WO2020201587A1 - Dispositif de blocage pour fixer un élément d'usure dans un support d'une machine de travaux de terrassement - Google Patents

Dispositif de blocage pour fixer un élément d'usure dans un support d'une machine de travaux de terrassement Download PDF

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Publication number
WO2020201587A1
WO2020201587A1 PCT/ES2019/070224 ES2019070224W WO2020201587A1 WO 2020201587 A1 WO2020201587 A1 WO 2020201587A1 ES 2019070224 W ES2019070224 W ES 2019070224W WO 2020201587 A1 WO2020201587 A1 WO 2020201587A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
internal element
internal
movement
locking element
Prior art date
Application number
PCT/ES2019/070224
Other languages
English (en)
Spanish (es)
Inventor
José LÓPEZ ALMENDROS
Kamal BOBOUH ABAKOUY
Justo Jesús Ortiz García
Original Assignee
Metalogenia Research & Technologies S.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metalogenia Research & Technologies S.L. filed Critical Metalogenia Research & Technologies S.L.
Priority to PCT/ES2019/070224 priority Critical patent/WO2020201587A1/fr
Priority to CN202080025576.7A priority patent/CN113646490B/zh
Priority to ES20715071T priority patent/ES2944715T3/es
Priority to AU2020255269A priority patent/AU2020255269A1/en
Priority to CA3135312A priority patent/CA3135312C/fr
Priority to EP20715071.5A priority patent/EP3947832B1/fr
Priority to BR112021019851A priority patent/BR112021019851A2/pt
Priority to PE2021001515A priority patent/PE20212020A1/es
Priority to MX2021012083A priority patent/MX2021012083A/es
Priority to PCT/EP2020/059389 priority patent/WO2020201418A1/fr
Publication of WO2020201587A1 publication Critical patent/WO2020201587A1/fr
Priority to ZA2021/06676A priority patent/ZA202106676B/en
Priority to CL2021002451A priority patent/CL2021002451A1/es

