FR2805586A1 - Variable speed mechanical coupling, uses a two-part epicyclic gear train with the controller driving one of the gear wheels at a speed between zero and the full control speed - Google Patents

Variable speed mechanical coupling, uses a two-part epicyclic gear train with the controller driving one of the gear wheels at a speed between zero and the full control speed Download PDF

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Publication number
FR2805586A1
FR2805586A1 FR0002292A FR0002292A FR2805586A1 FR 2805586 A1 FR2805586 A1 FR 2805586A1 FR 0002292 A FR0002292 A FR 0002292A FR 0002292 A FR0002292 A FR 0002292A FR 2805586 A1 FR2805586 A1 FR 2805586A1
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France
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speed
plate
control
zero
speed variation
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FR0002292A
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French (fr)
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FR2805586B1 (en
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Sebastien Yann Barthel Chanson
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Individual
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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
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The variable-speed coupling uses epicyclic gears, and is designed as three functional units: power transmission, control mechanism and control interface. The power transmission has three coupled gears (A,B,C) and the control mechanism has three coupled gears (D,E,F). The control interface (G) acts on one of the control wheels (E), adjusting its speed to control the transmission speed ratio.

Description

La présente invention concerne un variateur de vitesse. The present invention relates to a variable speed drive.

Ce variateur est composé de trois parties : une de transmission de puissance, une de commande et une de pilotage. This drive is made up of three parts: one for power transmission, one for control and one for control.

La partie transmission de puissance est composée comme suit - un arbre d'entrée puissance avec pignon conique (A) ; - un plateau avec planétaires coniques, lui-même avec couronne extérieure pour vis sans fin (C) ; - un arbre de transmission finale de puissance avec pignon conique (B). La partie commande est composée comme suit - un arbre d'entrée commande avec pignon conique (D) ; - un plateau avec planétaires coniques, lui-même avec couronne extérieure (E) ; - un arbre final de commande avec pignon conique et vis sans fin (F) accouplée au plateau (C). The power transmission part is composed as follows - a power input shaft with bevel gear (A); - a plate with conical planets, itself with an outer ring for a worm (C); - a final power transmission shaft with bevel gear (B). The control part is composed as follows - a control input shaft with bevel gear (D); - a plate with conical planets, itself with an outer ring (E); - a final control shaft with bevel gear and worm (F) coupled to the plate (C).

La partie pilotage est composée d'un mécanisme (G) de retenue progressive ou d'un système de mise en mouvement mécanique accouplé au plateau (E). The piloting part is composed of a mechanism (G) of progressive restraint or of a system of mechanical movement coupled to the plate (E).

Le schéma 1 annexé illustre la disposition des différents éléments cités ci- dessus. Le mécanisme peut aussi être réalisé avec des pignons à denture droite. La construction est représentée sur le schéma 2. The appended diagram 1 illustrates the arrangement of the various elements mentioned above. The mechanism can also be produced with pinions with straight teeth. The construction is shown in diagram 2.

Les variantes avec pignons coniques et engrenages droits sont aussi possibles. Par exemple, transmission de puissance avec pignons droits et la partie commande avec pignons coniques. Les différentes variantes ne sont pas représentées. Les repères des différents éléments demeurent inchangés. Variants with bevel gears and spur gears are also possible. For example, power transmission with spur gears and the control part with bevel gears. The different variants are not shown. The marks of the various elements remain unchanged.

Principes de fonctionnement L'arbre de puissance (A) tournant à une vitesse W, cette vitesse est transmise au pignon conique. L'arbre de transmission finale de puissance (B) est supposé fixe en première phase. L'arbre d'entrée commande (D) est relié à l'arbre de puissance (A). Sa vitesse est un rapport de W fixe. Le plateau de commande (E) est supposé bloqué en première phase par le pilotage (G). Les satellites du plateau (E) transmettent donc leur vitesse à l'arbre (F). Cet arbre fait tourner la vis sans fin qui est reliée au plateau (C). Le rapport de vitesse entre la vis sans fin et le plateau (C) doit être tel que les satellites de ce plateau ne transmettent aucune puissance à l'arbre de sortie puissance (B). Operating principles Since the power shaft (A) rotates at a speed W, this speed is transmitted to the bevel gear. The final power transmission shaft (B) is assumed to be fixed in the first phase. The control input shaft (D) is connected to the power shaft (A). Its speed is a fixed W ratio. The control plate (E) is assumed to be blocked in the first phase by the control (G). The satellites of the plateau (E) therefore transmit their speed to the shaft (F). This shaft turns the worm which is connected to the plate (C). The speed ratio between the worm and the plate (C) must be such that the satellites of this plate do not transmit any power to the power output shaft (B).

En seconde phase, le plateau (E) est mis en mouvement soit par relâchement, soit par introduction d'une vitesse de rotation d'une façon progressive. La vitesse transmise à l'arbre (F) est donc plus faible. La vitesse du plateau (C) diminue et le rapport entre l'arbre (A) et les satellites du plateau (C) introduit une vitesse dans le plateau (B). In the second phase, the plate (E) is set in motion either by relaxation, or by the introduction of a rotational speed in a progressive manner. The speed transmitted to the shaft (F) is therefore lower. The speed of the plate (C) decreases and the ratio between the shaft (A) and the satellites of the plate (C) introduces a speed into the plate (B).

