WO2010020702A1 - Dispositif de transmission - Google Patents

Dispositif de transmission Download PDF

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Publication number
WO2010020702A1
WO2010020702A1 PCT/ES2009/070345 ES2009070345W WO2010020702A1 WO 2010020702 A1 WO2010020702 A1 WO 2010020702A1 ES 2009070345 W ES2009070345 W ES 2009070345W WO 2010020702 A1 WO2010020702 A1 WO 2010020702A1
Authority
WO
WIPO (PCT)
Prior art keywords
planetarium
crown
train
satellites
torque
Prior art date
Application number
PCT/ES2009/070345
Other languages
English (en)
Spanish (es)
Inventor
Pedro Manuel LIBRERO MARTÍN
Original Assignee
Librero Martin Pedro Manuel
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 Librero Martin Pedro Manuel filed Critical Librero Martin Pedro Manuel
Publication of WO2010020702A1 publication Critical patent/WO2010020702A1/fr

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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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/74—Complexes, not using actuable speedchanging or regulating members, e.g. with gear ratio determined by free play of frictional or other forces

Definitions

  • the present invention can be included within the technical field of transmissions.
  • the object of the invention refers to a transmission device of reduced dimensions, which allows the staggered transmission of torque with very high energy efficiency and without periods of disconnection of the transmission.
  • Said characteristic of the operation of the machines that incorporate transmissions implies the need to implement transmissions that allow the selection of a plurality of transmission relations between the engine (primary of the transmission) and the output of the machine.
  • gearboxes both manual and sequential and automatic, are a solution to this need, which combined with a clutch, offer a very high energy efficiency, due to its operation by gears. They have, however, the disadvantage that, except for the automatic ones, they require the user's action to select the desired relationship at each moment, as well as all of them require the momentary disconnection of the transmission (idle rotation of the engine) every time that such selection occurs. Additionally, gearboxes are bulky and therefore heavy, as well as expensive and require careful maintenance.
  • the present invention solves the technical problem posed by means of a transmission device incorporating 3 epicyclic gear trains and a clutch system.
  • the differential train is a reducing train and is responsible for dividing the engine torque into two vectors: torque vector and speed vector.
  • the velocity vector is acting on the primary, as will be explained below and the torque vector will be transmitted to the torque train.
  • the differential train comprises a first crown, a first planetarium and first satellites.
  • the first crown is driven by the drive motor, whereby said first crown is part of the primary of the transmission.
  • the first planetarium is connected to an output shaft, with which it is part of the secondary of the transmission.
  • the first satellites mesh with the first planetarium and with the first crown and said first satellites are linked together by means of a first satellite carrier which, in turn, drives a second planetarium of the torque train.
  • the torque train is a reducing train and produces an increase in the torque vector it receives from the differential train.
  • the pair train comprises a second crown, a second planetarium and a few second satellites.
  • the second planetarium constitutes the input of the torque train, since it is operated by the first satellite carrier as an output of the differential train.
  • the conditions of movement of the second crown, as well as the means to maintain these conditions, will be explained later.
  • the second crown is a static element.
  • the second satellites are driven by the second planetarium with a movement of rotation around themselves and of translation through the interior of the second crown, said second satellites constituting the output of the torque train.
  • the second satellites are linked together by means of a second satellite carrier which, in turn, drives a third planetary of the balance train.
  • the balance train performs the sum on the secondary axis of the amplified torque vector from the torque train and the differential train speed vector.
  • the balance train comprises a third crown, a third planetarium and third satellites.
  • the balance train entrance is the third planetarium powered by the second satellite carrier.
  • the conditions of movement of the third crown, as well as the means to maintain these conditions, will be explained later.
  • the third crown is a static element, as is the second crown. Consequently, the output of the balance train is constituted by the third satellites, which are connected to a third satellite carrier.
  • the balance train is a train with a one-to-one transmission ratio between the third planetarium and the third satellite carrier.
  • the balance train is a train with a one-to-one transmission ratio between the third planetarium and the third satellite carrier.
  • several solutions can be adopted. One of them consists in arranging the third satellites according to a determined number of chain-operated sets, so that the successive transmission relations between the sets is adequate to achieve a global unitary relationship, as just indicated.
  • the arrangement of the third satellites is according to four sets: first set, second set, third set and fourth set, arranged as explained in continuation:
  • the first set is powered by the third planetarium.
  • the actuation of the first set by the third planetarium is produced by means of a chain.
  • said actuation of the first set by the third planetarium is produced by means of direct engagement.
  • the rotation of the second set is integral to the rotation of the first set, since both share the same rotation tree.
  • the third set is driven by the second set.
  • the drive of the third set by the second set is produced by means of a chain.
  • said actuation of the third set by the second set is produced by means of direct engagement.
  • the turn of the fourth set is in solidarity with the turn of the third set, since both share the same rotation tree.
  • the fourth set meshes with the third crown.
  • the first, second, third and fourth sets are joined by a third satellite carrier, which rotates driven by said first set, second set, third set and fourth set.
  • Said third satellite carrier is connected to the secondary axis of the transmission.
  • the value of the output torque is independent of the use of satellites or crowns for the output. Satellites are used as output and crowns as static elements for simplicity of construction.
  • the invention allows third satellites to rotate and move without the need for movement in the third crown or in the third planetarium.
  • the staticity of the second and third crowns is a requirement for torque transmission.
  • the invention incorporates a synchronization system that allows switching between rotation with equal speed and opposite directions for the second and third crowns or resting of both. In the case of resting of both second and third crowns, torque transmission occurs as explained above. In case of rotation of both second and third crowns with equal speed and opposite directions, the transmission stops and the first and second crowns act as clutch of the transmission.
  • the synchronization system can have any of the constructions usually used in the technique.
  • the synchronization system may be constituted by spring-type elastic elements, properly governed, or by a hydraulic mechanism.
  • the synchronization system causes the rotation movement in the opposite direction of the second and third crowns by means of a series of bevel gears that engage with both second and third crowns.
  • Said second and third crowns are preferably arranged concentrically and have radial teeth in their faces, engaging said teeth with the mentioned bevel gears, which are located between both second and third crowns.
  • any hydraulic or elastic fixation and release system is used, as mentioned above.
  • the resistance torque on the secondary axis is usually greater than the torque transmitted by the first set of satellites on the first planetarium, so that said first satellites cannot rotate the first planetarium attached to the secondary axis.
  • the first satellites move around said first planetarium while they rotate About themselves
