ES1076087U - Reductor epicicloidal (Machine-translation by Google Translate, not legally binding) - Google Patents

Reductor epicicloidal (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES1076087U
ES1076087U ES201131128U ES201131128U ES1076087U ES 1076087 U ES1076087 U ES 1076087U ES 201131128 U ES201131128 U ES 201131128U ES 201131128 U ES201131128 U ES 201131128U ES 1076087 U ES1076087 U ES 1076087U
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pinion
cover
bolt
stem
reducer according
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ES201131128U
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Spanish (es)
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ES1076087Y (en
Inventor
Giovanni Zinzani
Gustavo Casamenti
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Bonfiglioli Riduttori SpA
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Bonfiglioli Riduttori SpA
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H2057/085—Bearings for orbital gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Retarders (AREA)
  • General Details Of Gearings (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Glass Compositions (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Epicyclic gearbox for wind power generators comprising a tubular outer cover (2) having a longitudinal axis (3), a gear ring (4), which forms an integral part of the outer cover (2), a pinion (5), which is coaxial in relation to said shaft (3) and is mounted inside the outer cover (2) in a rotary manner, in such a way that it constitutes a torque of revolution with the cover (2), a planetary carrier (6), which an integral part of the pinion (5), at least one pin (7) forming an integral part of the planetary carrier (6), and at least one planetary gear (8), each of which is mounted in such a way that it rotates in around a respective pin (7) in order to constitute a pair of revolution with the pin (7) and fit with the ring gear (4); characterized in that it comprises one or more friction bearings (16; 22), each of which is disposed in correspondence with a respective revolution torque. (Machine-translation by Google Translate, not legally binding)

Description

Reductor epicicloidal. Epicyclic reducer

OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION

La presente invención se refiere a un reductor epicicloidal para generadores de energía eólica sometido a altas cargas y que funciona a velocidades extremadamente reducidas, o permaneciendo estático durante largos periodos de tiempo que comprende uno o más cojinetes de fricción cada uno de los cuales está dispuesto en correspondencia con un par de revolución respectivo. The present invention relates to an epicyclic reducer for wind power generators subjected to high loads and operating at extremely low speeds, or remaining static for long periods of time comprising one or more friction bearings each of which is arranged in correspondence with a respective revolution pair.

CAMPO DE LA TECNICA FIELD OF THE TECHNIQUE

El presente modelo de utilidad se refiere a un reductor epicicloidal; en particular, el presente modelo de utilidad se refiere a reductor epicicloidal para generadores de energía eólica. The present utility model refers to an epicycloidal reducer; In particular, the present utility model refers to epicyclic reducer for wind power generators.

ANTECEDENTES DE LA INVENCION BACKGROUND OF THE INVENTION

Es bien sabido que el reductor epicicloidal para generadores de energía eólica comprende: una cubierta externa, que es esencialmente tubular y presenta un eje longitudinal; una corona dentada, que es parte integral de la cubierta externa; un piñón, que está dispuesto dentro de la cubierta externa y es coaxial en relación con el eje longitudinal; y al menos otro engranaje planetario, que está instalado alrededor de un perno respectivo del portador planetario y encaja con la corona dentada. It is well known that the epicyclic reducer for wind power generators comprises: an outer shell, which is essentially tubular and has a longitudinal axis; a toothed crown, which is an integral part of the outer shell; a pinion, which is disposed within the outer shell and is coaxial in relation to the longitudinal axis; and at least one other planetary gear, which is installed around a respective bolt of the planetary carrier and fits the crown gear.

Además, es bien sabido que el piñón está montado de manera rotatoria dentro de la cubierta externa, y que el reductor epicicloidal comprende al menos un rodamiento dispuesto entre el piñón y la cubierta externa y al menos un rodamiento dispuesto entre cada perno y el respectivo engranaje planetario. In addition, it is well known that the pinion is rotatably mounted within the outer shell, and that the epicyclic reducer comprises at least one bearing disposed between the pinion and the outer shell and at least one bearing disposed between each bolt and the respective gear planetary.