Le processus se poursuit jusqu'à ce que le plateau (E) ait atteint une vitesse qui ne permettra plus aux planétaires de transmettre de vitesse à l'arbre (F). Par conséquent, le plateau (C) ne tournera plus et les planétaires de ce plateau transmettront toute la vitesse W à l'arbre (B). The process continues until the plateau (E) has reached a speed that will no longer allow the planetary to transmit speed to the tree (F). Consequently, the plate (C) will no longer rotate and the planets of this plate will transmit all the speed W to the shaft (B).

La puissance requise à l'arrêt du plateau (E) ou à sa mise en mouvement est très faible du fait que le plateau (C) a tendance à être entraîné par l'arbre (A). Donc, la puissance à dissiper est la résultante des frottements dans le système de commande, et notamment dans la vis sans fin, très faible en rapport de la puissance transmise. The power required to stop the plate (E) or to set it in motion is very low because the plate (C) tends to be driven by the shaft (A). Therefore, the power to be dissipated is the result of friction in the control system, and in particular in the worm, very low in relation to the transmitted power.

Le système de commande est indépendant de la transmission de puissance.The control system is independent of the power transmission.

La rotation de l'arbre (E) est soumise à une variation allant de 0 à 1, ce rapport étant le même que le rapport de variation de vitesse de l'arbre de sortie puissance (B). The rotation of the shaft (E) is subject to a variation ranging from 0 to 1, this ratio being the same as the speed variation ratio of the power output shaft (B).

Claims (5)

REVENDICATIONS 1) Le dispositif de variation de vitesse constitué de trois parties distinctes: une de transmission de puissance, une de commande et une de pilotage, caractérisé en ce que la transmission de puissance est composée d'un arbre d'entrée à pignon conique, d'un plateau avec planétaires et couronne extérieure et d'un arbre de sortie avec pignon conique.1) The speed variation device made up of three distinct parts: one for power transmission, one for control and one for piloting, characterized in that the power transmission is composed of an input shaft with a bevel gear, d '' a plate with planetary and outer crown and an output shaft with bevel gear. 2) Dispositif de variation de vitesse selon la revendication 1 caractérisé en ce que le système de commande est composé d'un arbre d'entrée à pignon conique, d'un plateau avec planétaires et couronne extérieure et d'un arbre de sortie avec pignon conique et vis sans fin accouplée au plateau du dispositif 3.2) speed variation device according to claim 1 characterized in that the control system is composed of an input shaft with a bevel gear, a plate with planets and outer ring and an output shaft with pinion conical and worm screw coupled to the device plate 3. 3) Dispositif de variation de vitesse selon la revendication 1 caractérisé en ce que le pilotage est assuré soit par un arrêt en rotation progressive, soit par une mise en rotation par un système mécanique du plateau dispositif 4.3) A speed variation device according to claim 1 characterized in that the control is ensured either by a progressive rotation stop, or by a rotation by a mechanical system of the device plate 4. 4) Dispositif de variation de vitesse selon l'une quelconque des revendications précédentes caractérisé en ce que le mécanisme peut être composé avec des engrenages à denture droite.4) Speed variation device according to any one of the preceding claims, characterized in that the mechanism can be composed with gears with straight teeth. 5) Dispositif de variation de vitesse selon les revendications précédentes caractérisé en ce que le principe de fonctionnement n'est pas rattaché à un type de denture.5) A speed variation device according to the preceding claims characterized in that the operating principle is not related to a type of toothing.
FR0002292A 2000-02-24 2000-02-24 0/1 SPEED VARIATOR Expired - Fee Related FR2805586B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0002292A FR2805586B1 (en) 2000-02-24 2000-02-24 0/1 SPEED VARIATOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0002292A FR2805586B1 (en) 2000-02-24 2000-02-24 0/1 SPEED VARIATOR

Publications (2)

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FR2805586A1 true FR2805586A1 (en) 2001-08-31
FR2805586B1 FR2805586B1 (en) 2002-05-03

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FR0002292A Expired - Fee Related FR2805586B1 (en) 2000-02-24 2000-02-24 0/1 SPEED VARIATOR

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2034328A1 (en) * 1969-03-17 1970-12-11 Filipuzzi Roger
DE3818951A1 (en) * 1988-06-03 1989-05-03 Hartmann Johannes Continuously variable transmission - featuring frictional engagement and suitable for high torques
DE3806292A1 (en) * 1988-02-27 1989-09-07 Helmut Jakob Conrad Hagemann Gear mechanism
DE19530245A1 (en) * 1995-08-17 1997-02-20 Gerhard Huesson Steplessly-adjustable automatic gearbox

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2034328A1 (en) * 1969-03-17 1970-12-11 Filipuzzi Roger
DE3806292A1 (en) * 1988-02-27 1989-09-07 Helmut Jakob Conrad Hagemann Gear mechanism
DE3818951A1 (en) * 1988-06-03 1989-05-03 Hartmann Johannes Continuously variable transmission - featuring frictional engagement and suitable for high torques
DE19530245A1 (en) * 1995-08-17 1997-02-20 Gerhard Huesson Steplessly-adjustable automatic gearbox

Also Published As

Publication number Publication date
FR2805586B1 (en) 2002-05-03

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