WO2018061627A1 - Dispositif d'embrayage - Google Patents

Dispositif d'embrayage Download PDF

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Publication number
WO2018061627A1
WO2018061627A1 PCT/JP2017/031714 JP2017031714W WO2018061627A1 WO 2018061627 A1 WO2018061627 A1 WO 2018061627A1 JP 2017031714 W JP2017031714 W JP 2017031714W WO 2018061627 A1 WO2018061627 A1 WO 2018061627A1
Authority
WO
WIPO (PCT)
Prior art keywords
clutch
pressure receiving
friction
axial direction
receiving surface
Prior art date
Application number
PCT/JP2017/031714
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English (en)
Japanese (ja)
Inventor
未紗樹 美濃羽
亮一 今井
Original Assignee
株式会社エクセディ
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 株式会社エクセディ filed Critical 株式会社エクセディ
Publication of WO2018061627A1 publication Critical patent/WO2018061627A1/fr

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    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/24—Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches
    • F16D13/32—Friction clutches with axially-movable clutching members with conical friction surfaces cone clutches in which two or more axially-movable members are pressed from one side towards an axially-located member

Definitions

  • the present invention relates to a clutch device, and more particularly, to a clutch device disposed between an input side member to which power is input and an output side member from which power is output.
  • a clutch device is a motorcycle clutch device.
  • a motorcycle clutch device generally includes a clutch housing, a rotating body, and a clutch portion.
  • the clutch housing is connected to the crankshaft side of the engine, and the rotating body is connected to the transmission side.
  • a clutch part transmits or interrupts
  • the clutch portion has a plurality of drive plates and a plurality of driven plates in order to improve the frictional force.
  • the conventional motorcycle clutch device improves the frictional force by increasing the drive plate and the driven plate.
  • increasing the drive plate and the driven plate causes an increase in cost.
  • An object of the present invention is to reduce the cost of the clutch device.
  • the clutch device is disposed between an input-side member to which power is input and an output-side member from which power is output.
  • the clutch device includes a first cone clutch and a second cone clutch.
  • the first cone clutch includes a first pressure receiving portion having a tapered first pressure receiving surface, and a first friction portion having a first friction surface pressed against the first pressure receiving surface, and an input side member; Power is transmitted to and shut off from the output side member.
  • the second cone clutch has a tapered second pressure receiving surface, a second pressure receiving portion that can move relative to the first pressure receiving portion in the radial direction, and a second friction surface that is pressed against the second pressure receiving surface. And a friction portion, and is arranged side by side with the first cone clutch in the axial direction, and transmits and blocks power between the input side member and the output side member together with the first cone clutch.
  • the pressure receiving surfaces and friction surfaces of the first and second cone clutches are pressed, and power is transmitted from the input side member to the output side member.
  • the cone clutch in order to secure a sufficient torque capacity with one friction surface, it is necessary to reduce the taper angles of the pressure receiving surface and the friction surface. However, if the taper angle is too small, the wedge force becomes excessive, the friction surface sticks to the pressure receiving surface, and the clutch is difficult to disconnect.
  • two friction surfaces are provided by two cone clutches. For this reason, in the apparatus of the present invention, a necessary torque capacity can be ensured without increasing the pressing load.
  • the first pressure receiving portion of the first corn clutch and the second pressure receiving portion of the second corn clutch are relatively movable in the radial direction.
  • the pressure receiving portion is appropriately displaced in the radial direction when the friction surface is pressed against the pressure receiving surface. That is, when the pressure receiving portion moves in the radial direction, a shift during processing can be absorbed, and the contact between the two pressure receiving surfaces and the friction surface is stabilized. Therefore, vibration caused by processing accuracy and abnormal wear of the friction material can be suppressed.
  • the clutch device further includes a clutch housing connectable to an input side member and an output member connectable to an output side member.
  • the output member and the first and second cone clutches are accommodated in the inner peripheral portion of the clutch housing.
  • the first and second pressure receiving portions are provided on the inner peripheral portion of the clutch housing, and the first and second friction portions are provided on the outer peripheral portion of the output member.
  • the entire apparatus can be made compact.
  • the first pressure receiving portion has a first clutch shoe that rotates together with the clutch housing and has a first pressure receiving surface on the inner peripheral surface.
  • the second pressure receiving portion has a second clutch shoe that rotates together with the clutch housing and has a second pressure receiving surface on the inner peripheral surface.