Un reductor epicicloidal para generadores de energía eólica normalmente se ve sometido a altas cargas y habitualmente funciona a velocidades extremadamente reducidas, a veces también permaneciendo estático durante largos periodos de tiempo. Por tanto, un reductor epicicloidal para generadores de energía eólica presenta el inconveniente de que los rodamientos usados radialmente ocupan mucho espacio, a fin de soportar las cargas estáticas a que se ven sometidos, y son caros. An epicycloidal reducer for wind power generators is normally subjected to high loads and usually operates at extremely low speeds, sometimes also remaining static for long periods of time. Therefore, an epicyclic reducer for wind power generators has the disadvantage that radially used bearings take up a lot of space, in order to withstand the static loads to which they are subjected, and are expensive.

DESCRIPCIÓN DE LA INVENCION DESCRIPTION OF THE INVENTION

El objeto de la presente invención es proporcionar un reductor epicicloidal capaz de superar los inconvenientes antes descritos. The object of the present invention is to provide an epicycloidal reducer capable of overcoming the drawbacks described above.

El reductor epicicloidal para generadores de energía eólica comprende una cubierta externa tubular presentando un eje longitudinal, una corona dentada, que forma parte integral de la cubierta externa, un piñón, que es coaxial en relación con dicho eje y está montado dentro de la cubierta externa de manera rotatoria, de tal modo que constituye un par de revolución con la cubierta, un portador planetario, que forma parte integral del piñón, al menos un perno que forma parte integral del portador planetario, y al menos un engranaje planetario, cada uno de los cuales está montado de tal forma que rota en torno a un perno respectivo a fin de constituir un par de revolución con el perno y encaja con la corona dentada. The epicyclic reducer for wind power generators comprises a tubular outer shell presenting a longitudinal axis, a toothed crown, which is an integral part of the outer shell, a pinion, which is coaxial in relation to said shaft and is mounted inside the outer shell in a rotational manner, such that it constitutes a pair of revolution with the cover, a planetary carrier, which is an integral part of the pinion, at least one bolt that is an integral part of the planetary carrier, and at least one planetary gear, each of which is mounted in such a way that it rotates around a respective bolt in order to constitute a pair of revolution with the bolt and fits with the crown gear.

El reductor epicicloidal comprende además uno o más cojinetes de fricción, cada uno de los cuales está dispuesto en correspondencia con un par de revolución respectivo. The epicycloidal reducer further comprises one or more friction bearings, each of which is arranged in correspondence with a respective torque.

BREVE DESCRIPCIÓN DE LAS FIGURAS BRIEF DESCRIPTION OF THE FIGURES

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La figura 1 es un corte longitudinal, con algunas partes no incluidas para mayor claridad, de una realización preferida del reductor epicicloidal según la presente invención.  Figure 1 is a longitudinal section, with some parts not included for clarity, of a preferred embodiment of the epicycloidal reducer according to the present invention.

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La figura 2 ilustra un primer detalle de figura 1 a mayor escala.  Figure 2 illustrates a first detail of figure 1 on a larger scale.

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La figura 3 ilustra un segundo detalle de la figura 1 a mayor escala.  Figure 3 illustrates a second detail of Figure 1 on a larger scale.

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La figura 4 es similar a figura 1 e ilustra una segunda realización del reductor epicicloidal según la presente invención.  Figure 4 is similar to Figure 1 and illustrates a second embodiment of the epicycloidal reducer according to the present invention.
REALIZACIÓN PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION

En un modo de realización preferente de la invención, el reductor epicicloidal descrito en el apartado de descripción de la invención comprende uno o más cojinetes (cojinetes de fricción) (16; 22), cada uno de los cuales está instalado sobre el piñón (5) y está interpuesto entre el piñón (5) y la cubierta (2). In a preferred embodiment of the invention, the epicyclic reducer described in the description section of the invention comprises one or more bearings (friction bearings) (16; 22), each of which is installed on the pinion (5 ) and is interposed between the pinion (5) and the cover (2).

En otra realización preferida, el reductor epicicloidal comprende uno o más cojinetes (cojinetes de fricción) (16; 22), cada uno de los cuales está instalado sobre un perno (7) y está interpuesto entre el perno (7) y el respectivo engranaje planetario (8). In another preferred embodiment, the epicyclic reducer comprises one or more bearings (friction bearings) (16; 22), each of which is installed on a bolt (7) and is interposed between the bolt (7) and the respective gear planetarium (8).

En otra realización preferida, el cojinete (cojinete de fricción) (16; 22) del reductor epicicloidal es del tipo que tiene brida. In another preferred embodiment, the bearing (friction bearing) (16; 22) of the epicyclic reducer is of the type having flange.

