WO2016135367A1 - Self-centering part extractor - Google Patents

Self-centering part extractor Download PDF

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Publication number
WO2016135367A1
WO2016135367A1 PCT/ES2016/070182 ES2016070182W WO2016135367A1 WO 2016135367 A1 WO2016135367 A1 WO 2016135367A1 ES 2016070182 W ES2016070182 W ES 2016070182W WO 2016135367 A1 WO2016135367 A1 WO 2016135367A1
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WO
WIPO (PCT)
Prior art keywords
spindle
legs
extractor
annular support
articulated
Prior art date
Application number
PCT/ES2016/070182
Other languages
Spanish (es)
French (fr)
Inventor
Julio SAMPEDRO MARTÍNEZ
Original Assignee
Forza Herramientas, 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 Forza Herramientas, S.L. filed Critical Forza Herramientas, S.L.
Priority to EP16754801.5A priority Critical patent/EP3266566B1/en
Publication of WO2016135367A1 publication Critical patent/WO2016135367A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws

Definitions

  • the present invention relates to a self-centering part extractor, and more specifically to a mechanical extractor designed to facilitate the extraction of parts, such as bearings, bushings, etc., which become part of an infinity of Industrial machines and equipment.
  • the extractor of the invention is of the type comprising an offset spindle in which a body is screwed, to which a series of legs that hang around the spindle are articulated.
  • This patent describes a mechanical extractor comprising a body in which an offset spindle is screwed and is a carrier of a series of legs that hang around the spindle.
  • the central body has radial arms to which, through a support, the legs are connected.
  • each leg is associated with a radial connecting rod that links the movement of each leg with respect to eccentric points belonging to a collar that is mounted with the power to rotate and axial movement with respect to the offset spindle .
  • This extractor it is possible to align the spindle axis with the axis of the piece to be extracted.
  • Each piece is connected with the ability to move to a radial arm by means of articulated flanges and each leg can move independently.
  • a collar mounted on the drive spindle provides a coaxial guiding means to each leg. This extractor does not allow however a use Simple and effective in the extraction process.
  • the object of the present invention is an extractor of parts of the type initially exposed which, having the quality of being self-centering, achieves the movement in unison of all the legs by means of a mechanism that is regulated from the top of the extractor , thus allowing a simpler and more efficient use in the extraction of parts.
  • the extractor of the invention comprises a first spindle, through which the centering is carried in the piece to be extracted, in which a body is screwed to which the legs are articulated, in number of two or more, which hang around the body, located around the spindle.
  • a second spindle On this first spindle, in the upper part thereof and in coaxial position, a second spindle is arranged, which is fixed, which is fixed by its lower end to the aforementioned body.
  • the first and second spindles are independent and the second spindle is threaded externally.
  • an upper crank that is screwed into this second spindle; a lower ring, which is freely rotatable and movable on the second spindle; and an intermediate annular support, also independent of the second spindle, on which it can rotate and move freely, and which is fixed to the upper handle with the power of free rotation but without the possibility of axial displacement with respect to it.
  • a series of radial connecting rods are articulated at one end, in number and position coinciding with those of the legs, which hang towards said legs, to which they are articulated by their free end.
