ES2955008T3 - quick coupler - Google Patents
quick coupler Download PDFInfo
- Publication number
- ES2955008T3 ES2955008T3 ES20398007T ES20398007T ES2955008T3 ES 2955008 T3 ES2955008 T3 ES 2955008T3 ES 20398007 T ES20398007 T ES 20398007T ES 20398007 T ES20398007 T ES 20398007T ES 2955008 T3 ES2955008 T3 ES 2955008T3
- Authority
- ES
- Spain
- Prior art keywords
- accessory
- hydraulic
- connecting arm
- coupler
- latch
- 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
Links
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000003213 activating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes
-
- 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
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3631—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a transversal locking element
-
- 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
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Shovels (AREA)
Abstract
Esta invención se refiere a un acoplador (1) para accesorios de máquinas, como por ejemplo excavadoras, comprendiendo dichos accesorios pasadores de acoplamiento. El acoplador (1), para ello, dispone de al menos dos cilindros hidráulicos (8) (9). Estos cilindros se encargan de mover dos pestillos (5) (6) que están conectados mediante al menos un brazo conector (10). Dicho brazo de unión (10), a su vez, comprende dos barras articuladas, una de ellas de geometría rectangular y que, en un extremo, el frontal, está dotada de medios de articulación con la otra barra articulada de la brazo de conexión (10) y, en el otro extremo, el trasero, una placa de bloqueo (11). Al posicionar el acoplamiento rápido (1) sobre al menos dos pasadores (4) (5) de un accesorio (3) de una máquina, el pestillo trasero (7) sujeta el pasador trasero (5) del accesorio impidiendo así que se liberado. A continuación se acciona el pestillo frontal (6), bloqueando el pasador frontal (4) en el accesorio. (Traducción automática con Google Translate, sin valor legal)This invention relates to a coupler (1) for machine accessories, such as excavators, said accessories comprising coupling pins. To do this, the coupler (1) has at least two hydraulic cylinders (8) (9). These cylinders are responsible for moving two latches (5) (6) that are connected by at least one connecting arm (10). Said connecting arm (10), in turn, comprises two articulated bars, one of them of rectangular geometry and which, at one end, the front, is provided with means of articulation with the other articulated bar of the connecting arm ( 10) and, at the other end, the rear, a locking plate (11). When positioning the quick coupling (1) on at least two pins (4) (5) of an accessory (3) of a machine, the rear latch (7) holds the rear pin (5) of the accessory, thus preventing it from being released. The front latch (6) is then activated, locking the front pin (4) in the accessory. (Automatic translation with Google Translate, without legal value)
Description
DESCRIPCIÓNDESCRIPTION
Acoplador rápidoquick coupler
CAMPO TÉCNICO DE LA INVENCIÓNTECHNICAL FIELD OF THE INVENTION
La presente invención se refiere a un enganche rápido, en particular a enganches rápidos con sistema de seguridad, y más particularmente a enganches rápidos con sistema de seguridad destinados a excavadoras.The present invention relates to a quick coupler, in particular to quick couplers with a safety system, and more particularly to quick couplers with a safety system intended for excavators.
ESTADO DEL ARTE DE LA INVENCIÓNSTATE OF THE ART OF THE INVENTION
Es bien conocido que un acoplador tiene un gancho de enganche accionado hidráulicamente para acoplarse con los pasadores de un accesorio, por ejemplo, una cuchara, al brazo de una excavadora. Dichos acopladores suelen incluir un mecanismo de seguridad para evitar que el accesorio se desenganche del acoplador en caso de fallo hidráulico. La patente KR101777739 describe un sistema de accionamiento que bloquea los pasadores delantero y trasero mediante pestillos conectados entre sí, realizándose esta conexión mediante brazos accionados por resortes. Este sistema tiene el inconveniente de que la seguridad del sistema reside únicamente en la fuerza de dicho resorte mecánico.It is well known that a coupler has a hydraulically actuated hitch hook for engaging with the pins of an attachment, for example a bucket, to the arm of an excavator. Such couplers usually include a safety mechanism to prevent the accessory from disengaging from the coupler in the event of hydraulic failure. Patent KR101777739 describes a drive system that locks the front and rear pins by means of latches connected to each other, this connection being made by spring-loaded arms. This system has the drawback that the safety of the system lies solely in the strength of said mechanical spring.