En otra realización preferida, el piñón (5) del reductor epicicloidal comprende un tallo (12) con eje longitudinal (19) y una corona dentada (13) instalada sobre dicho tallo (12); el piñón (5) presenta dos partes longitudinales (14, 15; 14a, 15a) del tallo (12), que están acopladas a la cubierta (2) en revolución; y en el que el reductor epicicloidal (1) comprende un par de cojinetes (cojinetes de fricción) (16; 22), cada uno de los cuales está instalado sobre una respectiva parte longitudinal (14; 15; 14a; 15a) del tallo (12). In another preferred embodiment, the pinion (5) of the epicyclic reducer comprises a stem (12) with longitudinal axis (19) and a toothed crown (13) installed on said stem (12); the pinion (5) has two longitudinal parts (14, 15; 14a, 15a) of the stem (12), which are coupled to the cover (2) in revolution; and wherein the epicyclic reducer (1) comprises a pair of bearings (friction bearings) (16; 22), each of which is installed on a respective longitudinal part (14; 15; 14a; 15a) of the stem ( 12).

En otra realización preferida, la corona dentada (13) del reductor epicicloidal está interpuesta entre las partes longitudinales (14, 15) a lo largo de dicho eje (3) del piñón (5). In another preferred embodiment, the toothed crown (13) of the epicycloidal reducer is interposed between the longitudinal portions (14, 15) along said axis (3) of the pinion (5).

En una realización aun más preferida la corona dentada (13) del reductor epicicloidal está montada en correspondencia con un extremo suelto del tallo (12) del piñón (5) y sobresale de la cubierta (2). In an even more preferred embodiment, the toothed crown (13) of the epicyclic reducer is mounted in correspondence with a loose end of the stem (12) of the pinion (5) and protrudes from the cover (2).

En otra realización preferida, el reductor epicicloidal comprende al menos una rodadura (23), que se instala sobre el piñón (5) y está axialmente adyacente con respecto a la corona dentada (13). In another preferred embodiment, the epicyclic reducer comprises at least one raceway (23), which is installed on the pinion (5) and is axially adjacent with respect to the toothed crown (13).

En otra realización preferida, el reductor epicicloidal comprende al menos una rodadura (23), que se instala sobre un respectivo perno (7) y está axialmente adyacente con respecto a un respectivo engranaje planetario (8). In another preferred embodiment, the epicyclic reducer comprises at least one raceway (23), which is installed on a respective bolt (7) and is axially adjacent with respect to a respective planetary gear (8).

La invención será ahora descrita en referencia a las figuras que la acompañan, que ilustran una realización no limitante. The invention will now be described in reference to the accompanying figures, which illustrate a non-limiting embodiment.

En la figura 1, el número de referencia 1 indica un reductor epicicloidal para generadores de energía eólica en conjunto, el cual comprende: una cubierta externa (2), que es esencialmente tubular y presenta un eje longitudinal (3); una corona dentada (4), que forma parte integral de la cubierta externa (2) y es coaxial en relación con el eje (3); un piñón (5), que es coaxial en relación con el eje (3) y está montado dentro de la cubierta (2) de manera rotatoria; un portador planetario (6), que es coaxial en relación con el eje (3), forma parte integral del piñón In Figure 1, reference number 1 indicates an epicyclic reducer for wind power generators as a whole, which comprises: an outer shell (2), which is essentially tubular and has a longitudinal axis (3); a toothed crown (4), which is an integral part of the outer cover (2) and is coaxial in relation to the axis (3); a pinion (5), which is coaxial in relation to the shaft (3) and is rotatably mounted inside the cover (2); a planetary carrier (6), which is coaxial in relation to the axis (3), forms an integral part of the pinion

(5) y está dispuesto dentro de la cubierta (2); al menos un perno (7), cada uno de los cuales forma parte integral del portador planetario (6); y al menos un engranaje planetario (8), cada uno de los cuales está instalado alrededor de un perno respectivo (7) y encaja con la corona dentada (4). (5) and is arranged inside the cover (2); at least one bolt (7), each of which is an integral part of the planetary carrier (6); and at least one planetary gear (8), each of which is installed around a respective bolt (7) and fits the toothed crown (4).

