WO2016038933A1 - Transmission continue - Google Patents

Transmission continue Download PDF

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Publication number
WO2016038933A1
WO2016038933A1 PCT/JP2015/063776 JP2015063776W WO2016038933A1 WO 2016038933 A1 WO2016038933 A1 WO 2016038933A1 JP 2015063776 W JP2015063776 W JP 2015063776W WO 2016038933 A1 WO2016038933 A1 WO 2016038933A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulley
continuously variable
pair
variable transmission
input
Prior art date
Application number
PCT/JP2015/063776
Other languages
English (en)
Japanese (ja)
Inventor
アンドレイ ピディン
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Publication of WO2016038933A1 publication Critical patent/WO2016038933A1/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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H9/20—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts both flanges of the pulleys being adjustable
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/49—Features essential to V-belts pulleys

Definitions

  • the present invention relates to a continuously variable transmission including a pulley.
  • a central wall is provided between pulleys, and two endless transmission members are wound around the central wall to prevent twisting of the endless transmission member.
  • an object of the present invention is to provide a continuously variable transmission that can prevent torsion of an endless transmission member without increasing power loss.
  • the present invention provides: Form V-grooves on the pulley surface of the input pulley and output pulley, A continuously variable transmission for transmitting a driving force by winding an endless transmission member around a V groove of the input pulley and the output pulley;
  • the input pulley or the output pulley is A pair of first pulleys movable in the axial direction with respect to the transmission case;
  • a pair of second pulleys capable of rotating relative to the first pulley and movable integrally in the axial direction;
  • the second pulley has the pulley surface, the endless transmission member is in contact with the pulley surface, and is connected to the rotation shaft so as to rotate integrally with the rotation shaft,
  • the link mechanism is characterized by expanding and contracting so that the movement amounts of the pair of first pulleys in the axial direction are equal to each other.
  • the amount of movement of the pair of first pulleys in the axial direction is equalized by the function of the link mechanism. Therefore, it is possible to prevent the endless transmission member from being twisted due to a difference in the amount of movement of the first pulley.
  • the first pulley and the second pulley can be rotated relative to each other, only the second pulley rotates integrally with the rotating shaft, and the first pulley does not rotate integrally with the rotating shaft. Therefore, according to the continuously variable transmission of the present invention, the mass of the second pulley that rotates integrally with the rotating shaft can be reduced as compared with the conventional one, and the power loss can be reduced.
  • the link mechanism is arranged corresponding to the position of the center in the axial direction of the pair of first pulleys, and the center link is rotatably supported by the transmission case at the center, One end may be connected to the end of the central link, and the other end may be composed of a pair of connecting links connected to the first pulley.
  • a link mechanism can be configured with a total of three links, one central link and two connecting links, and the movement amount in the axial direction of the pair of first pulleys can be synchronized with a simple configuration. Can do.
  • the first pulley includes a sliding portion that slides with the transmission case, and a plurality of the sliding portions are provided at intervals in the radial direction of the first pulley. It is preferable. According to such a configuration, since the first pulley is supported by the plurality of sliding portions, the first pulley can be prevented from being inclined and the first pulley can be stably slid.
  • Explanatory drawing which shows embodiment of the continuously variable transmission of this invention.
  • Explanatory drawing which shows FIG. 1 in the state rotated 90 degrees centering on the rotating shaft.
  • Sectional drawing which shows the continuously variable transmission of this embodiment.
  • the perspective view which shows the friction reduction part arrange
  • Sectional drawing which shows the 2nd pulley of this embodiment.
  • Sectional drawing which shows the state from which the width
  • the continuously variable transmission according to this embodiment includes an input pulley, an output pulley, and a belt-like endless transmission member including a belt (or a chain) wound around the two pulleys.
  • a belt-like endless transmission member including a belt (or a chain) wound around the two pulleys.
  • the input pulley and the output pulley are configured in the same manner, the input pulley will be described in detail, and the detailed description of the output pulley will be omitted.
  • the input pulley 1 is provided on an input shaft 2 as a rotating shaft to which power from an internal combustion engine or an electric motor is transmitted.
  • 2 shows FIG. 1 in a state in which the input shaft 2 is rotated by 90 °.
  • the input shaft 2 is rotatably supported by a transmission case 3 that houses the input pulley 1.
  • the input pulley 1 is composed of a pair of pulley halves 4.
  • the pulley half 4 is provided with pulley surfaces 4a that form V-grooves 6 around which the endless transmission member 5 is wound.
  • the transmission case 3 includes a fixing portion 7 attached with a bolt 7a.
  • the pair of pulley halves 4 includes a moving portion 8 that can move in the axial direction with respect to the fixed portion 7.
  • the moving unit 8 is attached to the fixed unit 7 so as not to rotate about the input shaft 2.
  • This moving part 8 corresponds to the first pulley of this embodiment.
  • a cylindrical portion 7 b extending toward the adjacent moving portion 8 is provided at the radially inner end of the fixed portion 7.