Links

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

Definitions

  • the invention relates to a locking device for holding a wear element on a support in an earthmoving machine, the support comprising a housing and the wear element comprising a hole so that, in a mounted position, the housing and the hole are at least partially aligned (ie partially overlapping), where the locking device is suitable to be inserted into the housing.
  • Earth-moving machines are used in excavation, demolition, construction, mining, dredging and similar activities. In general, they have a shovel or bucket in which the material is collected.
  • the shovel or bucket is subject to high stresses and great erosion, especially in the area of the lip (also called blade). For this reason, usually the shovel or bucket has a plurality of wear elements that protect it from wear and impacts and / or that improve penetration into the ground, such as teeth, supports or tooth holders (also called adapters) and / or protectors (front and side).
  • the wear elements can be attached to other wear elements (such as a tooth attached to an adapter) and / or can be attached to the lip or blade of the bucket or shovel (such as an adapter attached to a lip).
  • the wear or protection elements can be fixed mechanically (easier and faster to change) or welded (cheaper but difficult to change and with the risk of damaging the blade with welding), depending on the degree of abrasiveness the terrain and the dimensions of the machine. It should also be noted that large earthmoving machines, especially those that operate in quarries and mines, are essential for production at these sites. For this reason, the downtimes of these machines can affect their productivity in a very relevant way and it is very interesting that the change of wear elements can be carried out quickly, safely, and on the spot. , without having to take the machine or the bucket to the workshop to use special equipment. For this reason, it is often advantageous if the wear elements are fixed mechanically and that a locking device, for example a pin, is used for this.
  • the wear element has a cavity in which a nose arranged in the support (for example, the adapter) is housed, on which the wear element will be mounted.
  • a through hole passes through the nose, defining a housing, and at least one of the walls of the cavity has a hole in such a way that, in a mounted position, the hole or holes in the walls of the cavity are superimposed (i.e. , aligned or overlapped) with the housing and the locking device (which is substantially an elongated pin) can be inserted through the hole in the wall of the cavity until it is received in the housing.
  • the locking device In the mounted position, the locking device partially protrudes from the housing and occupies (at least partially) the hole in the wall of the cavity. This locks the wear element in the mounted position.
  • This overlap does not have to be total, being sufficient that there is a partial overlap as long as it is sufficient for the insertion of the pin.
  • This is also valid in the present invention. In certain cases it is the wear element that has a nose and the support that has a cavity in which, in the mounted position, the nose is housed, but otherwise the rest of the concept works in the same way.
  • the blocking devices of the state of the art have drawbacks.
  • it is important that the locking device (or the tip of the locking device that is in contact with the wear element) is not subjected to a force that pushes it against the wear element, that is, that the dis - positive locking works independently of the wear element.
  • the object of the invention is to overcome these drawbacks.
  • This purpose is achieved by means of a locking device of the type indicated at the beginning, characterized in that the locking device comprises: - a locking element with a locking end and an inner end opposite the locking end,
  • a displacement means capable of displacing the locking element with respect to the internal element, in a reversible way, between a retracted (or retracted) position and an extended (or deployed) position, where the displacement between the retracted position and the extended defines a direction of travel
  • Another advantage of the present invention is in the fact that the locking device is inside the housing of the support, since the user does not have to remove the locking device when changing the wear element, but can remove the element wear and fit a new one without tampering with the locking device. This is particularly interesting since it is often not necessary to change the locking device (which can remain operative) when the wear element is changed, which allows the consequent cost savings.
  • the locking device comprises a capsule that houses the internal element and at least the internal end of the locking element. It is particularly advantageous that, in the retracted position, the locking element is also fully housed inside the capsule. Furthermore, it is advantageous for the capsule to have a cross section which, in at least one area, is larger than the hole in the wear element. In this way, in the mounted position prevents the capsule from slipping out of the holder housing and not being able to pass through the hole.
  • the elastic elements are a spring, although other elastic elements are possible.
  • the displacement means comprise rotating means.
  • the turning means transform a turn into a longitudinal movement.
  • the locking element is a cylindrical body with a base facing the internal element and the internal element is also a cylindrical body with a base facing the locking element.
  • the base of the internal element facing the locking element comprises a first inclined surface
  • the base of the locking element facing the internal element comprises a second inclined surface , where, in the retracted position, both inclined surfaces are superimposed on each other and during a movement between the retracted position and the extended position, the second inclined surface slides on the first inclined surface causing the locking element to move relative to the internal element.
  • a rotary movement can be transformed into a linear movement according to the direction of movement.
  • the force exerted by the elastic means tends to bring the first inclined surface and the second inclined surface together.
