the axes X5 and X9, so that it extends. not beyond the first angular position.
- the angular difference between the first angular position and the second angular position is about 180 °, that is to say a half-turn.
- the key 9 has an angular stroke of greater amplitude, for example three quarters of a turn, or less, for example a quarter turn.
- the wedge 5 is designed to be mounted, equipped with the key 9, within the window 6.
- the steps of mounting the wedge 5 are shown in Figures 1, 2 and 3.
- the wedge 5 is mounted within the window 6 in the protective configuration, so as to be housed at the same time in the window 6 and the retaining slot 3, which makes it possible to block the sliding of the protective part 4 relative to the rail 2 and thus to secure the latter with each other.
- the shim 5 locks in the manner of a pin the translation of the protective part 4 along the axis of sliding X2, the upstream and downstream walls 15 15 abutting against the lateral faces 35 of the shim 5.
- the lateral faces 35 of the wedge 5 are preferably also in abutment on the peripheral edge of the window 6 and in particular at least one of the two transverse walls 30 or both.
- the wedge 5 is designed to be inserted in the window 6 at an angle, that is to say, bent, so that its retaining peak 41 can be inserted first in the window 6.
- the protective part 4 comprises a retaining groove 29 which is formed in one of the longitudinal walls 31.
- the retaining groove 29 is thus disposed at the periphery of the window 6 and arranged in the direction of the longitudinal axis X4 from the internal surface 23.
- the retaining ridge 41 is in this case designed to be inserted into the retaining groove 29 during assembly of the shim 5.
- the shim is first positioned obliquely with respect to the axes X4 and X6, its retaining peak 41 forming a guide for pivoting the shim 5 about an axis parallel to the longitudinal axis X4.
- the wedge 5 can then be tilted until the plateau face 36 is in the continuity of the plateau surface 19 as shown in FIG. 3.
- the transverse edges 40 extending the plateau face 36 of the wedge 5 make it possible to cover most, if not totally, the upper surface of the window 6 so that the latter is closed completely or even tightly. According to this design, the retaining slot 3 and the window 6 are protected by the shim 5 from any material coming from outside the protective device 1.
- the shim 5 rests on the crenel base 14 via its lower face 37.
- the lower face 37 is placed at a distance from the crenellated base 14, the shim 5 resting on the protective part 4 through the transverse edges 40.
- the window 6 is preferably provided with a groove 51 formed at its periphery and opening on the plateau surface 19 to allow the insertion of a tool of the flat screwdriver type to allow the extraction, that is to say disassembly, the shim 5 of the window 6, as is particularly visible in Figure 2 and Figure 3.
- the shim 5 is provided on one of its side faces 35, which is opposite the groove 51, a mark 52 corresponding recessed, allowing the insertion of the tool to allow the disassembly of the shim 5.
- the shim 5 can be removed from the window 6 in a tilting movement around the ridge retaining 41 opposite to that which was used to mount the wedge 5.
- the protection piece 4 advantageously comprises an access orifice 28, which is visible in FIGS. 2 to 4 and in FIG. 9.
- This access orifice 28 is through and is directed parallel to the transverse axis X6, starting from one of the side edges 22, to open into the window 6.
- the access port 28 is thus formed transversely in the thickness of the connecting portion 26 to connect one of the side edges 22 to the window 6.
- the access opening 28 opens in this case at one of the longitudinal walls 31 which is located opposite the longitudinal wall 31 in which is formed the retaining groove 29.
- the interaction fingerprint 46 which makes it possible to pivot the key 9 around the pivot axis X5
- the access orifice 28 is aligned, substantially coaxially, with the pivot axis X5 of the wrench 9.
- the pivot axis X5 is substantially parallel to the transverse axis X6.
- the access orifice 28 preferably forms a bore of substantially circular or oblong section.
- the protective device 1 comprises a means for closing off the access orifice 28, which is not shown in the figures, of the cap or lid type, which can be attached to the access port 28. at the side edge 22 so as to cover it substantially tightly, in particular to prevent any admission of unwanted materials within the window 6 via the access port 28.
- the protective part 4 comprises a receiving notch 32, the receiving notch 32 being formed in the longitudinal wall 31 at which the access orifice 28 opens and extends to from an inlet neck 33, at the plateau surface 19, towards the inner surface 23.
- the section of the receiving notch 32 is reduced, in order to forming a locking abutment 7.
- the receiving notch 32 extends to a notch bottom 66 of rounded shape which substantially follows the contour of the access orifice 28, as can be seen in particular in FIG. Figure 4.