  • the moving portion 8 is provided so as to be slidable in the axial direction at two locations, the outer peripheral surface of the fixed portion 7 and the outer peripheral surface of the cylindrical portion 7b.
  • two portions that is, a portion that contacts the outer peripheral surface of the fixed portion 7 of the moving portion 8 and a portion that contacts the outer peripheral surface of the cylindrical portion 7b correspond to the sliding portion of the present invention.
  • the two sliding portions are provided corresponding to positions when the winding radius of the endless transmission member 5 is maximized and minimized.
  • a hydraulic chamber 9 is defined between the fixed portion 7 and the moving portion 8.
  • the moving portion 8 is formed with a conical tapered surface 8 a having the same shape as the pulley surface 4 a that forms the V-groove 6.
  • a conical plate-like friction reducing portion 11 having the same shape as the tapered surface 8a is disposed on the tapered surface 8a of the moving portion 8. As shown in FIG. 4, the friction reducing portion 11 is provided with a plurality of rectangular through holes 11a extending in the radial direction. A cylindrical roller 12 is accommodated in each through hole 11a.
  • a conical plate-like pulley half disk 13 having the same shape as the friction reducing portion 11 is disposed on the surface of the friction reducing portion 11 opposite to the moving portion 8.
  • the pulley half disk 13 slides on the tapered surface 8 a (surface) of the moving unit 8 via the friction reducing unit 11.
  • This pulley half disk 13 corresponds to the second pulley of the present invention.
  • the pulley half body disk 13 includes a pulley surface 4 a that contacts the endless transmission member 5 and forms a V groove 6.
  • a cylindrical portion 13 a that is spline-coupled with the input shaft 2 is provided at the radially inner end of the pulley half disk 13. Thereby, the pulley half body disk 13 rotates integrally with the input shaft 2.
  • the transmission case 3 is provided with a central link 21 corresponding to the centers of the pair of pulley half disks 13.
  • the center link 21 is pivotally supported by the transmission case 3 at the center thereof.
  • One end of a connecting link 23 is rotatably connected to both ends of the central link 21.
  • the other end of each connecting link 23 is rotatably connected to a moving part 8 as a first pulley.
  • the central link 21 and the connecting link 23 constitute a link mechanism.
  • the moving unit 8 moves by supplying or discharging oil to the hydraulic chamber 9, a pair of movements is performed by the action of the central link 21 and the connecting link 23 that form the link mechanism.
  • the amount of movement of the portion 8 in the axial direction becomes equal. Therefore, according to the continuously variable transmission of the present embodiment, when the moving amount of the moving unit 8 is different, the winding position of the endless transmission member 5 is shifted between the input pulley 1 and the output pulley, and the endless transmission member 5 is twisted. Can be prevented.
  • the moving unit 8 is provided in the transmission case 3 through the fixed unit 7 so as not to rotate. For this reason, in the continuously variable transmission according to the present embodiment, only the pulley half disk 13 rotates integrally with the input shaft 2, and the moving unit 8 does not rotate integrally with the input shaft 2. Therefore, according to the continuously variable transmission of the present embodiment, when the input shaft 2 is rotated, the number of components of the input pulley 1 that rotates together with the input shaft 2 is smaller than that in the prior art. Can be reduced, and power loss can be suppressed.
  • the input pulley 1 is rotated with the moving portion 8 as the first pulley provided in the transmission case 3 so as to be prevented from rotating via the fixing portion 7.
  • the input shaft 2 is movable in the axial direction with respect to the input shaft 2 and is constituted by a pulley half disk 13 as a second pulley half that rotates integrally with the input shaft 2.
  • the moving unit 8 as the first pulley that changes the width of the V-groove 6 is not affected by the rotation of the input shaft 2 and no centrifugal force is generated. For this reason, when adjusting the width of the V-groove 6 to change the transmission ratio of the continuously variable transmission, the moving portion 8 can be moved in the axial direction simply by supplying less hydraulic pressure to the hydraulic chamber 9 than before. It is possible to further suppress power loss.
  • a plurality of circumferentially spaced spaces are arranged between the moving portion 8 as the first pulley and the pulley half disk 13 as the second pulley.
  • the friction reduction part 11 which has the roller 12 as a rolling element is provided.
  • the friction reducing unit 11 reduces the friction between the moving unit 8 as the first pulley and the pulley half disk 13 as the second pulley, making the pulley half disk 13 easier to rotate, and further power. Loss can be reduced. Further, since a plurality of rollers 12 as rolling elements are arranged in the circumferential direction at intervals in the friction reducing portion 11, the pulley half disk 13 can be stably rotated.
  • the output pulley having the same configuration as that of the input pulley 1 has been described.
  • the moving half of the output pulley of the present invention is not limited to this, and the width of the V groove 6 of the input pulley 1 is not limited thereto. It is only necessary that the width of the V-groove decreases as the width of the V-groove decreases and the width of the V-groove increases as the width of the V-groove 6 of the input pulley 1 decreases. Therefore, for example, the moving half of the output pulley may be biased to one side by a spring.
  • the motive power source of the moving part 8 of this invention is not restricted to this.
  • the moving portion 8 may be moved by an electric actuator to change / adjust the width of the V groove.
  • the effect of the present invention it is possible to obtain the effect of the present invention that the amount of movement of the pair of moving portions 8 in the axial direction can be made equal by the link mechanism without controlling the electric actuator with high accuracy.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