  • the articulation axes of the connecting rods to the intermediate annular body and to the legs are parallel and perpendicular to the axis of the spindles.
  • Each connecting rod has an intermediate longitudinal groove that is crossed by a pin integral to the lower ring.
  • Figure 1 shows an elevation view of an extractor constituted according to the invention.
  • Figure 2 shows in section the same extractor, according to the cutting line ll-ll of Figure 1.
  • Figure 3 shows an execution variant, corresponding to a three-legged puller.
  • Figure 4 represents the extractor of Figure 1, in the position of maximum opening of the legs.
  • Figure 5 represents the extractor of figure 1 in an intermediate position for opening the legs.
  • Figure 6 represents the extractor of Figure 1 with the legs fully closed. Detailed description of one embodiment
  • a two-legged puller is shown, constituted according to the invention, which comprises a first spindle (1), around which a second independent tubular spindle (2) is arranged in coaxial position which It is threaded externally.
  • the second spindle (2) is shorter than the first spindle (1) and is arranged around the top of the first spindle (1).
  • a body (3) is threaded to which a series of angularly equidistant legs (4) are articulated, two in the example represented in the drawings located in geometrically opposite positions, which hang around the first spindle (1 ).
  • Each leg (4) is articulated to the body (3) along an axis (5) perpendicular to the spindle (1).
  • the second spindle (2) is fixed at its lower end to the body (3), with no possibility of rotation or axial displacement with respect to it.
  • An upper handle (6) that is screwed onto said second spindle.
  • a lower ring (7) which is independent of the second spindle, so that it can rotate and move freely on it.
  • An intermediate ring support (8) that is also independent of the second spindle (2), so that it can rotate and move freely on it, but is related to the upper handle (6) with freedom of rotation but without the possibility of axial displacement with respect thereto, so that when turning in one direction or another said handle (6) will drag in its axial displacement to the annular support (8).
  • the extractor further comprises a series of radial connecting rods (9), in number and position coinciding with the legs (4), which are articulated by their upper end to the annular support (8) and by the lower end to the leg (4) facing , through axes (10 and 11) parallel and perpendicular to the spindles.
  • Each connecting rod (9) has an intermediate longitudinal groove (11), in which a pin (13) integral with the lower ring penetrates, which is movable along said groove (12).
  • the extractor includes two legs (4), located in diametrically opposite positions.
  • Figure 3 shows an extractor that includes three pairs of legs (4), located at 120 °, using the same reference numbers to designate equivalent elements or components.
  • the drive of the extractor of the invention could be carried out automatically, for example by hydraulic systems.
  • the movement of the legs (4), from the upper handle (6), is transmitted through the connecting rods (9) and is controlled by the action of the pins (13) on the edges of the grooves (12) .
  • the arrangement of the connecting rods (9) is applicable, whatever the number of legs (4) of the extractor.
  • the body (3) can be formed by two independent pieces, by way of half-rings, joined together, with interposition of the legs (4) in the case of a two-legged puller, figure 1, or by three pieces joined together shape, in the case of three legs, figure 3.
  • the legs (4) have a longitudinal bending (14), close to the point of articulation (5) with the body (3), in coincidence with whose bending the joint axis (11) is located between legs (4) and connecting rods ( 9).