  • the torque transmitted by the first crown on the first satellites is not transmitted in turn to the first planetarium completely, but only partially, in the form of a velocity vector, as indicated above.
  • the rest called the torque vector, is transmitted by turning the first satellite carrier powered by the first satellites in their displacement around the first planetarium. This is why the differential train is called differential, because it divides the input torque into two vectors.
  • the balance train In the balance train, the sum of the velocity vector and the torque vector is produced.
  • the second satellites, torque train output, are connected to the third planetarium, balance train input.
  • the third planetarium operates the third satellites in the manner explained above and said third satellites actuate the third satellite carrier, which in turn is attached to the secondary. In this way, the velocity vector and the amplified torque vector and transferred to the secondary act simultaneously, whereby the developed torque is sufficient to overcome the secondary resistance and initiate movement.
  • the beginning of the movement produces a feedback on the kinematic characteristics of the transmission.
  • the secondary is linked to the first planetarium, therefore, said first planetarium begins to move, with which the movements of the chain are consecutively reduced.
  • said secondary movement is stabilized, so that secondary movement occurs at a speed of equilibrium between the engine rotation regime and the secondary load.
  • the first satellites enter at rest and the transmission is direct between the first planetary and the secondary, without the intervention of the torque and balance trains.
  • the device of the invention When the conditions of engine speed and / or load in the secondary vary, the device of the invention will find the new equilibrium situation in the manner that has been explained and without the need for intervention by the user. This has the advantageous consequence of improving the energy efficiency of the transmission, since it is not necessary to use the clutch each time the torque ratio needs to be varied.
  • Figure 1. Shows a scheme of the distribution of the elements of the invention.
  • Figure 2. Shows a scheme of the distribution of the elements of the differential train.
  • Figure 3. Shows a scheme of the distribution of the elements of the torque train.
  • Figure A - Shows a scheme of the distribution of the elements of the balance train.
  • Figure 5. Shows a perspective of the first crown.
  • Figure 6.- Shows a perspective of the first satellite carrier.
  • Figure 7. Shows a perspective of the first planetarium.
  • Figure 8.- Shows a perspective of the second satellite carrier.
  • Figure 9. Shows a perspective of the third satellites.
  • Figure 10.- Shows a second perspective of the third satellites.
  • Figure 11.- Shows a perspective of the synchronism system.
  • the transmission device comprises three epicyclic gear trains: a differential train (1), a torque train (2) and a balance train (3).
  • the invention further incorporates a synchronism system (7).
  • the differential train (1) divides the input torque into two vectors: a speed vector, retained in the differential train (1), and a torque vector, transmitted to the torque train (2).
  • the differential train (1) comprises a first crown (11), a first planetarium (12) and first satellites (13).
  • the first crown (11) is connected to a drive motor (primary of the transmission), so it constitutes the input of the transmission.
  • the first planetarium (12) is attached to the secondary axis.
  • the first satellites (13) engage with the first planetarium (12) and with the first crown (11), said first satellites (13) being able to make a movement composed of rotation around themselves and circular translation around the first planetarium ( 12).
  • the first satellites (13) are connected to a first satellite carrier (4) that rotates driven by said first satellites (13).
  • the resistant pair in the secondary is greater than the pair transmitted by the first crown (11) to the first satellites (13), whereby said first satellites (13) cannot operate the first planetarium (12) connected to the secondary. Therefore, said first satellites (13) revolve around themselves while moving around the first planetarium (12).
  • the torque train (2) is a reducing train and in turn comprises a second crown (21), a second planetarium (22) and a few second satellites (23).
  • the second planetarium (22) is connected to and is driven by the first satellite carrier (4) by means of a first connecting gear (10), so that the second planetarium (22) constitutes the input of the torque train (2) .
  • the second crown (21) is kept static during the transmission by means of a synchronism system (7) that will be explained later, the output of the torque train (2) is the second satellites (23), which are operated by the second planetarium (22).
  • the second satellites (23) perform a rotation movement on themselves and a translation movement, externally around the second planetarium (22) and internally around the second crown (21).
  • the second satellites (23) are attached to a second satellite carrier
  • the torque vector introduced in the torque train (2) is multiplied in said torque train (2) by the value of the transmission ratio of the torque train (2) and said torque vector leaves the torque train (2) ) towards the balance train (3).
  • the balance train (3) comprises a third crown (31), a third planetarium (32) and third satellites.
  • the balance train input (3) is constituted by the third planetarium (32) which is driven by the second satellite carrier (5) by means of a second connecting gear (not shown). Since the third crown (31) is kept static during the transmission by means of a synchronism system (7) that will be explained later, the output of the balance train (3) is the third satellites, which are operated by the third planetarium (32).
  • the third satellites perform a rotation movement on themselves and a translation movement, externally around the third planetarium (32) and internally around the third crown (31).
  • the third satellites are connected to a third satellite carrier (6) and transmit their movement to said third satellite carrier (6), which in turn is connected to the secondary.
  • the third satellites comprise 4 sets of satellites: first set (33), second set (34), third set (35 ) and fourth set (36), related as follows: - the first set (33) is driven by the third planetarium (32).
  • the actuation of the first assembly (33) by the third planetarium (32) is produced by means of a chain.
  • said actuation of the first assembly (33) by the third planetarium (32) is produced by means of direct engagement.
  • the rotation of the second set (34) is integral to the rotation of the first set (33), since both share the same rotation tree.
  • the third set (35) is driven by the second set (34).
  • the drive of the third set (35) by the second set (34) is produced by means of a chain.
  • said actuation of the third set (35) by the second set (34) is produced by means of direct engagement.
  • the turn of the fourth set (36) is integral to the turn of the third set
  • the fourth set (36) meshes with the third crown (31).
  • a synchronism system (7) is used to cause the restrictions necessary for the operation of the transmission in the second (21) and third (31) crowns.
  • the synchronization system (7) comprises known mechanical devices, of elastic or hydraulic type, for example, to cause the stopping of the second (21) and third (31) crowns and allow the transmission to function in the manner explained.
  • the synchronism system (7) also comprises synchronism gears (8) used as a clutch to allow the second (21) and third (31) crowns to simultaneously have rotational movements with equal speed and opposite directions.
  • the second (21) and third (31) crowns are arranged concentrically and synchronized teeth (9) are carved on their opposite faces according to radial direction, between which the gears are arranged. synchronism (8), which engage with said second (21) and third (31) crowns.
  • the balance train (3) the sum of the velocity vector and the amplified torque vector is produced, so that the movement begins. Once the equilibrium for torque - speed - resistance has been reached, the transmission occurs directly between the differential train (1) and the secondary one.
  • the transmission device of the invention adapts in the manner explained without the need for intervention by the user.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