En particular, el piñón (5) está montado de tal modo que constituye un par de revolución con la cubierta (2); igualmente, cada engranaje planetario (8) está montado sobre un perno respectivo (7) de tal modo que constituye un par de revolución con el propio perno (7). In particular, the pinion (5) is mounted in such a way that it constitutes a pair of revolution with the cover (2); likewise, each planetary gear (8) is mounted on a respective bolt (7) in such a way that it constitutes a revolution pair with the bolt itself (7).

Como se explicará mejor más adelante, el reductor (1) comprende uno o más cojinetes (o “cojinetes de fricción”), cada uno de los cuales está dispuesto en correspondencia con un respectivo par de revolución. As will be better explained below, the reducer (1) comprises one or more bearings (or "friction bearings"), each of which is arranged in correspondence with a respective torque.

Según las figuras 1 y 2, la cubierta externa (2) presenta un hueco interno (10), que es esencialmente cilíndrico y coaxial en relación con el eje (3), y una abertura lateral (11), que establece una comunicación entre una parte longitudinal del hueco (10) y el exterior. El hueco (10) presenta secciones con diferentes anchos radiales; en particular, el hueco (10) presenta una mayor dimensión radial en correspondencia con la sección longitudinal frente a la cual está la abertura (11). According to figures 1 and 2, the outer cover (2) has an internal hollow (10), which is essentially cylindrical and coaxial in relation to the shaft (3), and a lateral opening (11), which establishes a communication between a longitudinal part of the hole (10) and the outside. The hole (10) has sections with different radial widths; in particular, the hole (10) has a larger radial dimension in correspondence with the longitudinal section in front of which is the opening (11).

El piñón (5) comprende un tallo (12) con eje (19), sobre el cual está instalado – de modo conocido y esquemáticamente ilustrado – una corona dentada (13), que está dispuesta en una posición longitudinal intermedia, a fin de dividir el tallo (12) en dos partes longitudinales, que de aquí en adelante se indicarán respectivamente mediante los números de referencia 14 y 15. The pinion (5) comprises a stem (12) with shaft (19), on which is installed - in a known and schematically illustrated manner - a toothed crown (13), which is arranged in an intermediate longitudinal position, in order to divide the stem (12) in two longitudinal parts, which hereafter will be indicated respectively by reference numbers 14 and 15.

El piñón (5) está montado dentro del hueco (10) a fin de rotar en torno al eje (3) y la corona dentada (13) está dispuesta a lo largo del eje (3) en correspondencia con la abertura, de tal manera que al menos una parte circunferencial de la propia corona dentada (13) sobresalga de la cubierta (2). Las dos partes longitudinales (14, 15) del tallo (12) están acopladas a la cubierta (2) de manera rotatoria; en particular, el reductor epicicloidal (1) comprende un par de cojinetes o cojinetes de fricción (16) (también conocidos como bujes), cada uno de los cuales está instalado sobre una parte longitudinal respectiva (14, 15) del tallo (12) y está interpuesta entre el tallo (12) y una superficie respectiva interna (17, 18) de la cubierta (2). The pinion (5) is mounted inside the hole (10) in order to rotate around the shaft (3) and the toothed crown (13) is arranged along the shaft (3) in correspondence with the opening, in such a way that at least a circumferential part of the toothed crown itself (13) protrudes from the cover (2). The two longitudinal parts (14, 15) of the stem (12) are rotatably coupled to the cover (2); in particular, the epicyclic reducer (1) comprises a pair of bearings or friction bearings (16) (also known as bushings), each of which is installed on a respective longitudinal part (14, 15) of the stem (12) and is interposed between the stem (12) and a respective internal surface (17, 18) of the cover (2).

Según la figura 2, el cojinete (cojinete de fricción) (16) tiene brida; en otras palabras, cada cojinete (cojinete de fricción) (16) comprende un cuerpo esencialmente tubular, del cual sobresale radialmente un disco (20). Según la figura 2, cada disco (20) del cojinete (cojinete de fricción) (16) está axialmente dispuesto entre una pared lateral de la corona dentada (13) y la cubierta (2). According to Figure 2, the bearing (friction bearing) (16) has a flange; in other words, each bearing (friction bearing) (16) comprises an essentially tubular body, from which a disk (20) protrudes radially. According to Figure 2, each disc (20) of the bearing (friction bearing) (16) is axially disposed between a side wall of the toothed crown (13) and the cover (2).