Abstract

The invention relates to a self-centering part extractor comprising a first spindle (1) and a second spindle (2), said spindles being coaxial to, and independent of one another. A body (3) is screwed to the first spindle (1). The body (3) is secured to the second spindle (2) which supports: a handle (6) that is screwed to the spindle, a lower ring (7) independent of the second spindle (2), and an annular support (8) which is also independent of the second spindle (2) and is secured to the upper handle (6) such that it can rotate freely relative to same. Connecting rods (9) are hinged between the annular support (8) and the legs (4), which rods are connected to the intermediate ring (7) by means of pins (13) and grooves (12).

Description

EXTRACTOR DE PIEZAS AUTO-CENTRANTE  AUTO-CENTERING PARTS EXTRACTOR
Campo de la invención La presente invención se refiere a un extractor de piezas auto-centrante, y más concretamente a un extractor mecánico concebido para facilitar la extracción de piezas, tales como rodamientos, casquillos, etc., que entran a formar parte en infinidad de máquinas y equipos industriales. El extractor de la invención es del tipo que comprenden un husillo descentrado en el que va enroscado un cuerpo, al que van articuladas una serie de patas que cuelgan alrededor del husillo. Field of the Invention The present invention relates to a self-centering part extractor, and more specifically to a mechanical extractor designed to facilitate the extraction of parts, such as bearings, bushings, etc., which become part of an infinity of Industrial machines and equipment. The extractor of the invention is of the type comprising an offset spindle in which a body is screwed, to which a series of legs that hang around the spindle are articulated.
Antecedentes de la invención Background of the invention
En la actualidad existen extractores mecánicos constituidos por patas separables o intercambiables, por ejemplo para lograr extraer piezas de distintas dimensiones, que se fijan en una horquilla deslizante. Esta horquilla forma parte de un armazón transversal donde se ubica un husillo. Con el centrado del husillo y su giro se procede con la extracción de las piezas. Este tipo de extractor es más básico y con posterioridad se han ido desarrollando nuevos extractores, tales como los descritos en los siguientes documentos: Currently there are mechanical extractors consisting of separable or interchangeable legs, for example to be able to extract pieces of different dimensions, which are fixed on a sliding fork. This fork is part of a transverse frame where a spindle is located. With the centering of the spindle and its rotation we proceed with the extraction of the pieces. This type of extractor is more basic and subsequently new extractors have been developed, such as those described in the following documents:
ES 2042353. Esta patente describe un extractor mecánico que comprende un cuerpo en el que va enroscado un husillo descentrado y es portador de una serie de patas que cuelgan alrededor del husillo. El cuerpo central dispone de brazos radiales a los que, a través de un soporte, se conectan las patas. Aunque este extractor presenta un buen acoplamiento entre las patas y el cuerpo central y una gran robustez, presenta como inconvenientes el no poder ser utilizado para extraer piezas desde el interior y que su centrado con la pieza a extraer no es fiable.  ES 2042353. This patent describes a mechanical extractor comprising a body in which an offset spindle is screwed and is a carrier of a series of legs that hang around the spindle. The central body has radial arms to which, through a support, the legs are connected. Although this extractor has a good coupling between the legs and the central body and a great robustness, it presents as disadvantages the not being able to be used to extract pieces from the inside and that its centering with the piece to extract is not reliable.
ES 21 13250. Por esta patente es conocido un extractor en el que cada pata lleva asociada una biela radial que vincula el movimiento de cada pata respecto de puntos excéntricos pertenecientes a un collar que está montado con facultad de giro y movimiento axial respecto del husillo descentrado. Con este extractor se logra alinear el eje del husillo con el eje de la pieza a extraer. Cada pieza está unida con facultad de movimiento a un brazo radial mediante bridas articuladas y cada pata puede moverse independientemente. Un collar montado sobre el husillo accionador proporciona un medio de guiado coaxial a cada pata. Este extractor no permite sin embargo un uso sencillo y eficaz en el proceso de extracción. EN 21 13250. An extractor is known from this patent in which each leg is associated with a radial connecting rod that links the movement of each leg with respect to eccentric points belonging to a collar that is mounted with the power to rotate and axial movement with respect to the offset spindle . With this extractor it is possible to align the spindle axis with the axis of the piece to be extracted. Each piece is connected with the ability to move to a radial arm by means of articulated flanges and each leg can move independently. A collar mounted on the drive spindle provides a coaxial guiding means to each leg. This extractor does not allow however a use Simple and effective in the extraction process.