- the receiving notch 32 thus has a substantially circular shape between the inlet neck 33 and the bottom 66.
- the locking abutment 7 is in practice formed by a horn which projects parallel to the longitudinal axis X4 in FIG. direction of the interior of the receiving notch 32, at the level of the neck of e 33, that is to say in the direction of the leading edge 17.
- the upper part of the horn or abutment 7 extends parallel to the plateau surface 19, while the portion
- the bottom of the horn has a cylindrical shape which is in line with the bottom of the notch 66, so as to extend the access orifice 28 more than half of its circumference towards the inside of the window 6.
- the key 9 is represented in its first angular position, its lug 50 being in contact with the start stop 42.
- the shim 5 is itself shown in the same position as in FIG. that is to say, during assembly, obliquely.
- the stop finger 45 is in alignment with the retaining groove 29, so that it can pass between the horn forming the locking abutment 7 and the other side of the entrance neck 33.
- the passage niche 44 is oriented at the horn forming the locking abutment 7. The passage niche 44 is set back with respect to the entry neck 33, the key 9 can cross the latter .
- the receiving notch 32 thus makes it possible to receive the head 43 when the wedge 5 is mounted within the window 6 and when the key 9 is in its first position.
- angular position illustrated in Figure 6, the stop finger 45 being oriented to cross the inlet neck 33 during assembly or disassembly of the shim 5.
- the stop finger 45 abuts against the horn forming the locking abutment 7 and thus against the inlet neck 33. From this way the inlet neck 33 opposes the disassembly of the wedge 5 by holding the key 9 by means of the stop finger 45 within the receiving notch 32.
- the inlet neck 33 opposes in practice also to the mounting of the wedge 5 by preventing the key 9 from being admitted into the receiving notch 32 by blocking its stop finger 45 at the horn forming the locking abutment 7. It will be understood that the locking abutment 7 cooperates with the key to allow locking or unlocking of the wedge 5 within the window 6, depending on the orientation of the key 9 about the pivot axis X5.
- the protective part 4 comprises a radial stop 34 which forms another locking abutment 8.
- the radial stop 34 is preferably arranged in the longitudinal wall 31, that is to say at the periphery of the window 6 and forms a wall projecting from the longitudinal wall 31.
- the radial stop 34 protrudes from the longitudinal wall 31 at which the access port 28 opens.
- the radial stop extends radially with respect to the axis of the access orifice 28, or in a plane parallel to a radius extending from the axis of the access orifice 28.
- the radial stop 34 is thus parallel with the longitudinal axis X4 and forms a small wall which is turned towards the inner surface 23.
- the radial stop 34 forms a notch, and in particular a detent, and has two walls which are parallel to the longitudinal axis X4, or to a radius of the axis of the access port 28. Such a design is particularly visible in Figures 4, 7 and 8.
- the lug 50 extends radially with respect to the pivot axis X 5 and outside the shim 5, in this case projecting from the second end face 38
- the radial stop 34 is then placed in the protective part 4 so as to extend radially with respect to the key 9 when the shim 5 is mounted within the window 6.
- This arrangement is particularly visible in FIGS. 8.
- the lug 50 is spaced from the radial stop 34; it is in this case oriented in opposition to the radial stop. In this way the wedge 5 can be freely disassembled.
- the lug 50 does not oppose, in this first angular position, the mounting of the shim 5 within the window 6.
- the lug 50 comes dock the radial stop 34, so as to abut against this last and thus oppose the disassembly of the shim 5. It will be understood that, in the second angular position, the lug 50 also prevents the mounting of the shim 5 within the window 6.
- the radial stop 34 forms a detent notch of the lug 50, these two elements having complementary shapes.
- the term "snap" means that the lug 50 can be inserted into the notch under the action of a force sufficient to slightly and temporarily deform the lug 50 so that it comes back into force within the notch .
- the two locking abutments 7 and 8 described above namely represented separately in FIG. 6 on the one hand and in FIGS. 7 and 8 on the other hand, are implemented. Alternatively, they can nevertheless be implemented independently of one another. In other words, the protection device may include only one of these stops.
- the locking abutment 7 and / or 8 is disposed at the periphery of the window 6 and in particular at the longitudinal wall 31 at which the access port 28 opens.
- the wedge 5 When the key 9 is in its second angular position, the wedge 5 is retained mounted within the window 6 on the one hand by the locking abutment 7 and / or 8 and on the other hand by the retaining groove 29, which is disposed opposite the window 6 relative to the locking abutment 7 and / or 8 and which acts on the retaining ridge 41 of the shim 5.