Según la figura 1, el portador planetario (6) está conectado con un extremo longitudinal del piñón (5) y es coaxial en relación con el eje (3). Como se mencionó antes, el reductor epicicloidal (1) comprende cierto número de pernos (7), que presentan un eje (21) paralelo al eje (3) y están distribuidos de forma uniforme alrededor del propio eje (3). Según la figura 3, los pernos (7) están conectados – de manera conocida y esquemáticamente ilustrada - al portador planetario (6) y alrededor de cada perno (7) hay instalado un engranaje planetario respectivo (8), que encaja con la corona dentada (4). According to Figure 1, the planetary carrier (6) is connected to a longitudinal end of the pinion (5) and is coaxial in relation to the axis (3). As mentioned before, the epicycloidal reducer (1) comprises a number of bolts (7), which have an axis (21) parallel to the axis (3) and are distributed evenly around the axis (3) itself. According to Figure 3, the bolts (7) are connected - in a known and schematically illustrated manner - to the planetary carrier (6) and around each bolt (7) a respective planetary gear (8) is installed, which fits with the crown gear (4).

Según la figura 3, el reductor epicicloidal (1) comprende un cojinete (cojinete de rodamiento) (22), que está dispuesto entre cada perno (7) y el engranaje planetario respectivo (8), y un par de rodaduras (23) que contienen de modo axial, que están instaladas alrededor del perno (7) y están espaciadas a lo largo del eje (21) del engranaje planetario (8), cada una de dichas rodaduras (23) están interpuestas de modo axial entre el engranaje planetario (8) y portador planetario (6). According to Figure 3, the epicyclic reducer (1) comprises a bearing (bearing bearing) (22), which is arranged between each bolt (7) and the respective planetary gear (8), and a pair of bearings (23) which they contain axially, which are installed around the bolt (7) and are spaced along the axis (21) of the planetary gear (8), each of said bearings (23) are interposed axially between the planetary gear ( 8) and planetary carrier (6).

Según la figura 1, la corona dentada (4) encaja con cada engranaje planetario (8), es coaxial en relación con el eje (3) y está axialmente fijada a la cubierta externa (2) mediante tornillos de fijación (9), que se extienden en paralelo al eje (3) y están distribuidos de forma uniforme alrededor del propio eje (3). According to figure 1, the toothed crown (4) fits with each planetary gear (8), is coaxial in relation to the shaft (3) and is axially fixed to the outer cover (2) by means of fixing screws (9), which They extend parallel to the axis (3) and are distributed evenly around the axis (3) itself.

La figura 4 ilustra una segunda realización del reductor epicicloidal (1), en la cual el piñón (5) está montado de tal manera que sobresale con respecto a la cubierta (2); en otras palabras, la corona dentada (13) del piñón (5) está montada en correspondencia con un extremo suelto del tallo (12), sobresaliendo dicho extremo suelto de la cubierta (12). En particular, el tallo (12) presenta una o más partes de la superficie, a saber un par de partes longitudinales, que de aquí en adelante se indicarán mediante los números de referencia 14a y 15a y están acoplados a la cubierta externa (2) de manera rotatoria. En este caso, el reductor epicicloidal (1) comprende un par de cojinetes (cojinetes de fricción) (16), cada uno de los cuales está instalado sobre una parte respectiva (14a) o (15a) y está interpuesto entre el tallo (12) y la cubierta (2). Figure 4 illustrates a second embodiment of the epicycloidal reducer (1), in which the pinion (5) is mounted such that it protrudes with respect to the cover (2); in other words, the toothed crown (13) of the pinion (5) is mounted in correspondence with a loose end of the stem (12), said loose end of the cover protruding (12). In particular, the stem (12) has one or more parts of the surface, namely a pair of longitudinal parts, which hereafter will be indicated by reference numbers 14a and 15a and are coupled to the outer cover (2) in a rotating way. In this case, the epicyclic reducer (1) comprises a pair of bearings (friction bearings) (16), each of which is installed on a respective part (14a) or (15a) and is interposed between the stem (12 ) and cover (2).

Según una versión que no está ilustrada, el reductor epicicloide (1) comprende al menos un cojinete (cojinete de fricción), que es semejante al cojinete (cojinete de fricción) (22) (que no tiene brida), presenta las dimensiones adecuadas, y está dispuesto entre el piñón (5) y la cubierta (2). According to a version that is not illustrated, the epicycloid reducer (1) comprises at least one bearing (friction bearing), which is similar to the bearing (friction bearing) (22) (which does not have a flange), has the appropriate dimensions, and is arranged between the pinion (5) and the cover (2).