Descripción de la invención La presente invención tiene por objeto un extractor de piezas del tipo inicialmente expuesto que, teniendo la cualidad de ser auto-centrante, consigue el movimiento al unísono de todas las patas mediante un mecanismo que se regula desde la parte superior del extractor, permitiendo de este modo un uso más sencillo y eficaz en la extracción de piezas. DESCRIPTION OF THE INVENTION The object of the present invention is an extractor of parts of the type initially exposed which, having the quality of being self-centering, achieves the movement in unison of all the legs by means of a mechanism that is regulated from the top of the extractor , thus allowing a simpler and more efficient use in the extraction of parts.
El extractor de la invención comprende un primer husillo, a través del que se lleva el centrado en la pieza a extraer, en el cual va enroscado un cuerpo al que van articuladas las patas, en número de dos o más, las cuales cuelgan alrededor del cuerpo, situados alrededor del husillo. Sobre este primer husillo, en la parte superior del mismo y en posición coaxial, va dispuesto un segundo husillo, de regulación, que va fijado por su extremo inferior al cuerpo antes citado. El primer y segundo husillo son independientes y el segundo husillo va roscado exteriormente. The extractor of the invention comprises a first spindle, through which the centering is carried in the piece to be extracted, in which a body is screwed to which the legs are articulated, in number of two or more, which hang around the body, located around the spindle. On this first spindle, in the upper part thereof and in coaxial position, a second spindle is arranged, which is fixed, which is fixed by its lower end to the aforementioned body. The first and second spindles are independent and the second spindle is threaded externally.
En el segundo husillo van montados: una manivela superior que va enroscada en este segundo husillo; un anillo inferior, que es libremente giratorio y desplazable sobre el segundo husillo; y un soporte anular intermedio, también independiente del segundo husillo, sobre el que puede girar y desplazarse libremente, y que va fijado a la manilla superior con facultad de giro libre pero sin posibilidad de desplazamiento axial respecto de la misma. In the second spindle they are mounted: an upper crank that is screwed into this second spindle; a lower ring, which is freely rotatable and movable on the second spindle; and an intermediate annular support, also independent of the second spindle, on which it can rotate and move freely, and which is fixed to the upper handle with the power of free rotation but without the possibility of axial displacement with respect to it.
Al soporte anular intermedio van articuladas por un extremo una serie de bielas radiales, en número y posición coincidentes con las de las patas, que cuelgan hacia dichas patas, a las que quedan articuladas por su extremo libre. Los ejes de articulación de las bielas al cuerpo anular intermedio y a las patas son paralelos y perpendiculares al eje de los husillos. Cada biela dispone de una ranura longitudinal intermedia que está atravesada por un pasador solidario del anillo inferior. To the intermediate annular support, a series of radial connecting rods are articulated at one end, in number and position coinciding with those of the legs, which hang towards said legs, to which they are articulated by their free end. The articulation axes of the connecting rods to the intermediate annular body and to the legs are parallel and perpendicular to the axis of the spindles. Each connecting rod has an intermediate longitudinal groove that is crossed by a pin integral to the lower ring.
Breve descripción de los dibujos Seguidamente se pasa a describir de manera breve una serie de dibujos que ayudarán a comprender mejor la invención y que se relacionan expresamente con una realización de la misma, que se presenta como un ejemplo no limitativo de la misma.BRIEF DESCRIPTION OF THE DRAWINGS Next, a series of drawings will be described briefly that will help to better understand the invention and that expressly relate to a realization of it, which is presented as a non-limiting example thereof.
La figura 1 muestra una vista en alzado de un extractor constituido de acuerdo con la invención. Figure 1 shows an elevation view of an extractor constituted according to the invention.
La figura 2 muestra en sección el mismo extractor, según la línea de corte ll-ll de la figura 1.  Figure 2 shows in section the same extractor, according to the cutting line ll-ll of Figure 1.
La figura 3 muestra una variante de ejecución, correspondiente a un extractor de tres patas.  Figure 3 shows an execution variant, corresponding to a three-legged puller.
La figura 4 representa el extractor de la figura 1 , en posición de máxima apertura de las patas.  Figure 4 represents the extractor of Figure 1, in the position of maximum opening of the legs.
- La figura 5 representa el extractor de la figura 1 en una posición intermedia de apertura de las patas.  - Figure 5 represents the extractor of figure 1 in an intermediate position for opening the legs.
La figura 6 representa el extractor de la figura 1 con las patas totalmente cerradas. Descripción detallada de un modo de realización  Figure 6 represents the extractor of Figure 1 with the legs fully closed. Detailed description of one embodiment