  • first and second clutch shoes are provided separately from the clutch housing, a wide range of specifications can be handled by changing the specifications of the pressure receiving surfaces of the clutch shoes.
  • the clutch housing has a disk part and a cylindrical part formed extending in the axial direction from the outer peripheral part of the disk part and having a housing side engaging part.
  • the 1st and 2nd clutch shoes have the shoe side engaging part engaged with a housing side engaging part in an outer peripheral part.
  • the output member has a first output member and a second output member.
  • the first output member has a first friction portion on the outer peripheral portion.
  • the second output member has a second friction surface on the outer peripheral portion, is movable in the axial direction, and is rotatable in synchronization with the first output member.
  • friction portions constituting two cone clutches are formed on the outer peripheral portions of the first and second output members. This simplifies the configuration.
  • a clutch control unit for controlling on / off of the first and second cone clutches is further provided.
  • the clutch control unit includes an urging member and a release member.
  • the biasing member biases the first output member toward the first side in the axial direction and presses the first friction surface against the first pressure receiving surface.
  • the release member supports the urging member and urges the second output member toward the second side in the axial direction by the urging force of the urging member to press the second friction surface against the second pressure receiving surface.
  • the first output member and the second output member are biased by the biasing member so as to be attracted to each other. For this reason, the urging force does not act on other members, and a special member for receiving the urging force becomes unnecessary.
  • the release member is movable in the axial direction by a release mechanism.
  • the first and second cone clutches are clutched off.
  • the first output member and the second output member are arranged to face each other in the axial direction.
  • the first pressure receiving surface and the first friction surface are tapered so that the diameter decreases toward the first side in the axial direction.
  • the second pressure receiving surface and the second friction surface are tapered so that the diameter decreases toward the second side in the axial direction.
  • the space occupied by the first and second cone clutches in the axial direction can be made compact.
  • the cost of the clutch device can be reduced. Further, in the present invention, since the two friction surfaces are provided by the two cone clutches, the necessary torque capacity can be ensured without increasing the pressing load, that is, without increasing the release operation load. it can.
  • the first pressure receiving portion of the first corn clutch and the second pressure receiving portion of the second corn clutch are relatively movable in the radial direction. For this reason, the shift
  • FIG. 1 is a cross-sectional view of a motorcycle clutch device according to an embodiment of the present invention.
  • FIG. 2 is a partial front view of the apparatus of FIG. 1.
  • FIG. 2 is a partial cross-sectional view of the apparatus of FIG.
  • FIG. 2 is a partial cross-sectional view of the apparatus of FIG.
  • FIG. 1 is a cross-sectional view of a motorcycle clutch device as an example of a clutch device
  • FIG. 2 is a front partial view of the motorcycle clutch device.
  • axial direction indicates the left-right direction in FIG. 1
  • axially inner first side
  • second side indicates the left side of FIG. 1
  • axially outer second side
  • the motorcycle clutch device transmits power from the crankshaft of the engine to a transmission and interrupts power transmission by operating a release mechanism.
  • the clutch device includes a clutch housing 1, a clutch shoe 2, an output member 3, and a clutch control unit 4.
  • the clutch housing 1 has a disc portion 6 and a cylindrical portion 7 and is connected to an input gear 8.
  • the input gear 8 meshes with a drive gear (not shown) fixed to the crankshaft on the engine side, and power is input from the engine.
  • a hole 6a into which a transmission shaft is inserted is formed in the center portion. Further, a plurality of protrusions 6b protruding inward in the axial direction are formed at a predetermined interval in the circumferential direction at the radial intermediate portion of the disk portion 6. An elastic member 10 is mounted around the protrusion 6 b, and the protrusion 6 b and the elastic member 10 are inserted into a hole 8 a formed in the input gear 8.
  • a spring support portion 6 c is formed at the radial intermediate portion of the disc portion 6.
  • the spring 12 is supported by the spring support portion 6 c and the support plate 11 fixed to the side surface of the input gear 8.
  • the spring 12 elastically connects the clutch housing 1 and the input gear 8 in the rotational direction.
  • the support plate 11 is fixed to the tip of the protrusion 6b of the clutch housing 1 by a bolt 13 and a nut 14.
  • a disc spring 15 is disposed on the inner peripheral portion of the support plate 11 between the side surface of the input gear 8.
  • the cylindrical portion 7 is formed so as to extend outward from the outer peripheral edge of the disc portion 6 in the axial direction.
  • a plurality of notches 7a (housing side engaging portions) extending in the axial direction and opening outward in the axial direction are formed in the cylindrical portion 7 at predetermined intervals in the circumferential direction.