La présente invention concerne trois trains d'engrenages épicycloïdaux; un train différentiel (1) qui divise le couple d'entrée en un vecteur de vitesse et un vecteur de couple, un train de couple (2) réducteur qui amplifie le vecteur de couple; un train d'équilibrage (3) de relation de transmission unitaire, qui additionne dans le second train le vecteur de vitesse et le vecteur de couple amplifié. Le train différentiel (1) comprend une première couronne (11) solidaire du premier train, un premier planétaire (12) solidaire du second train et des premiers satellites (13) reliés à un premier porte-satellites (4). Le train de couple (2) comprend le second planétaire (12) actionné par le premier porte-satellites (4), une seconde couronne (21) et des seconds satellites (23) reliés à un second porte-satellites (5) qui actionne un troisième planétaire (32). Le train d'équilibrage (3) comprend le troisième planétaire (32), une troisième couronne (31) et un troisième porte-satellites (6) solidaire du second porte-satellites. Le dispositif comprend un système de synchronisation (7) permettant de commuter entre le repos de la seconde couronne (21) et celui de la troisième (31) et le mouvement à des vitesses égales ou opposées.
PCT/ES2009/070345 2008-08-18 2009-08-18 Dispositif de transmission WO2010020702A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200802451 2008-08-18
ES200802451 2008-08-18