Las características, funcionamiento y ventajas del extractor de la invención podrán comprenderse mejor con la siguiente descripción del ejemplo de realización mostrado en los dibujos. En las figuras 1 y 2 se muestra un extractor de dos patas, constituido de acuerdo con la invención, el cual comprende un primer husillo (1), alrededor del cual va dispuesto, en posición coaxial, un segundo husillo (2) tubular independiente que va roscado exteriormente. El segundo husillo (2) es de menor longitud que el primer husillo (1) y va dispuesto alrededor de la parte superior del primer husillo (1). En el primer husillo (1) va enroscado un cuerpo (3) al que van articuladas una serie de patas (4) angularmente equidistantes, dos en el ejemplo representado en los dibujos situados en posiciones geometralmente opuestas, que cuelgan alrededor del primer husillo (1). Cada pata (4) va articulada al cuerpo (3) según un eje (5) perpendicular al husillo (1). El segundo husillo (2) va fijado por su extremo inferior al cuerpo (3), sin posibilidad de giro o desplazamiento axial respecto del mismo. The characteristics, operation and advantages of the extractor of the invention can be better understood with the following description of the embodiment shown in the drawings. In Figures 1 and 2 a two-legged puller is shown, constituted according to the invention, which comprises a first spindle (1), around which a second independent tubular spindle (2) is arranged in coaxial position which It is threaded externally. The second spindle (2) is shorter than the first spindle (1) and is arranged around the top of the first spindle (1). In the first spindle (1) a body (3) is threaded to which a series of angularly equidistant legs (4) are articulated, two in the example represented in the drawings located in geometrically opposite positions, which hang around the first spindle (1 ). Each leg (4) is articulated to the body (3) along an axis (5) perpendicular to the spindle (1). The second spindle (2) is fixed at its lower end to the body (3), with no possibility of rotation or axial displacement with respect to it.
En el segundo husillo (2) van montados: In the second spindle (2) they are mounted:
Una manilla superior (6) que va enroscada sobre dicho segundo husillo. Un anillo inferior (7), que es independiente del segundo husillo, de modo que puede girar y desplazarse libremente sobre el mismo. An upper handle (6) that is screwed onto said second spindle. A lower ring (7), which is independent of the second spindle, so that it can rotate and move freely on it.
Un soporte anular intermedio (8) que es también independiente del segundo husillo (2), de modo que puede girar y desplazarse libremente sobre el mismo, pero va relacionado con la manilla superior (6) con libertad de giro pero sin posibilidad de desplazamiento axial respecto de la misma, de modo que al girar en uno u otro sentido dicha manilla (6) arrastrará en su desplazamiento axial al soporte anular (8).  An intermediate ring support (8) that is also independent of the second spindle (2), so that it can rotate and move freely on it, but is related to the upper handle (6) with freedom of rotation but without the possibility of axial displacement with respect thereto, so that when turning in one direction or another said handle (6) will drag in its axial displacement to the annular support (8).
El extractor comprende además una serie de bielas radiales (9), en número y posición coincidentes con las patas (4), que van articuladas por su extremo superior al soporte anular (8) y por el extremo inferior a la pata (4) enfrentada, a través de ejes (10 y 11) paralelos y perpendiculares a los husillos. The extractor further comprises a series of radial connecting rods (9), in number and position coinciding with the legs (4), which are articulated by their upper end to the annular support (8) and by the lower end to the leg (4) facing , through axes (10 and 11) parallel and perpendicular to the spindles.
Cada biela (9) dispone de una ranura (11) longitudinal intermedia, en la que penetra un pasador (13) solidario del anillo inferior, que es desplazable a lo largo de dicha ranura (12). Each connecting rod (9) has an intermediate longitudinal groove (11), in which a pin (13) integral with the lower ring penetrates, which is movable along said groove (12).
En las figuras 1 y 2 el extractor incluye dos patas (4), situadas en posiciones diametralmente opuestas. En la figura 3 se muestra un extractor que incluye tres parejas de patas (4), situadas a 120°, utilizándose los mismos números de referencia para designar elementos o componentes equivalentes. Con la constitución descrita, al girar en uno u otro sentido la manilla superior (6), se provoca el desplazamiento axial del soporte anular intermedio (8) (libremente giratorio respecto de la manilla superior (6)) que arrastra en el mismo sentido, ascendente o descendente, a las bielas (9) que, a su vez, fraccionan o empujan sobre las patas (4), al mismo tiempo que los pasadores (13) y el anillo intermedio (7) se desplazan, también en igual sentido, controlando de forma segura el desplazamiento de las bielas (9) para asegurar la apertura o cierre del conjunto de patas. In Figures 1 and 2 the extractor includes two legs (4), located in diametrically opposite positions. Figure 3 shows an extractor that includes three pairs of legs (4), located at 120 °, using the same reference numbers to designate equivalent elements or components. With the described constitution, when turning the upper handle (6) in one direction or the other, the axial displacement of the intermediate annular support (8) (freely rotatable with respect to the upper handle (6)) that draws in the same direction is caused, ascending or descending, to the connecting rods (9) which, in turn, divide or push on the legs (4), at the same time that the pins (13) and the intermediate ring (7) move, also in the same direction, securely controlling the movement of the cranks (9) to ensure the opening or closing of the set of legs.