  • a preferred embodiment is when the base of the internal element facing the blocking element comprises a first seating surface arranged at the end of the first inclined surface which, in the extended position, is closer to the element locking element, and the base of the locking element facing the internal element comprises a second seating surface arranged at the end of the second inclined surface which, in the extended position, is closest to the internal element, where, in the exposed position When laid, both seating surfaces are superimposed on each other. In this way it is achieved that the extended position is a stable position and the locking device does not tend to retract towards the retracted position due to the force exerted by the elastic means. It is particularly advantageous if one of the seating surfaces comprises a first elevation at the end of the seating surface opposite the junction area between the seating surface and its corresponding inclined surface.
  • This first lift thus defines an “end of run” and prevents the turn from continuing beyond what is planned.
  • Another particularly advantageous solution is found when one of the seating surfaces has a second elevation at the end of the seating surface close to the junction area between the seating surface and its corresponding inclined surface. This second elevation prevents, for example due to vibrations and shocks to which the wear element is subjected, the locking element and the internal element from rotating relative to each other until the seating surfaces are no longer in contact. contact with each other, with the subsequent risk of the locking device retracting due to the force generated by the elastic means.
  • the second elevation must be dimensioned in such a way as to avoid this involuntary twist but to allow the voluntary twist made to want to retract the locking device.
  • another preferred form of embodiment is when the base of the internal element facing the locking element comprises a first guiding surface opposite the first inclined surface and the base of the locking element facing the internal element comprises a second guide surface opposite the second inclined surface, where, in the retracted position the first guide surface and the second guide surface are superimposed on each other and during a movement between the retracted position and the extended position the second guide surface is slide to the lake of the first guidance surface.
  • each guiding surface is opposite to its corresponding inclined surface what is meant is that both surfaces have an orientation in space that is in the same direction, but in opposite directions.
  • the embodiment includes a second elevation as indicated above
  • another additional improvement is obtained when the second elevation has a point of maximum elevation that has a maximum height, in the direction of travel, relative to the seating surface, and the guiding surface corresponding to the incline surface corresponding to the seating surface extends, in the direction of travel, beyond the point of maximum elevation.
  • the guiding surface exerts its guiding function from the first instant of the folding movement, which is when the second elevation is exceeded.
  • the transition from the retracted position to the extended position is achieved by rotating the locking element relative to the internal element by 360 ° or less, preferably by 180 ° or less, and most preferably by 90 °.
  • the turning means comprise a hole arranged in the base of the locking element opposite the internal element, where the hole is coaxial with the direction of movement and does not have a cylindrical symmetry according to the direction of movement.
  • the locking device comprises anti-rotation means, capable of preventing its rotation with respect to the support.
  • anti-rotation means are advantageously arranged in the capsule.
  • the blocking device comprises air evacuation means that communicate the space between the blocking element and the internal element with the outside. Indeed, in certain cases the air remaining in this space is compressed when folding the locking device and generates an overpressure that makes it difficult (and even prevents) from folding.
  • the air evacuation means allow the air trapped in this space to be evacuated, preventing an overpressure from being generated in this space.
  • the locking device comprises an O-ring at an intermediate point of the lateral surface of the locking element.
  • the purpose of this O-ring seal is to prevent dust and / or fines from getting inside the wear device during the operation of the earthmoving machine (in the present description, fines are understood as small particles).
  • this O-ring can increase the risk of the above-mentioned overpressure being generated.
  • the air evacuation means comprise an air evacuation duct that extends between the space between the locking element and the internal element and an upper end, where the upper end of the air duct Air evacuation is below, according to the direction of travel, the O-ring when the locking element and the internal element are in the extended position, and is above, according to the direction of travel, the O-ring when the element lock and inner element are in the stowed position.
  • the air evacuation duct is a cavity arranged between the outer lateral surface of the blocking element and the lateral surface of said cap.
  • a preferred form of embodiment of a locking device is when the device comprises a stem with a first end fixed to the internal element and a second end housed inside a cavity arranged in the locking element, where the second end is able to move according to the direction of movement along the cavity, where the cavity has an opening facing the internal element and is traversed by the stem, and where the elastic means are arranged between the second end stem and opening.
  • the first end of the stem is fixed (and preferably screwed) to the internal element.
  • the locking element has a mounting hole coaxial with the direction of travel and with a diameter greater than the maximum diameter of the stem so that the stem is able to be housed in the cavity through the mounting hole.
  • the stem preferably has a head at its end that acts as a stop for the elastic means, where this head is the one that defines the maximum diameter of the stem. It is also advantageous if the device comprises a plug that closes the mounting hole, to prevent the entry of dust and stones through the mounting hole.
  • a locking device equivalent to the previous one but "inverted" is when the locking device comprises a stem with a first end fixed to the locking element and a second end housed in the interior of a cavity arranged in the internal element, where the second end is capable of moving according to the direction of movement along the cavity, where the cavity has an opening facing the locking element and is traversed by the stem , and where the elastic means are arranged between the second end of the stem and the opening.