  • the clutch shoe 2 has a first clutch shoe 201 (first pressure receiving portion) and a second clutch shoe 202 (second pressure receiving portion) divided into two.
  • the first clutch shoe 201 and the second clutch shoe 202 are annular members, respectively, and are arranged along the inner peripheral surface of the cylindrical portion 7 of the clutch housing 1. Further, the first clutch shoe 201 is disposed on the outer side in the axial direction, and the second clutch shoe 202 is disposed on the inner side in the axial direction.
  • the first clutch shoe 201 and the second clutch shoe 202 are relatively movable in the radial direction.
  • the first clutch shoe 201 has a plurality of claws 201a (shoe side engaging portions) and a first pressure receiving surface 201b.
  • the plurality of claws 201a are formed on the outer peripheral surface of the first clutch shoe 201 so as to protrude further to the outer peripheral side.
  • the plurality of claws 201 a are arranged at predetermined intervals in the circumferential direction, and each claw 201 a is engaged with a notch 7 a formed in the cylindrical portion 7 of the clutch housing 1.
  • the first clutch shoe 201 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable.
  • the first pressure receiving surface 201b is formed on the inner peripheral surface of the first clutch shoe 201 in a tapered shape whose diameter decreases from the end surface on the outer side in the axial direction toward the inner side in the axial direction.
  • the second clutch shoe 202 has a plurality of claws 202a (shoe side engaging portions) and a second pressure receiving surface 202b.
  • the plurality of claws 202a are formed on the outer peripheral surface of the second clutch shoe 202 so as to protrude further to the outer peripheral side.
  • the plurality of claws 202 a are arranged at predetermined intervals in the circumferential direction, and each claw 202 a is engaged with a notch 7 a formed in the tubular portion 7 of the clutch housing 1.
  • the second clutch shoe 202 is movable in the axial direction with respect to the clutch housing 1 and is not rotatable.
  • the second pressure receiving surface 202b is formed on the inner peripheral surface of the second clutch shoe 202 in a tapered shape whose diameter decreases from the axially inner end surface toward the axially outer side.
  • the output member 3 is housed in the inner peripheral portion of the clutch housing 1, and includes a clutch center 21 (first output member), a pressure plate 22 (second output member), and a hub 23.
  • the clutch center 21 and the pressure plate 22 are both formed by sheet metal processing of an iron plate material.
  • the clutch center 21 has a disc part 21 a and a friction part 21 b (first friction part).
  • a spline hole 21c is formed in the central portion of the disc portion 21a, and the spline engagement is possible with the transmission shaft.
  • four through holes 21d are formed at predetermined intervals in the circumferential direction in the radial direction intermediate portion of the disc portion 21a.
  • the friction part 21b is formed by bending the outer peripheral part of the disk part 21a outward in the axial direction.
  • the friction part 21b faces the first pressure receiving surface 201b of the first clutch shoe 201 and is formed in a tapered shape having the same inclination as the first pressure receiving surface 201b.
  • An annular first friction material 25 is fixed to the outer peripheral surface of the friction portion 21b, and the surface of the first friction material 25 is a first friction surface 25a.
  • the pressure plate 22 is disposed on the inner side in the axial direction of the clutch center 21 so as to be opposed to the clutch center 21 and movable in the axial direction.
  • the pressure plate 22 has a disc part 22a and a friction part 22b (second friction part).
  • a spline hole 22c is formed at the center of the disc portion 22a.
  • four through holes 22d are formed at predetermined intervals in the circumferential direction in the inner peripheral portion of the disc portion 22a.
  • the friction portion 22b is formed by bending the outer peripheral portion of the disc portion 22a inward in the axial direction.
  • the friction portion 22b is opposed to the second pressure receiving surface 202b of the second clutch shoe 202, and is formed in a tapered shape having the same inclination as the second pressure receiving surface 202b.
  • An annular second friction material 26 is fixed to the outer peripheral surface of the friction portion 22b, and the surface of the second friction material 26 is a second friction surface 26a.
  • the first and second friction materials 25 and 26 are made of the same material, and here, a friction material for a four-wheeled vehicle used for a passenger car or the like is used.
  • the hub 23 is an annular member, and is disposed on the inner peripheral portion of the pressure plate 22 so as to abut on the side surface on the inner side in the axial direction of the inner peripheral portion of the clutch center 21.
  • the spline hole 23a is formed in the inner peripheral part of the hub 23, and the spline shaft 23b is formed in the outer peripheral surface.
  • the spline hole 23a can be engaged with a transmission shaft.
  • the spline shaft 23 b is engaged with the spline hole 22 c of the pressure plate 22.
  • the spline hole 22c of the pressure plate 22 and the spline shaft 23b of the hub 23 mesh with each other so as to be slidable in the axial direction.
  • the clutch center 21 can be connected to the transmission shaft through the spline hole 21c, and the pressure plate 22 can be connected to the transmission shaft through the spline engagement with the hub 23. Therefore, the clutch center 21 and the pressure plate 22 rotate in synchronization.