El funcionamiento del extractor se describe con referencia a las figuras 4 a 6. En la figura 4, con la manilla (6) en la parte superior del segundo husillo (2), las patas (4) se encuentran en la posición de máxima apertura. Girando la manilla (6) en sentido horario, por ejemplo de forma manual, se desplaza en sentido descendente sobre el primer husillo (2), empujando en igual sentido a las bielas (9), provocando la basculación de las patas (4) alrededor del eje de articulación (10). Durante este movimiento las bielas (9) se desplazan y basculan parcialmente sobre los ejes (10), movimientos que están controlados mediantes las ranuras (12) y pasadores (13), al apoyar los bordes longitudinales de dichas ranuras sobre los pasadores, empujándolos en sentido descendente y desplazando también en sentido descendente el anillo inferior. Al ir moviéndose al unísono todas las bielas (6), con desplazamiento y basculacion sobre los ejes (10 y 1 1), provocan el cierre progresivo de todas las patas, figura 5, hasta el cierre total de las mismas, figura 6. The operation of the extractor is described with reference to Figures 4 to 6. In Figure 4, with the handle (6) at the top of the second spindle (2), the legs (4) are in the position of maximum opening . By turning the handle (6) clockwise, for example manually, it moves down the first spindle (2), pushing the connecting rods (9) in the same direction, causing the legs to swing (4) around of the articulation shaft (10). During this movement the connecting rods (9) move and partially swing on the axles (10), movements that are controlled by means of the grooves (12) and pins (13), by supporting the longitudinal edges of said grooves on the pins, pushing them downwards and also moving the lower ring downwards. When moving all the connecting rods (6) in unison, with displacement and tilting on the axles (10 and 1 1), they cause the progressive closing of all the legs, figure 5, until their total closing, figure 6.
Cuando el anillo inferior (7) llega a su punto inferior, figura 6, hace tope con el cuerpo (3) y la manilla superior (6) queda impedida de poder continuar el giro en igual sentido. Para proceder a la apertura de las patas (4) se invierte el proceso descrito, girando la manilla superior (6) en sentido anti horario. When the lower ring (7) reaches its lower point, figure 6, it stops with the body (3) and the upper handle (6) is prevented from being able to continue the rotation in the same direction. To proceed with the opening of the legs (4), the described process is reversed, turning the upper handle (6) counterclockwise.
El accionamiento del extractor de la invención podría realizarse de forma automática, por ejemplo mediante sistemas hidráulicos. The drive of the extractor of the invention could be carried out automatically, for example by hydraulic systems.
El movimiento de las patas (4), a partir de la manilla superior (6), se transmite a través de las bielas (9) y está controlado por la acción de los pasadores (13) sobre los bordes de las ranuras (12). La disposición de las bielas (9) es aplicable, cualquiera que sea el número de patas (4) del extractor. The movement of the legs (4), from the upper handle (6), is transmitted through the connecting rods (9) and is controlled by the action of the pins (13) on the edges of the grooves (12) . The arrangement of the connecting rods (9) is applicable, whatever the number of legs (4) of the extractor.
El uso de dos husillos en el extractor de la invención, con el posicionamiento del segundo husillo (2) respecto del primero, permite que ambos husillo sean fácilmente accesibles, lo cual facilita la posibilidad de conexión del extractor a sistemas de accionamiento hidráulico. The use of two spindles in the extractor of the invention, with the positioning of the second spindle (2) with respect to the first, allows both spindles to be easily accessible, which facilitates the possibility of connecting the extractor to hydraulic drive systems.
El cuerpo (3) puede estar formado por dos piezas independientes, a modo de semianillos, unidos entre sí, con interposición de las patas (4) para el caso de un extractor de dos patas, figura 1 , o por tres piezas unidas de igual forma, en el caso de tres patas, figura 3. The body (3) can be formed by two independent pieces, by way of half-rings, joined together, with interposition of the legs (4) in the case of a two-legged puller, figure 1, or by three pieces joined together shape, in the case of three legs, figure 3.
Las patas (4) presentan un acodamiento longitudinal (14), próximo al punto de articulación (5) con el cuerpo (3), en coincidencia con cuyo acodamiento está situado el eje de articulación (11) entre patas (4) y bielas (9). The legs (4) have a longitudinal bending (14), close to the point of articulation (5) with the body (3), in coincidence with whose bending the joint axis (11) is located between legs (4) and connecting rods ( 9).