Publications (1)

Publication Number Publication Date
WO2010020702A1 true WO2010020702A1 (fr) 2010-02-25

Family

ID=41706885

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2009/070345 WO2010020702A1 (fr) 2008-08-18 2009-08-18 Dispositif de transmission

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WO (1) WO2010020702A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1099931A (fr) * 1953-03-06 1955-09-14 Convertisseur mécanique de couple
FR2404775A1 (fr) * 1977-10-03 1979-04-27 Combastet Michel Convertisseur de couple
US4334440A (en) * 1978-10-10 1982-06-15 Hugo Fonck Automatic transmission
GB2238090A (en) * 1989-10-16 1991-05-22 John Harries Power transmission system comprising two sets of epicyclic gears
WO1996032597A1 (fr) * 1995-04-12 1996-10-17 Jetromatic Development Plan Oy Equipement de transfert d'energie
WO2001013007A1 (fr) * 1999-08-12 2001-02-22 Alpha Getriebebau Gmbh Transmission a engrenages planetaires

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1099931A (fr) * 1953-03-06 1955-09-14 Convertisseur mécanique de couple
FR2404775A1 (fr) * 1977-10-03 1979-04-27 Combastet Michel Convertisseur de couple
US4334440A (en) * 1978-10-10 1982-06-15 Hugo Fonck Automatic transmission
GB2238090A (en) * 1989-10-16 1991-05-22 John Harries Power transmission system comprising two sets of epicyclic gears
WO1996032597A1 (fr) * 1995-04-12 1996-10-17 Jetromatic Development Plan Oy Equipement de transfert d'energie
WO2001013007A1 (fr) * 1999-08-12 2001-02-22 Alpha Getriebebau Gmbh Transmission a engrenages planetaires

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