  • the first end of the rod is screwed to the locking element, that the internal element has a mounting hole coaxial with the direction of travel and with a diameter greater than the maximum diameter of the stem so that the stem is able to be housed in the cavity through the mounting hole, and that the device comprises a plug that closes the mounting hole .
  • the elastic means can be considered to have a length D in a load-free state, measured in the direction of displacement, and are capable of being compressed to a maximum length T, measured in the direction of displacement. , and that the locking element and the internal element are separated by a distance E when moving from the retracted position to the extended position, measured in the direction of said direction of travel.
  • the difference between D and T is greater than or equal to E. In this way it is ensured that the elastic means are not compressed beyond their admissible value.
  • one of the advantages of the present invention is that the elastic means exert a force that helps to retract the locking device.
  • the locking device comprises:
  • - second displacement means equal to the aforementioned displacement means and capable of displacing the second locking element with respect to the internal element, in a reversible way, between a retracted position and an extended position, where the displacement between the retracted position and the extended position takes place in the same direction of travel indicated above,
  • this latter embodiment consists of a locking device that extends from both ends. It is common for the housing in the nose of the bracket to be a through hole and for the wear element to have two holes, each on opposite walls of the cavity. In these cases, it is important for the locking device to be fitted in both holes, so that the wear element is blocked at two points. This last embodiment makes it possible to achieve this objective.
  • FIG. 1 a perspective view of a wear element partially mounted on a support and an exploded view of a first embodiment of a locking device according to the invention.
  • Figs. 2 to 5 a perspective view and top, front and side views, respectively, of the locking device of Fig. 1 in an extended (or unfolded) position.
  • FIG. 6 and 7 front and side views, respectively, of the locking device of Figures 2 to 5, without the capsule.
  • Fig. 8 a view equivalent to Fig. 6, but with the locking device in the retracted position.
  • Fig. 9 a longitudinal section view, according to the direction of movement, of the locking device of Fig. 8.
  • Fig. 10 a longitudinal section view, according to the direction of movement, of the locking device of Fig. 6.
  • Fig. 11 a perspective view of a support into which two locking elements are inserted according to the invention.
  • FIG. 12 an exploded view of a second embodiment of a locking device according to the invention.
  • Fig. 13 a top view of the locking device of Fig. 12.
  • Fig. 14 a longitudinal section view, according to the direction of movement, of the locking device of Fig. 12 in the folded position.
  • Fig. 15 a longitudinal section view, according to the direction of movement, of the locking device of Fig. 12 in the extended position.
  • FIGs. 16-18 details relating to an air evacuation system according to the invention.
  • FIG. 19 a perspective view of another embodiment of a locking device, without the capsule Fig. 20, a perspective view of the internal element of the locking device of Fig. 19.
  • a first embodiment of a retention device according to the invention is shown.
  • the device comprises a locking element 1, an internal element 2, a stem 3, a spring 4 and a closing element 5.
  • the locking element 1 has an O-ring 6 that extends along its perimeter side. These components are housed inside a capsule 7. When the locking device is in the extended position, a locking end 8 of the locking element 1 protrudes from the capsule 7 (see Figs. 2, 4 and 5).
  • the device is housed in a housing 9 provided in the nose of a support 10 (in Fig. 1, a welding nose (known as "Weld on nose")).
  • a wear element 11 in Fig. 1, a tooth
  • the wear element 11 has a cavity suitable to house the nose of the support 10 inside and has a hole 12 in one of the side walls of the cavity.
  • the hole 12 is at least partially overlapped with the housing 9 such that the locking end 8 can protrude from the housing. 9 and lodge in the hole 12, which causes the blocking of the wear element 11 in the support 10.
  • the locking element 1 and the internal element 2 are substantially cylindrical bodies capable of being housed inside the capsule 7, which is also cylindrical.
  • the two cylindrical bodies are arranged in such a way that their axes coincide (and coincide with the direction of movement). Therefore, the cylindrical body that makes up the locking element 1 has a base facing a base of the cylindrical body that makes up the internal element 2.
  • the internal element 2 is welded to the capsule 7 at the bottom of both (see figs. 14 and 15), so that it is fixed with respect to the capsule 7, while the locking element 1 can rotate with respect to the capsule 7.
  • the capsule 7 has a lateral projection 14 that prevents the capsule 7 from rotating with respect to the housing 9. This lateral projection 14 thus defines anti-rotation means.
  • the displacement means comprise rotating means.
  • the turning means include a first inclined surface 15 arranged at the base of the internal element 2 facing the locking element 1 and a second inclined surface 16 at the base of the locking element 1 facing the internal element 2.
  • the first and the second Inclined surface 15 and 16 have a helical configuration, so that they can slide relative to each other as locking element 1 rotates relative to internal element 2. Due to this helical configuration, the rotation also causes a displacement in sense of the axis of the helical surface, which is thus the direction of displacement.
  • the inner element 2 has two first inclined surfaces 15 and the locking element 1 also has two second inclined surfaces 16, so that each first inclined surface 15 is paired with a second inclined surface 16.
  • each inclined surface 15 and 16 At the end of each inclined surface 15 and 16 is a settlement surface 17 (the first settlement surface and the second settlement surface, respectively). valy).
  • a settlement surface 17 At the end of each inclined surface 15 and 16 is a settlement surface 17 (the first settlement surface and the second settlement surface, respectively). valy).
  • the seating surface 17 of the internal element 2 comprises a first elevation 18 at the end opposite the junction area between the seating surface 17 and the first inclined surface 15. This first elevation 18 prevents it from being inadvertently rotated locking member 1 beyond this point, causing it to retract abruptly.