  • a thrust plate 27 is disposed between the side surface of the hub 23 and the side surface of the inner peripheral portion of the clutch housing 1 as shown in FIG.
  • first and second cone clutches C1, C2 In the configuration as described above, the first pressure receiving surface 201b of the first clutch shoe 201 and the first friction material 25 having the friction portion 21b and the first friction surface 25a formed on the outer peripheral portion of the clutch center 21 A one-corn clutch C1 is configured. Further, the second cone clutch C2 is constituted by the second pressure receiving surface 202b of the second clutch shoe 202 and the second friction material 26 having the friction portion 22b and the second friction surface 26a formed on the outer peripheral portion of the pressure plate 22. It is configured.
  • the clutch control unit 4 is disposed outside the clutch center 21 in the axial direction, and includes a release member 30 and four coil springs 40 (biasing members).
  • the release member 30 is moved in the axial direction by a release mechanism (not shown).
  • the release member 30 has an annular main body 31 and four protrusions 32.
  • the annular main body 31 can be penetrated by a rod of a release mechanism or the like through an inner peripheral portion.
  • the protrusion 32 is formed integrally with the main body 31 and protrudes inward in the axial direction from the main body 31.
  • the protrusion 32 penetrates the through hole 21d of the clutch center 21 toward the pressure plate 22 side.
  • the protrusion 32 has a screw hole 32a having a predetermined depth at the tip end on the inner side in the axial direction.
  • the tip end surface of the protrusion 32 is in contact with the axially outer side surface of the pressure plate 22.
  • a bolt 34 extending outward in the axial direction from the side surface on the inner side in the axial direction of the pressure plate 22 through the through hole 22 d is screwed into the screw hole 32 a of the protrusion 32. Thereby, the release member 30 is fixed to the pressure plate 22.
  • the coil spring 40 is disposed so as to surround the outer periphery of the protrusion 32 of the release member 30 as shown in FIGS. That is, the protrusion 32 passes through the inner peripheral portion of the coil spring 40.
  • One end of the coil spring 40 is in contact with the main body 31 of the release member 30, and the other end is in contact with the clutch center 21.
  • the coil spring 40 is mounted between the release member 30 and the clutch center 21 in a compressed state in a neutral state where no release operation is performed. For this reason, the coil spring 40 urges the clutch center 21 in the axial direction and urges the pressure plate 22 in the axial direction.
  • the torque transmitted to the clutch center 21 as described above is transmitted to the transmission shaft through the spline hole 21c of the clutch center 21.
  • the torque transmitted to the pressure plate 22 is transmitted from the pressure plate 22 to the transmission shaft via the hub 23.
  • the concentricity of the first pressure receiving surface 201b and the second pressure receiving surface 202b may be shifted due to a processing error. If two pressure receiving surfaces are formed on one member and the two concentricities deviate from each other, even if the friction surface uniformly contacts one pressure receiving surface, the friction surface against the other pressure receiving surface Will not contact evenly. In such a case, vibration is generated in the vehicle or the friction material is worn out.
  • the first pressure receiving surface 201b and the second pressure receiving surface 202b are relatively movable in the radial direction. For this reason, even if there is a machining error when tapering each pressure-receiving surface, the pressure-receiving surface moves in the radial direction by pressing the friction surface, the processing error is absorbed, and the friction surface is made uniform on any pressure-receiving surface It can be pressed against each other.
  • the release member 30 is moved inward in the axial direction against the urging force of the coil spring 40.
  • the pressure plate 22 fixed to the release member 30 also moves inward in the axial direction.
  • the pressing force of the pressure plate 22 on the second clutch shoe 202 (second pressure receiving surface 202b) is released.
  • the clutch center 21 is restricted from moving inward in the axial direction by the hub 23, the first pressure receiving force of the first clutch shoe 201 is released when the pressing force of the pressure plate 22 to the second clutch shoe 202 is released.
  • the pressing force between the surface 201b and the first friction surface 25a is also released.
  • the first cone clutch C1 and the second cone clutch C2 are clutch-off (release of power transmission: cutoff). In this clutch-off state, rotation from the clutch housing 1 is not transmitted to the clutch center 21 and the pressure plate 22.
  • the first cone clutch C1 is configured using a part of the clutch center 21 and the second cone clutch C2 is configured using a part of the pressure plate 22.
  • the pressure plate and the cone clutch may be configured separately.
  • the cost of the device can be reduced. Further, in the present invention, since the two friction surfaces are provided by the two cone clutches, the necessary torque capacity can be ensured without increasing the pressing load, that is, without increasing the release operation load. it can.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