La patente EP2161378 divulga un acoplador que es accionado por medio de los cilindros hidráulicos de los bloqueos delantero y trasero, pero no tiene bloqueo mecánico en caso de falla de un cilindro, por ejemplo, si un cilindro se rompe. La presente invención se diferencia de dicha divulgación en que logra el objetivo del bloqueo mecánico mediante el pestillo frontal (6) y la placa de bloqueo (11).Patent EP2161378 discloses a coupler that is actuated by means of the hydraulic cylinders of the front and rear locks, but does not have a mechanical lock in the event of a cylinder failure, for example, if a cylinder breaks. The present invention differs from said disclosure in that it achieves the objective of mechanical locking through the front latch (6) and the locking plate (11).
La patente Wo 2014/072709 A1 divulga un acoplador rápido relevante.Patent Wo 2014/072709 A1 discloses a relevant quick coupler.
PROBLEMAS TÉCNICOS A RESOLVERTECHNICAL PROBLEMS TO RESOLVE
Es un objetivo de esta invención proporcionar un mecanismo de seguridad alternativo mejorado, al dotar a los enganches rápidos de las máquinas excavadoras de un sistema de seguridad simple y eficaz, presentando así la ventaja de eliminar la intervención humana sobre el enganche y eliminar la posibilidad de que el enganche rápido suelte el accesorio después de que se active el sistema de seguridad, es decir, al activar la placa de bloqueo (11) el pestillo trasero (7) se impide que se retraiga. El pestillo trasero (7) sujeta el pasador trasero (5) del accesorio (3) e impide que se suelte. Acto seguido se acciona el pestillo delantero (6), bloqueando así el pasador delantero (4) en el accesorio (3). El picaporte trasero (7) dispone de un elemento de retención (13) que va soldado al mismo, impidiendo que la placa de bloqueo (11) proceda a su movimiento, enganchándola.It is an objective of this invention to provide an improved alternative safety mechanism, by providing the quick couplers of excavator machines with a simple and effective safety system, thus presenting the advantage of eliminating human intervention on the coupler and eliminating the possibility of The quick hitch releases the accessory after the safety system is activated, that is, activating the locking plate (11) prevents the rear latch (7) from retracting. The rear latch (7) holds the rear pin (5) of the accessory (3) and prevents it from coming loose. The front latch (6) is then activated, thus locking the front pin (4) in the accessory (3). The rear latch (7) has a retaining element (13) that is welded to it, preventing the locking plate (11) from moving, hooking it.
DESCRIPCIÓN DE LAS FIGURASDESCRIPTION OF THE FIGURES
Indicación de los números de referencia:Indication of reference numbers:
(I) acoplador; (2) excavadora; (3) accesorio; (4) pasador delantero; (5) pasador trasero; (6) pestillo delantero; (7) pestillo trasero; (8) cilindro de accionamiento hidráulico; (9) cilindro de seguridad hidráulico; (10) barra de conexión; (11) placa de bloqueo; (12) dispositivo de advertencia.(I) coupler; (2) excavator; (3) accessory; (4) front pin; (5) back pin; (6) front latch; (7) rear latch; (8) hydraulic drive cylinder; (9) hydraulic safety cylinder; (10) connecting bar; (11) lock plate; (12) warning device.