Según otra versión que no está ilustrada, el reductor epicicloide (1) comprende al menos un cojinete (cojinete de fricción), que es semejante al cojinete (cojinete de fricción) (16) del tipo que tiene brida, presenta las dimensiones adecuadas, y está dispuesta entre el perno (7) y el engranaje planetario (8). According to another version that is not illustrated, the epicycloid reducer (1) comprises at least one bearing (friction bearing), which is similar to the bearing (friction bearing) (16) of the type having flange, has the appropriate dimensions, and It is arranged between the bolt (7) and the planetary gear (8).

Debido a lo antes descrito, el reductor epicicloidal (1) presenta la ventaja de ser más barato y ocupar radialmente menos espacio respecto al reductor epicicloidal del tipo conocido; de hecho, con respecto al rodamiento que se usa actualmente y dada una carga igual que soportar, los cojinetes (cojinetes de fricción) (16 y 22) ocupan radialmente menos espacio, y son más adecuados para soportar cargas casi estáticas y son más baratos. Due to the aforementioned, the epicycloidal reducer (1) has the advantage of being cheaper and occupy radially less space with respect to the epicycloidal reducer of the known type; in fact, with respect to the bearing that is currently used and given a load equal to bearing, the bearings (friction bearings) (16 and 22) occupy radially less space, and are more suitable for supporting almost static loads and are cheaper.

Claims (9)