La présente invention réduit le coût de dispositifs d'embrayage. Le dispositif d'embrayage selon l'invention est équipé d'un premier embrayage à cône (C1), d'un second embrayage à cône (C2) et d'une partie de commande d'embrayage (4). Le premier embrayage à cône (C1) est pourvu d'un premier sabot d'embrayage (201) présentant une première surface de réception de pression conique (201b), et d'une première partie de frottement (21b) présentant une première surface de frottement (25a) qui est pressée contre la première surface de réception de pression (201b), et transmet une puissance entre un élément côté entrée et un élément côté sortie. Le second embrayage à cône (C2) est pourvu d'un second sabot d'embrayage (202) présentant une seconde surface de réception de pression conique (202b) et pouvant se déplacer par rapport au premier sabot d'embrayage (201) dans la direction radiale, et d'une seconde partie de frottement (22b) présentant une seconde surface de frottement (26a) qui est pressée contre la seconde surface de réception de pression (202b). Le second embrayage à cône (C2) est disposé en ligne avec le premier embrayage à cône (C1) dans la direction axiale et, conjointement avec le premier embrayage à cône (C1), transmet la puissance entre l'élément côté entrée et l'élément côté sortie.
PCT/JP2017/031714 2016-09-30 2017-09-04 Dispositif d'embrayage WO2018061627A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016194186A JP2018054092A (ja) 2016-09-30 2016-09-30 クラッチ装置
JP2016-194186 2016-09-30

Publications (1)

Publication Number Publication Date
WO2018061627A1 true WO2018061627A1 (fr) 2018-04-05

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Application Number Title Priority Date Filing Date
PCT/JP2017/031714 WO2018061627A1 (fr) 2016-09-30 2017-09-04 Dispositif d'embrayage

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JP (1) JP2018054092A (fr)
WO (1) WO2018061627A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026733A (en) * 1932-10-08 1936-01-07 Gustave Fast Engineering Corp Friction clutch
JP2013185675A (ja) * 2012-03-09 2013-09-19 Exedy Corp モータサイクル用クラッチ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026733A (en) * 1932-10-08 1936-01-07 Gustave Fast Engineering Corp Friction clutch
JP2013185675A (ja) * 2012-03-09 2013-09-19 Exedy Corp モータサイクル用クラッチ装置

Also Published As

Publication number Publication date
JP2018054092A (ja) 2018-04-05

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