Figura 1 - Vista en sección transversal de la presente invención donde se pueden observar los siguientes componentes y su relación espacial: acoplador (1); pasador delantero (4); pasador trasero (5); pestillo delantero (6); pestillo trasero (7); cilindro de accionamiento hidráulico (8); cilindro hidráulico de seguridad (9) y barra de conexión (10).Figure 1 - Cross-sectional view of the present invention where the following components and their spatial relationship can be observed: coupler (1); front pin (4); rear pin (5); front latch (6); rear latch (7); hydraulic drive cylinder (8); hydraulic safety cylinder (9) and connecting bar (10).
Figura 2 - vista posterior de la presente invención.Figure 2 - rear view of the present invention.
Figura 3 - vista desde arriba de la presente invención.Figure 3 - top view of the present invention.
Figura 4 - vista en perspectiva de la presente invención, donde se pueden observar los siguientes componentes y su relación espacial: acoplador (1); pasador delantero (4); pasador trasero (5); pestillo delantero (6); pestillo trasero (7); cilindro de accionamiento hidráulico (8); cilindro hidráulico de seguridad (9); barra de conexión (10); placa de bloqueo ( I I ) y dispositivo de aviso (12).Figure 4 - perspective view of the present invention, where the following components and their spatial relationship can be observed: coupler (1); front pin (4); rear pin (5); front latch (6); rear latch (7); hydraulic drive cylinder (8); hydraulic safety cylinder (9); connecting bar (10); locking plate (I I) and warning device (12).
Figura 5 - Vista en sección transversal de la presente invención y en la posición donde los pasadores (4) (5) de un accesorio (3) no están bloqueados por los pestillos delantero (6) y trasero (7) respectivamente.Figure 5 - Cross-sectional view of the present invention and in the position where the pins (4) (5) of an accessory (3) are not blocked by the front (6) and rear (7) latches respectively.
Figura 6 - Vista en sección transversal de la presente invención y en la posición en que los pasadores (4) (5) de un accesorio (3) quedan bloqueados por los pestillos delantero (6) y trasero (7) respectivamente.Figure 6 - Cross-sectional view of the present invention and in the position in which the pins (4) (5) of an accessory (3) are blocked by the front (6) and rear (7) latches respectively.
Figura 7 - Representación de una máquina (2) con el enganche rápido (1) objeto de esta invención, y de un accesorio (3) con pasadores delantero (4) y trasero (5).Figure 7 - Representation of a machine (2) with the quick hitch (1) object of this invention, and of an accessory (3) with front (4) and rear (5) pins.
DESCRIPCIÓN DETALLADA DE LA INVENCIÓNDETAILED DESCRIPTION OF THE INVENTION
La presente invención se refiere a un acoplador (1) para accesorios (3) de máquinas (2) como, por ejemplo, excavadoras, comprendiendo dichos accesorios pasadores de acoplamiento. El acoplador (1), para este fin, dispone de al menos dos cilindros hidráulicos, un cilindro hidráulico de accionamiento (8) y un cilindro hidráulico de seguridad (9). Estos cilindros son los encargados de mover dos pestillos (5)(6), un pestillo de seguridad delantero (6) y un pestillo de seguridad trasero (7), los cuales están conectados por al menos un brazo conector (10). Se puede decir que los pestillos delanteros (6) y trasero (7) son el sistema de retención de esta invención.The present invention relates to a coupler (1) for accessories (3) of machines (2) such as, for example, excavators, said accessories comprising coupling pins. The coupler (1), for this purpose, has at least two hydraulic cylinders, a hydraulic drive cylinder (8) and a hydraulic safety cylinder (9). These cylinders are responsible for moving two latches (5)(6), a front safety latch (6) and a rear safety device (7), which are connected by at least one connecting arm (10). It can be said that the front (6) and rear (7) latches are the retention system of this invention.