  • the seating surface 17 of the internal element 2 also comprises a second elevation 19 at the end close to the connection zone between the seating surface 17 and the first inclined surface 15. In this case, this second elevation 19 has as its object to avoid that, due to the vibrations and shocks to which the locking device is subjected during use, the locking element 1 can move from the stable position defined by the seating surfaces 17 and retract due to the force of the elastic media.
  • the change from the folded to the detached position is achieved by turning 90 ° (a quarter turn).
  • the base of the locking element 1 which is at the locking end 8, that is, the base opposite the internal element 2, has a hole 20 suitable for inserting a turning tool.
  • This hole 20 is shaped in a substantially square cross section.
  • the elastic means comprise a helical spring 4.
  • the spring 4 is mounted around a stem 3.
  • the stem 3 has a first end 21 fixed to the internal element 2 by means of a screw 13.
  • the second end 23 of the stem 3 is housed inside a cavity 24 arranged in the element of lock 1 and is capable of moving in the direction of travel along the cavity 24 when the locking device is extended or retracted.
  • the second end 23 has a head 25 that retains the spring 4.
  • the cavity 24 has an opening 26 oriented towards the internal element 2 and is traversed by the stem 3.
  • the opening 26 is smaller than the spring 4, so that the spring 4 is retained between the head 25 and the opening 26.
  • the The opening 26 is in a closing element 5 that is screwed to the locking element 1.
  • the closing element 5 is larger in diameter than the head 25, so that the head 25 and the spring 4 can be inserted into the cavity 24 and subsequently screwing the closure element 5 into the locking element 1.
  • a second embodiment of a locking device according to the invention is shown.
  • the locking element 1 has a mounting hole 27 coaxial with the direction of travel and with a diameter greater than the maximum diameter of the stem 3 (that is, the maximum diameter defined by the head 25).
  • the stem 3 can be housed in the cavity 24 by inserting it through the mounting hole 27.
  • the end of the stem 3 opposite the head 25 is threaded and passes through the opening 26 (which, in this case, is smaller than the spring 4, since spring 4 is also inserted into cavity 24 through mounting hole 27).
  • This threaded end can be screwed to the internal element 2, in such a way that the assembly remains assembled.
  • a plug 28 closes the mounting hole 27.
  • the locking element is larger than the internal element and cavity in which the head of the stem is housed and the spring is in the locking element.
  • the second embodiment of Figs. 12 to 18 also includes air evacuation means that communicate the space between the blocking element 1 and the internal element 2 with the outside.
  • air evacuation means could have been included exactly the same in the first embodiment or in the "symmetric" embodiments indicated above.
  • the O-ring 6 makes it difficult for air to pass from this interior space to the exterior.
  • the blocking device includes an air evacuation duct 29 that extends between this interior space and an upper end 30 of the air evacuation duct 29. The position of this upper end 30 is important.
  • the purpose of the O-ring 6 is to prevent dust and / or fines from entering the interior of the locking device. Therefore, when the locking device is extended it is important that the O-ring 6 can exert its function, so the upper end 30 of the air evacuation duct 29 must be "below" the O-ring 6 (see Fig. 15 and enlarged detail of Fig. 17).
  • the upper end 30 of the air evacuation duct 29 When the locking device is retracted, the upper end 30 of the air evacuation duct 29 must be "above” the O-ring 6, so that a communication is established between the interior and exterior space that allows the air to escape. (see Fig. 14 and enlarged detail of Fig. 16).
  • the most advantageous thing is that the upper end 30 of the air evacuation duct 29 is close (below) to the O-ring 6 when the locking device is extended, in such a way that, when the folding begins, the upper end 30 remains quickly above the O-ring 6 and the overpressure generated in the interior space is as low as possible.
  • the air evacuation duct 29 has been formed from a cavity or clearance between the outer lateral surface of the locking element 1 and the inner lateral surface of the capsule 7.
  • the inner lateral surface of the capsule 7 is not totally cylindrical but rather has a section (corresponding to the air evacuation duct 29) that is oval or ellipsoidal (see Fig. 18, which schematically shows a cross section of the locking element 1 and the capsule 7).
  • Fig. 18 which schematically shows a cross section of the locking element 1 and the capsule 7.
  • Figs. 19 and 20 another embodiment of a locking device according to the invention is shown.
  • the same references have been used for those elements that are common with the previous embodiments.
  • the main difference lies in the fact that the base of the internal element 2 facing the locking element 1 comprises a first guiding surface 31 opposite the first inclined surface 15 and the base of the locking element 1 facing the internal element 2 comprises a second guiding surface 32 opposite to the second inclined surface 16.
  • the locking element 1 has a helical finger 33 that is capable of being housed in a helical housing 34 arranged in the internal element 2.
  • the Helical finger 33 defines the second inclined surface 16 and the second guide surface 32, which are on opposite sides of the helical finger 33.
  • the helical housing 34 defines the first inclined surface 15 and the first guide surface 31, which are two facing faces of the helical housing 34.
  • the second elevation 19 has a point of maximum elevation 35 (in the solution shown in the figures it is an entire edge) that has a maximum height, in direction of travel direction, with respect to the seating surface 17.
  • This maximum height is determined in such a way as to ensure that the locking element 1 cannot "jump" from the seating surface 17 to the first inclined surface 15 but which is low enough so that it can be overcome when bringing the locking element 1 to its extended position.
  • the first guide surface 31 (which is the one that corresponds to the first inclined surface 15 which is, in turn, the one that corresponds to the first seating surface 17) extends, in the direction of movement, beyond the point of maximum lift 35.