La présente invention concerne une transmission continue dans laquelle une force d'entraînement est transmise au moyen d'un élément de transmission (5) sans fin enroulé autour de rainures en V (6) à la fois dans une poulie d'entrée (1) et dans une poulie de sortie. La poulie d'entrée (1) est pourvue : d'une paire de sections mobiles (8) ; d'une paire de demi-disques (13) de poulie reliés à un arbre d'entrée (2) ; et d'un maillon central (21) et de maillons de liaison (23, 23), les maillons central et de liaison (21, 23, 23) reliant la paire de sections mobiles (8) entre elles. L'élément de transmission (5) sans fin est en contact avec les surfaces (4a) de poulie des demi-disques (13) de poulie. Un mécanisme de liaison qui est constitué du maillon central (21) et des maillons de liaison (23, 23) s'étend et se contracte de sorte que les degrés de déplacement axial de la paire de sections mobiles (8) soient égaux.
PCT/JP2015/063776 2014-09-10 2015-05-13 Transmission continue WO2016038933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014184203 2014-09-10
JP2014-184203 2014-09-10

Publications (1)

Publication Number Publication Date
WO2016038933A1 true WO2016038933A1 (fr) 2016-03-17

Family

ID=55458696

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/063776 WO2016038933A1 (fr) 2014-09-10 2015-05-13 Transmission continue

Country Status (1)

Country Link
WO (1) WO2016038933A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020129214A1 (fr) * 2018-12-20 2020-06-25 三菱電機株式会社 Dispositif

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914866A (fr) * 1972-06-06 1974-02-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914866A (fr) * 1972-06-06 1974-02-08

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020129214A1 (fr) * 2018-12-20 2020-06-25 三菱電機株式会社 Dispositif
JPWO2020129214A1 (ja) * 2018-12-20 2021-09-02 三菱電機株式会社 機器
US11582875B2 (en) 2018-12-20 2023-02-14 Mitsubishi Electric Corporation Rail mount device with locking member and release button
JP7262486B2 (ja) 2018-12-20 2023-04-21 三菱電機株式会社 機器

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