- the mounting of the shim 5 is particularly reliable, accurate fast and easy.
- one of the edges of the receiving notch 32 forms a bearing surface 68 of the protective part 4.
- This bearing surface 68 extends in a plane substantially orthogonal to the longitudinal axis X4.
- the cylindrical periphery of the head 43 of the key 9 in turn forms a clamping cam, of substantially cylindrical shape.
- the head 42 defines a cam axis, materialized by the own axis X9, the cam axis then being parallel but not coaxial with the axis of the sleeve 49, that is to say with the pivot axis X5 .
- the pivoting of the key 9 from the first angular position to the second angular position causes an eccentric displacement of the clamping cam, that is to say the head 43 around the pivot axis X5.
- the eccentric displacement is parallel to the longitudinal axis X4.
- the bearing surface 68 of the protective part 4 which is in this case formed by the receiving notch 32, acts as a fulcrum of the clamping cam formed by the head 43. Therefore, when the key 9 is in its first angular position, the cam is spaced from the bearing surface 68.
- edges of the access opening of the bucket 56 can be protected using the protection system shown in the figures, in particular the upper blade 60 and the edges of the two lateral wings 62 and 64.
- the edges 60, 62 and 64 are protected by means of protection systems 100.
- These protection systems 100 may be replaced by a protection system according to the invention, which fits on these edges. 60, 62 and 64.
Landscapes
- 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)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Chain Conveyers (AREA)
- Helmets And Other Head Coverings (AREA)
- Packaging Of Machine Parts And Wound Products (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1554024A FR3035889B1 (fr) | 2015-05-05 | 2015-05-05 | Dispositif, systeme et procede de protection d'une arete de godet |
PCT/EP2016/060051 WO2016177807A1 (fr) | 2015-05-05 | 2016-05-04 | Dispositif, système et procédé de protection d'une arête de godet |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3292250A1 true EP3292250A1 (fr) | 2018-03-14 |
EP3292250B1 EP3292250B1 (fr) | 2021-01-13 |
Family
ID=53758388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16720838.8A Active EP3292250B1 (fr) | 2015-05-05 | 2016-05-04 | Dispositif, système et procédé de protection d'une arête de godet |
Country Status (16)
Country | Link |
---|---|
US (1) | US10487479B2 (fr) |
EP (1) | EP3292250B1 (fr) |
JP (1) | JP6769996B2 (fr) |
KR (1) | KR20180002808A (fr) |
CN (1) | CN107667199B (fr) |
AU (1) | AU2016259056B2 (fr) |
BR (1) | BR112017023875B1 (fr) |
CA (1) | CA2984989C (fr) |
CL (1) | CL2017002787A1 (fr) |
CO (1) | CO2017012401A2 (fr) |
ES (1) | ES2851344T3 (fr) |
FR (1) | FR3035889B1 (fr) |
HK (1) | HK1243471A1 (fr) |
MX (1) | MX2017014187A (fr) |
RU (1) | RU2715140C2 (fr) |
WO (1) | WO2016177807A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA201892623A1 (ru) * | 2016-05-05 | 2019-05-31 | ЭСКО ГРУП ЛЛСи | Изнашиваемая деталь для землеройного оборудования |
WO2018222195A1 (fr) * | 2017-06-01 | 2018-12-06 | Volvo Construction Equipment Ab | Fixation de godet de véhicule de construction |
JOP20200249A1 (ar) | 2018-03-30 | 2019-09-30 | Esco Group Llc | عضو تآكل، وحافة وعملية تركيب |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6145224A (en) * | 1998-11-06 | 2000-11-14 | Caterpillar Inc. | Ground engaging tools for earthworking implements and retainer therefor |
US20070051022A1 (en) * | 2002-12-04 | 2007-03-08 | Thomas Anthony Meyers | Excavator teeth |