Dicho brazo conector (10), a su vez, comprende dos barras articuladas, una de ellas de geometría ortogonal y que, en un extremo, el anterior, está provisto de medios de articulación con la otra barra articulada de 5 del brazo de conexión (10) y, en el otro extremo, el trasero, una placa de bloqueo (11).Said connecting arm (10), in turn, comprises two articulated bars, one of them of orthogonal geometry and which, at one end, the previous one, is provided with means of articulation with the other articulated bar of 5 of the connecting arm ( 10) and, at the other end, the rear, a locking plate (11).
Los cilindros hidráulicos (8) (9) son accionados por una válvula de retención hidráulica (no ilustrada aquí) que controla la entrada y la salida, abriendo la salida de aceite 10 cuando hay presión en la entrada, y que, en caso de rotura de un tubo de uno de los cilindros, hace que éste no retroceda, ya que la válvula de retención hidráulica mantiene el aceite dentro de los cilindros.The hydraulic cylinders (8) (9) are actuated by a hydraulic check valve (not illustrated here) that controls the inlet and outlet, opening the oil outlet 10 when there is pressure at the inlet, and that, in the event of breakage of a tube of one of the cylinders, prevents it from moving back, since the hydraulic check valve keeps the oil inside the cylinders.
Los cilindros hidráulicos (8) (9), cuando son accionados, 15 mueven el brazo conector (10), el cual cierra los pestillos (6) (7), trabando los dos pasadores (4) (5) del accesorio (3), respectivamente, produciéndose dicho bloqueo simultáneamente.The hydraulic cylinders (8) (9), when activated, move the connecting arm (10), which closes the latches (6) (7), locking the two pins (4) (5) of the accessory (3). , respectively, said block occurring simultaneously.
El cilindro de accionamiento hidráulico (8) inicia su desplazamiento lineal 20 y sobre un eje perpendicular al del cilindro de seguridad (9), y al hacerlo acciona los pestillos tanto delantero (6) como trasero (7). Simultáneamente a este movimiento, el cilindro hidráulico de seguridad (9) actúa promoviendo el movimiento del brazo conector (10) hasta que 25 la placa de bloqueo (11) se posiciona donde se bloquean mecánicamente los pestillos delanteros (5) y trasero (6). Este bloqueo mecánico se logra a través de un elemento de retención (13), soldado a la traba trasera (7), que impide que la placa de bloqueo (11) continúe el movimiento, es decir, 30 traba la placa de bloqueo (11).The hydraulic drive cylinder (8) begins its linear movement 20 and on an axis perpendicular to that of the safety cylinder (9), and in doing so activates both the front (6) and rear (7) latches. Simultaneously with this movement, the hydraulic safety cylinder (9) acts promoting the movement of the connecting arm (10) until the locking plate (11) is positioned where the front (5) and rear (6) latches are mechanically blocked. . This mechanical locking is achieved through a retaining element (13), welded to the rear lock (7), which prevents the locking plate (11) from continuing the movement, that is, it locks the locking plate (11). ).
En esta posición, aunque los cilindros (8) (9) no estén accionados, el sistema de seguridad no permite desactivar los pestillos (6)(7).In this position, although the cylinders (8) (9) are not activated, the security system does not allow the latches (6)(7) to be deactivated.
Así, al posicionar el acoplador rápido (1) en al menos dos pernos (4) (5) de un accesorio (3) de una máquina (2), el pestillo trasero (7) sujeta el perno trasero (5) del accesorio (3) impidiendo así su liberación. Acto seguido se acciona el pestillo delantero (6), bloqueando el pasador delantero (4) en el accesorio.Thus, when positioning the quick coupler (1) on at least two bolts (4) (5) of an accessory (3) of a machine (2), the rear latch (7) holds the rear bolt (5) of the accessory ( 3) thus preventing their release. The front latch (6) is then activated, locking the front pin (4) in the accessory.