Claims

REIVINDICACIONES
1. - Extractor de piezas auto-centrante, que comprende un primer husillo (1) en el que va enroscado un cuerpo (3) al que van articuladas una serie de patas (4) que cuelgan alrededor del primer husillo (1), caracterizado por que comprende además un segundo husillo (2) tubular exteriormente roscado, coaxial con el primer husillo e independiente del mismo, que va fijado por su extremo inferior al cuerpo (3) y lleva montados, por encima de dicho cuerpo, una manilla superior (6), enroscada sobre el segundo husillo (2); un anillo inferior (7) libremente giratorio y desplazable sobre el segundo husillo (2); y un soporte anular (8) intermedio que está fijado a la manilla superior (6), con facultad de giro libre sobre la misma, que es independiente del segundo husillo (2) y puede girar y desplazarse libremente sobre el mismo; cuyo soporte anular (8) lleva articulada una serie de bielas (9) radiales, en número y posición coincidentes con las patas (4), cada una de cuyas bielas va articulada por su extremo libre a la pata (4) enfrentada y dispone de una ranura longitudinal (12) intermedia que está atravesada por un pasador (13) solidario del anillo inferior (7). 1. - Self-centering parts extractor, comprising a first spindle (1) in which a body (3) is threaded to which a series of legs (4) that hang around the first spindle (1) are articulated, characterized because it also comprises a second externally threaded tubular spindle (2), coaxial with the first spindle and independent of it, which is fixed at its lower end to the body (3) and is mounted, above said body, an upper handle ( 6), screwed on the second spindle (2); a lower ring (7) freely rotatable and movable on the second spindle (2); and an intermediate annular support (8) that is fixed to the upper handle (6), with the power of free rotation thereon, which is independent of the second spindle (2) and can freely rotate and move thereon; whose annular support (8) has a series of radial connecting rods (9) articulated, in number and position coinciding with the legs (4), each of whose connecting rods is articulated by its free end to the opposite leg (4) and has an intermediate longitudinal groove (12) that is crossed by a pin (13) integral with the lower ring (7).
2. - Extractor según reivindicación 1 , caracterizado por que las patas (4) presentan, cerca del punto de articulación (5) con el cuerpo (3), un acodamiento (14) en coincidencia con el cual está situado el eje de articulación (1 1) entre dichas patas y las bielas (9). 2. - Extractor according to claim 1, characterized in that the legs (4) have, near the point of articulation (5) with the body (3), a bending (14) in coincidence with which the articulation axis is located ( 1 1) between said legs and the connecting rods (9).
3. - Extractor según reivindicación 1 , caracterizado por que cada pata (4) está relacionada con el soporte anular (8) a través de una sola biela (9). 3. - Extractor according to claim 1, characterized in that each leg (4) is related to the annular support (8) through a single connecting rod (9).
4. - Extractor según reivindicación 1 , caracterizado por que cada pata (4) está relacionada con el soporte anular (8) a través de dos bielas paralelas y próximas, articuladas a través de puntos coincidentes a las patas (4) y soporte anular (8) y dotadas de sendas ranuras longitudinales enfrentadas a travesadas por otros tantos pasadores (13) solidarios del anillo inferior (7). 4. - Extractor according to claim 1, characterized in that each leg (4) is related to the annular support (8) through two parallel and close rods, articulated through points coinciding with the legs (4) and annular support ( 8) and equipped with two longitudinal grooves facing each other crossed by many other pins (13) integral with the lower ring (7).
PCT/ES2016/070182 2015-02-24 2016-03-17 Self-centering part extractor WO2016135367A1 (en)

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EP16754801.5A EP3266566B1 (en) 2015-02-24 2016-03-17 Self-centering part extractor

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ESP201530227 2015-02-24
ES201530227A ES2543281B1 (en) 2015-02-24 2015-02-24 Self-centering parts extractor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11084152B2 (en) 2019-04-29 2021-08-10 Julio Sampedro Martinez Mechanical device self-centering gear extractor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110181457A (en) * 2019-05-23 2019-08-30 天津蓝巢电力检修有限公司 Air-introduced machine sliding block removal tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1470310A (en) * 1922-06-28 1923-10-09 Ernest E Winchell Wheel and gear remover
US1682956A (en) * 1926-11-10 1928-09-04 Vernon B Dawson Gripping and pulling implement
US4068365A (en) * 1977-02-14 1978-01-17 Brandt Paul W Locking puller device
US5174005A (en) * 1992-06-08 1992-12-29 Somerville Dean S Locking puller device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557833A (en) * 1995-02-22 1996-09-24 Lisle Corporation Puller Device
US7669306B2 (en) * 2007-12-04 2010-03-02 Waldemar Palka Gear puller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1470310A (en) * 1922-06-28 1923-10-09 Ernest E Winchell Wheel and gear remover
US1682956A (en) * 1926-11-10 1928-09-04 Vernon B Dawson Gripping and pulling implement
US4068365A (en) * 1977-02-14 1978-01-17 Brandt Paul W Locking puller device
US5174005A (en) * 1992-06-08 1992-12-29 Somerville Dean S Locking puller device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11084152B2 (en) 2019-04-29 2021-08-10 Julio Sampedro Martinez Mechanical device self-centering gear extractor

Also Published As

Publication number Publication date
EP3266566B1 (en) 2021-08-11
EP3266566A4 (en) 2018-11-21
EP3266566A1 (en) 2018-01-10
ES2543281B1 (en) 2016-05-30
ES2543281A1 (en) 2015-08-17

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