REIVINDICACIONES 1. Reductor epicicloidal para generadores de energía eólica comprendiendo una cubierta externa tubular (2) presentando un eje longitudinal (3), una corona dentada (4), que forma parte integral de la cubierta externa (2), un piñón (5), que es coaxial en relación con dicho eje (3) y está montado dentro de la cubierta externa (2) de manera rotatoria, de tal modo que constituye un par de revolución con la cubierta (2), un portador planetario (6), que forma parte integral del piñón (5), al menos un perno (7) que forma parte integral del portador planetario (6), y al menos un engranaje planetario (8), cada uno de los cuales está montado de tal forma que rota en torno a un perno respectivo 1. Epicycloidal reducer for wind power generators comprising a tubular outer shell (2) having a longitudinal axis (3), a toothed crown (4), which forms an integral part of the outer shell (2), a pinion (5), which is coaxial in relation to said axis (3) and is rotatably mounted inside the outer cover (2), such that it constitutes a revolution pair with the cover (2), a planetary carrier (6), which It is an integral part of the pinion (5), at least one bolt (7) that forms an integral part of the planetary carrier (6), and at least one planetary gear (8), each of which is mounted in such a way that it rotates in around a respective bolt (7) a fin de constituir un par de revolución con el perno (7) y encaja con la corona dentada (4); caracterizado porque comprende uno o más cojinetes de fricción (16; 22), cada uno de los cuales está dispuesto en correspondencia con un par de revolución respectivo. (7) in order to constitute a pair of revolution with the bolt (7) and fit with the crown gear (4); characterized in that it comprises one or more friction bearings (16; 22), each of which is arranged in correspondence with a respective torque.
2. 2.
Reductor epicicloidal según la reivindicación 1 caracterizado porque cada uno de los cojinetes de fricción (16; 22) está instalado sobre el piñón (5) y está interpuesto entre el piñón (5) y la cubierta (2). Epicyclic reducer according to claim 1 characterized in that each of the friction bearings (16; 22) is installed on the pinion (5) and is interposed between the pinion (5) and the cover (2).
3. 3.
Reductor epicicloidal según cualquiera de las reivindicaciones 1 ó 2 caracterizado porque cada uno de los cojinetes de fricción (16; 22) está instalado sobre un perno (7) y está interpuesto entre el perno (7) y el respectivo engranaje planetario (8). Epicycloidal reducer according to any one of claims 1 or 2 characterized in that each of the friction bearings (16; 22) is installed on a bolt (7) and is interposed between the bolt (7) and the respective planetary gear (8).
4. Four.
Reductor epicicloidal según cualquiera de las reivindicaciones 1 a 3, caracterizado porque el cojinete de fricción (16; 22) es del tipo que tiene brida. Epicycloidal reducer according to any one of claims 1 to 3, characterized in that the friction bearing (16; 22) is of the type having a flange.
5. 5.
Reductor epicicloidal según cualquiera de las reivindicaciones 1 a 4, caracterizado porque el piñón (5) comprende un tallo (12) con eje longitudinal (19) y una corona dentada (13) instalada sobre dicho tallo (12); el piñón Epicycloidal reducer according to any one of claims 1 to 4, characterized in that the pinion (5) comprises a stem (12) with a longitudinal axis (19) and a toothed crown (13) installed on said stem (12); the pinion
(5) presenta dos partes longitudinales (14, 15; 14a, 15a) del tallo (12), que están acopladas a la cubierta (2) en revolución; y en el que el reductor epicicloidal (1) comprende un par de cojinetes de fricción (16; 22), cada uno de los cuales está instalado sobre una respectiva parte longitudinal (14; 15; 14a; 15a) del tallo (12). (5) has two longitudinal parts (14, 15; 14a, 15a) of the stem (12), which are coupled to the cover (2) in revolution; and wherein the epicyclic reducer (1) comprises a pair of friction bearings (16; 22), each of which is installed on a respective longitudinal part (14; 15; 14a; 15a) of the stem (12).
6. 6.
Reductor epicicloidal según la reivindicación 5, caracterizado porque la corona dentada (13) está interpuesta entre las partes longitudinales (14, 15) a lo largo de dicho eje (3) del piñón (5). Epicycloidal reducer according to claim 5, characterized in that the toothed crown (13) is interposed between the longitudinal parts (14, 15) along said axis (3) of the pinion (5).
7. 7.
Reductor epicicloidal según la reivindicación 5, caracterizado porque la corona dentada (13) está montada en correspondencia con un extremo suelto del tallo (12) del piñón (5) y sobresale de la cubierta (2). Epicycloidal reducer according to claim 5, characterized in that the toothed crown (13) is mounted in correspondence with a loose end of the stem (12) of the pinion (5) and protrudes from the cover (2).
8. 8.
Reductor epicicloidal según cualquiera de las reivindicaciones 1 a 7 caracterizado porque comprende al menos una rodadura (23) instalada sobre el piñón (5) y axialmente adyacente con respecto a la corona dentada (13). Epicycloidal reducer according to any one of claims 1 to 7, characterized in that it comprises at least one raceway (23) installed on the pinion (5) and axially adjacent with respect to the toothed crown (13).
9. 9.
Reductor epicicloidal según cualquiera de las reivindicaciones 1 a 7 caracterizado porque comprende al menos una rodadura (23) instalada sobre un respectivo perno (7) y axialmente adyacente con respecto a un respectivo engranaje planetario (8). Epicycloidal reducer according to any one of claims 1 to 7, characterized in that it comprises at least one raceway (23) installed on a respective bolt (7) and axially adjacent with respect to a respective planetary gear (8).
ES201131128U 2010-10-29 2011-10-31 EPICICLOIDAL REDUCER Expired - Fee Related ES1076087Y (en)

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CN104747690A (en) * 2013-12-27 2015-07-01 现代岱摩斯股份有限公司 A gearbox structure with an integrated type locating pin and an assembling method
EP2933483A1 (en) * 2014-04-15 2015-10-21 Siemens Aktiengesellschaft Drive system for a wind turbine
FR3035375B1 (en) * 2015-04-23 2018-07-27 Safran Aircraft Engines EPICYCLOIDAL GEAR TRAIN REDUCER FOR A TURBOMACHINE.
WO2018024761A1 (en) * 2016-08-04 2018-02-08 Siemens Aktiengesellschaft Wind turbine transmission
US10495210B2 (en) 2017-11-09 2019-12-03 General Electric Company Integral ring gear and torque arm for a wind turbine gearbox
AT521071B1 (en) * 2018-03-23 2019-12-15 Miba Gleitlager Austria Gmbh Wind turbine transmission and method for producing a wind turbine transmission
KR102276982B1 (en) * 2019-09-27 2021-07-13 엘지전자 주식회사 Geared inwheel motor
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CN202360735U (en) 2012-08-01
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ES1076087Y (en) 2012-05-03
ITBO20100109U1 (en) 2012-04-30
DK201100156U3 (en) 2012-03-23

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