Los pestillos (6) (5) también sirven como una alerta visual para el operador de la máquina, ya que es posible ver los pestillos enganchados en los pasadores (4) (5). No obstante, en una realización preferente de la invención, comprende un dispositivo avisador (12), que tiene como finalidad advertir al operario sobre el estado del enganche rápido (1). Este avisador (12) va adosado al eje que conecta con el cilindro hidráulico (9) y es solidario con éste, es decir, el movimiento de giro del eje hace que el avisador (12) se mueva. The latches (6) (5) also serve as a visual alert for the machine operator, as it is possible to see the latches engaged on the pins (4) (5). However, in a preferred embodiment of the invention, it comprises a warning device (12), which is intended to warn the operator about the status of the quick coupler (1). This warning device (12) is attached to the shaft that connects with the hydraulic cylinder (9) and is integral with it, that is, the rotation movement of the shaft causes the warning device (12) to move.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20398007.3A EP3943667B1 (en) | 2020-07-21 | 2020-07-21 | Quick coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2955008T3 true ES2955008T3 (en) | 2023-11-28 |
Family
ID=72322415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES20398007T Active ES2955008T3 (en) | 2020-07-21 | 2020-07-21 | quick coupler |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3943667B1 (en) |
| ES (1) | ES2955008T3 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0816335D0 (en) | 2008-09-08 | 2008-10-15 | Hill Ian | Coupler with gravity operated safety device |
| GB2473630B (en) * | 2009-09-17 | 2013-08-07 | Gary Miller | Fully automatic coupler for excavator arm |
| GB2509303A (en) * | 2012-11-08 | 2014-07-02 | Miller Int Ltd | Coupler |
| KR101777739B1 (en) | 2017-04-07 | 2017-09-12 | 주식회사 세안정기 | Quick coupler for excavator having automatic safety device |
-
2020
- 2020-07-21 ES ES20398007T patent/ES2955008T3/en active Active
- 2020-07-21 EP EP20398007.3A patent/EP3943667B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3943667B1 (en) | 2023-07-05 |
| EP3943667C0 (en) | 2023-07-05 |
| EP3943667A1 (en) | 2022-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2275827T3 (en) | QUICK HITCH COUPLER TO COUPLING AN ACCESSORY TO A SHOVEL ARM AND QUICK COUPLER THAT INCLUDES A CONTROL SYSTEM. | |
| US20110243654A1 (en) | Coupler | |
| CA2587065E (en) | A safety locking device for a quick coupler | |
| US11332908B2 (en) | Coupler with power connection system | |
| ES2965897T3 (en) | quick coupler | |
| US20090282712A1 (en) | Coupler for excavating machines and the like | |
| EP2161378A1 (en) | Coupler with gravity operated safety device | |
| ES2955008T3 (en) | quick coupler | |
| US20110091267A1 (en) | Coupler | |
| IE981051A1 (en) | Attachement device for excavating or digging apparatus | |
| EP2491185B1 (en) | A coupler for coupling an attachment to a work machine | |
| CA2651295A1 (en) | Coupler device to connect bucket or tool to boom arm | |
| GB2451304A (en) | Hitch safety device | |
| US10066359B2 (en) | Coupler device | |
| FI3653796T3 (en) | Quick changer and quick change system comprising such a quick changer | |
| WO2014165329A1 (en) | Locking system for quick coupler | |
| JP5266060B2 (en) | Safety device for hydraulic coupling | |
| BR102021013407A2 (en) | QUICK COUPLING | |
| EP3536862B1 (en) | Quick coupling | |
| NZ546893A (en) | A safety locking device for a quick hitch/coupler of an earth working machine | |
| EP2362024A2 (en) | Quick hitch for a digging or loading tool | |
| BRPI1101305B1 (en) | automatic pneumatic coupling device for truck and trailer | |
| GB2466640A (en) | Safety pin arrangement for a multi-hitch | |
| KR102544877B1 (en) | Auto Connection Device For Excavator Having Improved Safety | |
| WO2012013952A1 (en) | A coupler for coupling an attachment to a machine |