Abstract

L'invention concerne un dispositif de blocage pour fixer un élément d'usure (11) dans un support (10) d'une machine de terrassement qui présente un logement (9) dans le support (10) et un orifice dans l'élément d'usure de manière qu'en position montée, le logement (9) et l'orifice (12) sont au moins partiellement alignés. Le dispositif de blocage est introduit dans le logement (9) et comprend - un élément de blocage (1), - un élément interne (2), des moyens de déplacement aptes à déplacer l'élément de blocage (1) par rapport à l'élément interne (2), de manière réversible et selon une direction de déplacement, entre une position repliée et une position déployée, et - des moyens élastiques qui, en position déployée, exercent une force selon la direction de déplacement et tendent à rapprocher l'élément de blocage (1) de l'élément interne (2).
PCT/ES2019/070224 2019-04-03 2019-04-03 Dispositif de blocage pour fixer un élément d'usure dans un support d'une machine de travaux de terrassement WO2020201587A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
PCT/ES2019/070224 WO2020201587A1 (fr) 2019-04-03 2019-04-03 Dispositif de blocage pour fixer un élément d'usure dans un support d'une machine de travaux de terrassement
EP20715071.5A EP3947832B1 (fr) 2019-04-03 2020-04-02 Dispositif de verrouillage pour accoupler un élément d'usure à un support dans un engin de terrassement
ES20715071T ES2944715T3 (es) 2019-04-03 2020-04-02 Dispositivo de bloqueo para sujetar un elemento de desgaste en un soporte en una máquina de movimiento de tierras
AU2020255269A AU2020255269A1 (en) 2019-04-03 2020-04-02 Locking device for coupling a wear element to a support in an earth moving machine
CA3135312A CA3135312C (fr) 2019-04-03 2020-04-02 Dispositif de verrouillage pour accoupler un element d'usure a un support dans un engin de terrassement
CN202080025576.7A CN113646490B (zh) 2019-04-03 2020-04-02 铲土运输机中用于将磨损元件耦接到支撑件的锁定装置
BR112021019851A BR112021019851A2 (pt) 2019-04-03 2020-04-02 Dispositivo de travamento para acoplar um elemento de desgaste a um suporte em uma máquina de movimentação de terra
PE2021001515A PE20212020A1 (es) 2019-04-03 2020-04-02 Dispositivo de bloqueo para sujetar un elemento de desgaste en un soporte en una maquina de movimiento de tierras
MX2021012083A MX2021012083A (es) 2019-04-03 2020-04-02 Dispositivo de bloqueo para sujetar un elemento de desgaste en un soporte en una maquina de movimiento de tierras.
PCT/EP2020/059389 WO2020201418A1 (fr) 2019-04-03 2020-04-02 Dispositif de verrouillage pour accoupler un élément d'usure à un support dans un engin de terrassement
ZA2021/06676A ZA202106676B (en) 2019-04-03 2021-09-09 Locking device for coupling a wear element to a support in an earth moving machine
CL2021002451A CL2021002451A1 (es) 2019-04-03 2021-09-21 Dispositivo de bloqueo para sujetar un elemento de desgaste en un soporte en una máquina de movimiento de tierras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2019/070224 WO2020201587A1 (fr) 2019-04-03 2019-04-03 Dispositif de blocage pour fixer un élément d'usure dans un support d'une machine de travaux de terrassement