US7080470B2 (en) * | 2003-04-30 | 2006-07-25 | Esco Corporation | Wear assembly for excavator digging edge |
US20050229442A1 (en) * | 2004-03-30 | 2005-10-20 | Esco Corporation | Wear edge assembly |
FR2878870B1 (fr) * | 2004-12-02 | 2008-12-05 | Predac Sarl | Ensemble d'accouplement entre des pieces d'usure sur des outils supports pour equipement d'engins de travaux publics |
CN2854513Y (zh) | 2005-09-03 | 2007-01-03 | 桂林市晶瑞传感技术有限公司 | 一种便携式数显水平倾角仪 |
UA93550C2 (ru) * | 2006-06-16 | 2011-02-25 | Ecko Корпорейшн | Замок для крепления снашиваемых деталей для землеройного оборудования и снашиваемый узел |
JP2009150124A (ja) * | 2007-12-20 | 2009-07-09 | Echigo Shoji Kk | 作業機械バケットの横ピン型取り付け具に用いる横ピン |
EA024047B1 (ru) * | 2009-09-29 | 2016-08-31 | Катерпиллар Инк. | Устройство фиксации зубьев ковша экскаватора |
JO3763B1 (ar) * | 2010-04-20 | 2021-01-31 | Esco Group Llc | تجميعة إقتران مع أداة تعليق مُدَعَّمة |
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 |
CN102493526B (zh) * | 2011-12-20 | 2013-11-06 | 鞍钢集团矿业公司 | 护翼式铲齿 |
EP2620557B1 (fr) * | 2012-01-24 | 2021-11-10 | Javier Bartolome Rodriguez | Ensemble d'usure pour machines |
US9540796B2 (en) * | 2012-09-04 | 2017-01-10 | Sandvik Intellectual Property Ab | Ground engaging tool mechanical attachment |
FR3011013B1 (fr) | 2013-09-20 | 2015-10-30 | Safe Metal | Systeme mecanique comprenant un dispositif de liaison entre une piece d'usure et son support, et godet d'engin de travaux publics |
-
2015
- 2015-05-05 FR FR1554024A patent/FR3035889B1/fr not_active Expired - Fee Related
-
2016
- 2016-05-04 CN CN201680032588.6A patent/CN107667199B/zh active Active
- 2016-05-04 WO PCT/EP2016/060051 patent/WO2016177807A1/fr active Application Filing
- 2016-05-04 JP JP2017557927A patent/JP6769996B2/ja active Active
- 2016-05-04 US US15/571,509 patent/US10487479B2/en active Active
- 2016-05-04 MX MX2017014187A patent/MX2017014187A/es unknown
- 2016-05-04 EP EP16720838.8A patent/EP3292250B1/fr active Active
- 2016-05-04 AU AU2016259056A patent/AU2016259056B2/en active Active
- 2016-05-04 RU RU2017142125A patent/RU2715140C2/ru active
- 2016-05-04 BR BR112017023875-6A patent/BR112017023875B1/pt active IP Right Grant
- 2016-05-04 ES ES16720838T patent/ES2851344T3/es active Active
- 2016-05-04 CA CA2984989A patent/CA2984989C/fr active Active
- 2016-05-04 KR KR1020177035002A patent/KR20180002808A/ko not_active Application Discontinuation
-
2017
- 2017-11-03 CL CL2017002787A patent/CL2017002787A1/es unknown
- 2017-11-30 CO CONC2017/0012401A patent/CO2017012401A2/es unknown
-
2018
- 2018-03-01 HK HK18102988.0A patent/HK1243471A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
CA2984989A1 (fr) | 2016-11-10 |
AU2016259056B2 (en) | 2020-10-22 |
EP3292250B1 (fr) | 2021-01-13 |
MX2017014187A (es) | 2018-04-13 |
JP2018514671A (ja) | 2018-06-07 |
CA2984989C (fr) | 2023-08-01 |
ES2851344T3 (es) | 2021-09-06 |
FR3035889B1 (fr) | 2017-06-16 |
US20180142448A1 (en) | 2018-05-24 |
CN107667199B (zh) | 2020-12-29 |
BR112017023875B1 (pt) | 2022-08-30 |
RU2017142125A (ru) | 2019-06-05 |
WO2016177807A1 (fr) | 2016-11-10 |
JP6769996B2 (ja) | 2020-10-14 |
KR20180002808A (ko) | 2018-01-08 |
RU2715140C2 (ru) | 2020-02-25 |
HK1243471A1 (zh) | 2018-07-13 |
BR112017023875A2 (pt) | 2018-07-31 |
CO2017012401A2 (es) | 2018-02-20 |
RU2017142125A3 (fr) | 2019-09-16 |
AU2016259056A1 (en) | 2017-11-30 |
CN107667199A (zh) | 2018-02-06 |
US10487479B2 (en) | 2019-11-26 |
FR3035889A1 (fr) | 2016-11-11 |
CL2017002787A1 (es) | 2018-06-01 |
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