Publications (1)

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WO2020201587A1 true WO2020201587A1 (fr) 2020-10-08

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ID=66821276

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/ES2019/070224 WO2020201587A1 (fr) 2019-04-03 2019-04-03 Dispositif de blocage pour fixer un élément d'usure dans un support d'une machine de travaux de terrassement
PCT/EP2020/059389 WO2020201418A1 (fr) 2019-04-03 2020-04-02 Dispositif de verrouillage pour accoupler un élément d'usure à un support dans un engin de terrassement

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/059389 WO2020201418A1 (fr) 2019-04-03 2020-04-02 Dispositif de verrouillage pour accoupler un élément d'usure à un support dans un engin de terrassement

Country Status (11)

Country Link
EP (1) EP3947832B1 (fr)
CN (1) CN113646490B (fr)
AU (1) AU2020255269A1 (fr)
BR (1) BR112021019851A2 (fr)
CA (1) CA3135312C (fr)
CL (1) CL2021002451A1 (fr)
ES (1) ES2944715T3 (fr)
MX (1) MX2021012083A (fr)
PE (1) PE20212020A1 (fr)
WO (2) WO2020201587A1 (fr)
ZA (1) ZA202106676B (fr)

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WO1997021880A1 (fr) * 1995-12-11 1997-06-19 Esco Corporation Dent d'excavation
EP1741842A1 (fr) 2004-03-30 2007-01-10 Metalogenia, S.A. Dispositif de fixation amovible de deux pieces mecaniques
AU2017202334A1 (en) * 2007-05-10 2017-04-27 Esco Group Llc Wear assembly for excavating equipment
EP2952639A1 (fr) * 2014-06-02 2015-12-09 Metalogenia Research & Technologies S.L. Dispositif de verrouillage destiné à fixer un élément d'usure

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WO2020201418A1 (fr) 2020-10-08
BR112021019851A2 (pt) 2022-01-18
CA3135312C (fr) 2023-10-10
ES2944715T3 (es) 2023-06-23
MX2021012083A (es) 2021-11-03
AU2020255269A1 (en) 2021-11-11
CN113646490B (zh) 2023-07-21
ZA202106676B (en) 2023-06-28
CA3135312A1 (fr) 2020-10-08
EP3947832A1 (fr) 2022-02-09
EP3947832B1 (fr) 2023-04-26
CN113646490A (zh) 2021-11-12
PE20212020A1 (es) 2021-10-18

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